:root,:root[data-theme=light],:root:not([data-theme]){--bg:#f4f6fb;--card-bg:#fff;--text:#4b5563;--text-h:#111827;--border:#e5e7eb;--accent:#7c3aed;--accent-bg:#7c3aed14;--accent-border:#7c3aed59;--shadow:#00000014 0 10px 20px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace}:root[data-theme=dark]{--bg:#0f172a;--card-bg:#1e293b;--text:#cbd5f5;--text-h:#f8fafc;--border:#334155;--accent:#a855f7;--accent-bg:#a855f726;--accent-border:#a855f759;--shadow:#00000080 0 12px 24px -6px, #00000040 0 6px 8px -2px}body{font-family:var(--sans);background:linear-gradient(-45deg,#6d28d9,#9333ea,#3b82f6,#06b6d4) 0 0/400% 400%;min-height:100vh;margin:0;animation:12s infinite gradientMove}#root{flex-direction:column;width:100%;min-height:100vh;display:flex}@keyframes gradientMove{0%{background-position:0%}50%{background-position:100%}to{background-position:0%}}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{margin:30px 0;font-size:48px}h2{font-size:24px}p{margin:0}.dashboard{flex-direction:column;gap:30px;width:100%;max-width:1200px;margin:auto;padding:40px;display:flex}.stats{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;display:grid}.stat-card{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;padding:20px;transition:all .25s}.stat-card:hover{transform:translateY(-4px)}.stat-card h3{margin-bottom:8px;font-size:14px}.stat-card p{color:var(--text-h);font-size:28px;font-weight:600}.task-input{gap:10px;display:flex}.task-input input{border:1px solid var(--border);background:var(--card-bg);color:var(--text-h);border-radius:8px;flex:1;padding:12px;font-size:16px}.task-input button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:12px 18px;font-weight:500;transition:all .2s}.task-input button:hover{opacity:.9}.task-filters{flex-direction:column;gap:10px;margin-top:10px;display:flex}.task-filters input{border:1px solid var(--border);background:var(--card-bg);color:var(--text-h);border-radius:8px;padding:10px}.filter-buttons{gap:8px;display:flex}.filter-buttons button{border:1px solid var(--border);cursor:pointer;background:#fffc;border-radius:999px;padding:8px 12px;font-size:13px}.filter-buttons button:hover{background:var(--accent-bg);border-color:var(--accent-border)}.task-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px;display:grid}.task-card{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow);background:#ffffff26;border:1px solid #ffffff40;border-radius:16px;padding:20px;transition:all .25s}.task-edit-input{border:1px solid var(--border);border-radius:8px;width:100%;margin-bottom:10px;padding:8px}.task-card:hover{transform:translateY(-6px)scale(1.02)}.task-card h3{margin-bottom:12px}.task-actions{gap:10px;display:flex}.task-actions button{cursor:pointer;border:none;border-radius:6px;padding:6px 10px;font-size:13px}.progress-bar{background:#ddd;border-radius:10px;width:100%;height:10px;overflow:hidden}.progress-bar-fill{background:var(--accent);height:100%;transition:width .3s}.stats-chart-card{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;padding:20px}.view-toggle{border:1px solid var(--border);background:#ffffffb3;border-radius:999px;margin-bottom:10px;display:inline-flex;overflow:hidden}.view-toggle button{cursor:pointer;background:0 0;border:none;padding:6px 14px;font-size:13px}.view-toggle-active{background:var(--accent-bg);color:var(--text-h)}.calendar-wrapper{background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;padding:20px}.calendar-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.calendar-header button{background:var(--accent-bg);cursor:pointer;border:none;border-radius:999px;width:28px;height:28px}.calendar-grid{grid-template-columns:repeat(7,1fr);gap:6px;display:grid}.calendar-day-header{text-align:center;opacity:.7;font-size:11px}.calendar-cell{border:1px solid var(--border);background:#fff9;border-radius:8px;min-height:70px;padding:4px}.calendar-cell.empty{background:0 0;border:none}.calendar-cell-date{margin-bottom:4px;font-size:11px;font-weight:600}.calendar-cell-tasks{flex-direction:column;gap:2px;display:flex}.calendar-task{background:var(--accent-bg);color:var(--text-h);border-radius:999px;padding:2px 6px;font-size:10px}.calendar-task-completed{opacity:.6;text-decoration:line-through}.btn-toggle{color:#fff;background:#22c55e}.btn-delete{color:#fff;background:#ef4444}.btn-edit{color:#fff;background:#3b82f6}.completed{opacity:.6;text-decoration:line-through}code{font-family:var(--mono);color:#fff;background:#111;border-radius:4px;padding:4px 8px;font-size:15px}