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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Load intro (js/animations.js) locks scroll while the hero rises/grows
   in; removed once the intro finishes. */
body.is-loading { overflow: hidden; }

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

a { color: inherit; text-decoration: none; }

h1, h2, h3, p, dl, ul { margin: 0; }

h1, h2, h3 { font-family: var(--font-display); }

/* Korean line-breaking defaults to per-syllable (CJK rule), which can split
   a compound word awkwardly mid-way; keep-all treats space-separated runs
   as unbreakable, matching how Korean text is meant to wrap. */
html[lang="ko"] h1,
html[lang="ko"] h2,
html[lang="ko"] h3,
html[lang="ko"] p { word-break: keep-all; }

h1 {
  font-size: var(--text-h1);
  line-height: 0.98;
  font-weight: 500;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-h2);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--text-h3);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-eyebrow);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sungwon-red);
}

.eyebrow--on-navy { color: var(--sungwon-red); }

.caption {
  font-size: var(--text-caption);
  color: var(--warm-gray);
}

.dimension-number {
  font-family: var(--font-display);
  font-size: var(--text-dimension);
  font-weight: 500;
}

.dimension-number--lg { font-size: var(--text-dimension-lg); }

button { font-family: inherit; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--button-radius);
  font-size: var(--text-button);
  font-weight: 600;
  border: 1.5px solid transparent;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--sungwon-red);
  color: var(--white);
}
.btn-primary:hover { background: var(--sungwon-red-dark); }

.btn-secondary {
  background: transparent;
  color: var(--blueprint-navy);
  border-color: var(--blueprint-navy);
}
.btn-secondary:hover { background: var(--blueprint-navy); color: var(--white); }

.btn-secondary--on-navy {
  background: transparent;
  color: var(--white);
  border-color: rgba(247, 248, 249, 0.5);
}
.btn-secondary--on-navy:hover { background: rgba(247, 248, 249, 0.12); border-color: var(--white); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}