body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    margin: 0;
    padding: 2rem;
    background: #f5f5f7;
    color: #1d1d1f;
}
h1 { font-size: 1.5rem; font-weight: 600; }
.card {
    background: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    max-width: 960px;
    margin: 0 auto;
}
.status { color: #6e6e73; font-size: 0.9rem; }
@media (max-width: 600px) {
    body { padding: 1rem; }
    .card { padding: 1rem; }
}
.controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 0.5rem 0 1.25rem;
}
.controls button {
    border: none;
    background: #0071e3;
    color: #fff;
    font-size: 1.4rem;
    line-height: 1;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: background 0.15s, transform 0.05s;
}
.controls button:hover:not(:disabled) { background: #0077ed; }
.controls button:active:not(:disabled) { transform: scale(0.94); }
.controls button:disabled { background: #c7c7cc; cursor: default; }
.controls input[type="date"] {
    font-size: 1.1rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d2d2d7;
    border-radius: 8px;
    background: #fff;
    color: #1d1d1f;
}