/* ============================================================
   AWESOME SYSADMIN — styles.css
   Cyber DevOps Playground — Dark/Light Theme
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --bg: #0a0e1a;
  --bg-2: #0d1220;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --border-glow: rgba(100,200,255,0.3);
  --text: #e2e8f0;
  --text-muted: #8899aa;
  --text-dim: #556070;
  --accent: #00d4ff;
  --accent-2: #7c3aed;
  --accent-3: #06ffa5;
  --glow: rgba(0,212,255,0.15);
  --glow-2: rgba(124,58,237,0.15);
  --topbar-h: 60px;
  --sidebar-w: 280px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px var(--glow);
  --transition: 0.2s ease;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme="light"] {
  --bg: #f0f4f8;
  --bg-2: #e8edf5;
  --bg-card: rgba(255,255,255,0.8);
  --bg-card-hover: rgba(255,255,255,0.95);
  --border: rgba(0,0,0,0.08);
  --border-glow: rgba(0,100,200,0.3);
  --text: #1a2333;
  --text-muted: #5a6a7a;
  --text-dim: #8899aa;
  --accent: #0066cc;
  --accent-2: #6d28d9;
  --accent-3: #059669;
  --glow: rgba(0,102,204,0.1);
  --glow-2: rgba(109,40,217,0.1);
  --shadow: 0 4px 24px rgba(0,0,0,0.1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

.sr-only {
  position: absolute; width:1px; height:1px;
  padding:0; margin:-1px; overflow:hidden;
  clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

/* ---------- Scroll Progress ---------- */
#scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 9999;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  transition: width 0.1s linear;
  box-shadow: 0 0 8px var(--accent);
}

/* ---------- Background Effects ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  transition: opacity var(--transition);
}
[data-theme="light"] .bg-grid {
  background-image:
    linear-gradient(rgba(0,100,200,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,100,200,0.05) 1px, transparent 1px);
}

.bg-glow {
  position: fixed; z-index: 0; pointer-events: none;
  border-radius: 50%; filter: blur(80px); opacity: 0.4;
}
.bg-glow-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,212,255,0.2), transparent 70%);
  top: -200px; left: -200px;
  animation: glow-drift-1 20s ease-in-out infinite alternate;
}
.bg-glow-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.2), transparent 70%);
  bottom: -200px; right: -200px;
  animation: glow-drift-2 25s ease-in-out infinite alternate;
}

@keyframes glow-drift-1 { from { transform: translate(0,0); } to { transform: translate(100px,80px); } }
@keyframes glow-drift-2 { from { transform: translate(0,0); } to { transform: translate(-80px,-60px); } }

#particles-canvas {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0.5;
}
[data-theme="light"] #particles-canvas { opacity: 0.2; }

/* ---------- Topbar ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--topbar-h);
  background: rgba(10,14,26,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 20px rgba(0,0,0,0.3);
  transition: background var(--transition);
}
[data-theme="light"] .topbar {
  background: rgba(240,244,248,0.9);
  box-shadow: 0 1px 20px rgba(0,0,0,0.1);
}

.topbar-inner {
  display: flex; align-items: center; gap: 12px;
  height: 100%; max-width: 1600px; margin: 0 auto; padding: 0 16px;
}

.topbar-left { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.topbar-center { flex: 1; max-width: 480px; margin: 0 auto; }
.topbar-right { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

/* Logo */
.logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 1.1rem; color: var(--text);
  text-decoration: none; letter-spacing: -0.02em;
}
.logo:hover { text-decoration: none; }
.logo-icon { font-size: 1.3rem; }
.logo-accent { color: var(--accent); }

/* Search */
.search-wrap {
  position: relative; display: flex; align-items: center;
}
.search-icon { position: absolute; left: 12px; font-size: 14px; z-index: 1; pointer-events: none; }
.search-input {
  width: 100%; padding: 8px 80px 8px 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text); font-family: var(--font); font-size: 0.9rem;
  transition: all var(--transition);
  outline: none;
}
.search-input:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--glow);
}
.search-input::placeholder { color: var(--text-dim); }
.search-shortcut {
  position: absolute; right: 10px;
  font-size: 0.7rem; color: var(--text-dim);
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 2px 6px; font-family: var(--font-mono);
  pointer-events: none;
}

/* Icon buttons */
.icon-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 8px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text); cursor: pointer; font-size: 16px;
  transition: all var(--transition);
}
.icon-btn:hover { background: var(--bg-card-hover); border-color: var(--accent); color: var(--accent); }
.icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.icon-btn[aria-pressed="true"] { background: var(--glow); border-color: var(--accent); color: var(--accent); }
.github-btn { border-color: transparent; }

/* Hamburger */
.hamburger {
  display: block; width: 18px; height: 2px;
  background: var(--text); border-radius: 2px;
  position: relative;
}
.hamburger::before, .hamburger::after {
  content: ''; position: absolute; left: 0;
  width: 18px; height: 2px; background: var(--text); border-radius: 2px;
}
.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

/* ---------- Layout ---------- */
.app-layout {
  display: flex; min-height: calc(100vh - var(--topbar-h));
  margin-top: var(--topbar-h);
  position: relative; z-index: 1;
}

/* ---------- Sidebar ---------- */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  position: sticky; top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto; overflow-x: hidden;
  background: rgba(10,14,26,0.6);
  backdrop-filter: blur(8px);
  border-right: 1px solid var(--border);
  transition: transform 0.3s ease, background var(--transition);
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
  z-index: 100;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

[data-theme="light"] .sidebar { background: rgba(240,244,248,0.8); }

.sidebar-inner { padding: 16px 0; }

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px 12px; border-bottom: 1px solid var(--border); margin-bottom: 8px;
}
.sidebar-title { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.sidebar-close-btn { display: none; }

/* TOC */
.toc { list-style: none; }
.toc-cat-btn {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 8px 16px;
  background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-family: var(--font); font-size: 0.82rem;
  font-weight: 500; text-align: left; letter-spacing: 0.01em;
  transition: all var(--transition); border-radius: 0;
}
.toc-cat-btn:hover { color: var(--text); background: var(--bg-card); }
.toc-cat-btn.active { color: var(--accent); background: var(--glow); }
.toc-cat-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.toc-icon { font-size: 12px; opacity: 0.6; }
.toc-count {
  font-size: 10px; padding: 1px 5px; border-radius: 10px;
  background: var(--border); color: var(--text-dim); font-family: var(--font-mono);
}
.toc-subcats { list-style: none; }
.toc-subcat-btn {
  display: flex; align-items: center; gap: 6px;
  width: 100%; padding: 6px 16px 6px 32px;
  background: none; border: none; cursor: pointer;
  color: var(--text-dim); font-family: var(--font); font-size: 0.78rem;
  text-align: left; transition: all var(--transition);
}
.toc-subcat-btn:hover { color: var(--accent); }
.toc-subcat-btn.active { color: var(--accent); }
.toc-subcat-btn::before { content: '›'; opacity: 0.5; }

/* Sidebar overlay on mobile */
.sidebar-overlay {
  display: none; position: fixed; inset: 0; z-index: 99;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(2px);
}
.sidebar-overlay.visible { display: block; }

/* ---------- Main Content ---------- */
.main-content {
  flex: 1; min-width: 0;
  overflow-x: hidden;
}

/* ---------- Hero Section ---------- */
.hero-section {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 80px 24px 60px; text-align: center; position: relative;
}
.hero-inner { max-width: 900px; margin: 0 auto; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 20px;
  background: var(--bg-card); border: 1px solid var(--border-glow);
  font-size: 0.8rem; color: var(--accent); font-weight: 500;
  margin-bottom: 32px; position: relative; overflow: hidden;
}
.scanner-line {
  position: absolute; top: 0; left: -100%; width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.3), transparent);
  animation: scan 3s ease-in-out infinite;
}
@keyframes scan { 0% { left: -100%; } 100% { left: 200%; } }

.hero-title {
  display: flex; flex-direction: column; align-items: center;
  gap: 0; margin-bottom: 24px; line-height: 1;
}
.hero-title-line1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700; color: var(--text);
  letter-spacing: -0.03em;
}
.hero-title-line2 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800; letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  filter: drop-shadow(0 0 20px var(--accent));
}
.terminal-cursor {
  display: inline-block; width: 3px; height: 1em;
  background: var(--accent); vertical-align: baseline;
  animation: blink 1s step-end infinite;
  margin-left: 4px; border-radius: 1px;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-muted);
  margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto;
  line-height: 1.7;
}
.hero-tagline strong { color: var(--accent-3); }

/* Hero Stats */
.hero-stats {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 40px;
}
.stat-card {
  display: flex; flex-direction: column; align-items: center;
  padding: 16px 24px; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  backdrop-filter: blur(8px); min-width: 90px;
  transition: all var(--transition);
}
.stat-card:hover { border-color: var(--accent); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
.stat-number {
  font-size: 2rem; font-weight: 800; font-family: var(--font-mono);
  color: var(--accent); line-height: 1;
}
.stat-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

/* Hero Actions */
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; color: #fff; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: all var(--transition);
  box-shadow: 0 4px 20px var(--glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--glow); filter: brightness(1.1); }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text); font-weight: 500; font-size: 0.95rem;
  cursor: pointer; transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-secondary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  background: none; border: 1px solid var(--border);
  color: var(--text-muted); font-size: 0.82rem; cursor: pointer;
  transition: all var(--transition);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Portal grid */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px; margin-top: 0;
}
.portal-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; padding: 20px 12px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer;
  transition: all 0.25s ease; text-align: center;
  backdrop-filter: blur(8px);
}
.portal-card:hover {
  border-color: var(--accent); background: var(--bg-card-hover);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 24px var(--glow);
}
.portal-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.portal-icon { font-size: 1.8rem; }
.portal-name { font-size: 0.78rem; font-weight: 600; color: var(--text); line-height: 1.3; }
.portal-count { font-size: 0.7rem; color: var(--text-dim); font-family: var(--font-mono); }

/* ---------- Filters Bar ---------- */
.filters-bar {
  background: rgba(10,14,26,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 50;
  transition: background var(--transition);
}
[data-theme="light"] .filters-bar { background: rgba(240,244,248,0.95); }

.sticky-filters {
  position: sticky; top: var(--topbar-h);
}
.filters-inner {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  padding: 10px 20px; max-width: 1600px; margin: 0 auto;
}
.filter-group { display: flex; align-items: center; gap: 6px; }
.filter-label { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; font-weight: 500; }
.filter-select {
  padding: 6px 10px; border-radius: 6px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text); font-size: 0.8rem; font-family: var(--font);
  cursor: pointer; outline: none; transition: all var(--transition);
}
.filter-select:focus { border-color: var(--accent); }
.filter-select option { background: var(--bg-2); color: var(--text); }
.filter-actions { display: flex; gap: 6px; margin-left: auto; }
.results-count { font-size: 0.75rem; color: var(--text-dim); font-family: var(--font-mono); padding: 0 6px; }

/* ---------- Explorer Section ---------- */
.explorer-section { padding: 0 0 80px; }
.tools-container { padding: 0 20px; max-width: 1600px; margin: 0 auto; }

/* Category Block */
.cat-block { margin-bottom: 48px; }
.cat-header {
  display: flex; align-items: center; gap: 12px;
  padding: 24px 0 16px; border-bottom: 1px solid var(--border);
  margin-bottom: 24px; cursor: pointer;
}
.cat-header:hover .cat-title { color: var(--accent); }
.cat-icon { font-size: 1.5rem; }
.cat-title {
  font-size: 1.4rem; font-weight: 700; color: var(--text);
  transition: color var(--transition); flex: 1;
  font-family: var(--font);
}
.cat-count {
  font-size: 0.75rem; padding: 3px 10px; border-radius: 20px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-muted); font-family: var(--font-mono);
}
.cat-toggle {
  background: none; border: none; color: var(--text-muted);
  font-size: 1.2rem; cursor: pointer; padding: 4px 8px; border-radius: 4px;
  transition: transform var(--transition), color var(--transition);
  line-height: 1;
}
.cat-toggle:hover { color: var(--accent); }
.cat-toggle[aria-expanded="false"] { transform: rotate(-90deg); }
.cat-body { overflow: hidden; transition: all 0.3s ease; }
.cat-description {
  font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px;
  padding: 10px 14px; background: var(--bg-card);
  border-radius: 6px; border-left: 3px solid var(--accent);
  font-style: italic;
}

/* Subcat block */
.subcat-block { margin-bottom: 32px; }
.subcat-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 1rem; font-weight: 600; color: var(--accent-2);
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.subcat-title::before { content: '›'; opacity: 0.6; }

/* Tools grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.compact-mode .tools-grid {
  grid-template-columns: 1fr; gap: 8px;
}
.focus-mode .tools-grid {
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
}

/* Tool Card */
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
  position: relative; overflow: hidden;
  cursor: default;
  transform-style: preserve-3d;
  will-change: transform;
}
.tool-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent, var(--glow));
  opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
  border-radius: var(--radius);
}
.tool-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 32px var(--glow);
  transform: translateY(-3px);
}
.tool-card:hover::before { opacity: 1; }
.tool-card.highlight {
  border-color: var(--accent-3);
  box-shadow: 0 0 0 2px var(--accent-3), 0 8px 32px rgba(6,255,165,0.2);
  animation: highlight-pulse 2s ease-in-out;
}
@keyframes highlight-pulse {
  0%,100% { box-shadow: 0 0 0 2px var(--accent-3), 0 8px 32px rgba(6,255,165,0.2); }
  50% { box-shadow: 0 0 0 4px var(--accent-3), 0 8px 40px rgba(6,255,165,0.4); }
}

.compact-mode .tool-card {
  padding: 10px 14px; border-radius: var(--radius-sm);
  display: flex; align-items: flex-start; gap: 12px; flex-wrap: wrap;
}
.compact-mode .tool-card:hover { transform: none; box-shadow: 0 2px 8px var(--glow); }

.tool-card-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 8px; margin-bottom: 8px;
}
.compact-mode .tool-card-header { margin-bottom: 0; flex: 0 0 200px; }

.tool-name {
  font-size: 0.95rem; font-weight: 700; color: var(--text);
  text-decoration: none; transition: color var(--transition);
  line-height: 1.3;
}
.tool-name:hover { color: var(--accent); text-decoration: none; }

.tool-actions { display: flex; gap: 4px; flex-shrink: 0; }
.tool-copy-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text-dim); font-size: 12px; padding: 4px;
  border-radius: 4px; transition: color var(--transition), background var(--transition);
  line-height: 1;
}
.tool-copy-btn:hover { color: var(--accent); background: var(--glow); }
.tool-copy-btn:focus-visible { outline: 2px solid var(--accent); }

.tool-description {
  font-size: 0.82rem; color: var(--text-muted); line-height: 1.5;
  margin-bottom: 10px;
}
.compact-mode .tool-description { flex: 1; margin-bottom: 0; font-size: 0.78rem; }
.focus-mode .tool-description { font-size: 0.9rem; }

mark { background: rgba(0,212,255,0.25); color: var(--accent); border-radius: 2px; padding: 0 2px; }

.tool-links { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.compact-mode .tool-links { margin-bottom: 0; }
.tool-link-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px; font-size: 0.72rem; font-weight: 500;
  border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-muted); text-decoration: none;
  transition: all var(--transition);
}
.tool-link-chip:hover { border-color: var(--accent); color: var(--accent); background: var(--glow); text-decoration: none; }
.tool-link-chip.source { border-color: rgba(124,58,237,0.4); color: var(--accent-2); }
.tool-link-chip.source:hover { background: var(--glow-2); border-color: var(--accent-2); }
.tool-link-chip.demo { border-color: rgba(6,255,165,0.3); color: var(--accent-3); }
.tool-link-chip.demo:hover { background: rgba(6,255,165,0.1); border-color: var(--accent-3); }

.tool-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.compact-mode .tool-tags { flex: 0; }
.tag-license {
  display: inline-block; padding: 2px 8px; border-radius: 12px;
  font-size: 0.68rem; font-weight: 600; font-family: var(--font-mono);
  background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.25);
  color: var(--accent);
}
.tag-lang {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 0.68rem; font-weight: 500; font-family: var(--font-mono);
  background: rgba(124,58,237,0.1); border: 1px solid rgba(124,58,237,0.25);
  color: var(--accent-2);
}
[data-theme="light"] .tag-license { background: rgba(0,102,204,0.08); border-color: rgba(0,102,204,0.2); color: var(--accent); }
[data-theme="light"] .tag-lang { background: rgba(109,40,217,0.08); border-color: rgba(109,40,217,0.2); }

/* ---------- No Results ---------- */
.no-results {
  text-align: center; padding: 80px 20px; color: var(--text-muted);
}
.no-results span { font-size: 3rem; display: block; margin-bottom: 16px; }
.no-results p { margin-bottom: 16px; }
.hidden { display: none !important; }

/* ---------- About Section ---------- */
.about-section { padding: 60px 20px; border-top: 1px solid var(--border); }
.about-inner { max-width: 1200px; margin: 0 auto; }
.section-title {
  display: flex; align-items: center; gap: 12px;
  font-size: 1.8rem; font-weight: 700; margin-bottom: 32px; color: var(--text);
}
.section-icon { font-size: 1.5rem; }
.about-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.about-card { padding: 24px; }
.about-card h3 { font-size: 1rem; font-weight: 700; color: var(--accent); margin-bottom: 12px; }
.about-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }
.about-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.about-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-card);
  font-size: 0.82rem; color: var(--text); transition: all var(--transition);
}
.about-link:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.stats-detail { font-size: 0.82rem; color: var(--text-muted); }
.stats-detail p { margin: 6px 0; display: flex; justify-content: space-between; }
.stats-detail strong { color: var(--accent); font-family: var(--font-mono); }

/* ---------- Glass Card ---------- */
.glass-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); backdrop-filter: blur(8px);
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; color: #fff; font-size: 1.1rem;
  cursor: pointer; box-shadow: 0 4px 16px var(--glow);
  transition: all var(--transition); display: flex; align-items: center; justify-content: center;
}
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 24px var(--glow); }
.back-to-top:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Command Palette ---------- */
.cmd-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 80px;
}
.cmd-overlay.hidden { display: none; }
.cmd-palette {
  width: 90%; max-width: 600px;
  background: var(--bg-2); border: 1px solid var(--border-glow);
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6), 0 0 0 1px var(--border);
  animation: cmd-appear 0.15s ease-out;
}
@keyframes cmd-appear { from { opacity: 0; transform: scale(0.96) translateY(-10px); } to { opacity: 1; transform: none; } }

.cmd-header {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.cmd-icon { font-size: 1rem; color: var(--accent); flex-shrink: 0; }
#cmd-input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text); font-size: 1rem; font-family: var(--font);
}
#cmd-input::placeholder { color: var(--text-dim); }
.cmd-esc {
  font-size: 0.7rem; padding: 3px 8px; border-radius: 4px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-dim); font-family: var(--font-mono); flex-shrink: 0;
}
.cmd-results { max-height: 360px; overflow-y: auto; }
.cmd-result-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; cursor: pointer; transition: background var(--transition);
  border-bottom: 1px solid var(--border); font-size: 0.88rem;
}
.cmd-result-item:last-child { border-bottom: none; }
.cmd-result-item:hover, .cmd-result-item.focused { background: var(--bg-card-hover); color: var(--accent); }
.cmd-result-icon { font-size: 1rem; flex-shrink: 0; }
.cmd-result-label { flex: 1; color: var(--text); }
.cmd-result-item:hover .cmd-result-label, .cmd-result-item.focused .cmd-result-label { color: var(--accent); }
.cmd-result-type { font-size: 0.7rem; color: var(--text-dim); font-family: var(--font-mono); }
.cmd-footer {
  display: flex; gap: 16px; padding: 8px 16px;
  border-top: 1px solid var(--border); font-size: 0.72rem; color: var(--text-dim);
}
.cmd-footer kbd {
  padding: 2px 6px; border-radius: 3px;
  background: var(--bg-card); border: 1px solid var(--border);
  font-family: var(--font-mono); font-size: 0.68rem;
}

/* ---------- Retro Terminal Easter Egg ---------- */
body.retro-mode {
  --bg: #001100; --bg-2: #001a00; --bg-card: rgba(0,255,0,0.05);
  --bg-card-hover: rgba(0,255,0,0.1); --border: rgba(0,255,0,0.2);
  --text: #00ff00; --text-muted: #00aa00; --text-dim: #007700;
  --accent: #00ff00; --accent-2: #00cc00; --accent-3: #00ff88;
  --glow: rgba(0,255,0,0.15); --glow-2: rgba(0,204,0,0.15);
  font-family: var(--font-mono) !important;
}
body.retro-mode .bg-glow-1 { background: radial-gradient(circle, rgba(0,255,0,0.2), transparent 70%); }
body.retro-mode .bg-glow-2 { background: radial-gradient(circle, rgba(0,200,0,0.15), transparent 70%); }
body.retro-mode .hero-title-line2 {
  background: none; -webkit-text-fill-color: #00ff00;
  filter: drop-shadow(0 0 20px #00ff00);
}

/* ---------- Focus Mode ---------- */
.focus-mode .sidebar { display: none; }
.focus-mode .tool-description { font-size: 0.95rem; line-height: 1.7; }

/* ---------- Animate in ---------- */
.cat-block { animation: fade-up 0.4s ease both; }
@keyframes fade-up { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed; top: var(--topbar-h); left: 0; bottom: 0;
    transform: translateX(-100%); z-index: 100;
    box-shadow: 4px 0 24px rgba(0,0,0,0.4);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close-btn { display: flex !important; }
  .sidebar-overlay { display: none; }
  .sidebar-overlay.visible { display: block; }
  .app-layout { display: block; }
  .main-content { width: 100%; }
  .topbar-center { max-width: 100%; }
}

@media (max-width: 768px) {
  .tools-grid { grid-template-columns: 1fr; }
  .portal-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
  .hero-actions { flex-direction: column; align-items: center; }
  .filters-inner { gap: 8px; }
  .filter-group { flex-wrap: wrap; }
  .filter-actions { width: 100%; }
  .topbar-right .icon-btn:not(#theme-toggle):not(.github-btn):not(#btn-surprise) { display: none; }
  .search-shortcut { display: none; }
}

@media (max-width: 480px) {
  .topbar-inner { padding: 0 10px; gap: 8px; }
  .hero-section { padding: 60px 16px 40px; }
  .tools-container { padding: 0 12px; }
  .search-input { font-size: 0.85rem; }
  .logo-text { display: none; }
}

/* Scrollbar global */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }