:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--danger:#d1345b;--danger-bg:#d1345b1a;--sans:system-ui, "Segoe UI", Roboto, sans-serif;font:16px/145% var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--danger:#f0648a;--danger-bg:#f0648a26}}*{box-sizing:border-box}body{margin:0}h1,h2{color:var(--text-h);font-weight:600}button{font:inherit;cursor:pointer}input{font:inherit}.app{max-width:520px;margin:0 auto;padding:24px 20px 64px}.app-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.app-header h1{margin:0;font-size:24px}button{border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:6px;padding:8px 14px}button:hover{border-color:var(--accent-border)}button[type=submit]{color:var(--accent);border-color:var(--accent-border);background:var(--accent-bg)}.btn-secondary{padding:6px 12px;font-size:14px}button.danger{color:var(--danger)}button.danger:hover{border-color:var(--danger)}.link-btn{color:var(--accent);background:0 0;border:none;padding:0;text-decoration:underline}input[type=text],input[type=email],input[type=password],input[type=date]{border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:6px;padding:8px 10px}input:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.auth-card{max-width:340px;margin:40px auto}.auth-card h2{text-align:center;margin-bottom:20px;font-size:20px}.auth-card form{flex-direction:column;gap:14px;display:flex}.auth-card label{flex-direction:column;gap:4px;font-size:14px;display:flex}.switch-mode{text-align:center;margin-top:16px;font-size:14px}.form-message{margin:0;font-size:14px}.form-message.error{color:var(--danger)}.form-message.info{color:var(--accent)}.add-task-form{gap:8px;margin-bottom:20px;display:flex}.add-task-form input[type=text]{flex:1}.empty-state{color:var(--text);text-align:center;padding:32px 0}.task-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.task-item{border:1px solid var(--border);border-radius:8px;align-items:center;gap:12px;padding:10px 12px;display:flex}.task-check{flex:1;align-items:center;gap:10px;min-width:0;display:flex}.task-check input[type=checkbox]{flex-shrink:0;width:16px;height:16px}.task-title{overflow-wrap:anywhere}.task-item.complete .task-title{color:var(--text);text-decoration:line-through}.task-due{color:var(--text);white-space:nowrap;font-size:13px}.task-actions{flex-shrink:0;gap:6px;display:flex}.task-actions button{padding:5px 10px;font-size:13px}.edit-task-form{gap:8px;width:100%;display:flex}.edit-task-form input[type=text]{flex:1}