:root {
  --bg: #f6f4f0;
  --surface: #ffffff;
  --sand: #ede7dc;
  --ink: #1c1b19;
  --ink-2: #3a3834;
  --muted: #6b6862;
  --line: #e2ddd3;
  --accent: #1f5c4a;
  --accent-soft: #e2ece7;
  --live: #1f5c4a;
  --soon: #8a5a12;
  --soon-soft: #f4ead9;
  --beta: #34507a;
  --beta-soft: #e3e9f3;
  --radius: 14px;
  --max: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161513;
    --surface: #1f1e1b;
    --sand: #26241f;
    --ink: #f1eee8;
    --ink-2: #d6d2ca;
    --muted: #a19c93;
    --line: #34312c;
    --accent: #7fc4a9;
    --accent-soft: #1e2f28;
    --live: #7fc4a9;
    --soon: #e0b46a;
    --soon-soft: #33291a;
    --beta: #9db7e0;
    --beta-soft: #1f2836;
    color-scheme: dark;
  }
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -0.01em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

a { color: inherit; }
img { max-width: 100%; display: block; }

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

.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 16px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: 0.08em; font-size: 15px; }
.brand svg { width: 28px; height: 28px; flex: none; }
.nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--ink); }
.lang { border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; color: var(--ink) !important; font-size: 13px; font-weight: 600; }
@media (max-width: 760px) { .nav .nav-link { display: none; } }

/* Hero */
.hero { padding: 88px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
h1 { font-size: clamp(34px, 5.2vw, 56px); line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 22px; font-weight: 750; }
.lead { font-size: clamp(17px, 1.6vw, 19px); color: var(--ink-2); margin: 0 0 32px; max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 10px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid transparent; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--ink-2); }
.btn-ghost { border-color: var(--line); background: var(--surface); }
.btn-ghost:hover { border-color: var(--muted); }

.map { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: grid; gap: 14px; }
.map-title { font-size: 13px; color: var(--muted); margin: 0; font-weight: 600; letter-spacing: 0.04em; }
.map-row { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; }
.map-who { background: var(--sand); border-radius: 10px; padding: 12px 14px; font-size: 15px; font-weight: 600; line-height: 1.4; }
.map-who small { display: block; font-weight: 400; color: var(--muted); font-size: 13px; margin-top: 2px; }
.map-arrow { color: var(--muted); font-size: 18px; }
.map-tools { display: grid; gap: 8px; }
.map-tool { border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; font-weight: 700; font-size: 15px; letter-spacing: 0.01em; }
.map-tool small { display: block; font-weight: 400; color: var(--muted); font-size: 12.5px; letter-spacing: 0; }

@media (max-width: 900px) {
  .hero { padding: 56px 0 48px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
}

/* Sections */
section { scroll-margin-top: 72px; }
.section { padding: 80px 0; border-top: 1px solid var(--line); }
.section-head { max-width: 720px; margin-bottom: 40px; }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.25; letter-spacing: -0.025em; margin: 0 0 14px; font-weight: 720; }
.section-head p { color: var(--ink-2); margin: 0; }
h3 { font-size: 22px; margin: 0; letter-spacing: -0.02em; }

/* Products */
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.card-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px; }
.card-top h3 { white-space: nowrap; }
.badge { font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; white-space: nowrap; }
.badge-live { color: var(--live); background: var(--accent-soft); }
.badge-soon { color: var(--soon); background: var(--soon-soft); }
.badge-beta { color: var(--beta); background: var(--beta-soft); }
.card .for { font-size: 13px; color: var(--muted); font-weight: 600; margin: -6px 0 0; }
.card .summary { margin: 0; font-weight: 600; line-height: 1.5; }
.card ul { margin: 0; padding-left: 18px; color: var(--ink-2); font-size: 15.5px; display: grid; gap: 8px; }
.card ul li::marker { color: var(--accent); }
.card .meta { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--muted); }
.card .links { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 15px; font-weight: 600; }
.card .links a { color: var(--accent); text-decoration: none; }
.card .links a:hover { text-decoration: underline; }
@media (max-width: 980px) { .products { grid-template-columns: 1fr; } }

/* Claude */
.claude { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.claude-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.claude-item .tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent); background: var(--accent-soft); border-radius: 6px; padding: 3px 8px; margin-bottom: 12px; }
.claude-item h3 { font-size: 18px; margin-bottom: 8px; }
.claude-item p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.note { margin: 20px 0 0; font-size: 14px; color: var(--muted); }
@media (max-width: 900px) { .claude { grid-template-columns: 1fr; } }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.principle .num { font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 0.08em; }
.principle h3 { font-size: 19px; margin: 8px 0 8px; }
.principle p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
@media (max-width: 900px) { .principles { grid-template-columns: 1fr; gap: 24px; } }

/* Company */
.company { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.story p { margin: 0 0 16px; color: var(--ink-2); }
.facts { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); margin: 0; padding: 8px 24px; }
.facts div { display: grid; grid-template-columns: 11em 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.facts div:last-child { border-bottom: 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 500; }
@media (max-width: 900px) {
  .company { grid-template-columns: 1fr; }
  .facts div { grid-template-columns: 1fr; gap: 2px; }
}

/* Contact */
.contact { background: var(--ink); color: var(--bg); border-radius: 20px; padding: 48px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.contact h2 { margin-bottom: 8px; }
.contact p { margin: 0; opacity: 0.8; }
.contact .btn { background: var(--bg); color: var(--ink); }
@media (max-width: 600px) { .contact { padding: 32px 24px; } }

/* Footer */
.site-footer { padding: 40px 0 56px; font-size: 13.5px; color: var(--muted); }
.site-footer .wrap { display: grid; gap: 10px; }
.site-footer .row { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--ink); }

/* Error page */
.error { min-height: 60vh; display: grid; place-content: center; text-align: center; gap: 12px; padding: 80px 24px; }
.error p { margin: 0; color: var(--muted); }

@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
  .card { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }