:root{
  --bg:#f1f8ff;
  --card:#ffffff;
  --ink:#102238;
  --muted:#5b6b7d;
  --blue:#2563eb;
  --cyan:#06b6d4;
  --mint:#dcfce7;
  --line:#bfdbfe;
  --amber:#f59e0b;
  --shadow:0 24px 60px rgba(37,99,235,.15);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:radial-gradient(circle at 12% 6%,#dbeafe,transparent 28rem),radial-gradient(circle at 88% 10%,#ccfbf1,transparent 24rem),linear-gradient(180deg,#fbfdff,var(--bg))}
main{max-width:1120px;margin:0 auto;padding:22px}.site-nav{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 24px;padding:12px 16px;background:rgba(255,255,255,.9);border:1px solid #d7e8f0;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:850}.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:#172033;color:#fff}.site-nav a:not(.site-brand),.crumb a{color:var(--blue);text-decoration:none;font-weight:800}.site-nav a:hover,.crumb a:hover{text-decoration:underline}.crumb{display:flex;justify-content:space-between;gap:12px;margin-bottom:28px;color:var(--muted);font-size:.94rem}.hero{padding:10px 0 42px}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 440px;gap:34px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.14em;color:var(--blue);font-weight:950;font-size:.78rem;margin:0 0 12px}h1{font-size:clamp(2.45rem,6.4vw,5.1rem);letter-spacing:-.045em;line-height:.94;margin:0 0 18px}h2{letter-spacing:-.035em}.lede{font-size:clamp(1.08rem,2vw,1.32rem);line-height:1.65;color:var(--muted);max-width:650px}.preset-row,.controls-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.preset,.pill,.primary,.secondary{border:0;border-radius:999px;font-weight:900;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.preset,.pill{padding:11px 15px;background:#fff;border:1px solid var(--line);color:var(--ink);box-shadow:0 8px 20px rgba(37,99,235,.08)}.preset:hover,.pill:hover,.primary:hover,.secondary:hover{transform:translateY(-1px)}.preset.active,.pill.active{background:var(--blue);color:#fff;border-color:var(--blue)}.custom-label{display:inline-flex;align-items:center;gap:9px;padding:8px 8px 8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:850;color:var(--ink)}input{width:82px;border:0;background:#eff6ff;border-radius:999px;padding:10px 12px;font:inherit;font-weight:850;color:var(--ink)}.micro-note{color:var(--muted);font-weight:750;margin-top:14px}.timer-card{background:rgba(255,255,255,.94);border:1px solid #dbeafe;border-radius:36px;padding:26px;box-shadow:var(--shadow);text-align:center}.progress-wrap{position:relative;width:min(310px,78vw);margin:0 auto 18px}.ring{width:100%;height:auto;transform:rotate(-90deg)}.ring-bg,.ring-fill{fill:none;stroke-width:16}.ring-bg{stroke:#e0f2fe}.ring-fill{stroke:var(--cyan);stroke-linecap:round;transition:stroke-dashoffset .35s linear}.time{position:absolute;inset:0;display:grid;place-items:center;font-size:clamp(3rem,13vw,5rem);font-weight:950;letter-spacing:-.06em}.timer-card h2{font-size:1.45rem;margin:0 0 8px}.timer-card p{color:var(--muted);line-height:1.55;margin:0 auto 18px;max-width:34rem}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:22px 0}.steps div{padding:11px 8px;border-radius:18px;border:1px solid #dbeafe;background:#f8fbff;color:var(--muted)}.steps div.active{background:#eff6ff;border-color:var(--blue);color:var(--ink);box-shadow:0 10px 22px rgba(37,99,235,.12)}.steps strong{display:block;font-size:.92rem}.steps span{font-size:.78rem}.actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.primary,.secondary{padding:14px 21px}.primary{background:var(--blue);color:#fff;box-shadow:0 14px 30px rgba(37,99,235,.26)}.secondary{background:#e0f2fe;color:#0f172a}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0}.info-card,.tips,.faq,.related{background:rgba(255,255,255,.86);border:1px solid #dbeafe;border-radius:28px;padding:24px;box-shadow:0 16px 36px rgba(30,64,175,.08)}.info-card h2,.tips h2,.faq h2,.related h2{margin-top:0}.info-card li{margin:10px 0;color:var(--muted);line-height:1.55}.highlight{background:linear-gradient(135deg,#eff6ff,#ecfeff)}.note{font-weight:850;color:#1e3a8a}.tip-grid,.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.tip-grid div,.related-grid a{padding:15px;border-radius:20px;background:#fff;border:1px solid #dbeafe}.tip-grid strong{display:block;margin-bottom:6px}.tip-grid span{color:var(--muted);line-height:1.45}.faq details{border-top:1px solid #dbeafe;padding:15px 0}.faq details:first-of-type{border-top:0}.faq summary{cursor:pointer;font-weight:900}.faq p{color:var(--muted);line-height:1.6}.related-grid{grid-template-columns:repeat(4,1fr)}.related-grid a{color:var(--blue);font-weight:900;text-decoration:none}.related-grid a:hover{text-decoration:underline}footer{text-align:center;color:var(--muted);padding:34px 0 18px}
@media (max-width:880px){main{padding:16px}.hero-grid,.content-grid{grid-template-columns:1fr}.timer-card{order:-1}.crumb{display:block}.related-grid,.tip-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.site-nav{border-radius:18px}.timer-card{padding:20px;border-radius:28px}.steps,.related-grid,.tip-grid{grid-template-columns:1fr}.actions .primary,.actions .secondary{width:100%}h1{font-size:2.65rem}}