.csb-booking-wrapper {
    max-width: 600px;
    margin: 40px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.csb-booking-form {
    background: var(--csb-background, #fff);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.csb-booking-form h2 {
    margin: 0 0 30px 0;
    font-size: 28px;
    color: var(--csb-text, #2c3e50);
    text-align: center;
}

.csb-form-group {
    margin-bottom: 24px;
}

.csb-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--csb-text, #2c3e50);
    font-size: 14px;
}

.csb-form-group input,
.csb-form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--csb-border, #e0e0e0);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.2s;
    color: var(--csb-text, #2c3e50);
}

.csb-form-group input:focus,
.csb-form-group select:focus {
    outline: none;
    border-color: var(--csb-primary, #0073aa);
    box-shadow: 0 0 0 3px rgba(102,126,234,0.1);
}

#csb-slots-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.csb-slot-option {
    padding: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.csb-slot-option:hover {
    border-color: var(--csb-primary, #0073aa);
    background: #f0f8ff;
}

.csb-slot-option.selected {
    border-color: var(--csb-primary, #0073aa);
    background: var(--csb-primary, #0073aa);
    color: #fff;
}

.csb-slot-option.full {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f5f5f5;
}

.csb-slot-time {
    font-weight: 600;
    font-size: 16px;
}

.csb-slot-availability {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.csb-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.csb-indicator.green {
    background: #46b450;
    box-shadow: 0 0 8px rgba(70,180,80,0.5);
}

.csb-indicator.orange {
    background: #f0b849;
    box-shadow: 0 0 8px rgba(240,184,73,0.5);
}

.csb-indicator.red {
    background: #dc3232;
}

.csb-hint {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: #666;
}

.csb-btn-primary {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--csb-primary, #667eea) 0%, var(--csb-secondary, #764ba2) 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.csb-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(102,126,234,0.3);
    filter: brightness(1.05);
}

.csb-btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.csb-message {
    padding: 16px;
    margin-top: 20px;
    border-radius: 8px;
    font-weight: 500;
}

.csb-message.success {
    background: var(--csb-success, #d4edda);
    color: #155724;
    border: 1px solid #c3e6cb;
}

.csb-message.error {
    background: var(--csb-error, #f8d7da);
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.csb-info {
    text-align: center;
    color: #999;
    padding: 20px;
}

.csb-checkbox-inline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 14px;
    cursor: pointer;
}

.csb-checkbox-inline input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
}

/* Kalender: groen voor beschikbare dagen, grijs voor niet-beschikbare */
.flatpickr-day.csb-available {
    background: #16a34a !important;      /* groen */
    color: #fff !important;
    border-color: #16a34a !important;
}
.flatpickr-day.csb-available:hover {
    background: #15803d !important;
    filter: brightness(0.95);
}

.flatpickr-day.flatpickr-disabled {
    background: #e5e7eb !important;      /* grijs */
    color: #9ca3af !important;
    cursor: not-allowed !important;
}
.flatpickr-day.flatpickr-disabled:hover {
    background: #e5e7eb !important;
    color: #9ca3af !important;
}

@media (max-width: 768px) {
    .csb-booking-form {
        padding: 24px;
    }
}