:root{
  --bg:#0b0f17;--bg2:#111827;--fg:#e8edf5;--muted:#93a0b4;--line:#1f2a3b;
  --accent:#22d3ee;--accent2:#a78bfa;--danger:#fb7185;--ok:#34d399;
  --ring-track:#1b2535;--link:#67e8f9;--radius:16px;--max:72rem;
  color-scheme:dark light;
}
@media (prefers-color-scheme:light){
  :root{--bg:#f7f9fc;--bg2:#ffffff;--fg:#0f172a;--muted:#55657d;--line:#e3e8f0;--ring-track:#e6ebf3;--link:#0e7490;--ok:#047857}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--link)}
.prose a,.lead a,.muted a{text-decoration:underline;text-underline-offset:.15em}
nav a,.chips a,.brand,footer a{text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(1.75rem,4vw,2.5rem)}h2{font-size:clamp(1.3rem,3vw,1.75rem);margin-top:1.5em}h3{font-size:1.1rem}
p,li{color:var(--fg)}
.muted{color:var(--muted)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.25rem}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#000;padding:.5rem 1rem;z-index:10}
.skip:focus{left:1rem;top:1rem}

/* header */
header{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(8px);position:sticky;top:0;z-index:5}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:60px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700;color:var(--fg);letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.logo{width:28px;height:28px}
.logo .arc{stroke-dasharray:62.8;stroke-dashoffset:62.8;animation:sweep 5s linear infinite}
@keyframes sweep{to{stroke-dashoffset:0}}
.nav ul{display:flex;gap:.25rem;list-style:none;margin:0;padding:0}
.nav li a{display:block;padding:.45rem .75rem;border-radius:8px;color:var(--muted);font-size:.95rem}
.nav li a:hover,.nav li a[aria-current]{color:var(--fg);background:var(--bg2);text-decoration:none}
@media (max-width:640px){.nav ul li:nth-child(n+3){display:none}}

/* breadcrumb */
.crumbs{font-size:.85rem;color:var(--muted);margin:1rem 0 0}
.crumbs ol{list-style:none;display:flex;gap:.5rem;padding:0;margin:0;flex-wrap:wrap}
.crumbs li+li::before{content:"›";margin-right:.5rem;color:var(--line)}
.crumbs a{color:var(--muted)}

/* timer */
.hero{display:grid;grid-template-columns:1fr;gap:1.5rem;padding:1.5rem 0 2rem;align-items:center}
@media (max-width:859px){.timer-wrap{order:-1}}
@media (min-width:860px){.hero{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:3rem;padding:2.5rem 0 3rem}}
.hero h1{margin-bottom:.4em}.hero .lead{font-size:1.1rem;color:var(--muted);margin:0 0 1rem;max-width:36rem}
.timer{position:relative;margin:0 auto;width:min(100%,420px);aspect-ratio:1;user-select:none}
.timer svg{width:100%;height:100%;display:block;transform:rotate(-90deg)}
.timer .track{fill:none;stroke:var(--ring-track);stroke-width:10}
.timer .prog{fill:none;stroke:url(#g);stroke-width:10;stroke-linecap:round;transition:stroke-dashoffset .25s linear}
.timer .ticks line{stroke:var(--line);stroke-width:2}
.readout{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem}
.time{font-size:clamp(3.2rem,15vw,5.75rem);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.03em;line-height:1}
.phase{font-size:.9rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);min-height:1.2em}
.timer.done .prog{animation:pulse 1s ease-in-out infinite}
.timer.done .time{color:var(--accent)}
@keyframes pulse{50%{stroke-width:16;opacity:.6}}
.controls{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-top:1.25rem}
.btn{appearance:none;border:1px solid var(--line);background:var(--bg2);color:var(--fg);padding:.75rem 1.25rem;border-radius:999px;font:inherit;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:.5rem;transition:transform .1s,background .15s,border-color .15s}
.btn:hover{border-color:var(--accent)}.btn:active{transform:scale(.97)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn.primary{background:var(--accent);color:#031018;border-color:var(--accent);min-width:8.5rem;justify-content:center}
.btn.primary:hover{filter:brightness(1.08)}
.btn svg{width:18px;height:18px;fill:currentColor}
.btn[aria-pressed="false"] .on,.btn[aria-pressed="true"] .off{display:none}
.hint{text-align:center;font-size:.85rem;color:var(--muted);margin-top:.75rem}
kbd{font:inherit;font-size:.8em;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:.05em .4em;background:var(--bg2)}

/* custom inputs */
.setter{display:flex;gap:.5rem;justify-content:center;align-items:end;margin-top:1rem;flex-wrap:wrap}
.setter label{display:flex;flex-direction:column;font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;gap:.3rem}
.setter input{width:5.5rem;font:inherit;font-size:1.4rem;font-variant-numeric:tabular-nums;text-align:center;padding:.5rem;border-radius:10px;border:1px solid var(--line);background:var(--bg2);color:var(--fg)}
.setter input:focus{outline:2px solid var(--accent);border-color:transparent}
.presets{display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center;margin-top:.75rem}
.presets button{font:inherit;font-size:.85rem;padding:.35rem .75rem;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.presets button:hover{color:var(--fg);border-color:var(--accent)}
.presets button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#031018}
.setter select{font:inherit;font-size:1rem;padding:.7rem .75rem;border-radius:10px;border:1px solid var(--line);background:var(--bg2);color:var(--fg)}
.setter select:focus{outline:2px solid var(--accent);border-color:transparent}
.toggle{display:flex;justify-content:center;align-items:center;gap:.5rem;margin-top:.75rem;font-size:.95rem;color:var(--muted);cursor:pointer}
.toggle input{width:1.15rem;height:1.15rem;margin:0;accent-color:var(--accent)}
.btn:disabled{opacity:.5;cursor:not-allowed}.btn:disabled:hover{border-color:var(--line)}

/* tool modes */
.timer.rest .prog{stroke:var(--ok)}
.timer.rest .phase{color:var(--ok)}
.timer[data-stopwatch] .prog{transition:none}
.time .cs{font-size:.42em;letter-spacing:0;color:var(--muted)}
.timer[data-meditation].done .prog{animation:none}
.timer[data-meditation].done .time{color:var(--fg)}
.tbl{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;margin:1rem 0}
.tbl th,.tbl td{padding:.45rem .6rem;border-bottom:1px solid var(--line);text-align:left}
.tbl thead th{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600}
.tbl tbody th{font-weight:500}
.laps{max-width:420px;margin:1rem auto 0}
.laps th:not(:first-child),.laps td{text-align:right}

/* content */
main{padding-bottom:3rem}
.prose{max-width:46rem}
.prose ul{padding-left:1.25rem}.prose li{margin:.35rem 0}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin:1rem 0}
.card{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem}
.card h3{margin-top:0;display:flex;align-items:center;gap:.5rem}
.card svg{width:22px;height:22px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.card p{margin:0;color:var(--muted);font-size:.95rem}
.faq details{border-top:1px solid var(--line);padding:.75rem 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq p{margin:.5rem 0 0;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:1rem 0}
.chips a{display:inline-block;padding:.45rem .9rem;border-radius:999px;border:1px solid var(--line);background:var(--bg2);color:var(--fg);font-size:.9rem;font-weight:500}
.chips a:hover{border-color:var(--accent);text-decoration:none}
.chips a[aria-current]{background:var(--accent);color:#031018;border-color:var(--accent)}

/* footer */
footer{border-top:1px solid var(--line);padding:2rem 0;color:var(--muted);font-size:.9rem}
footer .cols{display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
footer h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
footer ul{list-style:none;padding:0;margin:0}footer li{margin:.3rem 0}footer a{color:var(--fg)}
footer .legal{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem}

/* fullscreen */
.timer-wrap:fullscreen{background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem}
.timer-wrap:fullscreen .timer{width:min(80vh,90vw)}
.timer-wrap:fullscreen .time{font-size:min(22vh,20vw)}
.timer-wrap:fullscreen:has(.laps:not([hidden])) .timer{width:min(55vh,90vw)}
.timer-wrap:fullscreen .laps{width:min(80vh,90vw)}
.timer-wrap:fullscreen .laps tbody tr:nth-child(n+6){display:none}

@media (prefers-reduced-motion:reduce){
  .logo .arc,.timer.done .prog{animation:none}
  .timer .prog{transition:none}
  html{scroll-behavior:auto}
}