:root{color-scheme:light;font-family:Avenir Next,Segoe UI,sans-serif;--bg: #f1faee;--card: #ffffff;--ink: #1d3557;--muted: #5c677d;--line: #d6e3f0;--brand: #1d3557;--brand-2: #457b9d;--danger: #b02a37}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top right,#a8dadc,var(--bg));color:var(--ink)}button,input,textarea,select{font:inherit}.app-shell{max-width:760px;margin:0 auto;min-height:100dvh;padding:16px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px}.topbar h1{margin:8px 0;font-size:1.4rem}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0 16px}button{border:none;border-radius:10px;background:var(--brand);color:#fff;padding:10px 12px}button.active{background:var(--brand-2)}button.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}button.warn{background:var(--danger)}.card,.task-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px}.card{display:grid;gap:12px}.list{display:grid;gap:10px}.task-item{text-align:left;display:grid;gap:6px}.task-header{display:flex;justify-content:space-between;align-items:center;gap:8px}.task-meta{color:var(--muted);display:grid;gap:2px;font-size:.9rem}label{display:grid;gap:6px;font-weight:600}input,textarea,select{border:1px solid var(--line);border-radius:10px;padding:10px;background:#fff}.actions{display:flex;flex-wrap:wrap;gap:8px}.muted{color:var(--muted)}.error{color:var(--danger);font-weight:600}.overdue{color:var(--danger);font-size:.8rem;font-weight:700}@media (min-width: 720px){.app-shell{padding:24px}}