/* ============================================================
   SightBricks — Website Styles
   ============================================================ */

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

:root {
  --bg:         #03080f;
  --bg-2:       #060e1e;
  --bg-card:    rgba(6, 16, 38, 0.80);
  --border:     rgba(56, 120, 255, 0.15);
  --border-glow:rgba(56, 120, 255, 0.42);
  --blue-1:     #3b82f6;
  --blue-2:     #6366f1;
  --blue-3:     #60a5fa;
  --blue-neon:  #38bdf8;
  --green-neon: #4ade80;
  --purple:     #a855f7;
  --text-1:     #f0f6ff;
  --text-2:     #94a3b8;
  --text-3:     #475569;
  --font:       'Inter', system-ui, sans-serif;
  --mono:       'JetBrains Mono', 'Courier New', monospace;
  --radius:     14px;
  --radius-sm:  8px;
  --shadow:     0 4px 32px rgba(0, 60, 160, 0.2);
  --shadow-glow:0 0 40px rgba(56, 120, 255, 0.18);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.03em; }

.gradient-text {
  background: linear-gradient(135deg, var(--blue-3) 0%, var(--blue-2) 55%, var(--blue-neon) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Background ───────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(56,120,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,120,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none; z-index: 0;
}
body::after {
  content: '';
  position: fixed; top:-30%; left:15%; width:70%; height:65%;
  background: radial-gradient(ellipse, rgba(56,120,255,0.07) 0%, rgba(99,102,241,0.04) 45%, transparent 70%);
  pointer-events: none; z-index: 0;
}
nav, section, footer, .container { position: relative; z-index: 1; }

/* ── Layout ───────────────────────────────────────────────── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-dark { background: var(--bg-2); }

/* ── Label chip ───────────────────────────────────────────── */
.label-chip {
  display: inline-block; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--blue-neon);
  background: rgba(56,186,248,0.08); border: 1px solid rgba(56,186,248,0.22);
  border-radius: 99px; padding: 4px 14px; margin-bottom: 1rem;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; text-decoration: none; cursor: pointer;
  background: linear-gradient(135deg, var(--blue-1), var(--blue-2));
  color: #fff; border: none; box-shadow: 0 0 24px rgba(99,102,241,0.36);
  transition: all 0.2s; white-space: nowrap;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 38px rgba(99,102,241,0.6); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; text-decoration: none; cursor: pointer;
  background: rgba(56,120,255,0.07); color: var(--blue-3);
  border: 1px solid var(--border); transition: all 0.2s; white-space: nowrap;
}
.btn-outline:hover { background: rgba(56,120,255,0.14); border-color: var(--border-glow); transform: translateY(-2px); }

.btn-ghost {
  display: inline-flex; align-items: center; padding: 9px 16px; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 500; text-decoration: none;
  color: var(--text-2); background: transparent; border: none; cursor: pointer; transition: color 0.2s;
}
.btn-ghost:hover { color: var(--text-1); }
.btn-lg { padding: 13px 26px; font-size: 0.95rem; }

/* ── Announcement bar ─────────────────────────────────────── */
.announce-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 9px 20px;
  background: linear-gradient(90deg, rgba(59,130,246,0.15), rgba(99,102,241,0.2), rgba(59,130,246,0.15));
  border-bottom: 1px solid rgba(56,120,255,0.25);
  font-size: 0.82rem; color: var(--text-2);
  backdrop-filter: blur(12px);
}
.announce-dot { width: 6px; height: 6px; background: var(--green-neon); border-radius: 50%; flex-shrink: 0; animation: pulse-dot 2s infinite; }
.announce-bar a { color: var(--blue-3); font-weight: 600; text-decoration: none; }
.announce-bar a:hover { color: var(--blue-neon); }
.announce-close {
  position: absolute; right: 16px; background: none; border: none;
  color: var(--text-3); cursor: pointer; font-size: 0.8rem; padding: 4px 6px;
  transition: color 0.2s;
}
.announce-close:hover { color: var(--text-2); }
.announce-bar.hidden { display: none; }

@keyframes pulse-dot {
  0%,100% { opacity:1; box-shadow: 0 0 0 0 rgba(74,222,128,0.5); }
  50%      { opacity:0.8; box-shadow: 0 0 0 5px rgba(74,222,128,0); }
}

/* ── Nav ──────────────────────────────────────────────────── */
nav {
  position: fixed; top: 40px; left: 0; right: 0; z-index: 100;
  padding: 16px 0; transition: background 0.3s, top 0.3s, padding 0.3s;
}
nav.scrolled {
  top: 0; padding: 12px 0;
  background: rgba(3,7,18,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
nav.no-bar { top: 0; }
.nav-inner {
  max-width: 1180px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; gap: 32px;
}

/* ── Logo (text only) ─────────────────────────────────────── */
.logo { display: inline-flex; align-items: center; text-decoration: none; }
.logo-text { font-family: 'Inter', sans-serif; letter-spacing: -0.04em; }
.logo-sight {
  font-size: 1.2rem; font-weight: 800;
  background: linear-gradient(135deg, #60a5fa, #818cf8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.logo-bricks {
  font-size: 1.2rem; font-weight: 300;
  color: var(--text-1);
}

.nav-links { display: flex; gap: 2px; flex: 1; }
.nav-links a {
  color: var(--text-2); text-decoration: none; font-size: 0.88rem;
  padding: 6px 13px; border-radius: var(--radius-sm); transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text-1); background: rgba(255,255,255,0.05); }
.nav-cta { display: flex; align-items: center; gap: 8px; }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  padding: 6px; margin-left: auto; background: none; border: none;
}
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--text-2); border-radius: 2px; transition: all 0.3s; }
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.mobile-menu {
  display: none; position: fixed; top: 62px; left: 0; right: 0; z-index: 99;
  background: rgba(3,7,18,0.97); backdrop-filter: blur(20px);
  padding: 20px 24px 28px; border-bottom: 1px solid var(--border);
  flex-direction: column; gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { color: var(--text-2); text-decoration: none; font-size: 1rem; padding: 10px 0; border-bottom: 1px solid var(--border); transition: color 0.2s; }
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--text-1); }

/* ── Reveal ───────────────────────────────────────────────── */
.reveal { opacity:0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal-right { opacity:0; transform: translateX(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible, .reveal-right.visible { opacity:1; transform: none; }
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="150"] { transition-delay: 0.15s; }
[data-delay="200"] { transition-delay: 0.2s; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 140px 0 72px; position: relative; overflow: hidden;
}
.hero-glow {
  position: absolute; top: 10%; right: -10%; width: 50%; height: 60%;
  background: radial-gradient(ellipse, rgba(99,102,241,0.1) 0%, transparent 65%);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.75rem; font-weight: 600; color: var(--blue-neon);
  background: rgba(56,186,248,0.08); border: 1px solid rgba(56,186,248,0.25);
  border-radius: 99px; padding: 5px 14px; margin-bottom: 1.5rem;
}
.badge-dot { width: 6px; height: 6px; background: var(--green-neon); border-radius: 50%; flex-shrink: 0; animation: pulse-dot 2s infinite; }
.hero-headline { font-size: clamp(2.4rem, 4.5vw, 3.6rem); font-weight: 800; margin-bottom: 1.2rem; line-height: 1.1; }
.hero-sub { font-size: 1.05rem; color: var(--text-2); max-width: 460px; margin-bottom: 2.4rem; line-height: 1.72; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Demo card ────────────────────────────────────────────── */
.demo-card {
  background: rgba(4,10,26,0.97); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow), var(--shadow-glow);
}
.demo-topbar {
  display: flex; align-items: center; gap: 10px; padding: 11px 16px;
  background: rgba(255,255,255,0.025); border-bottom: 1px solid var(--border);
}
.demo-dots { display: flex; gap: 6px; }
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.red { background: #ff5f57; } .dot.yellow { background: #ffbd2e; } .dot.green { background: #28ca41; }
.demo-title { flex:1; text-align: center; font-size: 0.72rem; color: var(--text-3); font-family: var(--mono); }
.demo-live {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; color: var(--green-neon);
  background: rgba(74,222,128,0.1); border: 1px solid rgba(74,222,128,0.25);
  border-radius: 4px; padding: 2px 7px; font-family: var(--mono);
}
.live-dot { width: 5px; height: 5px; background: var(--green-neon); border-radius: 50%; animation: pulse-dot 1.5s infinite; }

.demo-body { display: grid; grid-template-columns: 1fr 196px; }

/* Left column: feed + events */
.demo-feed-col { display: flex; flex-direction: column; min-width: 0; }

/* Canvas feed */
.demo-feed { position: relative; background: #03080f; aspect-ratio: 16/10; overflow: hidden; width: 100%; flex-shrink: 0; }
#camera-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

/* Policies panel */
.demo-policies { border-left: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden; }
.dp-header { display: flex; align-items: center; justify-content: space-between; padding: 9px 11px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.dp-title { font-size: 0.7rem; font-weight: 700; color: var(--text-2); letter-spacing: 0.05em; }
.dp-add-btn {
  font-size: 0.6rem; font-weight: 700; color: var(--blue-neon);
  background: rgba(56,186,248,0.08); border: 1px solid rgba(56,186,248,0.2);
  border-radius: 4px; padding: 2px 7px; cursor: pointer; font-family: var(--font); transition: background 0.2s;
}
.dp-add-btn:hover { background: rgba(56,186,248,0.16); }
.dp-list { display: flex; flex-direction: column; flex-shrink: 0; }
.dp-policy { padding: 7px 11px; border-bottom: 1px solid var(--border); transition: background 0.2s; }
.dp-policy:hover, .dp-policy.active { background: rgba(56,120,255,0.06); }
.dp-policy-row { display: flex; align-items: center; gap: 5px; margin-bottom: 3px; }
.dp-badge { font-size: 0.53rem; font-weight: 800; letter-spacing: 0.08em; padding: 1px 5px; border-radius: 3px; flex-shrink: 0; }
.dp-badge.det { background: rgba(34,211,238,0.12); color: #22d3ee; border: 1px solid rgba(34,211,238,0.25); }
.dp-badge.qry { background: rgba(168,85,247,0.12); color: #c084fc; border: 1px solid rgba(168,85,247,0.25); }
.dp-name { font-size: 0.68rem; font-weight: 600; color: var(--text-1); flex: 1; }
.dp-toggle { width: 22px; height: 12px; border-radius: 99px; background: rgba(255,255,255,0.1); flex-shrink: 0; position: relative; cursor: pointer; transition: background 0.2s; }
.dp-toggle.on { background: rgba(74,222,128,0.3); border: 1px solid rgba(74,222,128,0.4); }
.dp-toggle::after { content: ''; position: absolute; top: 1.5px; left: 1.5px; width: 9px; height: 9px; border-radius: 50%; background: var(--text-3); transition: transform 0.2s, background 0.2s; }
.dp-toggle.on::after { transform: translateX(10px); background: var(--green-neon); }
.dp-query-text { font-size: 0.6rem; color: var(--text-3); font-family: var(--mono); padding-left: 24px; }
.dp-industry-tag { color: var(--blue-1); font-size: 0.55rem; letter-spacing: 0.06em; text-transform: uppercase; padding-bottom: 1px; }
/* ── Events table (below canvas feed) ────────────────────── */
.demo-events-strip {
  border-top: 1px solid var(--border);
  background: rgba(2,6,16,0.95);
  overflow: hidden;
}
.det-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.62rem; font-family: var(--mono);
}
.det-table thead tr {
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.025);
}
.det-table th {
  text-align: left; padding: 5px 12px;
  font-size: 0.52rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-3);
}
.det-row {
  border-bottom: 1px solid rgba(56,120,255,0.07);
  animation: row-in 0.25s ease;
}
.det-row:last-child { border-bottom: none; }
.det-row:nth-child(odd) { background: rgba(255,255,255,0.015); }
@keyframes row-in { from { opacity:0; transform: translateY(-3px); } to { opacity:1; transform: none; } }
.det-ts  { padding: 5px 12px; color: var(--text-3); white-space: nowrap; width: 68px; }
.det-tag { padding: 5px 10px; white-space: nowrap; width: 48px; }
.det-val { padding: 5px 12px; color: var(--text-2); }
.det-ans { color: var(--green-neon); margin-left: 4px; }
/* shared badge styles also used by policies sidebar */
.dp-event-tag { font-size: 0.5rem; font-weight: 700; padding: 1px 5px; border-radius: 3px; }
.dp-event-tag.det { color: #22d3ee; background: rgba(34,211,238,0.12); border: 1px solid rgba(34,211,238,0.2); }
.dp-event-tag.qry { color: #c084fc; background: rgba(168,85,247,0.12); border: 1px solid rgba(168,85,247,0.2); }

/* ── Section header ───────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: clamp(1.9rem, 3.5vw, 2.9rem); font-weight: 800; margin-bottom: 0.9rem; }
.section-sub { font-size: 1.02rem; color: var(--text-2); max-width: 540px; margin: 0 auto; line-height: 1.68; }

/* ── Policy type cards ────────────────────────────────────── */
.policy-types-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.policy-type-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; backdrop-filter: blur(12px); position: relative; overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.policy-type-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-4px); }
.pt-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 16px; }
.pt-badge { display: inline-block; font-size: 0.65rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 12px; border-radius: 6px; }
.det-badge { background: rgba(34,211,238,0.12); color: #22d3ee; border: 1px solid rgba(34,211,238,0.28); }
.qry-badge { background: rgba(168,85,247,0.12); color: #c084fc; border: 1px solid rgba(168,85,247,0.28); }
.pt-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); }
.det-icon { background: rgba(34,211,238,0.08); color: #22d3ee; }
.qry-icon { background: rgba(168,85,247,0.08); color: #c084fc; }
.policy-type-card h3 { font-size: 1.3rem; font-weight: 800; margin-bottom: 10px; }
.pt-desc { font-size: 0.9rem; color: var(--text-2); line-height: 1.68; margin-bottom: 20px; }
.pt-example { margin-bottom: 20px; }
.pt-example-label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); margin-bottom: 8px; }
.pt-example-box { background: rgba(0,0,0,0.35); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; display: flex; flex-direction: column; gap: 7px; font-family: var(--mono); font-size: 0.76rem; }
.pex-row { display: flex; gap: 12px; }
.pex-key { width: 56px; flex-shrink: 0; color: var(--text-3); }
.pex-val { color: var(--text-1); }
.det-val { color: #22d3ee; } .qry-val { color: #c084fc; } .ans-val { color: var(--green-neon); } .fire-val { color: #ef4444; }
.pt-features { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.pt-features li { display: flex; align-items: flex-start; gap: 8px; font-size: 0.85rem; color: var(--text-2); }
.pt-features li::before { content: '✓'; color: var(--blue-neon); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.pt-visual { border-top: 1px solid var(--border); padding-top: 20px; }
.pt-scene { position: relative; background: #070d1a; border: 1px solid var(--border); border-radius: 8px; height: 130px; overflow: hidden; }
.pt-scene-bg { position: absolute; inset: 0; background: linear-gradient(180deg, #08111e 0%, #0c1828 55%, #060d18 100%); }
.pt-floor { position: absolute; bottom: 22%; left: 0; right: 0; height: 1px; background: rgba(30,50,80,0.6); }

/* Bounding boxes */
.pt-bbox { position: absolute; border: 2px solid #ef4444; border-radius: 3px; top: 10%; left: 5%; width: 22%; height: 78%; animation: bbox-pulse-fire 3s ease-in-out infinite; overflow: hidden; }
.pt-bbox-fire { border-color: #ef4444; }
.pt-bbox-2 { top: 18%; left: 34%; width: 44%; height: 56%; animation-delay: 1s; overflow: hidden; }
.pt-bbox-smoke { border-color: #fb923c; animation-name: bbox-pulse-smoke; }
@keyframes bbox-pulse-fire  { 0%,100%{opacity:1} 50%{opacity:0.7; box-shadow:0 0 12px 2px rgba(239,68,68,0.4)} }
@keyframes bbox-pulse-smoke { 0%,100%{opacity:1} 50%{opacity:0.7; box-shadow:0 0 10px 2px rgba(251,146,60,0.35)} }
.pt-bbox-label { position: absolute; top: -19px; left: -2px; font-size: 0.56rem; font-weight: 700; font-family: var(--mono); padding: 1px 6px; border-radius: 3px; white-space: nowrap; z-index: 2; }
.pt-bbox-label-fire  { color: #ef4444; background: rgba(239,68,68,0.14); border: 1px solid rgba(239,68,68,0.4); }
.pt-bbox-label-smoke { color: #fb923c; background: rgba(251,146,60,0.14); border: 1px solid rgba(251,146,60,0.4); }

/* ── Fire visual ──────────────────────────────────────────── */
.pt-fire-vis { position: absolute; inset: 0; display: flex; align-items: flex-end; justify-content: center; }
.pt-fire-glow {
  position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 70%; height: 40%; border-radius: 50%;
  background: radial-gradient(ellipse at 50% 100%, rgba(255,140,20,0.7) 0%, rgba(220,60,0,0.35) 50%, transparent 100%);
  animation: fire-glow-pulse 0.7s ease-in-out infinite alternate;
}
@keyframes fire-glow-pulse { from { opacity: 0.7; transform: translateX(-50%) scaleX(0.9); } to { opacity: 1; transform: translateX(-50%) scaleX(1.1); } }
.pt-flame {
  position: absolute; bottom: 10%; border-radius: 50% 50% 30% 30% / 60% 60% 40% 40%;
  transform-origin: 50% 100%;
  animation: flame-flicker 0.5s ease-in-out infinite alternate;
}
.pt-flame-1 {
  width: 38%; height: 70%; left: 50%; transform: translateX(-50%);
  background: linear-gradient(to top, rgba(255,220,60,1) 0%, rgba(255,120,10,0.9) 40%, rgba(200,40,0,0.5) 75%, transparent 100%);
  animation-duration: 0.6s; animation-delay: 0s;
}
.pt-flame-2 {
  width: 24%; height: 52%; left: 28%;
  background: linear-gradient(to top, rgba(255,170,20,0.9) 0%, rgba(220,70,0,0.7) 50%, transparent 100%);
  animation-duration: 0.45s; animation-delay: 0.1s;
}
.pt-flame-3 {
  width: 24%; height: 48%; right: 24%;
  background: linear-gradient(to top, rgba(255,150,10,0.85) 0%, rgba(200,50,0,0.6) 50%, transparent 100%);
  animation-duration: 0.52s; animation-delay: 0.22s;
}
@keyframes flame-flicker {
  from { transform: translateX(-50%) scaleX(0.92) scaleY(1.05) rotate(-2deg); }
  to   { transform: translateX(-50%) scaleX(1.08) scaleY(0.95) rotate(2deg);  }
}
.pt-flame-2, .pt-flame-3 { transform: none; }
@keyframes flame-flicker-side {
  from { transform: scaleX(0.9) scaleY(1.06) rotate(-3deg); }
  to   { transform: scaleX(1.1) scaleY(0.94) rotate(3deg);  }
}
.pt-flame-2 { animation-name: flame-flicker-side; }
.pt-flame-3 { animation-name: flame-flicker-side; animation-direction: alternate-reverse; }

/* ── Smoke visual ─────────────────────────────────────────── */
.pt-smoke-vis { position: absolute; inset: 0; overflow: hidden; }
.pt-wisp {
  position: absolute; border-radius: 50%;
  animation: wisp-rise 3s ease-in-out infinite;
}
.pt-wisp-1 {
  width: 45%; height: 45%; left: 25%; bottom: 5%;
  background: radial-gradient(circle, rgba(100,100,115,0.65) 0%, rgba(70,70,85,0.3) 50%, transparent 75%);
  animation-delay: 0s; animation-duration: 2.8s;
}
.pt-wisp-2 {
  width: 38%; height: 38%; left: 40%; bottom: 0%;
  background: radial-gradient(circle, rgba(85,85,100,0.55) 0%, rgba(60,60,75,0.25) 50%, transparent 75%);
  animation-delay: 0.9s; animation-duration: 3.2s;
}
.pt-wisp-3 {
  width: 30%; height: 30%; left: 18%; bottom: 15%;
  background: radial-gradient(circle, rgba(75,75,90,0.5) 0%, transparent 70%);
  animation-delay: 1.7s; animation-duration: 2.5s;
}
@keyframes wisp-rise {
  0%   { opacity: 0;   transform: translateY(0)   scale(0.7); }
  30%  { opacity: 0.85; }
  70%  { opacity: 0.6; }
  100% { opacity: 0;   transform: translateY(-60px) scale(1.4); }
}
.pt-qa-wrap { display: flex; flex-direction: column; gap: 8px; }
.pt-qa-card { background: rgba(0,0,0,0.35); border: 1px solid var(--border); border-radius: 8px; padding: 11px 13px; }
.pt-qa-card-2 { opacity: 0.5; }
.pt-qa-q { font-size: 0.72rem; color: var(--text-3); font-family: var(--mono); margin-bottom: 5px; }
.pt-qa-a { font-size: 0.78rem; font-weight: 600; color: var(--green-neon); margin-bottom: 4px; }
.pt-qa-a.green-ans { color: var(--green-neon); }
.pt-qa-ts { font-size: 0.62rem; color: var(--text-3); font-family: var(--mono); }

/* ── Hardware ─────────────────────────────────────────────── */
.hardware-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; }
.hw-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; backdrop-filter: blur(12px); transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s; }
.hw-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-4px); }
.hw-card-jetson { border-color: rgba(74,222,128,0.2); }
.hw-card-jetson:hover { border-color: rgba(74,222,128,0.45); box-shadow: 0 0 40px rgba(74,222,128,0.12); }
.hw-icon-wrap { width: 52px; height: 52px; border-radius: 12px; background: rgba(56,120,255,0.1); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.jetson-icon-wrap { background: rgba(74,222,128,0.08); border-color: rgba(74,222,128,0.2); }
.jetson-tag { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green-neon); background: rgba(74,222,128,0.08); border: 1px solid rgba(74,222,128,0.25); border-radius: 4px; padding: 3px 10px; display: inline-block; margin-bottom: 10px; }
.hw-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.hw-card > p { font-size: 0.88rem; color: var(--text-2); line-height: 1.65; margin-bottom: 18px; }
.hw-list { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.hw-list li { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--text-2); }
.hw-chip { font-size: 0.6rem; font-weight: 800; letter-spacing: 0.08em; padding: 2px 7px; border-radius: 4px; flex-shrink: 0; background: rgba(56,120,255,0.1); color: var(--blue-3); border: 1px solid rgba(56,120,255,0.2); }
.jetson-specs { display: flex; align-items: center; background: rgba(0,0,0,0.3); border: 1px solid rgba(74,222,128,0.15); border-radius: 8px; padding: 14px 0; margin-bottom: 18px; }
.jspec { flex: 1; text-align: center; }
.jspec-num { display: block; font-size: 1.2rem; font-weight: 800; color: var(--green-neon); letter-spacing: -0.03em; }
.jspec-lbl { font-size: 0.66rem; color: var(--text-3); margin-top: 2px; display: block; }
.jspec-div { width: 1px; height: 32px; background: rgba(74,222,128,0.15); flex-shrink: 0; }
.hw-arrow { display: flex; align-items: center; justify-content: center; flex-shrink: 0; padding: 0 8px; }
.hw-arrow-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.hw-arrow-label { font-size: 0.68rem; color: var(--text-3); white-space: nowrap; }

/* ── Architecture ─────────────────────────────────────────── */
.arch-pipeline { display: flex; align-items: center; margin-bottom: 64px; }
.arch-layer { flex: 1; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 14px 20px; text-align: center; transition: all 0.25s; }
.arch-layer:hover { border-color: var(--border-glow); box-shadow: 0 0 24px rgba(56,120,255,0.12); transform: translateY(-4px); }
.arch-icon { width: 40px; height: 40px; background: rgba(56,120,255,0.1); border: 1px solid var(--border); border-radius: 10px; display: flex; align-items: center; justify-content: center; margin: 0 auto 10px; color: var(--blue-3); }
.arch-label { font-size: 0.62rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue-neon); margin-bottom: 3px; }
.arch-title { font-size: 0.82rem; font-weight: 700; margin-bottom: 5px; }
.arch-desc { font-size: 0.68rem; color: var(--text-3); line-height: 1.5; }
.arch-arrow { flex-shrink: 0; padding: 0 4px; display: flex; align-items: center; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: all 0.25s; }
.step-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-3px); }
.step-num { font-size: 2.4rem; font-weight: 900; line-height: 1; margin-bottom: 12px; background: linear-gradient(135deg, var(--blue-1), var(--blue-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.step-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 0.85rem; color: var(--text-2); line-height: 1.65; }

/* ── Split grid ───────────────────────────────────────────── */
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split-grid.reverse { direction: rtl; }
.split-grid.reverse > * { direction: ltr; }
.split-content h2 { font-size: clamp(1.65rem, 2.8vw, 2.2rem); font-weight: 800; margin-bottom: 1rem; }
.split-content p { color: var(--text-2); font-size: 0.94rem; line-height: 1.72; margin-bottom: 0.8rem; }
.check-list { list-style: none; margin-top: 1.5rem; display: flex; flex-direction: column; gap: 10px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.87rem; color: var(--text-2); }
.check-list li::before { content: '✓'; color: var(--blue-neon); font-weight: 700; flex-shrink: 0; margin-top: 2px; }
.divider { height: 1px; background: var(--border); margin: 80px 0; }
.cloud-diagram { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; display: flex; align-items: center; gap: 16px; box-shadow: var(--shadow); }
.cd-edge, .cd-cloud { display: flex; flex-direction: column; align-items: center; gap: 7px; font-size: 0.76rem; color: var(--text-2); flex-shrink: 0; }
.cd-dot { width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; }
.cd-dot.blue { background: rgba(59,130,246,0.12); } .cd-dot.cyan { background: rgba(56,186,248,0.1); }
.cd-dot.blue::after { content: '🖥️'; font-size: 18px; } .cd-dot.cyan::after { content: '☁️'; font-size: 18px; }
.cd-arrows { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.cd-flow { display: flex; flex-direction: column; gap: 6px; width: 100%; }
.cd-pill { background: rgba(56,120,255,0.07); border: 1px solid var(--border); border-radius: 6px; padding: 4px 10px; font-size: 0.7rem; color: var(--blue-3); text-align: center; font-family: var(--mono); }
.cd-arrow-svg { width: 100%; max-width: 80px; height: 16px; }
.finetune-visual { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.ft-step { display: flex; align-items: center; gap: 16px; }
.ft-num { width: 30px; height: 30px; background: linear-gradient(135deg, var(--blue-1), var(--blue-2)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.72rem; font-weight: 800; color: #fff; flex-shrink: 0; }
.ft-text { font-size: 0.87rem; color: var(--text-2); }
.ft-connector { width: 2px; height: 22px; background: linear-gradient(180deg, var(--blue-1), var(--blue-2)); border-radius: 1px; margin: 4px 0 4px 14px; }

/* ── Early access section ─────────────────────────────────── */
.access-section {
  position: relative;
  background: linear-gradient(160deg, rgba(6,14,28,0.95) 0%, rgba(10,18,36,0.95) 100%);
  border-top: 1px solid var(--border);
}
.access-glow {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(56,120,255,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.access-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.access-left h2 { font-size: clamp(1.9rem, 3.2vw, 2.8rem); font-weight: 800; margin-bottom: 1rem; }
.access-left > p { font-size: 0.95rem; color: var(--text-2); line-height: 1.72; margin-bottom: 2rem; }
.access-points { list-style: none; display: flex; flex-direction: column; gap: 18px; }
.access-points li { display: flex; align-items: flex-start; gap: 14px; }
.ap-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 2px; }
.access-points strong { display: block; font-size: 0.9rem; font-weight: 700; color: var(--text-1); margin-bottom: 2px; }
.access-points span { font-size: 0.83rem; color: var(--text-3); }

/* Form */
.ea-form {
  background: rgba(6,14,32,0.8); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
  backdrop-filter: blur(12px);
  display: flex; flex-direction: column; gap: 20px;
}
.ea-field-group { display: flex; flex-direction: column; gap: 7px; }
.ea-field-group label { font-size: 0.8rem; font-weight: 600; color: var(--text-2); }
.ea-field-group input,
.ea-field-group textarea {
  padding: 13px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1); font-size: 0.9rem; font-family: var(--font);
  outline: none; transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
}
.ea-field-group input::placeholder,
.ea-field-group textarea::placeholder { color: var(--text-3); }
.ea-field-group input:focus,
.ea-field-group textarea:focus { border-color: var(--border-glow); box-shadow: 0 0 0 3px rgba(56,120,255,0.1); }
.ea-submit {
  padding: 15px 28px;
  background: linear-gradient(135deg, var(--blue-1), var(--blue-2));
  color: #fff; font-size: 0.95rem; font-weight: 700; font-family: var(--font);
  border: none; border-radius: var(--radius-sm); cursor: pointer;
  box-shadow: 0 0 28px rgba(99,102,241,0.4);
  transition: all 0.2s; text-align: center;
}
.ea-submit:hover { transform: translateY(-2px); box-shadow: 0 0 40px rgba(99,102,241,0.6); }
.ea-submit:disabled { opacity: 0.7; cursor: default; transform: none; }
.ea-note { font-size: 0.75rem; color: var(--text-3); text-align: center; margin-top: -4px; }
.ea-success {
  display: none; text-align: center; padding: 24px;
  color: var(--green-neon); font-size: 1rem; font-weight: 600;
}
.ea-success.show { display: block; }
.ea-error { font-size: 0.78rem; color: #f87171; text-align: center; display: none; }
.ea-error.show { display: block; }

/* ── Footer ───────────────────────────────────────────────── */
footer { padding: 56px 0 0; border-top: 1px solid var(--border); }
.footer-inner { display: grid; grid-template-columns: 1.8fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-brand p { font-size: 0.84rem; color: var(--text-3); line-height: 1.65; margin-top: 10px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); margin-bottom: 4px; }
.footer-col a { color: var(--text-2); text-decoration: none; font-size: 0.84rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--blue-3); }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; font-size: 0.78rem; color: var(--text-3); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { color: var(--text-3); text-decoration: none; transition: color 0.2s; }
.footer-legal a:hover { color: var(--text-2); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hardware-grid { grid-template-columns: 1fr; }
  .hw-arrow { display: none; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .section { padding: 72px 0; }
  nav { top: 36px; }
  nav.scrolled { top: 0; }
  .announce-bar { font-size: 0.72rem; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .hero { padding: 130px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-headline { font-size: 2.2rem; }
  .hero-demo { width: 100%; min-width: 0; }
  .demo-card { width: 100%; min-width: 0; overflow: hidden; }
  .demo-body { grid-template-columns: 1fr; }
  .demo-feed { aspect-ratio: 16/10; min-height: 180px; }
  .demo-policies { display: none; }
  .det-table { font-size: 0.58rem; }
  .det-ts, .det-tag, .det-val { padding: 4px 8px; }
  .det-table th { padding: 4px 8px; }
  .policy-types-grid { grid-template-columns: 1fr; }
  .split-grid, .split-grid.reverse { grid-template-columns: 1fr; direction: ltr; gap: 40px; }
  .steps-grid { grid-template-columns: 1fr; }
  .arch-pipeline { flex-direction: column; gap: 8px; }
  .arch-arrow { display: none; }
  .access-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom-inner { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 480px) {
  .footer-links { grid-template-columns: 1fr; }
  .announce-bar span:first-of-type { display: none; }
}