*{box-sizing:border-box}
body{font-family:system-ui,sans-serif;margin:0;background:#fff;color:#1a1a1a;transition:background .2s,color .2s}
body.dark{background:#181818;color:#eee}
#app,#auth-screen{max-width:960px;margin:0 auto;padding:16px}
.auth-screen{display:flex;align-items:center;justify-content:center;min-height:100vh}
.auth-card{max-width:340px;width:100%;text-align:center}
.auth-card input{width:100%;margin-bottom:10px}
.muted{color:#888}
.small{font-size:12px}
body.dark input,body.dark textarea,body.dark select{background:#252525;color:#eee;border-color:#3a3a3a}
body.dark .item,body.dark .card,body.dark .cal-day{background:#222;border-color:#333}
body.dark button.btn{background:#252525;color:#eee;border-color:#3a3a3a}
body.dark button.btn:hover{background:#2f2f2f}
body.dark .tabs{border-color:#333}
body.dark .tab.active{color:#fff;border-color:#fff}
body.dark .cell{background:#2f2f2f}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.tabs{display:flex;gap:4px;border-bottom:1px solid #ddd;margin-bottom:20px;flex-wrap:wrap}
.tab{padding:10px 14px;cursor:pointer;border:none;background:none;font-size:14px;color:#666;border-bottom:2px solid transparent}
.tab.active{color:#1a1a1a;border-bottom-color:#333;font-weight:500}
.panel{display:none}
.panel.active{display:block}
input,textarea,select{font-family:inherit;font-size:14px;padding:8px;border:1px solid #ccc;border-radius:6px}
button.btn{padding:8px 14px;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;font-size:14px}
button.btn:hover{background:#f5f5f5}
button.btn.primary{background:#1a1a1a;color:#fff;border-color:#1a1a1a}
button.btn.small{padding:4px 8px;font-size:12px}
.row{display:flex;gap:8px;margin-bottom:14px;align-items:center;flex-wrap:wrap}
.item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid #eee;border-radius:8px;margin-bottom:6px;background:#fafafa}
.item.done{opacity:0.5;text-decoration:line-through}
.item .txt{flex:1}
.del{cursor:pointer;color:#999;font-size:12px;white-space:nowrap}
.del:hover{color:#c00}
.card{border:1px solid #eee;border-radius:10px;padding:16px;margin-bottom:12px;background:#fafafa}
.timer{font-size:56px;text-align:center;font-weight:600;margin:20px 0}
.habit-grid{display:grid;grid-template-columns:1fr repeat(7,32px) 60px;gap:4px;align-items:center;margin-bottom:6px}
.cell{width:28px;height:28px;border-radius:6px;background:#e8e8e8;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:11px}
.cell.on{background:#4caf80;color:#fff}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.cal-day{min-height:64px;border:1px solid #eee;border-radius:6px;padding:4px;font-size:12px;position:relative;cursor:pointer}
.cal-day.today{border-color:#4caf80;border-width:2px}
.cal-day.selected{background:#eef4ff}
body.dark .cal-day.selected{background:#1c2a3f}
.cal-day .num{color:#999}
.cal-event{font-size:10px;background:#dbe9ff;color:#134;border-radius:4px;padding:1px 4px;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer}
.cal-task{font-size:10px;background:#ffe6cc;color:#633;border-radius:4px;padding:1px 4px;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
h1{font-size:22px;font-weight:500}
h2{font-size:18px;font-weight:500;margin:0 0 12px}
small{color:#888}
.prio{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.prio-high{background:#e24b4a}
.prio-med{background:#efa227}
.prio-low{background:#63c299}
.tag{font-size:11px;background:#eee;border-radius:10px;padding:2px 8px;color:#555}
body.dark .tag{background:#333;color:#ccc}
.qtr{font-size:11px;background:#efe6ff;color:#534;border-radius:10px;padding:2px 8px;cursor:pointer;white-space:nowrap}
.qtr:hover{background:#e2d2ff}
.qtr.now{background:#4caf80;color:#fff;font-weight:500}
.qtr.empty{background:transparent;color:#bbb;border:1px dashed #ddd}
body.dark .qtr{background:#2e2340;color:#cbf}
body.dark .qtr.empty{background:transparent;color:#666;border-color:#444}
.qbar{height:6px;background:#e8e8e8;border-radius:4px;overflow:hidden}
.qbar-fill{height:100%;background:#4caf80;border-radius:4px;transition:width .3s}
body.dark .qbar{background:#333}
.plan-card{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border:1px solid #cfe0ff;background:#f3f7ff;border-radius:10px;padding:12px 16px;margin-bottom:10px}
.plan-card.urgent{border-color:#f0c000;background:#fff8e0}
body.dark .plan-card{background:#16243a;border-color:#2a3f5f}
body.dark .plan-card.urgent{background:#3a3016;border-color:#7a6420}
.est{font-size:11px;background:#eef4ff;color:#356;border-radius:10px;padding:2px 8px;cursor:pointer;white-space:nowrap}
.est:hover{background:#dbe9ff}
.est.over{background:#ffe0e0;color:#833}
.overrun{color:#c00;font-weight:500}
.ctx{font-size:11px;border-radius:10px;padding:2px 8px;cursor:pointer;white-space:nowrap;background:#fff0e0;color:#742}
.ctx.empty{background:transparent;color:#ccc}
.ctx:hover{background:#ffe3c8}
body.dark .ctx{background:#3a2a16;color:#fc9}
body.dark .ctx.empty{background:transparent;color:#555}
.ex-filters{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:8px 12px;margin-bottom:14px}
.ex-filter{display:flex;flex-direction:column;gap:2px}
.ex-filter span{font-size:11px;color:#888}
.ex-filter select{width:100%;font-size:12px;padding:5px 6px}
.ex-filter select.active{border-color:#4caf80;background:#f2fbf6;font-weight:500}
body.dark .ex-filter select.active{background:#16321f;border-color:#4caf80}
body.dark .ex-filter span{color:#777}
.ex{border:1px solid #eee;border-radius:8px;padding:10px 12px;margin-bottom:6px;background:#fafafa}
.ex-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.ex-links{display:flex;gap:10px;flex-shrink:0}
.ex-links a{font-size:12px;color:#36c;text-decoration:none;white-space:nowrap}
.ex-links a:hover{text-decoration:underline}
.ex-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.ex-tag{font-size:11px;background:#eee;color:#555;border-radius:10px;padding:2px 8px;white-space:nowrap}
.ex-details{margin-top:8px;padding-top:8px;border-top:1px solid #eee;columns:2;column-gap:24px}
body.dark .ex-details{border-color:#333}
@media(max-width:640px){.ex-details{columns:1}}
.ex-tag.diff-beginner{background:#dff0e3;color:#274}
.ex-tag.diff-novice{background:#e4f0d8;color:#374}
.ex-tag.diff-intermediate{background:#fdf0cf;color:#752}
.ex-tag.diff-advanced{background:#fbdfd0;color:#843}
.ex-tag.diff-expert,.ex-tag.diff-master,.ex-tag.diff-grand,.ex-tag.diff-legendary{background:#f8d6d6;color:#933}
body.dark .ex{background:#222;border-color:#333}
body.dark .ex-tag{background:#2c2c2c;color:#aaa}
body.dark .ex-links a{color:#7ad}
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.quad{border:1px solid #eee;border-radius:10px;padding:12px;background:#fafafa}
.quad-ui{border-color:#f3b0b0}
.quad-ni{border-color:#a8d8bd}
.quad-un{border-color:#f0d69a}
.quad-nn{border-color:#ddd}
.quad-head{margin-bottom:8px}
.quad-item{display:flex;align-items:center;gap:8px;padding:5px 0;font-size:13px;border-bottom:1px solid #f0f0f0}
.quad-item.done{opacity:.5;text-decoration:line-through}
.quad-item span{flex:1}
body.dark .quad{background:#222;border-color:#333}
body.dark .quad-item{border-color:#2a2a2a}
@media(max-width:640px){.matrix{grid-template-columns:1fr}}
.capture{display:flex;gap:8px;align-items:center;padding:10px 0 4px}
.capture input{flex:1}
.rep{font-size:11px;border-radius:10px;padding:2px 8px;cursor:pointer;white-space:nowrap;background:#e6f7ee;color:#264}
.rep.empty{background:transparent;color:#ccc}
.rep:hover{background:#d3f0e0}
body.dark .rep{background:#16321f;color:#8d9}
body.dark .rep.empty{background:transparent;color:#555}
body.dark .est.over{background:#3f1c1c;color:#f99}
body.dark .est{background:#1c2a3f;color:#9bf}
.due{font-size:11px;color:#999}
.due.overdue{color:#c00;font-weight:500}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin-bottom:16px}
.stat-card{background:#fafafa;border-radius:10px;padding:12px 14px}
body.dark .stat-card{background:#222}
.stat-num{font-size:22px;font-weight:600}
.stat-label{font-size:12px;color:#888}
.pin{cursor:pointer}