/* ==========================================================================
   Geo Moment — Brand Tokens
   v1.0
   ========================================================================== */

:root {
  /* ---------- Brand ---------- */
  --indigo: #3D3DFF;
  --violet: #7B5BFF;
  --grad-brand: linear-gradient(135deg, #3D3DFF 0%, #7B5BFF 100%);

  /* ---------- Neutrals ---------- */
  --ink-900: #0B0B0F;
  --ink-700: #2A2A33;
  --ink-500: #5A5A66;
  --ink-300: #9A9AA3;
  --ink-100: #E8E8EA;     /* 살짝 더 차가운 톤 */
  --ink-50:  #F5F5F7;     /* 매우 옅은 그레이 (섹션 구분용) */
  --bone:    #FFFFFF;     /* ⭐ 페이지 배경 → 순백 */
  --snow:    #FFFFFF;

  /* ---------- Accent tints ---------- */
  --indigo-50: #EEEEFF;

  /* ---------- Semantic ---------- */
  --success: #16A34A;
  --warning: #D97706;
  --error:   #DC2626;
  --info:    #3D3DFF;

  /* ---------- Typography ---------- */
  /* 한글 fallback에 Pretendard 명시 — 영문(Manrope/JetBrains Mono)은 한글 글리프 없음 */
  --font-display: 'Manrope', 'Pretendard', system-ui, -apple-system, sans-serif;
  --font-body:    'Pretendard', 'Inter', system-ui, sans-serif;
  --font-korean:  'Pretendard', -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'IBM Plex Mono', 'Pretendard', ui-monospace, monospace;

  /* ---------- Type scale ---------- */
  --fs-display:  72px;
  --fs-h1:       56px;
  --fs-h2:       40px;
  --fs-h3:       28px;
  --fs-body-lg:  18px;
  --fs-body:     16px;
  --fs-caption:  14px;
  --fs-micro:    12px;

  /* ---------- Spacing ---------- */
  --sp-1:   4px;
  --sp-2:   8px;
  --sp-3:   12px;
  --sp-4:   16px;
  --sp-5:   24px;
  --sp-6:   32px;
  --sp-7:   48px;
  --sp-8:   64px;
  --sp-9:   96px;
  --sp-10:  128px;
  --sp-11:  192px;

  /* ---------- Radius ---------- */
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 16px;

  /* ---------- Shadow ---------- */
  --shadow-sm: 0 1px 2px rgba(11, 11, 15, 0.06);
  --shadow-md: 0 4px 16px rgba(11, 11, 15, 0.08);
  --shadow-lg: 0 12px 40px rgba(11, 11, 15, 0.12);

  /* ---------- Layout ---------- */
  --container: 1200px;
  --section-py-desktop: 128px;
  --section-py-mobile: 80px;
}

/* ==========================================================================
   Base type styles
   ========================================================================== */

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink-900);
  background: var(--bone);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink-900);
}

h1 {
  font-size: var(--fs-h1);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.display {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.eyebrow {
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-500);
}

/* ==========================================================================
   Buttons (reference)
   ========================================================================== */

.btn-primary {
  background: var(--grad-brand);
  color: var(--snow);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 24px;
  border-radius: var(--r-md);
  border: 0;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--ink-900);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 24px;
  border-radius: var(--r-md);
  border: 1px solid var(--ink-100);
  cursor: pointer;
}
.btn-secondary:hover {
  border-color: var(--ink-900);
}

/* ==========================================================================
   Dark section override
   ========================================================================== */

.dark {
  background: var(--ink-900);
  color: var(--bone);
}
.dark h1, .dark h2, .dark h3 { color: var(--bone); }
.dark .eyebrow { color: var(--ink-300); }
.dark .btn-secondary {
  color: var(--bone);
  border-color: rgba(245, 244, 240, 0.15);
}
.dark .btn-secondary:hover { border-color: var(--bone); }

/* ==========================================================================
   Gradient text (use sparingly — H1/Display only)
   ========================================================================== */

.text-gradient {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}