:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5a667a;
  --paper: #eef9ff;
  --card: #ffffff;
  --line: #d7e8f3;
  --blue: #1597d3;
  --aqua: #38bdf8;
  --deep: #0f4c81;
  --green: #16a34a;
  --orange: #f59e0b;
  --red: #ef4444;
  --shadow: 0 24px 60px rgba(15, 76, 129, 0.16);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.32), transparent 28rem),
    radial-gradient(circle at bottom right, rgba(20, 184, 166, 0.20), transparent 30rem),
    linear-gradient(135deg, #f0fbff 0%, #f7fcff 52%, #e8f7ff 100%);
  color: var(--ink);
}
main { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.hero { padding: 24px 0 36px; }
.crumb { display: flex; justify-content: space-between; gap: 16px; align-items: center; color: var(--muted); font-size: 0.95rem; margin-bottom: 28px; }
.crumb a { color: var(--ink); text-decoration: none; font-weight: 850; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(330px, 470px); gap: 28px; align-items: center; }
.eyebrow { color: var(--deep); font-weight: 950; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.82rem; }
h1 { font-size: clamp(2.35rem, 7vw, 5.1rem); line-height: 0.94; margin: 0 0 18px; letter-spacing: -0.025em; }
h1 span { display: block; }
.lede { font-size: clamp(1.05rem, 2vw, 1.35rem); color: var(--muted); max-width: 58ch; line-height: 1.55; }
.preset-row, .custom-row, .actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.preset-row { margin: 26px 0 18px; }
.pill, button { border: 0; font: inherit; cursor: pointer; }
.pill { border: 2px solid var(--line); background: rgba(255,255,255,0.9); color: var(--ink); padding: 11px 14px; border-radius: 999px; font-weight: 850; box-shadow: 0 8px 18px rgba(15, 76, 129, 0.07); }
.pill.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.custom-panel { margin-top: 18px; }
.custom-panel label { display: block; margin-bottom: 8px; font-weight: 950; }
.custom-row span { color: var(--muted); font-weight: 850; }
input { width: 86px; border: 2px solid var(--line); border-radius: 14px; padding: 12px 11px; font: inherit; font-weight: 850; color: var(--ink); background: #fff; }
.timer-card, .info-card, .tips, .faq { background: rgba(255,255,255,0.94); border: 1px solid rgba(215, 232, 243, 0.96); border-radius: 30px; box-shadow: var(--shadow); }
.timer-card { padding: clamp(20px, 4vw, 34px); text-align: center; }
.shower-window { position: relative; overflow: hidden; min-height: 230px; border-radius: 28px; background: #f8fdff; border: 4px solid #fff; box-shadow: inset 0 0 0 1px rgba(23, 32, 51, 0.08); margin-bottom: 18px; }
.tile-grid { position: absolute; inset: 0; background-image: linear-gradient(#d9eef9 1px, transparent 1px), linear-gradient(90deg, #d9eef9 1px, transparent 1px); background-size: 34px 34px; opacity: .72; }
.water-fill { position: absolute; inset: 0; transform-origin: bottom; background: linear-gradient(180deg, rgba(186, 230, 253, .92) 0%, rgba(56, 189, 248, .92) 45%, rgba(14, 165, 233, .96) 100%); transition: transform 0.45s ease, background 0.35s ease; }
.water-fill::before { content: ""; position: absolute; left: -12%; right: -12%; top: -18px; height: 36px; background: radial-gradient(circle at 24px 18px, rgba(255,255,255,.78) 0 12px, transparent 13px); background-size: 48px 36px; opacity: .9; }
.shower-head { position: absolute; top: 22px; right: 26px; font-size: clamp(3.2rem, 10vw, 5.4rem); filter: drop-shadow(0 12px 18px rgba(15,76,129,.18)); }
.duck { position: absolute; left: 26px; bottom: 22px; font-size: clamp(3rem, 9vw, 5rem); filter: drop-shadow(0 12px 18px rgba(15,76,129,.18)); }
.time { font-size: clamp(3rem, 11vw, 5.4rem); line-height: 1; font-weight: 950; letter-spacing: -0.08em; margin-top: 2px; }
.timer-card h2 { font-size: clamp(1.45rem, 3vw, 2rem); margin: 12px 0 8px; }
.timer-card p { color: var(--muted); line-height: 1.5; margin: 0 auto 16px; max-width: 36ch; }
.prompt-box { background: #e0f7ff; border: 2px dashed #1597d3; border-radius: 18px; padding: 14px; margin: 16px 0 20px; font-size: 1.05rem; font-weight: 950; }
.primary, .secondary { border-radius: 16px; padding: 13px 18px; font-weight: 950; }
.primary { background: var(--blue); color: white; min-width: 160px; box-shadow: 0 12px 24px rgba(21, 151, 211, 0.26); }
.secondary { background: #e8f7ff; color: var(--deep); }
.small { padding: 11px 13px; }
.content-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 18px 0; }
.info-card, .tips, .faq { padding: clamp(20px, 3vw, 28px); }
h2 { letter-spacing: -0.03em; }
li { margin: 9px 0; color: var(--muted); line-height: 1.55; }
.tips { margin-bottom: 18px; }
.tip-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.tip-grid div { background: #f2fbff; border: 1px solid #d7e8f3; border-radius: 18px; padding: 16px; font-weight: 950; text-align: center; }
.faq { margin-bottom: 38px; }
details { border-top: 1px solid var(--line); padding: 15px 0; }
details:first-of-type { border-top: 0; }
summary { cursor: pointer; font-weight: 950; }
details p { color: var(--muted); line-height: 1.6; }
body.running .water-fill { background: linear-gradient(180deg, rgba(125, 211, 252, .94) 0%, rgba(14, 165, 233, .95) 52%, rgba(2, 132, 199, .98) 100%); }
body.final-minute .water-fill { background: linear-gradient(180deg, rgba(254, 215, 170, .96) 0%, rgba(251, 146, 60, .95) 52%, rgba(239, 68, 68, .95) 100%); }
body.done .water-fill { background: linear-gradient(180deg, rgba(187, 247, 208, .98) 0%, rgba(74, 222, 128, .96) 60%, rgba(22, 163, 74, .98) 100%); }
.site-nav{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:16px;margin:8px 0 24px;padding:12px 16px;background:rgba(255,255,255,.86);border:1px solid #e1e5ee;border-radius:24px;box-shadow:0 10px 24px rgba(22,31,54,.06);backdrop-filter:blur(12px)}
.site-brand{display:inline-flex;align-items:center;gap:10px;color:#172033;text-decoration:none;font-weight:800}.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:#172033;color:#fff;font-weight:900}.site-nav a:not(.site-brand){color:#4b5565;text-decoration:none;font-weight:700;font-size:.95rem}.site-nav a:hover{text-decoration:underline}
@media (max-width: 820px) {
  .hero-grid, .content-grid { grid-template-columns: 1fr; }
  .crumb { align-items: flex-start; flex-direction: column; }
  .tip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  main { width: min(100% - 20px, 1120px); }
  .preset-row .pill { width: 100%; }
  .custom-row input { width: 74px; }
  .primary, .secondary.small { flex: 1; }
  .actions .primary, .actions .secondary { width: 100%; }
  .tip-grid { grid-template-columns: 1fr; }
  .site-nav{margin-top:8px;padding:10px 12px;border-radius:20px}.site-nav a:not(.site-brand){font-size:.9rem}.brand-mark{width:30px;height:30px}.site-brand span:last-child{max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}