:root{color-scheme:light;--bg:#faf9f7;--surface:#ffffff;--text:#1a1a1a;--muted:#666;--border:#e5e2dc;--accent:#c45d2c;--accent-hover:#a34d24}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent)}button,input,textarea{font:inherit}.container{max-width:720px;margin:0 auto;padding:1.5rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1.25rem}.btn{display:inline-block;background:var(--accent);color:white;border:none;border-radius:6px;padding:.6rem 1rem;cursor:pointer;text-decoration:none}.btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.input{width:100%;padding:.6rem .75rem;border:1px solid var(--border);border-radius:6px;background:white}.muted{color:var(--muted)}.error,.muted{font-size:.9rem}.error{color:#b00020}.nav{display:flex;gap:1rem;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.nav a{text-decoration:none;color:var(--text)}.nav a:hover{color:var(--accent)}.nav .brand{font-weight:700;margin-right:auto}.textarea{resize:vertical;min-height:4rem}.tabs{display:flex;gap:.5rem}.tab{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:.5rem .9rem;cursor:pointer;color:var(--text)}.tab.active{border-color:var(--accent);color:var(--accent)}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg)}.btn-danger{background:#b00020}.btn-danger:hover{background:#8f0019}.time-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:.75rem;gap:.75rem}@media (min-width:540px){.time-fields{grid-template-columns:repeat(4,minmax(0,1fr))}}