/**
 * Chirpy-Inspired Theme for LinuxLab.art
 * High-performance, minimalist technical publication theme
 */

/* ==========================================================================
   Design Tokens - Dark Mode (Default)
   ========================================================================== */
:root, [data-mode="dark"] {
  --main-bg: #1B1B1E;
  --mask-bg: rgba(0, 0, 0, 0.6);
  --main-border-color: #2E2E34;
  --card-bg: #212124;
  --card-hover-bg: #26262B;
  --sidebar-bg: #18181A;
  --sidebar-border: #28282C;
  --panel-bg: #212124;
  --topbar-bg: rgba(27, 27, 30, 0.85);

  --text-color: #E6EDF3;
  --text-muted-color: #8B949E;
  --heading-color: #FFFFFF;
  --link-color: var(--accent-color);
  --link-hover-color: var(--accent-color-hover);
  
  --accent-cyan: #06B6D4;
  --accent-cyan-light: #22D3EE;
  --accent-emerald: #10B981;
  --accent-amber: #F59E0B;
  --accent-rose: #F43F5E;

  --code-bg: #161618;
  --code-header-bg: #1F1F23;
  --code-color: #E2E8F0;
  --code-border: #2D2D32;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, Menlo, Monaco, Consolas, monospace;

  --sidebar-width: 270px;
  --panel-width: 290px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Accent Palette Colors & Dynamic RGB Channels */
:root, [data-accent="cyan"] {
  --accent-color: #06B6D4;
  --accent-color-hover: #22D3EE;
  --accent-rgb: 6, 182, 212;
}
[data-accent="emerald"] {
  --accent-color: #10B981;
  --accent-color-hover: #34D399;
  --accent-rgb: 16, 185, 129;
}
[data-accent="violet"] {
  --accent-color: #8B5CF6;
  --accent-color-hover: #A78BFA;
  --accent-rgb: 139, 92, 246;
}
[data-accent="amber"] {
  --accent-color: #F59E0B;
  --accent-color-hover: #FBBF24;
  --accent-rgb: 245, 158, 11;
}
[data-accent="rose"] {
  --accent-color: #F43F5E;
  --accent-color-hover: #FB7185;
  --accent-rgb: 244, 63, 94;
}

/* Light Mode */
[data-mode="light"] {
  --main-bg: #F8F9FA;
  --mask-bg: rgba(255, 255, 255, 0.6);
  --main-border-color: #E5E7EB;
  --card-bg: #FFFFFF;
  --card-hover-bg: #F3F4F6;
  --sidebar-bg: #FFFFFF;
  --sidebar-border: #E5E7EB;
  --panel-bg: #FFFFFF;
  --topbar-bg: rgba(248, 249, 250, 0.85);

  --text-color: #1F2937;
  --text-muted-color: #6B7280;
  --heading-color: #111827;
  --link-color: var(--accent-color);
  --link-hover-color: var(--accent-color-hover);

  --code-bg: #F3F4F6;
  --code-header-bg: #E5E7EB;
  --code-color: #1F2937;
  --code-border: #D1D5DB;
}

/* OLED Midnight Mode (Ultra-Deep Linear Aesthetic) */
[data-mode="midnight"] {
  --main-bg: #070709;
  --mask-bg: rgba(0, 0, 0, 0.88);
  --main-border-color: #161720;
  --card-bg: #0C0D11;
  --card-hover-bg: #121319;
  --sidebar-bg: #050507;
  --sidebar-border: #13141A;
  --panel-bg: #090A0D;
  --topbar-bg: rgba(7, 7, 9, 0.90);

  --text-color: #F1F5F9;
  --text-muted-color: #8C96A8;
  --heading-color: #FFFFFF;
  --link-color: var(--accent-color);
  --link-hover-color: var(--accent-color-hover);

  --code-bg: #040507;
  --code-header-bg: #0D0E13;
  --code-color: #E2E8F0;
  --code-border: #181924;
}

[data-mode="midnight"] .chirpy-card {
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.85), 0 0 0 1px #161722;
}

[data-mode="midnight"] .chirpy-card:hover {
  box-shadow: 0 12px 30px -4px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(var(--accent-rgb), 0.45), 0 0 25px -5px rgba(var(--accent-rgb), 0.2);
}

/* Ambient Dynamic Mesh Glow Background (2026 Modern Aesthetic) */
.ambient-glow-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  will-change: transform;
}

[data-mode="light"] .glow-orb {
  opacity: 0.22;
  filter: blur(100px);
}

.glow-orb-1 {
  top: -8%;
  left: 22%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.22) 0%, transparent 70%);
  animation: orbFloat1 22s ease-in-out infinite alternate;
}

.glow-orb-2 {
  top: 48%;
  right: -6%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.16) 0%, transparent 70%);
  animation: orbFloat2 26s ease-in-out infinite alternate;
}

.glow-orb-3 {
  bottom: -10%;
  left: 36%;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.14) 0%, transparent 70%);
  animation: orbFloat3 20s ease-in-out infinite alternate;
}

@keyframes orbFloat1 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(50px, 70px, 0) scale(1.15); }
}

@keyframes orbFloat2 {
  0% { transform: translate3d(0, 0, 0) scale(1.1); }
  100% { transform: translate3d(-60px, -50px, 0) scale(0.92); }
}

@keyframes orbFloat3 {
  0% { transform: translate3d(0, 0, 0) scale(0.92); }
  100% { transform: translate3d(-40px, -60px, 0) scale(1.12); }
}

/* ==========================================================================
   Resets & Base Styles
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--main-bg);
  color: var(--text-color);
  line-height: 1.7;
  min-height: 100vh;
  width: 100%;
  overflow-x: hidden;
  display: flex;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input {
  font-family: inherit;
}

/* ==========================================================================
   Chirpy Left Fixed Sidebar
   ========================================================================== */
#sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  height: 100dvh;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--main-border-color) transparent;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 32px 18px 24px;
  z-index: 100;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.25s ease;
}

.sidebar-main-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.sidebar-profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 24px;
}

.avatar-wrapper {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  border: 2px solid var(--accent-color);
  box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--accent-color);
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 800;
  transition: var(--transition);
}

.avatar-wrapper:hover {
  transform: rotate(6deg) scale(1.06);
  box-shadow: 0 0 28px rgba(var(--accent-rgb), 0.45);
}

.avatar-prompt {
  line-height: 1;
}

.site-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--heading-color);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.site-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted-color);
  line-height: 1.4;
  padding: 0 6px;
  font-family: var(--font-mono);
}

.typing-cursor {
  color: var(--accent-color);
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Sidebar Nav */
.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-grow: 1;
}

.sidebar-nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-muted-color);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: var(--transition);
}

.sidebar-nav-item a:hover {
  color: var(--heading-color);
  background: var(--card-bg);
  transform: translateX(3px);
}

.sidebar-nav-item.active a {
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.12);
  border-left: 3px solid var(--accent-color);
  font-weight: 700;
}

.sidebar-nav-icon {
  font-size: 1.05rem;
  width: 20px;
  text-align: center;
}

.sidebar-admin-link {
  color: var(--accent-emerald) !important;
}

.sidebar-admin-link:hover {
  background: rgba(16, 185, 129, 0.12) !important;
}

/* Sidebar Bottom Controls */
.sidebar-bottom {
  border-top: 1px solid var(--sidebar-border);
  padding-top: 16px;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-social-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.social-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted-color);
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  font-size: 0.9rem;
  transition: var(--transition);
}

.social-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.25);
}

.mode-toggle-wrap {
  display: flex;
  align-items: center;
  width: 100%;
}

.mode-segmented-switch {
  display: flex;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 3px;
  width: 100%;
  box-sizing: border-box;
}

.mode-segment-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 5px 8px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-muted-color);
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  touch-action: manipulation;
}

.mode-segment-btn:hover {
  color: var(--heading-color);
}

.mode-segment-btn.active {
  background: var(--accent-color);
  color: #000000;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.35);
}

/* User Session Badge & Logout */
.sidebar-user-session {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  margin-top: 2px;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
}

.session-user-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  overflow: hidden;
}

.session-user-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.7);
  flex-shrink: 0;
}

.session-user-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--heading-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
}

.sidebar-logout-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted-color);
  background: rgba(244, 63, 94, 0.08);
  border: 1px solid rgba(244, 63, 94, 0.25);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  text-decoration: none;
  transition: var(--transition);
  flex-shrink: 0;
}

.sidebar-logout-btn:hover {
  background: rgba(244, 63, 94, 0.22);
  border-color: rgba(244, 63, 94, 0.6);
  color: #F43F5E;
  transform: translateY(-1px);
}

/* ==========================================================================
   Main Wrapper & Topbar
   ========================================================================== */
#main-wrapper {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#topbar {
  height: 64px;
  border-bottom: 1px solid var(--main-border-color);
  background: var(--topbar-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mobile-menu-btn {
  display: none;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  border-color: var(--accent-color);
}

.hamburger-bar {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 2px;
  transition: all 0.25s ease-in-out;
}

.mobile-menu-btn.active .hamburger-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .hamburger-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.topbar-mobile-brand {
  display: none;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--heading-color);
  text-decoration: none;
}

.topbar-mobile-brand .brand-code {
  color: var(--accent-color);
  font-family: var(--font-mono);
}

.breadcrumb-trail {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted-color);
}

.crumb-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted-color);
}

.crumb-link:hover {
  color: var(--accent-color);
}

.crumb-sep {
  color: var(--main-border-color);
}

.crumb-active {
  color: var(--heading-color);
  font-weight: 600;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-icon-btn {
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  color: var(--text-color);
  border-radius: var(--radius-full);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  touch-action: manipulation;
}

.topbar-icon-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-1px);
}

.mobile-search-trigger {
  display: none;
}

.topbar-mode-btn {
  display: none;
  font-size: 0.95rem;
}

.topbar-search-wrap {
  position: relative;
  width: 280px;
}

.topbar-search-form {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  transition: var(--transition);
}

.topbar-search-form:focus-within {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.2);
}

.search-input-icon {
  color: var(--text-muted-color);
  flex-shrink: 0;
}

.topbar-search-form input {
  background: none;
  border: none;
  outline: none;
  font-size: 0.85rem;
  color: var(--text-color);
  width: 100%;
}

.topbar-search-form input::placeholder {
  color: var(--text-muted-color);
}

.kbd-shortcut {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--text-muted-color);
  flex-shrink: 0;
}

/* ==========================================================================
   Content Grid: Core Content + Right Panel
   ========================================================================== */
#content-container {
  display: flex;
  gap: 32px;
  padding: 24px 28px 48px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
}

#main-content {
  flex: 1;
  min-width: 0;
}

#right-panel {
  width: var(--panel-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ==========================================================================
   Chirpy Post Cards List
   ========================================================================== */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.chirpy-card {
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: var(--transition);
  position: relative;
  box-sizing: border-box;
}

.chirpy-card:hover {
  background: var(--card-hover-bg);
  border-color: rgba(var(--accent-rgb), 0.45);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.chirpy-card.pinned {
  border-left: 4px solid var(--accent-cyan);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--heading-color);
  margin-bottom: 10px;
}

.card-title a:hover {
  color: var(--accent-cyan);
}

.card-excerpt {
  font-size: 0.95rem;
  color: var(--text-muted-color);
  line-height: 1.65;
  margin-bottom: 16px;
}

.card-meta-row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-muted-color);
  flex-wrap: wrap;
}

.card-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.card-badge {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-family: var(--font-mono);
}

/* ==========================================================================
   Chirpy Prompts / Callouts
   ========================================================================== */
.prompt-tip, .prompt-info, .prompt-warning, .prompt-danger {
  border-left: 4px solid;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 18px;
  margin: 20px 0;
  font-size: 0.94rem;
  line-height: 1.6;
}

.prompt-tip {
  background: rgba(16, 185, 129, 0.08);
  border-color: var(--accent-emerald);
  color: var(--text-color);
}

.prompt-info {
  background: rgba(6, 182, 212, 0.08);
  border-color: var(--accent-cyan);
  color: var(--text-color);
}

.prompt-warning {
  background: rgba(245, 158, 11, 0.08);
  border-color: var(--accent-amber);
  color: var(--text-color);
}

.prompt-danger {
  background: rgba(244, 63, 94, 0.08);
  border-color: var(--accent-rose);
  color: var(--text-color);
}

/* ==========================================================================
   Code Blocks & Typography
   ========================================================================== */
pre, code {
  font-family: var(--font-mono);
}

code:not(pre code) {
  font-size: 0.85em;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-cyan-light);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--code-color);
  margin: 22px 0;
  position: relative;
}

/* ==========================================================================
   Right Panel Widgets
   ========================================================================== */
.panel-box {
  background: var(--panel-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 20px;
}

.panel-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--heading-color);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-item {
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  color: var(--text-muted-color);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  transition: var(--transition);
}

.tag-item:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.panel-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  padding: 6px 0;
  border-bottom: 1px dashed var(--main-border-color);
  font-family: var(--font-mono);
}

.panel-stat-key {
  color: var(--text-muted-color);
}

.panel-stat-val {
  color: var(--accent-cyan);
  font-weight: 600;
}

/* ==========================================================================
   Chirpy Archive Timeline & Tags Styles
   ========================================================================== */
.timeline-container {
  position: relative;
  margin-top: 24px;
}

.timeline-year-group {
  margin-bottom: 36px;
}

.timeline-year-header {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--heading-color);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--main-border-color);
}

.timeline-badge {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  color: var(--accent-cyan);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.timeline-list {
  list-style: none;
  position: relative;
  padding-left: 24px;
  border-left: 2px solid var(--main-border-color);
}

.timeline-item {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 10px 0;
}

.timeline-dot {
  position: absolute;
  left: -29px;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--main-bg);
  border: 2px solid var(--accent-cyan);
  transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.timeline-date {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted-color);
  min-width: 60px;
}

.timeline-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--heading-color);
  transition: var(--transition);
}

.timeline-title:hover {
  color: var(--accent-cyan);
}

.btn-archive-nav {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  color: var(--link-color);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-archive-nav:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Tag Cloud Styles */
.chirpy-tag-cloud-box {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.chirpy-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  color: var(--text-color);
  transition: var(--transition);
}

.chirpy-tag-chip:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-1px);
}

.tag-count {
  font-size: 0.72rem;
  background: var(--main-bg);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
}

.empty-timeline-card {
  padding: 48px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.empty-timeline-card .empty-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.empty-timeline-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--heading-color);
}

.empty-timeline-card p {
  color: var(--text-muted-color);
  margin-bottom: 20px;
}

.btn-back-home {
  display: inline-block;
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  transition: var(--transition);
}

.btn-back-home:hover {
  background: var(--accent-cyan-light);
  transform: translateY(-1px);
}

.error-badge {
  font-size: 4rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--accent-rose);
  line-height: 1;
}

/* ==========================================================================
   Wiki & Knowledge Base Category Grid Styles
   ========================================================================== */
.tag-section-title {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--heading-color);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.featured-tag-chip {
  padding: 8px 16px;
  font-size: 0.92rem;
  border-color: rgba(6, 182, 212, 0.3);
  background: var(--card-bg);
}

.featured-tag-chip:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.2);
  transform: translateY(-2px);
}

.tag-emoji {
  font-size: 1.1rem;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  text-transform: uppercase;
  animation: fadeInUp 0.4s ease backwards;
}

.wiki-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.wiki-category-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.5s ease backwards;
}

.wiki-category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2.5px;
  background: linear-gradient(90deg, transparent, var(--brand-color, var(--accent-cyan)), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.wiki-category-card:hover {
  border-color: var(--brand-color, var(--accent-cyan));
  transform: translateY(-4px);
  box-shadow: 0 14px 30px -8px rgba(0, 0, 0, 0.45), 0 0 20px rgba(6, 182, 212, 0.12);
}

.wiki-category-card:hover::before {
  opacity: 1;
}

.wiki-card-icon-wrap {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid var(--main-border-color);
  flex-shrink: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.brand-svg {
  width: 28px;
  height: 28px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.wiki-category-card:hover .wiki-card-icon-wrap {
  border-color: var(--brand-color, var(--accent-cyan));
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
  transform: scale(1.08) translateY(-2px);
}

.wiki-category-card:hover .brand-svg {
  transform: scale(1.15) rotate(3deg);
}

.wiki-card-content {
  flex-grow: 1;
  min-width: 0;
}

.wiki-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.wiki-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.wiki-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--heading-color);
  transition: color 0.2s ease;
}

.wiki-category-card:hover .wiki-card-title {
  color: var(--brand-color, var(--accent-cyan));
}

.wiki-badge {
  font-size: 0.65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  border: 1px solid;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.03);
}

.live-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% {
    opacity: 0.35;
    transform: scale(0.85);
  }
  50% {
    opacity: 1;
    transform: scale(1.25);
  }
}

.wiki-card-arrow {
  color: var(--text-muted-color);
  font-size: 1.1rem;
  transition: transform 0.25s ease, color 0.25s ease;
}

.wiki-category-card:hover .wiki-card-arrow {
  transform: translateX(5px);
  color: var(--brand-color, var(--accent-cyan));
}

.wiki-card-desc {
  font-size: 0.84rem;
  color: var(--text-muted-color);
  line-height: 1.55;
}

.tag-svg-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.tag-svg-wrap svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Wiki Article Reading View & Table of Contents
   ========================================================================== */
.wiki-article-view {
  animation: fadeInUp 0.4s ease backwards;
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted-color);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.article-breadcrumb a {
  color: var(--link-color);
}

.article-breadcrumb a:hover {
  color: var(--link-hover-color);
  text-decoration: underline;
}

.crumb-separator {
  color: #4B5563;
}

.breadcrumb-current {
  color: var(--heading-color);
  font-weight: 500;
}

.article-header {
  border-bottom: 1px solid var(--main-border-color);
  padding-bottom: 18px;
  margin-bottom: 24px;
}

.article-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--heading-color);
  line-height: 1.25;
  margin-bottom: 16px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-muted-color);
  font-family: var(--font-mono);
}

.article-cat-link {
  color: var(--accent-cyan);
  font-weight: 600;
}

.btn-copy-url {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-muted-color);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: var(--transition);
}

.btn-copy-url:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.edit-post-pill {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
  font-weight: 600;
}

.edit-post-pill:hover {
  border-color: var(--accent-emerald);
}

/* Wiki Table of Contents */
.wiki-toc-box {
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin: 24px 0 32px;
  border-left: 4px solid var(--accent-cyan);
}

.toc-header {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--heading-color);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toc-item {
  font-size: 0.9rem;
  color: var(--link-color);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
}

.toc-item:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.toc-subitem {
  padding-left: 18px;
  font-size: 0.84rem;
  color: var(--text-muted-color);
}

/* Callout Alert Styles in Content */
blockquote {
  border-left: 4px solid var(--accent-cyan);
  background: rgba(6, 182, 212, 0.05);
  padding: 14px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 20px 0;
  color: var(--text-color);
}

.article-body-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-color);
}

.article-body-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--heading-color);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--main-border-color);
}

.article-body-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--heading-color);
  margin: 28px 0 12px;
}

.article-body-content p {
  margin-bottom: 20px;
}

.article-body-content ul, .article-body-content ol {
  margin: 16px 0 20px 24px;
}

.article-body-content li {
  margin-bottom: 8px;
}

.article-pagination-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--main-border-color);
}

.nav-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.nav-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.prev-card {
  text-align: left;
}

.next-card {
  text-align: right;
}

.nav-direction {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--heading-color);
}

/* ==========================================================================
   Modern Micro-Animations & Glow Effects
   ========================================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 16px rgba(6, 182, 212, 0.25);
  }
  50% {
    box-shadow: 0 0 28px rgba(6, 182, 212, 0.55);
  }
}

.chirpy-card {
  animation: fadeInUp 0.45s ease backwards;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
}

.chirpy-card:hover {
  transform: translateY(-3px);
  border-color: rgba(6, 182, 212, 0.35);
  box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.45), 0 0 16px rgba(6, 182, 212, 0.08);
}

.avatar-wrapper {
  animation: pulseGlow 4s infinite ease-in-out;
}

/* Sidebar close button */
.sidebar-close-btn {
  display: none;
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--main-bg);
  border: 1px solid var(--sidebar-border);
  color: var(--text-muted-color);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 10;
}

.sidebar-close-btn:hover {
  color: var(--heading-color);
  border-color: var(--accent-cyan);
}

/* Active Nav Bar Glow */
.sidebar-nav-item.active a {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  border-left: 3px solid var(--accent-cyan);
  font-weight: 600;
  padding-left: 13px;
}

/* ==========================================================================
   Traversal & Footer
   ========================================================================== */
.traversal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--main-border-color);
  font-size: 0.9rem;
}

.traversal a {
  color: var(--link-color);
  font-weight: 600;
}

.traversal a:hover {
  color: var(--link-hover-color);
  text-decoration: underline;
}

.site-footer {
  border-top: 1px solid var(--main-border-color);
  padding: 24px 32px;
  font-size: 0.82rem;
  color: var(--text-muted-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  background: var(--main-bg);
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.site-footer strong {
  color: var(--heading-color);
}

.footer-left {
  font-weight: 400;
}

.footer-brand-link {
  color: var(--accent-cyan);
  font-weight: 600;
  transition: color 0.2s ease;
}

.footer-brand-link:hover {
  color: var(--accent-cyan-light);
  text-decoration: underline;
}

.footer-right {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted-color);
}

/* Mobile Backdrop Overlay */
#sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: var(--mask-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

#sidebar-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Responsive Breakpoints & Mobile Optimization
   ========================================================================== */
@media (max-width: 1200px) {
  #right-panel {
    display: none;
  }
}

@media (max-width: 850px) {
  #sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 100;
  }
  #sidebar.open {
    transform: translateX(0);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.7);
  }
  .sidebar-close-btn {
    display: flex;
  }
  #main-wrapper {
    margin-left: 0;
    width: 100%;
    min-width: 0;
  }
  #topbar {
    padding: 0 16px;
    height: 56px;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .breadcrumb-trail {
    display: none;
  }
  .topbar-mobile-brand {
    display: flex;
  }
  .topbar-search-wrap {
    display: none;
  }
  .mobile-search-trigger {
    display: flex;
  }
  .topbar-mode-btn {
    display: flex;
  }
  #content-container {
    padding: 20px 16px 40px;
  }
  .site-footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .wiki-category-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 500px) {
  .card-title {
    font-size: 1.18rem;
  }
  .page-title {
    font-size: 1.4rem;
  }
  .site-footer {
    padding: 18px 14px;
    font-size: 0.75rem;
  }
  .footer-right {
    font-size: 0.72rem;
  }
}

/* ==========================================================================
   WordPress-Style CMS Enhancements & Widgets
   ========================================================================== */

/* Reading Progress Bar */
.reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), #3B82F6, var(--accent-emerald));
  z-index: 99999;
  width: 0%;
  pointer-events: none;
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.6);
  transition: width 0.08s ease-out;
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  z-index: 999;
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.15);
  box-shadow: 0 6px 22px rgba(6, 182, 212, 0.35);
  transform: translateY(-3px);
}

/* Category & Tag Hero Banner */
.category-hero-banner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.4s ease backwards;
}

.category-hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--brand-color, var(--accent-cyan)), transparent);
}

.category-hero-icon-wrap {
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.category-hero-icon-wrap .brand-svg {
  width: 38px;
  height: 38px;
}

.category-hero-info {
  flex-grow: 1;
}

.category-hero-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.category-post-count-badge {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: var(--main-bg);
  color: var(--text-muted-color);
  border: 1px solid var(--main-border-color);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.category-hero-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--heading-color);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.category-hero-desc {
  font-size: 0.95rem;
  color: var(--text-muted-color);
  line-height: 1.6;
  margin: 0;
}

/* WordPress-Style Social Sharing Bar */
.article-share-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin: 36px 0 28px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

.share-label {
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--heading-color);
  letter-spacing: 0.05em;
}

.share-buttons-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-mono);
  border: 1px solid var(--main-border-color);
  background: var(--main-bg);
  color: var(--text-color);
  transition: all 0.2s ease;
}

.share-btn:hover {
  transform: translateY(-2px);
}

.share-twitter:hover {
  border-color: #1DA1F2;
  color: #1DA1F2;
  box-shadow: 0 4px 12px rgba(29, 161, 242, 0.2);
}

.share-linkedin:hover {
  border-color: #0A66C2;
  color: #0A66C2;
  box-shadow: 0 4px 12px rgba(10, 102, 194, 0.2);
}

.share-reddit:hover {
  border-color: #FF4500;
  color: #FF4500;
  box-shadow: 0 4px 12px rgba(255, 69, 0, 0.2);
}

.share-telegram:hover {
  border-color: #24A1DE;
  color: #24A1DE;
  box-shadow: 0 4px 12px rgba(36, 161, 222, 0.2);
}

/* WordPress-Style Author Bio Card */
.author-bio-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  margin: 32px 0;
  position: relative;
  overflow: hidden;
}

.author-bio-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent-cyan);
}

.author-avatar-wrap {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: rgba(6, 182, 212, 0.1);
  border: 2px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--accent-cyan);
  position: relative;
  overflow: visible;
  box-shadow: 0 0 16px rgba(6, 182, 212, 0.25);
}

.author-avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.author-status-pulse {
  position: absolute;
  bottom: 0px;
  right: 0px;
  width: 13px;
  height: 13px;
  background: #10B981;
  border-radius: 50%;
  border: 2px solid var(--card-bg);
  box-shadow: 0 0 8px #10B981;
}

.author-info-wrap {
  flex-grow: 1;
  min-width: 0;
}

.author-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.author-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.author-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--heading-color);
  margin: 0;
}

.author-badge {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-emerald);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.author-edit-shortcut-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.74rem;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s ease;
}

.author-edit-shortcut-btn:hover {
  background: rgba(6, 182, 212, 0.2);
  border-color: var(--accent-cyan);
  color: #FFFFFF;
}

.author-headline-sub {
  font-size: 0.86rem;
  color: var(--accent-cyan);
  font-weight: 600;
  font-family: var(--font-mono);
  margin: 2px 0 8px 0;
}

.author-bio-text {
  font-size: 0.88rem;
  color: var(--text-muted-color);
  line-height: 1.6;
  margin-bottom: 12px;
}

.author-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.author-social-channels {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.author-social-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.2s ease;
}

.author-social-pill:hover {
  background: rgba(6, 182, 212, 0.12);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-1px);
}

.author-explore-wrap {
  font-size: 0.82rem;
}

.author-more-link {
  color: var(--accent-cyan);
  font-weight: 600;
  font-family: var(--font-mono);
}

.author-more-link:hover {
  text-decoration: underline;
}

/* Lab Card Avatar in Right Sidebar */
.lab-avatar-badge .lab-avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.lab-quick-edit-btn {
  margin-left: auto;
  color: var(--text-muted-color);
  padding: 4px 6px;
  border-radius: 4px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
}

.lab-quick-edit-btn:hover {
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.15);
}

/* WordPress-Style Related Posts Section */
.related-posts-section {
  margin: 40px 0;
}

.related-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--main-border-color);
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-icon {
  font-size: 1.2rem;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--heading-color);
  margin: 0;
}

.view-category-all {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.view-category-all:hover {
  text-decoration: underline;
}

.related-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.related-post-card {
  display: flex;
  flex-direction: column;
  padding: 18px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.related-post-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
}

.related-post-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-muted-color);
  margin-bottom: 8px;
}

.related-cat-pill {
  color: var(--accent-cyan);
  font-weight: 600;
}

.related-post-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--heading-color);
  line-height: 1.4;
  margin-bottom: 8px;
}

.related-post-card:hover .related-post-title {
  color: var(--accent-cyan);
}

.related-post-excerpt {
  font-size: 0.8rem;
  color: var(--text-muted-color);
  line-height: 1.5;
  margin: 0;
}

.related-posts-banner {
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.related-posts-banner p {
  color: var(--text-muted-color);
  margin-bottom: 14px;
}

.btn-explore-kb {
  display: inline-block;
  padding: 8px 18px;
  background: var(--card-bg);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.btn-explore-kb:hover {
  background: var(--accent-cyan);
  color: #000;
}

/* ==========================================================================
   Multi-Theme Accent Presets
   ========================================================================== */
[data-accent="cyan"] {
  --accent-cyan: #06B6D4;
  --accent-cyan-light: #22D3EE;
}

[data-accent="emerald"] {
  --accent-cyan: #10B981;
  --accent-cyan-light: #34D399;
}

[data-accent="violet"] {
  --accent-cyan: #8B5CF6;
  --accent-cyan-light: #A78BFA;
}

[data-accent="amber"] {
  --accent-cyan: #F59E0B;
  --accent-cyan-light: #FBBF24;
}

[data-accent="rose"] {
  --accent-cyan: #F43F5E;
  --accent-cyan-light: #FB7185;
}

/* ==========================================================================
   Sidebar Typewriter & Accent Dots
   ========================================================================== */
.typing-cursor {
  display: inline-block;
  color: var(--accent-cyan);
  font-weight: 800;
  margin-left: 2px;
  animation: blinkCursor 0.8s infinite;
}

@keyframes blinkCursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.theme-accent-picker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  margin-bottom: 12px;
  background: var(--main-bg);
  border: 1px solid var(--sidebar-border);
  border-radius: var(--radius-sm);
}

.accent-picker-label {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-muted-color);
  letter-spacing: 0.08em;
}

.accent-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.accent-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-pick);
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.accent-dot:hover {
  transform: scale(1.25);
}

.accent-dot.active {
  border-color: #FFFFFF;
  box-shadow: 0 0 10px var(--accent-pick);
  transform: scale(1.15);
}

.nav-count-badge {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 700;
  background: var(--accent-cyan);
  color: #000;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  margin-left: auto;
  display: none;
}

/* ==========================================================================
   Spotlight Command Palette Modal (Cmd+K)
   ========================================================================== */
.spotlight-modal {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.2s ease;
}

.spotlight-modal.active {
  opacity: 1;
  visibility: visible;
}

.spotlight-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 12, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.spotlight-container {
  position: relative;
  width: 90%;
  max-width: 640px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 30px rgba(6, 182, 212, 0.15);
  overflow: hidden;
  animation: spotlightPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes spotlightPop {
  from {
    transform: scale(0.96) translateY(-10px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.spotlight-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--main-border-color);
  background: var(--main-bg);
}

.spotlight-prompt {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

#spotlight-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: var(--heading-color);
  font-size: 1.1rem;
  font-family: var(--font-sans);
  outline: none;
}

#spotlight-input::placeholder {
  color: var(--text-muted-color);
}

.spotlight-esc-badge {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  padding: 3px 6px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted-color);
}

.spotlight-results {
  max-height: 380px;
  overflow-y: auto;
  padding: 8px;
}

.spotlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  color: var(--text-color);
}

.spotlight-item:hover, .spotlight-item.active {
  background: rgba(6, 182, 212, 0.12);
  color: var(--heading-color);
}

.spotlight-item-icon {
  font-size: 1.2rem;
  width: 28px;
  text-align: center;
}

.spotlight-item-info {
  flex-grow: 1;
  min-width: 0;
}

.spotlight-item-title {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.spotlight-item-type {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted-color);
}

.spotlight-item-key {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted-color);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.spotlight-item.active .spotlight-item-key {
  opacity: 1;
  color: var(--accent-cyan);
}

.spotlight-empty {
  padding: 32px 20px;
  text-align: center;
  color: var(--text-muted-color);
  font-size: 0.9rem;
}

.spotlight-empty kbd {
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.spotlight-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: var(--main-bg);
  border-top: 1px solid var(--main-border-color);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted-color);
}

.spotlight-hint kbd {
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--heading-color);
}

/* ==========================================================================
   Saved Runbooks Slide-Over Drawer
   ========================================================================== */
.saved-drawer {
  position: fixed;
  inset: 0;
  z-index: 999998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s ease;
}

.saved-drawer.active {
  opacity: 1;
  visibility: visible;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}

.drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 90%;
  max-width: 420px;
  background: var(--card-bg);
  border-left: 1px solid var(--main-border-color);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.saved-drawer.active .drawer-panel {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--main-border-color);
  background: var(--main-bg);
}

.drawer-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.drawer-icon {
  font-size: 1.3rem;
}

.drawer-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--heading-color);
  margin: 0;
}

.drawer-close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted-color);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}

.drawer-close-btn:hover {
  color: var(--heading-color);
}

.drawer-body {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.saved-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease;
}

.saved-item-card:hover {
  border-color: var(--accent-cyan);
}

.saved-item-info {
  flex-grow: 1;
  min-width: 0;
}

.saved-item-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--heading-color);
  display: block;
  margin-bottom: 4px;
  transition: color 0.2s ease;
}

.saved-item-title:hover {
  color: var(--accent-cyan);
}

.saved-item-date {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-muted-color);
}

.btn-remove-saved {
  background: transparent;
  border: 1px solid var(--main-border-color);
  color: var(--text-muted-color);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.btn-remove-saved:hover {
  border-color: var(--accent-rose);
  color: var(--accent-rose);
  background: rgba(244, 63, 94, 0.1);
}

.empty-saved-box {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted-color);
}

.empty-saved-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 12px;
}

.empty-saved-box h4 {
  font-size: 1.1rem;
  color: var(--heading-color);
  margin-bottom: 6px;
}

.empty-saved-box p {
  font-size: 0.85rem;
  line-height: 1.5;
}

.drawer-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--main-border-color);
  background: var(--main-bg);
  display: flex;
  justify-content: flex-end;
}

.btn-clear-saved {
  background: transparent;
  border: 1px solid var(--main-border-color);
  color: var(--text-muted-color);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-clear-saved:hover {
  border-color: var(--accent-rose);
  color: var(--accent-rose);
}

/* ==========================================================================
   Homepage Stream Filter Bar & Card Bookmarking
   ========================================================================== */
.stream-filter-container {
  position: relative;
  margin-bottom: 24px;
}

.stream-scroll-fade {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 28px;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.stream-scroll-fade.fade-left {
  left: 0;
  background: linear-gradient(90deg, var(--main-bg), transparent);
}

.stream-scroll-fade.fade-right {
  right: 0;
  background: linear-gradient(-90deg, var(--main-bg), transparent);
}

.stream-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.stream-filter-bar::-webkit-scrollbar {
  display: none;
}

.stream-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  color: var(--text-muted-color);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  touch-action: manipulation;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.stream-filter-chip:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.08);
  transform: translateY(-1px);
}

.stream-filter-chip.active {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.92), rgba(var(--accent-rgb), 1));
  color: #000000;
  border-color: var(--accent-color);
  box-shadow: 0 4px 16px rgba(var(--accent-rgb), 0.35);
}

.stream-filter-chip .chip-svg-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.stream-filter-chip .chip-svg-wrap .brand-svg {
  width: 14px;
  height: 14px;
  display: inline-block;
  vertical-align: middle;
}

/* Stream Live Status Bar */
.stream-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding: 8px 16px;
  background: rgba(var(--accent-rgb), 0.05);
  border: 1px solid rgba(var(--accent-rgb), 0.16);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-muted-color);
  transition: var(--transition);
}

.stream-status-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stream-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-color);
  animation: pulseDot 2s infinite ease-in-out;
}

.stream-status-left strong {
  color: var(--text-color);
}

.stream-status-right {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.stream-status-right strong {
  color: var(--accent-color);
}

.btn-reset-chip {
  background: rgba(var(--accent-rgb), 0.15);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
  color: var(--accent-color);
  padding: 2px 9px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-reset-chip:hover {
  background: var(--accent-color);
  color: #000000;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.3);
}

/* Empty Stream Filter State Card */
.filter-empty-state {
  text-align: center;
  padding: 42px 24px;
  margin-bottom: 24px;
  background: rgba(var(--accent-rgb), 0.03);
  border: 1px dashed rgba(var(--accent-rgb), 0.3);
}

.empty-filter-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.empty-filter-icon {
  font-size: 2.2rem;
  margin-bottom: 4px;
}

.filter-empty-state h3 {
  font-size: 1.15rem;
  color: var(--heading-color);
  margin: 0;
}

.filter-empty-state p {
  font-size: 0.88rem;
  color: var(--text-muted-color);
  max-width: 440px;
  margin: 0;
}

.btn-clear-stream-filter {
  margin-top: 10px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--card-bg);
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-clear-stream-filter:hover {
  background: var(--accent-color);
  color: #000000;
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.35);
}

/* Domain Badge & SVG Icons */
.domain-chip .badge-icon .brand-svg,
.meta-cat-svg .brand-svg {
  width: 15px;
  height: 15px;
  display: inline-block;
  vertical-align: -2px;
}

/* Sidebar navigation icon SVGs */
.sidebar-nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.sidebar-nav-icon svg {
  display: block;
  stroke: var(--text-muted-color);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), stroke 0.2s ease;
}

.sidebar-nav-item:hover .sidebar-nav-icon svg,
.sidebar-nav-item.active .sidebar-nav-icon svg {
  stroke: var(--accent-color);
  transform: scale(1.12);
}

/* Code copy button copied state & SVG */
.code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--code-border);
  color: var(--text-muted-color);
  border-radius: var(--radius-sm);
  padding: 3px 9px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s ease;
}

.code-copy-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.08);
}

.code-copy-btn.copied {
  border-color: var(--accent-emerald) !important;
  color: var(--accent-emerald) !important;
  background: rgba(16, 185, 129, 0.12) !important;
}

.copy-svg {
  display: inline-block;
  vertical-align: middle;
}

/* ==========================================================================
   2026 Interactive Spotlight Post Cards (Linear/Vercel Aesthetic)
   ========================================================================== */
.chirpy-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 20px;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.25s ease,
              box-shadow 0.25s ease,
              background-color 0.25s ease;
}

.chirpy-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--accent-rgb), 0.45);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25), 0 0 20px rgba(var(--accent-rgb), 0.1);
}

.card-glow-layer {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(400px circle at var(--mouse-x, -500px) var(--mouse-y, -500px), rgba(var(--accent-rgb), 0.14), transparent 45%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: 1;
}

.chirpy-card:hover .card-glow-layer {
  opacity: 1;
}

.card-top-meta {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card-domain-badge {
  display: flex;
  align-items: center;
  gap: 8px;
}

.domain-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  color: var(--accent-color);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
}

.domain-chip:hover {
  background: rgba(var(--accent-rgb), 0.2);
  border-color: var(--accent-color);
  transform: translateY(-1px);
}

.pinned-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-color);
}

.card-quick-actions {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-reading-estimate {
  font-size: 0.76rem;
  color: var(--text-muted-color);
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  gap: 4px;
}

.card-bookmark-btn {
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.82rem;
  transition: var(--transition);
}

.card-bookmark-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: scale(1.08);
}

.card-bookmark-btn.saved {
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.15);
  border-color: var(--accent-color);
}

.card-title {
  position: relative;
  z-index: 2;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.card-title a {
  color: var(--heading-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

.card-title a:hover {
  color: var(--accent-color);
}

.card-excerpt {
  position: relative;
  z-index: 2;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-muted-color);
  margin-bottom: 16px;
}

.card-meta-row {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--main-border-color);
  font-size: 0.8rem;
  color: var(--text-muted-color);
}

.meta-date {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.card-tags-pills {
  display: flex;
  gap: 6px;
}

.card-tags-pills a {
  color: var(--text-muted-color);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  transition: var(--transition);
}

.card-tags-pills a:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.card-arrow-read {
  font-size: 1.1rem;
  color: var(--text-muted-color);
  transition: transform 0.2s ease, color 0.2s ease;
}

.chirpy-card:hover .card-arrow-read {
  color: var(--accent-color);
  transform: translateX(4px);
}

/* ==========================================================================
   Engineering Lab Profile Card (Right Panel Widget)
   ========================================================================== */
.engineering-lab-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
  margin-bottom: 24px;
}

.engineering-lab-card:hover {
  border-color: rgba(var(--accent-rgb), 0.45);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.lab-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.lab-avatar-badge {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.2), rgba(var(--accent-rgb), 0.05));
  border: 1px solid rgba(var(--accent-rgb), 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  color: var(--accent-color);
}

.lab-status-dot {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #10B981;
  border: 2px solid var(--card-bg);
  box-shadow: 0 0 6px #10B981;
  animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.15); }
}

.lab-team-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--heading-color);
}

.lab-team-sub {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--accent-color);
}

.lab-card-bio {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-muted-color);
  margin-bottom: 14px;
}

.lab-card-metrics {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.metric-pill {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  padding: 6px 4px;
}

.metric-val {
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--heading-color);
  font-family: var(--font-mono);
}

.metric-name {
  font-size: 0.68rem;
  color: var(--text-muted-color);
  text-transform: uppercase;
}

.lab-card-actions {
  display: flex;
  gap: 8px;
}

.btn-lab-action {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
}

.btn-write-action {
  background: var(--accent-color);
  color: #000000;
}

.btn-write-action:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.35);
}

.btn-feed-action {
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  color: var(--text-color);
}

.btn-feed-action:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-1px);
}

/* ==========================================================================
   Terminal-Style Code Window Bar
   ========================================================================== */
.code-window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--code-header-bg);
  border: 1px solid var(--code-border);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: 8px 16px;
  margin-top: 24px;
}

.code-window-bar + pre {
  margin-top: 0 !important;
  border-top: none !important;
  border-radius: 0 0 var(--radius-md) var(--radius-md) !important;
}

.code-mac-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.code-mac-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #FF5F56; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #27C93F; }

.code-lang-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted-color);
  letter-spacing: 0.08em;
}

.code-copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--code-border);
  color: var(--text-muted-color);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.2s ease;
}

.code-copy-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
}

/* ==========================================================================
   Article Header, Action Toolbar & Zen Focus Mode
   ========================================================================== */
.article-header {
  margin-bottom: 28px;
}

.article-primary-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.article-action-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  color: var(--text-color);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  touch-action: manipulation;
}

.tool-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-1px);
}

.tool-group {
  display: flex;
  align-items: center;
  background: var(--main-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  gap: 6px;
}

.tool-btn-inline {
  background: none;
  border: none;
  color: var(--text-muted-color);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 2px 4px;
}

.tool-btn-inline:hover {
  color: var(--accent-color);
}

.tool-sep {
  color: var(--main-border-color);
  font-size: 0.75rem;
}

.zen-exit-floating-bar {
  display: none;
  position: fixed;
  top: 18px;
  right: 24px;
  z-index: 999999;
  background: var(--card-bg);
  border: 1px solid var(--accent-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--heading-color);
}

body.zen-reading-mode .zen-exit-floating-bar {
  display: flex !important;
}

.btn-exit-zen {
  background: var(--accent-color);
  color: #000000;
  border: none;
  border-radius: var(--radius-full);
  padding: 4px 10px;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-exit-zen:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

/* Zen Focus Mode */
body.zen-reading-mode #sidebar,
body.zen-reading-mode #right-panel,
body.zen-reading-mode #topbar,
body.zen-reading-mode .site-footer {
  display: none !important;
}

body.zen-reading-mode #main-wrapper {
  margin-left: 0 !important;
  width: 100% !important;
}

body.zen-reading-mode #content-container {
  max-width: 820px !important;
  margin: 0 auto !important;
  padding: 40px 20px 80px !important;
}

body.zen-reading-mode #toggle-zen-reading {
  background: var(--accent-color) !important;
  color: #000000 !important;
  font-weight: 700 !important;
  border-color: var(--accent-color) !important;
}

/* ==========================================================================
   Responsive Markdown Tables (Compatibility & Elegant Styling)
   ========================================================================== */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 28px 0;
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
  display: block;
  -webkit-overflow-scrolling: touch;
  background: var(--card-bg);
}

thead, tbody, tr {
  min-width: 100%;
}

th {
  background: var(--main-bg);
  color: var(--heading-color);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 12px 18px;
  border-bottom: 2px solid var(--main-border-color);
  text-align: left;
  white-space: nowrap;
}

td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--main-border-color);
  color: var(--text-color);
  font-size: 0.88rem;
  line-height: 1.5;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: background-color 0.15s ease;
}

tbody tr:hover td {
  background: rgba(6, 182, 212, 0.04);
}

/* ==========================================================================
   Staggered Animations & Micro-Interactions
   ========================================================================== */
.post-list .chirpy-card:nth-child(1) { animation-delay: 0.04s; }
.post-list .chirpy-card:nth-child(2) { animation-delay: 0.08s; }
.post-list .chirpy-card:nth-child(3) { animation-delay: 0.12s; }
.post-list .chirpy-card:nth-child(4) { animation-delay: 0.16s; }
.post-list .chirpy-card:nth-child(5) { animation-delay: 0.20s; }
.post-list .chirpy-card:nth-child(6) { animation-delay: 0.24s; }
.post-list .chirpy-card:nth-child(7) { animation-delay: 0.28s; }
.post-list .chirpy-card:nth-child(8) { animation-delay: 0.32s; }

.wiki-category-grid .wiki-category-card:nth-child(1) { animation-delay: 0.03s; }
.wiki-category-grid .wiki-category-card:nth-child(2) { animation-delay: 0.06s; }
.wiki-category-grid .wiki-category-card:nth-child(3) { animation-delay: 0.09s; }
.wiki-category-grid .wiki-category-card:nth-child(4) { animation-delay: 0.12s; }
.wiki-category-grid .wiki-category-card:nth-child(5) { animation-delay: 0.15s; }
.wiki-category-grid .wiki-category-card:nth-child(6) { animation-delay: 0.18s; }
.wiki-category-grid .wiki-category-card:nth-child(7) { animation-delay: 0.21s; }
.wiki-category-grid .wiki-category-card:nth-child(8) { animation-delay: 0.24s; }

/* Interactive button feedback */
button, .btn-back-home, .social-btn, .mode-toggle-btn, .stream-filter-chip {
  touch-action: manipulation;
}

button:active, .stream-filter-chip:active {
  transform: scale(0.97);
}

/* ==========================================================================
   Comprehensive Mobile & Tablet Compatibility Rules
   ========================================================================== */
@media (max-width: 768px) {
  .category-hero-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    gap: 14px;
  }

  .category-hero-icon-wrap {
    width: 52px;
    height: 52px;
  }

  .category-hero-title {
    font-size: 1.5rem;
  }

  .article-title {
    font-size: 1.7rem;
    line-height: 1.3;
  }

  .article-meta-bar {
    gap: 8px;
  }

  .author-bio-card {
    flex-direction: column;
    padding: 18px;
    gap: 14px;
  }

  .author-avatar-wrap {
    width: 48px;
    height: 48px;
    font-size: 1rem;
  }

  .article-pagination-nav {
    grid-template-columns: 1fr;
  }

  .next-card {
    text-align: left;
  }

  .spotlight-container {
    width: 95%;
    max-height: 80vh;
  }

  .saved-drawer .drawer-panel {
    width: 100%;
    max-width: 100%;
  }

  .article-share-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .breadcrumb-trail, .article-breadcrumb {
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .meta-pill {
    font-size: 0.72rem;
    padding: 3px 8px;
  }

  .card-meta-row {
    flex-wrap: wrap;
    gap: 8px;
  }

  .stream-filter-bar {
    gap: 6px;
  }

  .stream-filter-chip {
    padding: 5px 11px;
    font-size: 0.75rem;
  }

  .code-window-bar {
    padding: 6px 12px;
  }

  .code-mac-dots {
    gap: 4px;
  }

  .code-mac-dots .dot {
    width: 8px;
    height: 8px;
  }
}

/* ==========================================================================
   Modern 2026 Interactive Suite: Canvas, 3D Tilt, Radar, Toasts & Terminal Sim
   ========================================================================== */

/* 1. Cyber Grid Particle Canvas Background */
.cyber-grid-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  transition: opacity 0.5s ease;
}

[data-mode="light"] .cyber-grid-canvas {
  opacity: 0.15;
}

/* 2. 3D Card Tilt, Specular Glare & Shimmer Borders */
.chirpy-card,
.engineering-lab-card,
.wiki-category-card {
  perspective: 1000px;
  transform: perspective(1000px) rotateX(var(--card-tilt-x, 0deg)) rotateY(var(--card-tilt-y, 0deg)) translateZ(0);
  transition: transform 0.15s cubic-bezier(0.2, 0.8, 0.4, 1), border-color 0.25s ease, box-shadow 0.25s ease;
  will-change: transform;
}

.chirpy-card::before,
.engineering-lab-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(var(--accent-rgb), 0.14),
    transparent 65%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.chirpy-card:hover::before,
.engineering-lab-card:hover::before {
  opacity: 1;
}

.chirpy-card:hover {
  border-color: rgba(var(--accent-rgb), 0.5) !important;
  box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.5), 0 0 20px rgba(var(--accent-rgb), 0.18) !important;
}

/* 3. Live Telemetry Strip & Radar Beacon */
.lab-telemetry-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 14px;
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
}

[data-mode="light"] .lab-telemetry-strip {
  background: rgba(0, 0, 0, 0.04);
}

.lab-telemetry-strip:hover {
  border-color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.06);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.15);
}

.telemetry-radar-beacon {
  position: relative;
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.radar-core-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px #10B981;
}

.radar-pulse-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1.5px solid #10B981;
  opacity: 0.8;
  animation: radarRipple 2s cubic-bezier(0.2, 0.8, 0.4, 1) infinite;
}

@keyframes radarRipple {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.telemetry-data-feed {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted-color);
  letter-spacing: 0.03em;
}

.telemetry-data-feed strong {
  color: var(--heading-color);
  font-weight: 700;
}

#telemetry-status-val {
  color: #10B981;
}

#telemetry-ping-val {
  color: var(--accent-color);
}

.telemetry-sep {
  opacity: 0.35;
}

/* 4. Terminal Simulation Drawer in Code Blocks */
.code-sim-btn {
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  color: var(--accent-color);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
  margin-right: 6px;
}

.code-sim-btn:hover {
  background: var(--accent-color);
  color: #000000;
  border-color: var(--accent-color);
  transform: translateY(-1px);
  box-shadow: 0 2px 10px rgba(var(--accent-rgb), 0.3);
}

.code-actions-group {
  display: flex;
  align-items: center;
}

.terminal-sim-drawer {
  display: none;
  background: #0B0C0E;
  border: 1px solid var(--accent-color);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  margin-top: -1px;
  margin-bottom: 24px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 16px rgba(var(--accent-rgb), 0.15);
  animation: simDrawerSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.terminal-sim-drawer.active {
  display: block;
}

@keyframes simDrawerSlide {
  from { opacity: 0; transform: translateY(-8px); max-height: 0; }
  to { opacity: 1; transform: translateY(0); max-height: 400px; }
}

.sim-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #141519;
  padding: 6px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #8E96A0;
}

.sim-drawer-dots {
  display: flex;
  gap: 5px;
}

.sim-close-btn {
  background: none;
  border: none;
  color: #8E96A0;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.sim-close-btn:hover {
  color: #FFFFFF;
}

.sim-console-output {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: #D1D5DB;
  max-height: 240px;
  overflow-y: auto;
}

.sim-line-prompt {
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 6px;
}

.sim-line-stdout {
  color: #9CA3AF;
  white-space: pre-wrap;
  margin-bottom: 8px;
}

.sim-line-success {
  color: #10B981;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sim-cursor {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--accent-color);
  vertical-align: middle;
  animation: blinkCursor 0.9s infinite;
}

/* 5. Glassmorphic Toast Notifications Container */
.cyber-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
  max-width: 380px;
  width: calc(100vw - 48px);
}

.cyber-toast {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: rgba(22, 23, 28, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(var(--accent-rgb), 0.2);
  color: #FFFFFF;
  pointer-events: auto;
  overflow: hidden;
  transform: translateY(24px) scale(0.95);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
}

[data-mode="light"] .cyber-toast {
  background: rgba(255, 255, 255, 0.95);
  color: #111827;
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15), 0 0 20px rgba(var(--accent-rgb), 0.12);
}

.cyber-toast.active {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.cyber-toast.dismissed {
  transform: translateY(12px) scale(0.92);
  opacity: 0;
}

.toast-glow-edge {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.toast-icon {
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-weight: 700;
  font-size: 0.88rem;
  line-height: 1.3;
  margin-bottom: 2px;
  color: var(--heading-color);
}

.toast-msg {
  font-size: 0.78rem;
  color: var(--text-muted-color);
  line-height: 1.4;
}

.toast-close-btn {
  background: none;
  border: none;
  color: var(--text-muted-color);
  font-size: 1.2rem;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  margin-top: -2px;
  margin-right: -4px;
}

.toast-close-btn:hover {
  color: var(--heading-color);
}

.toast-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2.5px;
  width: 100%;
  background: var(--accent-color);
  animation: toastDrain linear forwards;
}

@keyframes toastDrain {
  from { width: 100%; }
  to { width: 0%; }
}

/* 6. Scroll-Driven Reveal Animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(22px) scale(0.985);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal.reveal-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* 7. Category Icons Animated Floating & Shimmer Effects */
.card-badge.domain-chip {
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.4, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.card-badge.domain-chip:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.25);
}

.card-badge.domain-chip:hover .badge-icon {
  animation: badgeBounce 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes badgeBounce {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-4px) scale(1.25); }
}

/* 8. Magnetic Button Hover Feel */
.magnetic-btn {
  transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.4, 1);
  will-change: transform;
}

/* Shimmer Border Light for Pinned / Featured Items */
.chirpy-card.pinned {
  border-color: rgba(var(--accent-rgb), 0.45);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25), 0 0 15px rgba(var(--accent-rgb), 0.12);
}

/* ==========================================================================
   Article Helpful Feedback & Reaction Widget (view.twig)
   ========================================================================== */
.article-feedback-widget {
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  margin-top: 1.8rem;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
}

.article-feedback-widget:hover {
  border-color: rgba(var(--accent-rgb), 0.35);
}

.feedback-question {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.feedback-icon {
  color: var(--accent-color);
  padding-top: 0.1rem;
}

.feedback-text strong {
  display: block;
  font-size: 0.95rem;
  color: var(--heading-color);
  margin-bottom: 0.15rem;
}

.feedback-text span {
  font-size: 0.8rem;
  color: var(--text-muted-color);
}

.feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-feedback {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.95rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  color: var(--text-color);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-feedback:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.feedback-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text-muted-color);
}

.btn-feedback-yes.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: #10B981;
  color: #10B981;
}

.btn-feedback-yes.active .feedback-badge {
  background: #10B981;
  color: #000000;
  font-weight: 700;
}

.btn-feedback-no.active {
  background: rgba(244, 63, 94, 0.15);
  border-color: #F43F5E;
  color: #F43F5E;
}

.btn-feedback-no.active .feedback-badge {
  background: #F43F5E;
  color: #FFFFFF;
}

.feedback-response-msg {
  font-size: 0.8rem;
  color: #10B981;
  font-weight: 600;
  padding-top: 0.3rem;
  animation: fadeIn 0.3s ease;
}

/* ==========================================================================
   Saved Runbooks Drawer Markdown Export Button
   ========================================================================== */
.btn-export-saved {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
  border-radius: var(--radius-sm);
  color: var(--accent-color);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

/* ==========================================================================
   Modern Security Center & Authentication Cards (Login, Reset, Profile)
   ========================================================================== */

/* Full Auth Centering Viewports */
body.route_login #right-panel,
body.route_lost_password #right-panel,
body.route_register #right-panel,
body.route_reset_password #right-panel {
  display: none !important;
}

body.route_login #content-container,
body.route_lost_password #content-container,
body.route_register #content-container,
body.route_reset_password #content-container {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  min-height: calc(85vh - var(--topbar-height, 64px));
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.auth-page-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem 0;
}

.auth-card-container {
  width: 100%;
  max-width: 440px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2.25rem;
  box-shadow: 0 20px 48px -10px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(var(--accent-rgb), 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  animation: authCardEnter 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes authCardEnter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.auth-card-container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-purple), var(--accent-cyan));
}

.auth-card-container.wide {
  max-width: 620px;
}

.auth-card-header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.auth-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  color: var(--accent-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.25);
}

.auth-card-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--heading-color);
  letter-spacing: -0.02em;
  margin: 0 0 0.4rem 0;
}

.auth-card-subtitle {
  font-size: 0.84rem;
  color: var(--text-muted-color);
  line-height: 1.5;
  margin: 0;
}

.auth-card-form {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.auth-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  width: 100%;
}

.auth-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.auth-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.auth-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted-color);
}

.auth-forgot-link {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.auth-forgot-link:hover {
  text-decoration: underline;
}

.auth-input-wrap {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
}

.auth-input-icon {
  position: absolute;
  left: 12px;
  color: var(--text-muted-color);
  pointer-events: none;
  transition: var(--transition);
}

.auth-input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px 10px 38px;
  color: var(--heading-color);
  font-family: inherit;
  font-size: 0.92rem;
  transition: var(--transition);
}

.auth-input:focus {
  border-color: var(--accent-color);
  background: rgba(0, 0, 0, 0.4);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.2);
  outline: none;
}

.auth-input:focus + .auth-input-icon,
.auth-input-wrap:focus-within .auth-input-icon {
  color: var(--accent-color);
}

.auth-section-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--heading-color);
  border-bottom: 1px solid var(--main-border-color);
  padding-bottom: 0.4rem;
  margin-top: 0.5rem;
}

.auth-section-sub {
  font-size: 0.75rem;
  font-weight: normal;
  color: var(--text-muted-color);
}

.auth-card-actions {
  margin-top: 0.5rem;
}

.auth-submit-btn {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-color), #0284C7);
  color: #000000;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 11px 20px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.35);
  box-sizing: border-box;
}

.auth-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.5);
}

.auth-card-footer {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--main-border-color);
  text-align: center;
}

.auth-security-notice {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  color: var(--text-muted-color);
  font-family: var(--font-mono);
}

.auth-back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted-color);
  text-decoration: none;
  transition: var(--transition);
}

.auth-back-link:hover {
  color: var(--accent-color);
}

/* Standalone Fallback Support */
.standalone {
  box-sizing: border-box;
}

.standalone h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--heading-color);
  margin-bottom: 1.25rem;
}

/* Standalone raw forms styling fallback */
div.standalone:not(.auth-card-container) {
  max-width: 440px;
  margin: 2.5rem auto;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

div.standalone:not(.auth-card-container) label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted-color);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
  margin-top: 0.8rem;
}

div.standalone:not(.auth-card-container) input[type="text"],
div.standalone:not(.auth-card-container) input[type="password"],
div.standalone:not(.auth-card-container) input[type="email"] {
  width: 100%;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--main-border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--heading-color);
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
}

div.standalone:not(.auth-card-container) button[type="submit"] {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-color), #0284C7);
  color: #000000;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  margin-top: 1rem;
}

/* Responsive Overrides for Auth */
@media (max-width: 600px) {
  .auth-card-container {
    padding: 1.5rem 1.25rem;
    margin: 0 8px;
    border-radius: var(--radius-md);
  }
  .auth-form-row {
    grid-template-columns: 1fr;
  }
  .auth-input {
    font-size: 16px; /* Prevents auto-zoom on mobile */
  }
}