/* ============================================================
   QUENTIN COSSON — Strategic Intercultural Consultant
   v3 — "Ink & Gold" : sober palette, native scroll, GPU-friendly
   ============================================================ */

:root {
  --ink: #07090f;
  --ink-2: #0b0e17;
  --ink-3: #121726;
  --paper: #f5eedd;
  --paper-2: #eadfc6;
  --gold: #d8b25c;
  --gold-2: #eed9a4;
  --gold-dim: rgba(216, 178, 92, 0.14);
  --vermillion: #cf5b46;          /* hanko seal red — used sparingly */
  --vermillion-2: #e8907f;
  --vermillion-dim: rgba(207, 91, 70, 0.13);
  --steel: #7d8fc0;               /* muted France blue — used sparingly */
  --steel-2: #a8b6dd;
  --steel-dim: rgba(125, 143, 192, 0.13);
  --text: #ece7db;
  --muted: #97a0b3;
  --line: rgba(216, 178, 92, 0.18);
  --glass: rgba(18, 23, 38, 0.6);
  --font-display: 'Playfair Display', 'Noto Serif JP', serif;
  --font-body: 'Outfit', 'Noto Sans JP', sans-serif;
  --nav-h: 76px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* 100% native scroll — no JS smoothing, ever */
html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

section, header.hero { scroll-margin-top: calc(var(--nav-h) - 8px); }

::selection { background: var(--gold); color: var(--ink); }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: #2a3147; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* film grain — tiled texture, steps() transform only (cheap) */
.grain {
  position: fixed; inset: -128px; pointer-events: none; z-index: 9999; opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' width='256' height='256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px; will-change: transform;
  animation: grain 9s steps(6) infinite;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-48px, 32px); }
  40% { transform: translate(32px, -48px); }
  60% { transform: translate(-32px, -32px); }
  80% { transform: translate(48px, 48px); }
}

/* custom cursor */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 10000;
  border-radius: 50%; transform: translate(-50%, -50%);
}
.cursor-dot { width: 6px; height: 6px; background: var(--gold); }
.cursor-ring {
  width: 36px; height: 36px; border: 1px solid rgba(216, 178, 92, 0.5);
  transition: width 0.25s, height 0.25s, border-color 0.25s, background 0.25s;
}
body.cursor-hover .cursor-ring {
  width: 58px; height: 58px;
  background: rgba(216, 178, 92, 0.08); border-color: var(--gold);
}
@media (hover: none), (max-width: 900px) {
  .cursor-dot, .cursor-ring { display: none; }
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
:is(a, button):focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* ============ NAV ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: clamp(12px, 2vw, 28px);
  padding: 0 clamp(16px, 4vw, 56px);
  transition: background 0.4s, border-color 0.4s, transform 0.5s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 9, 15, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav.nav-hidden { transform: translateY(-110%); }

.nav-logo { display: flex; align-items: center; gap: 13px; flex-shrink: 0; }
.nav-monogram {
  width: 44px; height: 44px; flex-shrink: 0; border: 1px solid var(--gold);
  display: grid; place-items: center; overflow: hidden;
  font-family: var(--font-display); font-size: 17px; color: var(--gold);
  letter-spacing: 1px; position: relative;
  transition: box-shadow 0.4s, background 0.4s, transform 0.7s var(--ease-out);
}
.nav-monogram img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nav-logo:hover .nav-monogram { transform: rotateY(360deg); }
.nav-monogram::after {
  content: ''; position: absolute; inset: 3px; border: 1px solid rgba(216, 178, 92, 0.3);
  pointer-events: none;
}
.nav-logo:hover .nav-monogram { box-shadow: 0 0 22px rgba(216, 178, 92, 0.45); background: var(--gold-dim); }
.nav-name { display: flex; flex-direction: column; line-height: 1.15; white-space: nowrap; }
.nav-name strong { font-family: var(--font-display); font-weight: 600; font-size: 15px; letter-spacing: 0.16em; }
.nav-name small { font-size: 9.5px; letter-spacing: 0.3em; color: var(--muted); text-transform: uppercase; }

/* rigid nav blocks + breakpoints below remove pieces before they overlap */
.nav-links { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); flex-shrink: 0; }
.nav-links a {
  font-size: 12.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted);
  position: relative; padding: 4px 0; transition: color 0.3s; white-space: nowrap;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--gold); transition: width 0.35s var(--ease-out);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--gold-2); }

.nav-right { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 99px; overflow: hidden; flex-shrink: 0; }
.lang-switch button {
  background: none; border: none; color: var(--muted); padding: 7px 11px;
  font-size: 11px; letter-spacing: 0.12em; transition: all 0.3s; white-space: nowrap;
}
.lang-switch button.active { background: var(--gold); color: var(--ink); font-weight: 600; }
.lang-switch button:not(.active):hover { color: var(--gold); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px; border-radius: 3px;
  font-size: 12.5px; letter-spacing: 0.2em; text-transform: uppercase; font-weight: 500;
  border: 1px solid var(--gold); color: var(--gold-2); background: transparent;
  position: relative; overflow: hidden; white-space: nowrap;
  transition: color 0.35s, transform 0.15s var(--ease-out), box-shadow 0.35s, border-color 0.35s;
}
.btn::before {
  content: ''; position: absolute; inset: 0; background: var(--gold);
  transform: scaleX(0); transform-origin: right; transition: transform 0.4s var(--ease-out);
  z-index: -1;
}
.btn:hover { color: var(--ink); box-shadow: 0 10px 34px -10px rgba(216, 178, 92, 0.55); }
.btn:hover::before { transform: scaleX(1); transform-origin: left; }
.btn:active { transform: scale(0.95); }
.btn.solid { background: var(--gold); color: var(--ink); border-color: transparent; }
.btn.solid::before { background: var(--gold-2); }
.btn.small { padding: 10px 18px; font-size: 11px; }

.nav-burger { display: none; background: none; border: none; flex-direction: column; gap: 5px; padding: 8px; flex-shrink: 0; }
.nav-burger span { width: 24px; height: 1.5px; background: var(--gold); transition: 0.3s; }
.nav.menu-open .nav-burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav.menu-open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.menu-open .nav-burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* nav collapse order: CTA first, then links → burger, then the name */
@media (max-width: 1480px) { .nav .nav-cta { display: none; } }
@media (max-width: 1240px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav.menu-open .nav-links {
    display: flex; position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; background: rgba(7, 9, 15, 0.97); padding: 28px;
    border-bottom: 1px solid var(--line); gap: 20px;
  }
}
@media (max-width: 700px) { .nav-name { display: none; } }
@media (max-width: 560px) { .nav-right { gap: 8px; } }

/* ============ HERO ============ */
.hero {
  min-height: 100vh; position: relative;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center; padding: calc(var(--nav-h) + 30px) clamp(20px, 4vw, 56px) 40px;
  background: var(--ink);
  overflow: hidden;
}

/* aurora — two subtle pre-blurred glows, transform-only animation (composited) */
.aurora { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.aurora i {
  position: absolute; border-radius: 50%; filter: blur(85px); opacity: 0.42;
  mix-blend-mode: screen; will-change: transform;
  animation: auroraDrift 28s ease-in-out infinite alternate;
}
.aurora i:nth-child(1) { width: 46vw; height: 46vw; left: 54%; top: -8%; background: radial-gradient(circle, rgba(216,178,92,0.5), rgba(216,178,92,0.14) 55%, transparent 75%); }
.aurora i:nth-child(2) { width: 40vw; height: 40vw; left: -10%; top: 50%; background: radial-gradient(circle, rgba(125,143,192,0.45), rgba(125,143,192,0.12) 55%, transparent 75%); animation-delay: -12s; animation-duration: 34s; }
.aurora i:nth-child(3) { width: 30vw; height: 30vw; left: 30%; top: 64%; background: radial-gradient(circle, rgba(207,91,70,0.36), rgba(207,91,70,0.1) 55%, transparent 75%); animation-delay: -20s; animation-duration: 40s; }
@keyframes auroraDrift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5vw, -4vh) scale(1.15); }
}

.hero-kanji { position: absolute; inset: 0; pointer-events: none; z-index: 1; overflow: hidden; }
.hero-kanji span {
  position: absolute; font-family: 'Noto Serif JP', serif; color: rgba(125, 143, 192, 0.09);
  font-size: clamp(90px, 12vw, 200px); animation: kanjiDrift 18s ease-in-out infinite;
}
.hero-kanji span:nth-child(2) { color: rgba(216, 178, 92, 0.08); animation-delay: -6s; animation-duration: 22s; }
.hero-kanji span:nth-child(3) { color: rgba(207, 91, 70, 0.08); animation-delay: -12s; animation-duration: 26s; }
@keyframes kanjiDrift {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-34px) rotate(2deg); }
}

.hero-content { position: relative; z-index: 3; max-width: 640px; }
.hero-content > * { animation: heroRise 1s var(--ease-out) backwards; }
.hero-content > *:nth-child(1) { animation-delay: 0.15s; }
.hero-content > *:nth-child(2) { animation-delay: 0.25s; }
.hero-content > *:nth-child(3) { animation-delay: 0.35s; }
.hero-content > *:nth-child(4) { animation-delay: 0.45s; }
.hero-content > *:nth-child(5) { animation-delay: 0.55s; }
@keyframes heroRise { from { opacity: 0; transform: translateY(44px); } }
.hero-globe { animation: heroGlobeIn 1.4s 0.35s var(--ease-out) backwards; }
@keyframes heroGlobeIn { from { opacity: 0; transform: scale(0.92); } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 11.5px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--acc, var(--gold));
  margin-bottom: 26px;
}
.eyebrow::before { content: ''; width: 36px; height: 1px; background: var(--acc, var(--gold)); }
.hero h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(40px, 5.6vw, 78px); line-height: 1.06; letter-spacing: -0.01em;
  margin-bottom: 26px;
  perspective: 900px;
}
/* each headline line flips up from the page plane */
.hero h1 > span {
  display: inline-block; transform-origin: 50% 100%;
  animation: lineFlip 1.15s var(--ease-out) backwards;
}
.hero h1 > span:first-child { animation-delay: 0.3s; }
.hero h1 > span.gold { animation-delay: 0.48s; }
@keyframes lineFlip { from { opacity: 0; transform: rotateX(68deg) translateY(36px); } }
.hero h1 .gold {
  background: linear-gradient(100deg, var(--gold) 15%, var(--gold-2) 40%, #fff3d6 50%, var(--gold-2) 60%, var(--gold) 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  background-size: 200% auto; animation: shine 7s linear infinite;
}
@keyframes shine { to { background-position: 200% center; } }
.hero-sub { color: var(--muted); font-size: clamp(15px, 1.3vw, 18px); max-width: 540px; margin-bottom: 38px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats { display: flex; gap: clamp(24px, 3.5vw, 56px); flex-wrap: wrap; }
.stat { border-left: 2px solid var(--gold); padding-left: 18px; transition: transform 0.4s var(--ease-out); }
.stat:hover { transform: translateY(-4px); }
.stat-num {
  font-family: var(--font-display); font-size: clamp(28px, 2.8vw, 42px);
  color: var(--gold); font-weight: 600; line-height: 1.1;
}
.stat-label { font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); max-width: 150px; }

.hero-globe {
  position: relative; height: clamp(460px, 84vh, 880px); z-index: 2;
  display: flex; align-items: center; justify-content: center;
}
/* twin orbit rings — slow counter-rotating gold/steel halos behind the globe */
.hero-globe::before, .hero-globe::after {
  content: ''; position: absolute; inset: 0; margin: auto; border-radius: 50%;
  pointer-events: none; z-index: -1;
}
.hero-globe::before {
  width: min(96%, 720px); aspect-ratio: 1;
  border: 1px dashed rgba(216, 178, 92, 0.22);
  background: radial-gradient(circle, transparent 56%, rgba(216, 178, 92, 0.05) 70%, transparent 80%);
  animation: orbitSpin 90s linear infinite;
}
.hero-globe::after {
  width: min(80%, 600px); aspect-ratio: 1;
  border: 1px solid rgba(125, 143, 192, 0.14);
  animation: orbitSpin 60s linear infinite reverse;
}
@keyframes orbitSpin { to { transform: rotate(360deg); } }

/* starfield — pure CSS dots, twinkle by opacity only */
.hero-stars {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 8% 18%, rgba(238, 217, 164, 0.9), transparent 100%),
    radial-gradient(1px 1px at 22% 64%, rgba(236, 231, 219, 0.7), transparent 100%),
    radial-gradient(1.5px 1.5px at 31% 30%, rgba(168, 182, 221, 0.7), transparent 100%),
    radial-gradient(1px 1px at 44% 80%, rgba(238, 217, 164, 0.6), transparent 100%),
    radial-gradient(2px 2px at 54% 12%, rgba(238, 217, 164, 0.85), transparent 100%),
    radial-gradient(1px 1px at 63% 48%, rgba(236, 231, 219, 0.65), transparent 100%),
    radial-gradient(1.5px 1.5px at 71% 75%, rgba(168, 182, 221, 0.65), transparent 100%),
    radial-gradient(1px 1px at 78% 26%, rgba(238, 217, 164, 0.75), transparent 100%),
    radial-gradient(2px 2px at 86% 58%, rgba(238, 217, 164, 0.8), transparent 100%),
    radial-gradient(1px 1px at 93% 36%, rgba(236, 231, 219, 0.7), transparent 100%),
    radial-gradient(1px 1px at 15% 88%, rgba(168, 182, 221, 0.55), transparent 100%),
    radial-gradient(1.5px 1.5px at 96% 82%, rgba(238, 217, 164, 0.6), transparent 100%);
  animation: twinkle 5.5s ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: 0.35; } to { opacity: 0.95; } }
/* shooting stars — two streaks on long offset cycles */
.hero-stars::before, .hero-stars::after {
  content: ''; position: absolute; width: 130px; height: 1.5px; border-radius: 99px;
  background: linear-gradient(90deg, rgba(238, 217, 164, 0.95), transparent);
  opacity: 0; transform: rotate(-35deg); will-change: transform, opacity;
  animation: shoot 9s linear infinite;
}
.hero-stars::before { top: 16%; left: 66%; }
.hero-stars::after { top: 54%; left: 16%; animation-delay: 4.6s; animation-duration: 12s; }
@keyframes shoot {
  0%, 87% { opacity: 0; transform: translate(0, 0) rotate(-35deg); }
  90% { opacity: 0.9; }
  100% { opacity: 0; transform: translate(-270px, 189px) rotate(-35deg); }
}
#globe { width: 100%; height: 100%; will-change: transform; }
#globe canvas { outline: none; }
.globe-hint {
  position: absolute; bottom: 6px; left: 50%; transform: translateX(-50%);
  font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted);
  display: inline-flex; align-items: center; gap: 9px; white-space: nowrap;
  padding: 8px 16px; border-radius: 99px; max-width: 92%;
  background: rgba(7, 9, 15, 0.7); border: 1px solid var(--line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.globe-hint::before { content: '◈'; color: var(--gold); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: 0.3; } }

.globe-tooltip {
  display: flex; align-items: center; gap: 10px;
  background: rgba(7, 9, 15, 0.92); border: 1px solid var(--gold);
  padding: 8px 14px; border-radius: 4px; font-family: var(--font-body);
  font-size: 13px; color: var(--text); letter-spacing: 0.06em; white-space: nowrap;
}
.globe-tooltip img { width: 24px; height: auto; border-radius: 2px; }

.scroll-cue {
  position: absolute; bottom: 28px; left: clamp(20px, 4vw, 56px); z-index: 3;
  display: flex; align-items: center; gap: 14px; color: var(--muted);
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
}
.scroll-cue .line { width: 1px; height: 48px; background: var(--line); position: relative; overflow: hidden; }
.scroll-cue .line::after {
  content: ''; position: absolute; top: -50%; left: 0; width: 100%; height: 50%;
  background: linear-gradient(180deg, var(--gold), transparent); animation: scrollLine 2s var(--ease-out) infinite;
}
@keyframes scrollLine { to { top: 110%; } }

@media (max-width: 980px) {
  /* minmax(0,…) so a wide child (globe canvas, calendar) can never inflate the column */
  .hero { grid-template-columns: minmax(0, 1fr); padding-top: calc(var(--nav-h) + 16px); }
  .hero-globe { height: clamp(360px, 62vw, 520px); order: -1; margin-bottom: 26px; }
  .scroll-cue { display: none; }
  .globe-hint { white-space: normal; text-align: center; width: min(92%, 420px); }
}

/* ============ SECTIONS ============ */
section { position: relative; }

.section-pad { padding: clamp(80px, 10vw, 150px) clamp(20px, 5vw, 72px); }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head .eyebrow { justify-content: center; }
.section-head .eyebrow::after { content: ''; width: 36px; height: 1px; background: var(--acc, var(--gold)); }
.section-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(30px, 4vw, 52px); line-height: 1.15; margin-bottom: 14px;
  position: relative; display: inline-block; padding-bottom: 16px;
}
.section-title::after {
  content: ''; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 76px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), var(--gold-2), var(--gold), transparent);
  background-size: 200% auto; animation: shine 4s linear infinite;
}
.section-sub { color: var(--muted); font-size: 16px; }

/* reveals — hidden only when JS is on; IntersectionObserver adds .in
   (cards rise out of the page plane: perspective + rotateX) */
.js .reveal {
  opacity: 0; transform: perspective(1000px) rotateX(9deg) translateY(48px);
  transform-origin: 50% 0;
  transition: opacity 0.95s var(--ease-out), transform 0.95s var(--ease-out);
}
.js .reveal.in { opacity: 1; transform: none; }

/* ============ MARQUEE ============ */
.marquee-section {
  padding: 60px 0; overflow: hidden; background: var(--ink-2);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.marquee-title { text-align: center; margin-bottom: 36px; font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); padding: 0 20px; }
.marquee { display: flex; overflow: hidden; user-select: none;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee + .marquee { margin-top: 22px; }
.marquee-track { display: flex; gap: 14px; padding-right: 14px; flex-shrink: 0; min-width: 100%; animation: marquee 60s linear infinite; will-change: transform; }
.marquee.reverse .marquee-track { animation-direction: reverse; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-100%); } }
.flag-chip {
  display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0;
  border: 1px solid var(--line); border-left: 3px solid var(--gold); background: var(--glass);
  padding: 12px 20px; border-radius: 99px; font-size: 14px; letter-spacing: 0.06em;
  transition: border-color 0.3s, transform 0.3s, background 0.3s;
}
.flag-chip:nth-child(3n+2) { border-left-color: var(--vermillion); }
.flag-chip:nth-child(3n) { border-left-color: var(--steel); }
.flag-chip:hover { border-color: var(--gold); transform: translateY(-3px) scale(1.04); background: var(--gold-dim); }
.flag-chip img { width: 26px; height: auto; border-radius: 2px; box-shadow: 0 0 0 1px rgba(255,255,255,0.08); }

/* ============ LANGUAGES ============ */
.lang-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 2.5vw, 36px); max-width: 1180px; margin: 0 auto; }
.lang-card {
  position: relative; border: 1px solid var(--line); border-top: 3px solid var(--gold);
  border-radius: 8px; padding: clamp(32px, 4vw, 56px); overflow: hidden;
  background: var(--ink-2); will-change: transform;
  transition: border-color 0.5s, box-shadow 0.5s;
}
.lang-card.card-fr {
  border-top-color: var(--steel);
  background: linear-gradient(160deg, rgba(125, 143, 192, 0.12), var(--ink-2) 55%);
}
.lang-card.card-fr:hover { border-color: var(--steel); box-shadow: 0 30px 80px -28px rgba(125, 143, 192, 0.4); }
.lang-card.card-fr .lang-native { color: var(--steel-2); }
.lang-card.card-fr .tag { color: var(--steel-2); border-color: rgba(125, 143, 192, 0.35); background: var(--steel-dim); }
.lang-card.card-fr .kanji-bg { color: rgba(125, 143, 192, 0.1); }
.lang-card.card-jp {
  border-top-color: var(--vermillion);
  background: linear-gradient(160deg, rgba(207, 91, 70, 0.12), var(--ink-2) 55%);
}
.lang-card.card-jp:hover { border-color: var(--vermillion); box-shadow: 0 30px 80px -28px rgba(207, 91, 70, 0.4); }
.lang-card.card-jp .lang-native { color: var(--vermillion-2); }
.lang-card.card-jp .tag { color: var(--vermillion-2); border-color: rgba(207, 91, 70, 0.35); background: var(--vermillion-dim); }
.lang-card.card-jp .kanji-bg { color: rgba(207, 91, 70, 0.1); }
.lang-card .kanji-bg {
  position: absolute; right: -20px; bottom: -50px; font-family: var(--font-display);
  font-size: clamp(160px, 18vw, 280px); line-height: 1;
  pointer-events: none; transition: transform 0.7s var(--ease-out);
}
/* glass sheen sweeping across the card on hover */
.lang-card::after {
  content: ''; position: absolute; top: -40%; bottom: -40%; left: -90px; width: 70px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  transform: rotate(14deg); transition: transform 1.1s var(--ease-out); pointer-events: none;
}
.lang-card:hover::after { transform: translateX(1150%) rotate(14deg); }
.lang-card:hover .kanji-bg { transform: translateY(-12px) rotate(-3deg); }
.lang-flag { width: 64px; border-radius: 4px; margin-bottom: 26px; box-shadow: 0 8px 30px rgba(0,0,0,0.5); }
.lang-card h3 { font-family: var(--font-display); font-size: clamp(26px, 2.6vw, 38px); font-weight: 600; }
.lang-native { font-size: 15px; letter-spacing: 0.2em; margin: 4px 0 18px; }
.lang-card p { color: var(--muted); font-size: 15.5px; margin-bottom: 26px; max-width: 420px; }
.lang-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.tag {
  font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px solid var(--line); color: var(--gold-2);
  padding: 7px 14px; border-radius: 99px; background: var(--gold-dim);
}
@media (max-width: 860px) { .lang-grid { grid-template-columns: minmax(0, 1fr); } }

/* ============ BOOK — fullscreen scroll cinema (sticky, no pin library) ============ */
.book-section {
  height: 760vh;            /* scroll runway: zoom + 5 leaf turns */
  position: relative;
  background: var(--ink);
}
.book-sticky {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  overflow: hidden;
}
/* warm reading light */
.book-ambient {
  position: absolute; inset: -10%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(1100px 760px at 50% 44%, rgba(216, 178, 92, 0.13), transparent 64%),
    radial-gradient(1400px 900px at 50% 50%, #131829, #090b14 75%, var(--ink));
}
.book-vignette {
  position: absolute; inset: 0; pointer-events: none; z-index: 4; opacity: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 48%, transparent 50%, rgba(2, 3, 8, 0.93) 100%);
  will-change: opacity;
}
.book-dust { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.book-dust i {
  position: absolute; width: 4px; height: 4px; border-radius: 50%;
  background: var(--gold); opacity: 0;
  animation: dustFloat 11s linear infinite;
}
@keyframes dustFloat {
  0% { transform: translateY(20px) scale(0.6); opacity: 0; }
  12% { opacity: 0.4; }
  85% { opacity: 0.14; }
  100% { transform: translateY(-58vh) scale(1.1); opacity: 0; }
}

.book-head {
  text-align: center; padding: 0 20px; position: absolute; top: max(10vh, 90px);
  left: 0; right: 0; z-index: 5; will-change: opacity, transform;
}
.book-head .eyebrow { justify-content: center; }
.book-head .eyebrow::before, .book-head .eyebrow::after { content: ''; width: 36px; height: 1px; background: var(--gold); }
.book-head h2 { font-family: var(--font-display); font-size: clamp(26px, 3.4vw, 44px); font-weight: 600; }

.book-stage {
  perspective: 2200px; perspective-origin: 50% 42%;
  width: min(96vw, 1240px); height: min(82vh, 760px);
  display: flex; align-items: center; justify-content: center; position: relative; z-index: 2;
}
/* the whole 3D scene levitates and sways while the book is at rest —
   a clearly visible "hovering in space" motion, not a subtle drift */
.book-stage { transition: transform 0.9s var(--ease-out); }
.book-stage.idle { animation: bookFloat 9s ease-in-out infinite; }
@keyframes bookFloat {
  0%, 100% { transform: translateY(0) rotateY(-8deg) rotateX(1deg); }
  25% { transform: translateY(-14px) rotateY(0deg) rotateX(3.5deg); }
  50% { transform: translateY(-24px) rotateY(8deg) rotateX(1deg); }
  75% { transform: translateY(-12px) rotateY(0deg) rotateX(-1.5deg); }
}
/* golden burst the instant the cover opens */
.book-sticky.flash .book-ambient { animation: ambientFlash 0.95s var(--ease-out); }
@keyframes ambientFlash {
  18% { filter: brightness(2.6) saturate(1.3); }
  100% { filter: none; }
}
/* slow god rays fanning out behind the book */
.book-rays {
  position: absolute; inset: -30%; z-index: 1; pointer-events: none; opacity: 0.85;
  background: repeating-conic-gradient(from 0deg at 50% 46%,
    transparent 0deg 13deg, rgba(216, 178, 92, 0.05) 13deg 17deg, transparent 17deg 30deg);
  -webkit-mask-image: radial-gradient(ellipse 52% 48% at 50% 46%, #000 18%, transparent 68%);
  mask-image: radial-gradient(ellipse 52% 48% at 50% 46%, #000 18%, transparent 68%);
  animation: raysSpin 90s linear infinite; will-change: transform;
}
@keyframes raysSpin { to { transform: rotate(360deg); } }
/* soft static ground shadow — replaces the per-frame drop-shadow filter */
.book-shadow {
  position: absolute; left: 50%; bottom: 2%; width: 72%; height: 13%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.7), transparent 68%);
  filter: blur(16px); z-index: 0; will-change: transform, opacity;
}
.book {
  position: relative; width: min(94vw, 1180px); aspect-ratio: 760 / 500;
  max-height: 100%; transform-style: preserve-3d;
  will-change: transform; z-index: 1;
}
.book-half {
  position: absolute; top: 0; bottom: 0; width: 50%;
  border-radius: 4px 14px 14px 4px;
}
.book-half.right { left: 50%; background: linear-gradient(90deg, #1d150a, #29200f); box-shadow: inset 4px 0 12px rgba(0,0,0,0.6); }
.book-half.left { left: 0; border-radius: 14px 4px 4px 14px; background: linear-gradient(90deg, #29200f, #1d150a); box-shadow: inset -4px 0 12px rgba(0,0,0,0.6); opacity: 0; will-change: opacity; }
.book-half::before {
  content: ''; position: absolute; top: 4px; bottom: 4px; width: 9px; right: 2px;
  background: repeating-linear-gradient(180deg, #f1e7d0 0 2px, #cfc09c 2px 3px);
  border-radius: 0 10px 10px 0; opacity: 0.92;
}
.book-half.left::before { right: auto; left: 2px; border-radius: 10px 0 0 10px; }
.book-half::after {
  content: ''; position: absolute; top: 4px; bottom: 4px; width: 2px; right: 1px;
  background: linear-gradient(180deg, var(--gold-2), var(--gold), var(--gold-2));
  opacity: 0.65; border-radius: 2px;
}
.book-half.left::after { right: auto; left: 1px; }
.book-spine {
  position: absolute; top: -5px; bottom: -5px; left: calc(50% - 8px); width: 16px; z-index: 60;
  background: linear-gradient(90deg, #140e05, #332711 50%, #140e05);
  border-radius: 5px; box-shadow: 0 0 18px rgba(0, 0, 0, 0.8);
}
.book-spine::after {
  content: ''; position: absolute; left: 50%; top: 16px; bottom: 16px; width: 1px;
  background: linear-gradient(180deg, transparent, var(--gold), transparent); opacity: 0.55;
}
.book-ribbon {
  position: absolute; top: -6px; left: 72%; width: 22px; height: 38%;
  background: linear-gradient(180deg, var(--vermillion), #a8412f);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 88%, 0 100%);
  z-index: 5; box-shadow: 0 6px 16px rgba(0,0,0,0.45);
}

.leaf {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 50%;
  transform-style: preserve-3d; transform-origin: left center;
  will-change: transform;
}
.face {
  position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  border-radius: 4px 12px 12px 4px; overflow: hidden;
  padding: clamp(16px, 3.4vw, 40px) clamp(16px, 3.2vw, 38px);
  display: flex; flex-direction: column;
}
.face.back { transform: rotateY(180deg); border-radius: 12px 4px 4px 12px; }
.face .shade {
  position: absolute; inset: 0; pointer-events: none; opacity: 0; will-change: opacity; z-index: 2;
}
/* fold shadow + sheen pool at the grabbed corner (top-right on front faces,
   mirrored to top-left on back faces) so the page reads as peeled from the corner */
.face.front .shade {
  background:
    radial-gradient(135% 120% at 100% 0%, rgba(8, 5, 2, 0.6), rgba(8, 5, 2, 0.18) 42%, transparent 64%),
    linear-gradient(90deg, rgba(8, 5, 2, 0.4), transparent 60%);
}
.face.back .shade {
  background:
    radial-gradient(135% 120% at 0% 0%, rgba(8, 5, 2, 0.6), rgba(8, 5, 2, 0.18) 42%, transparent 64%),
    linear-gradient(-90deg, rgba(8, 5, 2, 0.4), transparent 60%);
}
.face .gleam {
  position: absolute; inset: 0; pointer-events: none; opacity: 0; will-change: opacity; z-index: 2;
}
.face.front .gleam { background: radial-gradient(90% 85% at 100% 0%, rgba(255, 250, 235, 0.62), rgba(255, 250, 235, 0.1) 45%, transparent 66%); }
.face.back .gleam { background: radial-gradient(90% 85% at 0% 0%, rgba(255, 250, 235, 0.62), rgba(255, 250, 235, 0.1) 45%, transparent 66%); }

.face.page {
  background:
    repeating-linear-gradient(0deg, transparent 0 26px, rgba(120, 90, 30, 0.045) 26px 27px),
    linear-gradient(90deg, rgba(0,0,0,0.15), transparent 12%),
    linear-gradient(120deg, var(--paper) 0%, var(--paper-2) 100%);
  color: #2a2113;
  box-shadow: inset 0 0 60px rgba(120, 90, 30, 0.12);
}
.face.back.page {
  background:
    repeating-linear-gradient(0deg, transparent 0 26px, rgba(120, 90, 30, 0.045) 26px 27px),
    linear-gradient(-90deg, rgba(0,0,0,0.15), transparent 12%),
    linear-gradient(-120deg, var(--paper) 0%, var(--paper-2) 100%);
}

/* leather cover — deep espresso, gold embossing, foil sheen */
.face.cover {
  background:
    radial-gradient(560px 380px at 50% 32%, rgba(216, 178, 92, 0.16), transparent 70%),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.014) 0 3px, transparent 3px 6px),
    linear-gradient(135deg, #2a1f10, #140e06 55%, #221a0c);
  border: 1px solid rgba(216, 178, 92, 0.5);
  color: var(--gold-2);
  align-items: center; justify-content: center; text-align: center;
  gap: clamp(6px, 1.5vh, 13px);
}
.face.cover::after {
  content: ''; position: absolute; top: -60%; bottom: -60%; width: 70px;
  background: linear-gradient(90deg, transparent, rgba(238, 217, 164, 0.11), transparent);
  transform: rotate(16deg); left: -90px; animation: coverSheen 5.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes coverSheen { 45%, 100% { left: 120%; } }
.cover-frame { position: absolute; inset: 12px; border: 1px solid rgba(216, 178, 92, 0.45); border-radius: 8px; pointer-events: none; }
.cover-frame::after { content: ''; position: absolute; inset: 5px; border: 1px solid rgba(216, 178, 92, 0.2); border-radius: 5px; }
.cover-corner { position: absolute; font-size: 14px; color: var(--gold); opacity: 0.85; }
.cover-corner.tl { top: 20px; left: 22px; } .cover-corner.tr { top: 20px; right: 22px; }
.cover-corner.bl { bottom: 20px; left: 22px; } .cover-corner.br { bottom: 20px; right: 22px; }
.cover-monogram {
  width: 70px; height: 70px; border: 1px solid var(--gold); display: grid; place-items: center;
  font-family: var(--font-display); font-size: 26px; color: var(--gold); margin-bottom: 6px;
  box-shadow: 0 0 34px rgba(216, 178, 92, 0.28), inset 0 0 14px rgba(216, 178, 92, 0.16);
}
.face.cover h3 {
  font-family: var(--font-display); font-size: clamp(20px, 2.7vw, 36px); font-weight: 600; letter-spacing: 0.06em;
  background: linear-gradient(100deg, var(--gold-2), var(--gold) 45%, #fff3d6 60%, var(--gold-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  background-size: 200% auto; animation: shine 6s linear infinite;
}
.face.cover .cover-sub { font-size: 11px; letter-spacing: 0.34em; text-transform: uppercase; color: var(--muted); }
.face.cover .cover-jp { font-family: 'Noto Serif JP', serif; color: var(--gold); letter-spacing: 0.5em; font-size: 13px; }
.cover-arc {
  position: absolute; top: 3.5%; left: 50%; transform: translateX(-50%);
  width: min(38%, 185px); color: rgba(216, 178, 92, 0.5); pointer-events: none;
}
@media (max-height: 720px) { .cover-arc { display: none; } }
.cover-rule { width: clamp(90px, 12vw, 150px); color: var(--gold); opacity: 0.85; flex-shrink: 0; }
.cover-est { font-size: 9px; letter-spacing: 0.52em; text-transform: uppercase; color: rgba(238, 217, 164, 0.55); }

.face.page { --pg: #9a7b2d; }
.page-eyebrow {
  font-size: 9.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--pg);
  margin-bottom: 8px; display: flex; align-items: center; gap: 8px;
}
.page-eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--pg); }
.face.page h4 {
  font-family: var(--font-display); font-size: clamp(16px, 2.2vw, 29px);
  color: #1d1709; line-height: 1.16; margin-bottom: 6px; font-weight: 700;
  letter-spacing: -0.005em;
}
.page-divider { width: clamp(72px, 9vw, 122px); height: 10px; color: var(--pg); opacity: 0.8; margin: 0 0 12px; flex-shrink: 0; }
.face.page p { font-size: clamp(10.5px, 1.25vw, 15px); line-height: 1.6; color: #4a3d24; }
.face.page p + p { margin-top: 7px; }
.face.page .lede {
  font-family: var(--font-display); font-size: clamp(12.5px, 1.55vw, 19px);
  color: #1d1709; font-weight: 500; line-height: 1.42; margin-bottom: 8px;
}
.face.page blockquote {
  font-family: var(--font-display); font-style: italic; font-weight: 500;
  font-size: clamp(12.5px, 1.6vw, 19px); color: #4a3a16; line-height: 1.45;
  border-left: 3px solid var(--pg); padding: 4px 2px 4px 14px; margin: 2px 0 10px;
}
.face.page strong { color: #1d1709; font-weight: 600; }
.face.page ul { list-style: none; margin-top: 6px; }
.face.page li {
  font-size: clamp(10.5px, 1.2vw, 14px); color: #4a3d24; padding: 5px 0 5px 20px;
  position: relative; line-height: 1.5;
  border-bottom: 1px dashed color-mix(in srgb, var(--pg) 22%, transparent);
}
.face.page li:last-child { border-bottom: none; }
.face.page li::before { content: '◆'; position: absolute; left: 0; top: 7px; font-size: 8px; color: var(--pg); }
.page-ghost {
  position: absolute; right: 8px; bottom: -28px; z-index: 0;
  font-family: var(--font-display); font-weight: 700; font-style: italic;
  font-size: clamp(100px, 13vw, 190px); line-height: 1;
  color: rgba(154, 123, 45, 0.09); pointer-events: none; user-select: none;
}
.face.back .page-ghost { right: auto; left: 8px; }
.face.page :is(h4, p, ul, blockquote, .page-eyebrow, .page-divider, .page-price) {
  position: relative; z-index: 1;
}
.page-price {
  margin-top: auto; padding: 9px 14px; align-self: flex-start;
  border: 1px solid color-mix(in srgb, var(--pg) 50%, transparent); border-radius: 3px;
  background: color-mix(in srgb, var(--pg) 9%, transparent);
  font-family: var(--font-display); font-size: clamp(11.5px, 1.4vw, 16px); color: #7a5f1e; font-weight: 700;
  letter-spacing: 0.02em;
}
.page-num { position: absolute; bottom: 10px; font-size: 9px; letter-spacing: 0.2em; color: #9a8a5e; }
.face.front .page-num { right: 16px; }
.face.back .page-num { left: 16px; }
.page-kanji-stamp {
  position: absolute; right: 14px; top: 14px; font-family: 'Noto Serif JP', serif;
  color: #b3402e; border: 1.5px solid #b3402e;
  border-radius: 4px; padding: 4px 6px; font-size: 11px; writing-mode: vertical-rl; letter-spacing: 0.3em;
  opacity: 0.85;
}

.book-progress {
  position: absolute; bottom: max(4.5vh, 30px); left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 14px; z-index: 5;
}
.book-progress .bar { width: min(46vw, 320px); height: 2px; background: rgba(216, 178, 92, 0.18); border-radius: 2px; overflow: hidden; }
.book-progress .bar i {
  display: block; height: 100%; width: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-2));
  transform: scaleX(0); transform-origin: left; will-change: transform;
}
.book-progress span { font-size: 10.5px; letter-spacing: 0.25em; text-transform: uppercase; color: var(--muted); min-width: 52px; }

/* ============ BOOK — mobile reading mode ============
   Taller, near-fullscreen book so each page column is genuinely readable in portrait. */
@media (max-width: 760px) {
  .book-section { height: 600vh; }
  .book-stage { perspective: 1250px; height: min(86vh, 720px); }
  .book { width: 96vw; aspect-ratio: 1 / 1.15; }
  .book-ribbon { display: none; }
  .face { padding: 14px 12px 16px; border-radius: 3px 9px 9px 3px; }
  .face.back { border-radius: 9px 3px 3px 9px; }
  .face.page h4 { font-size: 15.5px; margin-bottom: 4px; line-height: 1.14; }
  .face.page p { font-size: 11px; line-height: 1.5; }
  .face.page p + p { margin-top: 5px; }
  .face.page .lede { font-size: 12.5px; margin-bottom: 6px; }
  .face.page blockquote { font-size: 12.5px; padding-left: 10px; border-left-width: 2px; margin-bottom: 8px; }
  .face.page li { font-size: 11px; padding: 3.5px 0 3.5px 15px; line-height: 1.4; }
  .face.page li::before { top: 6px; font-size: 7px; }
  .page-eyebrow { font-size: 8px; letter-spacing: 0.2em; margin-bottom: 5px; }
  .page-eyebrow::before { width: 14px; }
  .page-divider { width: 64px; margin-bottom: 7px; }
  .page-ghost { font-size: 92px; bottom: -14px; opacity: 0.07; }
  .page-kanji-stamp { font-size: 9.5px; padding: 3px 5px; right: 9px; top: 9px; border-width: 1px; }
  .page-num { font-size: 8px; }
  .page-price { font-size: 11px; padding: 7px 11px; }
  .cover-arc { display: none; }
  .face.cover h3 { font-size: 19px; }
  .face.cover .cover-sub { font-size: 9px; letter-spacing: 0.26em; }
  .face.cover .cover-jp { font-size: 11px; letter-spacing: 0.34em; }
  .cover-monogram { width: 54px; height: 54px; font-size: 20px; margin-bottom: 3px; }
  .cover-rule { width: 90px; }
  .cover-frame { inset: 9px; }
  .cover-corner { font-size: 11px; }
  .cover-corner.tl, .cover-corner.tr { top: 15px; }
  .cover-corner.bl, .cover-corner.br { bottom: 15px; }
  .cover-corner.tl, .cover-corner.bl { left: 16px; }
  .cover-corner.tr, .cover-corner.br { right: 16px; }
  .book-head { top: max(6vh, 56px); }
  .book-head h2 { font-size: 20px; }
  .book-head .eyebrow { font-size: 9px; }
  .book-progress { bottom: max(3vh, 20px); }
  .book-progress .bar { width: 40vw; }
  .book-rays { inset: -60% -30%; }
}

/* ============ OFFERS ============ */
.offers-section {
  background: linear-gradient(180deg, var(--ink) 0%, #0c1019 40%, var(--ink-2));
  border-top: 1px solid var(--line);
  overflow: hidden;
}
/* sections that carry an aurora keep their content above the glow */
.offers-section .section-head, .offers-section .offers-grid,
.booking-section .section-head, .booking-section .booking-wrap {
  position: relative; z-index: 1;
}
.offers-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 30px); max-width: 1180px; margin: 0 auto;
}
.offer-card {
  --oc: var(--gold); --oc-2: var(--gold-2); --oc-dim: var(--gold-dim);
  border: 1px solid var(--line); border-left: 3px solid var(--oc);
  border-radius: 8px; background: linear-gradient(150deg, var(--oc-dim), var(--ink) 45%);
  padding: clamp(28px, 3.4vw, 46px); position: relative; overflow: hidden;
  display: flex; flex-direction: column;
  /* transform driven by JS (3D tilt) — only colors/shadows transition here */
  transition: border-color 0.5s, box-shadow 0.5s;
  will-change: transform;
}
.offer-card.oc-indigo { --oc: var(--steel); --oc-2: var(--steel-2); --oc-dim: var(--steel-dim); }
.offer-card.oc-sakura { --oc: var(--vermillion); --oc-2: var(--vermillion-2); --oc-dim: var(--vermillion-dim); }
.offer-card.oc-jade { --oc: var(--gold); --oc-2: var(--gold-2); --oc-dim: var(--gold-dim); }
.offer-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--oc), transparent);
  opacity: 0; transition: opacity 0.5s;
}
.offer-card::after {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.5s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--oc) 10%, transparent), transparent 65%);
}
.offer-card:hover {
  border-color: color-mix(in srgb, var(--oc) 60%, transparent);
  box-shadow: 0 30px 70px -32px color-mix(in srgb, var(--oc) 45%, transparent);
}
.offer-card:hover::before, .offer-card:hover::after { opacity: 1; }
.offer-badge {
  position: absolute; top: 22px; right: -34px; transform: rotate(45deg);
  background: linear-gradient(90deg, var(--gold), var(--gold-2)); color: var(--ink);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase; padding: 6px 40px;
}
.offer-tag { font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--oc-2); margin-bottom: 12px; }
.offer-card h3 { font-family: var(--font-display); font-size: clamp(22px, 2.3vw, 30px); font-weight: 600; margin-bottom: 18px; }
.offer-card ul { list-style: none; margin-bottom: 24px; }
.offer-card li { padding: 7px 0 7px 26px; position: relative; color: var(--muted); font-size: 14.5px; border-bottom: 1px dashed color-mix(in srgb, var(--oc) 18%, transparent); }
.offer-card li::before { content: '◆'; position: absolute; left: 2px; top: 9px; font-size: 9px; color: var(--oc); }
.offer-card > p { color: var(--muted); font-size: 15px; margin-bottom: 24px; }
.offer-prices { margin-top: auto; display: flex; flex-direction: column; gap: 8px; padding-top: 18px; border-top: 1px solid var(--line); }
.offer-price { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 17px; color: var(--oc-2); }
.offer-price img { width: 22px; border-radius: 2px; }
.offer-cta { margin-top: 24px; align-self: flex-start; }
@media (max-width: 860px) { .offers-grid { grid-template-columns: minmax(0, 1fr); } }

/* ============ BOOKING ============ */
.booking-section {
  background:
    radial-gradient(900px 500px at 85% 8%, rgba(216, 178, 92, 0.07), transparent 60%),
    radial-gradient(700px 450px at 8% 90%, rgba(125, 143, 192, 0.06), transparent 60%),
    var(--ink);
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.booking-wrap { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 44px); }
.booking-panel { border: 1px solid var(--line); border-radius: 8px; background: var(--ink-2); padding: clamp(22px, 3vw, 36px); }
.step-title { font-size: 12px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.step-title::after { content: ''; flex: 1; height: 1px; background: var(--line); }

.service-list { display: grid; gap: 10px; margin-bottom: 34px; }
.service-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: 1px solid var(--line); border-radius: 4px; padding: 14px 18px;
  background: transparent; color: var(--text); text-align: left;
  transition: all 0.3s; font-size: 14.5px;
}
.service-item:hover { border-color: var(--gold); background: var(--gold-dim); transform: translateX(4px); }
.service-item.selected { border-color: var(--gold); background: var(--gold-dim); box-shadow: 0 0 0 1px var(--gold) inset; }
.service-item .s-meta { font-size: 12px; color: var(--muted); white-space: nowrap; }
.service-item.selected .s-meta { color: var(--gold-2); }

.cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.cal-title { font-family: var(--font-display); font-size: 19px; text-transform: capitalize; }
.cal-nav { display: flex; gap: 8px; }
.cal-nav button {
  width: 38px; height: 38px; border: 1px solid var(--line); background: none; color: var(--gold);
  border-radius: 4px; font-size: 16px; transition: all 0.3s;
}
.cal-nav button:hover:not(:disabled) { background: var(--gold); color: var(--ink); }
.cal-nav button:disabled { opacity: 0.3; cursor: not-allowed; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; animation: calFade 0.35s ease; }
@keyframes calFade { from { opacity: 0; transform: translateY(6px); } }
.cal-dow { text-align: center; font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); padding: 6px 0; }
.cal-day {
  aspect-ratio: 1; border: 1px solid transparent; border-radius: 4px; background: none;
  color: var(--text); font-size: 14px; display: grid; place-items: center; position: relative;
  transition: all 0.25s;
}
.cal-day.in-month:not(:disabled):hover { border-color: var(--gold); background: var(--gold-dim); }
.cal-day:disabled { color: #3a4258; cursor: not-allowed; text-decoration: line-through; text-decoration-color: rgba(207, 91, 70, 0.5); }
.cal-day.out { opacity: 0.18; text-decoration: none; }
.cal-day.available::after { content: ''; position: absolute; bottom: 5px; width: 4px; height: 4px; border-radius: 50%; background: var(--gold); }
.cal-day.selected {
  background: var(--gold); color: var(--ink); font-weight: 700; border-color: var(--gold);
  animation: dayPop 0.35s var(--ease-out);
}
@keyframes dayPop { 50% { transform: scale(1.2); } }
.cal-day.selected::after { background: var(--ink); }
.cal-day.today { border-color: rgba(216, 178, 92, 0.4); animation: todayPulse 2.6s ease-in-out infinite; }
@keyframes todayPulse { 50% { box-shadow: 0 0 0 4px rgba(216, 178, 92, 0.12); } }

.slot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 10px; min-height: 60px; }
.slot {
  border: 1px solid var(--line); background: none; color: var(--text); border-radius: 4px;
  padding: 11px 0; font-size: 14px; letter-spacing: 0.06em; transition: all 0.25s;
  animation: slotIn 0.4s var(--ease-out) backwards;
}
.slot:nth-child(2) { animation-delay: 0.04s; } .slot:nth-child(3) { animation-delay: 0.08s; }
.slot:nth-child(4) { animation-delay: 0.12s; } .slot:nth-child(5) { animation-delay: 0.16s; }
.slot:nth-child(6) { animation-delay: 0.2s; } .slot:nth-child(7) { animation-delay: 0.24s; }
.slot:nth-child(n+8) { animation-delay: 0.28s; }
@keyframes slotIn { from { opacity: 0; transform: translateY(8px); } }
.slot:hover { border-color: var(--gold); background: var(--gold-dim); transform: translateY(-2px); }
.slot.selected { background: var(--gold); color: var(--ink); font-weight: 700; border-color: var(--gold); }
.slot-empty { color: var(--muted); font-size: 13.5px; padding: 12px 0; grid-column: 1 / -1; }
.slot-loading { grid-column: 1 / -1; display: flex; justify-content: center; padding: 14px 0; }

.booking-form { display: grid; gap: 14px; margin-top: 8px; }
.booking-form input, .booking-form textarea {
  width: 100%; background: var(--ink); border: 1px solid var(--line); border-radius: 4px;
  color: var(--text); padding: 14px 16px; font-family: inherit; font-size: 14.5px;
  transition: border-color 0.3s, box-shadow 0.3s; resize: vertical;
}
.booking-form input:focus, .booking-form textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(216, 178, 92, 0.12); }
.booking-form ::placeholder { color: #5a6378; }
.booking-summary {
  border: 1px dashed rgba(216, 178, 92, 0.5); border-radius: 4px; padding: 14px 18px;
  font-size: 13.5px; color: var(--gold-2); background: var(--gold-dim);
  display: none; line-height: 1.7;
}
.booking-summary.visible { display: block; }
.booking-success { text-align: center; padding: 40px 10px; display: none; }
.booking-success.visible { display: block; }
.success-ring {
  width: 84px; height: 84px; margin: 0 auto 22px; border-radius: 50%;
  border: 2px solid var(--gold); display: grid; place-items: center;
  font-size: 34px; color: var(--gold-2); animation: pop 0.6s var(--ease-out);
  box-shadow: 0 0 50px -10px rgba(216, 178, 92, 0.45);
}
@keyframes pop { 0% { transform: scale(0); } 70% { transform: scale(1.15); } 100% { transform: scale(1); } }
.booking-success h3 { font-family: var(--font-display); font-size: 26px; margin-bottom: 10px; }
.booking-success p { color: var(--muted); margin-bottom: 26px; }
.form-error { color: var(--vermillion); font-size: 13.5px; display: none; }
.form-error.visible { display: block; }

.spinner {
  width: 22px; height: 22px; border: 2px solid var(--line); border-top-color: var(--gold);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 980px) { .booking-wrap { grid-template-columns: minmax(0, 1fr); } }

/* ============ FOOTER ============ */
.footer {
  background: var(--ink-2); padding: clamp(50px, 7vw, 90px) clamp(20px, 5vw, 72px) 30px;
  border-top: 1px solid var(--gold);
}
.footer-grid { max-width: 1180px; margin: 0 auto 50px; display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer h4 { font-size: 12px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.footer-brand .nav-logo { margin-bottom: 18px; }
.footer-brand p { color: var(--muted); font-size: 14.5px; max-width: 320px; }
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer ul a { color: var(--muted); font-size: 14.5px; transition: color 0.3s, padding-left 0.3s; }
.footer ul a:hover { color: var(--gold); padding-left: 6px; }
.footer-bottom {
  max-width: 1180px; margin: 0 auto; padding-top: 26px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  color: var(--muted); font-size: 12.5px;
}
.footer-bottom a { color: var(--muted); transition: color 0.3s; }
.footer-bottom a:hover { color: var(--gold); }
/* legal / RGPD section */
.footer-legal {
  max-width: 1180px; margin: 50px auto 0; padding-top: 40px;
  border-top: 1px solid var(--line);
}
.legal-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.legal-col h4 {
  font-size: 12px; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 14px;
}
.legal-col p {
  color: var(--muted); font-size: 12.5px; line-height: 1.7; margin-bottom: 10px;
}
.legal-col p strong { color: var(--text); font-weight: 500; }

.footer-bottom-links { display: flex; gap: 20px; align-items: center; }

@media (max-width: 860px) {
  .legal-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 12px; }
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: minmax(0, 1fr); } }

/* ============ EXTRAS ============ */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 100%; z-index: 99;
  background: linear-gradient(90deg, var(--gold), var(--gold-2));
  transform: scaleX(0); transform-origin: left; will-change: transform;
  transition: opacity 0.4s;
}
/* fullscreen book immersion: every fixed UI element gets out of the way */
.book-mode .scroll-progress,
.book-mode .back-top { opacity: 0 !important; visibility: hidden !important; pointer-events: none; }
.sound-toggle {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line);
  background: none; color: var(--muted); display: grid; place-items: center;
  font-size: 15px; transition: all 0.3s; flex-shrink: 0;
}
.sound-toggle:hover { border-color: var(--gold); color: var(--gold); transform: scale(1.08); }
.sound-toggle.muted { opacity: 0.5; }
.back-top {
  position: fixed; bottom: 26px; right: 26px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--line); background: rgba(11, 14, 23, 0.85);
  backdrop-filter: blur(10px); color: var(--gold); font-size: 18px;
  display: grid; place-items: center;
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all 0.4s var(--ease-out);
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { border-color: var(--gold); background: var(--gold-dim); transform: translateY(-4px); }

/* loader */
.loader {
  position: fixed; inset: 0; z-index: 10001; background: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px;
  transition: opacity 0.7s, visibility 0.7s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader .nav-monogram { width: 64px; height: 64px; font-size: 24px; animation: loaderPulse 1.6s ease-in-out infinite; }
@keyframes loaderPulse { 50% { box-shadow: 0 0 40px rgba(216, 178, 92, 0.4); } }
.loader-bar { width: 180px; height: 2px; background: var(--line); overflow: hidden; }
.loader-bar i { display: block; height: 100%; width: 40%; background: linear-gradient(90deg, var(--gold), var(--gold-2)); animation: loaderBar 1.2s var(--ease-out) infinite; }
@keyframes loaderBar { 0% { transform: translateX(-100%); } 100% { transform: translateX(350%); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ===== mobile animation diet: big blurred glows are the main GPU cost ===== */
@media (max-width: 760px) {
  .aurora i { filter: blur(52px); opacity: 0.34; }
  .book-rays, .book-dust { display: none; }
  .hero-stars::before, .hero-stars::after { display: none; }
}


/* ===== APPENDED: La Methode (mobile alternative to the book) ===== */
/* ============ METHOD — 3D pillars coverflow (replaces the book) ============ */
.method {
  position: relative; overflow: hidden;
  padding: clamp(90px, 11vw, 170px) clamp(16px, 5vw, 72px);
  background:
    radial-gradient(900px 600px at 78% 12%, rgba(216,178,92,0.08), transparent 60%),
    radial-gradient(760px 520px at 10% 88%, rgba(125,143,192,0.07), transparent 60%),
    linear-gradient(180deg, var(--ink-2), var(--ink) 55%, var(--ink-2));
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.method-kanji {
  position: absolute; right: -3%; top: 4%; font-family: 'Noto Serif JP', serif;
  font-size: clamp(180px, 26vw, 460px); line-height: 1; color: rgba(216,178,92,0.04);
  pointer-events: none; user-select: none; z-index: 0;
}

/* ---- the creed: giant parallax quote ---- */
.creed { max-width: 1100px; margin: 0 auto clamp(60px, 8vw, 110px); position: relative; z-index: 2; text-align: center; }
.creed .eyebrow { justify-content: center; }
.creed .eyebrow::after { content: ''; width: 36px; height: 1px; background: var(--gold); }
.creed blockquote {
  font-family: var(--font-display); font-weight: 500; font-style: italic;
  font-size: clamp(26px, 4.4vw, 60px); line-height: 1.18; letter-spacing: -0.01em;
  color: var(--text); margin: 18px auto 22px; max-width: 16ch;
}
.creed blockquote .hl {
  background: linear-gradient(100deg, var(--gold) 10%, #fff3d6 50%, var(--gold) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  background-size: 200% auto; animation: shine 7s linear infinite;
}
.creed p { color: var(--muted); font-size: clamp(15px, 1.4vw, 18px); max-width: 60ch; margin: 0 auto; }

/* ---- 5 pillars in 3D coverflow ---- */
.pillars-wrap { position: relative; z-index: 2; perspective: 1600px; perspective-origin: 50% 46%; }
.pillars {
  display: flex; gap: clamp(16px, 1.8vw, 26px); justify-content: center;
  max-width: 1280px; margin: 0 auto; transform-style: preserve-3d;
  transition: transform 0.5s var(--ease-out); will-change: transform; flex-wrap: nowrap;
}
.pillar {
  flex: 1 1 0; min-width: 0; position: relative; overflow: hidden;
  border: 1px solid var(--line); border-top: 2px solid var(--gold);
  border-radius: 12px; padding: clamp(20px, 1.8vw, 30px) clamp(16px, 1.5vw, 24px) clamp(24px, 2vw, 34px);
  background: linear-gradient(165deg, rgba(216,178,92,0.08), var(--ink-2) 60%);
  min-height: clamp(360px, 40vw, 460px); display: flex; flex-direction: column;
  transform-style: preserve-3d; will-change: transform, opacity;
  transition: transform 0.6s var(--ease-out), box-shadow 0.5s, border-color 0.5s;
}
/* alternate accent per pillar */
.pillar:nth-child(2) { border-top-color: var(--vermillion); background: linear-gradient(165deg, rgba(207,91,70,0.09), var(--ink-2) 60%); }
.pillar:nth-child(3) { border-top-color: var(--steel); background: linear-gradient(165deg, rgba(125,143,192,0.1), var(--ink-2) 60%); }
.pillar:nth-child(4) { border-top-color: var(--gold-2); }
.pillar:nth-child(5) { border-top-color: var(--vermillion-2); background: linear-gradient(165deg, rgba(207,91,70,0.08), var(--ink-2) 60%); }
.pillar:hover {
  transform: translateY(-14px) translateZ(40px) rotateX(3deg) !important;
  border-color: var(--gold); box-shadow: 0 40px 80px -34px rgba(216,178,92,0.5);
  z-index: 5;
}
.pillar .p-num {
  font-family: var(--font-display); font-style: italic; font-weight: 700;
  font-size: clamp(40px, 4vw, 64px); line-height: 1; color: rgba(216,178,92,0.35);
}
.pillar .p-stamp {
  position: absolute; top: 18px; right: 16px; font-family: 'Noto Serif JP', serif;
  color: var(--vermillion); border: 1.5px solid var(--vermillion); border-radius: 4px;
  padding: 5px 6px; font-size: 12px; writing-mode: vertical-rl; letter-spacing: 0.25em; opacity: 0.8;
}
.pillar h3 {
  font-family: var(--font-display); font-size: clamp(18px, 1.5vw, 23px); font-weight: 600;
  line-height: 1.2; margin: 16px 0 10px; color: var(--text);
}
.pillar p { color: var(--muted); font-size: clamp(13px, 0.95vw, 14.5px); line-height: 1.6; }
.pillar .p-tag {
  margin-top: auto; padding-top: 14px; font-size: 10.5px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold-2); display: flex; align-items: center; gap: 8px;
}
.pillar .p-tag::before { content: '◆'; font-size: 8px; }
/* fan-in reveal: each pillar rotates up from the page plane, staggered */
.js .pillar { opacity: 0; transform: perspective(1200px) rotateY(28deg) translateY(60px); transform-origin: left center; }
.js .pillar.in { opacity: 1; transform: perspective(1200px) rotateY(0) translateY(0); }

/* ---- deployment: 3 phases timeline ---- */
.phases { max-width: 1080px; margin: clamp(60px, 8vw, 110px) auto 0; position: relative; z-index: 2; }
.phases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 28px); }
.phase {
  position: relative; border: 1px solid var(--line); border-radius: 10px;
  background: var(--ink-2); padding: clamp(22px, 2.4vw, 32px); overflow: hidden;
  transition: transform 0.5s var(--ease-out), border-color 0.5s, box-shadow 0.5s; will-change: transform;
}
.phase:hover { transform: translateY(-8px); border-color: var(--gold); box-shadow: 0 30px 60px -30px rgba(216,178,92,0.4); }
.phase .ph-step { font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold); }
.phase .ph-when { font-family: var(--font-display); font-size: clamp(20px, 2vw, 28px); color: var(--gold-2); margin: 6px 0 12px; }
.phase p { color: var(--muted); font-size: 14px; line-height: 1.6; }
.phase .ph-idx {
  position: absolute; right: -8px; bottom: -22px; font-family: var(--font-display);
  font-weight: 700; font-style: italic; font-size: 120px; line-height: 1; color: rgba(216,178,92,0.05);
}

@media (max-width: 940px) {
  .pillars { flex-wrap: wrap; }
  .pillar { flex: 1 1 calc(50% - 13px); min-height: 300px; }
  .phases-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .pillar { flex: 1 1 100%; }
  .pillars-wrap { perspective: none; }
  .js .pillar { transform: translateY(40px); }
  .js .pillar.in { transform: none; }
}


/* ============ CORPORATE FRAMEWORK (brochure content) ============ */
.corp-section {
  background:
    radial-gradient(900px 560px at 88% 6%, rgba(125, 143, 192, 0.07), transparent 60%),
    radial-gradient(760px 480px at 6% 70%, rgba(216, 178, 92, 0.07), transparent 60%),
    var(--ink);
  border-top: 1px solid var(--line);
}
.corp-inbound {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 26px); max-width: 1180px; margin: 0 auto clamp(56px, 6vw, 90px);
}
.corp-in {
  border: 1px solid var(--line); border-left: 3px solid var(--steel);
  border-radius: 8px; padding: clamp(24px, 2.8vw, 38px);
  background: linear-gradient(150deg, var(--steel-dim), var(--ink-2) 55%);
  transition: border-color 0.5s, box-shadow 0.5s, transform 0.5s var(--ease-out);
}
.corp-in.corp-in-jp {
  border-left-color: var(--vermillion);
  background: linear-gradient(150deg, var(--vermillion-dim), var(--ink-2) 55%);
}
.corp-in:hover { transform: translateY(-6px); border-color: var(--steel); box-shadow: 0 26px 60px -30px rgba(125, 143, 192, 0.4); }
.corp-in.corp-in-jp:hover { border-color: var(--vermillion); box-shadow: 0 26px 60px -30px rgba(207, 91, 70, 0.4); }
.corp-in img { border-radius: 3px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5); margin-bottom: 16px; }
.corp-in h3 { font-family: var(--font-display); font-size: clamp(20px, 2vw, 26px); font-weight: 600; margin-bottom: 10px; }
.corp-in p { color: var(--muted); font-size: 15px; line-height: 1.65; }

.corp-tiers-head { max-width: 860px; margin: 0 auto 40px; text-align: center; }
.corp-tiers-head h3 {
  font-family: var(--font-display); font-size: clamp(24px, 2.8vw, 36px); font-weight: 600;
  margin-bottom: 14px;
}
.corp-tiers-head p { color: var(--muted); font-size: 15.5px; line-height: 1.7; }
.corp-tiers {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 2.2vw, 28px); max-width: 1180px; margin: 0 auto clamp(56px, 6vw, 90px);
}
.corp-tier {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-top: 3px solid var(--steel);
  border-radius: 8px; padding: clamp(26px, 3vw, 42px);
  background: linear-gradient(160deg, var(--steel-dim), var(--ink-2) 50%);
  transition: border-color 0.5s, box-shadow 0.5s, transform 0.5s var(--ease-out);
}
.corp-tier-premium { border-top-color: var(--gold); background: linear-gradient(160deg, var(--gold-dim), var(--ink-2) 50%); }
.corp-tier:hover { transform: translateY(-8px); border-color: var(--gold); box-shadow: 0 30px 70px -32px rgba(216, 178, 92, 0.4); }
.corp-tier h3 { font-family: var(--font-display); font-size: clamp(21px, 2.2vw, 28px); font-weight: 600; margin-bottom: 12px; }
.corp-tier > p { color: var(--muted); font-size: 14.5px; line-height: 1.65; margin-bottom: 18px; }
.corp-tier ul { list-style: none; }
.corp-tier li {
  padding: 10px 0 10px 26px; position: relative; color: var(--muted); font-size: 14px; line-height: 1.6;
  border-bottom: 1px dashed color-mix(in srgb, var(--gold) 16%, transparent);
}
.corp-tier li:last-child { border-bottom: none; }
.corp-tier li::before { content: '◆'; position: absolute; left: 2px; top: 13px; font-size: 9px; color: var(--gold); }
.corp-tier li strong { color: var(--text); font-weight: 500; }

.corp-track {
  max-width: 1180px; margin: 0 auto clamp(56px, 6vw, 90px);
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--ink-2); padding: clamp(26px, 3vw, 44px);
}
.corp-track-head h3 { font-family: var(--font-display); font-size: clamp(21px, 2.2vw, 28px); font-weight: 600; margin-bottom: 10px; }
.corp-track-head p { color: var(--muted); font-size: 14.5px; line-height: 1.65; max-width: 760px; margin-bottom: 26px; }
.corp-track-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }
.corp-track-item {
  border-left: 2px solid var(--gold); padding-left: 18px;
}
.corp-track-item h4 { font-size: 13px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold-2); margin-bottom: 8px; }
.corp-track-item p { color: var(--muted); font-size: 14px; line-height: 1.65; }

.corp-terms { max-width: 1180px; margin: 0 auto; }
.corp-terms h3 {
  font-size: 13px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold);
  margin-bottom: 18px; display: flex; align-items: center; gap: 12px;
}
.corp-terms h3::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.corp-terms ul { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 28px; }
.corp-terms li {
  padding: 10px 0 10px 24px; position: relative; color: var(--muted); font-size: 13.5px; line-height: 1.6;
}
.corp-terms li::before { content: '◆'; position: absolute; left: 0; top: 13px; font-size: 8px; color: var(--gold); }
.corp-terms li strong { color: var(--text); font-weight: 500; }

@media (max-width: 860px) {
  .corp-inbound, .corp-tiers, .corp-track-grid { grid-template-columns: minmax(0, 1fr); }
  .corp-terms ul { grid-template-columns: minmax(0, 1fr); }
}

/* ============ DOCUMENTS (PDF brochures) ============ */
.docs-section {
  background:
    radial-gradient(800px 480px at 12% 10%, rgba(216, 178, 92, 0.07), transparent 60%),
    radial-gradient(700px 420px at 90% 90%, rgba(125, 143, 192, 0.06), transparent 60%),
    var(--ink-2);
  border-top: 1px solid var(--line);
}
.docs-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 30px); max-width: 1080px; margin: 0 auto;
}
.doc-card {
  border: 1px solid var(--line); border-top: 3px solid var(--gold);
  border-radius: 8px; background: linear-gradient(160deg, var(--gold-dim), var(--ink) 55%);
  padding: clamp(28px, 3.2vw, 44px);
  display: flex; flex-direction: column; align-items: flex-start;
  transition: border-color 0.5s, box-shadow 0.5s, transform 0.5s var(--ease-out);
}
.doc-card:hover {
  border-color: var(--gold); transform: translateY(-8px);
  box-shadow: 0 30px 70px -32px rgba(216, 178, 92, 0.45);
}
.doc-icon { width: 44px; height: 44px; color: var(--gold); margin-bottom: 18px; }
.doc-card h3 { font-family: var(--font-display); font-size: clamp(20px, 2vw, 26px); font-weight: 600; margin-bottom: 10px; }
.doc-card p { color: var(--muted); font-size: 14.5px; margin-bottom: 22px; }
.doc-links { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.doc-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 18px; border: 1px solid var(--gold); border-radius: 3px;
  color: var(--gold-2); font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase;
  transition: background 0.3s, color 0.3s, transform 0.15s var(--ease-out);
}
.doc-btn:hover { background: var(--gold); color: var(--ink); }
.doc-btn:active { transform: scale(0.95); }
.doc-note { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 860px) { .docs-grid { grid-template-columns: minmax(0, 1fr); } }

/* footer brand logo image */
.footer-logo-img {
  margin-top: 18px; width: min(280px, 100%); height: auto;
  border-radius: 8px; border: 1px solid var(--line);
  box-shadow: 0 14px 40px -18px rgba(0, 0, 0, 0.8);
}

/* ===== WebGL book (true 3D) — canvas fills the whole screen, CSS book hidden ===== */
.book-canvas {
  position: absolute; inset: 0; z-index: 2; display: block;
  width: 100% !important; height: 100% !important;
}
.book-webgl .book-stage {
  perspective: none;
  position: absolute; inset: 0;            /* true fullscreen stage */
  width: auto; height: auto; max-height: none;
}
.book-webgl .book { display: none !important; }
.book-webgl .book-shadow { transition: opacity 0.3s; }

/* ===== RESPONSIVE SWAP: book (desktop) <-> method (mobile) ===== */
/* desktop default: keep the book, hide the method alternative */
.method { display: none; }
@media (max-width: 760px) {
  .book-section { display: none !important; }
  .method { display: block !important; }
}