:root {
  --bg: #080b14;
  --surface: #0f1422;
  --surface-2: #151c2e;
  --text: #f4f6fb;
  --muted: #949db3;
  --line: rgba(255,255,255,.09);
  --accent: #7c5cff;
  --accent-2: #3dd9c5;
  --glow: rgba(124,92,255,.35);
  --shadow: 0 24px 70px rgba(0,0,0,.35);
  --radius: 24px;
}

html[data-theme="light"] {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #edf0f7;
  --text: #111522;
  --muted: #687086;
  --line: rgba(17,21,34,.1);
  --glow: rgba(124,92,255,.18);
  --shadow: 0 24px 60px rgba(25,30,50,.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 10% -10%, rgba(124,92,255,.18), transparent 32rem),
    radial-gradient(circle at 100% 18%, rgba(61,217,197,.11), transparent 28rem),
    var(--bg);
  font-family: Pretendard, Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition: background .3s ease, color .3s ease;
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.noise { position: fixed; inset: 0; pointer-events: none; opacity: .025; z-index: 20; 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='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E"); }
.section-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.section-block { padding: 110px 0 10px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  width: min(1240px, calc(100% - 28px)); margin: 14px auto 0; padding: 12px 14px 12px 18px;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid var(--line); border-radius: 18px;
  backdrop-filter: blur(18px); box-shadow: 0 12px 40px rgba(0,0,0,.14);
}
.brand { display: inline-flex; align-items: center; gap: 11px; width: fit-content; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: white; font-weight: 900; background: linear-gradient(135deg, var(--accent), #5ec8ff); box-shadow: 0 9px 24px var(--glow); }
.brand span:last-child { display: grid; line-height: 1.08; }
.brand b { font-size: 15px; }
.brand small { margin-top: 5px; color: var(--muted); font-size: 10px; letter-spacing: .04em; }
.nav { display: flex; gap: 8px; padding: 5px; }
.nav a { padding: 9px 13px; color: var(--muted); font-size: 14px; font-weight: 600; border-radius: 10px; }
.nav a:hover { color: var(--text); background: var(--surface-2); }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 8px; }
.icon-button { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 11px; color: var(--text); background: var(--surface-2); cursor: pointer; }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 1px solid var(--line); border-radius: 13px; font-weight: 750; transition: transform .2s ease, border .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.small { min-height: 40px; padding: 0 16px; font-size: 14px; }
.button.primary { color: white; border-color: transparent; background: linear-gradient(135deg, var(--accent), #5e80ff); box-shadow: 0 12px 32px var(--glow); }
.button.ghost { background: var(--surface); }

.hero { min-height: 720px; padding: 125px 0 80px; display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 80px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--accent-2); font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 6px rgba(61,217,197,.1); }
.hero h1 { margin: 24px 0 22px; font-size: clamp(44px, 6vw, 76px); line-height: 1.04; letter-spacing: -.055em; }
.hero h1 span { color: transparent; background: linear-gradient(90deg, #9a82ff, #5ec8ff 52%, #53e3c9); -webkit-background-clip: text; background-clip: text; }
.hero-copy > p { max-width: 630px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 29px; color: var(--muted); font-size: 13px; }
.hero-panel { position: relative; padding: 1px; border-radius: 26px; background: linear-gradient(145deg, rgba(124,92,255,.75), rgba(61,217,197,.1), var(--line)); box-shadow: var(--shadow), 0 0 100px rgba(124,92,255,.16); transform: perspective(1000px) rotateY(-4deg) rotateX(2deg); }
.hero-panel::after { content: ""; position: absolute; inset: 16% -12% -12% 16%; z-index: -1; background: radial-gradient(circle, var(--glow), transparent 62%); filter: blur(30px); }
.window-bar { height: 48px; display: flex; align-items: center; gap: 7px; padding: 0 16px; border-radius: 25px 25px 0 0; background: var(--surface); }
.window-bar i { width: 8px; height: 8px; border-radius: 50%; background: #ff6e75; }
.window-bar i:nth-child(2) { background: #ffc85c; }
.window-bar i:nth-child(3) { background: #62d58b; }
.window-bar span { margin-left: 7px; color: var(--muted); font: 11px ui-monospace, monospace; }
.terminal-card { padding: 24px; border-radius: 0 0 25px 25px; background: color-mix(in srgb, var(--surface) 92%, #080b14); }
.terminal-head { display: flex; justify-content: space-between; padding-bottom: 22px; font-size: 13px; font-family: ui-monospace, monospace; }
.terminal-head b { color: var(--accent-2); }
.terminal-line { display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); font: 12px ui-monospace, monospace; }
.terminal-line em { color: var(--muted); font-style: normal; }
.terminal-line i { padding: 5px 7px; color: var(--accent-2); font-size: 9px; font-style: normal; border: 1px solid rgba(61,217,197,.25); border-radius: 6px; background: rgba(61,217,197,.07); }
.pulse-chart { height: 130px; display: flex; align-items: end; gap: 8px; margin: 24px 0 18px; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(180deg, transparent, rgba(124,92,255,.05)); }
.pulse-chart span { flex: 1; height: 40%; border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, var(--accent), rgba(124,92,255,.15)); animation: pulse 2.2s ease-in-out infinite alternate; }
.pulse-chart span:nth-child(2) { height: 58%; animation-delay: -.4s; }.pulse-chart span:nth-child(3) { height: 35%; animation-delay: -.8s; }.pulse-chart span:nth-child(4) { height: 82%; animation-delay: -1.2s; }.pulse-chart span:nth-child(5) { height: 64%; animation-delay: -1.6s; }.pulse-chart span:nth-child(6) { height: 92%; animation-delay: -2s; }.pulse-chart span:nth-child(7) { height: 70%; animation-delay: -.6s; }.pulse-chart span:nth-child(8) { height: 100%; animation-delay: -1s; }
@keyframes pulse { to { filter: brightness(1.3); transform: scaleY(.78); transform-origin: bottom; } }
.terminal-foot { color: var(--muted); font: 10px/1.6 ui-monospace, monospace; }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: -20px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.metrics div { display: grid; gap: 6px; padding: 12px 26px; border-right: 1px solid var(--line); }
.metrics div:last-child { border-right: 0; }
.metrics strong { font-size: 24px; letter-spacing: -.04em; }
.metrics span { color: var(--muted); font-size: 12px; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 35px; }
.section-heading h2, .policy-copy h2, .cta h2 { margin: 10px 0 0; font-size: clamp(32px, 4vw, 48px); letter-spacing: -.045em; }
.section-heading > p { max-width: 440px; margin: 0; color: var(--muted); line-height: 1.7; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-card { min-height: 410px; display: flex; flex-direction: column; justify-content: space-between; gap: 24px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 96%, transparent), color-mix(in srgb, var(--surface-2) 70%, transparent)); box-shadow: 0 10px 34px rgba(0,0,0,.08); cursor: pointer; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.product-card:hover { transform: translateY(-7px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: var(--shadow); }
.product-card.featured { background: radial-gradient(circle at 100% 0, rgba(124,92,255,.17), transparent 45%), var(--surface); }
.product-card.coming { border-style: dashed; cursor: default; }
.card-top, .card-bottom { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.product-icon { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 15px; color: white; font-size: 14px; font-weight: 900; letter-spacing: -.03em; background: linear-gradient(135deg, #202a45, #52628d); box-shadow: inset 0 1px rgba(255,255,255,.2); }
.featured .product-icon { background: linear-gradient(135deg, var(--accent), #5ec8ff); box-shadow: 0 10px 26px var(--glow); }
.badge { padding: 7px 9px; color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .08em; border: 1px solid var(--line); border-radius: 999px; }
.badge.accent { color: #c8bdff; border-color: rgba(124,92,255,.35); background: rgba(124,92,255,.09); }
.badge.open { color: var(--accent-2); border-color: rgba(61,217,197,.28); }
.category { margin: 0 0 10px; color: var(--accent-2); font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.product-card h3 { margin: 0 0 13px; font-size: 23px; letter-spacing: -.035em; }
.summary { min-height: 72px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.mini-list { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.mini-list li { padding: 7px 9px; color: var(--muted); font-size: 11px; border-radius: 8px; background: var(--surface-2); }
.card-bottom { padding-top: 20px; border-top: 1px solid var(--line); }
.card-bottom div { display: grid; gap: 4px; }
.card-bottom small { color: var(--muted); font-size: 10px; }
.card-bottom strong { font-size: 17px; }
.text-button { padding: 0; border: 0; color: var(--text); background: transparent; font-size: 12px; font-weight: 750; cursor: pointer; }

.demo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.video-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.video-card video { display: block; width: 100%; aspect-ratio: 16/9; background: #03050a; }
.video-card > div { padding: 22px; }
.video-card span { color: var(--accent-2); font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.video-card h3 { margin: 8px 0 6px; font-size: 20px; }
.video-card p { margin: 0; color: var(--muted); font-size: 12px; }

.policy-card { display: grid; grid-template-columns: .8fr 1.2fr; gap: 65px; padding: 50px; border: 1px solid var(--line); border-radius: 30px; background: radial-gradient(circle at 0 0, rgba(124,92,255,.15), transparent 35%), var(--surface); box-shadow: var(--shadow); }
.policy-copy p { color: var(--muted); line-height: 1.85; }
.policy-list { display: grid; gap: 8px; }
.policy-list > div { display: grid; grid-template-columns: 42px 1fr; gap: 14px; padding: 17px; border: 1px solid var(--line); border-radius: 15px; background: color-mix(in srgb, var(--surface-2) 65%, transparent); }
.policy-list b { color: var(--accent); font: 800 12px ui-monospace, monospace; }
.policy-list span { display: grid; gap: 5px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.policy-list strong { color: var(--text); }

.cta { display: flex; align-items: center; justify-content: space-between; gap: 35px; margin-top: 110px; padding: 45px; border: 1px solid var(--line); border-radius: 30px; background: linear-gradient(125deg, rgba(124,92,255,.16), rgba(61,217,197,.07)), var(--surface); }
.cta p { margin: 12px 0 0; color: var(--muted); }
.footer { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-top: 70px; padding-bottom: 38px; color: var(--muted); font-size: 11px; }
.brand.compact .brand-mark { width: 32px; height: 32px; border-radius: 10px; }

.modal { width: min(700px, calc(100% - 28px)); max-height: min(86vh, 880px); padding: 0; color: var(--text); border: 1px solid var(--line); border-radius: 25px; background: var(--surface); box-shadow: 0 35px 100px rgba(0,0,0,.5); overflow: auto; }
.modal::backdrop { background: rgba(3,5,10,.72); backdrop-filter: blur(8px); }
.modal-close { position: sticky; top: 14px; float: right; z-index: 2; width: 38px; height: 38px; margin: 14px 14px 0 0; color: var(--text); font-size: 24px; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--surface-2) 92%, transparent); cursor: pointer; }
.modal-body { padding: 36px; }
.modal-body .modal-kicker { color: var(--accent-2); font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.modal-body h2 { margin: 9px 0 8px; font-size: 34px; letter-spacing: -.045em; }
.modal-version { color: var(--muted); font: 11px ui-monospace, monospace; }
.modal-desc { margin: 20px 0 28px; color: var(--muted); line-height: 1.8; }
.modal-section { margin-top: 28px; }
.modal-section h3 { margin: 0 0 12px; font-size: 14px; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin: 0; padding: 0; list-style: none; }
.feature-list li { padding: 12px 13px; color: var(--muted); font-size: 12px; line-height: 1.45; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-2); }
.price-table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 13px; }
.price-table th, .price-table td { padding: 13px 14px; text-align: left; font-size: 12px; border-bottom: 1px solid var(--line); }
.price-table th { color: var(--muted); font-weight: 600; background: var(--surface-2); }
.notice-box { padding: 15px; color: var(--muted); font-size: 12px; line-height: 1.7; border: 1px solid rgba(255,193,94,.25); border-radius: 12px; background: rgba(255,193,94,.06); }
.modal-actions { display: flex; gap: 10px; margin-top: 28px; }
.toast { position: fixed; left: 50%; bottom: 25px; z-index: 100; transform: translate(-50%, 20px); padding: 12px 16px; color: white; font-size: 12px; border: 1px solid rgba(255,255,255,.15); border-radius: 11px; background: rgba(13,17,28,.95); opacity: 0; pointer-events: none; transition: .25s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-1 { transition-delay: .1s; }.delay-2 { transition-delay: .2s; }

@media (max-width: 920px) {
  .site-header { grid-template-columns: 1fr auto; }.nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 55px; padding-top: 95px; }
  .hero-panel { max-width: 650px; transform: none; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .policy-card { grid-template-columns: 1fr; gap: 30px; }
  .footer { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 640px) {
  .section-shell { width: min(100% - 24px, 1180px); }
  .site-header { width: calc(100% - 16px); margin-top: 8px; padding-left: 12px; }
  .brand small, .header-actions .small { display: none; }
  .hero { padding-top: 80px; padding-bottom: 55px; }
  .hero h1 { font-size: 42px; }
  .hero-copy > p { font-size: 15px; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .metrics div:nth-child(2) { border-right: 0; }.metrics div { border-bottom: 1px solid var(--line); }.metrics div:nth-child(3), .metrics div:nth-child(4) { border-bottom: 0; }
  .section-block { padding-top: 85px; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .product-grid, .demo-grid { grid-template-columns: 1fr; }
  .product-card { min-height: 390px; }
  .policy-card, .cta { padding: 27px; }
  .cta { align-items: flex-start; flex-direction: column; }
  .feature-list { grid-template-columns: 1fr; }
  .modal-body { padding: 28px 20px; }
  .modal-body h2 { font-size: 28px; }
  .footer p { line-height: 1.65; }
}