* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg: #f3f4f6;
    --card-bg: #ffffff;
    --text: #1f2937;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

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

.google-btn {
    width: 100%;
    padding: 12px 20px;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s;
}

.google-btn:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.error-message {
    color: var(--danger);
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
    display: none;
}

.success-message {
    color: var(--success);
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
    padding: 12px;
    background: #d1fae5;
    border: 1px solid #10b981;
    border-radius: 8px;
}

/* Login Form */
.login-body form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.login-body .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.login-body .form-group label {
    font-weight: 500;
    color: var(--text);
    font-size: 14px;
}

.login-body .form-group input {
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.login-body .form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.login-body .btn-primary {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

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

.login-body .btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Loader */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loader {
    text-align: center;
    color: white;
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.loader p {
    font-size: 18px;
    font-weight: 500;
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 30px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.role-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    display: inline-block;
    margin-top: 10px;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-left-color: white;
}

.nav-item span {
    font-size: 20px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    margin-bottom: 15px;
}

.user-info p {
    margin: 5px 0;
}

.user-email {
    font-size: 12px;
    opacity: 0.8;
}

.logout-btn {
    width: 100%;
    padding: 10px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 30px;
}

.top-header {
    margin-bottom: 30px;
}

.top-header h1 {
    font-size: 2rem;
    color: var(--text);
}

.page-content {
    display: none;
}

.page-content.active {
    display: block;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.stat-icon {
    font-size: 3rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
}

.stat-info h3 {
    font-size: 2rem;
    color: var(--text);
    margin-bottom: 5px;
}

.stat-info p {
    color: var(--text-light);
    font-size: 14px;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.page-header h2 {
    font-size: 1.5rem;
    color: var(--text);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border: 2px solid var(--border);
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: var(--border);
}

/* Table */
.table-container {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

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

.data-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border);
}

.data-table tbody tr:hover {
    background: var(--bg);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.loading {
    text-align: center;
    color: var(--text-light);
    padding: 40px !important;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--text);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-content form {
    padding: 25px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text);
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-light);
    font-size: 12px;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 25px;
}

/* Attendance Tabs */
.attendance-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 10px 20px;
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

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

/* Settings Card */
.settings-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
}

/* Membership Card */
.card-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.membership-card {
    background: white;
    border-radius: 20px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.card-header h1 {
    font-size: 1.8rem;
}

.card-body {
    padding: 30px;
    text-align: center;
}

.card-qr {
    margin-bottom: 20px;
}

.card-qr canvas {
    max-width: 100%;
    height: auto;
}

.card-info h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text);
}

.card-id {
    color: var(--text-light);
    margin-bottom: 5px;
}

.card-id span {
    font-weight: 600;
    color: var(--primary);
}

.card-email {
    color: var(--text-light);
    font-size: 14px;
}

.card-footer {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.wallet-btn {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s;
}

.apple-wallet {
    background: #000;
    color: white;
    border-color: #000;
}

.apple-wallet:hover {
    background: #333;
}

.google-wallet {
    background: white;
    color: var(--text);
}

.google-wallet:hover {
    border-color: var(--primary);
}

/* Wallet Card Preview - Apple Wallet Style */
.wallet-card-preview-container {
    display: flex;
    justify-content: center;
    padding: 30px 20px;
    background: #f5f5f5;
    border-radius: 12px;
    margin-top: 20px;
}

.wallet-card-preview {
    width: 360px;
    height: 220px;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.1);
    background: linear-gradient(180deg, #667eea 0%, #5568d3 100%);
    color: white;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
}

/* Top section: Logo (left) and Thumbnail (right) */
.wallet-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px 16px 8px 16px;
    position: relative;
    z-index: 2;
}

.wallet-logo-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    height: 30px;
    min-width: 0;
}

.wallet-logo-text {
    font-size: 15px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wallet-thumbnail-wrapper {
    flex-shrink: 0;
    margin-left: 12px;
}

.wallet-thumbnail {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.wallet-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: rgba(255, 255, 255, 0.15);
}

.wallet-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Fields section */
.wallet-card-fields {
    padding: 0 16px;
    position: relative;
    z-index: 2;
    margin-top: 4px;
}

.wallet-field-row {
    margin-bottom: 8px;
}

.wallet-field-row.primary-field {
    margin-bottom: 10px;
}

.wallet-field-label {
    font-size: 10px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.65);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 2px;
    line-height: 1.2;
}

.wallet-field-value {
    font-size: 14px;
    font-weight: 600;
    color: white;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wallet-field-row.primary-field .wallet-field-value {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.wallet-field-row.secondary-field .wallet-field-value {
    font-size: 15px;
    font-weight: 600;
}

.wallet-field-row.auxiliary-field .wallet-field-value {
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

/* QR Code at bottom */
.wallet-card-qr {
    position: absolute;
    bottom: 12px;
    right: 16px;
    z-index: 2;
}

.wallet-qr-code {
    width: 80px;
    height: 80px;
    background: white;
    padding: 6px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.wallet-qr-code svg {
    display: block;
    width: 100%;
    height: 100%;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .data-table {
        font-size: 14px;
    }

    .data-table th,
    .data-table td {
        padding: 10px;
    }
}