/* Easy Restaurant Table Booking - Frontend Custom Styles */
/* Default Color Scheme: "Restaurant Warm" from Project Requirements */

:root {
    /* Primary Color Scheme */
    --ertb-accent: #DC2626;         /* Red 600 - Alerts, unavailable slots */
    --ertb-neutral: #374151;        /* Gray 700 - Text, borders */
    --ertb-background: #F9FAFB;     /* Gray 50 - Page background */
    --ertb-surface: #FFFFFF;        /* White - Cards, modals, form backgrounds */
    
    /* Additional Colors */
    --ertb-primary-light: #FBBF24;  /* Amber 400 */
    --ertb-primary-dark: #B45309;   /* Amber 700 */
    --ertb-secondary-light: #10B981; /* Emerald 500 */
    --ertb-secondary-dark: #047857;  /* Emerald 700 */
    --ertb-accent-light: #EF4444;    /* Red 500 */
    --ertb-accent-dark: #B91C1C;     /* Red 700 */
    --ertb-neutral-light: #6B7280;   /* Gray 500 */
    --ertb-neutral-lighter: #9CA3AF; /* Gray 400 */
    --ertb-neutral-dark: #1F2937;    /* Gray 800 */
    
    /* Status Colors */
    --ertb-status-pending: #F59E0B;   /* Amber 500 */
    --ertb-status-confirmed: #10B981; /* Emerald 500 */
    --ertb-status-cancelled: #EF4444; /* Red 500 */
    --ertb-status-completed: #6B7280; /* Gray 500 */
    
    /* Calendar Colors */
    --ertb-calendar-available: #ECFDF5;   /* Green 50 */
    --ertb-calendar-available-text: #065F46; /* Green 800 */
    --ertb-calendar-partial: #FEF3C7;     /* Yellow 50 */
    --ertb-calendar-partial-text: #92400E; /* Yellow 800 */
    --ertb-calendar-booked: #FEE2E2;      /* Red 50 */
    --ertb-calendar-booked-text: #991B1B; /* Red 800 */
    --ertb-calendar-closed: #F3F4F6;      /* Gray 100 */
    --ertb-calendar-closed-text: #6B7280; /* Gray 500 */
    
    /* Spacing */
    --ertb-spacing-xs: 0.25rem;
    --ertb-spacing-sm: 0.5rem;
    --ertb-spacing-md: 1rem;
    --ertb-spacing-lg: 1.5rem;
    --ertb-spacing-xl: 2rem;
    --ertb-spacing-2xl: 3rem;
    
    /* Border Radius */
    --ertb-radius-sm: 4px;
    --ertb-radius-md: 6px;
    --ertb-radius-lg: 8px;
    --ertb-radius-xl: 12px;
    
    /* Shadows */
    --ertb-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --ertb-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --ertb-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --ertb-transition: all 0.2s ease;
    --ertb-transition-fast: all 0.15s ease;
    --ertb-transition-slow: all 0.3s ease;
}

/* Reset and Base Styles */
.ertb-container * {
    box-sizing: border-box;
}

.ertb-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--ertb-neutral);
    background-color: var(--ertb-background);
}

.ertb-form-header {
    text-align: center;
    margin-bottom: 1rem;
}

.ertb-form-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ertb-neutral-dark);
    margin-bottom: var(--ertb-spacing-sm);
}

.ertb-form-description {
    font-size: 1rem;
    color: var(--ertb-neutral-light);
    margin-bottom: var(--ertb-spacing-md);
}



.ertb-form-container, 
.ertb-booking-form, 
.ertb-calendar-container, 
.ertb-lookup-container, 
.ertb-widget-container, 
.ertb-availability-checker-container,
.ertb-reservation-lookup-container,
.ertb-cancellation-container {
    color: var(--ertb-neutral);
    background-color: var(--ertb-background);
}

.ertb-cancellation-container {
    min-width: 200px;
    margin: 0 auto;
    width: 100%;
}

.ertb-cancellation-warning {
    border: 1px solid #fde68a;
    background-color: #fffbeb;
    color: #92400e;
    font-size: 0.875rem;
    line-height: 1.5;
    padding: 0.5rem 1rem;
    border-radius: var(--ertb-radius-md);
    margin-bottom: 1rem;
}

.ertb-cancellation-warning svg {
    color: #92400e;
    width: 3rem;
    height: 3rem;
    margin-right: 1rem;
}

.ertb-cancellation-warning p {
    color: #92400e;
    margin-bottom: 0;
}

.ertb-form-container input:not([type="checkbox"]),
.ertb-form-container select,
.ertb-form-container textarea,
.ertb-booking-form input:not([type="checkbox"]),
.ertb-booking-form select,
.ertb-booking-form textarea,
.ertb-calendar-container input,
.ertb-calendar-container select,
.ertb-calendar-container textarea,
.ertb-lookup-container input,
.ertb-lookup-container select,
.ertb-lookup-container textarea,
.ertb-widget-container input,
.ertb-widget-container select,
.ertb-widget-container textarea,
.ertb-availability-checker-container input,
.ertb-availability-checker-container select,
.ertb-availability-checker-container textarea,
.ertb-reservation-lookup-container input,
.ertb-reservation-lookup-container select,
.ertb-reservation-lookup-container textarea,
.ertb-cancellation-form input:not([type="checkbox"]),
.ertb-cancellation-form select,
.ertb-cancellation-form textarea {
    background-color: var(--ertb-surface);
    color: var(--ertb-neutral-dark);
    border: 1px solid var(--ertb-neutral-dark);
    border-radius: var(--ertb-radius-md);
    padding: var(--ertb-spacing-md);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: var(--ertb-spacing-sm);
    width: 100%;
    box-sizing: border-box;
}

.ertb-form-container input:focus,
.ertb-form-container select:focus,
.ertb-form-container textarea:focus {
    outline: none;
    border-color: var(--ertb-primary);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.submit_btn {
    background-color: var(--ertb-primary);
    color: white;
    border: none;
    border-radius: var(--ertb-radius-md);
    padding: var(--ertb-spacing-md) var(--ertb-spacing-lg);
    width: 100%;
    cursor: pointer;
    margin-top: 1rem;
}

.ertb-cancellation-response-error {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--ertb-radius-md);
    padding: var(--ertb-spacing-md);
    margin-top: var(--ertb-spacing-md);
}

.ertb-cancellation-response-error .icon-container {
    flex-shrink: 0;
}

.ertb-cancellation-response-error .message-container {
    flex: 1;
}

.ertb-cancellation-response-error .message-container h3 {
    color: #991b1b;
    font-size: 1rem;
    font-weight: 600;
}

.ertb-cancellation-response-error .message-container p {
    color: #991b1b;
    font-size: 0.875rem;
    line-height: 1.5;
}

.ertb-cancellation-response-success {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--ertb-radius-md);
    padding: var(--ertb-spacing-md);
    margin-top: var(--ertb-spacing-md);
}

.ertb-cancellation-response-success .icon-container {
    flex-shrink: 0;
}

.ertb-cancellation-response-success .message-container {
    flex: 1;
}

.ertb-cancellation-response-success .message-container h3 {
    color: #15803d;
    font-size: 1rem;
    font-weight: 600;
}

.ertb-cancellation-response-success .message-container p {
    color: #15803d;
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Typography */
.ertb-heading-1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--ertb-neutral-dark);
    margin-bottom: var(--ertb-spacing-lg);
}

.ertb-heading-2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ertb-neutral-dark);
    margin-bottom: var(--ertb-spacing-md);
}

.ertb-heading-3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--ertb-neutral-dark);
    margin-bottom: var(--ertb-spacing-sm);
}

.ertb-text-sm {
    font-size: 0.875rem;
    line-height: 1.5;
}

.ertb-text-lg {
    font-size: 1.125rem;
    line-height: 1.6;
}

/* Form Container */
.ertb-form-container {
    min-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border: 1px solid #e5e7eb;
}

.ertb-form-container h1,
.ertb-form-container h2,
.ertb-form-container > h3 {
    color: var(--ertb-neutral-dark);
    margin-bottom: var(--ertb-spacing-md);
}

/* Form Fields */
.ertb-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.ertb-form-label {
    font-weight: 500;
    color: #374151;
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.ertb-form-label.ertb-required::after {
    content: " *";
    color: #dc2626;
}

.ertb-form-group .ertb-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
}

.ertb-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.ertb-form-input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
    line-height: 1.5;
    transition: all 0.2s ease;
    background-color: #ffffff;
    color: #1f2937;
    margin-bottom: 0 !important;
}

.ertb-form-input:focus {
    outline: none;
    border-color: #d97706;
    /* box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1); */
}

.ertb-form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
    line-height: 1.5;
    transition: all 0.2s ease;
    background-color: #ffffff;
    color: #1f2937;
    resize: vertical;
    min-height: 80px;
}

.ertb-form-textarea:focus {
    outline: none;
    border-color: #d97706;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.ertb-hours-button {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    background-color: #059669;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.ertb-hours-button:hover {
    background-color: #047857;
    transform: translateY(-1px);
}

.ertb-icon {
    width: 1rem;
    height: 1rem;
}

.ertb-form-help {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

.ertb-time-slots-info {
    margin-top: 0.5rem;
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    line-height: 1.4;
}

.ertb-time-slots-info.ertb-hidden {
    display: none;
}

.ertb-time-slots-info.bg-green-50 {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
}

.ertb-time-slots-info.bg-red-50 {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
}

.ertb-time-slots-info.bg-yellow-50 {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fde68a;
}

.ertb-time-slots-title {
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.25rem;
}

.ertb-slots-display {
    margin-top: 0.25rem;
}

.ertb-slots-display .mb-2 {
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
}

.ertb-slots-display .font-medium {
    font-weight: 500;
    color: #374151;
}

.ertb-slots-display .text-gray-600 {
    color: #6b7280;
}

.text-gray-600 {
    color: #6b7280;
}

.help-text {
    color: #6b7280;
    font-size: 0.75rem;
    line-height: 0.875rem;
    margin-top: 0.25rem;
    margin-bottom: 0;
}
.help-text:before {
    content: "i";
    font-size: 0.625rem;
    font-weight: 600;
    color: white;
    width: 0.875rem;
    height: 0.875rem;
    margin-right: 0.2rem;
    background-color: #6b7280;
    color: white;
    border-radius: 50%;
    display: inline-block;
    text-align: center;
    line-height: 0.875rem;
    vertical-align: middle;
}

.ertb-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.ertb-checkbox {
    width: 1rem;
    height: 1rem;
    color: #d97706;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    cursor: pointer;
}

.ertb-checkbox:focus {
    outline: none;
    border-color: #d97706;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.ertb-checkbox-text {
    font-size: 0.875rem;
    color: #1f2937;
    line-height: 1.25rem;
}

.ertb-submit-button {
    width: 100%;
    padding: 0.75rem 1.5rem;
    background-color: #d97706;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ertb-submit-button:hover {
    background-color: #b45309;
    transform: translateY(-1px);
}

.ertb-submit-button:disabled {
    background-color: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.ertb-booking-response {
    margin-top: 1rem;
}

.ertb-booking-response p {
    color: #065f46;
}

.ertb-booking-response .bg-green-50 {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
    color: #065f46;
    padding: 1rem;
    border-radius: 6px;
}

.ertb-booking-response .bg-red-50 {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
    color: #991b1b;
    padding: 1rem;
    border-radius: 6px;
}

.ertb-booking-response .font-medium {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.ertb-booking-response .text-sm {
    font-size: 0.875rem;
    line-height: 1.25rem;
}

/* Buttons */
.ertb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--ertb-spacing-md) var(--ertb-spacing-lg);
    border: none;
    border-radius: var(--ertb-radius-md);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--ertb-transition);
    gap: var(--ertb-spacing-sm);
    min-height: 44px;
}

.ertb-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.ertb-btn-primary {
    background-color: var(--ertb-primary);
    color: white;
}

.ertb-btn-primary:hover:not(:disabled) {
    background-color: var(--ertb-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--ertb-shadow-md);
}

.ertb-btn-secondary {
    background-color: var(--ertb-secondary);
    color: white;
}

.ertb-btn-secondary:hover:not(:disabled) {
    background-color: var(--ertb-secondary-dark);
    transform: translateY(-1px);
    box-shadow: var(--ertb-shadow-md);
}

.ertb-btn-outline {
    background-color: transparent;
    color: var(--ertb-primary);
    border: 2px solid var(--ertb-primary);
}

.ertb-btn-outline:hover:not(:disabled) {
    background-color: var(--ertb-primary);
    color: white;
}

.ertb-btn-danger {
    background-color: var(--ertb-accent);
    color: white;
}

.ertb-btn-danger:hover:not(:disabled) {
    background-color: var(--ertb-accent-dark);
    transform: translateY(-1px);
    box-shadow: var(--ertb-shadow-md);
}

.ertb-btn-sm {
    padding: var(--ertb-spacing-sm) var(--ertb-spacing-md);
    font-size: 0.875rem;
    min-height: 36px;
}

.ertb-btn-lg {
    padding: var(--ertb-spacing-lg) var(--ertb-spacing-xl);
    font-size: 1.125rem;
    min-height: 52px;
}

/* Calendar Widget */
.ertb-calendar-widget {
    background: var(--ertb-surface);
    border: 1px solid #E5E7EB;
    border-radius: var(--ertb-radius-lg);
    overflow: hidden;
    box-shadow: var(--ertb-shadow-sm);
}

.ertb-calendar-header {
    background: var(--ertb-primary);
    color: white;
    padding: var(--ertb-spacing-md);
    text-align: center;
    font-weight: 600;
}

.ertb-calendar-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--ertb-spacing-md);
    background: var(--ertb-surface);
    border-bottom: 1px solid #E5E7EB;
}

.ertb-calendar-nav-btn {
    background: none;
    border: none;
    color: var(--ertb-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--ertb-spacing-sm);
    border-radius: var(--ertb-radius-sm);
    transition: var(--ertb-transition);
}

.ertb-calendar-nav-btn:hover {
    background-color: var(--ertb-primary);
    color: white;
}

.ertb-calendar-nav-btn:disabled {
    color: var(--ertb-neutral-lighter);
    cursor: not-allowed;
}

.ertb-calendar-nav-btn:disabled:hover {
    background: none;
}

.ertb-calendar-title {
    font-weight: 600;
    color: var(--ertb-neutral-dark);
}

.ertb-calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: #E5E7EB;
}

.ertb-calendar-weekday {
    background: var(--ertb-surface);
    padding: var(--ertb-spacing-sm);
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--ertb-neutral);
    border-bottom: 1px solid #E5E7EB;
}

.ertb-calendar-day {
    background: var(--ertb-surface);
    padding: var(--ertb-spacing-sm);
    text-align: center;
    cursor: pointer;
    transition: var(--ertb-transition);
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ertb-calendar-day:hover {
    background-color: var(--ertb-primary-light);
    color: white;
}

.ertb-calendar-day.selected {
    background-color: var(--ertb-primary);
    color: white;
    font-weight: 600;
}

.ertb-calendar-day.disabled {
    color: var(--ertb-neutral-lighter);
    cursor: not-allowed;
    background-color: var(--ertb-calendar-closed);
}

.ertb-calendar-day.disabled:hover {
    background-color: var(--ertb-calendar-closed);
    color: var(--ertb-neutral-lighter);
}

.ertb-calendar-day.available {
    background-color: var(--ertb-calendar-available);
    color: var(--ertb-calendar-available-text);
}

.ertb-calendar-day.partial {
    background-color: var(--ertb-calendar-partial);
    color: var(--ertb-calendar-partial-text);
}

.ertb-calendar-day.booked {
    background-color: var(--ertb-calendar-booked);
    color: var(--ertb-calendar-booked-text);
}

/* Time Slots */
.ertb-time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--ertb-spacing-sm);
    margin-top: var(--ertb-spacing-lg);
}

.ertb-time-slot {
    padding: var(--ertb-spacing-md);
    border: 2px solid #E5E7EB;
    border-radius: var(--ertb-radius-md);
    cursor: pointer;
    transition: var(--ertb-transition);
    text-align: center;
    font-weight: 500;
    background: var(--ertb-surface);
    color: var(--ertb-neutral-dark);
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ertb-time-slot:hover {
    border-color: var(--ertb-primary);
    background-color: var(--ertb-primary-light);
    color: white;
}

.ertb-time-slot.selected {
    background-color: var(--ertb-primary);
    color: white;
    border-color: var(--ertb-primary);
}

.ertb-time-slot.disabled {
    background-color: var(--ertb-calendar-closed);
    color: var(--ertb-calendar-closed-text);
    cursor: not-allowed;
    border-color: var(--ertb-calendar-closed);
}

.ertb-time-slot.disabled:hover {
    background-color: var(--ertb-calendar-closed);
    color: var(--ertb-calendar-closed-text);
    border-color: var(--ertb-calendar-closed);
}

.ertb-time-slot.partial {
    background-color: var(--ertb-calendar-partial);
    color: var(--ertb-calendar-partial-text);
    border-color: var(--ertb-status-pending);
}

/* Status Indicators */
.ertb-status {
    display: inline-flex;
    align-items: center;
    gap: var(--ertb-spacing-xs);
    padding: var(--ertb-spacing-xs) var(--ertb-spacing-sm);
    border-radius: var(--ertb-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.ertb-status-pending {
    background-color: var(--ertb-calendar-partial);
    color: var(--ertb-calendar-partial-text);
}

.ertb-status-confirmed {
    background-color: var(--ertb-calendar-available);
    color: var(--ertb-calendar-available-text);
}

.ertb-status-cancelled {
    background-color: var(--ertb-calendar-booked);
    color: var(--ertb-calendar-booked-text);
}

.ertb-status-completed {
    background-color: var(--ertb-calendar-closed);
    color: var(--ertb-calendar-closed-text);
}

/* Cards */
.ertb-card {
    background: var(--ertb-surface);
    border: 1px solid #E5E7EB;
    border-radius: var(--ertb-radius-lg);
    padding: var(--ertb-spacing-lg);
    box-shadow: var(--ertb-shadow-sm);
    transition: var(--ertb-transition);
}

.ertb-card:hover {
    box-shadow: var(--ertb-shadow-md);
}

.ertb-card-header {
    border-bottom: 1px solid #E5E7EB;
    padding-bottom: var(--ertb-spacing-md);
    margin-bottom: var(--ertb-spacing-md);
}

.ertb-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ertb-neutral-dark);
    margin: 0;
}

/* Loading States */
.ertb-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #E5E7EB;
    border-radius: 50%;
    border-top-color: var(--ertb-primary);
    animation: ertb-spin 1s ease-in-out infinite;
}

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

.ertb-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.ertb-loading-spinner {
    background: var(--ertb-surface);
    padding: var(--ertb-spacing-xl);
    border-radius: var(--ertb-radius-lg);
    box-shadow: var(--ertb-shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ertb-spacing-md);
}

/* Alerts */
.ertb-alert {
    padding: var(--ertb-spacing-md);
    border-radius: var(--ertb-radius-md);
    margin-bottom: var(--ertb-spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--ertb-spacing-sm);
}

.ertb-alert-success {
    background-color: var(--ertb-calendar-available);
    color: var(--ertb-calendar-available-text);
    border: 1px solid var(--ertb-secondary);
}

.ertb-alert-error {
    background-color: var(--ertb-calendar-booked);
    color: var(--ertb-calendar-booked-text);
    border: 1px solid var(--ertb-accent);
}

.ertb-alert-warning {
    background-color: var(--ertb-calendar-partial);
    color: var(--ertb-calendar-partial-text);
    border: 1px solid var(--ertb-status-pending);
}

.ertb-alert-info {
    background-color: var(--ertb-calendar-closed);
    color: var(--ertb-calendar-closed-text);
    border: 1px solid var(--ertb-neutral-lighter);
}

/* Utility Classes */
.ertb-text-center { text-align: center; }
.ertb-text-left { text-align: left; }
.ertb-text-right { text-align: right; }

.ertb-mt-xs { margin-top: var(--ertb-spacing-xs); }
.ertb-mt-sm { margin-top: var(--ertb-spacing-sm); }
.ertb-mt-md { margin-top: var(--ertb-spacing-md); }
.ertb-mt-lg { margin-top: var(--ertb-spacing-lg); }
.ertb-mt-xl { margin-top: var(--ertb-spacing-xl); }

.ertb-mb-xs { margin-bottom: var(--ertb-spacing-xs); }
.ertb-mb-sm { margin-bottom: var(--ertb-spacing-sm); }
.ertb-mb-md { margin-bottom: var(--ertb-spacing-md); }
.ertb-mb-lg { margin-bottom: var(--ertb-spacing-lg); }
.ertb-mb-xl { margin-bottom: var(--ertb-spacing-xl); }

.ertb-ml-xs { margin-left: var(--ertb-spacing-xs); }
.ertb-ml-sm { margin-left: var(--ertb-spacing-sm); }
.ertb-ml-md { margin-left: var(--ertb-spacing-md); }
.ertb-ml-lg { margin-left: var(--ertb-spacing-lg); }
.ertb-ml-xl { margin-left: var(--ertb-spacing-xl); }

.ertb-mr-xs { margin-right: var(--ertb-spacing-xs); }
.ertb-mr-sm { margin-right: var(--ertb-spacing-sm); }
.ertb-mr-md { margin-right: var(--ertb-spacing-md); }
.ertb-mr-lg { margin-right: var(--ertb-spacing-lg); }
.ertb-mr-xl { margin-right: var(--ertb-spacing-xl); }

.ertb-p-xs { padding: var(--ertb-spacing-xs); }
.ertb-p-sm { padding: var(--ertb-spacing-sm); }
.ertb-p-md { padding: var(--ertb-spacing-md); }
.ertb-p-lg { padding: var(--ertb-spacing-lg); }
.ertb-p-xl { padding: var(--ertb-spacing-xl); }

.ertb-hidden { display: none; }
.ertb-block { display: block; }
.ertb-inline-block { display: inline-block; }
.ertb-flex { display: flex; }
.ertb-inline-flex { display: inline-flex; }

.ertb-items-center { align-items: center; }
.ertb-items-start { align-items: flex-start; }
.ertb-items-end { align-items: flex-end; }

.ertb-justify-center { justify-content: center; }
.ertb-justify-between { justify-content: space-between; }
.ertb-justify-start { justify-content: flex-start; }
.ertb-justify-end { justify-content: flex-end; }

.ertb-gap-xs { gap: var(--ertb-spacing-xs); }
.ertb-gap-sm { gap: var(--ertb-spacing-sm); }
.ertb-gap-md { gap: var(--ertb-spacing-md); }
.ertb-gap-lg { gap: var(--ertb-spacing-lg); }
.ertb-gap-xl { gap: var(--ertb-spacing-xl); }

/* Responsive Design */
@media (max-width: 768px) {
    .ertb-form-container {
        margin: var(--ertb-spacing-md);
        padding: var(--ertb-spacing-lg);
        width: 100%;
        min-width: 100%;
    }
    
    .ertb-time-slots {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
    
    .ertb-calendar-day {
        min-height: 40px;
        font-size: 0.875rem;
    }
    
    .ertb-btn {
        width: 100%;
        margin-bottom: var(--ertb-spacing-sm);
    }
    
    .ertb-btn + .ertb-btn {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    .ertb-form-container {
        margin: var(--ertb-spacing-sm);
        padding: var(--ertb-spacing-md);
    }
    
    .ertb-time-slots {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ertb-calendar-day {
        min-height: 36px;
        font-size: 0.75rem;
    }
}

/* Print Styles */
@media print {
    .ertb-container {
        background: white;
        color: black;
    }
    
    .ertb-form-container,
    .ertb-calendar-widget,
    .ertb-card {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .ertb-btn {
        display: none;
    }
    
    .ertb-loading-overlay {
        display: none;
    }
}

/* Accessibility */
.ertb-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for keyboard navigation */
.ertb-btn:focus,
.ertb-form-input:focus,
.ertb-form-select:focus,
.ertb-form-textarea:focus,
.ertb-calendar-day:focus,
.ertb-time-slot:focus {
    outline: 2px solid var(--ertb-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .ertb-form-container,
    .ertb-calendar-widget,
    .ertb-card {
        border: 2px solid #000;
    }
    
    .ertb-btn {
        border: 2px solid currentColor;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .ertb-btn,
    .ertb-calendar-day,
    .ertb-time-slot,
    .ertb-card {
        transition: none;
    }
    
    .ertb-loading {
        animation: none;
    }
}

/* Opening Hours Display */
.ertb-opening-hours-info {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.1);
}

.ertb-opening-hours-info h3 {
    color: #1e40af;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ertb-opening-hours-info h3::before {
    content: "🕒";
    font-size: 1.25rem;
}

.ertb-opening-hours-info .space-y-2 > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

.ertb-opening-hours-info .space-y-2 > div:last-child {
    border-bottom: none;
}

.ertb-opening-hours-info .font-medium {
    font-weight: 500;
    color: #1e40af;
}

.ertb-opening-hours-info .text-blue-600 {
    color: #2563eb;
    font-weight: 500;
}

/* Time Slots Information */
#ertb-time-slots-info {
    border-radius: 6px;
    padding: 0.75rem;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    line-height: 1.4;
}

#ertb-time-slots-info.bg-green-50 {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
}

#ertb-time-slots-info.bg-red-50 {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
}

#ertb-time-slots-info.bg-yellow-50 {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fde68a;
}

#ertb-slots-display {
    margin-top: 0.5rem;
}

#ertb-slots-display .mb-2 {
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
}

#ertb-slots-display .font-medium {
    font-weight: 500;
    color: #374151;
}

#ertb-slots-display .text-gray-600 {
    color: #6b7280;
}

/* Form Field Enhancements */
.ertb-form-container label {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 0.25rem;
}

.ertb-form-container label .text-red-500 {
    color: #ef4444;
    font-weight: 600;
}

.ertb-form-container input[type="date"],
.ertb-form-container input[type="time"],
.ertb-form-container input[type="number"],
.ertb-form-container input[type="text"],
.ertb-form-container input[type="email"],
.ertb-form-container input[type="tel"],
.ertb-form-container select,
.ertb-form-container textarea {
    transition: all 0.2s ease;
    border: 1px solid #d1d5db;
}

.ertb-form-container input:focus,
.ertb-form-container select:focus,
.ertb-form-container textarea:focus {
    border-color: #f97316;
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
    outline: none;
}

.ertb-form-container input.border-red-500,
.ertb-form-container select.border-red-500,
.ertb-form-container textarea.border-red-500 {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Responsive Design for Opening Hours */
@media (max-width: 640px) {
    .ertb-opening-hours-info {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .ertb-opening-hours-info h3 {
        font-size: 1rem;
    }
    
    .ertb-opening-hours-info .space-y-2 > div {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    #ertb-time-slots-info {
        padding: 0.5rem;
        font-size: 0.7rem;
    }
}

/* Grouped Time Dropdown Styles */
.ertb-form-container select optgroup {
    font-weight: 600;
    color: var(--ertb-primary-dark);
    background-color: var(--ertb-background);
    padding: var(--ertb-spacing-sm) 0;
    border-bottom: 1px solid var(--ertb-neutral-lighter);
}

.ertb-form-container select optgroup:last-child {
    border-bottom: none;
}

.ertb-form-container select optgroup option {
    font-weight: 400;
    color: var(--ertb-neutral-dark);
    background-color: var(--ertb-surface);
    padding: var(--ertb-spacing-sm) var(--ertb-spacing-md);
    margin-left: var(--ertb-spacing-md);
}

.ertb-form-container select optgroup option:hover {
    background-color: var(--ertb-primary-light);
    color: var(--ertb-neutral-dark);
}

.ertb-form-container select optgroup option:checked {
    background-color: var(--ertb-primary);
    color: white;
}

/* Time slots info styling */
#ertb-time-slots-info {
    border-radius: 6px;
    padding: 0.75rem;
    margin-top: 0.5rem;
    font-size: 0.75rem;
    line-height: 1.4;
}

#ertb-time-slots-info.bg-green-50 {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
}

#ertb-time-slots-info.bg-red-50 {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
}

#ertb-time-slots-info.bg-yellow-50 {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fde68a;
}

#ertb-time-slots-info.bg-blue-50 {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #93c5fd;
}

#ertb-slots-display {
    margin-top: 0.5rem;
}

#ertb-slots-display .mb-2 {
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
}

#ertb-slots-display .font-medium {
    font-weight: 500;
    color: #374151;
}

#ertb-slots-display .text-orange-500 {
    color: #f97316;
}

/* Restaurant Hours Modal Styles */
.ertb-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ertb-modal.hidden {
    display: none;
}

.ertb-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.ertb-modal-content {
    position: relative;
    background: var(--ertb-surface);
    border-radius: var(--ertb-radius-xl);
    box-shadow: var(--ertb-shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    animation: ertb-modal-slide-in 0.3s ease-out;
}

@keyframes ertb-modal-slide-in {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.ertb-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--ertb-spacing-lg);
    border-bottom: 1px solid var(--ertb-neutral-lighter);
    background: linear-gradient(135deg, var(--ertb-secondary) 0%, var(--ertb-secondary-dark) 100%);
    border-top-left-radius: var(--ertb-radius-xl);
    border-top-right-radius: var(--ertb-radius-xl);
}

.ertb-modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: white;
}

.ertb-modal-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--ertb-spacing-xs);
    border-radius: var(--ertb-radius-sm);
    transition: var(--ertb-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ertb-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.ertb-modal-body {
    padding: var(--ertb-spacing-lg);
    overflow-y: auto;
    max-height: calc(80vh - 80px);
}

/* Opening Hours Display Styles */
.ertb-opening-hours-display {
    color: var(--ertb-neutral-dark);
}

.ertb-periods-list {
    space-y: var(--ertb-spacing-md);
}

.ertb-periods-list > * + * {
    margin-top: var(--ertb-spacing-md);
}

.ertb-period-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--ertb-spacing-md);
    background: var(--ertb-background);
    border-radius: var(--ertb-radius-lg);
    border: 1px solid var(--ertb-neutral-lighter);
    transition: var(--ertb-transition);
}

.ertb-period-item:hover {
    border-color: var(--ertb-primary-light);
    box-shadow: var(--ertb-shadow-sm);
}

.ertb-period-name {
    font-weight: 600;
    color: var(--ertb-primary-dark);
    font-size: 1.1rem;
}

.ertb-period-time {
    font-weight: 500;
    color: var(--ertb-neutral-dark);
    font-size: 1rem;
}

.ertb-no-hours {
    text-align: center;
    color: var(--ertb-neutral-light);
    font-style: italic;
    padding: var(--ertb-spacing-lg);
}

.ertb-closed-days {
    margin-top: var(--ertb-spacing-lg);
    padding-top: var(--ertb-spacing-lg);
    border-top: 1px solid var(--ertb-neutral-lighter);
}

.ertb-closed-days h4 {
    font-weight: 600;
    color: var(--ertb-accent-dark);
    margin-bottom: var(--ertb-spacing-sm);
    font-size: 1rem;
}

.ertb-closed-days p {
    color: var(--ertb-neutral-dark);
    font-weight: 500;
}

/* Responsive Modal */
@media (max-width: 640px) {
    .ertb-modal-content {
        width: 95%;
        margin: var(--ertb-spacing-md);
    }
    
    .ertb-modal-header {
        padding: var(--ertb-spacing-md);
    }
    
    .ertb-modal-body {
        padding: var(--ertb-spacing-md);
    }
    
    .ertb-period-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--ertb-spacing-sm);
    }
    
    .ertb-period-name {
        font-size: 1rem;
    }
    
    .ertb-period-time {
        font-size: 0.9rem;
    }
}

/* Modal Animation for Closing */
.ertb-modal.closing .ertb-modal-content {
    animation: ertb-modal-slide-out 0.2s ease-in forwards;
}

@keyframes ertb-modal-slide-out {
    from {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    to {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
}

/* Focus Management */
.ertb-modal:not(.hidden) .ertb-modal-close:focus {
    outline: 2px solid var(--ertb-primary);
    outline-offset: 2px;
}

/* Keyboard Navigation */
.ertb-modal:not(.hidden) {
    outline: none;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .ertb-modal-overlay {
        background-color: rgba(0, 0, 0, 0.8);
    }
    
    .ertb-modal-content {
        border: 2px solid var(--ertb-neutral-dark);
    }
    
    .ertb-period-item {
        border: 2px solid var(--ertb-neutral-dark);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .ertb-modal-content {
        animation: none;
    }
    
    .ertb-modal.closing .ertb-modal-content {
        animation: none;
    }
}

/* Body scroll prevention when modal is open */
body.ertb-modal-open {
    overflow: hidden;
    padding-right: 15px; /* Prevent layout shift from scrollbar */
}

/* Modal open state */
.ertb-modal.ertb-modal-open {
    display: flex;
}

/* Ensure modal is always on top */
.ertb-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ertb-form-group-inline {
    display: flex;
    align-items: center;        /* Vertically center checkbox and label */
    justify-content: flex-start;/* Left-align contents */
    gap: 8px;                   /* Space between checkbox and label */
    margin-bottom: 1rem;
}

.ertb-party-size-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 220px;
}

.ertb-party-size-btn {
    width: 36px;
    height: 36px;
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1.25rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.ertb-party-size-btn:active {
    background: #e5e7eb;
}

.ertb-party-size-group .ertb-form-input {
    text-align: center;
    max-width: 60px;
    margin: 0;
}

select.ertb-form-input {
    padding: 1rem;
    font-size: 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    background: #fff;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    line-height: 1.5;
    box-sizing: border-box;
  }

.ertb-party-size-vertical {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #fff;
    width: max-content;
    min-width: 120px;
    height: 58px;
}

.ertb-party-size-btn-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    background: var(--ertb-secondary);
    border-radius: 8px 0 0 8px;
    overflow: hidden;
    height: 100%;
}

.ertb-party-size-btn-vertical {
    width: 40px;
    height: 50%;
    background: var(--ertb-secondary);
    color: #fff;
    border: none;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
}

.ertb-party-size-btn-vertical:first-child {
    border-bottom: 1px solid #d1d5db;
}

.ertb-party-size-btn-vertical:hover {
    background: var(--ertb-primary);
}

.ertb-party-size-btn-vertical:active {
    background: #34d399;
}

.ertb-party-size-value-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 1.25rem;
    min-width: 60px;
}

.ertb-party-size-value-group .ertb-party-size-value {
    border: none !important;
    background: transparent;
    font-size: 2rem !important;
    font-weight: 600;
    color: #1f2937;
    text-align: center;
    width: 60px;
    outline: none;
    margin: 0 !important;
    padding: 0 !important;
    height: 60%;
}

.ertb-party-size-value::-webkit-inner-spin-button,
.ertb-party-size-value::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.ertb-party-size-unit {
    font-size: 0.5rem;
    color: #6b7280;
    text-align: center;
}

/* Success Message Styles */
.ertb-success-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--ertb-spacing-2xl);
    background: linear-gradient(135deg, var(--ertb-secondary) 0%, var(--ertb-secondary-dark) 100%);
    border-radius: var(--ertb-radius-xl);
    color: white;
    box-shadow: var(--ertb-shadow-lg);
    margin: var(--ertb-spacing-lg) 0;
    animation: ertb-success-fade-in 0.6s ease-out;
}

@keyframes ertb-success-fade-in {
    0% {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.ertb-success-icon {
    margin-bottom: var(--ertb-spacing-lg);
}

.ertb-success-icon .ertb-icon {
    width: 4rem;
    height: 4rem;
    color: white;
    stroke-width: 2;
}

.ertb-success-content {
    max-width: 500px;
}

.ertb-success-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--ertb-spacing-md);
    color: white;
}

.ertb-success-message-text {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--ertb-spacing-lg);
    color: rgba(255, 255, 255, 0.95);
}

.ertb-booking-id {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--ertb-spacing-sm);
    margin-bottom: var(--ertb-spacing-xl);
    padding: var(--ertb-spacing-lg);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--ertb-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.ertb-booking-id-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ertb-booking-id-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    font-family: 'Courier New', monospace;
    background-color: rgba(255, 255, 255, 0.15);
    padding: var(--ertb-spacing-sm) var(--ertb-spacing-md);
    border-radius: var(--ertb-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.ertb-success-actions {
    margin-top: var(--ertb-spacing-lg);
}

.ertb-new-booking-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--ertb-spacing-sm);
    padding: var(--ertb-spacing-md) var(--ertb-spacing-xl);
    background-color: white;
    color: var(--ertb-secondary);
    border: 2px solid white;
    border-radius: var(--ertb-radius-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--ertb-transition);
    box-shadow: var(--ertb-shadow-md);
}

.ertb-new-booking-btn:hover {
    background-color: var(--ertb-background);
    color: var(--ertb-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--ertb-shadow-lg);
}

.ertb-new-booking-btn:active {
    transform: translateY(0);
}

.ertb-new-booking-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3), var(--ertb-shadow-md);
}

/* Hidden Form State */
.ertb-booking-form.ertb-hidden {
    display: none;
}

/* Responsive Success Message */
@media (max-width: 768px) {
    .ertb-success-message {
        padding: var(--ertb-spacing-xl);
        margin: var(--ertb-spacing-md) 0;
    }
    
    .ertb-success-title {
        font-size: 1.5rem;
    }
    
    .ertb-success-message-text {
        font-size: 1rem;
    }
    
    .ertb-booking-id-value {
        font-size: 1.25rem;
    }
    
    .ertb-new-booking-btn {
        padding: var(--ertb-spacing-sm) var(--ertb-spacing-lg);
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .ertb-success-message {
        padding: var(--ertb-spacing-lg);
    }
    
    .ertb-success-icon .ertb-icon {
        width: 3rem;
        height: 3rem;
    }
    
    .ertb-success-title {
        font-size: 1.25rem;
    }
    
    .ertb-booking-id {
        padding: var(--ertb-spacing-md);
    }
    
    .ertb-booking-id-value {
        font-size: 1.125rem;
        padding: var(--ertb-spacing-xs) var(--ertb-spacing-sm);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .ertb-success-message {
        border: 3px solid white;
    }
    
    .ertb-booking-id {
        border: 2px solid white;
    }
    
    .ertb-new-booking-btn {
        border: 2px solid var(--ertb-secondary);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .ertb-success-message {
        animation: none;
    }
    
    .ertb-new-booking-btn:hover {
        transform: none;
    }
}

/* Enhanced Calendar Styles */
.ertb-calendar-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.ertb-calendar-widget {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.ertb-calendar-widget:hover {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.ertb-calendar-header {
    background: linear-gradient(135deg, #fed7aa 0%, #fdba74 100%);
    border-bottom: 1px solid #f3f4f6;
}

.ertb-calendar-title {
    font-weight: 800;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.ertb-nav-btn {
    transition: all 0.2s ease;
    border-radius: 12px;
    font-weight: 600;
}

.ertb-nav-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.ertb-nav-btn:active {
    transform: translateY(0);
}

.ertb-day-header {
    font-weight: 700;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
}

.ertb-day {
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.ertb-day::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.ertb-day:hover::before {
    opacity: 1;
}

.ertb-day:hover {
    transform: scale(1.05);
    z-index: 10;
}

.ertb-day:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.3);
}

/* Time Slots Container */
.ertb-time-slots-container {
    transition: all 0.3s ease;
}

.ertb-time-slots-placeholder {
    border-radius: 16px;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    border: 2px dashed #d1d5db;
}

.ertb-time-slots-placeholder:hover {
    border-color: #fbbf24;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.ertb-time-slots-loading {
    border-radius: 16px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.ertb-loading-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.ertb-time-slots-error {
    border-radius: 16px;
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border: 1px solid #fecaca;
}

.ertb-retry-btn {
    transition: all 0.2s ease;
    font-weight: 600;
}

.ertb-retry-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

/* Time Slot Buttons */
.ertb-time-slot-btn {
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.ertb-time-slot-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.ertb-time-slot-btn:hover::before {
    left: 100%;
}

.ertb-time-slot-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.ertb-time-slot-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.3);
}

.ertb-time-slot-btn:active {
    transform: translateY(0);
}

/* Selected Time Slot */
.ertb-time-slot-btn.ring-2 {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(217, 119, 6, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(217, 119, 6, 0);
    }
}

/* Calendar Legend */
.ertb-calendar-legend {
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

.ertb-calendar-legend .w-4 {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Success Message */
.ertb-time-slot-selected-message {
    border-radius: 12px;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 1px solid #bbf7d0;
    animation: slideInDown 0.3s ease;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .ertb-calendar-container {
        padding: 0.5rem;
    }
    
    .ertb-calendar-widget {
        border-radius: 12px;
    }
    
    .ertb-calendar-header {
        padding: 1rem;
    }
    
    .ertb-calendar-title {
        font-size: 1.125rem;
    }
    
    .ertb-nav-btn {
        padding: 0.5rem;
    }
    
    .ertb-day {
        height: 3rem;
        font-size: 0.875rem;
    }
    
    .ertb-time-slots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .ertb-time-slot-btn {
        padding: 0.75rem 0.5rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .ertb-calendar-container {
        padding: 0.25rem;
    }
    
    .ertb-calendar-header {
        padding: 0.75rem;
    }
    
    .ertb-calendar-title {
        font-size: 1rem;
    }
    
    .ertb-day {
        height: 2.5rem;
        font-size: 0.75rem;
    }
    
    .ertb-time-slots-grid {
        grid-template-columns: 1fr;
    }
    
    .ertb-time-slot-btn {
        padding: 1rem 0.75rem;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    .ertb-day,
    .ertb-time-slot-btn,
    .ertb-nav-btn {
        transition: none;
        animation: none;
    }
    
    .ertb-day:hover,
    .ertb-time-slot-btn:hover {
        transform: none;
    }
}

@media (prefers-contrast: high) {
    .ertb-calendar-widget {
        border: 2px solid #000;
    }
    
    .ertb-day {
        border: 1px solid #000;
    }
    
    .ertb-time-slot-btn {
        border: 2px solid #000;
    }
}

/* Focus Indicators */
.ertb-day:focus-visible,
.ertb-time-slot-btn:focus-visible,
.ertb-nav-btn:focus-visible {
    outline: 3px solid rgb(217, 119, 6);
    outline-offset: 2px;
}