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

:root {
  --bg:         #0a0a0f;
  --bg-2:       #0f0f18;
  --bg-card:    #12121e;
  --bg-input:   #1a1a2e;
  --border:     #1e1e35;
  --border-2:   #2a2a45;
  --text:       #e8e8f0;
  --text-sub:   #8888aa;
  --text-dim:   #555577;
  --accent:     #7c6fff;
  --accent-2:   #a78bfa;
  --accent-glow:#7c6fff44;
  --green:      #22d3a0;
  --red:        #f87171;
  --yellow:     #fbbf24;
  --code-bg:    #0d0d1a;
  --radius:     12px;
  --radius-sm:  8px;
  --font:       'Inter', system-ui, sans-serif;
  --mono:       'JetBrains Mono', 'Fira Code', monospace;
  --shadow:     0 4px 24px #00000055;
  --shadow-lg:  0 8px 48px #00000077;
}

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-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── NAV ──────────────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--text-sub);
  font-size: 0.9rem;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
.btn-nav {
  background: var(--accent);
  color: #fff !important;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.85rem;
  transition: background 0.15s, transform 0.1s;
}
.btn-nav:hover { background: var(--accent-2); transform: translateY(-1px); }

/* ── HERO ─────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  padding: 100px 24px 80px;
  text-align: center;
}
.hero-inner { max-width: 760px; margin: 0 auto; position: relative; z-index: 1; }
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--border-2);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-sub);
  margin-bottom: 28px;
  background: var(--bg-card);
}

h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.accent { color: var(--accent-2); }

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-sub);
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-n {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-2);
  line-height: 1;
}
.stat-l {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ── BUTTONS ──────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--accent-2);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
  text-decoration: none;
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--border-2);
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
  text-decoration: none;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--text); text-decoration: none; }
.btn-sm { padding: 7px 14px; font-size: 0.85rem; }

/* ── SECTIONS ─────────────────────────────────────────────────────────── */
.section { padding: 80px 24px; }
.section-dark { background: var(--bg-2); }
.container { max-width: 1100px; margin: 0 auto; }

h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.section-sub {
  color: var(--text-sub);
  font-size: 1rem;
  margin-bottom: 48px;
  max-width: 620px;
}

/* ── DEMO BOX ─────────────────────────────────────────────────────────── */
.demo-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

.demo-input-row {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
.demo-input-row input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s;
}
.demo-input-row input:focus { border-color: var(--accent); }
.demo-input-row input::placeholder { color: var(--text-dim); }

.demo-options {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.option-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-sub);
  cursor: pointer;
}
.option-label select {
  background: var(--bg-input);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
}

/* Toggle */
.toggle-label { gap: 10px; }
.toggle-label input[type="checkbox"] { display: none; }
.toggle-track {
  width: 40px;
  height: 22px;
  background: var(--border-2);
  border-radius: 999px;
  position: relative;
  transition: background 0.2s;
  cursor: pointer;
  display: inline-block;
}
.toggle-label input:checked ~ .toggle-track { background: var(--accent); }
.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle-label input:checked ~ .toggle-track .toggle-thumb { transform: translateX(18px); }

.demo-output {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.demo-placeholder { text-align: center; color: var(--text-dim); padding: 40px; }
.placeholder-icon { font-size: 3rem; margin-bottom: 16px; }
.placeholder-sub { font-size: 0.85rem; margin-top: 6px; }

.demo-loading { text-align: center; color: var(--text-sub); padding: 40px; }
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

#demo-image {
  max-width: 100%;
  max-height: 600px;
  border-radius: var(--radius-sm);
  display: block;
}

.demo-error { text-align: center; padding: 40px; color: var(--red); }
.demo-error p { margin-bottom: 16px; }

.demo-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.demo-note {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-left: auto;
}

/* ── FEATURES ─────────────────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.2s, transform 0.15s;
}
.feature-card:hover { border-color: var(--border-2); transform: translateY(-2px); }
.feature-icon { font-size: 1.6rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-sub); line-height: 1.55; }
.feature-code {
  margin-top: 14px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  overflow-x: auto;
}
.feature-code code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent-2);
}

/* ── HARDWARE ─────────────────────────────────────────────────────────── */
.hw-table-wrap { overflow-x: auto; margin-bottom: 28px; }
.hw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.hw-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  color: var(--text-sub);
  font-weight: 500;
}
.hw-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.hw-table tr:last-child td { border-bottom: none; }
.hw-min td { color: var(--text-sub); }
.hw-good td:first-child { color: var(--green); }
.mode-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  background: var(--bg-input);
  border: 1px solid var(--border-2);
  font-family: var(--mono);
}
.mode-apple { border-color: var(--green); color: var(--green); }
.mode-fast  { border-color: var(--accent); color: var(--accent-2); }

.apple-note {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  font-size: 0.9rem;
  color: var(--text-sub);
}
.apple-icon { font-size: 1.4rem; flex-shrink: 0; }
.apple-note strong { color: var(--text); }

/* ── INSTALL ──────────────────────────────────────────────────────────── */
.install-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.tab-btn {
  background: none;
  border: none;
  color: var(--text-sub);
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 10px 18px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent-2); border-bottom-color: var(--accent); }

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 22px;
  overflow-x: auto;
  margin-bottom: 16px;
}
pre code {
  font-family: var(--mono);
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.7;
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent-2);
}
pre code { background: none; border: none; padding: 0; }

.install-then { color: var(--text-sub); font-size: 0.9rem; }
.install-note { color: var(--yellow); font-size: 0.88rem; margin-top: -8px; }
.install-steps { color: var(--text-sub); font-size: 0.9rem; padding-left: 20px; line-height: 2; }
.install-optional {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.install-optional h3 { font-size: 1rem; margin-bottom: 8px; }
.install-optional p { color: var(--text-sub); font-size: 0.9rem; margin-bottom: 16px; }

/* ── ERRORS ───────────────────────────────────────────────────────────── */
.errors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.error-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.error-title {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--red);
  margin-bottom: 10px;
  font-weight: 500;
}
.error-fix { font-size: 0.88rem; color: var(--text-sub); line-height: 1.5; }

/* ── FOOTER ───────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-left { display: flex; align-items: center; gap: 12px; }
.footer-logo { font-weight: 600; font-size: 0.95rem; }
.footer-by { font-size: 0.85rem; color: var(--text-dim); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.85rem; color: var(--text-dim); }
.footer-links a:hover { color: var(--text-sub); text-decoration: none; }
.footer-right { font-size: 0.8rem; color: var(--text-dim); }

/* ── FEATURE CARD BADGES ─────────────────────────────────────────────── */
.feature-card { position: relative; }
.feature-deploy-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #1a1a2e;
  border: 1px solid var(--border-2);
  color: var(--text-dim);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.feature-card-new {
  border-color: var(--accent);
  border-width: 1px;
}
.feature-new-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* ── SYSTEM BOUNDARY ─────────────────────────────────────────────────── */
.demo-system-boundary {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.boundary-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1;
  min-width: 220px;
}
.boundary-icon { font-size: 1.4rem; line-height: 1; margin-top: 2px; }
.boundary-item strong { display: block; font-size: 0.9rem; color: var(--text); }
.boundary-item span { font-size: 0.78rem; color: var(--text-dim); line-height: 1.4; }
.boundary-item a { color: var(--text-sub); }
.boundary-separator {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  padding: 0 4px;
  align-self: center;
}
.boundary-full strong { color: var(--green); }
.option-hint { font-size: 0.72rem; color: var(--text-dim); margin-left: 4px; font-weight: 400; }

/* ── INSTALL WARNING ─────────────────────────────────────────────────── */
.install-warning {
  background: #2d1a00;
  border: 1px solid #e67e2244;
  border-left: 3px solid #e67e22;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: #ffa040;
  margin-bottom: 16px;
}

/* ── DOCS GRID ────────────────────────────────────────────────────────── */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.docs-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.docs-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.docs-card p {
  font-size: 0.84rem;
  color: var(--text-sub);
  line-height: 1.55;
  margin-bottom: 12px;
}
.docs-link {
  font-size: 0.83rem;
  color: var(--accent-2);
  font-weight: 500;
}
.docs-link:hover { text-decoration: underline; }
.docs-link-primary {
  background: var(--accent);
  color: #fff;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  display: inline-block;
}
.docs-link-primary:hover { background: var(--accent-2); text-decoration: none; }

/* ── RESPONSIVE ───────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .nav-links { gap: 16px; }
  .nav-links a:not(.btn-nav) { display: none; }
  .demo-input-row { flex-direction: column; }
  .hero-stats { gap: 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .demo-actions { flex-direction: column; align-items: flex-start; }
  .demo-note { margin-left: 0; }
}