/* ==========================================================================
   Johnny Wu — Speaker Site
   Design system: Premium Editorial (black/gold) — Playfair Display + Inter
   ========================================================================== */

:root {
  --color-ink: #0C0A09;
  --color-primary: #1C1917;
  --color-primary-soft: #2A2523;
  --color-secondary: #44403C;
  --color-gold: #92650A;
  --color-gold-bright: #D4AF37;
  --color-bg: #FAFAF9;
  --color-bg-alt: #F3F1EC;
  --color-card: #FFFFFF;
  --color-muted: #E8E4DC;
  --color-muted-fg: #6B6560;
  --color-border: #DDD8CF;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 16px; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 1rem;
}
.eyebrow--light { color: var(--color-gold-bright); }

.section-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 1.25rem;
  letter-spacing: -0.01em;
}
.section-title--light { color: #fff; }

.section-lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--color-secondary);
  max-width: 640px;
  margin: 0 0 2.25rem;
  font-weight: 300;
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2rem;
  border-radius: 2px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background 0.3s, color 0.3s, border-color 0.3s;
  white-space: nowrap;
}
.btn--gold {
  background: var(--color-gold);
  color: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
.btn--gold:hover { background: #7A5208; transform: translateY(-2px); box-shadow: 0 10px 24px -8px rgba(146,101,10,0.55); }
.btn--ghost {
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
  background: transparent;
}
.btn--ghost:hover { background: var(--color-ink); color: #fff; transform: translateY(-2px); }
.btn--ghost-dark {
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
}
.btn--ghost-dark:hover { background: #fff; color: var(--color-ink); }
.btn--text { color: var(--color-secondary); text-decoration: underline; text-underline-offset: 4px; padding: 0.5rem; }
.btn--text:hover { color: var(--color-ink); }
.btn--wide { width: 100%; padding: 1.05rem 2rem; }
.btn--nav {
  padding: 0.6rem 1.4rem;
  background: var(--color-gold);
  color: #fff;
  font-size: 0.85rem;
}
.btn--nav:hover { background: #7A5208; }
.btn__ghost-icon { font-size: 0.7rem; }

/* ---------------- Grain / cursor spotlight ---------------- */
.grain-overlay {
  position: fixed; inset: 0; pointer-events: none; z-index: 999;
  opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.cursor-spot {
  position: fixed; width: 420px; height: 420px; border-radius: 50%;
  pointer-events: none; z-index: 1;
  background: radial-gradient(circle, rgba(212,175,55,0.06), transparent 70%);
  transform: translate(-50%, -50%);
  left: 50%; top: 30%;
  transition: left 0.5s var(--ease-out), top 0.5s var(--ease-out);
}

/* ---------------- Nav ---------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.4rem 0;
  transition: padding 0.4s var(--ease-out), background 0.4s, box-shadow 0.4s;
}
.nav.is-scrolled {
  padding: 0.85rem 0;
  background: rgba(250,249,249,0.85);
  backdrop-filter: blur(12px) saturate(1.4);
  box-shadow: 0 1px 0 var(--color-border);
}
.nav__inner {
  max-width: var(--container); margin: 0 auto; padding: 0 1.75rem;
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.nav__mark {
  font-family: var(--font-serif); font-weight: 700; font-size: 1.25rem;
  color: var(--color-ink);
}
.nav.is-scrolled .nav__mark,
.hero ~ * .nav__mark {}
.nav__links { display: flex; gap: 2rem; flex: 1; justify-content: center; }
.nav__links a { font-size: 0.88rem; font-weight: 500; color: var(--color-secondary); position: relative; padding: 0.2rem 0; }
.nav__links a::after {
  content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 1px;
  background: var(--color-gold); transition: width 0.3s var(--ease-out);
}
.nav__links a:hover { color: var(--color-ink); }
.nav__links a:hover::after { width: 100%; }
.nav__burger { display: none; flex-direction: column; gap: 5px; width: 24px; }
.nav__burger span { display: block; height: 2px; background: var(--color-ink); }

/* We want nav to sit on dark hero initially -> force light text at top */
.nav:not(.is-scrolled) .nav__mark { color: #fff; }
.nav:not(.is-scrolled) .nav__links a { color: rgba(255,255,255,0.75); }
.nav:not(.is-scrolled) .nav__links a:hover { color: #fff; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100dvh;
  background: radial-gradient(circle at 78% 30%, #2b2420 0%, #17130f 45%, #0c0a09 100%);
  color: #fff;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 7rem 1.75rem 4rem;
}
.hero__spotlight {
  position: absolute; inset: -20%;
  background: radial-gradient(circle at 75% 35%, rgba(212,175,55,0.18), transparent 55%);
  pointer-events: none;
}
.hero__cardglyphs { position: absolute; inset: 0; pointer-events: none; }
.glyph {
  position: absolute; font-size: 8rem; color: rgba(255,255,255,0.035);
  font-family: Georgia, serif;
}
.glyph--1 { top: 8%; left: 4%; }
.glyph--2 { bottom: 10%; left: 12%; font-size: 6rem; }
.glyph--3 { top: 15%; right: 8%; font-size: 10rem; }
.glyph--4 { bottom: 6%; right: 20%; font-size: 5rem; }

.hero__inner {
  position: relative; z-index: 2;
  max-width: var(--container); margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero__col--text { text-align: left; }
.hero__eyebrow { color: var(--color-gold-bright); }
.hero__headline {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 4.6vw, 3.8rem);
  line-height: 1.12;
  margin: 0 0 1.75rem;
  letter-spacing: -0.015em;
}
.hero__headline .line { display: block; overflow: hidden; }
.hero__headline em { color: var(--color-gold-bright); font-style: italic; }
.hero__sub {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  font-weight: 300;
  color: rgba(255,255,255,0.72);
  max-width: 480px;
  margin: 0 0 2.5rem;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero__col--photo { display: flex; flex-direction: column; align-items: center; }
.hero__photo {
  position: relative; width: 100%; max-width: 420px; aspect-ratio: 4/5;
  border-radius: 4px; overflow: hidden;
  border: 1px solid rgba(212,175,55,0.35);
  box-shadow: 0 40px 80px -24px rgba(0,0,0,0.6);
}
.hero__photo-img { width: 100%; height: 100%; object-fit: cover; }
.hero__photo-caption {
  margin-top: 1rem; font-size: 0.85rem; color: rgba(255,255,255,0.5);
  letter-spacing: 0.02em; text-align: center;
}

/* Missing-image placeholder treatment (used until real assets are dropped in) */
.img-missing .story__photo-img,
.img-missing .book__cover-img,
.img-missing .hero__photo-img { display: none; }
.img-missing__label { display: none; }
.img-missing {
  display: flex; align-items: center; justify-content: center; text-align: center;
  background: linear-gradient(145deg, #2a2521, #17130f);
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem; line-height: 1.5;
}
.img-missing .img-missing__label { display: block; }
.img-missing__label span { display: block; font-size: 0.68rem; opacity: 0.55; margin-top: 0.35rem; font-family: monospace; }

.hero__scrollcue {
  position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  color: rgba(255,255,255,0.45); z-index: 2;
}
.hero__scrollcue span {
  width: 1px; height: 34px; background: linear-gradient(rgba(255,255,255,0), rgba(255,255,255,0.6));
  animation: scrollcue 2s ease-in-out infinite;
}
.hero__scrollcue p { font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; margin: 0; }
@keyframes scrollcue { 0%,100% { transform: scaleY(0.6); opacity: 0.4; } 50% { transform: scaleY(1); opacity: 1; } }

/* ---------------- Logos strip ---------------- */
.logos { padding: 3rem 0; border-bottom: 1px solid var(--color-border); overflow: hidden; }
.logos__label {
  text-align: center; font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-muted-fg); margin: 0 0 1.75rem;
}
.logos__track { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.logos__row {
  display: flex; gap: 4.5rem; width: max-content;
  animation: marquee 28s linear infinite;
}
.logos__row span {
  font-family: var(--font-serif); font-size: 1.4rem; font-weight: 600;
  color: var(--color-secondary); opacity: 0.55; white-space: nowrap;
}
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------------- Reveal / card demo ---------------- */
.reveal { padding: clamp(4rem, 8vw, 6rem) 1.75rem; background: var(--color-bg-alt); }
.reveal__intro { max-width: 720px; margin: 0 auto; text-align: center; }
.reveal__intro .section-lede { margin-left: auto; margin-right: auto; }

.card-demo {
  max-width: 900px; margin: 3rem auto 0;
  background: var(--color-primary);
  border-radius: 4px;
  padding: clamp(2rem, 5vw, 4rem) clamp(1.25rem, 4vw, 3rem);
  color: #fff;
  min-height: 420px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.35);
}
.demo-stage { width: 100%; text-align: center; }
.demo-stage[hidden] { display: none; }
.demo-caption { font-family: var(--font-serif); font-size: 1.35rem; margin: 0 0 2rem; }
.demo-caption--big { font-size: clamp(1.6rem, 3vw, 2.2rem); }

.demo-timerbar { height: 3px; background: rgba(255,255,255,0.12); border-radius: 2px; margin-bottom: 2rem; overflow: hidden; }
.demo-timerbar span { display: block; height: 100%; width: 100%; background: var(--color-gold-bright); transform-origin: left; }

.card-row { display: flex; gap: clamp(0.5rem, 2vw, 1.25rem); justify-content: center; flex-wrap: wrap; perspective: 1000px; }
.pcard {
  width: clamp(56px, 10vw, 84px); aspect-ratio: 5/7;
  border-radius: 6px;
  background: #fff; color: var(--color-ink);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-weight: 700; font-size: clamp(1.2rem, 2.4vw, 1.8rem);
  box-shadow: 0 8px 20px -6px rgba(0,0,0,0.4);
  position: relative;
  transition: transform 0.5s var(--ease-in-out);
}
.pcard.suit-h, .pcard.suit-d { color: #9A1F1F; }
.pcard.suit-s, .pcard.suit-c { color: var(--color-ink); }
.card-row--back .pcard {
  cursor: pointer;
  background: repeating-linear-gradient(135deg, var(--color-gold) 0 6px, #7A5208 6px 12px);
  color: transparent;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}
.card-row--back .pcard:hover { transform: translateY(-8px) scale(1.04); box-shadow: 0 16px 28px -8px rgba(0,0,0,0.5); }
.card-row--back .pcard.is-selected { outline: 2px solid var(--color-gold-bright); outline-offset: 3px; }

.pcard.flip-out { animation: flipOut 0.4s var(--ease-in-out) forwards; }
.pcard.flip-in { animation: flipIn 0.5s var(--ease-in-out) forwards; }
@keyframes flipOut { to { transform: rotateY(90deg); } }
@keyframes flipIn { from { transform: rotateY(90deg); } to { transform: rotateY(0deg); } }

.pcard.is-shuffling { animation: cardShuffle 0.9s var(--ease-in-out); }
@keyframes cardShuffle {
  0%   { transform: translate(0, 0) rotate(0deg); }
  14%  { transform: translate(-16px, -10px) rotate(-7deg); }
  28%  { transform: translate(14px, 8px) rotate(6deg); }
  42%  { transform: translate(-12px, 7px) rotate(-5deg); }
  57%  { transform: translate(15px, -9px) rotate(6deg); }
  71%  { transform: translate(-9px, -5px) rotate(-4deg); }
  85%  { transform: translate(6px, 4px) rotate(2deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}
@media (prefers-reduced-motion: reduce) {
  .pcard.is-shuffling { animation: none; }
}

.demo-explain { max-width: 560px; margin: 2rem auto 0; color: rgba(255,255,255,0.7); font-size: 1rem; }
.demo-explain strong { color: var(--color-gold-bright); }
.demo-explain-cta { margin-top: 2rem; display: flex; gap: 1.5rem; justify-content: center; align-items: center; flex-wrap: wrap; }
.card-demo .btn--text { color: rgba(255,255,255,0.65); }
.card-demo .btn--text:hover { color: #fff; }

/* ---------------- Story ---------------- */
.story {
  padding: clamp(4rem, 8vw, 6rem) 1.75rem; max-width: var(--container); margin: 0 auto;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 4rem; align-items: center;
}
.story__p { font-size: 1.08rem; color: var(--color-secondary); margin: 0 0 1.4rem; }
.story__p em { color: var(--color-ink); font-style: italic; }
.story__quote {
  margin: 2rem 0 0; padding-left: 1.5rem; border-left: 3px solid var(--color-gold);
  font-family: var(--font-serif); font-style: italic; font-size: 1.3rem; color: var(--color-ink);
}
.story__photo { position: relative; aspect-ratio: 4/5; border-radius: 4px; overflow: hidden; }
.story__photo-img { width: 100%; height: 100%; object-fit: cover; }
.story__caption { font-size: 0.85rem; color: var(--color-muted-fg); margin-top: 0.75rem; text-align: right; }

/* ---------------- Speaking topics ---------------- */
.speaking { padding: clamp(4rem, 8vw, 6rem) 1.75rem; max-width: var(--container); margin: 0 auto; text-align: center; }
.speaking .section-lede { margin-left: auto; margin-right: auto; }
.topics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; text-align: left; margin-top: 3rem; }
.topic-card {
  background: var(--color-card); border: 1px solid var(--color-border);
  padding: 2.5rem 2rem; border-radius: 4px;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s;
}
.topic-card:hover { transform: translateY(-6px); box-shadow: 0 24px 40px -16px rgba(28,25,23,0.18); border-color: var(--color-gold); }
.topic-card__num { font-family: var(--font-serif); font-size: 0.95rem; color: var(--color-gold); font-weight: 700; }
.topic-card__title { font-family: var(--font-serif); font-size: 1.4rem; margin: 0.75rem 0 1rem; line-height: 1.25; }
.topic-card__body { color: var(--color-secondary); font-size: 0.98rem; margin: 0; }

.speaking__anchor { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--color-border); }
.speaking__anchor p { font-family: var(--font-serif); font-style: italic; font-size: clamp(1.2rem, 2.2vw, 1.6rem); max-width: 760px; margin: 0 auto; }

/* ---------------- TEDx feature ---------------- */
.tedx {
  padding: clamp(4rem, 8vw, 6rem) 1.75rem; background: var(--color-primary); color: #fff; text-align: center;
  position: relative; overflow: hidden;
}
.tedx::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(212,175,55,0.14), transparent 60%);
}
.tedx__inner { position: relative; max-width: 720px; margin: 0 auto; }
.tedx__badge {
  display: inline-flex; align-items: baseline; gap: 0.5rem;
  border: 1px solid rgba(255,255,255,0.25); padding: 0.6rem 1.4rem; border-radius: 999px;
  margin-bottom: 2rem;
}
.tedx__badge-ted { font-family: var(--font-sans); font-weight: 800; letter-spacing: 0.02em; font-size: 1.05rem; }
.tedx__badge-ted span { color: var(--color-gold-bright); }
.tedx__badge-sub { font-size: 0.78rem; color: rgba(255,255,255,0.55); letter-spacing: 0.05em; }
.tedx__desc { font-size: 1.1rem; color: rgba(255,255,255,0.72); margin: 0 0 1rem; }
.tedx__status { font-size: 0.85rem; color: var(--color-gold-bright); letter-spacing: 0.04em; margin: 0 0 2.5rem; }

/* ---------------- Stats ---------------- */
.stats {
  padding: 5rem 1.75rem; max-width: var(--container); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center;
}
.stat__num {
  display: block; font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(2.2rem, 4vw, 3.2rem); color: var(--color-gold);
}
.stat__label { font-size: 0.85rem; color: var(--color-muted-fg); display: block; margin-top: 0.5rem; }

/* ---------------- Book ---------------- */
.book {
  padding: clamp(4rem, 8vw, 6rem) 1.75rem; background: var(--color-primary); color: #fff;
  display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 5rem; align-items: center;
  max-width: var(--container); margin: 0 auto; border-radius: 4px;
}
.book__cover-frame {
  position: relative; aspect-ratio: 2/3; max-width: 340px; margin: 0 auto;
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.6);
  transform: rotate(-2deg);
  transition: transform 0.5s var(--ease-out);
  border-radius: 3px; overflow: hidden;
}
.book__cover-frame:hover { transform: rotate(0deg) scale(1.02); }
.book__cover-img { width: 100%; height: 100%; object-fit: cover; }
.book__subtitle { font-family: var(--font-serif); font-style: italic; font-size: 1.2rem; color: var(--color-gold-bright); margin: 0 0 1.5rem; }
.book__desc { color: rgba(255,255,255,0.7); font-size: 1.02rem; margin: 0 0 2.5rem; max-width: 520px; }

.book__form { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12); padding: 2rem; border-radius: 4px; max-width: 520px; }
.book__form-label { font-family: var(--font-serif); font-size: 1.15rem; margin: 0 0 1.25rem; }
.book__form-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; margin-bottom: 1.25rem; }
.book__form-note { font-size: 0.78rem; color: rgba(255,255,255,0.45); margin: 0.9rem 0 0; text-align: center; }

/* ---------------- Fields (shared) ---------------- */
.field { display: flex; flex-direction: column; gap: 0.45rem; text-align: left; min-width: 0; }
.field label { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.03em; color: inherit; opacity: 0.8; }
.field input, .field textarea {
  width: 100%; min-width: 0;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.18);
  color: #fff; padding: 0.85rem 1rem; border-radius: 3px; outline: none;
  transition: border-color 0.25s, background 0.25s;
}
.contact .field input, .contact .field textarea {
  background: var(--color-card); border: 1px solid var(--color-border); color: var(--color-ink);
}
.field input:focus, .field textarea:focus { border-color: var(--color-gold); }
.field textarea { resize: vertical; min-height: 100px; }

/* ---------------- Contact ---------------- */
.contact { padding: clamp(4rem, 8vw, 6rem) 1.75rem; max-width: 820px; margin: 0 auto; text-align: center; }
.contact .section-lede { margin-left: auto; margin-right: auto; }
.contact__form {
  text-align: left; margin-top: 3rem;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.5rem;
}
.field--full { grid-column: 1 / -1; }

/* ---------------- Footer ---------------- */
.footer { padding: 4rem 1.75rem 3rem; background: var(--color-ink); color: rgba(255,255,255,0.6); }
.footer__inner { max-width: var(--container); margin: 0 auto; text-align: center; }
.footer__mark { font-family: var(--font-serif); font-size: 1.4rem; color: #fff; display: block; margin-bottom: 1.5rem; }
.footer__links { display: flex; gap: 2rem; justify-content: center; margin-bottom: 2rem; flex-wrap: wrap; }
.footer__links a:hover { color: var(--color-gold-bright); }
.footer__copy { font-size: 0.78rem; opacity: 0.6; margin: 0; }

/* ---------------- Reveal-on-scroll base states (IO toggles .is-visible) ---------------- */
[data-reveal-text], [data-reveal-up], [data-reveal-scale] {
  will-change: transform, opacity;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
[data-reveal-text] { opacity: 0; transform: translateY(18px); }
[data-reveal-up] { opacity: 0; transform: translateY(36px); }
[data-reveal-scale] { opacity: 0; transform: scale(0.94); }
.is-visible[data-reveal-text],
.is-visible[data-reveal-up],
.is-visible[data-reveal-scale] { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal-text], [data-reveal-up], [data-reveal-scale] { opacity: 1; transform: none; }
}

/* ---------------- Responsive ---------------- */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__col--text { text-align: center; }
  .hero__sub { margin-left: auto; margin-right: auto; }
  .hero__cta { justify-content: center; }
  .hero__col--photo { order: -1; margin-bottom: 1rem; }
  .story { grid-template-columns: 1fr; }
  .story__col--media { order: -1; }
  .topics { grid-template-columns: 1fr; }
  .book { grid-template-columns: 1fr; text-align: center; }
  .book__desc { margin-left: auto; margin-right: auto; }
  .book__form { margin: 0 auto; }
  .book__form-row { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .nav__links { display: none; }
  .nav__burger { display: flex; }
}
@media (max-width: 640px) {
  .contact__form { grid-template-columns: 1fr; }
  .demo-explain-cta { flex-direction: column; }
}