:root{--bg:#fff7f5;--card:#fff;--ink:#1c1917;--mute:#57534e;--line:#eadfdb;--pri:#dc2626;--pri2:#b91c1c;--soft:#fee2e2;--brk:#0f766e;--brksoft:#ccfbf1;--hdr:#fff;--sans:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
[data-theme=ocean]{--bg:#f0f7ff;--line:#d8e3f0;--pri:#1d4ed8;--pri2:#1e40af;--soft:#dbeafe;--brk:#0e7490;--brksoft:#cffafe}
[data-theme=forest]{--bg:#f3f8f2;--line:#d9e6d6;--pri:#15803d;--pri2:#166534;--soft:#dcfce7;--brk:#7c3aed;--brksoft:#ede9fe}
[data-theme=night]{--bg:#0f1115;--card:#181b22;--ink:#e7e9ee;--mute:#a3a9b6;--line:#2a2f3a;--pri:#f97316;--pri2:#fb923c;--soft:#2b1f16;--brk:#2dd4bf;--brksoft:#12302d;--hdr:#14171d}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font:16px/1.6 var(--sans);color:var(--ink);background:var(--bg);transition:background .3s}
a{color:var(--pri)}a:hover{color:var(--pri2)}img{max-width:100%}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:9}
header.top{background:var(--hdr);border-bottom:1px solid var(--line)}
.wrap{max-width:1140px;margin:0 auto;padding:0 16px}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:60px;gap:12px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;color:var(--ink);text-decoration:none}.logo img{width:30px;height:30px}
nav#nav{display:flex;gap:4px;flex-wrap:wrap}nav#nav a{padding:6px 10px;border-radius:8px;text-decoration:none;color:var(--mute);font-size:15px}nav#nav a:hover,nav#nav a[aria-current]{background:var(--soft);color:var(--pri2)}
.menu-btn{display:none;background:none;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:15px;cursor:pointer}
@media(max-width:960px){.menu-btn{display:block}nav#nav{display:none;position:absolute;left:0;right:0;top:60px;background:var(--hdr);flex-direction:column;padding:8px 16px;border-bottom:1px solid var(--line);z-index:5}nav#nav.open{display:flex}header.top{position:relative}}
main{display:block;padding:8px 0 24px}
h1{font-size:clamp(24px,3.6vw,34px);line-height:1.2;margin:16px 0 6px}h2{font-size:22px;margin:28px 0 8px}h3{font-size:18px;margin:18px 0 6px}
.lead{color:var(--mute);margin:0 0 14px;font-size:17px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
input,select{font:inherit;width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);min-height:40px}
input[type=checkbox]{width:18px;height:18px;min-height:0;accent-color:var(--pri)}input[type=range]{padding:0;min-height:24px;accent-color:var(--pri)}
input:focus,select:focus,button:focus-visible{outline:3px solid color-mix(in srgb,var(--pri) 45%,transparent);outline-offset:1px}
label{font-size:14px;font-weight:600;color:var(--mute);display:block;margin-bottom:4px}
.btn{font:inherit;border:0;border-radius:10px;padding:10px 16px;background:var(--pri);color:#fff;cursor:pointer;font-weight:700;min-height:42px}.btn:hover{background:var(--pri2)}
.btn.ghost{background:var(--soft);color:var(--pri2)}[data-theme=night] .btn.ghost{color:var(--pri2)}
.btn.sm{padding:6px 12px;min-height:34px;font-size:14px}
.app{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}
@media(max-width:980px){.app{grid-template-columns:1fr}}
.app-side>*{margin-bottom:16px}
.timer{text-align:center;padding:22px 18px}
.modes{display:inline-flex;gap:4px;background:var(--soft);border-radius:12px;padding:4px;flex-wrap:wrap;justify-content:center}
.mode-tab{font:inherit;border:0;background:none;color:var(--mute);padding:7px 14px;border-radius:9px;cursor:pointer;font-weight:600}
.mode-tab[aria-selected=true]{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.ring{--p:0deg;--c:var(--pri);width:min(320px,78vw);aspect-ratio:1;margin:20px auto 12px;border-radius:50%;background:conic-gradient(var(--c) var(--p),var(--soft) 0);display:grid;place-items:center}
[data-mode=short] .ring,[data-mode=long] .ring{--c:var(--brk);background:conic-gradient(var(--c) var(--p),var(--brksoft) 0)}
.ring-in{width:88%;aspect-ratio:1;border-radius:50%;background:var(--card);display:flex;flex-direction:column;align-items:center;justify-content:center}
#t-time{font-size:clamp(52px,12vw,84px);font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1}
#t-label{font-weight:700;color:var(--pri);text-transform:uppercase;letter-spacing:.08em;font-size:14px}
[data-mode=short] #t-label,[data-mode=long] #t-label{color:var(--brk)}
#t-round{color:var(--mute);font-size:14px}#t-task{color:var(--mute);font-size:15px;min-height:24px;margin:4px 0}
.ctrls{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:8px}
#t-start{font-size:20px;padding:12px 40px;min-width:170px}
[data-mode=short] #t-start,[data-mode=long] #t-start{background:var(--brk)}
.kbd{font-size:13px;color:var(--mute);margin-top:10px}
.themes{display:flex;gap:6px;justify-content:center;margin-top:12px}.theme-btn{width:26px;height:26px;border-radius:50%;border:2px solid var(--line);cursor:pointer}.theme-btn[aria-pressed=true]{border-color:var(--ink)}
.sgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}
.chk{display:flex;gap:8px;align-items:center;font-weight:500;color:var(--ink)}
details.box{margin-top:14px;text-align:left}details.box>summary{font-weight:700;cursor:pointer}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0}summary{font-weight:600;cursor:pointer}
.snd{display:grid;grid-template-columns:110px 1fr;gap:10px;align-items:center;padding:4px 0}
.snd button{font:inherit;font-size:14px;text-align:left;background:none;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:5px 8px;cursor:pointer}
.snd.on button{background:var(--soft);border-color:var(--pri);color:var(--pri2);font-weight:700}
.mix-top{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.mix-pres{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}
.mix-pre{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--card);color:var(--mute);border-radius:20px;padding:3px 10px;cursor:pointer}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
#task-form{display:flex;gap:8px}#task-list{list-style:none;margin:10px 0 0;padding:0}
#task-list li{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--line)}
.task-t{flex:1;text-align:left;font:inherit;background:none;border:0;color:var(--ink);cursor:pointer;padding:2px;word-break:break-word}
#task-list li.active .task-t{font-weight:700;color:var(--pri2)}#task-list li.active .task-t::before{content:"\25B6  ";font-size:11px}
#task-list li.done .task-t{text-decoration:line-through;color:var(--mute)}.task-p{font-size:13px;color:var(--mute)}
.task-x{font:inherit;background:none;border:0;color:var(--mute);font-size:20px;cursor:pointer;line-height:1;padding:0 6px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}.stats b{display:block;font-size:22px}.stats span{font-size:12px;color:var(--mute)}
#s-week{display:flex;gap:6px;height:80px;align-items:flex-end;margin-top:12px}.bar{flex:1;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:flex-end}
.bar i{display:block;width:100%;background:var(--pri);border-radius:4px 4px 0 0;min-height:2px}.bar span{font-size:11px;color:var(--mute)}
.below{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}@media(max-width:760px){.below{grid-template-columns:1fr}}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:12px 0}
.tile{display:block;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}.tile:hover{border-color:var(--pri)}.tile b{display:block;color:var(--pri2)}.tile span{font-size:14px;color:var(--mute)}
.prose{max-width:780px}.ref{border-collapse:collapse;width:100%;font-size:15px}.ref th,.ref td{border:1px solid var(--line);padding:6px 8px;text-align:left}
.crumbs{font-size:14px;color:var(--mute);margin-top:12px}.crumbs a{color:var(--mute)}
#exam .grid{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:10px;align-items:end}@media(max-width:640px){#exam .grid{grid-template-columns:1fr 1fr}}
#exam-list{list-style:none;padding:0;margin:14px 0 0}#exam-list li{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:12px 0;border-bottom:1px solid var(--line)}
.ex-when{color:var(--mute);font-size:14px;grid-column:1}.ex-cd{font-size:clamp(22px,4vw,32px);font-weight:800;color:var(--pri);font-variant-numeric:tabular-nums;grid-column:1}.ex-wk{font-size:14px;color:var(--mute);grid-column:1}#exam-list .task-x{grid-column:2;grid-row:1/5;align-self:center}
footer.foot{background:#1c1917;color:#d6d3d1;margin-top:32px;padding:28px 0;font-size:15px}footer.foot a{color:#f5f5f4}
.fcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}.fcols h3{color:#fff;font-size:16px;margin:0 0 8px}.fcols ul{list-style:none;margin:0;padding:0}.fcols li{margin:4px 0}
.copy{margin-top:20px;border-top:1px solid #292524;padding-top:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}.visits{font-size:14px}
/* focus / fullscreen mode: only the timer (+ sound controls) remain, ads hidden */
body.focus header.top,body.focus footer.foot,body.focus .adst,body.focus .page-copy,body.focus .app-side,body.focus .below,body.focus h1,body.focus .lead,body.focus .crumbs,body.focus details.box{display:none!important}
body.focus .app{grid-template-columns:1fr;min-height:100vh;align-content:center}body.focus main{padding:0}
body.focus .timer{border:0;box-shadow:none;background:transparent}body.focus .ring{width:min(520px,80vh,90vw)}body.focus #t-time{font-size:clamp(64px,14vh,140px)}