/* ========================================
   mind-map landing page
   Dark theme, Inter font, same design system as devcontainer-mcp
   ======================================== */

:root {
  --bg: #0f1117;
  --bg-surface: #161822;
  --bg-card: #1c1f2e;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --accent: #0078D4;
  --accent-glow: rgba(0, 120, 212, 0.15);
  --orange: #FF6B35;
  --green: #22c55e;
  --red: #ef4444;
  --border: #2a2d3e;
  --radius: 12px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: 0.875em; }

/* ---- Nav ---- */
.nav {
  position: fixed; top: 0; width: 100%;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  height: 64px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.5rem;
  font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none;
}
.logo-icon { font-size: 1.4rem; color: var(--accent); }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: var(--text-dim); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-github {
  background: var(--bg-card); padding: 0.4rem 1rem;
  border-radius: 8px; border: 1px solid var(--border);
}
.nav-toggle {
  display: none; background: none; border: none;
  color: var(--text-dim); cursor: pointer; padding: 0.25rem;
}

/* ---- Hero ---- */
.hero {
  padding: 10rem 2rem 3rem; text-align: center;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 60%);
}
.hero-inner { max-width: 800px; margin: 0 auto; }
.hero-badges { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-bottom: 1.5rem; }
.hero-badge {
  display: inline-block; padding: 0.3rem 1rem; border-radius: 999px;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--accent); font-size: 0.8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.hero h1 { font-size: 3.2rem; font-weight: 800; line-height: 1.15; margin-bottom: 1.5rem; letter-spacing: -0.02em; }
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--orange));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub { font-size: 1.2rem; color: var(--text-dim); max-width: 640px; margin: 0 auto 2.5rem; line-height: 1.7; }

/* Install box */
.hero-cta { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.install-wrapper { display: flex; flex-direction: column; align-items: center; width: 100%; max-width: 720px; gap: 0.6rem; }
.install-tabs {
  display: inline-flex; background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 3px; gap: 2px;
}
.install-tab {
  padding: 0.35rem 1rem; background: transparent; color: var(--text-muted);
  border: none; border-radius: 6px; cursor: pointer; font-family: var(--font);
  font-size: 0.78rem; font-weight: 500; transition: all 0.2s;
}
.install-tab.active { background: var(--bg-card); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,0.3); }
.install-tab:hover:not(.active) { color: var(--text-dim); }
.install-note { font-size: 0.78rem; color: var(--text-muted); text-align: center; }
.install-note code { color: var(--text-dim); }
.install-box {
  display: flex; align-items: center; gap: 0.5rem; background: var(--bg-surface);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 0.75rem 1rem;
  font-family: var(--mono); font-size: 0.85rem; color: var(--green); width: 100%;
}
.install-box code { white-space: nowrap; overflow-x: auto; flex: 1; min-width: 0; }
.copy-btn {
  background: var(--bg-card); color: var(--text-dim); border: 1px solid var(--border);
  border-radius: 6px; padding: 0.4rem; cursor: pointer; display: flex;
  align-items: center; justify-content: center; transition: all 0.2s; flex-shrink: 0;
}
.copy-btn:hover { border-color: var(--accent); color: var(--text); }
.copy-btn.copied { border-color: var(--green); color: var(--green); }

/* Works with */
.hero-works-with { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-top: 2rem; }
.works-with-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.client-pills { display: flex; gap: 0.75rem; align-items: center; }
.client-pill {
  display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.3rem 0.9rem;
  border-radius: 999px; background: #2a2f42; border: 1px solid #3d4358;
  font-size: 0.8rem; font-weight: 500; color: #cbd5e1;
}
.client-pill img { height: 16px; width: auto; }
.hero-platforms { margin-top: 1.5rem; font-size: 0.8rem; color: var(--text-muted); letter-spacing: 0.05em; }

/* ---- Sections ---- */
.section { padding: 3rem 2rem; }
.section-dark { background: var(--bg-surface); }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-title { font-size: 2rem; font-weight: 700; text-align: center; margin-bottom: 0.5rem; }
.section-sub { text-align: center; color: var(--text-dim); font-size: 1.1rem; margin-bottom: 3rem; }

/* ---- Problem / Solution ---- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.col { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
.col h2 { font-size: 1.5rem; margin-bottom: 1rem; }
.col p { color: var(--text-dim); margin-bottom: 1rem; }
.col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.col li { display: flex; align-items: center; gap: 0.6rem; font-size: 0.95rem; }
.icon-bad { color: var(--red); font-weight: 700; }
.icon-good { color: var(--green); font-weight: 700; }

/* ---- Cards ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem; transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.card p { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 0.5rem; }
.card code { color: var(--green); font-size: 0.8rem; }

/* ---- Architecture diagram ---- */
.arch-diagram {
  display: flex; flex-direction: column; align-items: center; gap: 0;
  max-width: 700px; margin: 0 auto;
}
.arch-row { display: flex; gap: 1.5rem; justify-content: center; width: 100%; }
.arch-clients { flex-wrap: wrap; }
.arch-box {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.2rem 1.5rem; text-align: center; flex: 1; min-width: 160px;
}
.arch-box strong { display: block; font-size: 0.95rem; margin-bottom: 0.2rem; }
.arch-box span { font-size: 0.8rem; color: var(--text-dim); }
.arch-box-icon { font-size: 1.5rem; margin-bottom: 0.4rem; }
.arch-server { border-color: var(--accent); }
.arch-arrow {
  display: flex; flex-direction: column; align-items: center; gap: 0;
  padding: 0.2rem 0;
}
.arch-arrow svg { display: block; }
.arch-arrow-label {
  color: var(--text-muted); font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
}

/* ---- Tools list ---- */
.tools-list { max-width: 700px; margin: 0 auto; }
.tool-group-wide {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem 2rem;
}
.tool-group-wide ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.tool-group-wide li {
  display: flex; align-items: baseline; gap: 1rem;
  font-size: 0.9rem; padding: 0.3rem 0;
  border-bottom: 1px solid rgba(42, 45, 62, 0.5);
}
.tool-group-wide li:last-child { border-bottom: none; }
.tool-group-wide li strong { font-family: var(--mono); font-size: 0.85rem; color: var(--accent); min-width: 160px; }
.tool-group-wide li span { color: var(--text-dim); }

/* ---- Demo placeholders ---- */
.demo-container { max-width: 900px; margin: 0 auto; }
.demo-gif { max-width: 100%; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3); }
.demo-placeholder {
  background: var(--bg-card); border: 1px dashed var(--border);
  border-radius: var(--radius); padding: 3rem 2rem; text-align: center;
}
.demo-placeholder-icon { font-size: 2.5rem; margin-bottom: 0.8rem; }
.demo-placeholder p { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 0.5rem; }
.demo-placeholder-note { font-family: var(--mono); font-size: 0.75rem; color: var(--text-muted); }

/* ---- Footer ---- */
.footer { border-top: 1px solid var(--border); padding: 2rem; }
.footer-inner {
  max-width: 1100px; margin: 0 auto; display: flex;
  justify-content: space-between; align-items: center;
}
.footer-left { display: flex; align-items: center; gap: 0.5rem; color: var(--text-muted); font-size: 0.9rem; }
.footer-sep { color: var(--border); }
.footer-right { display: flex; gap: 1.5rem; }
.footer-right a { color: var(--text-muted); font-size: 0.9rem; }
.footer-right a:hover { color: var(--text); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .hero h1 { font-size: 2.4rem; }
  .cards { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .two-col { gap: 2rem; }
}

@media (max-width: 768px) {
  .hero { padding: 7rem 1.5rem 3rem; }
  .hero h1 { font-size: 1.8rem; }
  .hero-sub { font-size: 0.95rem; }
  .hero-badges { flex-direction: column; gap: 0.75rem; }
  .hero-works-with { flex-direction: column; gap: 0.5rem; }
  .client-pills { flex-wrap: wrap; justify-content: center; }
  .install-box { font-size: 0.7rem; padding: 0.6rem 0.8rem; }
  .install-box code { word-break: break-all; white-space: normal; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: var(--bg-surface);
    border-bottom: 1px solid var(--border); padding: 1rem 2rem; gap: 0.8rem;
  }
  .nav-toggle { display: block; }
  .section { padding: 3rem 1.5rem; }
  .two-col { grid-template-columns: 1fr; gap: 1.5rem; }
  .arch-row { flex-direction: column; align-items: center; }
  .arch-box { max-width: 100%; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .col { padding: 1.5rem; }
  .card { padding: 1.5rem; }
  .tool-group-wide li { flex-direction: column; gap: 0.2rem; }
  .tool-group-wide li strong { min-width: unset; }
}