:root{--bg:#f6f7fb;--card:#ffffff;--ink:#1c1c22;--mute:#5b5e67;--line:#d9dde7;--soft:#ebeef7;--pri:#1d2f6f;--g1:#1d2f6f;--g2:#1a2a61;--bad:#b42318;--ok:#15803d;--warn:#8a5a00;--warnbg:#fcefc7;--field:#ffffff;--shadow:rgba(15,15,30,.08);--hdr:#1a223d;--now:#c62f34;--soon:#9a6a00;--later:#127a66;--grid:#e8eaf2;--onpri:#ffffff;--onok:#ffffff;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#111318;--card:#1b1e24;--ink:#ececf1;--mute:#acafb9;--line:#363944;--soft:#272c39;--pri:#9db4ff;--g1:#323e67;--g2:#1b2031;--bad:#f87171;--ok:#4ade80;--warn:#fbbf24;--warnbg:#3a2e0b;--field:#16171d;--shadow:rgba(0,0,0,.35);--hdr:#151820;--now:#ff7a7e;--soon:#f5c04a;--later:#4fd1b5;--grid:#17191f;--onpri:#14141a;--onok:#14141a}}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,Arial,sans-serif;padding-bottom:70px}
header{padding:16px;background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;font-weight:700;font-size:18px}
main{max-width:640px;margin:0 auto;padding:14px}
nav{position:fixed;left:0;right:0;bottom:0;display:flex;background:var(--card);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px)}
nav button{flex:1;padding:14px 0;border:0;background:none;color:var(--mute);font-size:12px;font-weight:600}
nav button.on{color:var(--pri);border-top:3px solid var(--pri)}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px}
input,select{width:100%;padding:9px;border:1px solid var(--line);border-radius:6px;background:var(--field);color:var(--ink);font-size:15px;margin-bottom:8px}
.row{display:flex;gap:8px}.row>*{flex:1;min-width:0}
.btn{background:var(--pri);color:var(--onpri);border:0;border-radius:6px;padding:10px;font-size:15px;width:100%;font-weight:600;margin-bottom:12px}
.card .btn{margin-bottom:0}
.pill{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:20px;padding:5px 12px;font-size:13px}
.pill.on{background:var(--pri);color:var(--onpri);border-color:var(--pri)}
.item,.blk{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.item:last-child{border:0}
.blk{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin-bottom:6px}
.tm{font-size:11px;color:var(--mute);width:64px;flex:none;line-height:1.5}
.t{flex:1;min-width:0;word-break:break-word}
.s{font-size:12px;color:var(--mute)}
.tag{font-size:11px;border-radius:10px;padding:1px 7px;margin-right:4px}
.done .t{text-decoration:line-through;color:var(--mute)}
.chk{width:24px;height:24px;border-radius:50%;border:2px solid var(--pri);background:none;color:var(--onpri);flex:none;padding:0}
.done .chk{background:var(--pri)}
.x{border:0;background:none;color:var(--mute);font-size:18px}
.dot{width:8px;height:8px;border-radius:50%;flex:none}
.h{background:var(--bad)}.m{background:#e6a100}.l{background:var(--ok)}
.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;text-align:center}
.grid .dn{font-size:11px;color:var(--mute)}
.day{aspect-ratio:1;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);font-size:14px;padding:0;position:relative}
.day.today{border-color:var(--pri);font-weight:700}
.day.sel{background:var(--pri);color:var(--onpri)}
.day i{position:absolute;bottom:3px;left:50%;width:5px;height:5px;margin-left:-2.5px;border-radius:50%;background:var(--bad)}
.nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-weight:700;text-align:center}
.nav button{border:0;background:var(--soft);color:var(--ink);border-radius:6px;padding:6px 14px;font-size:16px}
.sum{display:flex;gap:8px;margin-bottom:12px}
.sum div{flex:1;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center;font-size:12px;color:var(--mute)}
.sum b{display:block;font-size:17px;color:var(--ink);margin-top:2px}
.bar{height:8px;background:var(--soft);border-radius:4px;overflow:hidden;margin:3px 0 10px}
.bar span{display:block;height:100%;background:var(--pri)}
.in{color:var(--ok)}.out{color:var(--bad)}
.warn{border-color:var(--bad);font-size:13px}
.empty{color:var(--mute);text-align:center;padding:14px;font-size:14px}
.days{display:flex;gap:4px;margin-bottom:8px}
.days label{flex:1;text-align:center;font-size:12px;background:var(--soft);border-radius:6px;padding:6px 0}
.days input{width:auto;display:block;margin:0 auto 2px}
h3{margin:4px 0 10px;font-size:15px}
summary{font-weight:600;font-size:14px;cursor:pointer;margin-bottom:8px}
button.wh{border:0;background:none;color:var(--ink);font-size:11px;padding:2px 0;text-align:center}
button.wh.today{color:var(--pri);font-weight:700}
.wg{display:grid;grid-template-columns:30px repeat(7,1fr);gap:2px}
.wc{position:relative;border-radius:4px;background-color:var(--card);background-image:linear-gradient(var(--line) 1px,transparent 1px);background-size:100% 42px}
.wb{position:absolute;left:1px;right:1px;border-radius:4px;font-size:9px;line-height:1.15;padding:1px 2px;overflow:hidden}
.nowl{position:absolute;left:0;right:0;height:2px;background:var(--bad);z-index:2}
header{padding:18px 16px;border-radius:0 0 18px 18px;box-shadow:0 2px 8px rgba(0,0,0,.18);background:linear-gradient(135deg,var(--g1),var(--g2))}
.card{border-radius:14px;box-shadow:0 1px 3px var(--shadow)}
.btn{border-radius:10px}
input,select{border-radius:8px}
nav{box-shadow:0 -2px 10px rgba(0,0,0,.07)}
nav button{border-radius:12px;margin:4px 2px;padding:10px 0}
nav button.on{border-top:0;background:var(--soft)}
.seg{display:flex;background:var(--soft);border-radius:10px;padding:3px;margin-bottom:12px}
.seg button{flex:1;border:0;background:none;padding:8px;border-radius:8px;color:var(--ink);font-weight:600;font-size:14px}
.seg button.on{background:var(--card);color:var(--pri);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.sw{width:38px;height:38px;border-radius:50%;border:3px solid transparent;padding:0}
.sw.on{border-color:var(--ink)}
textarea{width:100%;min-height:110px;padding:9px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font-size:14px;font-family:inherit;margin-bottom:8px}
footer{text-align:center;color:var(--mute);font-size:11px;padding:10px}

/* ---- polish ---- */
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.4;-webkit-font-smoothing:antialiased}
header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;font-size:19px;letter-spacing:.2px;position:sticky;top:0;z-index:20}
#sync{font-size:12px;font-weight:500;background:rgba(0,0,0,.28);color:#fff;padding:4px 12px;border-radius:20px}
main{max-width:780px;padding:18px 16px}
nav{z-index:20}
nav button{display:flex;flex-direction:column;align-items:center;gap:2px;transition:background .15s,color .15s,transform .1s}
nav button i{font-style:normal;font-size:20px;line-height:1}
nav button span{font-size:11px}
nav button:active{transform:scale(.95)}
.card{transition:transform .15s,box-shadow .15s;margin-bottom:14px}

.btn{box-shadow:0 2px 6px rgba(0,0,0,.16);transition:transform .1s,filter .15s}
.btn:hover{filter:brightness(1.08)}
.btn:active,.pill:active{transform:scale(.96)}
.btn:disabled{opacity:.5}
.pill{transition:background .15s,color .15s,border-color .15s}
.pill:hover{border-color:var(--pri)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--pri);outline-offset:-1px}
.hero{background:linear-gradient(135deg,var(--g1),var(--g2));color:#fff;border:0;box-shadow:0 6px 18px var(--shadow)}
.hero .s{color:#fff}
.chip{display:inline-block;font-size:11px;padding:1px 8px;border-radius:10px;background:var(--soft);color:var(--ink);margin-right:4px;border:0}
.chip.bad{background:color-mix(in srgb,var(--bad) 14%,var(--card));color:var(--bad);font-weight:600}
.chip.warn{background:var(--warnbg);color:var(--warn);font-weight:600}
button.chip.nodate{border:1px dashed var(--mute);background:none;color:var(--mute);cursor:pointer}
button.chip.nodate:hover{border-color:var(--pri);color:var(--pri)}
.item{padding:10px 6px;border-radius:8px;transition:background .15s}
.item:hover{background:var(--soft)}
.chk{transition:background .15s}
.just .chk{animation:pop .35s}
@keyframes pop{0%{transform:scale(.6)}60%{transform:scale(1.3)}100%{transform:scale(1)}}
.editbox{background:var(--soft);border-radius:12px;padding:12px;margin:6px 0}
.editbox .qd{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.ringw{position:relative;display:grid;place-items:center;flex:none}
.ringw svg{position:absolute;inset:0;transform:rotate(-90deg)}
.ringw>*:not(svg){position:relative}
.fade{animation:fade .28s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.toast{position:fixed;left:50%;bottom:92px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:24px;font-size:14px;z-index:60;box-shadow:0 6px 20px rgba(0,0,0,.3);animation:tin .25s}
.toast.out{opacity:0;transition:opacity .4s}
@keyframes tin{from{opacity:0;margin-bottom:-10px}}
.conf{position:fixed;width:8px;height:8px;border-radius:2px;z-index:70;pointer-events:none;animation:conf .85s ease-out forwards}
@keyframes conf{0%{transform:translate(0,0) scale(1);opacity:1}100%{transform:translate(var(--dx),calc(var(--dy) + 90px)) rotate(540deg) scale(.5);opacity:0}}
.empty{padding:22px;line-height:1.7}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (min-width:900px){
  body{padding-left:210px;padding-bottom:24px}
  main{max-width:1180px;padding:24px 32px}
  nav{top:64px;bottom:auto;right:auto;width:210px;height:calc(100vh - 64px);flex-direction:column;justify-content:flex-start;gap:4px;padding:16px 12px;border-top:0;border-right:1px solid var(--line);box-shadow:none}
  nav button{flex:none;flex-direction:row;gap:12px;text-align:left;padding:12px 14px;margin:0;font-size:15px}
  nav button span{font-size:15px}
  nav button i{font-size:19px}
  .cols{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
  .mcols{grid-template-columns:1.7fr 1fr}
  .tgrid{display:grid;grid-template-columns:1.5fr 1fr;grid-template-areas:"a b" "c b";column-gap:20px;align-items:start}
  .day{aspect-ratio:1.5;font-size:16px}
  .wb{font-size:11px}
  .toast{bottom:28px}
}
@media (min-width:1500px){main{max-width:1400px}}

.dgrid{display:grid;grid-template-columns:44px 1fr 1fr 70px 28px;gap:6px;align-items:center;margin-bottom:6px}
.dgrid input{margin:0;padding:6px}
.dgrid.dh{font-size:11px;color:var(--mute)}

.stbox{background:var(--card);color:var(--ink);border-radius:10px;padding:10px 12px;margin-top:10px;font-size:13px;border-left:5px solid var(--mute);text-align:left}
.stbox.ok{border-color:var(--ok)}.stbox.info{border-color:var(--pri)}.stbox.warn{border-color:var(--warn)}.stbox.err{border-color:var(--bad)}

/* ---- v8: extension additions ---- */
.check{display:flex;align-items:center;gap:8px;margin:6px 0;font-size:14px}
.check input{width:auto;margin:0;flex:none}
.check label{flex:1;cursor:pointer}
input[type=range]{padding:0;border:0;background:none;accent-color:var(--pri);margin:4px 0 10px}
input[type=color]{padding:2px;height:40px}
a.lnk{color:var(--pri);text-decoration:none;font-size:12px;font-weight:600}
a.lnk:hover{text-decoration:underline}
.lbl{font-size:12px;color:var(--mute);margin:2px 0 4px;display:block}
.hrow{display:flex;justify-content:space-between;align-items:center;gap:8px}
.hrow h3{margin:4px 0}
.ghost{background:none!important;color:var(--pri)!important;box-shadow:none!important;border:1px solid var(--line)!important}
.btn.sec{background:var(--soft);color:var(--ink);box-shadow:none}
.btn.mute{background:var(--line);color:var(--ink);box-shadow:none}
.btn.sm{width:auto;padding:7px 14px;font-size:13px;margin:0}
.btnrow{display:flex;gap:8px;flex-wrap:wrap}
.btnrow .btn{flex:1;min-width:110px}
.stbox{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.hero .stbox{background:var(--card);color:var(--ink)}

/* focus */
.fwrap{text-align:center}
.fphase{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.6px;text-transform:uppercase;padding:4px 12px;border-radius:20px;background:var(--soft);color:var(--pri)}
.fphase.brk{background:color-mix(in srgb,var(--ok) 15%,var(--card));color:var(--ok)}
.ftime{font-size:64px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-1px;color:var(--pri)}
.ftime.brk{color:var(--ok)}
.fdots{display:flex;gap:6px;justify-content:center;margin:6px 0 12px}
.fdots i{width:10px;height:10px;border-radius:50%;background:var(--soft);border:1px solid var(--line)}
.fdots i.on{background:var(--pri);border-color:var(--pri)}
.presets{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin:10px 0}
.pgrid{display:grid;grid-template-columns:1.4fr repeat(4,1fr) 28px;gap:6px;align-items:center;margin-bottom:6px}
.pgrid input{margin:0;padding:6px}
.pgrid.ph{font-size:11px;color:var(--mute)}
.sndrow{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:center}
.sndrow select{margin:0}
.wk{display:flex;align-items:flex-end;gap:6px;height:120px;margin:8px 0 4px}
.wk div{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;font-size:11px;color:var(--mute)}
.wk span.b{width:100%;max-width:34px;background:var(--pri);border-radius:6px 6px 2px 2px;min-height:2px;opacity:.85}
.wk div.today span.b{opacity:1;box-shadow:0 0 0 2px color-mix(in srgb,var(--pri) 30%,transparent)}
.wk b{color:var(--ink);font-size:11px}
.minibar{position:fixed;left:50%;transform:translateX(-50%);bottom:84px;z-index:30;background:var(--pri);color:var(--onpri);border-radius:30px;padding:8px 8px 8px 16px;display:flex;gap:10px;align-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25);font-size:14px;cursor:pointer;max-width:calc(100% - 32px)}
.minibar.brk{background:var(--ok);color:var(--onok)}
.minibar b{font-variant-numeric:tabular-nums}
.minibar button{border:0;background:color-mix(in srgb,currentColor 18%,transparent);color:inherit;border-radius:20px;padding:5px 10px;font-weight:700;cursor:pointer}
.minibar .tt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:240px}
.conf-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.welcome ol{margin:6px 0 0 18px;padding:0;line-height:1.7}
code{background:var(--soft);padding:1px 5px;border-radius:4px;font-size:12px}
@media (min-width:900px){.minibar{bottom:24px;left:calc(50% + 105px)}}
@media (min-width:900px){header{margin-left:-210px;border-radius:0}}
.chip.lock{background:var(--warnbg);color:var(--warn);font-weight:600}
.rtab{width:100%;border-collapse:collapse;font-size:13px}
.rtab th{text-align:left;font-size:11px;color:var(--mute);font-weight:600;padding:4px 6px;border-bottom:1px solid var(--line)}
.rtab td{padding:6px;border-bottom:1px solid var(--line)}
.rtab td:not(:first-child),.rtab th:not(:first-child){text-align:center}
.sylrow{border-top:1px solid var(--line);padding:10px 0}
.sylrow:first-of-type{border-top:0}
.sylrow .btnrow .btn{min-width:0;flex:none}
.sylrow textarea{margin-top:6px}
a.pill{text-decoration:none;display:inline-block}
.frow{gap:8px;padding:7px 4px;cursor:pointer}
.frow.dim{opacity:.55;cursor:default}
.fic{font-size:18px;width:22px;text-align:center;flex:none}
.fgroup{border:1px solid var(--line);border-radius:10px;padding:6px 10px;margin-bottom:8px}
.fghead{display:flex;align-items:center;gap:8px;padding:4px 0}
.dlbar{position:sticky;bottom:76px;z-index:5;display:flex;gap:10px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 12px;box-shadow:0 6px 18px rgba(0,0,0,.12);margin-top:10px}
@media (min-width:900px){.dlbar{bottom:16px}}
.hcard{border-color:var(--pri)}

/* month calendar */
.seg.mini{display:inline-flex;margin:0 0 0 8px;padding:2px;vertical-align:middle}
.seg.mini button{padding:3px 10px;font-size:12px}
.day.other,.mcell.other{opacity:.45}
.day .dots{position:absolute;bottom:4px;left:0;right:0;display:flex;justify-content:center;gap:2px}
.day .dots i{position:static;width:6px;height:6px;margin:0;border-radius:50%}
.day .dots i.evd{background:none;border:1.5px solid var(--mute);width:4px;height:4px}
.day .cnt{position:absolute;top:2px;right:4px;font-size:10px;color:var(--mute);font-weight:700}
.day .cnt.late{color:var(--bad)}
.day.sel .cnt,.day.sel .dots i.evd{color:var(--onpri);border-color:var(--onpri)}
.mgrid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}
.mgrid .dn{font-size:12px;color:var(--mute);text-align:center;padding:2px 0}
.mcell{min-height:104px;border:1px solid var(--line);border-radius:8px;background:var(--card);padding:4px;cursor:pointer;display:flex;flex-direction:column;gap:2px;min-width:0;transition:border-color .15s}
.mcell:hover{border-color:var(--pri)}
.mcell.today{border-color:var(--pri);border-width:2px}
.mcell.sel{background:var(--soft);border-color:var(--pri)}
.mnum{font-size:12px;font-weight:700;color:var(--mute);padding:0 2px 2px}
.mcell.today .mnum{color:var(--pri)}
.mchip{font-size:11px;line-height:1.25;padding:2px 5px;border-radius:4px;border-left:3px solid var(--pri);background:var(--soft);color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}
.mchip:hover{filter:brightness(.95)}
.mchip.ev{border-left:0}
.mchip.ev i{font-style:normal;opacity:.85}
.mchip.done{opacity:.55;text-decoration:line-through}
.mchip.blk{opacity:.7;border-left-style:dashed}
.mchip.late{color:var(--bad);font-weight:600}
.mmore{font-size:11px;color:var(--mute);padding:0 4px}
.wdue>div{display:flex;flex-direction:column;gap:2px;min-width:0;padding:2px 0}
@media (max-width:640px){
  .mcell{min-height:64px;padding:2px;border-radius:6px}
  .mchip{font-size:9px;padding:1px 3px;border-left-width:2px}
  .mchip.ev i{display:none}
  .mgrid{gap:2px}
  .mgrid .dn{font-size:10px}
}

/* can't do now */
.blkbox{border:1px dashed var(--line);border-radius:10px;padding:10px;margin:4px 0 10px;background:var(--bg)}
.blkbox.on{border-style:solid;border-color:var(--warn);background:color-mix(in srgb,var(--warn) 7%,var(--card))}
.blkbox .seg{display:flex}
.chip.blkc{background:var(--warnbg);color:var(--warn);font-weight:600}
.chip.blkc.warn{background:color-mix(in srgb,var(--bad) 14%,var(--card));color:var(--bad)}
.item.blocked>.t{opacity:.75}
.item.blocked .chk{border-style:dashed}
.seg.mini button{white-space:nowrap}

/* in-class items */
.icbox{border:1px dashed var(--line);border-radius:10px;padding:8px 10px;margin:4px 0 10px}
.icbox.on{border-style:solid;border-color:var(--pri);background:var(--soft)}
.icbox .s{margin-top:4px}
.chip.ic{background:var(--soft);color:var(--pri);font-weight:600}
.chip.ic.warn{background:var(--warnbg);color:var(--warn)}

/* AI guide */
ol.steps{margin:4px 0 10px 18px;padding:0;line-height:1.6;font-size:14px}
ol.steps li{margin-bottom:6px}