/* ── RESET ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ── THEME VARIABLES ── */
:root {
  --bg: #0a0a0a;
  --bg-card: #111111;
  --bg-card-hover: #161616;
  --border: #1a1a1a;
  --border-hover: #2a2a2a;
  --text: #e0e0e0;
  --text-muted: #666666;
  --text-dim: #444444;
  --green: #00ff41;
  --green-dim: #00cc33;
  --green-muted: rgba(0, 255, 65, 0.08);
  --amber: #ffb000;
  --amber-dim: #cc8d00;
  --amber-muted: rgba(255, 176, 0, 0.08);
  --cyan: #00d4ff;
  --cyan-dim: #00a8cc;
  --cyan-muted: rgba(0, 212, 255, 0.08);
  --white: #ffffff;
  --mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', monospace;
  --nav-bg: rgba(10, 10, 10, 0.85);
}

html.light {
  --bg: #f8f9fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f1f2;
  --border: #e0e0e0;
  --border-hover: #c8c8c8;
  --text: #1a1a1a;
  --text-muted: #555555;
  --text-dim: #888888;
  --green: #00a82d;
  --green-dim: #008522;
  --green-muted: rgba(0, 168, 45, 0.1);
  --amber: #cc8800;
  --amber-dim: #a66d00;
  --amber-muted: rgba(204, 136, 0, 0.1);
  --cyan: #0099cc;
  --cyan-dim: #007799;
  --cyan-muted: rgba(0, 153, 204, 0.1);
  --white: #0a0a0a;
  --nav-bg: rgba(248, 249, 250, 0.9);
}

@media (prefers-color-scheme: light) {
  html:not(.dark) {
    --bg: #f8f9fa;
    --bg-card: #ffffff;
    --bg-card-hover: #f0f1f2;
    --border: #e0e0e0;
    --border-hover: #c8c8c8;
    --text: #1a1a1a;
    --text-muted: #555555;
    --text-dim: #888888;
    --green: #00a82d;
    --green-dim: #008522;
    --green-muted: rgba(0, 168, 45, 0.1);
    --amber: #cc8800;
    --amber-dim: #a66d00;
    --amber-muted: rgba(204, 136, 0, 0.1);
    --cyan: #0099cc;
    --cyan-dim: #007799;
    --cyan-muted: rgba(0, 153, 204, 0.1);
    --white: #0a0a0a;
    --nav-bg: rgba(248, 249, 250, 0.9);
  }
}

/* ── BASE ── */
html {
  scroll-behavior: smooth;
  color-scheme: dark light;
}

html, body, nav, .skill-card, .install-box, .stat, .badge {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body {
  font-family: var(--mono);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection {
  background: var(--green);
  color: var(--bg);
}

a {
  color: var(--green);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}

.nav-brand .dot { color: var(--green); }

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 13px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
  opacity: 1;
}

.nav-cta {
  padding: 6px 14px;
  border: 1px solid var(--border-hover);
  border-radius: 4px;
  color: var(--text) !important;
  font-size: 12px;
  transition: all 0.2s;
  cursor: pointer;
}

.nav-cta:hover {
  border-color: var(--green);
  color: var(--green) !important;
  background: var(--green-muted);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  padding: 0;
  border: 1px solid var(--border-hover);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.theme-toggle:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--amber-muted);
}

.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
html.light .theme-toggle .icon-sun { display: block; }
html.light .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: light) {
  html:not(.dark) .theme-toggle .icon-sun { display: block; }
  html:not(.dark) .theme-toggle .icon-moon { display: none; }
}

/* ── LAYOUT ── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* ── HERO ── */
.hero {
  padding-top: 140px;
  padding-bottom: 32px;
  text-align: center;
}

.ascii-art {
  font-size: clamp(5px, 1.05vw, 11px);
  color: var(--green);
  line-height: 1.15;
  white-space: pre;
  overflow-x: auto;
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-tagline strong {
  color: var(--text);
}

.hero-headline {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.install-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 18px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  max-width: 100%;
}

.install-box:hover {
  border-color: var(--border-hover);
}

.install-box .prompt { color: var(--green); }
.install-box code { color: var(--text); }

.copy-btn {
  background: none;
  border: 1px solid var(--border-hover);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

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

.install-hint {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 12px;
}

/* ── STAT BADGES ── */
.badges {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.badge {
  font-size: 11px;
  color: var(--text-muted);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 20px;
}

/* ── SEARCH + FILTER ── */
.search-filter {
  margin-bottom: 40px;
}

.search-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
  margin-bottom: 20px;
}

.search-input::placeholder {
  color: var(--text-dim);
}

.search-input:focus {
  border-color: var(--green);
}

.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 6px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-tab:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

.filter-tab.active {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-muted);
}

/* ── SKILLS GRID ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.skill-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: all 0.2s;
}

.skill-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  opacity: 1;
}

.skill-card.pro-tier {
  border-color: var(--cyan-muted);
}

.skill-card.pro-tier:hover {
  border-color: var(--cyan-dim);
}

.skill-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.skill-tag {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 500;
  white-space: nowrap;
}

.tag-green {
  color: var(--green);
  background: var(--green-muted);
}

.tag-amber {
  color: var(--amber);
  background: var(--amber-muted);
}

.tag-cyan {
  color: var(--cyan);
  background: var(--cyan-muted);
}

.skill-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.skill-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
}

/* ── SKILL DETAIL PAGE ── */
.breadcrumb {
  padding-top: 100px;
  padding-bottom: 0;
  font-size: 13px;
  color: var(--text-dim);
}

.breadcrumb a {
  color: var(--text-muted);
}

.skill-header {
  padding-top: 24px;
  padding-bottom: 40px;
}

.skill-header h1 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.description-section {
  padding: 0 0 20px;
}

.skill-description {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.skill-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn-primary {
  padding: 12px 24px;
  background: var(--green);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  opacity: 0.9;
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.2);
  color: var(--bg);
}

.btn-disabled {
  padding: 12px 24px;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: default;
  position: relative;
}

.btn-disabled .tooltip {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.btn-disabled:hover .tooltip {
  display: block;
}

.metadata-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-dim);
}

.metadata-row span::before {
  content: "·";
  margin-right: 16px;
}

.metadata-row span:first-child::before {
  display: none;
}

/* ── COMMANDS TABLE ── */
.commands-section {
  padding: 40px 0;
}

.commands-section h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.commands-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.commands-table thead th {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--border);
  color: var(--text-muted);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.commands-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.commands-table tbody td:first-child {
  font-family: var(--mono);
  color: var(--green);
  white-space: nowrap;
}

.commands-table tbody tr:hover {
  background: var(--bg-card-hover);
}

/* ── EXAMPLES ── */
.examples-section {
  padding: 40px 0;
}

.examples-section h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.examples-list {
  list-style: none;
  padding: 0;
}

.examples-list li {
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--text);
  font-style: italic;
}

.examples-list li::before {
  content: '"';
  color: var(--green);
}

.examples-list li::after {
  content: '"';
  color: var(--green);
}

/* ── QUICK START ── */
.quickstart-section {
  padding: 40px 0;
}

.quickstart-section h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.quickstart-code {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px 20px;
  font-size: 13px;
  color: var(--green);
  overflow-x: auto;
  margin-bottom: 12px;
}

.quickstart-code .comment {
  color: var(--text-dim);
}

/* ── RELATED SKILLS ── */
.related-section {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border);
}

.related-section h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}

/* ── STATS ROW ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 48px;
}

.stat {
  background: var(--bg-card);
  padding: 24px;
  text-align: center;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-disclaimer {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 24px;
  text-align: center;
}

.footer-disclaimer a {
  color: var(--text-muted);
}

.footer-divider {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  margin-bottom: 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  font-size: 12px;
  color: var(--text-dim);
}

.footer-left a { color: var(--text-muted); }

.footer-right {
  display: flex;
  gap: 20px;
}

.footer-right a {
  font-size: 12px;
  color: var(--text-dim);
  transition: color 0.2s;
}

.footer-right a:hover {
  color: var(--text-muted);
  opacity: 1;
}

/* ── NO RESULTS ── */
.no-results {
  text-align: center;
  padding: 60px 0;
  color: var(--text-dim);
  font-size: 14px;
  display: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .skills-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .nav-links a:not(.nav-cta):not(.theme-toggle) { display: none; }
}

@media (max-width: 640px) {
  nav { padding: 12px 16px; }
  .nav-links { gap: 10px; }
  .nav-cta { font-size: 11px; padding: 5px 10px; }
  .container { padding: 0 16px; }
  section { padding: 60px 0; }
  .hero { padding-top: 120px; padding-bottom: 24px; }
  .ascii-art { font-size: clamp(3.5px, 2.2vw, 7px); }
  .skills-grid { grid-template-columns: 1fr; }
  .stat-value { font-size: 22px; }
  .stat { padding: 16px; }
  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .commands-table { font-size: 12px; }
  .commands-table thead th, .commands-table tbody td { padding: 10px 12px; }
}

/* ── ANIMATIONS ── */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeIn 0.5s ease forwards;
  }
  @keyframes fadeIn {
    to { opacity: 1; transform: translateY(0); }
  }
  .delay-1 { animation-delay: 0.1s; }
  .delay-2 { animation-delay: 0.2s; }
  .delay-3 { animation-delay: 0.3s; }
}