* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 480px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 1.5rem;
}

header h1 {
    margin: 0 0 0.5rem;
    font-size: 1.75rem;
    color: #1a1a2e;
}

.subtitle {
    margin: 0;
    font-size: 0.9rem;
    color: #666;
}

.card {
    background: #fff;
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.card h2 {
    margin: 0 0 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: #444;
}

.lesson-grid {
    margin-bottom: 1rem;
}

.lesson-group {
    margin-bottom: 1.25rem;
}

.lesson-group:last-child {
    margin-bottom: 0;
}

.group-title {
    margin: 0 0 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #555;
}

.group-checks {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.group-checks label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}

.group-checks input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.lesson-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem 1rem;
}

@media (min-width: 480px) {
    .lesson-items {
        grid-template-columns: repeat(3, 1fr);
    }
}

.lesson-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lesson-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.lesson-item label {
    cursor: pointer;
    font-size: 0.9rem;
    user-select: none;
}

.lesson-time {
    font-size: 0.8rem;
    color: #6b7280;
    margin-left: 0.25em;
    white-space: nowrap;
}

.actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

button {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background: #f0f0f0;
}

button.primary {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}

button.primary:hover {
    background: #1d4ed8;
}

.status {
    margin: 0 0 0.75rem;
    font-size: 0.9rem;
}

.status.granted {
    color: #059669;
}

.status.denied {
    color: #dc2626;
}

.status.default {
    color: #6b7280;
}

.info p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.hint {
    margin-top: 0.75rem !important;
    font-size: 0.8rem !important;
    color: #6b7280;
}