/* Индикатор загрузки */
.sbc-loading, .sbc-no-slots {
    text-align: center;
    padding: 40px 20px;
    color: #666;
    font-style: italic;
}

.sbc-loading::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
    vertical-align: middle;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Основные стили календаря */
.sbc-calendar {
    max-width: 800px;
    margin: 20px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Навигация по дате */
.sbc-date-nav {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

#sbc-date-picker {
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    min-width: 180px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

#sbc-date-picker:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

/* Контейнер слотов */
#sbc-timeslots {
    padding: 20px;
    display: grid;
    gap: 8px;
    max-height: 500px;
    overflow-y: auto;
}

/* Стили слотов */
.sbc-slot {
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    font-size: 14px;
    position: relative;
}

.sbc-slot:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Свободные слоты */
.sbc-slot.free {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #2c3e50;
}

.sbc-slot.free:hover {
    background: linear-gradient(135deg, #98e5e1 0%, #fcc8d6 100%);
    border-color: #3498db;
}

/* Занятые слоты */
.sbc-slot.booked {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    color: #2c3e50;
}

.sbc-slot.booked:hover {
    background: linear-gradient(135deg, #ff8a8e 0%, #fdbbdf 100%);
    border-color: #e74c3c;
}

/* Индикатор статуса */
.sbc-slot::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.sbc-slot.free::before {
    background: #27ae60;
    box-shadow: 0 0 6px rgba(39, 174, 96, 0.6);
}

.sbc-slot.booked::before {
    background: #e74c3c;
    box-shadow: 0 0 6px rgba(231, 76, 60, 0.6);
}

/* Модальное окно */
.sbc-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.sbc-modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 20px;
    border-radius: 8px;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.sbc-close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.sbc-close:hover {
    color: #333;
}

/* Форма бронирования */
#sbc-booking-form {
    display: grid;
    gap: 15px;
    margin-top: 20px;
}

#sbc-booking-form label {
    display: grid;
    gap: 5px;
}

#sbc-booking-form input,
#sbc-booking-form select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

#sbc-booking-form button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
}

#sbc-booking-form button:hover {
    opacity: 0.9;
}

/* Кнопка удаления */
#sbc-delete-btn {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%) !important;
    margin-top: 5px !important;
}

#sbc-delete-btn:hover {
    opacity: 0.9;
}

/* Группа кнопок */
.sbc-button-group {
    display: grid;
    gap: 8px;
}