/* ── Base ─────────────────────────────────────────── */

:root {
  --bg: #0a0a0a;
  --bg-card: #111111;
  --bg-card-hover: #1a1a1a;
  --border: #1e1e1e;
  --border-hover: #2a2a2a;
  --text: #e4e4e7;
  --text-muted: #71717a;
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.12);
  --violet: #a78bfa;
  --violet-dim: rgba(167, 139, 250, 0.12);
  --green: #4ade80;
  --yellow: #facc15;
  --red: #f87171;
  --orange: #fb923c;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Dot-grid hero background ────────────────────── */

.hero-bg {
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* ── Terminal window frame ───────────────────────── */

.terminal-frame {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot:nth-child(1) { background: #ef4444; }
.terminal-dot:nth-child(2) { background: #eab308; }
.terminal-dot:nth-child(3) { background: #22c55e; }

.terminal-title {
  margin-left: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
}

.terminal-body {
  padding: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 1.7;
  overflow-x: auto;
}

.terminal-body img {
  width: 100%;
  display: block;
}

/* ── Code syntax colors ──────────────────────────── */

.syn-prompt { color: var(--green); user-select: none; }
.syn-cmd    { color: var(--cyan); }
.syn-flag   { color: var(--violet); }
.syn-str    { color: var(--yellow); }
.syn-cmt    { color: var(--text-muted); font-style: italic; }
.syn-key    { color: var(--cyan); }
.syn-num    { color: var(--orange); }
.syn-bool   { color: var(--violet); }
.syn-null   { color: var(--text-muted); }
.syn-op     { color: var(--red); }
.syn-pipe   { color: var(--text-muted); }
.syn-transform { color: var(--violet); }

/* ── Feature cards ───────────────────────────────── */

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

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

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.feature-icon.cyan  { background: var(--cyan-dim);  color: var(--cyan); }
.feature-icon.violet { background: var(--violet-dim); color: var(--violet); }

/* ── Copy button ─────────────────────────────────── */

.copy-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 14px;
  transition: color 0.2s, border-color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.copy-btn.copied {
  color: var(--green);
  border-color: rgba(74, 222, 128, 0.3);
}

/* ── Install cards ───────────────────────────────── */

.install-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

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

/* ── Comparison table ────────────────────────────── */

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.comparison-table th,
.comparison-table td {
  padding: 12px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.comparison-table th {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comparison-table td:first-child {
  text-align: left;
  color: var(--text);
  font-weight: 500;
}

.comparison-table th.highlight,
.comparison-table td.highlight {
  background: var(--cyan-dim);
}

.comparison-table th.highlight {
  color: var(--cyan);
}

.check { color: var(--green); }
.dash  { color: var(--text-muted); }

/* ── Pill / badge ────────────────────────────────── */

.pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

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

.install-pill {
  cursor: pointer;
  background: none;
}

.install-pill.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
}

/* ── Navbar ──────────────────────────────────────── */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 16px 0;
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

/* ── Mobile nav ──────────────────────────────────── */

.mobile-menu {
  display: none;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
}

@media (max-width: 768px) {
  .nav-links { display: none !important; }
  .hamburger { display: block; }

  .mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(12px);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
  }

  .mobile-menu.open {
    display: flex;
  }

  .mobile-menu a {
    font-size: 24px;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
  }

  .mobile-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 28px;
    cursor: pointer;
  }
}

/* ── Scroll animations ───────────────────────────── */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Section spacing ─────────────────────────────── */

section {
  padding: 96px 0;
}

@media (max-width: 768px) {
  section {
    padding: 64px 0;
  }

  .terminal-body {
    font-size: 12px;
    padding: 14px;
  }
}

/* ── Scrollbar ───────────────────────────────────── */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}