:root{--bg: #f5f6fb;--surface: #ffffff;--text: #1c1f2e;--muted: #6b7088;--border: #e3e5ef;--primary: #4f46e5;--primary-hover: #4338ca;--primary-soft: #eef0ff;--danger: #dc2626;--danger-soft: #fdecec;--warn: #d97706;--warn-soft: #fff4e0;--ok: #16a34a;--ok-soft: #e7f7ec;--info: #2563eb;--info-soft: #e8f0ff;--radius: 14px;--shadow: 0 1px 2px rgba(20, 24, 50, .05), 0 4px 16px rgba(20, 24, 50, .05);color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #11131c;--surface: #1a1d29;--text: #e8e9f1;--muted: #9a9fb8;--border: #2b2f40;--primary: #7c73ff;--primary-hover: #918aff;--primary-soft: #262650;--danger: #f26d6d;--danger-soft: #3a1f24;--warn: #f0a742;--warn-soft: #3a2c17;--ok: #4ccf7b;--ok-soft: #173225;--info: #6b9bff;--info-soft: #1b2847;--shadow: 0 1px 2px rgba(0, 0, 0, .3);color-scheme:dark}}*,*:before,*:after{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3{line-height:1.25;margin:0}a{color:var(--primary)}code{background:var(--primary-soft);padding:1px 6px;border-radius:6px;font-size:.9em}.container{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}main.container{padding-top:24px;padding-bottom:48px}.muted{color:var(--muted);margin:0}.center{text-align:center}.page-loading{padding:60px;text-align:center;color:var(--muted)}.topbar{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--text)}.brand-logo{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--primary);color:#fff;font-size:1rem}.topbar-user{display:flex;align-items:center;gap:10px;min-width:0}.avatar{width:32px;height:32px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-weight:700;flex:none}.user-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid transparent;border-radius:10px;padding:10px 16px;font:inherit;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s,color .15s,transform .05s}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn:focus-visible,.tab:focus-visible,.check:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 40%,transparent);outline-offset:2px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn-ghost:hover{background:var(--bg)}.btn-soft{background:var(--primary-soft);color:var(--primary)}.btn-soft:hover{filter:brightness(.97)}.btn-danger-ghost{background:transparent;color:var(--danger);border-color:transparent}.btn-danger-ghost:hover{background:var(--danger-soft)}.btn-sm{padding:6px 12px;font-size:.875rem;border-radius:8px}.btn-block{width:100%}.icon-btn{background:none;border:0;font-size:1.6rem;line-height:1;cursor:pointer;color:var(--muted);padding:4px 8px;border-radius:8px}.icon-btn:hover{background:var(--bg);color:var(--text)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.alert{background:var(--danger-soft);color:var(--danger);border-radius:10px;padding:10px 14px;margin:0 0 14px;font-weight:500}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;flex:1;min-width:0}.field>span{font-size:.875rem;font-weight:600;color:var(--muted)}input,select,textarea{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 12px;width:100%}textarea{resize:vertical}.form-row{display:flex;gap:12px;flex-wrap:wrap}.form-row .field{min-width:140px}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}.auth-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;min-height:calc(100vh - 160px)}.auth-intro h1{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:14px}.auth-intro p{color:var(--muted);font-size:1.1rem;margin:0 0 18px}.auth-points{list-style:none;padding:0;margin:0;display:grid;gap:10px}.auth-points li:before{content:"✓";display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--ok-soft);color:var(--ok);font-weight:700;margin-right:10px;font-size:.8rem}.auth-card{padding:28px}.auth-card h2{margin-bottom:18px}.auth-switch{text-align:center;margin:16px 0 0;color:var(--muted)}.demo-hint{text-align:center;margin:10px 0 0;font-size:.85rem;color:var(--muted)}.dash-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;flex-wrap:wrap}.dash-head h1{font-size:1.6rem}.stats{display:grid;grid-template-columns:minmax(260px,1fr) 2fr;gap:16px;margin-bottom:22px}.progress-card{padding:18px 20px;display:flex;flex-direction:column;justify-content:center;gap:10px}.progress-head{display:flex;justify-content:space-between;align-items:baseline}.progress-head h2{font-size:1rem;color:var(--muted)}.progress-value{font-size:1.8rem;color:var(--primary)}.progress{height:12px;background:var(--primary-soft);border-radius:999px;overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--ok));border-radius:999px;transition:width .4s ease}.counters{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.counter{padding:14px;display:flex;flex-direction:column;gap:2px;border-top:4px solid var(--border)}.counter-value{font-size:1.6rem;font-weight:800}.counter-label{color:var(--muted);font-size:.85rem;font-weight:600}.c-todo{border-top-color:var(--info)}.c-progress{border-top-color:var(--warn)}.c-done{border-top-color:var(--ok)}.c-overdue{border-top-color:var(--danger)}.c-overdue.is-alert{background:var(--danger-soft)}.c-overdue.is-alert .counter-value{color:var(--danger)}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}.tabs{display:flex;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:4px;overflow-x:auto;max-width:100%}.tab{background:none;border:0;padding:8px 14px;border-radius:9px;font:inherit;font-weight:600;color:var(--muted);cursor:pointer;white-space:nowrap;display:flex;align-items:center;gap:6px}.tab:hover{color:var(--text)}.tab.active{background:var(--primary);color:#fff}.tab-count{background:#7f7fa02e;border-radius:999px;padding:0 7px;font-size:.75rem}.tab.active .tab-count{background:#ffffff40}.toolbar-controls{display:flex;gap:10px;flex:1;justify-content:flex-end;min-width:260px}.search{max-width:340px}.sort{max-width:240px}.task-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}.task{padding:16px;display:flex;flex-direction:column;gap:12px;border-left:4px solid var(--border);transition:box-shadow .15s}.task:hover{box-shadow:0 6px 24px #14183214}.task.status-todo{border-left-color:var(--info)}.task.status-in_progress{border-left-color:var(--warn)}.task.status-done{border-left-color:var(--ok)}.task.overdue{background:color-mix(in srgb,var(--danger-soft) 55%,var(--surface));border-color:color-mix(in srgb,var(--danger) 35%,var(--border));border-left-color:var(--danger)}.task-top{display:flex;gap:12px;align-items:flex-start}.check{flex:none;width:24px;height:24px;border-radius:50%;border:2px solid var(--border);background:var(--surface);cursor:pointer;color:#fff;font-weight:800;font-size:.8rem;display:grid;place-items:center;margin-top:2px}.check:hover{border-color:var(--ok)}.check.checked{background:var(--ok);border-color:var(--ok)}.task-main{min-width:0}.task-title{font-size:1.05rem;word-break:break-word}.status-done .task-title{text-decoration:line-through;color:var(--muted)}.task-desc{margin:4px 0 0;color:var(--muted);font-size:.92rem;word-break:break-word;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.task-meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.badge{font-size:.75rem;font-weight:700;border-radius:999px;padding:3px 10px}.prio-high{background:var(--danger-soft);color:var(--danger)}.prio-medium{background:var(--warn-soft);color:var(--warn)}.prio-low{background:var(--ok-soft);color:var(--ok)}.st-todo{background:var(--info-soft);color:var(--info)}.st-in_progress{background:var(--warn-soft);color:var(--warn)}.st-done{background:var(--ok-soft);color:var(--ok)}.deadline{font-size:.82rem;color:var(--muted);font-weight:500}.deadline.is-overdue{color:var(--danger);font-weight:700}.task-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto;border-top:1px solid var(--border);padding-top:10px}.empty{padding:40px 20px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}.empty-title{margin:0;color:var(--muted);font-size:1.05rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c1980;display:grid;place-items:center;padding:16px;z-index:50;animation:fade .15s ease}.modal{width:100%;max-width:560px;max-height:calc(100vh - 32px);overflow-y:auto;padding:22px;animation:pop .18s ease}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-head h2{font-size:1.25rem}@keyframes fade{0%{opacity:0}}@keyframes pop{0%{opacity:0;transform:translateY(8px) scale(.98)}}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--text);color:var(--bg);padding:10px 18px;border-radius:10px;font-weight:600;box-shadow:var(--shadow);z-index:60}@media(max-width:900px){.stats{grid-template-columns:1fr}.auth-wrap{grid-template-columns:1fr;gap:24px;min-height:auto;padding-top:12px}}@media(max-width:640px){.counters{grid-template-columns:repeat(3,1fr)}.counter{padding:10px}.counter-value{font-size:1.3rem}.toolbar-controls{flex-direction:column;min-width:0;width:100%}.search,.sort{max-width:none}.tabs,.dash-head .btn{width:100%}.user-name{display:none}.task-grid{grid-template-columns:1fr}.form-actions{flex-direction:column-reverse}.form-actions .btn{width:100%}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}