:root{--bg:#f1f5f9;--surface:#fff;--surface-alt:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--border:#cbd5e1;--primary:#0ea5e9;--primary-dark:#0284c7;--danger:#ef4444;--success:#16a34a;--accent:#0f766e;--overlay-bg:#0f172a80;--tag-chip-bg:#0ea5e91f;--active-bg:#0ea5e91f;--fab-shadow:0 6px 20px #0ea5e973;--shadow:0 4px 20px #0f172a1f;--sheet-shadow:0 -8px 30px #0f172a33;--radius:14px;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg:#0b1120;--surface:#131c30;--surface-alt:#1f2a41;--text:#e5eaf3;--text-muted:#8fa1bd;--border:#2a3550;--primary:#38bdf8;--primary-dark:#7dd3fc;--danger:#f87171;--success:#4ade80;--accent:#2dd4bf;--overlay-bg:#020617b3;--tag-chip-bg:#38bdf829;--active-bg:#38bdf829;--fab-shadow:0 6px 24px #38bdf859;--shadow:0 4px 20px #00000073;--sheet-shadow:0 -8px 30px #0009;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}input{font-family:inherit;font-size:16px}.app{min-height:100dvh;padding-bottom:calc(96px + var(--safe-bottom))}.app-main{transition:margin-left .25s}.topbar{z-index:20;padding:calc(12px + var(--safe-top)) 12px 12px;background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:8px;display:flex;position:sticky;top:0}.topbar-title{white-space:nowrap;text-overflow:ellipsis;flex:1;margin:0;font-size:20px;font-weight:700;overflow:hidden}.icon-btn{min-width:44px;min-height:44px;color:var(--text);background:0 0;border-radius:12px;justify-content:center;align-items:center;display:inline-flex}.icon-btn:active{background:var(--surface-alt)}.icon-btn.danger{color:var(--danger)}.sync-btn{position:relative}.sync-btn.offline{color:var(--text-muted)}.sync-btn.pending{color:var(--accent)}.sync-dot{background:var(--danger);border:2px solid var(--surface);border-radius:50%;width:10px;height:10px;position:absolute;top:8px;right:8px}.spin{animation:.9s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.searchbar{margin:12px;position:relative}.searchbar .search-icon{color:var(--text-muted);pointer-events:none;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.searchbar input{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);width:100%;min-height:48px;color:var(--text);padding:0 14px 0 42px}.searchbar input::placeholder{color:var(--text-muted)}.searchbar input:focus{outline:2px solid var(--primary);outline-offset:-1px}.toolbar{flex-wrap:wrap;align-items:center;gap:8px;padding:0 12px 8px;display:flex}.segmented{background:var(--surface-alt);border-radius:12px;padding:3px;display:inline-flex}.segmented .seg{min-height:38px;color:var(--text-muted);border-radius:9px;padding:0 14px;font-size:14px;font-weight:600}.segmented .seg.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.toolbar-error{color:var(--danger);width:100%;margin:0;font-size:13px}.content{padding:4px 12px}.task-section{margin-bottom:16px}.section-title{text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);align-items:center;gap:8px;margin:12px 4px 8px;font-size:15px;font-weight:700;display:flex}.count-badge{background:var(--surface-alt);color:var(--text-muted);border-radius:999px;padding:2px 8px;font-size:12px;font-weight:700}.section-empty{color:var(--text-muted);margin:0;padding:8px 4px;font-size:14px}.task-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.task-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);align-items:center;gap:10px;padding:10px 8px 10px 12px;display:flex}.task-item.completed{opacity:.75}.task-body{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.task-name{word-break:break-word;font-size:16px;line-height:1.35}.task-item.completed .task-name{text-decoration:line-through}.tag-chip{color:var(--primary-dark);background:var(--tag-chip-bg);text-overflow:ellipsis;white-space:nowrap;border-radius:999px;align-self:flex-start;max-width:100%;padding:2px 10px;font-size:12px;font-weight:600;overflow:hidden}.task-meta{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.task-dates{color:var(--text-muted);font-size:12px}.task-actions{flex-shrink:0;gap:2px;display:flex}.checkbox{background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:inline-flex}.checkbox-circle{border:2px solid var(--border);color:#fff;background:0 0;border-radius:50%;justify-content:center;align-items:center;width:26px;height:26px;transition:background .15s,border-color .15s;display:inline-flex}.checkbox.checked .checkbox-circle{background:var(--success);border-color:var(--success)}.completed-toggle{text-transform:uppercase;letter-spacing:.04em;width:100%;min-height:48px;color:var(--text-muted);align-items:center;gap:8px;padding:0 4px;font-size:15px;font-weight:700;display:flex}.chevron{transition:transform .2s}.chevron.open{transform:rotate(180deg)}.tag-group{margin-bottom:12px}.group-title{color:var(--accent);margin:8px 4px;font-size:14px;font-weight:700}.empty-state{text-align:center;color:var(--text-muted);flex-direction:column;align-items:center;gap:16px;padding:56px 24px;display:flex}.empty-state p{margin:0}.fab{right:20px;bottom:calc(24px + 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var(--border);width:32px;height:32px;box-shadow:var(--shadow);border-radius:8px;flex-shrink:0}.sidebar-nav{flex:1;padding:8px;overflow-y:auto}.sidebar-section-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin:12px 12px 6px;font-size:12px;font-weight:700}.sidebar-empty{color:var(--text-muted);margin:4px 12px;font-size:14px}.sidebar-item{text-align:left;width:100%;min-height:46px;color:var(--text);border-radius:12px;align-items:center;gap:12px;padding:8px 12px;font-size:15px;font-weight:500;display:flex}.sidebar-item .sidebar-item-label{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.sidebar-item.active{background:var(--active-bg);color:var(--primary-dark);font-weight:600}.sidebar-count{color:var(--text-muted);background:var(--surface-alt);border-radius:999px;padding:2px 8px;font-size:13px}.theme-toggle{background:var(--surface-alt);border-radius:12px;margin:0 8px;padding:3px;display:flex}.theme-option{min-height:40px;color:var(--text-muted);border-radius:9px;flex:1;justify-content:center;align-items:center;display:flex}.theme-option.active{background:var(--surface);color:var(--primary-dark);box-shadow:var(--shadow)}.sidebar-footer{border-top:1px solid var(--border);padding:8px}.sheet{background:var(--surface);padding:8px 20px calc(24px + var(--safe-bottom));z-index:50;box-shadow:var(--sheet-shadow);border-radius:20px 20px 0 0;animation:.25s slide-up;position:fixed;bottom:0;left:0;right:0}@keyframes slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-header{justify-content:space-between;align-items:center;display:flex}.sheet-header h3{margin:0;font-size:18px}.task-form{flex-direction:column;gap:14px;padding-top:12px;display:flex}.task-form label{color:var(--text-muted);flex-direction:column;gap:6px;font-size:14px;font-weight:600;display:flex}.task-form input{border:1px solid 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var(--border);width:64px;max-width:100%;height:64px;box-shadow:var(--shadow);border-radius:16px}.auth-card h1{margin:8px 0 4px;font-size:26px}.auth-subtitle{color:var(--text-muted);margin:0 0 20px}.auth-form{text-align:left;flex-direction:column;gap:14px;margin-bottom:12px;display:flex}.auth-form label{color:var(--text-muted);flex-direction:column;gap:6px;font-size:14px;font-weight:600;display:flex}.auth-form input{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);min-height:48px;color:var(--text);padding:0 14px}.auth-form input:focus{outline:2px solid var(--primary);outline-offset:-1px}.auth-form .btn{width:100%;margin-top:4px}.center-screen{min-height:100dvh;color:var(--text-muted);justify-content:center;align-items:center;display:flex}@media (width>=768px) and (width<=899px){.content,.searchbar,.toolbar{max-width:680px;margin-left:auto;margin-right:auto}}@media (width>=900px){.overlay{display:none}.sidebar{width:280px}.app.sidebar-open .app-main{margin-left:280px}.content,.searchbar,.toolbar{max-width:680px;margin-left:auto;margin-right:auto}}