/* ============================================================
   K.RIDEUS Design System — Vanilla Rebuild
   Phase 1: Unified Tokens
   Phase 2: Component System
   Phase 3: Premium Details
   ============================================================ */

/* --- RESET & BASE --- */
[hidden] { display: none !important; }

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* 다크 히어로/푸터 + 라이트 콘텐츠/상세 영역 혼합 구조 → 둘 다 지원 명시.
     네이티브 폼 컨트롤·스크롤바는 시스템 설정에 따라 자동 매칭. */
  color-scheme: dark light;

  /* ── Color Tokens (Phase 1) ── */
  --color-accent: #2E5CFF;
  --color-accent-light: #5B8AFF;
  --color-accent-glow: rgba(46, 92, 255, 0.35);

  --color-bg: #0F1115;
  --color-bg-deep: #080A0E;
  --color-bg-card: #282c35;
  --color-bg-light: #F8F9FA;

  --color-text: #FFFFFF;
  --color-text-muted: #94A3B8;
  --color-text-dim: #64748B;
  --color-text-dark: #0F1115;

  /* ── Light Surface Text (밝은 배경용) ── */
  --color-ink: #1c1917;
  --color-ink-secondary: #44403c;
  --color-ink-caption: #a8a29e;

  --color-border: #1E2028;
  --color-border-light: #E5E7EB;
  --color-border-glass: rgba(255, 255, 255, 0.08);

  /* ── Typography ── */
  --font-display: 'Outfit', 'Montserrat', sans-serif;
  --font-body: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

  /* ── Type Scale (responsive)
     mobile 390vw → desktop 1400vw+ targets:
       h1 32 → 48  (페이지 타이틀)
       h2 24 → 36  (섹션 제목)
       h3 18 → 24  (서브 섹션)
     Body sizes stay flat (ensures consistent reading rhythm across
     viewports). All detail-page / hub-page headings inherit automatically. */
  --text-h1: clamp(2rem, 8vw, 3rem);
  --text-h2: clamp(1.5rem, 6vw, 2.25rem);
  --text-h3: clamp(1.125rem, 4vw, 1.5rem);
  --text-body-lg: 1.125rem; /* 18px — 큰 본문 (인트로, 설명) */
  --text-body: 1rem;        /* 16px — 본문 */
  --text-sm: 0.875rem;      /* 14px — 작은 본문 */
  --text-label: 0.8rem;     /* 12.8px — 라벨, 노트 */
  --text-overline: 0.75rem; /* 12px — 오버라인, 태그 */

  /* ── Cool-tone Subpage Tokens ── */
  --color-cool-accent: #7B9CCC;
  --color-cool-accent-light: #A3BDE0;
  --color-cool-muted: #7A8190;
  --color-cool-bg: #0D1017;
  --color-cool-surface: #f2f4f7;
  --color-cool-border: #d8dce3;

  /* ── Spacing ── */
  --container-max: 1216px;
  --container-px: 1.5rem;
  --container-px-md: 2rem;
  --container-px-lg: 3rem;

  /* Section vertical padding — single token, scales by breakpoint */
  --section-py: 5rem;

  /* ── Motion (Phase 2 — Supanova Standard) ── */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.5s;
  --duration-slow: 0.8s;

  /* ── Radius ── */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;

  /* ── Extended Semantic Colors (added 2026-04-14) ── */
  --color-accent-hover: #1E4AD9;
  --color-gold: #FFB800;
  --color-success: #059669;
  --color-warn-bg: #FEF3C7;
  --color-warn-text: #B45309;
  --color-info-bg: #E0E7FF;
  --color-info-text: #4338CA;
  --color-text-secondary-cool: #475569;
  --color-surface-chip: #F1F5F9;

  /* ── Light surface palette (renamed 2026-04-14 v3 — disambiguated from --color-cool-surface) ── */
  --color-bg-slate: #F8FAFC;  /* was --color-surface-cool */
  --color-bg-stone: #fafaf9;  /* was --color-surface-warm */

  /* ── Error / Amber / Text-light tokens (added 2026-04-14 v3) ── */
  --color-error: #EF4444;
  --color-error-bg: rgba(239, 68, 68, 0.1);
  --color-amber-600: #D97706;
  --color-text-light: #CBD5E1;

  /* ── Extended tokens (added 2026-04-17 — design audit) ── */
  --radius-xs: 0.25rem;            /* badge / chip 내 소형 radius */
  --color-bg-elevated: #1a1f2e;   /* gradient 끝값 — dark 고도차 표현 */
  --color-info-border: #dbe4f8;   /* support info-box 테두리 */
  --color-info-surface: #eef3ff;  /* support info-box 배경 시작값 */
  --color-form-border: #e2e8f0;   /* inquiry/form input 테두리 */
  --color-form-label: #334155;    /* form 레이블 텍스트 */
  --color-type-tag: #9ABDFF;      /* matching-type-tag 파란 텍스트 */
  --color-warn-border: #fcd34d;   /* ev-notice 테두리 */
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  /* `clip` instead of `hidden` so html/body don't become scroll containers,
     which would break `position: sticky` for any descendant (e.g. the
     shuttle/private tab bar on detail pages). */
  overflow-x: clip;
}

/* ============================================================
   Keyboard focus — global accessible baseline
   Shows a clear outline for keyboard users while keeping mouse
   interactions clean. Overrides via :focus-visible only.
   ============================================================ */
:focus {
  outline: none;
}
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}
/* Interactive elements get a slightly softer offset */
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible,
[role="tab"]:focus-visible,
summary:focus-visible {
  outline-offset: 3px;
}
/* Form inputs get an inset ring instead */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 0;
  box-shadow: 0 0 0 3px rgba(46, 92, 255, 0.15);
}

/* Skip to main content — hidden until keyboard focused. Accessible shortcut
   so keyboard/screen-reader users can bypass the fixed navbar. */
.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* ============================================================
   Glass Wing — reusable scroll-driven hero-like expansion
   Inspired by anthropic.com. Apply to any element that should
   grow from its container-constrained size to full viewport
   width as the user scrolls into it.
   Graceful fallback: does nothing if browser lacks support.
   ============================================================ */
@supports (animation-timeline: view()) {
  .glass-wing {
    animation: glass-wing-expand linear both;
    animation-timeline: view();
    animation-range: entry 30% cover 55%;
    will-change: margin, min-height, border-radius;
  }
  @keyframes glass-wing-expand {
    from {
      margin-left: 0;
      margin-right: 0;
      min-height: 340px;
      border-radius: var(--radius-lg);
    }
    to {
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      min-height: 75vh;
      border-radius: 0;
    }
  }
  /* Compact variant — lower end height for secondary banners */
  .glass-wing--compact {
    animation: glass-wing-compact-expand linear both;
    animation-timeline: view();
    animation-range: entry 30% cover 55%;
    will-change: margin, min-height, border-radius;
  }
  @keyframes glass-wing-compact-expand {
    from {
      margin-left: 0;
      margin-right: 0;
      min-height: 240px;
      border-radius: var(--radius-lg);
    }
    to {
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      min-height: 52vh;
      border-radius: 0;
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .glass-wing {
      animation: none;
    }
    .glass-wing--compact {
      animation: none;
    }
  }
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  word-break: keep-all;        /* Phase 1: Korean line-break */
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* `clip` instead of `hidden` — see html rule above. Required for sticky
     descendants (detail page Shuttle/Private tabs) to pin to the viewport. */
  overflow-x: clip;
}

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

ul, ol { list-style: none; }

/* ── Container ──
   Horizontal padding pulls from a token (mobile/tablet/desktop) but
   never falls below the device safe-area inset, so notch/landscape
   devices don't clip body content. */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: max(var(--container-px), env(safe-area-inset-left));
  padding-right: max(var(--container-px), env(safe-area-inset-right));
}

@media (min-width: 768px) {
  .container {
    padding-left: max(var(--container-px-md), env(safe-area-inset-left));
    padding-right: max(var(--container-px-md), env(safe-area-inset-right));
  }
}
@media (min-width: 1024px) {
  .container {
    padding-left: max(var(--container-px-lg), env(safe-area-inset-left));
    padding-right: max(var(--container-px-lg), env(safe-area-inset-right));
  }
}

/* Section vertical padding — breakpoint overrides on a single token */
@media (min-width: 768px)  { :root { --section-py: 7rem; } }
@media (min-width: 1024px) { :root { --section-py: 8rem; } }


/* ============================================================
   TYPOGRAPHY SYSTEM (Phase 1 — Unified Scale)
   ============================================================ */
.font-display { font-family: var(--font-display); }

/* ── Scale (2025+ trend: larger, more generous) ──
   Minimum readable: 13px (tags) / 15px (body) / 16px (body-lg)
   ────────────────────────────────────────────────
   Level        Mobile       Desktop      Ratio
   hero         3.25rem(52)  7.5rem(120)  —
   h1           2.25rem(36)  3.5rem(56)   1.0
   h2           1.75rem(28)  2.75rem(44)  0.78
   h3           1.375rem(22) 1.75rem(28)  0.64
   body-lg      1.125rem(18) 1.25rem(20)  —
   body         1rem(16)     1.0625rem(17)—
   label        0.8125rem(13)—            bold+tracking
   caption      0.8125rem(13)—            light
   ──────────────────────────────────────────────── */

.text-hero {
  font-family: var(--font-display);
  font-size: clamp(3.25rem, 8vw, 7.5rem);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.text-h1 {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: 700;
  line-height: 1.1;
  text-wrap: balance;
}

.text-h2 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 700;
  line-height: 1.15;
  text-wrap: balance;
}

.text-h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 600;
  line-height: 1.2;
}

.text-body-lg {
  font-size: var(--text-body-lg);
  line-height: 1.7;
  font-weight: 300;
}

.text-body {
  font-size: var(--text-body);
  line-height: 1.7;
}

.text-label {
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.text-caption {
  font-size: var(--text-label);
  line-height: 1.5;
  color: var(--color-text-dim);
}

/* Korean heading helpers */
h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  word-break: keep-all;
  /* Keep anchor-linked headings clear of the fixed navbar (66px) plus breathing room */
  scroll-margin-top: 80px;
}


/* ============================================================
   BUTTON SYSTEM (Phase 2 — Unified Components)
   ============================================================ */

/* Base button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  transition-property: background, color, border-color, transform, box-shadow;
  transition-duration: var(--duration-normal);
  transition-timing-function: var(--ease-spring);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  min-width: 0;
}

/* Keep desktop buttons single-line (pill aesthetic); mobile allows wrap */
@media (min-width: 768px) {
  .btn {
    white-space: nowrap;
  }
}

/* Phase 3: Click feedback (active 상태만 유지 — hover transform 제거: subpixel jitter 방지) */
.btn:active { transform: scale(0.98); }

/* Primary — Pill solid */
.btn-primary {
  background: var(--color-text);
  color: var(--color-text-dark);
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
}
.btn-primary:hover {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 0 30px var(--color-accent-glow);
}

/* Secondary — Pill outline */
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.5);
}

/* Ghost */
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.05);
  color: var(--color-text);
}

/* Dark variant (on light bg) */
.btn-dark {
  background: var(--color-text-dark);
  color: #fff;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
}
.btn-dark:hover {
  background: var(--color-accent);
  box-shadow: 0 0 30px var(--color-accent-glow);
}

/* Arrow icon inside button */
.btn .arrow {
  transition: opacity var(--duration-normal) var(--ease-spring);
}
.btn:hover .arrow {
  opacity: 0.85;
}


/* ============================================================
   CARD SYSTEM
   2026-04-14 v3: common .card-dark / .card-glass / .card-light
   classes removed. Area-specific cards are canonical:
     .matching-card, .cat-card, .why-card, .dest-card (home)
     .ap-route-card, .ap-usp-card (hub)
     .rd-card (resort/leisure detail)
     .sd-feature-card / .sd-service-card / .sd-other-card (shopping/theme-park/sports detail)
     .sp-service-card / .sp-spotlight-card / .sp-overseas-card / .sp-ticket (sports hub)
     .ev-schedule-card / .ev-poster (event detail)
   ============================================================ */


/* ============================================================
   SECTION HEADER (Phase 2)
   ============================================================ */
.section-header { margin-bottom: 3rem; }

.section-overline {
  display: inline-block;
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  /* Overline is an eyebrow label for the section title immediately below —
     flush stacking (no gap) reinforces the visual grouping. */
  margin-bottom: 0;
}

.section-overline--badge {
  border: 1px solid var(--color-accent);
  padding: 0.25rem 0.75rem;
  color: var(--color-accent);
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
  /* 300 weight felt too light on translucent / light backgrounds (WCAG
     borderline). Bumped to 400 for the body-standard reading rhythm. */
  font-weight: 400;
  line-height: 1.7;
  max-width: 28rem;
}

.section-desc--dark {
  /* Was --color-text-dim (#64748B, ≈4.55:1 on white — AA borderline).
     Switched to --color-text-secondary-cool (#475569, ≈6.94:1) for
     comfortable reading on the light .categories section. */
  color: var(--color-text-secondary-cool);
}


/* ============================================================
   EYEBROW TAG (Phase 3)
   ============================================================ */
.eyebrow-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.6);
}


/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition-property: background, backdrop-filter, -webkit-backdrop-filter, border-color;
  transition-duration: var(--duration-normal);
  transition-timing-function: var(--ease-spring);
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.navbar.scrolled {
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  transition: border-color var(--duration-normal);
}

.navbar.scrolled .navbar-inner {
  border-color: transparent;
}

.navbar-logo {
  height: 2rem;
  width: auto;
  filter: brightness(0) invert(1);
}

@media (min-width: 768px) {
  .navbar-logo { height: 2.5rem; }
  .navbar-inner { padding: 1rem 0; }
}

/* Desktop nav links */
.nav-links {
  display: none;
  align-items: center;
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .nav-links { display: flex; }
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  position: relative;
  transition: color var(--duration-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-spring);
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { width: 100%; }

/* Right actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-support {
  display: none;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  transition: color var(--duration-fast);
}
.nav-support:hover { color: #fff; }
@media (min-width: 768px) { .nav-support { display: block; } }

/* Language selector */
.lang-selector {
  position: relative;
}
.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.6);
  transition: color var(--duration-fast);
}
.lang-btn:hover { color: #fff; }
.lang-btn svg {
  width: 0.75rem;
  height: 0.75rem;
  transition: transform var(--duration-normal);
}
.lang-btn.open svg { transform: rotate(180deg); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 1rem);
  right: 0;
  width: 6rem;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-0.5rem);
  pointer-events: none;
  transition-property: opacity, transform;
  transition-duration: var(--duration-normal);
  transition-timing-function: var(--ease-spring);
}
.lang-dropdown.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  transition: background var(--duration-fast), color var(--duration-fast);
}
.lang-option:hover,
.lang-option.active {
  color: #000;
  background: var(--color-bg-slate);
}

/* Mobile menu button */
.menu-toggle {
  display: block;
  color: #fff;
  padding: 0.25rem;
}
@media (min-width: 1024px) { .menu-toggle { display: none; } }

.menu-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* Mobile overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 200;
  padding-top: 5rem;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s var(--ease-spring), opacity 0.4s var(--ease-spring);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 210;
  color: #fff;
}
.mobile-menu-close svg { width: 2rem; height: 2rem; }

.mobile-nav-link {
  display: block;
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 700;
  color: rgba(255,255,255,0.4);
  padding: 0.75rem 1.5rem;
  transition: color var(--duration-normal), padding-left var(--duration-normal);
}
.mobile-nav-link:hover {
  color: #fff;
  padding-left: 2.5rem;
}


/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  z-index: 0;
  overflow: hidden;
  background: var(--color-bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  will-change: transform;
}
.hero-bg.frames-active {
  transform: none !important;
}
#heroCanvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#heroFallbackImg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) contrast(1.1);
}
#heroCanvas.active ~ #heroFallbackImg {
  display: none;
}

.hero-scroll-spacer {
  position: relative;
  z-index: 1;
  height: 200vh; /* 100vh hero + 100vh animation scroll */
  pointer-events: none;
}
.hero-dimmer {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 1;
  transition: opacity 0.3s;
}
.hero-bg.frames-active .hero-dimmer {
  background: rgba(0,0,0,0.3);
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.65) 0%, rgba(0,0,0,0.3) 35%, rgba(0,0,0,0.35) 70%, #0A0A0A 100%);
  z-index: 2;
}
.hero-bg.frames-active .hero-gradient {
  background: linear-gradient(to bottom, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.15) 35%, rgba(0,0,0,0.2) 70%, #0A0A0A 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  will-change: transform;
}

.hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
  padding: clamp(3rem, 8vh, 5rem) 1.5rem clamp(2rem, 6vh, 4rem);
  padding-left: max(1.5rem, env(safe-area-inset-left));
  padding-right: max(1.5rem, env(safe-area-inset-right));
  padding-top: max(clamp(3rem, 8vh, 5rem), calc(env(safe-area-inset-top) + 2.5rem));
}

@media (min-width: 768px) {
  .hero-inner {
    border-left: 1px solid rgba(255,255,255,0.1);
    padding: clamp(6rem, 14vh, 12rem) 1.5rem 4rem 4rem;
    padding-left: max(4rem, env(safe-area-inset-left));
    padding-right: max(1.5rem, env(safe-area-inset-right));
  }
}

.hero-title {
  margin-bottom: 0.5rem;
  margin-left: -0.05em;
}

.hero-subtitle {
  font-size: clamp(1.5rem, 4vw, 3.75rem);
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .hero-subtitle { margin-bottom: 3rem; }
}

.hero-subtitle .accent {
  font-weight: 500;
  color: var(--color-accent);
}

.hero-desc {
  max-width: 32rem;
  color: var(--color-text-light);
  font-size: clamp(0.875rem, 1.2vw, 1.125rem);
  /* 300 was too thin even on dark hero — bumped to 400 for consistent
     body rhythm across light and dark sections. */
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .hero-desc { margin-bottom: 4rem; }
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .hero-cta {
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 0;
  }
}

/* Landscape phones / very short viewports: shrink hero content to fit within 100dvh */
@media (max-height: 500px) and (orientation: landscape) {
  .hero-inner {
    padding-top: max(2rem, calc(env(safe-area-inset-top) + 1rem));
    padding-bottom: 1.25rem;
  }
  .text-hero {
    font-size: clamp(2rem, 10vh, 3.5rem);
  }
  .hero-title {
    margin-bottom: 0.25rem;
  }
  .hero-subtitle {
    font-size: clamp(1rem, 4.5vh, 1.5rem);
    margin-bottom: 0.75rem;
    line-height: 1.15;
  }
  .hero-desc {
    font-size: 0.8125rem;
    line-height: 1.4;
    margin-bottom: 1rem;
  }
  .hero-cta {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
  }
  .hero-cta .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }
}

/* Short portrait viewports (accessibility large text / small phones) */
@media (max-height: 640px) and (orientation: portrait) {
  .hero-inner {
    padding-top: max(3rem, calc(env(safe-area-inset-top) + 1.5rem));
    padding-bottom: 2rem;
  }
  .hero-subtitle {
    margin-bottom: 1rem;
  }
  .hero-desc {
    margin-bottom: 1.25rem;
  }
  .hero-cta {
    gap: 0.75rem;
    margin-bottom: 2.5rem;
  }
}

/* Scroll indicator */
.scroll-indicator {
  display: flex;
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.45);
  pointer-events: none;
  animation: scrollHint 2s ease-in-out infinite;
}
@media (min-width: 768px) {
  .scroll-indicator { bottom: 1.5rem; gap: 1rem; }
}
.scroll-indicator span {
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
@media (min-width: 768px) {
  .scroll-indicator span { font-size: 0.75rem; }
}
.scroll-indicator .line {
  width: 1px;
  height: 2.5rem;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.5), transparent);
}
@media (min-width: 768px) {
  .scroll-indicator .line { height: 4rem; }
}
@keyframes scrollHint {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.6; }
  50%      { transform: translate(-50%, 6px); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .scroll-indicator { animation: none; }
}


/* ============================================================
   MATCHING LOGIC (Shuttle vs Private)
   ============================================================ */
.matching {
  position: relative;
  z-index: 10;
  margin-top: 0;
  background: rgba(10, 10, 10, 0.65);
  /* 32px blur was heavy on mobile; 12px keeps the glass feel with less
     composite cost. No translateZ(0) — creating an isolation layer here
     caused subpixel drift of card text when the bg-icon scaled on hover. */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--section-py) 0;
}

.matching-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 768px) {
  .matching-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
  }
}

.matching-card {
  position: relative;
  padding: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  /* 제목/아이콘은 고정, 배경 이미지만 hover 확대로 피드백 제공.
     transform 트랜지션 제거 — 매칭 카드 자체는 hover에서 이동하지 않아
     transition spec만 남겨두면 자식의 transform 변경 시 레이어 재계산
     영향으로 텍스트 subpixel jitter 유발 가능. */
  transition: background var(--duration-normal) var(--ease-spring), box-shadow var(--duration-normal) var(--ease-spring), border-color var(--duration-normal) var(--ease-spring);
}
@media (min-width: 768px) {
  .matching-card {
    padding: 3rem;
    border: none;
    border-radius: 0;
  }
  .matching-card:first-child {
    border-right: 1px solid rgba(255,255,255,0.05);
  }
}

.matching-bg-icon {
  position: absolute;
  right: -3rem;
  bottom: -3rem;
  opacity: 0.04;
}
.matching-bg-icon svg { width: 18rem; height: 18rem; }

.matching-icon {
  width: 3rem;
  height: 3rem;
  padding: 0.75rem;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.matching-icon svg { width: 1.5rem; height: 1.5rem; }

.matching-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.matching-type-tag {
  display: inline-block;
  background: rgba(255,255,255,0.05);
  color: var(--color-type-tag);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 2rem;
}

.matching-desc {
  color: var(--color-text-muted);
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  min-height: 3rem;
}

.matching-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.matching-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-light);
}

.feature-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
  flex-shrink: 0;
}


/* ============================================================
   CATEGORIES
   ============================================================ */
.categories {
  position: relative;
  z-index: 10;
  background: #fff;
  padding: var(--section-py) 0;
  overflow: hidden;
}

/* Ambient blobs */
.categories .blob {
  position: absolute;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  pointer-events: none;
}
.categories .blob-1 {
  top: 0; left: 25%;
  background: #DBEAFE;
}
.categories .blob-2 {
  bottom: 0; right: 25%;
  background: #EDE9FE;
}

.categories .section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .categories .section-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    text-align: left;
  }
}

.categories .text-h1,
.categories .text-h2 { color: var(--color-text-dark); }

.cat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  position: relative;
  z-index: 1;
}
/* Mobile/tablet: card 3~5 full-width */
.cat-grid > .cat-card:nth-child(3),
.cat-grid > .cat-card:nth-child(4),
.cat-grid > .cat-card:last-child {
  grid-column: 1 / -1;
}
@media (min-width: 1024px) {
  /* Desktop: 2-1-2 배열
     Row1: [01 공항·항만] [02 레저]         (span 3 each)
     Row2: [03 테마파크·쇼핑]               (full-width — EN 타이틀 여유 확보)
     Row3: [04 공연·이벤트] [05 스포츠]     (span 3 each) */
  .cat-grid { grid-template-columns: repeat(6, 1fr); }
  .cat-grid > .cat-card            { grid-column: span 3; }
  .cat-grid > .cat-card:nth-child(3) {
    grid-column: 1 / -1;
    min-height: 18rem;
  }
  .cat-grid > .cat-card:nth-child(4),
  .cat-grid > .cat-card:last-child {
    grid-column: span 3;
    min-height: 14rem;
  }
}

.cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 10rem;
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-spring), border-color var(--duration-normal) var(--ease-spring), background var(--duration-normal) var(--ease-spring);
}
@media (min-width: 768px) {
  .cat-card { min-height: 14rem; }
}

.cat-card:hover {
  border-color: var(--color-accent);
  z-index: 2;
}

.cat-card-bg {
  position: absolute;
  inset: 0;
}
.cat-card-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-spring);
}
.cat-card:hover .cat-card-bg img {
  filter: brightness(1.08);
}
.cat-card-bg .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85), rgba(0,0,0,0.4), transparent);
}

/* Card number */
.cat-number {
  display: none;
  position: relative;
  z-index: 2;
  text-align: right;
  padding: 2.5rem 2.5rem 0 0;
  font-size: 1.25rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.2em;
  transition: color var(--duration-normal);
}
@media (min-width: 768px) { .cat-number { display: block; } }
.cat-card:hover .cat-number { color: #fff; }

/* Card content */
.cat-content {
  position: relative;
  z-index: 2;
  margin-top: auto;
  padding: 0.75rem;
}
@media (min-width: 768px) {
  .cat-content { padding: 2.5rem; }
}

/* hover translate 제거: 타이틀 텍스트가 호버 시 우측으로 미끄러지는
   동작이 subpixel 라운딩을 유발. 호버 피드백은 .cat-view 색 변경과
   .cat-view svg translate(4px) 으로 대체. */
.cat-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
  line-height: 1.2;
  margin-bottom: 0.125rem;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (min-width: 768px) {
  .cat-title { font-size: 1.875rem; margin-bottom: 0.5rem; }
}

.cat-sub {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
@media (min-width: 768px) {
  .cat-sub { font-size: 0.875rem; margin-bottom: 1rem; }
}

.cat-desc {
  display: none;
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 300;
  border-left: 2px solid var(--color-accent-light);
  padding-left: 1rem;
  margin-bottom: 2rem;
  transition: color var(--duration-normal);
  text-shadow: 0 1px 2px rgba(0,0,0,0.4);
}
@media (min-width: 768px) {
  .cat-desc {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}
.cat-card:hover .cat-desc { color: #fff; }

.cat-view {
  display: none;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.6);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color var(--duration-normal);
}
@media (min-width: 768px) { .cat-view { display: flex; } }
.cat-card:hover .cat-view { color: #fff; }
.cat-view svg {
  width: 1rem;
  height: 1rem;
  transition: opacity var(--duration-normal) var(--ease-spring);
}
.cat-card:hover .cat-view svg { opacity: 0.85; }


/* ============================================================
   BRAND VIDEO
   ============================================================ */
.brand-video {
  position: relative;
  z-index: 10;
  background: var(--color-bg);
  padding: var(--section-py) 0;
  overflow: hidden;
}

.brand-video .glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(46,92,255,0.05), transparent);
  pointer-events: none;
}

.video-wrap {
  position: relative;
  max-width: 56rem;
  margin: 0 auto;
}

.video-container {
  position: relative;
  aspect-ratio: 16 / 9;
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
}

.video-container iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.mute-btn {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  z-index: 20;
  padding: 0.625rem;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  color: #fff;
  transition: background var(--duration-fast);
}
.mute-btn:hover { background: rgba(0,0,0,0.8); }
.mute-btn svg { width: 1.25rem; height: 1.25rem; }


/* ============================================================
   WHY US
   ============================================================ */
.why-us {
  position: relative;
  z-index: 10;
  background: var(--color-bg-light);
  padding: var(--section-py) 0;
  overflow: hidden;
}

.why-us .text-h2 { color: var(--color-text-dark); }

/* Subtle grid background */
.why-us .grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(15,17,21,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15,17,21,0.04) 1px, transparent 1px);
  background-size: 4rem 4rem;
  pointer-events: none;
}

.why-grid {
  display: grid;
  gap: 4rem;
}
@media (min-width: 768px) {
  .why-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
  }
}

.why-quote {
  /* On light `.why-us` bg — was --color-text-muted (#94A3B8 ≈2.9:1, FAIL).
     Darkened to secondary-cool (#475569 ≈6.94:1) + weight 400 for
     readable long-form quote. */
  color: var(--color-text-secondary-cool);
  font-size: 1.1875rem;
  font-weight: 400;
  line-height: 1.7;
  border-left: 1px solid var(--color-accent);
  padding-left: 1.5rem;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding-top: 2rem;
  margin-top: 2.5rem;
}

.stat-val {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Feature cards */
.why-cards { display: flex; flex-direction: column; gap: 0.75rem; }

.why-card {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border-light);
  background: #fff;
  transition: border-color var(--duration-normal) var(--ease-spring), box-shadow var(--duration-normal) var(--ease-spring), transform var(--duration-normal) var(--ease-spring);
  cursor: pointer;
}
.why-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 16px 40px rgba(15, 17, 21, 0.12);
}

.why-card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: color var(--duration-normal), border-color var(--duration-normal), background var(--duration-normal);
}
.why-card:hover .why-card-icon {
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.why-card-icon svg { width: 1.25rem; height: 1.25rem; }

.why-card-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  transition: color var(--duration-normal);
}
.why-card:hover .why-card-title { color: var(--color-accent); }

.why-card-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary-cool);
  font-weight: 400;
  line-height: 1.6;
  transition: color var(--duration-normal);
}
.why-card:hover .why-card-desc { color: var(--color-text-dark); }


/* ============================================================
   POPULAR DESTINATIONS — Card Grid (5-up mosaic)
   ============================================================ */
.destinations {
  position: relative;
  z-index: 10;
  background: var(--color-bg-light);
  padding: var(--section-py) 0;
}

/* Section header text: dark (light background) */
.destinations .section-overline--accent { color: var(--color-accent); }
.destinations .text-h2 { color: var(--color-text-dark); }

/* Mosaic grid: 4-column base
   Row 1: [card1 ×2] [card2 ×1] [card3 ×1]
   Row 2: [card4 ×2] [card5 ×2]             */
.dest-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.625rem;
  /* `.section-header { margin-bottom: 3rem }` already provides 48px gap
     above the grid — removing this margin-top eliminates the redundant
     double-spacing (was visually 96px between title and first card). */
}
.dest-card:nth-child(1) { grid-column: span 2; }
.dest-card:nth-child(4),
.dest-card:nth-child(5) { grid-column: span 2; }

/* Card base */
.dest-card {
  position: relative;
  display: block;
  overflow: hidden;
  min-height: 320px;
  text-decoration: none;
  color: #fff;
}
@media (min-width: 1024px) { .dest-card { min-height: 360px; } }

/* Background image */
/* hover scale 제거: scale(1.04) 시 sibling overlay의 타이틀 텍스트가
   subpixel 라운딩으로 1px 시프트되는 현상 발생. 호버 피드백은 화살표
   색 변경(.dest-card-arrow)으로 대체. */
.dest-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Gradient overlay */
.dest-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.82) 0%,
    rgba(0, 0, 0, 0.18) 55%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
}
@media (min-width: 768px) { .dest-card-overlay { padding: 1.5rem; } }


/* Footer: info + arrow — 항상 카드 하단 */
.dest-card-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
}
.dest-card-info { flex: 1; min-width: 0; }

.dest-card-title {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.375rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.375rem;
}
.dest-card-desc {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.5;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Service type tags */
.dest-card-tags {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}
.dest-card-tag {
  font-size: 0.68rem;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 0.22em 0.7em;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Arrow CTA */
.dest-card-arrow {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  transition: background 0.22s, border-color 0.22s;
}
.dest-card-arrow svg { width: 0.9rem; height: 0.9rem; }
.dest-card:hover .dest-card-arrow {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* Mobile: 2-column, first card full-width */
@media (max-width: 767px) {
  .dest-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  .dest-card:nth-child(1) { grid-column: span 2; }
  .dest-card:nth-child(4),
  .dest-card:nth-child(5) { grid-column: span 1; }
  .dest-card { min-height: 220px; }
}


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  z-index: 10;
  background: var(--color-bg-deep);
  padding: 3rem 0 2rem;
  color: #fff;
}
@media (min-width: 768px) { .footer { padding: 6rem 0 3rem; } }

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) {
  .footer-top {
    flex-direction: row;
    justify-content: space-between;
    gap: 3rem;
    margin-bottom: 3rem;
  }
}

.footer-brand { max-width: 20rem; }
.footer-brand-logo {
  height: 2.5rem;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.8;
  margin-bottom: 1.5rem;
}
@media (min-width: 768px) { .footer-brand-logo { height: 3rem; } }

.footer-brand-desc {
  /* Dark footer bg — was --color-text-dim (#64748B, ~4.4:1, AA 경계 +
     weight 300). Bumped to --color-text-light (#CBD5E1, ~11:1) with
     weight 400 for safe reading without overpowering primary links. */
  color: var(--color-text-light);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.footer-socials {
  display: none;
  gap: 1rem;
}
@media (min-width: 768px) { .footer-socials { display: flex; } }
.footer-social-icon {
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(255,255,255,0.08);
  transition: color var(--duration-fast), border-color var(--duration-fast), background var(--duration-fast), opacity var(--duration-fast);
  cursor: pointer;
}
.footer-social-icon:hover {
  background: #fff;
  border-color: #fff;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .footer-links { grid-template-columns: 1fr 1fr 1fr; gap: 3rem; }
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 1rem; }
.footer-col a {
  font-size: 0.9375rem;
  font-weight: 500;
  /* --color-text-dim(#64748B)은 다크 배경 대비 ~4.4:1 경계라 링크로
     쓰기엔 부족. --color-text-light(#CBD5E1)로 승격. hover는 accent. */
  color: var(--color-text-light);
  transition: color var(--duration-fast);
}
.footer-col a:hover { color: var(--color-accent); }

.footer-partner-box {
  padding: 1.5rem;
  border: 1px solid rgba(255,255,255,0.08);
  transition: border-color var(--duration-normal);
  cursor: pointer;
}
.footer-partner-box:hover { border-color: var(--color-accent); }
.footer-partner-title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.footer-partner-link {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  transition: color var(--duration-fast);
}
.footer-partner-box:hover .footer-partner-link { color: var(--color-accent); }

/* Mobile partner */
.footer-partner-mobile {
  display: block;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}
@media (min-width: 768px) { .footer-partner-mobile { display: none; } }
.footer-partner-mobile-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1.5rem 2rem;
  border: 1px solid rgba(255,255,255,0.08);
  transition: border-color var(--duration-normal);
  cursor: pointer;
}
.footer-partner-mobile-box:hover { border-color: var(--color-accent); }

.footer-partners-desktop { display: none; }
@media (min-width: 768px) { .footer-partners-desktop { display: block; } }

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}
@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    padding-top: 2rem;
  }
}
.footer-bottom p {
  font-size: 0.8125rem;
  font-family: monospace;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
}


/* ============================================================
   SCROLL REVEAL ANIMATIONS (Phase 3 — Staggered Reveal)
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(5rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-5rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Hero entry animations */
.hero .anim-slide-right {
  animation: slideInRight var(--duration-slow) var(--ease-spring) both;
}
.hero .anim-fade-up {
  animation: fadeInUp var(--duration-slow) var(--ease-spring) both;
}

/* Stagger delay utilities (Phase 3 v3 — extracted from index.html inline styles) */
.anim-delay-0 { animation-delay: 0s; }
.anim-delay-1 { animation-delay: 0.2s; }
.anim-delay-2 { animation-delay: 0.4s; }
.anim-delay-3 { animation-delay: 0.6s; }
.anim-delay-4 { animation-delay: 0.8s; }

/* Section header helpers (Phase 3 v3) */
.section-header--center { text-align: center; margin-bottom: 4rem; }
.section-header--center .section-desc { margin: 1.5rem auto 0; text-align: center; }
.section-header--compact { text-align: center; }
.section-header--compact .section-desc { margin: 1rem auto 0; text-align: center; }
.section-header .text-h1,
.section-header .text-h2 { margin-top: 1rem; }
.section-header--compact .text-h2 { margin-top: 1rem; }

/* Text helpers on dark overlay cards (Phase 3 v3) */
.text-on-dark { color: #fff; }
.section-overline--accent { color: var(--color-accent); }
.text-on-light-dark { color: var(--color-text-dark); }

/* Stacking context helper for absolute-background containers (Phase 3 v3) */
.z-stack { position: relative; z-index: 1; }

/* why-quote spacing helper (Phase 3 v3) */
.why-quote--spaced { margin-top: 2.5rem; }
.text-h2--spaced { margin-top: 0.5rem; }

/* Section desc spacing + VS separator (Phase 3 v3) */
.section-desc--spaced { margin-top: 1.5rem; }
.vs-separator {
  font-weight: 300;
  color: var(--color-text-dim);
}

/* Scroll-triggered reveal */
.reveal {
  opacity: 0;
  transform: translateY(2rem);
  transition:
    opacity var(--duration-slow) var(--ease-spring),
    transform var(--duration-slow) var(--ease-spring);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children (Phase 3) */
.stagger-children .reveal:nth-child(1) { transition-delay: 0ms; }
.stagger-children .reveal:nth-child(2) { transition-delay: 80ms; }
.stagger-children .reveal:nth-child(3) { transition-delay: 160ms; }
.stagger-children .reveal:nth-child(4) { transition-delay: 240ms; }
.stagger-children .reveal:nth-child(5) { transition-delay: 320ms; }
.stagger-children .reveal:nth-child(6) { transition-delay: 400ms; }
.stagger-children .reveal:nth-child(7) { transition-delay: 480ms; }


/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

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

/* Hide scrollbar utility */
.hide-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
.hide-scrollbar::-webkit-scrollbar { display: none; }