.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.role-selector {
    display: flex;
    background: var(--bg-light, #f7fafc);
    padding: 4px;
    border-radius: 8px;
    border: 1px solid var(--border, #e2e8f0);
}

.role-selector button {
    border: none;
    background: transparent;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-muted, #718096);
    transition: all 0.2s ease;
}

.role-selector button.active {
    background: white;
    color: var(--primary, #0084c9);
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.weekly-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1rem;
}

.day-column {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    border: 1px solid var(--border, #e2e8f0);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.day-header {
    background: var(--primary, #0084c9);
    color: white;
    padding: 1rem;
    text-align: center;
}

.day-name {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.85;
    font-weight: 600;
}

.day-date {
    font-size: 1.4rem;
    font-weight: 800;
}

.slots-container {
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.time-slot {
    padding: 0.8rem;
    border-radius: 8px;
    background: white;
    border: 1px solid var(--border, #e2e8f0);
    font-size: 0.85rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.time-slot:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.time-slot.available {
    border-left: 4px solid var(--success, #38a169);
    background: #f0fff4;
}

.time-slot.pending {
    border-left: 4px solid var(--warning, #dd6b20);
    background: #fffaf0;
}

.time-slot.confirmed {
    border-left: 4px solid var(--primary, #0084c9);
    background: #ebf8ff;
}

.time-slot.full {
    border-left: 4px solid var(--danger, #e53e3e);
    background: #fff5f5;
}

.slot-time {
    font-weight: 700;
    color: var(--text-dark, #1a202c);
    font-size: 0.95rem;
}

.slot-status {
    font-size: 0.75rem;
    color: var(--text-muted, #718096);
    margin-top: 4px;
}

.slot-op-card {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px dashed #cbd5e1;
    font-size: 0.8rem;
}

.slot-op-guest {
    font-weight: 700;
    color: #1e293b;
}

.slot-op-rel {
    color: #64748b;
    font-size: 0.75rem;
}

.slot-op-actions {
    display: flex;
    gap: 4px;
    margin-top: 6px;
    flex-wrap: wrap;
}

.slot-op-actions button {
    padding: 4px 8px;
    font-size: 0.7rem;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    color: white;
}

.btn-approve { background: var(--success, #38a169); }
.btn-approve:hover { background: #2f855a; }

.btn-reject { background: var(--danger, #e53e3e); }
.btn-reject:hover { background: #c53030; }

@media (max-width: 1024px) {
    .weekly-grid {
        grid-template-columns: 1fr;
    }
}