:root{color-scheme:dark;--bg:#0a0c12;--glow-1:rgba(124,92,255,0.20);--glow-2:rgba(34,211,238,0.12);--surface:rgba(255,255,255,0.045);--surface-2:rgba(255,255,255,0.08);--surface-solid:#141824;--border:rgba(255,255,255,0.09);--border-strong:rgba(255,255,255,0.16);--text:#eef1f7;--text-dim:#a8b0c2;--muted:#6f7789;--ok:#34d399;--danger:#f87171;--c-violet:#8b5cf6;--c-cyan:#22d3ee;--c-emerald:#34d399;--c-amber:#fbbf24;--c-rose:#fb7185;--c-sky:#38bdf8;--radius:18px;--shadow:0 12px 40px rgba(0,0,0,0.45)}@media (prefers-color-scheme:light){:root:not([data-theme=dark]){color-scheme:light;--bg:#f4f6fb;--glow-1:rgba(124,92,255,0.14);--glow-2:rgba(34,211,238,0.10);--surface:#ffffff;--surface-2:#f6f7fc;--surface-solid:#ffffff;--border:rgba(15,23,42,0.09);--border-strong:rgba(15,23,42,0.16);--text:#0f172a;--text-dim:#4a5568;--muted:#7b8496;--shadow:0 8px 28px rgba(15,23,42,0.08)}}:root[data-theme=light]{color-scheme:light;--bg:#f4f6fb;--glow-1:rgba(124,92,255,0.14);--glow-2:rgba(34,211,238,0.10);--surface:#ffffff;--surface-2:#f6f7fc;--surface-solid:#ffffff;--border:rgba(15,23,42,0.09);--border-strong:rgba(15,23,42,0.16);--text:#0f172a;--text-dim:#4a5568;--muted:#7b8496;--shadow:0 8px 28px rgba(15,23,42,0.08)}*{box-sizing:border-box}body,html{margin:0;padding:0}body{min-height:100vh;background:radial-gradient(900px 500px at 12% -8%,var(--glow-1),transparent 62%),radial-gradient(760px 460px at 92% 4%,var(--glow-2),transparent 60%),var(--bg);background-attachment:fixed;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif;-webkit-font-smoothing:antialiased;transition:background-color .3s ease,color .3s ease}button{cursor:pointer;border:none;background:none;color:inherit}button,input{font-family:inherit}::selection{background:rgba(139,92,246,.35)}.app{max-width:960px;margin:0 auto;padding:28px 20px 80px}@media (max-width:640px){.app{padding:16px 14px 64px}}.topbar{justify-content:space-between;gap:12px;margin-bottom:26px;flex-wrap:wrap}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-size:17px;font-weight:700;letter-spacing:.5px}.brand-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--c-violet),var(--c-cyan));box-shadow:0 0 14px rgba(139,92,246,.8)}.top-actions{display:flex;align-items:center;gap:8px}.icon-btn{width:36px;height:36px;display:grid;place-items:center;border-radius:11px;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);font-size:15px;transition:all .18s ease}.icon-btn:hover{background:var(--surface-2);color:var(--text);border-color:var(--border-strong)}.icon-btn:active{transform:scale(.94)}.icon-btn.active{color:#fff;background:linear-gradient(135deg,var(--c-violet),#6d5cff);border-color:transparent;box-shadow:0 6px 18px rgba(139,92,246,.35)}.toolbar{justify-content:space-between;gap:10px;margin-bottom:16px;flex-wrap:wrap}.date-nav,.toolbar{display:flex;align-items:center}.date-nav{gap:6px;padding:5px;border-radius:14px;border:1px solid var(--border);background:var(--surface)}.date-btn{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:var(--text-dim);transition:all .16s ease}.date-btn:hover:not(:disabled){background:var(--surface-2);color:var(--text)}.date-btn:disabled{opacity:.3;cursor:not-allowed}.date-label{min-width:132px;text-align:center;font-size:13.5px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;padding:0 4px}.date-label small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);margin-top:1px}.today-btn{font-size:12px;padding:6px 11px;border-radius:9px;background:var(--surface-2);color:var(--text-dim);border:1px solid var(--border);transition:all .16s ease}.today-btn:hover{color:var(--text)}.hero{display:flex;align-items:center;gap:26px;padding:26px;border-radius:24px;border:1px solid var(--border);background:linear-gradient(160deg,var(--surface-2),var(--surface));box-shadow:var(--shadow);margin-bottom:26px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;inset:0;background:radial-gradient(420px 180px at 88% -30%,rgba(139,92,246,.2),transparent 70%);pointer-events:none}.hero-meta{position:relative;z-index:1;flex:1 1;min-width:0}.hero-title{font-size:13px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase;margin:0 0 8px}.hero-big{font-size:30px;font-weight:700;margin:0;line-height:1.2;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.hero-total{font-size:.58em;font-weight:600;color:var(--muted);letter-spacing:0}.hero-sub{margin:10px 0 0;font-size:13.5px;color:var(--text-dim);display:flex;flex-wrap:wrap;gap:8px}.hero-sub,.pill{align-items:center}.pill{display:inline-flex;gap:5px;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(251,191,36,.12);color:var(--c-amber);border:1px solid rgba(251,191,36,.22)}.pill.cool{background:rgba(56,189,248,.1);color:var(--c-sky);border-color:rgba(56,189,248,.22)}.ring-wrap{position:relative;width:108px;height:108px;flex-shrink:0;z-index:1}.ring-svg{transform:rotate(-90deg);display:block}.ring-track{fill:none;stroke:var(--border);stroke-width:9}.ring-bar{fill:none;stroke:url(#ringGrad);stroke-width:9;stroke-linecap:round;transition:stroke-dashoffset .5s cubic-bezier(.22,1,.36,1)}.ring-text{position:absolute;inset:0;display:grid;place-items:center;font-size:22px;font-weight:700;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ring-text span{font-size:11px;font-weight:600;color:var(--muted);margin-left:1px}@media (max-width:560px){.hero{padding:20px;gap:16px}.hero-big{font-size:24px}.ring-svg,.ring-wrap{width:88px;height:88px}.ring-text{font-size:18px}}.section{margin-bottom:26px}.section-head{justify-content:space-between;margin-bottom:13px;gap:12px}.section-head,.section-title{display:flex;align-items:center}.section-title{font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--muted);text-transform:uppercase;margin:0;gap:8px}.count-badge{font-size:11px;padding:2px 7px;border-radius:999px;background:var(--surface-2);color:var(--text-dim);letter-spacing:0}.link-btn{font-size:12.5px;color:var(--text-dim);padding:5px 10px;border-radius:9px;border:1px dashed var(--border-strong);transition:all .16s ease}.link-btn:hover{color:var(--text);border-style:solid;background:var(--surface-2)}.habit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(162px,1fr));grid-gap:12px;gap:12px}@media (max-width:480px){.habit-grid{grid-template-columns:repeat(2,1fr);gap:10px}}.habit-card{position:relative;display:flex;align-items:center;gap:11px;padding:15px 14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);text-align:left;transition:transform .16s cubic-bezier(.34,1.56,.64,1),border-color .2s ease,background .2s ease,box-shadow .2s ease;overflow:hidden;min-height:66px}.habit-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);opacity:.55;transition:opacity .2s ease,width .2s ease}.habit-card:hover{transform:translateY(-2px);border-color:var(--border-strong);background:var(--surface-2)}.habit-card:active{transform:scale(.975)}.habit-emoji{width:34px;height:34px;flex-shrink:0;display:grid;place-items:center;border-radius:11px;font-size:17px;background:var(--surface-2);border:1px solid var(--border);transition:all .2s ease}.habit-name{font-size:14px;font-weight:550;line-height:1.35;min-width:0;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;word-break:break-word}.habit-card.done{background:color-mix(in srgb,var(--accent) 14%,var(--surface));border-color:color-mix(in srgb,var(--accent) 42%,transparent)}.habit-card.done:before{opacity:0}.habit-card.done .habit-name{color:var(--text-dim);text-decoration:line-through;-webkit-text-decoration-color:color-mix(in srgb,var(--accent) 70%,transparent);text-decoration-color:color-mix(in srgb,var(--accent) 70%,transparent);text-decoration-thickness:1.5px}.habit-card.done .habit-emoji{background:color-mix(in srgb,var(--accent) 26%,transparent);border-color:color-mix(in srgb,var(--accent) 50%,transparent)}.check-mark{position:absolute;top:8px;right:8px;width:18px;height:18px;border-radius:50%;background:var(--accent);display:grid;place-items:center;color:#fff;font-size:11px;font-weight:800;animation:pop .32s cubic-bezier(.34,1.56,.64,1)}@keyframes pop{0%{transform:scale(0);opacity:0}70%{transform:scale(1.18)}to{transform:scale(1);opacity:1}}.editing .habit-card:hover{border-color:var(--c-violet)}.edit-dot{position:absolute;top:7px;right:7px;width:20px;height:20px;border-radius:7px;display:grid;place-items:center;font-size:12px;background:var(--surface-2);border:1px solid var(--border)}.edit-dot,.empty{color:var(--muted)}.empty{padding:34px 20px;text-align:center;border-radius:var(--radius);border:1px dashed var(--border-strong);font-size:13.5px;line-height:1.7}.empty strong{display:block;color:var(--text-dim);font-size:14px;margin-bottom:4px}.extra-box{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);padding:8px}.extra-input-row{display:flex;align-items:center;gap:8px}.extra-input{flex:1 1;min-width:0;background:transparent;border:none;outline:none;color:var(--text);font-size:14px;padding:11px 12px}.extra-input::placeholder{color:var(--muted)}.extra-add{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--border);color:var(--text-dim);font-size:17px;transition:all .16s ease;flex-shrink:0}.extra-add:hover{background:linear-gradient(135deg,var(--c-violet),#6d5cff);color:#fff;border-color:transparent}.extra-list{list-style:none;margin:4px 0 0;padding:0}.extra-item{display:flex;align-items:center;gap:10px;padding:11px 10px;border-radius:12px;transition:background .16s ease;border-top:1px solid var(--border)}.extra-item:first-child{border-top:none}.extra-item:hover{background:var(--surface-2)}.extra-tick{width:20px;height:20px;border-radius:6px;border:1.5px solid var(--border-strong);display:grid;place-items:center;flex-shrink:0;font-size:11px;color:transparent;transition:all .16s ease}.extra-item.done .extra-tick{background:var(--c-emerald);border-color:var(--c-emerald);color:#04120c}.extra-text{flex:1 1;font-size:14px;line-height:1.4;word-break:break-word}.extra-item.done .extra-text{color:var(--muted);text-decoration:line-through}.extra-del{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;color:var(--muted);font-size:15px;opacity:0;transition:all .16s ease}.extra-item:hover .extra-del{opacity:1}.extra-del:hover{color:var(--danger);background:rgba(248,113,113,.12)}@media (max-width:640px){.extra-del{opacity:.6}}.heat-card{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);padding:20px 18px;overflow-x:auto;display:flex;flex-direction:column;align-items:center}.heat-grid{display:grid;grid-template-rows:repeat(7,15px);grid-auto-flow:column;grid-auto-columns:15px;grid-gap:5px;gap:5px;width:max-content}.heat-cell{width:15px;height:15px;border-radius:4px;background:var(--surface-2);border:1px solid transparent;transition:transform .12s ease}.heat-cell:hover{transform:scale(1.25)}.heat-cell[data-level="1"]{background:color-mix(in srgb,var(--c-emerald) 26%,var(--surface))}.heat-cell[data-level="2"]{background:color-mix(in srgb,var(--c-emerald) 48%,var(--surface))}.heat-cell[data-level="3"]{background:color-mix(in srgb,var(--c-emerald) 72%,var(--surface))}.heat-cell[data-level="4"]{background:var(--c-emerald)}.heat-cell.today{border-color:var(--text)}.heat-legend{display:flex;align-items:center;gap:6px;margin-top:14px;font-size:11px;color:var(--muted)}.heat-legend .heat-cell{cursor:default}.heat-legend .heat-cell:hover{transform:none}.modal-mask{position:fixed;inset:0;background:rgba(4,6,12,.62);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:grid;place-items:center;padding:18px;z-index:100;animation:fade .18s ease}@keyframes fade{0%{opacity:0}to{opacity:1}}.modal{width:100%;max-width:400px;border-radius:22px;border:1px solid var(--border-strong);background:var(--surface-solid);box-shadow:0 24px 70px rgba(0,0,0,.5);padding:22px;animation:rise .24s cubic-bezier(.22,1,.36,1)}@keyframes rise{0%{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.modal h3{margin:0 0 18px;font-size:16px;font-weight:700}.field{margin-bottom:16px}.field label{display:block;font-size:11.5px;font-weight:600;letter-spacing:.6px;color:var(--muted);margin-bottom:7px;text-transform:uppercase}.text-input{width:100%;padding:11px 13px;border-radius:11px;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text);font-size:14px;outline:none;transition:border-color .16s ease}.text-input:focus{border-color:var(--c-violet)}.color-row,.emoji-row{display:flex;flex-wrap:wrap;gap:7px}.emoji-pick{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:17px;border:1px solid var(--border);background:var(--surface-2);transition:all .14s ease}.emoji-pick:hover{border-color:var(--border-strong);transform:translateY(-1px)}.emoji-pick.sel{border-color:var(--c-violet);background:rgba(139,92,246,.16);box-shadow:0 0 0 1px var(--c-violet) inset}.color-pick{width:26px;height:26px;border-radius:50%;border:2px solid transparent;transition:all .14s ease;position:relative}.color-pick.sel{border-color:var(--text);transform:scale(1.1)}.modal-actions{display:flex;gap:9px;margin-top:20px}.btn{flex:1 1;padding:11px;border-radius:11px;font-size:13.5px;font-weight:600;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text-dim);transition:all .16s ease}.btn:hover{color:var(--text)}.btn.primary{background:linear-gradient(135deg,var(--c-violet),#6d5cff);border-color:transparent;color:#fff;box-shadow:0 6px 20px rgba(139,92,246,.3)}.btn.primary:hover{filter:brightness(1.08)}.btn.primary:disabled{opacity:.5;cursor:not-allowed;filter:none}.btn.danger{color:var(--danger);border-color:rgba(248,113,113,.3);background:rgba(248,113,113,.08);flex:0 0 auto;padding:11px 16px}.btn.danger:hover{background:rgba(248,113,113,.16)}.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);padding:10px 18px;border-radius:999px;background:var(--surface-solid);border:1px solid var(--border-strong);box-shadow:var(--shadow);font-size:13px;z-index:200;animation:toastIn .24s ease}.toast.error{color:var(--danger);border-color:rgba(248,113,113,.35)}@keyframes toastIn{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}.skeleton{border-radius:var(--radius);background:linear-gradient(100deg,var(--surface) 30%,var(--surface-2) 50%,var(--surface) 70%);background-size:220% 100%;animation:shimmer 1.3s linear infinite}@keyframes shimmer{0%{background-position:120% 0}to{background-position:-80% 0}}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:100%;max-width:360px;padding:32px 26px;border-radius:24px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);text-align:center}.login-emoji{font-size:38px;margin-bottom:14px;display:block}.login-card h1{font-size:19px;margin:0 0 8px;font-weight:700}.login-card p{font-size:13px;color:var(--muted);margin:0 0 22px;line-height:1.6}.login-card .text-input{text-align:center;letter-spacing:2px;margin-bottom:12px}.login-err{color:var(--danger);font-size:12.5px;min-height:18px;margin-bottom:6px}.todo-empty{padding:16px 12px;margin-top:4px;border-top:1px solid var(--border);color:var(--muted);font-size:13px;text-align:center}.history{margin-top:12px}.history-toggle{display:flex;align-items:center;gap:8px;width:100%;padding:11px 14px;border-radius:13px;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);font-size:13px;font-weight:600;transition:background .16s ease,border-color .16s ease}.history-toggle:hover{background:var(--surface-2);border-color:var(--border-strong)}.history-dot{width:18px;height:18px;border-radius:6px;display:grid;place-items:center;font-size:10px;background:color-mix(in srgb,var(--c-emerald) 22%,transparent);color:var(--c-emerald)}.history-count{margin-left:auto;padding:2px 7px;border-radius:999px;background:var(--surface-2);font-weight:500}.history-chev,.history-count{font-size:11px;color:var(--muted)}.history-chev{transition:transform .2s ease}.history-chev.open{transform:rotate(180deg)}.history-body{margin-top:8px;padding:4px 10px 10px;border-radius:13px;border:1px solid var(--border);background:var(--surface)}.history-day{padding-top:8px}.history-day+.history-day{margin-top:6px;border-top:1px solid var(--border)}.history-day-label{display:flex;align-items:center;justify-content:space-between;padding:4px 4px 8px;font-size:11px;font-weight:700;letter-spacing:.6px;color:var(--muted)}.history-day-label span{font-weight:500;letter-spacing:0}.history-item{display:flex;align-items:center;gap:8px;padding:7px 4px;border-radius:8px;font-size:13px;transition:background .14s ease}.history-item:hover{background:var(--surface-2)}.history-text{flex:1 1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-dim);text-decoration:line-through;-webkit-text-decoration-color:color-mix(in srgb,var(--muted) 60%,transparent);text-decoration-color:color-mix(in srgb,var(--muted) 60%,transparent)}.history-time{flex-shrink:0;font-size:11px;color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.history-undo{flex-shrink:0;font-size:11.5px;color:var(--c-sky);padding:3px 8px;border-radius:7px;border:1px solid transparent;opacity:0;transition:all .16s ease}.history-item:hover .history-undo{opacity:1}.history-undo:hover{background:rgba(56,189,248,.12);border-color:rgba(56,189,248,.25)}.history-del{flex-shrink:0;width:20px;height:20px;display:grid;place-items:center;border-radius:6px;color:var(--muted);font-size:14px;opacity:0;transition:all .16s ease}.history-item:hover .history-del{opacity:1}.history-del:hover{color:var(--danger);background:rgba(248,113,113,.12)}.history-clear{width:100%;margin-top:10px;padding:9px;border-radius:9px;font-size:12px;color:var(--muted);border:1px dashed var(--border-strong);transition:all .16s ease}.history-clear:hover{color:var(--danger);border-color:rgba(248,113,113,.35)}@media (hover:none),(max-width:640px){.history-del,.history-undo{opacity:.65}}