:root {
  color-scheme: dark;
  --ink: #080b10;
  --panel: #111821;
  --panel-2: #161f2b;
  --line: #273446;
  --blue: #1a9cff;
  --blue-2: #5fc4ff;
  --text: #f4f8fc;
  --muted: #96a7ba;
  --ready: #f2ac43;
  font-family: "Noto Sans Thai", "Segoe UI", Tahoma, sans-serif;
  scroll-behavior: smooth;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--ink); color: var(--text); overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.noise { position: fixed; inset: 0; pointer-events: none; z-index: 10; opacity: .045; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E"); }

.site-header { height: 84px; padding: 0 clamp(22px, 5vw, 84px); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(95,196,255,.18); background: rgba(8,11,16,.87); backdrop-filter: blur(20px); position: sticky; top: 0; z-index: 20; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand img { width: 48px; height: 48px; border-radius: 11px; object-fit: cover; }
.brand span { display: grid; gap: 3px; letter-spacing: .13em; }
.brand b { font-size: 14px; }
.brand small { color: var(--blue-2); font-size: 9px; }
nav { display: flex; align-items: center; gap: 34px; color: #b7c4d2; font-size: 14px; }
nav a:hover { color: white; }
.nav-cta { padding: 11px 18px; border: 1px solid #237cc4; border-radius: 7px; color: white; background: rgba(26,156,255,.1); }
.menu-button { display: none; background: transparent; border: 1px solid var(--line); color: white; border-radius: 7px; padding: 8px 12px; }

main { max-width: 1600px; margin: 0 auto; }
.hero { min-height: calc(100vh - 84px); padding: clamp(56px, 8vw, 120px) clamp(22px, 7vw, 112px); display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(380px, .96fr); align-items: center; gap: clamp(30px, 7vw, 110px); position: relative; }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 72% 42%, rgba(26,156,255,.17), transparent 34%), linear-gradient(90deg, transparent, rgba(20,31,45,.22)); pointer-events: none; }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.status-pill { width: fit-content; display: flex; align-items: center; gap: 9px; padding: 8px 12px; border: 1px solid rgba(242,172,67,.25); color: #eecf9c; background: rgba(242,172,67,.07); font-size: 11px; letter-spacing: .12em; border-radius: 999px; }
.status-pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--ready); box-shadow: 0 0 14px var(--ready); }
.kicker { color: var(--blue-2); font-size: 12px; font-weight: 700; letter-spacing: .24em; }
.hero .kicker { margin-top: 34px; }
h1 { margin: 14px 0 20px; font-size: clamp(50px, 6.5vw, 102px); line-height: .97; letter-spacing: -.055em; }
h1 em { color: transparent; -webkit-text-stroke: 1px var(--blue-2); font-style: normal; }
.lead { max-width: 640px; color: #a9b8c8; font-size: clamp(16px, 1.3vw, 20px); line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 34px 0 38px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; padding: 0 23px; border-radius: 7px; border: 1px solid transparent; font-weight: 700; cursor: pointer; }
.primary { background: linear-gradient(135deg, #148ff0, #45b7ff); color: #03101b; box-shadow: 0 12px 32px rgba(26,156,255,.2); }
.ghost { border-color: var(--line); color: #c5d1dd; background: rgba(255,255,255,.02); }
.quick-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; max-width: 620px; margin: 0; }
.quick-facts div { padding-left: 14px; border-left: 2px solid #215c88; }
.quick-facts dt { color: #6f8296; font-size: 9px; letter-spacing: .2em; }
.quick-facts dd { margin: 7px 0 0; font-size: 14px; font-weight: 700; }

.hero-visual { min-height: 620px; display: grid; place-items: center; }
.skull-frame { width: min(460px, 77%); aspect-ratio: 1; border: 1px solid rgba(95,196,255,.28); border-radius: 50%; padding: 11%; background: radial-gradient(circle, rgba(33,94,139,.22), rgba(8,11,16,.88) 66%); box-shadow: inset 0 0 80px rgba(26,156,255,.07), 0 0 100px rgba(26,156,255,.08); }
.skull-frame img { width: 100%; height: 100%; object-fit: cover; border-radius: 28%; filter: contrast(1.08) drop-shadow(0 0 22px rgba(95,196,255,.13)); }
.orbit { position: absolute; border: 1px solid rgba(95,196,255,.13); border-radius: 50%; }
.orbit-one { width: 90%; aspect-ratio: 1; }
.orbit-two { width: 67%; aspect-ratio: 1; border-style: dashed; animation: spin 30s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.float-card { position: absolute; min-width: 215px; padding: 14px 16px; display: grid; grid-template-columns: 28px 1fr; column-gap: 7px; background: rgba(16,24,34,.92); border: 1px solid #2a4054; border-left: 2px solid var(--blue); border-radius: 8px; box-shadow: 0 12px 30px rgba(0,0,0,.3); }
.float-card span { grid-row: 1 / 3; color: var(--blue-2); font-size: 11px; }
.float-card b { font-size: 11px; letter-spacing: .1em; }
.float-card small { margin-top: 3px; color: #8192a3; font-size: 10px; }
.float-card.voice { left: -2%; top: 28%; }
.float-card.map { right: -2%; bottom: 22%; }

.systems { padding: 110px clamp(22px, 7vw, 112px); border-top: 1px solid #192332; background: linear-gradient(180deg, #0b1016, #101720); }
.section-heading { max-width: 650px; }
.section-heading h2 { margin: 10px 0 16px; font-size: clamp(38px, 4.6vw, 68px); line-height: 1.05; letter-spacing: -.045em; }
.section-heading > p:last-child { color: var(--muted); line-height: 1.8; }
.system-grid { margin-top: 55px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--line); }
.system-grid article { min-height: 390px; padding: 34px; position: relative; border-right: 1px solid var(--line); background: linear-gradient(145deg, rgba(255,255,255,.025), transparent); }
.system-grid article:last-child { border-right: 0; }
.number { position: absolute; top: 24px; right: 26px; color: #4b6074; font-size: 11px; letter-spacing: .16em; }
.system-icon { width: 54px; height: 54px; display: grid; place-items: center; border: 1px solid #2d74aa; color: var(--blue-2); background: rgba(26,156,255,.08); border-radius: 12px; font-size: 26px; }
.system-grid h3 { margin: 30px 0 12px; font-size: 25px; }
.system-grid p { color: #97a8b8; line-height: 1.75; }
.system-grid p b { color: #dcecff; }
.system-grid ul { list-style: none; padding: 18px 0 0; border-top: 1px solid #24303d; color: #72879b; font-size: 13px; line-height: 2; }
.system-grid li::before { content: "—"; color: var(--blue); margin-right: 8px; }

.flow { padding: 90px clamp(22px, 7vw, 112px); background: #0b1016; }
.flow-panel { padding: clamp(30px, 5vw, 70px); display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; border: 1px solid #273647; background: radial-gradient(circle at 10% 10%, rgba(26,156,255,.12), transparent 37%), #111821; }
.flow ol { margin: 0; padding: 0; list-style: none; }
.flow li { display: grid; grid-template-columns: 50px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid #283442; }
.flow li:last-child { border-bottom: 0; }
.flow li > span { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid #246b9f; border-radius: 50%; color: var(--blue-2); }
.flow li b { font-size: 18px; }
.flow li p { margin: 7px 0 0; color: var(--muted); line-height: 1.6; }

.download { margin: 0 clamp(22px, 7vw, 112px) 100px; padding: 44px 48px; display: flex; align-items: center; justify-content: space-between; gap: 30px; border: 1px solid #23608f; background: linear-gradient(115deg, #10263a, #111821 65%); }
.download h2 { margin: 7px 0; font-size: clamp(28px, 3vw, 44px); }
.download h2 span { color: var(--blue-2); font-size: .45em; vertical-align: top; }
.download p:last-child { color: var(--muted); }
.download-button { min-width: 245px; color: #697887; background: #19222c; border-color: #2b3948; cursor: not-allowed; }
footer { max-width: 1600px; margin: 0 auto; padding: 32px clamp(22px, 7vw, 112px); display: flex; justify-content: space-between; align-items: center; border-top: 1px solid #1d2834; color: #66798c; font-size: 12px; }
.brand.compact img { width: 38px; height: 38px; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { min-height: 520px; }
  .system-grid { grid-template-columns: 1fr; }
  .system-grid article { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .system-grid article:last-child { border-bottom: 0; }
  .flow-panel { grid-template-columns: 1fr; gap: 22px; }
}

@media (max-width: 680px) {
  .site-header { height: 70px; }
  .brand img { width: 40px; height: 40px; }
  nav { display: none; position: absolute; top: 69px; left: 0; right: 0; padding: 20px; flex-direction: column; align-items: stretch; gap: 8px; background: #0c1219; border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  nav a { padding: 11px; }
  .menu-button { display: block; }
  .hero { padding-top: 50px; }
  .hero-visual { min-height: 440px; }
  .float-card { min-width: 180px; padding: 11px; }
  .float-card.voice { left: 0; }
  .float-card.map { right: 0; }
  .quick-facts { grid-template-columns: 1fr; }
  .download { padding: 30px 24px; flex-direction: column; align-items: stretch; }
  .download-button { width: 100%; }
  footer { align-items: flex-start; flex-direction: column; gap: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
  .orbit-two { animation: none; }
}