/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    padding: 20px;
    line-height: 1.6;
}

/* Widget Container */
.booking-widget {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: relative;
}

/* Sliding Container */
.widget-content {
    position: relative;
    width: 100%;
    overflow: hidden;
    min-height: 400px;
}

.widget-panels {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    width: 200%;
    position: relative;
}

.widget-panel {
    width: 50%;
    min-width: 50%;
    max-width: 50%;
    flex-shrink: 0;
    box-sizing: border-box;
}

.widget-panels.show-form {
    transform: translateX(-50%);
}

.widget-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 24px;
    text-align: center;
}

.widget-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
}

/* Calendar Container */
.calendar-container {
    padding: 24px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.nav-btn {
    background: #f0f0f0;
    border: none;
    border-radius: 6px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-size: 18px;
    color: #666;
    transition: all 0.2s;
}

.nav-btn:hover {
    background: #e0e0e0;
    color: #333;
}

/* Calendar Grid */
.calendar-grid {
    margin-bottom: 20px;
}

.weekday-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}

.weekday {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: #666;
    padding: 8px 0;
    text-transform: uppercase;
}

.days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
}

.day.other-month {
    color: #ccc;
    cursor: default;
}

.day.past {
    color: #ddd;
    cursor: not-allowed;
}

.day.available {
    background: #f8f9ff;
    color: #667eea;
    font-weight: 500;
}

.day.available:hover {
    background: #667eea;
    color: white;
    transform: scale(1.05);
}

.day.selected {
    background: #667eea;
    color: white;
    border-color: #764ba2;
}

.day.unavailable {
    color: #999;
    cursor: default;
}

.day.today {
    border-color: #667eea;
}

/* Time Slots */
.time-slots-container {
    padding: 24px;
    border-top: 1px solid #eee;
    animation: slideIn 0.3s ease-out;
}

.time-slots-container h3 {
    font-size: 16px;
    margin-bottom: 16px;
    color: #333;
}

#selectedDate {
    color: #667eea;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
}

.time-slot {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    background: white;
}

.time-slot:hover {
    border-color: #667eea;
    background: #f8f9ff;
    transform: translateY(-2px);
}

.time-slot.selected {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.time-slot.booked {
    background: #f5f5f5;
    color: #999;
    cursor: not-allowed;
    border-color: #f0f0f0;
}

.time-slot.booked:hover {
    transform: none;
}

/* Booking Form */
.booking-form {
    padding: 24px;
}

.booking-form h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #333;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #555;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.booking-summary {
    background: #f8f9ff;
    padding: 16px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid #667eea;
}

.booking-summary p {
    margin: 4px 0;
    color: #555;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f0f0f0;
    color: #666;
}

.btn-secondary:hover {
    background: #e0e0e0;
}

/* Success Message */
.success-message {
    padding: 48px 24px;
    text-align: center;
    animation: slideIn 0.3s ease-out;
}

.success-content h3 {
    font-size: 24px;
    color: #4caf50;
    margin-bottom: 12px;
}

.success-content p {
    color: #666;
    margin-bottom: 24px;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #667eea;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 600px) {
    body {
        padding: 10px;
    }

    .booking-widget {
        border-radius: 8px;
    }

    .widget-header {
        padding: 20px;
    }

    .widget-header h2 {
        font-size: 20px;
    }

    .calendar-container,
    .time-slots-container,
    .booking-form {
        padding: 16px;
    }

    .time-slots {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .form-actions {
        flex-direction: column;
    }
}