/* ============================================================
   画像処理同好会 — モダン・ダークテーマ v2
   シニア配慮：基本フォントを大きめ(18px)、コントラスト高め
   ============================================================ */

:root {
  --bg: #0b0f17;
  --bg-alt: #111726;
  --surface: #1a2236;
  --surface-2: #222c45;
  --text: #e8ecf4;
  --text-sub: #a8b2c7;
  --accent: #38bdf8;          /* シアン */
  --accent-2: #a78bfa;        /* パープル */
  --accent-3: #f472b6;        /* ピンク */
  --gradient: linear-gradient(120deg, #38bdf8, #a78bfa 50%, #f472b6);
  --radius: 16px;
  --shadow: 0 10px 40px rgba(0, 0, 0, .45);
  --max-w: 1100px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: "Noto Sans JP", "Zen Kaku Gothic New", sans-serif;
  font-size: 18px;               /* シニア向けに大きめ */
  line-height: 1.9;
  color: var(--text);
  background:
    radial-gradient(1000px 700px at 88% -5%, rgba(167, 139, 250, .10), transparent 60%),
    radial-gradient(900px 700px at -8% 35%, rgba(56, 189, 248, .08), transparent 60%),
    radial-gradient(800px 600px at 95% 90%, rgba(244, 114, 182, .06), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* フィルム粒子のような質感のオーバーレイ */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: 999;
  pointer-events: none; opacity: .045;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; display: block; }
a { color: var(--accent); }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ---------- スクロール進捗バー ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 300;
  height: 3px; width: 0;
  background: var(--gradient);
  box-shadow: 0 0 10px rgba(56, 189, 248, .6);
}

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11, 15, 23, .6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled {
  background: rgba(11, 15, 23, .88);
  box-shadow: 0 6px 30px rgba(0, 0, 0, .35);
}
.header-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); font-weight: 900; font-size: 1.15rem; }
.logo-mark {
  display: inline-grid; place-items: center;
  width: 42px; height: 42px; border-radius: 12px;
  background: var(--gradient);
  color: #0b0f17; font-weight: 900; font-size: 1rem;
}
.global-nav { display: flex; gap: 20px; }
.global-nav a {
  color: var(--text-sub); text-decoration: none; font-weight: 500;
  font-size: .98rem; position: relative; padding: 6px 0;
  white-space: nowrap;
  transition: color .25s;
}
.global-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; background: var(--gradient);
  transition: width .3s;
}
.global-nav a:hover { color: var(--text); }
.global-nav a:hover::after { width: 100%; }
.global-nav a.active { color: var(--text); }
.global-nav a.active::after { width: 100%; }

.nav-toggle {
  display: none; flex-direction: column; gap: 6px;
  background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-toggle span { width: 28px; height: 3px; background: var(--text); border-radius: 2px; transition: .3s; }

/* ---------- ヒーロー ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: grid; place-items: center;
  text-align: center; overflow: hidden;
}
#heroCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, var(--bg) 95%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; padding: 120px 24px 80px; pointer-events: none; }
.hero-content a { pointer-events: auto; }
.hero-eyebrow {
  letter-spacing: .35em; font-size: .8rem; color: var(--accent);
  margin-bottom: 20px; font-weight: 500;
}
.hero-title { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 900; line-height: 1.2; margin-bottom: 24px; }
.gradient-text {
  background: linear-gradient(120deg, #38bdf8, #a78bfa 40%, #f472b6 60%, #a78bfa 80%, #38bdf8);
  background-size: 250% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: gradientFlow 8s ease-in-out infinite alternate;
}
@keyframes gradientFlow {
  from { background-position: 0% center; }
  to   { background-position: 100% center; }
}
.hero-lead { font-size: clamp(1.05rem, 2.4vw, 1.35rem); color: var(--text-sub); margin-bottom: 40px; }
.hero-buttons { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 16px 36px; border-radius: 999px;
  font-size: 1.05rem; font-weight: 700; text-decoration: none;
  transition: transform .25s, box-shadow .25s, background .25s;
}
.btn-primary {
  position: relative; overflow: hidden;
  background: var(--gradient); color: #0b0f17;
  box-shadow: 0 8px 30px rgba(56, 189, 248, .35);
}
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .5), transparent);
  transform: skewX(-20deg);
  transition: left .6s ease;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(167, 139, 250, .45); }
.btn-primary:hover::after { left: 130%; }
.btn-ghost {
  border: 2px solid rgba(255, 255, 255, .25); color: var(--text);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .08); transform: translateY(-3px); border-color: rgba(56, 189, 248, .6); }
.btn-large { padding: 18px 48px; font-size: 1.15rem; }

.scroll-indicator {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  z-index: 2; color: var(--text-sub); font-size: .7rem; letter-spacing: .3em;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  pointer-events: none;
}
.scroll-line { width: 1px; height: 48px; background: var(--text-sub); overflow: hidden; position: relative; }
.scroll-line::after {
  content: ""; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: var(--accent); animation: scrollDown 2s infinite;
}
@keyframes scrollDown { to { top: 100%; } }

/* ---------- セクション共通 ---------- */
.section { padding: 110px 0; }
.section-alt { background: rgba(17, 23, 38, .6); }
.section-head { text-align: center; margin-bottom: 60px; }
.section-eyebrow { letter-spacing: .3em; color: var(--accent); font-size: .85rem; font-weight: 700; margin-bottom: 10px; }
.section-title {
  font-size: clamp(1.9rem, 4.5vw, 2.6rem); font-weight: 900;
  display: inline-block; position: relative; padding-bottom: 16px;
}
.section-title::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 64px; height: 4px; border-radius: 2px; background: var(--gradient);
}
.section-desc { color: var(--text-sub); margin-top: 18px; }

/* ---------- スクロール出現アニメーション ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 会について ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.about-text p + p { margin-top: 1.2em; }
.about-text strong { color: var(--accent); font-weight: 700; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stat-card {
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: var(--radius); padding: 28px 18px; text-align: center;
  transition: transform .3s, border-color .3s;
}
.stat-card::after {
  content: ""; position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(180px circle at var(--mx, 50%) var(--my, 50%), rgba(56, 189, 248, .15), transparent 65%);
  transition: opacity .4s;
}
.stat-card:hover { transform: translateY(-5px); border-color: rgba(56, 189, 248, .5); }
.stat-card:hover::after { opacity: 1; }
.stat-number {
  font-size: 2.4rem; font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.stat-label { color: var(--text-sub); font-size: .9rem; margin-top: 6px; }

/* ---------- 例会案内 ---------- */
.meeting-card {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 0;
  background: var(--surface); border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, .08);
  overflow: hidden; box-shadow: var(--shadow);
}
.meeting-main {
  padding: 48px 40px;
  background:
    radial-gradient(circle at 20% 20%, rgba(56, 189, 248, .18), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(167, 139, 250, .18), transparent 50%);
  display: flex; flex-direction: column; justify-content: center;
}
.meeting-label { color: var(--accent); font-weight: 700; letter-spacing: .15em; margin-bottom: 8px; }
.meeting-date { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 900; line-height: 1.3; }
.meeting-time { color: var(--text-sub); margin-top: 8px; font-size: 1.1rem; }
.countdown { display: flex; gap: 16px; margin-top: 28px; }
.count-unit {
  background: rgba(0, 0, 0, .35); border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 12px; padding: 14px 20px; text-align: center; min-width: 86px;
}
.count-unit span { display: block; font-size: 2rem; font-weight: 900; color: var(--accent); font-variant-numeric: tabular-nums; }
.count-unit small { color: var(--text-sub); font-size: .85rem; }
.meeting-info { padding: 48px 40px; border-left: 1px solid rgba(255, 255, 255, .08); }
.meeting-info h3 { font-size: 1.25rem; margin-bottom: 18px; color: var(--accent-2); }
.info-list { list-style: none; }
.info-list li { padding: 10px 0; border-bottom: 1px dashed rgba(255, 255, 255, .12); }
.info-note { margin-top: 18px; font-size: .9rem; color: var(--text-sub); }

.schedule-strip {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-top: 36px;
}
.schedule-item {
  background: var(--surface); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 12px; padding: 16px 10px; text-align: center; font-size: .95rem;
  transition: transform .3s, border-color .3s;
}
.schedule-item:hover { transform: translateY(-4px); border-color: rgba(167, 139, 250, .4); }
.schedule-item.next { border-color: var(--accent); box-shadow: 0 0 18px rgba(56, 189, 248, .25); }
.schedule-item.past { opacity: .45; }
.schedule-item .month { font-weight: 900; font-size: 1.2rem; color: var(--accent); display: block; }
.schedule-item .day { color: var(--text-sub); font-size: .85rem; }
.schedule-item.next .badge {
  display: inline-block; margin-top: 6px; font-size: .7rem; font-weight: 700;
  background: var(--gradient); color: #0b0f17; padding: 2px 10px; border-radius: 999px;
}

/* ---------- 活動テーマ ---------- */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card {
  background: var(--surface); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: var(--radius); padding: 40px 30px;
  transition: transform .35s, border-color .35s, box-shadow .35s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--gradient); opacity: 0; transition: opacity .35s;
}
.card::after {
  content: ""; position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), rgba(56, 189, 248, .13), transparent 65%);
  transition: opacity .4s;
}
.card:hover { transform: translateY(-8px); border-color: rgba(167, 139, 250, .4); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.card:hover::after { opacity: 1; }
.card-icon { font-size: 2.6rem; margin-bottom: 18px; }
.card h3 { font-size: 1.3rem; margin-bottom: 14px; }
.card p { color: var(--text-sub); font-size: 1rem; }
.card-tags { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px; }
.card-tags span {
  font-size: .8rem; padding: 4px 14px; border-radius: 999px;
  background: rgba(56, 189, 248, .12); color: var(--accent);
  border: 1px solid rgba(56, 189, 248, .3);
}

/* ---------- ビフォー/アフター比較スライダー ---------- */
.compare-grid {
  display: grid; grid-template-columns: 2fr 1fr; gap: 26px;
  align-items: start;
}
.compare-figure { margin: 0; }
.compare-figure figcaption {
  text-align: center; margin-top: 14px;
  color: var(--text-sub); font-size: .98rem;
}
.compare {
  position: relative; overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: var(--shadow);
  user-select: none; -webkit-user-select: none;
  background: var(--surface);
}
.compare-wide { aspect-ratio: 3 / 2; }
.compare-tall { aspect-ratio: 3 / 4; }
.compare > img,
.compare-before img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  pointer-events: none;
}
.compare-before {
  position: absolute; inset: 0;
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}
.compare-label {
  position: absolute; top: 14px; z-index: 2; pointer-events: none;
  padding: 4px 14px; border-radius: 999px;
  font-size: .72rem; font-weight: 700; letter-spacing: .14em;
  color: #fff; background: rgba(11, 15, 23, .6);
  border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.compare-label.is-before { left: 14px; }
.compare-label.is-after { right: 14px; color: #8be2ff; border-color: rgba(56, 189, 248, .55); }
.compare-line {
  position: absolute; top: 0; bottom: 0; left: var(--pos); z-index: 2;
  width: 2px; transform: translateX(-1px);
  background: rgba(255, 255, 255, .95);
  box-shadow: 0 0 14px rgba(56, 189, 248, .8);
  pointer-events: none;
}
.compare-knob {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(11, 15, 23, .7);
  border: 2px solid rgba(255, 255, 255, .95);
  box-shadow: 0 4px 18px rgba(0, 0, 0, .5);
  display: grid; place-items: center;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.compare-knob::before {
  content: "◀ ▶";
  font-size: .68rem; color: #fff; letter-spacing: 1px;
}
.compare-range {
  position: absolute; inset: 0; z-index: 3;
  width: 100%; height: 100%;
  opacity: 0; cursor: ew-resize; margin: 0;
  -webkit-appearance: none; appearance: none;
  touch-action: none;
}

/* ---------- ギャラリー ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gallery-item {
  border-radius: var(--radius); overflow: hidden; cursor: pointer;
  background: var(--surface); border: 1px solid rgba(255, 255, 255, .07);
  transition: transform .35s, box-shadow .35s, border-color .35s;
  margin: 0;
}
.gallery-item:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(56, 189, 248, .4); }
.gallery-item img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  transition: transform .5s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption {
  padding: 14px 18px; font-size: .95rem; color: var(--text-sub);
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.gallery-note { text-align: center; color: var(--text-sub); font-size: .9rem; margin-top: 28px; }

/* ---------- 参加者の声 ---------- */
.voices-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.voice-card {
  position: relative; overflow: hidden; margin: 0;
  background: var(--surface); border: 1px solid rgba(255, 255, 255, .07);
  border-radius: var(--radius); padding: 36px 30px 30px;
  display: flex; flex-direction: column; gap: 24px;
  transition: transform .35s, border-color .35s, box-shadow .35s;
}
.voice-card::after {
  content: ""; position: absolute; inset: 0; opacity: 0; pointer-events: none;
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), rgba(167, 139, 250, .13), transparent 65%);
  transition: opacity .4s;
}
.voice-card:hover { transform: translateY(-8px); border-color: rgba(56, 189, 248, .4); box-shadow: var(--shadow); }
.voice-card:hover::after { opacity: 1; }
.voice-quote { flex: 1; font-style: italic; color: var(--text-sub); font-size: 1rem; line-height: 2; }
.voice-quote::before {
  content: "\201C";
  display: block; font-family: Georgia, "Times New Roman", serif;
  font-size: 3.6rem; line-height: .55; margin-bottom: 16px;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.voice-person { display: flex; align-items: center; gap: 14px; }
.voice-avatar {
  width: 48px; height: 48px; border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center;
  font-weight: 900; font-size: 1.1rem; color: #0b0f17;
}
.avatar-1 { background: linear-gradient(135deg, #7dd3fc, #38bdf8); }
.avatar-2 { background: linear-gradient(135deg, #c4b5fd, #a78bfa); }
.avatar-3 { background: linear-gradient(135deg, #f9a8d4, #f472b6); }
.voice-name { font-weight: 700; line-height: 1.5; }
.voice-name small { display: block; font-weight: 400; color: var(--text-sub); font-size: .85rem; }

/* ---------- ライトボックス ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(5, 8, 14, .9);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: none; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox.open .lightbox-body { animation: lightboxIn .3s ease; }
@keyframes lightboxIn {
  from { opacity: 0; transform: scale(.95); }
  to   { opacity: 1; transform: scale(1); }
}
.lightbox-body {
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  display: flex; align-items: center; justify-content: center;
}
.lightbox-body img {
  max-width: 92vw; max-height: 76vh;
  width: auto; height: auto; object-fit: contain;
}
.lightbox-caption { margin-top: 20px; font-size: 1.15rem; }
.lightbox-close {
  position: absolute; top: 24px; right: 32px;
  background: none; border: none; color: var(--text);
  font-size: 3rem; cursor: pointer; line-height: 1;
  transition: transform .25s, color .25s;
}
.lightbox-close:hover { transform: rotate(90deg); color: var(--accent); }

/* ---------- 入会案内 ---------- */
.join-card {
  text-align: center; background: var(--surface);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius); padding: 60px 40px;
  background-image:
    radial-gradient(circle at 10% 0%, rgba(56, 189, 248, .12), transparent 40%),
    radial-gradient(circle at 90% 100%, rgba(244, 114, 182, .12), transparent 40%);
}
.join-lead { font-size: 1.15rem; margin-bottom: 30px; }
.join-points { list-style: none; margin-bottom: 36px; display: inline-block; text-align: left; }
.join-points li { padding: 6px 0; font-size: 1.05rem; }

/* ---------- フッター ---------- */
.site-footer { border-top: 1px solid rgba(255, 255, 255, .07); padding: 40px 0; background: var(--bg-alt); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 900; }
.footer-copy { color: var(--text-sub); font-size: .85rem; }

/* ---------- トップへ戻る ---------- */
.to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gradient); color: #0b0f17;
  border: none; font-size: 1.5rem; font-weight: 900; cursor: pointer;
  opacity: 0; pointer-events: none; transform: translateY(20px);
  transition: opacity .3s, transform .3s;
  box-shadow: 0 8px 24px rgba(56, 189, 248, .4);
}
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }
.to-top:hover { transform: translateY(-4px); }

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px) {
  .about-grid, .meeting-card { grid-template-columns: 1fr; }
  .meeting-info { border-left: none; border-top: 1px solid rgba(255, 255, 255, .08); }
  .cards-grid { grid-template-columns: 1fr; }
  .voices-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .schedule-strip { grid-template-columns: repeat(3, 1fr); }
  .compare-grid { grid-template-columns: 1fr; }
  .compare-tall { max-width: 520px; margin: 0 auto; }
}
@media (max-width: 960px) {
  .global-nav {
    position: fixed; top: 70px; right: 0; left: 0;
    background: rgba(11, 15, 23, .97);
    flex-direction: column; gap: 0; padding: 12px 24px 24px;
    transform: translateY(-130%); transition: transform .35s;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
  }
  .global-nav.open { transform: none; }
  .global-nav a { padding: 14px 0; font-size: 1.1rem; border-bottom: 1px solid rgba(255,255,255,.06); }
  .nav-toggle { display: flex; }
}
@media (max-width: 640px) {
  body { font-size: 17px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .countdown { gap: 10px; }
  .count-unit { min-width: 0; flex: 1; padding: 12px 8px; }
  .section { padding: 80px 0; }
}

/* アニメーションを減らす設定の利用者に配慮 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}