@font-face {
  font-family: "TS Script";
  src: url("/fonts/greatvibes-hk.woff2") format("woff2");
  font-display: swap;
}

:root {
  color-scheme: dark;
  /* 팔레트: 이 블록만 바꾸면 사이트 전체 색이 바뀜 */
  --bg: #08090a;
  --bg-alt: #0d0e10;
  --surface: #131417;
  --surface-2: #1a1b1f;
  --line: #24262b;
  --ink: #e3e4e8;
  --muted: #8f949e;
  --head: #f7f8f8;
  --nav-bg: rgba(8, 9, 10, .82);
  --footer-bg: #050506;
  --footer-ink: #80858f;
  --mark: #d0d3da;
  --ghost-line: #5a5f6a;
  --accent: #5960d6;
  --accent-rgb: 89, 96, 214;
  --accent-hover: #6970e0;
  --accent-ink: #a9aeff;
  --on-accent: #ffffff;
  --glow2-rgb: 60, 70, 160;
  --accent-soft: rgba(var(--accent-rgb), .14);
  --ok: #4cc58f;
  --warn: #e6b04f;
  --no: #ef7a6d;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; background: var(--bg); }
body {
  margin: 0;
  font-family: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.3; margin: 0 0 .5em; letter-spacing: -0.02em; color: var(--head); }
p { margin: 0 0 1em; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--head); }
.brand em { font-style: normal; font-weight: 600; font-size: .8rem; letter-spacing: .12em; color: var(--accent-ink); }
.mark { width: 28px; height: 28px; fill: var(--mark); }
.mark rect:first-child { fill: var(--accent); }
.links { display: flex; align-items: center; gap: 24px; font-size: .95rem; color: var(--muted); }
.links a:hover { color: var(--head); }

/* buttons */
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 999px;
  background: var(--accent); color: var(--on-accent); font-weight: 700;
  transition: background .15s, transform .15s;
}
.btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.links a.btn { color: var(--on-accent); }
.btn-sm { padding: 11px 18px; font-size: .9rem; }
.btn-lg { padding: 16px 34px; font-size: 1.1rem; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ghost-line); }
.btn-ghost:hover { background: var(--surface-2); border-color: var(--accent); }

/* hero */
.hero {
  padding: 110px 0 100px;
  background:
    radial-gradient(800px 420px at 85% -10%, rgba(var(--accent-rgb), .18), transparent 70%),
    radial-gradient(700px 400px at 0% 100%, rgba(var(--glow2-rgb), .12), transparent 70%),
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.eyebrow { color: var(--accent-ink); font-weight: 700; letter-spacing: .04em; font-size: .95rem; }
.hero h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); font-weight: 800; }
.hl { color: var(--accent-ink); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 620px; margin: 18px 0 34px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* sections */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
.sub { color: var(--muted); margin-bottom: 40px; }
.tag {
  font-size: .8rem; font-weight: 700; vertical-align: middle; margin-left: 8px;
  padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-ink);
}

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.card {
  display: flex; flex-direction: column;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; background: var(--surface);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(var(--accent-rgb), .5); transform: translateY(-2px); }
.num { display: block; font-weight: 800; color: var(--accent-ink); margin-bottom: 10px; }
.card h3 { font-size: 1.2rem; }
.card p { color: var(--muted); font-size: .97rem; flex: 1; }
.card ul { margin: 0; padding: 14px 0 0; list-style: none; border-top: 1px solid var(--line); }
.card li { font-size: .92rem; padding: 3px 0 3px 18px; position: relative; }
.card li::before { content: ""; position: absolute; left: 2px; top: .75em; width: 7px; height: 7px; border-radius: 2px; background: var(--accent); }

/* AI */
.ai-main { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: start; }
.badge {
  display: inline-block; font-size: .8rem; font-weight: 700; padding: 4px 10px;
  border-radius: 6px; border: 1px solid var(--accent); color: var(--accent-ink); margin-bottom: 12px;
}
.ai-copy h3 { font-size: 1.4rem; }
.ai-copy p { color: var(--muted); }
.steps { margin: 20px 0 0; padding: 0; list-style: none; counter-reset: s; }
.steps li {
  counter-increment: s; position: relative; padding: 10px 0 10px 44px;
  border-bottom: 1px dashed var(--line); color: var(--muted); font-size: .95rem;
}
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 9px;
  width: 28px; height: 28px; border-radius: 50%; background: var(--accent-soft);
  color: var(--accent-ink); font-weight: 800; display: grid; place-items: center; font-size: .85rem;
}
.steps b { color: var(--ink); margin-right: 6px; }

.ai-demo {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .35); overflow: hidden;
}
.demo-head { background: var(--surface-2); color: var(--head); font-weight: 700; padding: 14px 20px; font-size: .95rem; border-bottom: 1px solid var(--line); }
.demo-row { display: flex; justify-content: space-between; gap: 12px; padding: 14px 20px; border-bottom: 1px solid var(--line); font-size: .95rem; }
.ai-demo dl { margin: 0; }
.demo-row dt { margin: 0; }
.demo-row dd { margin: 0; flex: none; font-size: .85rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; }
.ok dd { color: var(--ok); background: rgba(76, 197, 143, .14); }
.warn dd { color: var(--warn); background: rgba(230, 176, 79, .14); }
.no dd { color: var(--no); background: rgba(239, 122, 109, .14); }
.demo-foot { margin: 0; padding: 12px 20px; font-size: .8rem; color: var(--muted); }
.ai-demo { margin: 0; }

/* team */
.person { display: flex; gap: 20px; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--surface); }
.avatar {
  flex: none; width: 60px; height: 60px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent-ink); font-family: "TS Script", "Snell Roundhand", "Segoe Script", cursive; font-weight: 400; font-size: 1.8rem; line-height: 1; padding: 4px 3px 0 0;
  display: grid; place-items: center; border: 1px solid rgba(var(--accent-rgb), .4);
}
.person h3 { font-size: 1.15rem; }
.person small { font-weight: 600; color: var(--accent-ink); margin-left: 6px; font-size: .85rem; }
.person p { color: var(--muted); margin: 0; font-size: .95rem; }
.facts { list-style: none; margin: 14px 0 0; padding: 12px 0 0; border-top: 1px solid var(--line); }
.facts li { font-size: .9rem; color: var(--ink); padding: 3px 0 3px 16px; position: relative; }
.facts li::before { content: ""; position: absolute; left: 1px; top: .78em; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); }

/* cta */
.section-cta {
  background: radial-gradient(700px 300px at 50% 0%, rgba(var(--accent-rgb), .14), transparent 70%), var(--bg-alt);
  border-top: 1px solid var(--line);
}

/* footer */
.footer { background: var(--footer-bg); color: var(--footer-ink); padding: 44px 0; font-size: .88rem; border-top: 1px solid var(--line); }
.footer p { margin: 0 0 4px; }
.foot-brand { margin-bottom: 16px; }
.copy { margin-top: 14px !important; color: var(--footer-ink); }

/* contact */
.checklist { list-style: none; padding: 0; margin: 0 auto 32px; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; max-width: 640px; }
.checklist li { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 6px 16px; font-size: .92rem; }
.mail-plain { margin-top: 14px; color: var(--muted); font-size: .95rem; user-select: all; }
.biz { margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 4px 20px; }
.biz div { display: flex; gap: 8px; }
.biz dt { color: var(--muted); }
.biz dd { margin: 0; }
.foot-links a { text-decoration: underline; text-underline-offset: 3px; }
.footer a:hover { color: var(--ink); }

/* a11y */
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--accent); color: var(--on-accent); padding: 10px 16px; border-radius: 8px; font-weight: 700; }
.skip:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--accent-ink); outline-offset: 3px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
  .btn:hover, .card:hover { transform: none; }
}

/* legal pages */
.doc { padding: 72px 0 90px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font-size: clamp(1.7rem, 4vw, 2.2rem); }
.doc h2 { font-size: 1.15rem; margin-top: 2em; }
.doc p, .doc li { color: var(--muted); }
.doc a { color: var(--accent-ink); text-decoration: underline; }
.doc .meta { font-size: .9rem; }

/* mobile */
@media (max-width: 860px) {
  .grid3, .grid2, .ai-main { grid-template-columns: 1fr; }
  .links a:not(.btn) { display: none; }
  .hero { padding: 72px 0 64px; }
  .section { padding: 64px 0; }
  .wrap { padding: 0 16px; }
}