/* 192.AI marketing site — matches the desktop app palette (src/app.css) */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --bg2: #1a1d27;
  --bg3: #22263a;
  --border: #2e3350;
  --accent: #5b7fff;
  --accent-hover: #7a99ff;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --text: #e2e8f0;
  --text2: #94a3b8;
  --text3: #64748b;
  --radius: 10px;
  --maxw: 1080px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ─── Nav ─── */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
}
.logo img { width: 28px; height: 28px; border-radius: 6px; }
.logo .dot { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text2); font-size: 15px; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links .btn { padding: 8px 18px; font-size: 14px; }

/* ─── Buttons ─── */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--text); }
.btn-block { display: block; width: 100%; text-align: center; }

/* ─── Hero ─── */
.hero {
  padding: 96px 0 72px;
  text-align: center;
  background:
    radial-gradient(ellipse 800px 400px at 50% -10%, rgba(91, 127, 255, 0.15), transparent);
}
.hero .badge {
  display: inline-block;
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text2);
  background: var(--bg2);
  margin-bottom: 28px;
}
.hero .badge .pulse {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  margin-right: 8px;
}
.hero h1 {
  font-size: 52px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -1.5px;
  max-width: 780px;
  margin: 0 auto 20px;
}
.hero h1 .accent { color: var(--accent); }
.hero p.sub {
  font-size: 20px;
  color: var(--text2);
  max-width: 640px;
  margin: 0 auto 36px;
}
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .platforms { margin-top: 22px; font-size: 14px; color: var(--text3); }

/* ─── Sections ─── */
section { padding: 72px 0; }
section.alt { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: 34px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 12px; }
.section-head p { color: var(--text2); font-size: 17px; }

/* ─── Feature grid ─── */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
section.alt .card { background: var(--bg3); }
.card .icon { font-size: 26px; margin-bottom: 14px; }
.card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--text2); }

/* ─── How it works ─── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { text-align: center; padding: 26px 20px; }
.step .num {
  width: 44px; height: 44px;
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}
.step h3 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 14.5px; color: var(--text2); }

/* ─── Terminal / diagram panel ─── */
.diagram {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text2);
  overflow-x: auto;
  white-space: pre;
}
.diagram .hl { color: var(--accent); }
.diagram .ok { color: var(--success); }

/* ─── Pricing ─── */
.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.plan {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.plan.featured { border-color: var(--accent); box-shadow: 0 0 40px rgba(91, 127, 255, 0.12); }
.plan .tag {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.plan h3 { font-size: 19px; margin-bottom: 6px; }
.plan .price { font-size: 42px; font-weight: 800; letter-spacing: -1px; }
.plan .price .per { font-size: 15px; font-weight: 500; color: var(--text2); letter-spacing: 0; }
.plan .desc { color: var(--text2); font-size: 14.5px; margin: 8px 0 22px; }
.plan ul { list-style: none; margin-bottom: 28px; flex: 1; }
.plan li {
  padding: 7px 0 7px 28px;
  font-size: 14.5px;
  position: relative;
}
.plan li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
.plan li.dim { color: var(--text3); }
.plan li.dim::before { content: '—'; color: var(--text3); }

/* ─── Mobile notice (downloads page) ─── */
.mobile-note {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 28px;
  box-shadow: 0 0 30px rgba(91, 127, 255, 0.1);
}
.mobile-note[hidden] { display: none; }
.mobile-note .mn-icon { font-size: 28px; line-height: 1.2; }
.mobile-note strong { font-size: 16px; }
.mobile-note p { color: var(--text2); font-size: 14.5px; margin: 6px 0 14px; }
.mobile-note .btn { padding: 10px 18px; font-size: 14px; }

/* ─── Downloads ─── */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.dl-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}
.dl-card .os-icon { font-size: 40px; margin-bottom: 14px; }
.dl-card h3 { font-size: 19px; margin-bottom: 4px; }
.dl-card .meta { color: var(--text3); font-size: 13.5px; margin-bottom: 22px; }
.dl-card .btn { margin-bottom: 10px; }
.dl-card .alt-link { display: block; font-size: 13.5px; color: var(--text2); }
.dl-version { text-align: center; color: var(--text3); font-size: 14px; margin-top: 32px; }

/* ─── FAQ ─── */
.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
  margin-bottom: 12px;
  padding: 0 22px;
}
.faq summary {
  cursor: pointer;
  padding: 18px 0;
  font-weight: 600;
  font-size: 16px;
  list-style: none;
  position: relative;
}
.faq summary::after {
  content: '+';
  position: absolute;
  right: 0;
  color: var(--text3);
  font-size: 20px;
}
.faq details[open] summary::after { content: '–'; }
.faq details p { padding: 0 0 18px; color: var(--text2); font-size: 15px; }

/* ─── CTA band ─── */
.cta-band {
  text-align: center;
  padding: 80px 24px;
  background:
    radial-gradient(ellipse 600px 300px at 50% 110%, rgba(91, 127, 255, 0.15), transparent);
}
.cta-band h2 { font-size: 34px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 14px; }
.cta-band p { color: var(--text2); margin-bottom: 30px; font-size: 17px; }

/* ─── Footer ─── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--bg2);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-inner .copy { color: var(--text3); font-size: 14px; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--text2); font-size: 14px; }
.footer-links a:hover { color: var(--text); }

/* ─── Responsive ─── */
@media (max-width: 860px) {
  .hero h1 { font-size: 36px; }
  .hero p.sub { font-size: 17px; }
  .grid, .steps, .plans, .dl-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 18px; }
  .nav-links a:not(.btn) { display: none; }
  section { padding: 52px 0; }
}