/* Professional Dark Theme Booking System */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-bg: #0f0f0f;
    --secondary-bg: #1a1a1a;
    --card-bg: #242424;
    --accent-orange: #ff6b35;
    --accent-orange-hover: #e55a2b;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    --border-color: #333333;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
}

.container {
    max-width: 900px;
    margin: 20px auto;
    background: var(--secondary-bg);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.header {
    background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
    color: white;
    padding: 24px 32px;
    text-align: center;
    position: relative;
}

.header h1 {
    font-size: 1.75rem;
    margin-bottom: 6px;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.header p {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 400;
}

.header-tabs {
    position: absolute;
    top: 12px;
    right: 20px;
    display: flex;
    gap: 8px;
}
.tab-content {
      display: none;
    }
    .tab-content.active {
      display: block;
    }

    #toggleTabLink {
      display: inline-block;
      margin-bottom: 20px;
      cursor: pointer;
      color: blue;
      text-decoration: underline;
    }
.tab-btn {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.tab-btn:hover {
    background: rgba(255,255,255,0.2);
}

.tab-btn.active {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.4);
}

.content {
    padding: 32px;
}

.step {
    margin-bottom: 32px;
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInUp 0.4s ease forwards;
}

.step.active {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-title {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.step-number {
    background: var(--accent-orange);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-weight: 600;
    font-size: 0.8rem;
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.package-card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--card-bg);
    position: relative;
    overflow: hidden;
}

.package-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-orange);
    transform: scaleX(0);
    transition: transform 0.2s ease;
}

.package-card:hover::before {
    transform: scaleX(1);
}

.package-card:hover {
    border-color: var(--accent-orange);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.1);
}

.package-card.selected {
    border-color: var(--accent-orange);
    background: rgba(255, 107, 53, 0.05);
}

.package-card.selected::before {
    transform: scaleX(1);
}

.package-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.package-description {
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
    font-size: 0.9rem;
}

.package-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-orange);
}

.package-duration {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.calendar-container {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.calendar-nav {
    background: var(--accent-orange);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-nav:hover {
    background: var(--accent-orange-hover);
}

.calendar-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

.calendar-day-header {
    padding: 8px 4px;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.9rem;
    min-height: 36px;
}

.calendar-day.available {
    background: rgba(255, 107, 53, 0.1);
    color: var(--accent-orange);
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.calendar-day.available:hover {
    background: var(--accent-orange);
    color: white;
    transform: scale(1.05);
}

.calendar-day.selected {
    background: var(--accent-orange);
    color: white;
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.3);
}

.calendar-day.unavailable {
    color: var(--text-muted);
    cursor: not-allowed;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.time-slot {
    padding: 10px 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.9rem;
}

.time-slot:hover {
    border-color: var(--accent-orange);
    background: rgba(255, 107, 53, 0.05);
}

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

.time-slot.unavailable {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--secondary-bg);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    transition: border-color 0.2s ease;
    background: var(--card-bg);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.checkbox-input {
    margin-right: 8px;
    accent-color: var(--accent-orange);
}

.checkbox-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.btn {
    background: var(--accent-orange);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background: var(--accent-orange-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}

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

.btn-secondary:hover {
    background: #555555;
}

.btn-success {
    background: var(--success-color);
}

.btn-success:hover {
    background: #059669;
}

.btn-danger {
    background: var(--error-color);
}

.btn-danger:hover {
    background: #dc2626;
}

.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.booking-summary {
    background: rgba(255, 107, 53, 0.05);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}

.summary-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-orange);
    margin-bottom: 12px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.summary-total {
    border-top: 1px solid rgba(255, 107, 53, 0.2);
    padding-top: 12px;
    margin-top: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent-orange);
    display: flex;
    justify-content: space-between;
}

.manage-booking {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 24px;
    margin-top: 24px;
    border: 1px solid var(--border-color);
    display: none;
}

.manage-booking.active {
    display: block;
}

.manage-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-align: center;
}

.booking-details {
    background: var(--secondary-bg);
    border-radius: 6px;
    padding: 16px;
    margin-top: 16px;
    border: 1px solid var(--border-color);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    padding: 4px 0;
    font-size: 0.9rem;
}

.detail-label {
    font-weight: 500;
    color: var(--text-primary);
}

.detail-value {
    color: var(--text-secondary);
}

/* Admin Panel Styles */
.admin-header {
    background: var(--secondary-bg);
    color: var(--text-primary);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
    font-size: 1.4rem;
    font-weight: 600;
}

.admin-nav {
    display: flex;
    gap: 16px;
}

.admin-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.admin-nav a:hover, .admin-nav a.active {
    background: var(--accent-orange);
    color: white;
}

.admin-content {
    padding: 24px;
    background: var(--primary-bg);
    min-height: calc(100vh - 80px);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--secondary-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid var(--border-color);
}

.table th, .table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.table th {
    background: var(--card-bg);
    font-weight: 600;
    color: var(--text-primary);
}

.table td {
    color: var(--text-secondary);
}

.table tr:hover {
    background: rgba(255, 107, 53, 0.02);
}

.status-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-confirmed {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-pending {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.status-cancelled {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

/* Day-specific time slots indicator */
.day-indicator {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-align: center;
    padding: 8px;
    background: rgba(255, 107, 53, 0.05);
    border-radius: 6px;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        border-radius: 8px;
    }
    
    .content {
        padding: 20px;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
    }
    
    .time-slots {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
    
    .calendar-grid {
        gap: 2px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .header-tabs {
        position: static;
        margin-top: 12px;
        justify-content: center;
    }
    
    .admin-header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .admin-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Popup Styles for Integration */
.booking-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.booking-popup.active {
    opacity: 1;
    visibility: visible;
}

.booking-popup .container {
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    margin: 0;
}

.booking-popup.active .container {
    transform: scale(1);
}

.popup-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0,0,0,0.6);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    color: white;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.popup-close:hover {
    background: rgba(0,0,0,0.8);
    transform: rotate(90deg);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-orange);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-orange-hover);
}