/* ── Variables ─────────────────────────────────────── */
:root {
  --purple:     #7C3AED;
  --purple-dim: #5B21B6;
  --cyan:       #06B6D4;
  --green:      #22C55E;
  --yellow:     #EAB308;

  /* Dark theme */
  --bg:         #0A0A0F;
  --bg2:        #111118;
  --bg3:        #1A1A24;
  --border:     rgba(124,58,237,0.15);
  --text:       #F1F0FF;
  --text-dim:   #6B6B8A;
  --text-mid:   #A8A8C0;
  --card-bg:    rgba(255,255,255,0.03);
  --nav-bg:     rgba(10,10,15,0.85);
  --term-bg:    #0D0D14;
}

[data-theme="light"] {
  --bg:         #F8F7FF;
  --bg2:        #F0EEFF;
  --bg3:        #E8E4FF;
  --border:     rgba(124,58,237,0.2);
  --text:       #1A1028;
  --text-dim:   #8878B0;
  --text-mid:   #5A4880;
  --card-bg:    rgba(124,58,237,0.04);
  --nav-bg:     rgba(248,247,255,0.9);
  --term-bg:    #1A1428;
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { opacity: 0.8; }

.container { width: 90%; max-width: 1100px; margin: 0 auto; }

/* ── Nav ───────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 0;
}
.nav-inner {
  display: flex; align-items: center; gap: 2rem;
  width: 90%; max-width: 1100px; margin: 0 auto;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--text); font-weight: 700; font-size: 1.1rem;
}
.logo-mark { color: var(--purple); font-size: 1.3rem; }
.logo-version {
  font-size: 0.65rem; color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg3); padding: 2px 6px; border-radius: 4px;
}
.nav-links {
  display: flex; gap: 1.8rem; list-style: none; margin-left: auto;
}
.nav-links a { color: var(--text-mid); font-size: 0.9rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-github {
  display: flex; align-items: center; gap: 0.4rem;
  color: var(--purple) !important; font-weight: 500;
  border: 1px solid var(--border); padding: 4px 12px; border-radius: 6px;
}
.theme-toggle {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; cursor: pointer;
  font-size: 1rem; transition: all 0.2s;
}
.theme-toggle:hover { border-color: var(--purple); }
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }

/* ── Hero ──────────────────────────────────────────── */
.hero {
  position: relative; padding: 8rem 0 4rem; overflow: hidden;
  min-height: 100vh; display: flex; align-items: center;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-glow {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.12;
}
.hero-glow-1 {
  width: 600px; height: 600px;
  background: var(--purple);
  top: -100px; left: -200px;
}
.hero-glow-2 {
  width: 400px; height: 400px;
  background: var(--cyan);
  bottom: 0; right: -100px;
}
.hero .container { position: relative; }
.hero-badge {
  display: inline-block;
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.3);
  color: var(--purple); font-size: 0.8rem; font-weight: 500;
  padding: 4px 14px; border-radius: 20px; margin-bottom: 1.5rem;
  font-family: 'JetBrains Mono', monospace;
}
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700; line-height: 1;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--text) 60%, var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.logo-mark-hero { color: var(--purple); -webkit-text-fill-color: var(--purple); }
.hero-sub {
  font-family: 'JetBrains Mono', monospace;
  color: var(--cyan); font-size: 0.95rem; margin-bottom: 1rem;
}
.hero-tagline {
  font-size: 1.2rem; color: var(--text-mid); margin-bottom: 2rem; line-height: 1.5;
}
.hero-actions { display: flex; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 2rem; justify-content: center; margin-top: 2rem; }
.stat-item { text-align: center; }
.stat-number { font-size: 1.8rem; font-weight: 700; color: var(--purple); }
.stat-label { font-size: 0.85rem; color: var(--text-dim); }
.btn-primary {
  background: var(--purple); color: white;
  padding: 0.75rem 2rem; border-radius: 8px; font-weight: 600;
  transition: all 0.2s; display: inline-block;
}
.btn-primary:hover { background: var(--purple-dim); transform: translateY(-1px); opacity: 1; }
.btn-ghost {
  color: var(--text-mid); border: 1px solid var(--border);
  padding: 0.75rem 2rem; border-radius: 8px; font-weight: 500;
  transition: all 0.2s; display: inline-block;
}
.btn-ghost:hover { border-color: var(--purple); color: var(--text); opacity: 1; }

/* Terminal */
.terminal {
  background: var(--term-bg);
  border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  font-family: 'JetBrains Mono', monospace; font-size: 0.82rem;
  box-shadow: 0 40px 80px rgba(0,0,0,0.4);
  max-width: 700px;
  margin: 0 auto;
}
.new-features { display: flex; gap: 1.5rem; margin-top: 2rem; justify-content: center; }
.feature-highlight { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 1.2rem; max-width: 300px; }
.feature-highlight h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-highlight p { font-size: 0.85rem; color: var(--text-mid); }
.terminal-header {
  background: rgba(255,255,255,0.05);
  padding: 0.7rem 1rem;
  display: flex; align-items: center; gap: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: #FF5F57; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #28C840; }
.terminal-title { margin-left: 0.5rem; color: var(--text-dim); font-size: 0.78rem; }
.terminal-body { padding: 1.2rem 1.2rem; line-height: 2; }
.term-line { display: block; }
.term-prompt { color: var(--purple); font-weight: 600; }
.term-cmd { color: var(--text); }
.term-dim { color: #4A4A6A; }
.term-step { color: var(--yellow); }
.term-warn { color: var(--text-mid); }
.term-green { color: var(--green); }
.term-bar { color: var(--cyan); }
.term-tool { color: var(--text-dim); }
.term-str { color: #A8D8A8; }
.terminal-statusbar {
  background: rgba(124,58,237,0.08);
  border-top: 1px solid var(--border);
  padding: 0.4rem 1rem;
  display: flex; gap: 1.5rem;
  font-size: 0.72rem; color: var(--purple);
}
.status-item.dim { color: var(--text-dim); }

/* ── Sections common ───────────────────────────────── */
section { padding: 6rem 0; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem; color: var(--cyan); letter-spacing: 2px;
  text-transform: uppercase; display: block; margin-bottom: 0.75rem;
}
.section-header h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; margin-bottom: 0.5rem; }
.section-header p { color: var(--text-mid); font-size: 1rem; }

/* ── Features ──────────────────────────────────────── */
.features { background: var(--bg2); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px; padding: 1.8rem;
  transition: all 0.2s;
}
.feature-card:hover { border-color: rgba(124,58,237,0.4); transform: translateY(-2px); }
.feature-card--highlight { border-color: rgba(124,58,237,0.4); background: rgba(124,58,237,0.05); }
.feature-icon { font-size: 1.5rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.6rem; }
.feature-card p { color: var(--text-mid); font-size: 0.9rem; line-height: 1.6; }
.feature-tag {
  display: inline-block; margin-top: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; color: var(--cyan);
  background: rgba(6,182,212,0.1); padding: 2px 8px; border-radius: 4px;
}

/* ── How it works ──────────────────────────────────── */
.how { background: var(--bg); }
.steps-flow {
  display: flex; align-items: flex-start;
  gap: 0.5rem; flex-wrap: wrap; justify-content: center;
}
.step-item {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.2rem 1rem;
  text-align: center; min-width: 110px; flex: 1;
  transition: all 0.2s;
}
.step-item:hover { border-color: rgba(124,58,237,0.5); }
.step-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem; font-weight: 700;
  color: var(--purple); margin-bottom: 0.5rem;
}
.step-content h4 { font-size: 0.85rem; font-weight: 600; margin-bottom: 0.3rem; }
.step-content p { font-size: 0.75rem; color: var(--text-dim); line-height: 1.4; }
.step-arrow { color: var(--border); font-size: 1.2rem; align-self: center; padding: 0 0.2rem; }

/* ── Commands ──────────────────────────────────────── */
.commands { background: var(--bg2); }
.commands-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
}
.cmd-item {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.8rem 1rem;
}
.cmd {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem; color: var(--purple); font-weight: 600;
  white-space: nowrap;
}
.cmd-desc { font-size: 0.82rem; color: var(--text-mid); }

/* ── Install ───────────────────────────────────────── */
.install { background: var(--bg); }
.install-blocks { display: flex; flex-direction: column; gap: 1rem; max-width: 600px; margin: 0 auto 1.5rem; }
.install-block {}
.install-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.4rem;
}
.install-code {
  display: flex; align-items: center;
  background: var(--term-bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.9rem 1.2rem;
  font-family: 'JetBrains Mono', monospace; font-size: 0.9rem;
  color: var(--green);
}
.install-code code { flex: 1; }
.copy-btn {
  background: rgba(124,58,237,0.15); border: 1px solid rgba(124,58,237,0.3);
  color: var(--purple); font-size: 0.72rem; font-family: 'Inter', sans-serif;
  padding: 4px 10px; border-radius: 5px; cursor: pointer; white-space: nowrap;
  transition: all 0.2s;
}
.copy-btn:hover { background: rgba(124,58,237,0.3); }
.install-note { text-align: center; color: var(--text-dim); font-size: 0.85rem; margin-bottom: 1.5rem; }
.install-note a { color: var(--cyan); }
.models-list { display: flex; gap: 0.6rem; flex-wrap: wrap; justify-content: center; }
.model-tag {
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text-mid); padding: 4px 10px; border-radius: 20px;
}

/* ── Footer ────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 2rem 0; background: var(--bg2); }
.footer-inner {
  display: flex; align-items: center; gap: 2rem; flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-dim); font-size: 0.85rem; }
.footer-links a:hover { color: var(--text); }
.footer-copy { margin-left: auto; color: var(--text-dim); font-size: 0.8rem; }

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; margin-left: auto; }
  .hero { padding-top: 6rem; }
  .steps-flow { flex-direction: column; align-items: stretch; }
  .step-arrow { display: none; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-copy { margin-left: 0; }
}

/* ── Animations ────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero .container > * { animation: fadeUp 0.6s ease both; }
.hero-badge    { animation-delay: 0.0s; }
.hero-title    { animation-delay: 0.1s; }
.hero-sub      { animation-delay: 0.2s; }
.hero-tagline  { animation-delay: 0.25s; }
.hero-actions  { animation-delay: 0.3s; }
.terminal      { animation-delay: 0.4s; }