/* Home page */
.home-hero { position: relative; overflow: hidden; padding: clamp(48px, 7vw, 96px) 0 clamp(40px, 5vw, 72px); border-bottom: 1px solid var(--line); }
.home-hero h1 { font-size: clamp(2.6rem, 7vw, 5.6rem); line-height: 1.08; max-width: 12ch; }
.home-hero h1 em { font-family: var(--serif); font-style: italic; font-weight: 600; color: var(--accent); }
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.hero-bike-wrap { position: relative; }
.hero-bike { width: 100%; height: auto; overflow: visible; }
.hero-bike .frame { stroke: var(--ink); }
.hero-bike .acc { stroke: var(--accent); }
.hero-bike .spoke { stroke: var(--muted); }
.hero-bike .ground { stroke: var(--line-2); }
.speed-lines line { stroke: var(--line-2); stroke-linecap: round; }
.hero-ctrl { display: flex; align-items: center; gap: 14px; margin-top: 18px; padding: 14px 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; }
.hero-ctrl label { font-size: .82rem; font-weight: 700; white-space: nowrap; color: var(--ink-2); }
.hero-ctrl output { font-family: var(--mono); font-size: .9rem; min-width: 76px; text-align: right; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }

.marquee { overflow: hidden; border-bottom: 1px solid var(--line); background: var(--ink); color: var(--bg); padding: 14px 0; }
.marquee-track { display: flex; gap: 48px; width: max-content; animation: marquee 50s linear infinite; font-family: var(--mono); font-size: .85rem; letter-spacing: .06em; }
.marquee-track span::before { content: "◆"; color: var(--accent); margin-right: 14px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.chapter-card { display: flex; flex-direction: column; min-height: 260px; overflow: hidden; }
.chapter-card .card-num { margin-bottom: 8px; }
.chapter-card svg.thumb { width: 100%; height: 110px; margin: auto 0 0; padding-top: 18px; }
.chapter-card svg.thumb * { stroke: var(--ink-2); }
.chapter-card svg.thumb .a { stroke: var(--accent); }
.chapter-card:hover svg.thumb .a { animation: wiggle .6s ease; }
@keyframes wiggle { 50% { transform: translateY(-4px); } }
.chapter-card.feature { grid-column: span 2; background: var(--ink); color: var(--bg); border-color: var(--ink); }
.chapter-card.feature p { color: color-mix(in srgb, var(--bg) 70%, transparent); }
.chapter-card.feature svg.thumb * { stroke: var(--bg); }
.chapter-card.feature svg.thumb .a { stroke: var(--accent); }
@media (max-width: 640px) { .chapter-card.feature { grid-column: auto; } }

.fact-card { background: var(--accent); color: #fff; border-radius: var(--radius); padding: clamp(28px, 4vw, 48px); position: relative; overflow: hidden; }
.fact-card .fact-text { font-family: var(--serif); font-size: clamp(1.3rem, 2.6vw, 1.9rem); line-height: 1.45; min-height: 4.4em; transition: opacity .25s; }
.fact-card .btn { background: #fff; color: #16140f; border-color: #fff; }
.fact-card .btn:hover { color: #16140f; }
.fact-card .fact-no { font-family: var(--mono); font-size: .8rem; opacity: .8; letter-spacing: .1em; }
.fact-card .big-wheel { position: absolute; right: -60px; bottom: -60px; width: 240px; opacity: .18; animation: spin 18s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.mini-timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; margin-top: 24px; }
.mini-timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; height: 2px; background: var(--line-2); }
.mt-item { position: relative; padding: 36px 12px 0 0; }
.mt-item::before { content: ""; position: absolute; top: 4px; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); }
.mt-year { font-family: var(--serif); font-weight: 800; font-size: 1.6rem; line-height: 1; }
.mt-item p { font-size: .9rem; color: var(--muted); margin-top: 8px; line-height: 1.5; }
@media (max-width: 860px) { .mini-timeline { grid-template-columns: repeat(3, 1fr); row-gap: 28px; } .mini-timeline::before { display: none; } }
@media (max-width: 480px) { .mini-timeline { grid-template-columns: repeat(2, 1fr); } }

.share-chart { display: flex; height: 54px; border-radius: 12px; overflow: hidden; margin: 18px 0 12px; }
.share-chart div { display: grid; place-items: center; color: #fff; font-weight: 700; font-size: .82rem; transition: flex-grow 1s cubic-bezier(.2,.8,.2,1); flex-grow: 0; flex-basis: 0; min-width: 0; white-space: nowrap; overflow: hidden; }
.share-legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: .85rem; color: var(--muted); }
.share-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; }

.compare-cal { display: grid; gap: 14px; }
.compare-cal .row { display: grid; grid-template-columns: 110px 1fr; gap: 14px; align-items: center; font-size: .92rem; }
.compare-cal .dots { display: flex; flex-wrap: wrap; gap: 4px; }
.compare-cal .dots span { width: 14px; height: 14px; border-radius: 4px; background: var(--accent); opacity: 0; transform: scale(.4); transition: opacity .3s, transform .3s; }
.compare-cal.in .dots span { opacity: 1; transform: none; }