*, *::before, *::after { box-sizing: border-box; }
:root {
  /* AI palette: indigo → purple with cyan accent */
  --primary: #4f46e5; /* indigo-600 */
  --primary-2: #9333ea; /* purple-600 */
  --accent: #06b6d4; /* cyan-500 */
  --bg: #f3f4fa; /* light, not white */
  --bg-alt-1: #f6f7ff; /* very light tint */
  --bg-alt-2: #eef1ff; /* second light tint */
  --ink: #0b0f1a;
  --muted: #5a6678;
  --radius: 12px;
  --hairline: rgba(79,70,229,.16);
  /* Form tokens */
  --form-font-size: 13px;
  --form-line-height: 1.25;
  --form-control-padding-y: 12px;
  --form-control-padding-x: 12px;
  --form-border: 1px solid rgba(79,70,229,.18);
  --form-border-focus: rgba(79,70,229,.45);
  --form-shadow-focus: 0 0 0 3px rgba(79,70,229,.12);
  --form-bg: #ffffff;
  --form-fg: #1a2233;
  --form-muted: #a9a9a9; /* placeholder override */
  --select-arrow-size: 12px;
  --select-arrow-right: 10px;
}

html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--ink); line-height: 1.5; }
a { color: inherit; text-decoration: none; }

.container { width: min(1200px, 94vw); margin: 0 auto; }
.section { padding: clamp(36px, 4vw, 72px) 0; position: relative; }
.section + .section::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--hairline), transparent); }

.headline { font-family: Outfit, Inter, sans-serif; font-weight: 800; font-size: clamp(32px, 5vw, 56px); line-height: 1.06; }
.headline.gradient { background: linear-gradient(135deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub { font-size: clamp(14px, 1.8vw, 18px); color: #2a3342; max-width: 62ch; letter-spacing: .1px; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 16px; border-radius: var(--radius); font-weight: 700; border: 0; cursor: pointer; transition: transform .15s ease, box-shadow .2s ease; }
.btn.primary { color: #fff; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 2px 5px rgba(0,0,0,.12); }
.btn.ghost { background: transparent; color: var(--primary); border: 1px solid rgba(79,70,229,.3); }

/* Nav */
nav { position: sticky; top: 0; background: rgba(243,244,250,.95); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(79,70,229,.15); z-index: 50; }
nav .nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 6px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--primary); font-family: Outfit, Inter, sans-serif; font-size: clamp(16px, 1.6vw, 20px); letter-spacing: 0.2px; }
.brand img { height: 1.15em; width: auto; display: block; aspect-ratio: auto; }
.brand span { line-height: 1; }
.nav-links { display: flex; gap: 14px; align-items: center; }
.nav-links a { padding: 6px 8px; border-radius: 6px; color: #2a3342; }
.nav-links a:hover { background: #e9e7ff; }

/* Hero */
.hero-grid { display: grid; gap: 20px; grid-template-columns: 1fr 1fr; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.video-wrap { position: relative; width: 100%; aspect-ratio: 16/9; border-radius: 12px; overflow: hidden; background: radial-gradient(circle at 20% 20%, #e4e6ff 0%, var(--bg) 100%); border: 1px solid rgba(79,70,229,.08); box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.video-wrap video { width: 100%; height: 100%; object-fit: cover; display: block; }

footer { padding: 28px 0; color: #5a6678; font-size: 15px; text-align: center; border-top: 1px solid rgba(79,70,229,.1); background: #ecefff; }