:root {
  --bg: #07070b;
  --bg-2: #0d0d14;
  --bg-3: #111119;
  --fg: #f3f4f7;
  --muted: #9aa0ad;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --gold: #d6b46a;
  --gold-2: #f1d493;
  --accent: #6a8bff;
  --max: 1200px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', 'Noto Sans KR', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-feature-settings: 'tnum' 1;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
.hdr {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(7, 7, 11, 0.7);
  border-bottom: 1px solid var(--line);
}
.hdr-row { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: #1a1a22; display: grid; place-items: center;
  font-weight: 900; font-size: 13px; letter-spacing: 0;
}
.brand-name { font-size: 18px; letter-spacing: -0.01em; }
.nav { display: none; gap: 24px; color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--fg); }
.hdr-cta { display: flex; gap: 8px; }

@media (min-width: 768px) {
  .nav { display: inline-flex; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
  border: 1px solid transparent; transition: all .18s ease; cursor: pointer; white-space: nowrap;
}
.btn.lg { padding: 14px 24px; font-size: 15px; }
.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: #1a1a22; border-color: rgba(0,0,0,0.2);
  box-shadow: 0 8px 24px rgba(214, 180, 106, 0.18);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(214, 180, 106, 0.28); }
.btn-outline { color: var(--fg); border-color: var(--line-2); background: rgba(255,255,255,0.02); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-ghost { color: var(--muted); }
.btn-ghost:hover { color: var(--fg); }
.arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(2px); }

/* Hero */
.hero {
  position: relative; padding: 80px 0 96px;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(214,180,106,0.10), transparent 60%),
    radial-gradient(700px 400px at 10% 110%, rgba(106,139,255,0.08), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.hero-grid { display: grid; gap: 56px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1.2fr 0.9fr; gap: 80px; } }

.kicker {
  display: inline-block; padding: 6px 12px; border-radius: 999px;
  background: rgba(214,180,106,0.10); color: var(--gold-2);
  font-size: 11px; letter-spacing: 0.2em; font-weight: 600;
  border: 1px solid rgba(214,180,106,0.22);
}
.hero h1 {
  margin: 18px 0 18px; font-size: clamp(36px, 6vw, 64px);
  font-weight: 900; line-height: 1.1; letter-spacing: -0.02em;
  font-family: 'Noto Sans KR', 'Inter', sans-serif;
}
.grad {
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-2) 50%, #fff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 17px; color: #cfd2dc; max-width: 620px; margin: 0 0 28px; }
.lead strong { color: var(--gold-2); font-weight: 600; }

.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.hero-points {
  list-style: none; padding: 0; margin: 0;
  display: flex; gap: 20px 28px; flex-wrap: wrap; color: var(--muted); font-size: 14px;
}
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(214,180,106,0.12);
}

/* Hero card */
.hero-card {
  border: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
  border-radius: 20px; padding: 8px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}
.card-tier {
  background: linear-gradient(180deg, rgba(214,180,106,0.06), transparent);
  border: 1px solid var(--line); border-radius: 14px; padding: 22px;
}
.tier-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 0; border-bottom: 1px dashed var(--line);
  font-size: 15px;
}
.tier-row:last-of-type { border-bottom: 0; }
.tier-row span { color: var(--muted); }
.tier-row b { font-weight: 700; font-size: 18px; font-variant-numeric: tabular-nums; }
.tier-row.hl b { color: var(--gold-2); font-size: 22px; }
.card-foot {
  margin-top: 14px; text-align: center;
  font-size: 12px; letter-spacing: 0.25em; color: var(--muted);
  text-transform: uppercase;
}

/* Sections */
.sec { padding: 96px 0; }
.sec-dark { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.sec-head h2 {
  margin: 14px 0 14px; font-size: clamp(28px, 4vw, 42px);
  font-weight: 800; letter-spacing: -0.01em; line-height: 1.2;
  font-family: 'Noto Sans KR', 'Inter', sans-serif;
}
.sec-head .sub { color: var(--muted); font-size: 16px; }

/* 3-column */
.three { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .three { grid-template-columns: repeat(3, 1fr); } }
.three-item {
  background: var(--bg-3); border: 1px solid var(--line);
  border-radius: 16px; padding: 28px;
  transition: border-color .2s, transform .2s;
}
.three-item:hover { border-color: var(--line-2); transform: translateY(-2px); }
.three-item .num {
  font-size: 13px; color: var(--gold-2); font-weight: 700;
  letter-spacing: 0.2em;
}
.three-item h3 { font-size: 20px; margin: 14px 0 8px; font-weight: 700; }
.three-item p { color: var(--muted); font-size: 15px; margin: 0; }

/* Roadmap grid */
.roadmap {
  display: grid; gap: 16px;
  grid-template-columns: repeat(1, 1fr);
}
@media (min-width: 640px) { .roadmap { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .roadmap { grid-template-columns: repeat(4, 1fr); } }
.rm {
  position: relative;
  background: var(--bg-3); border: 1px solid var(--line);
  border-radius: 16px; padding: 22px;
  transition: border-color .2s, transform .2s;
}
.rm:hover { border-color: var(--gold); transform: translateY(-2px); }
.rm-num {
  font-size: 12px; color: var(--muted); font-weight: 700;
  letter-spacing: 0.2em;
}
.rm-price {
  font-size: 28px; font-weight: 800; margin: 8px 0 4px;
  font-variant-numeric: tabular-nums;
}
.rm-name {
  font-size: 13px; color: var(--gold-2); font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 12px;
}
.rm p { color: var(--muted); font-size: 14px; margin: 0; }
.rm.rm-top {
  background: linear-gradient(180deg, rgba(214,180,106,0.10), var(--bg-3));
  border-color: rgba(214,180,106,0.35);
}
.rm.rm-top .rm-price { color: var(--gold-2); }
.rm-note {
  margin-top: 32px; text-align: center; color: var(--muted);
  font-size: 13px; line-height: 1.7;
}

/* Steps */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 16px;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li {
  background: var(--bg-3); border: 1px solid var(--line);
  border-radius: 16px; padding: 28px;
}
.step-num {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(214,180,106,0.12); color: var(--gold-2);
  font-weight: 700; font-size: 16px;
  border: 1px solid rgba(214,180,106,0.3);
}
.steps h3 { font-size: 20px; margin: 16px 0 8px; font-weight: 700; }
.steps p { color: var(--muted); font-size: 15px; margin: 0 0 18px; }

/* FAQ */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-list details {
  background: var(--bg-3); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px 22px;
  transition: border-color .15s;
}
.faq-list details[open] { border-color: var(--line-2); }
.faq-list summary {
  cursor: pointer; font-weight: 600; font-size: 16px;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: '+'; color: var(--gold); font-size: 22px; font-weight: 400;
  transition: transform .2s;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list p { color: var(--muted); margin: 14px 0 0; line-height: 1.7; }

/* CTA */
.cta {
  padding: 80px 0; background: var(--bg-2);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.cta-row { display: grid; gap: 24px; align-items: center; }
@media (min-width: 768px) { .cta-row { grid-template-columns: 1.4fr 1fr; gap: 48px; } }
.cta h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; margin: 0 0 8px; line-height: 1.25; }
.cta p { color: var(--muted); margin: 0; font-size: 16px; }
.cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }
@media (min-width: 768px) { .cta-btns { justify-content: flex-end; } }

/* Footer */
.ftr {
  padding: 48px 0 32px; background: #050507;
  border-top: 1px solid var(--line);
}
.ftr-row {
  display: grid; gap: 24px; grid-template-columns: 1fr;
  padding-bottom: 32px; border-bottom: 1px solid var(--line);
}
@media (min-width: 768px) { .ftr-row { grid-template-columns: 1fr auto; align-items: end; } }
.ftr-desc { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.ftr-links { display: flex; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }
.ftr-links a:hover { color: var(--fg); }
.ftr-fine { padding-top: 24px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.ftr-fine p { margin: 0 0 6px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}