/* ═══════════════════════════════════════════════════
   CodeSnippetz — styles.css
   Dark navy snippet library design system
═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Exo+2:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

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

:root {
  --bg:      #070c14;
  --surface: #0e1a29;
  --panel:   #142639;
  --border:  rgba(150,214,232,.16);
  --accent:  #22e0c6;
  --accent2: #ff8c5a;
  --amber:   #ffcf6b;
  --text:    #e7f2f7;
  --muted:   #6f93a3;
  --radius:  10px;
  --font-display: 'Orbitron', sans-serif;
  --font-body:    'Exo 2', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
}

/* ── Base ── */
html { scroll-behavior: smooth; overflow-x: hidden; }

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

body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background-image:
    linear-gradient(rgba(150,214,232,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150,214,232,.035) 1px, transparent 1px);
  background-size: 52px 52px;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
::selection { background: rgba(34,224,198,.3); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ════════════════════════════════
   NAVBAR
════════════════════════════════ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7,12,20,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar::after {
  content: '';
  position: absolute; bottom: -1px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg,transparent,var(--accent),var(--accent2),var(--amber),var(--accent),transparent);
  background-size: 300% 100%;
  animation: navscan 7s linear infinite;
  opacity: .8;
  /* Isolate this element's paint so the page's own frequent repaints
     (the mousemove-driven resizable split panes) don't interrupt the
     gradient mid-cycle and make it look like it's flashing instead of
     fading smoothly. */
  contain: paint;
  will-change: background-position;
}
@keyframes navscan { 0% { background-position: 0% 50%; } 100% { background-position: 300% 50%; } }

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color 0.18s, background 0.18s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--panel);
}

.nav-links a.active {
  color: var(--accent);
}

/* ════════════════════════════════
   HERO (index only)
════════════════════════════════ */
.hero {
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(ellipse, rgba(34,224,198,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  opacity: 0.8;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.2vw, 3.4rem);
  font-weight: 900;
  letter-spacing: .5px;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero h1 .grad {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 480px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.search-wrap {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}

.search-wrap svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34,224,198,0.08);
}

/* ════════════════════════════════
   CATEGORY GRID (index)
════════════════════════════════ */
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  margin-bottom: 2rem;
}

.cat-grid {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.cat-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  transition: border-color 0.22s, transform 0.22s, box-shadow 0.22s;
  position: relative;
  overflow: hidden;
}

.cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.22s;
}

.cat-card:hover {
  border-color: rgba(34,224,198,0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.cat-card:hover::before { opacity: 1; }

.cat-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.cat-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .4px;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.cat-desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.cat-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  color: var(--accent);
  background: rgba(34,224,198,0.1);
  border: 1px solid rgba(34,224,198,0.2);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  display: inline-block;
}

/* ════════════════════════════════
   PAGE HEADER (category pages)
════════════════════════════════ */
.page-header {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}

.page-header .breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.page-header .breadcrumb a { color: var(--accent); }
.page-header .breadcrumb a:hover { text-decoration: underline; }

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4.2vw, 2.6rem);
  font-weight: 900;
  letter-spacing: .3px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--muted);
  font-size: 0.88rem;
  font-family: 'JetBrains Mono', monospace;
}

/* ════════════════════════════════
   FILTER / TAG ROW
════════════════════════════════ */
.filter-row {
  max-width: 960px;
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  transition: all 0.18s;
}

.filter-tag:hover { border-color: var(--accent2); color: var(--accent2); }
.filter-tag.active { border-color: var(--accent); color: var(--accent); background: rgba(34,224,198,0.08); }

/* ════════════════════════════════
   SNIPPET GRID CONTAINER
════════════════════════════════ */
.snippets-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}

/* ── Each snippet section ── */
.snippet-section { display: flex; flex-direction: column; gap: 1rem; }

.section-title {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .3px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.section-title .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.section-title .desc {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--muted);
}

/* ── Preview strip ── */
.preview-strip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.preview-label {
  padding: 0.5rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.preview-area {
  padding: 2.5rem 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 130px;
  gap: 1.5rem;
  flex-wrap: wrap;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(34,224,198,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 50%, rgba(255,140,90,0.04) 0%, transparent 60%);
}

/* ── Snippets row ── */
.snippets-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  min-width: 0;
}

@media (max-width: 640px) {
  .snippets-row { grid-template-columns: 1fr; }
}

/* ── Snippet card ── */
.snippet-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-width: 0;
}

.snippet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.snippet-meta { display: flex; align-items: center; gap: 0.6rem; }

.dots { display: flex; gap: 5px; }
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot.r { background: #ff5f57; }
.dot.y { background: #ffbd2e; }
.dot.g { background: #28c840; }

.lang-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.18rem 0.55rem;
  border-radius: 4px;
}
.lang-tag.html { background: rgba(255,140,90,0.15); color: var(--accent2); }
.lang-tag.css  { background: rgba(34,224,198,0.15); color: var(--accent); }
.lang-tag.js   { background: rgba(255,207,107,0.15); color: var(--amber); }

/* ── Copy button ── */
.copy-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 0.28rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.copy-btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(34,224,198,0.06); }
.copy-btn.copied { border-color: var(--accent); color: var(--accent); background: rgba(34,224,198,0.1); }

/* ── Code block ── */
.snippet-body {
  padding: 1rem 1.2rem;
  overflow-x: auto;
}

pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--text);
  white-space: pre;
  tab-size: 2;
  max-width: 100%;
  overflow-x: auto;
}

/* ════════════════════════════════
   SYNTAX HIGHLIGHT TOKENS
════════════════════════════════ */
.t-tag  { color: var(--accent2); }
.t-attr { color: var(--amber); }
.t-val  { color: var(--accent2); }
.t-sel  { color: var(--accent2); }
.t-prop { color: var(--accent); }
.t-num  { color: var(--accent); }
.t-str  { color: var(--amber); }
.t-kw   { color: var(--accent2); }
.t-com  { color: var(--muted); font-style: italic; }

/* ════════════════════════════════
   FOOTER
════════════════════════════════ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  margin-top: 5rem;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.4rem;
}

.footer-tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--muted);
}

/* ════════════════════════════════
   RESPONSIVE
════════════════════════════════ */
@media (max-width: 768px) {
  .navbar { padding: 0 1rem; }
  .nav-links { gap: 0; }
  .nav-links a { padding: 0.35rem 0.5rem; font-size: 0.65rem; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 500px) {
  .cat-grid { grid-template-columns: 1fr; }
  .nav-links a { display: none; }
  .nav-links a.active,
  .nav-links a[data-show] { display: block; }
}