/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #6b7280;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;

    /* Background */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;

    /* Glass Effect */
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-border: rgba(148, 163, 184, 0.2);

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Utility Classes */
.screen {
    display: none;
}

.screen.active {
    display: flex;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

/* Login Screen */
#loginScreen {
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-md);
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header p {
    color: var(--text-secondary);
}

.login-hint {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: var(--spacing-md);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

textarea.form-control {
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* Buttons */
.btn {
    padding: 0.75rem var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: #4b5563;
}

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

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

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

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

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

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem var(--spacing-md);
    font-size: 0.875rem;
}

/* Main App Layout */
#mainApp {
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: 280px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    margin-bottom: var(--spacing-xl);
}

.sidebar-header h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-md);
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-nav {
    flex: 1;
    margin-bottom: var(--spacing-lg);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.nav-item:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    transform: translateX(5px);
}

.nav-item.active {
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary-color);
}

.nav-icon {
    font-size: 1.25rem;
}

.logout-btn {
    margin-top: auto;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    padding: var(--spacing-xl);
    min-height: 100vh;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.view-header h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.date-display {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    transition: transform var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 3rem;
    opacity: 0.8;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.chart-card {
    padding: var(--spacing-xl);
}

.chart-card h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.chart-card canvas {
    max-height: 300px;
}

/* Table */
.table-controls {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.table-controls .form-control {
    max-width: 300px;
}

.table-container {
    overflow-x: auto;
    margin-bottom: var(--spacing-xl);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: rgba(15, 23, 42, 0.5);
}

.data-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--glass-border);
    white-space: nowrap;
}

.data-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.05);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-active {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.status-expired {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.status-pending {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.status-contacted {
    background: rgba(6, 182, 212, 0.2);
    color: var(--info-color);
}

.status-converted {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.status-lost {
    background: rgba(107, 114, 128, 0.2);
    color: var(--secondary-color);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.action-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
}

.action-btn:hover {
    transform: scale(1.05);
}

/* Plans Grid */
.plans-grid {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
}

.plan-card {
    min-width: 300px;
    flex: 0 0 auto;
}

.plan-card {
    background: var(--glass-bg);
    flex: 0 0 320px;
    min-width: 320px;
    min-width: 300px;
    flex: 0 0 auto;
    min-width: 300px;
    flex: 0 0 auto;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color));
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.plan-header {
    margin-bottom: var(--spacing-lg);
}

.plan-name {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.plan-price {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.plan-price span {
    font-size: 1rem;
    color: var(--text-muted);
}

.plan-duration {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.plan-discount {
    display: inline-block;
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.plan-trial {
    display: inline-block;
    background: rgba(6, 182, 212, 0.2);
    color: var(--info-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
    margin-left: var(--spacing-sm);
}

.plan-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.plan-features li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.plan-features li:before {
    content: '✓';
    color: var(--success-color);
    font-weight: bold;
}

.plan-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Classes Grid */
.classes-grid {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
}

.class-card {
    min-width: 350px;
    flex: 0 0 auto;
}

.class-card {
    background: var(--glass-bg);
    flex: 0 0 360px;
    min-width: 360px;
    min-width: 350px;
    flex: 0 0 auto;
    min-width: 350px;
    flex: 0 0 auto;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.class-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.class-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.class-title {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.class-datetime {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.class-trainer {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.class-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.class-capacity {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.capacity-bar {
    flex: 1;
    height: 8px;
    background: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.capacity-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--primary-color));
    transition: width var(--transition-base);
}

.capacity-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    white-space: nowrap;
}

.class-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.class-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.class-status.full {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.class-status.available {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

/* Check-in */
.checkin-search {
    margin-bottom: var(--spacing-xl);
}

.checkin-results {
    margin-top: var(--spacing-md);
    max-height: 400px;
    overflow-y: auto;
}

.checkin-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-base);
}

.checkin-item:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateX(5px);
}

.checkin-member-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.checkin-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.checkin-details h4 {
    margin-bottom: var(--spacing-xs);
}

.checkin-details p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.recent-checkins {
    padding: var(--spacing-xl);
}

.recent-checkins h3 {
    margin-bottom: var(--spacing-lg);
}

.checkin-log {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(15, 23, 42, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.checkin-log-time {
    color: var(--text-muted);
    font-size: 0.875rem;
    min-width: 80px;
}

.checkin-log-name {
    flex: 1;
}

.checkin-log-badge {
    padding: 0.25rem 0.75rem;
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

/* QR Scanner */
.scanner-container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

#qrReader {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.scan-result {
    padding: var(--spacing-lg);
    background: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-md);
    text-align: center;
}

.scan-success {
    color: var(--success-color);
    font-size: 1.25rem;
    font-weight: bold;
}

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

/* Trainers Grid */
.trainers-grid {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
}

.trainer-card {
    min-width: 300px;
    flex: 0 0 auto;
}

.trainer-card {
    background: var(--glass-bg);
    flex: 0 0 300px;
    min-width: 300px;
    flex: 0 0 300px;
    min-width: 300px;
    min-width: 300px;
    flex: 0 0 auto;
    min-width: 300px;
    flex: 0 0 auto;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.trainer-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.trainer-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: bold;
    margin: 0 auto var(--spacing-lg);
}

.trainer-name {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.trainer-specialization {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.trainer-contact {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.trainer-bio {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.trainer-certifications {
    background: rgba(15, 23, 42, 0.5);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.trainer-availability {
    margin-bottom: var(--spacing-lg);
}

.trainer-availability h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.availability-days {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.day-badge {
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.2);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.trainer-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 1000;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

.modal-content.large-modal {
    max-width: 900px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.close {
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-base);
    line-height: 1;
}

.close:hover {
    color: var(--danger-color);
}

.modal-body {
    margin-bottom: var(--spacing-xl);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
}

/* Payment Modal */
.payment-summary {
    background: rgba(15, 23, 42, 0.5);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.payment-summary h4 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

.summary-row.total {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--text-primary);
    border-top: 2px solid var(--glass-border);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
}

/* Member Details Modal */
.member-profile {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.profile-photo-section {
    text-align: center;
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.qr-code-display {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: inline-block;
}

.profile-info-section h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-item.full-width {
    grid-column: 1 / -1;
}

.info-item label {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.info-item span {
    color: var(--text-primary);
}

.membership-info {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--glass-border);
}

.membership-info h4 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.payment-history {
    margin-top: var(--spacing-xl);
}

.payment-history h4 {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

/* Photo Preview */
.photo-preview {
    margin-top: var(--spacing-md);
    text-align: center;
}

.photo-preview img {
    max-width: 200px;
    max-height: 200px;
    border-radius: var(--radius-md);
    border: 2px solid var(--glass-border);
}

/* Checkbox Group */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
}

.checkbox-group label:hover {
    background: rgba(59, 130, 246, 0.1);
}

.checkbox-group input[type="checkbox"] {
    cursor: pointer;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    z-index: 10000;
    animation: slideInRight 0.3s ease;
    max-width: 400px;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification.success {
    border-left: 4px solid var(--success-color);
}

.notification.error {
    border-left: 4px solid var(--danger-color);
}

.notification.warning {
    border-left: 4px solid var(--warning-color);
}

.notification.info {
    border-left: 4px solid var(--info-color);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: rgba(59, 130, 246, 0.5);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(59, 130, 246, 0.7);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

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

.text-right {
    text-align: right;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.p-0 {
    padding: 0;
}

.p-1 {
    padding: var(--spacing-sm);
}

.p-2 {
    padding: var(--spacing-md);
}

.p-3 {
    padding: var(--spacing-lg);
}

.p-4 {
    padding: var(--spacing-xl);
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gap-1 {
    gap: var(--spacing-sm);
}

.gap-2 {
    gap: var(--spacing-md);
}

.gap-3 {
    gap: var(--spacing-lg);
}

.w-full {
    width: 100%;
}

.text-primary {
    color: var(--primary-color);
}

.text-success {
    color: var(--success-color);
}

.text-danger {
    color: var(--danger-color);
}

.text-warning {
    color: var(--warning-color);
}

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

.font-bold {
    font-weight: bold;
}

.text-sm {
    font-size: 0.875rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}