/* ── Theme: Default (Root) ── */
/* Gowun Batang + Pretendard · Warm cream palette */

:root {
  /* ── Colors ── */
  --cream: #f8f6f2;
  --paper: #fffdf8;
  --surface: #ffffff;
  --ink: #111110;
  --ink-soft: #2a2a28;
  --ink-blue: #0f4c81;
  --ink-blue-2: #1a6cb0;
  --green: #2d6a4f;
  --red: #c0392b;
  --amber: #b5791f;
  --muted: #4a4a47;
  --muted-2: #8a8a86;
  --border: #e2dfd9;
  --border-2: #d6d2c8;
  --hl: #fff3b0;
  --green-l: #a3c4a8;
  --dark: #141b22;

  /* ── Fonts ── */
  --font-serif: 'Gowun Batang', serif;
  --font-sans: 'Pretendard', sans-serif;
  --font-ui: 'Pretendard', sans-serif;

  /* ── Theme tokens ── */
  --bg-body: var(--cream);
  --bg-outer: #ece9e2;
  --dark-bg: #141b22;
  --dark-highlight: #a3c4a8;
  --brand-dot: var(--ink-blue);
  --nav-bg: rgba(248, 246, 242, 0.92);
  --nav-blur: 10px;
  --nav-dot-active: var(--ink);
  --scroll-fill: var(--ink-blue);
  --accent-alt: #00827f;

  /* ── Semantic tokens ── */
  --primary: var(--ink-blue);
  --primary-hover: var(--ink-blue-2);
  --border-subtle: var(--border-2);
  --focus-ring: var(--ink-blue);

  /* ── Spacing / Layout ── */
  --lh-tight: 1.25;
  --lh-normal: 1.55;
  --lh-loose: 1.8;
  --pad-x: 22px;
}

/* ── Root-only overrides ── */

.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand .seal {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand .seal svg {
  width: 100%;
  height: 100%;
  display: block;
}

.brand small {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.nav-cta {
  color: var(--ink);
  padding: 5px 11px;
  border: 1px solid var(--ink);
}

.hero-greet {
  font-size: 12px;
  letter-spacing: 0.02em;
}

.hero-greet b { font-weight: 600 }

.hero h1 {
  font-weight: 700;
  letter-spacing: -0.03em;
}

.hero h1 em { color: var(--ink-blue) }

.hero h1 .line2 {
  color: var(--ink-soft);
  letter-spacing: -0.02em;
}

.hero-lede b { font-weight: 500 }

.hero-tag {
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  background: var(--ink);
}

.hero-tag.alt {
  color: var(--muted);
  border: 1px solid var(--border-2);
}

.creds-t {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.creds-l b {
  color: var(--ink-blue);
  font-weight: 600;
}

.hero-scroll { color: var(--muted-2) }
.hero-scroll::before { background: var(--muted-2) }

.proof-ey { color: var(--ink-blue) }
.proof-ey::before { background: var(--ink-blue) }

.proof-intro h2 { font-weight: 700 }
.proof-intro p b { font-weight: 500 }

.howework-ey { color: var(--ink-blue) }
.howework-ey::before { background: var(--ink-blue) }
.howework h2 { font-weight: 700 }

.howework-lede b { font-weight: 500 }

.howework-quotes {
  border-left: 2px solid var(--ink-blue);
  background: var(--paper);
}

.step {
  border-radius: 8px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.step:hover {
  border-color: var(--ink-blue);
  transform: translateY(-2px);
}

.step-n {
  font-size: 36px;
  font-weight: 700;
  opacity: 0.9;
}

.step-badge {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--ink-blue);
  background: rgba(30, 58, 138, 0.05);
  border: 1px solid rgba(30, 58, 138, 0.15);
  letter-spacing: 0.02em;
}

/* Transfer */
.transfer { background: var(--ink) }
.transfer-ey { color: rgba(255, 255, 255, 0.5) }
.transfer-ey::before { background: rgba(255, 255, 255, 0.3) }
.transfer h2 { font-weight: 700 }
.transfer h2 em { color: var(--dark-highlight) }
.transfer-domains span {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.85);
}

/* About */
.about { background: var(--paper) }
.about-ey {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.about h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
}
.about p b { font-weight: 500 }
.about-where a {
  border-radius: 6px;
  transition: border-color 0.2s;
}
.about-where a:hover { border-color: var(--ink-blue) }
.about-where .chan-ic {
  width: 24px;
  height: 24px;
  background: var(--cream);
  color: var(--ink-blue);
  font-size: 12px;
}
.about-where .chan-sub {
  font-size: 11px;
  color: var(--muted-2);
  letter-spacing: 0.02em;
}
.about-where .arr {
  color: var(--muted-2);
}

/* FAQ */
.faq-ey { color: var(--ink-blue) }
.faq-ey::before { background: var(--ink-blue) }
.faq h3 { font-weight: 700 }
details.q summary::after {
  color: var(--muted-2);
  font-size: 20px;
  font-weight: 400;
}
details.q .a b { font-weight: 500 }

/* CTA */
.cta { background: var(--dark-bg) }
.cta-ey { color: rgba(255, 255, 255, 0.45) }
.cta-ey::before,
.cta-ey::after { background: rgba(255, 255, 255, 0.2) }
.cta h2 { font-weight: 700 }
.cta h2 em { color: var(--dark-highlight) }
.cta-sub {
  color: rgba(255, 255, 255, 0.7);
}
.cta-sub b { color: #fff; font-weight: 600 }
.cta-btn {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.08);
}
.cta-btn .arrow { transition: transform 0.2s }
.cta-btn:hover .arrow { transform: translateX(3px) }
.cta-alt { color: rgba(255, 255, 255, 0.6) }
.cta-alt a {
  color: #fff;
  text-decoration: underline;
  padding-bottom: 1px;
}
.cta-mini {
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.04em;
}

/* Footer */
footer {
  color: var(--muted-2);
  letter-spacing: 0.02em;
  text-align: center;
}
footer .footer-mark {
  display: inline-block;
  color: var(--ink);
  opacity: 0.55;
  margin-bottom: 14px;
}
footer .footer-mark svg {
  width: 168px;
  height: auto;
  display: block;
}
footer .footer-rule {
  width: 28px;
  height: 1px;
  background: var(--border-2);
  margin: 0 auto 14px;
}
footer b {
  color: var(--muted);
  font-weight: 500;
}

/* Scroll bar */
.scroll-bar .fill { background: var(--scroll-fill) }

/* Edge */
.edge { background: var(--cream) }
.edge-ey { color: var(--ink-blue) }
.edge-ey::before { background: var(--ink-blue) }
.edge h2 { font-weight: 700 }
.edge-lead b { font-weight: 500 }

.edge-flow-label {
  font-size: 10px;
  color: var(--ink-blue);
  letter-spacing: 0.08em;
}
.edge-flow-sub { color: var(--muted-2) }

.edge-card {
  border-radius: 8px;
}
.edge-card-ey { color: var(--ink-blue) }
.edge-card h3 { font-weight: 700 }
.edge-card p b { font-weight: 500 }

/* card-ba-badge: font-size & letter-spacing now in base */
.card-ba-badge.before {
  background: rgba(192, 57, 43, 0.1);
  color: var(--red);
}
.card-ba-badge.after {
  background: rgba(45, 106, 79, 0.1);
  color: var(--green);
}
.card-ba-text b { font-weight: 500 }
.card-transfer-label { color: var(--muted-2) }
.card-link {
  color: var(--ink-blue);
  border: 1px solid var(--ink-blue);
}
.card-link:hover {
  background: var(--ink-blue);
  color: #fff;
}
.card-link.alt {
  color: var(--accent-alt);
  border-color: var(--accent-alt);
}
.card-link.alt:hover {
  background: var(--accent-alt);
  color: #fff;
}

.edge-conclusion {
  border-left: 3px solid var(--ink-blue);
}

/* Edge bio / dark about */
.edge-bio { background: var(--dark-bg) }

/* Pain card */
.pain-n { color: var(--border-2) }
.pain-label { color: var(--ink-blue) }

/* Bio stat */
.bio-stat-num small {
  font-size: 16px;
  color: var(--muted);
}

/* About-where (dark version in edge-bio) */
.edge-bio .about-where a {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.85);
  transition: background 0.2s, border-color 0.2s;
}
.edge-bio .about-where a:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
}
.edge-bio .about-where .chan { gap: 12px }
.edge-bio .about-where .chan-ic {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
}
.edge-bio .about-where .chan-sub {
  color: rgba(255, 255, 255, 0.4);
}
.edge-bio .about-where .arr {
  color: rgba(255, 255, 255, 0.3);
}

/* Case section */
.case-mark { color: var(--ink-blue) }
.case-kind {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.case h2 {
  font-weight: 700;
  letter-spacing: -0.02em;
}
.sw-lab {
  font-size: 11px;
  letter-spacing: 0.1em;
}
.sw-row.b .sw-lab { color: var(--red) }
.sw-row.a .sw-lab { color: var(--green) }
.sw-row.a .sw-num em { color: var(--ink-blue) }
.sw-delta b { color: var(--ink-blue); font-weight: 700 }

.gauge-head .lab {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.gauge-score em { color: var(--ink-blue) }
.gauge-score .max { color: var(--muted); font-weight: 400 }
.gauge-fill {
  background: linear-gradient(90deg, var(--red) 0%, var(--amber) 50%, var(--green) 100%);
}
.gauge-scale { color: var(--muted-2) }
.gauge-criteria .tt {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.crit-list li::before { background: var(--ink-blue) }

.risk-badge {
  font-size: 11px;
  letter-spacing: 0.12em;
  background: var(--red);
}
.risk-step .dot {
  background: var(--cream);
  border: 1px solid var(--border);
  color: var(--ink-blue);
  font-size: 11px;
  font-weight: 700;
}

.ba-badge {
  font-size: 10px;
  letter-spacing: 0.08em;
}
.ba-badge.red {
  background: rgba(192, 57, 43, 0.1);
  color: var(--red);
}
.ba-badge.green {
  background: rgba(45, 106, 79, 0.1);
  color: var(--green);
}

.ba-card { background: var(--paper) }
.ba-card.before::before { background: var(--red) }
.ba-card.after::before { background: var(--green) }

.case-gap em { color: var(--ink-blue) }
.case-gap .sym { color: var(--muted-2) }
.detail-link { color: var(--ink-blue); border-bottom: 1px solid var(--ink-blue) }