/* ============================================
   ReviewGuard - Design System & Global Styles
   Energetic Purple Theme with Light/Dark Mode
   8px Grid System
   ============================================ */

/* ---- CSS Variables ---- */
:root {
    /* Purple Palette */
    --primary-50: #f3e8ff;
    --primary-100: #e9d5ff;
    --primary-200: #d8b4fe;
    --primary-300: #c084fc;
    --primary-400: #a855f7;
    --primary-500: #8b5cf6;
    --primary-600: #7c3aed;
    --primary-700: #6d28d9;
    --primary-800: #5b21b6;
    --primary-900: #4c1d95;

    /* Accent Colors */
    --success: #22c55e;
    --success-light: #dcfce7;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    /* Light Mode (default) */
    --bg-body: #f5f3ff;
    --bg-surface: #ffffff;
    --bg-surface-hover: #faf5ff;
    --bg-sidebar: #ffffff;
    --bg-input: #ffffff;
    --bg-card: #ffffff;

    --text-primary: #1e1b4b;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;

    --border-color: #e5e7eb;
    --border-light: #f3f4f6;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --shadow-purple: 0 4px 14px rgba(124, 58, 237, 0.25);

    /* Spacing (8px grid) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
}

/* ---- Dark Mode ---- */
[data-theme="dark"] {
    --bg-body: #0f0a1e;
    --bg-surface: #1a1333;
    --bg-surface-hover: #231a42;
    --bg-sidebar: #150f2a;
    --bg-input: #1a1333;
    --bg-card: #1a1333;

    --text-primary: #f0ecff;
    --text-secondary: #a5a0c2;
    --text-muted: #6b6590;
    --text-inverse: #0f0a1e;

    --border-color: #2d2455;
    --border-light: #231a42;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.45);
    --shadow-purple: 0 4px 14px rgba(139, 92, 246, 0.35);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-700);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ---- Accessibility: Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* ============================================
   Alerts / Flash Messages
   ============================================ */
.alert {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    animation: slideDown 0.3s ease;
    position: relative;
}

.alert-success {
    background: var(--success-light);
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: var(--info-light);
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    font-size: var(--text-xl);
    cursor: pointer;
    opacity: 0.5;
    line-height: 1;
    padding: 0 var(--space-1);
    color: inherit;
}

.alert-close:hover {
    opacity: 1;
}

@keyframes slideDown {
    from { transform: translateY(-16px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    line-height: 1.5;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: var(--text-inverse);
    box-shadow: var(--shadow-purple);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.35);
    color: var(--text-inverse);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-surface-hover);
    border-color: var(--primary-300);
}

.btn-success {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #16a34a, #15803d);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-600);
}

.btn-outline:hover {
    background: var(--primary-600);
    color: white;
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-3) var(--space-8);
    font-size: var(--text-base);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ============================================
   Form Elements
   ============================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.form-label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

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

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.input-icon-wrapper {
    position: relative;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: var(--text-base);
    pointer-events: none;
}

.input-icon-wrapper .form-control {
    padding-left: var(--space-10);
}

.form-text {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
    overflow: hidden;
}

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

.card-body {
    padding: var(--space-6);
}

.card-header {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.card-title {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ============================================
   Stat Cards
   ============================================ */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: var(--space-5) var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stat-icon.blue { background: var(--info-light); color: var(--info); }
.stat-icon.orange { background: #fff7ed; color: #f97316; }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-icon.purple { background: var(--primary-50); color: var(--primary-600); }

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Tables
   ============================================ */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

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

thead th {
    text-align: left;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
    cursor: pointer;
}

tbody td {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
    vertical-align: middle;
}

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

tbody tr:hover {
    background: var(--bg-surface-hover);
}

/* ============================================
   Badges / Status Tags
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-positive, .badge-success {
    background: var(--success-light);
    color: #166534;
}

.badge-negative, .badge-danger {
    background: var(--danger-light);
    color: #991b1b;
}

.badge-pending, .badge-warning {
    background: var(--warning-light);
    color: #92400e;
}

.badge-info {
    background: var(--info-light);
    color: #1e40af;
}

.badge-purple {
    background: var(--primary-50);
    color: var(--primary-700);
}

/* ============================================
   Star Ratings
   ============================================ */
.star { 
    font-size: 1.1rem; 
    cursor: default;
}
.star.filled { color: #f59e0b; }
.star.empty { color: var(--border-color); }

.star-rating-input {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
    gap: var(--space-1);
}

.star-rating-input input {
    display: none;
}

.star-rating-input label {
    font-size: 2.5rem;
    color: var(--border-color);
    cursor: pointer;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.star-rating-input label:hover,
.star-rating-input label:hover ~ label,
.star-rating-input input:checked ~ label {
    color: #f59e0b;
}

.star-rating-input label:hover {
    transform: scale(1.15);
}

/* ============================================
   Avatar
   ============================================ */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    color: white;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    flex-shrink: 0;
    overflow: hidden;
}

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

.avatar-sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 80px; height: 80px; font-size: var(--text-2xl); }

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    font-size: var(--text-sm);
}

.pagination-info {
    color: var(--text-secondary);
}

.pagination-links {
    display: flex;
    gap: var(--space-1);
}

.pagination-links a,
.pagination-links span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    font-weight: 500;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.pagination-links a:hover {
    background: var(--primary-50);
    border-color: var(--primary-300);
    color: var(--primary-700);
}

.pagination-links .active {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-base);
    overflow-y: auto;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: var(--text-sm);
}

.sidebar-brand-text {
    font-size: var(--text-lg);
    font-weight: 800;
    color: var(--text-primary);
}

.sidebar-brand-text span {
    color: var(--primary-600);
}

.sidebar-nav {
    padding: var(--space-4) var(--space-3);
    flex: 1;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    text-decoration: none;
}

.sidebar-nav-item:hover {
    background: var(--primary-50);
    color: var(--primary-700);
}

.sidebar-nav-item.active {
    background: linear-gradient(135deg, var(--primary-50), rgba(139, 92, 246, 0.12));
    color: var(--primary-700);
    font-weight: 600;
}

[data-theme="dark"] .sidebar-nav-item:hover {
    background: rgba(139, 92, 246, 0.15);
}

[data-theme="dark"] .sidebar-nav-item.active {
    background: rgba(139, 92, 246, 0.2);
}

.sidebar-nav-icon {
    width: 20px;
    text-align: center;
    font-size: var(--text-base);
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--space-4) var(--space-3);
    border-top: 1px solid var(--border-color);
}

.sidebar-cta {
    background: linear-gradient(135deg, var(--primary-50), rgba(139, 92, 246, 0.08));
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-3);
    text-align: center;
}

.sidebar-cta h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.sidebar-cta a {
    font-size: var(--text-sm);
    color: var(--primary-600);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Bar */
.topbar {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-3) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--primary-50);
    color: var(--primary-600);
    border-color: var(--primary-300);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.topbar-user:hover {
    background: var(--bg-surface-hover);
}

.topbar-user-info {
    text-align: right;
}

.topbar-user-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

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

.refer-btn {
    background: linear-gradient(135deg, #f97316, #ea580c);
    color: white;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
}

.refer-btn:hover {
    box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
    transform: translateY(-1px);
    color: white;
}

/* Content Area */
.content-area {
    padding: var(--space-6);
    flex: 1;
}

.page-header {
    margin-bottom: var(--space-6);
}

.page-header h1 {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--text-primary);
}

.page-header p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-top: var(--space-1);
}

/* ============================================
   Dashboard Grid
   ============================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

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

/* ============================================
   Chart Container
   ============================================ */
.chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

/* ============================================
   QR Card Preview
   ============================================ */
.qr-preview {
    background: linear-gradient(135deg, #1a1333 0%, #2d1a5e 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    color: white;
    max-width: 320px;
}

.qr-preview h3 {
    font-size: var(--text-lg);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
}

.qr-preview p {
    font-size: var(--text-xs);
    opacity: 0.8;
    margin-bottom: var(--space-5);
    line-height: 1.5;
}

.qr-preview .qr-image {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: inline-block;
    margin-bottom: var(--space-5);
}

.qr-preview .qr-image img {
    width: 200px;
    height: 200px;
}

.qr-preview .google-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--text-lg);
    font-weight: 700;
}

.qr-preview .google-stars {
    color: #f59e0b;
    font-size: var(--text-lg);
}

.qr-preview .powered-by {
    font-size: var(--text-xs);
    opacity: 0.6;
    margin-top: var(--space-4);
}

/* ============================================
   Profile Section
   ============================================ */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-8);
    align-items: start;
}

/* ============================================
   Plans Grid
   ============================================ */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
    max-width: 900px;
    margin: 0 auto;
}

.plan-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    position: relative;
    transition: all var(--transition-base);
    text-align: center;
}

.plan-card:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.plan-card.featured {
    border-color: var(--primary-500);
    box-shadow: var(--shadow-purple);
}

.plan-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    margin-bottom: var(--space-4);
    border: 1px solid;
}

.plan-badge.popular {
    background: var(--success-light);
    color: #166534;
    border-color: #bbf7d0;
}

.plan-badge.best-value {
    background: var(--primary-50);
    color: var(--primary-700);
    border-color: var(--primary-200);
}

.plan-price {
    margin-bottom: var(--space-6);
}

.plan-price .amount {
    font-size: var(--text-4xl);
    font-weight: 900;
    color: var(--text-primary);
}

.plan-price .period {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.plan-price .discount {
    display: inline-block;
    background: var(--success-light);
    color: #166534;
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 700;
    margin-left: var(--space-2);
}

.plan-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--space-8);
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.plan-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
}

.plan-current {
    background: var(--border-light);
    color: var(--text-muted);
    padding: var(--space-3) var(--space-8);
    border-radius: var(--radius-md);
    font-weight: 600;
    border: none;
    cursor: default;
    width: 100%;
}

/* ============================================
   Referral Section
   ============================================ */
.referral-code-box {
    background: var(--bg-surface-hover);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.referral-code-box h4 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    margin-bottom: var(--space-3);
}

.referral-link-copy {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.referral-link-copy input {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: var(--text-sm);
}

.referral-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    text-align: center;
}

.referral-step {
    padding: var(--space-4);
}

.referral-step .step-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-3);
    background: var(--primary-50);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.referral-step p {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.referral-step .reward {
    color: var(--primary-600);
    font-weight: 700;
}

/* ============================================
   Review Form (Customer-facing)
   ============================================ */
.review-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-50), #ede9fe, #f5f3ff);
    padding: var(--space-6);
}

[data-theme="dark"] .review-page {
    background: linear-gradient(135deg, #0f0a1e, #1a1333, #150f2a);
}

.review-form-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    max-width: 560px;
    width: 100%;
    overflow: hidden;
}

.review-form-header {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
    padding: var(--space-8) var(--space-6);
    text-align: center;
    color: white;
}

.review-form-header h1 {
    font-size: var(--text-2xl);
    font-weight: 800;
    margin-bottom: var(--space-2);
}

.review-form-header p {
    opacity: 0.85;
    font-size: var(--text-sm);
}

.review-form-body {
    padding: var(--space-8) var(--space-6);
}

.review-form-body .rating-section {
    text-align: center;
    margin-bottom: var(--space-6);
}

.review-form-body .rating-section h3 {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

/* Thank You Page */
.thankyou-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--primary-50), #ede9fe);
}

.thankyou-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-12) var(--space-8);
    max-width: 480px;
}

.thankyou-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    background: var(--success-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.thankyou-card h1 {
    font-size: var(--text-3xl);
    font-weight: 800;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.thankyou-card p {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.7;
}

/* ============================================
   Auth Pages
   ============================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f0a1e, #1a1333, #2d1a5e);
    padding: var(--space-6);
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15), transparent 70%);
    pointer-events: none;
}

.auth-page::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -15%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.1), transparent 70%);
    pointer-events: none;
}

.auth-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    max-width: 440px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.auth-card .auth-logo {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-card .auth-logo h2 {
    font-size: var(--text-2xl);
    font-weight: 800;
    color: white;
}

.auth-card .auth-logo h2 span {
    color: var(--primary-400);
}

.auth-card .auth-logo p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-sm);
    margin-top: var(--space-2);
}

.auth-card .form-label {
    color: rgba(255, 255, 255, 0.8);
}

.auth-card .form-control {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    color: white;
}

.auth-card .form-control::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.auth-card .form-control:focus {
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.auth-card .auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-sm);
}

.auth-card .auth-footer a {
    color: var(--primary-400);
    font-weight: 600;
}

/* ============================================
   Loader / Spinner
   ============================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

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

/* ============================================
   Overlay
   ============================================ */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
}

.overlay.active {
    display: block;
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-6);
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

.empty-state p {
    font-size: var(--text-sm);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-primary-color { color: var(--primary-600); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.fw-bold { font-weight: 700; }
.fw-semibold { font-weight: 600; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.hidden { display: none !important; }

/* ============================================
   Settings Page Grid
   ============================================ */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

/* ============================================
   Auth Pages (Login & Register)
   ============================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: radial-gradient(circle at 50% 20%, rgba(124, 58, 237, 0.18), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.12), transparent 40%),
                var(--bg-body);
    position: relative;
    overflow-x: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    top: -200px;
    left: -200px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15), transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.25), 0 0 50px rgba(124, 58, 237, 0.1);
    position: relative;
    backdrop-filter: blur(16px);
    z-index: 1;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.auth-card.register-card {
    max-width: 580px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: var(--space-2);
}

.auth-logo span {
    color: var(--primary-500);
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-top: var(--space-1);
}

.auth-demo-box {
    background: rgba(124, 58, 237, 0.08);
    border: 1px dashed rgba(124, 58, 237, 0.35);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
}

.auth-demo-text {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    line-height: 1.4;
}

.auth-demo-text strong {
    color: var(--primary-600);
    display: block;
    font-size: var(--text-sm);
    margin-bottom: 2px;
}

.auth-demo-btn {
    background: var(--primary-600);
    color: #ffffff;
    border: none;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.auth-demo-btn:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.35);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-control {
    padding-right: 44px;
    width: 100%;
}

.password-toggle-btn {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: color var(--transition-fast);
}

.password-toggle-btn:hover {
    color: var(--primary-500);
}

.password-strength-meter {
    height: 4px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-top: 6px;
    position: relative;
}

.password-strength-bar {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease, background-color 0.3s ease;
    border-radius: var(--radius-full);
}

.password-strength-text {
    font-size: 0.7rem;
    margin-top: 4px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-color);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--primary-500);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-footer a:hover {
    color: var(--primary-700);
    text-decoration: underline;
}

.auth-theme-toggle {
    position: absolute;
    top: var(--space-5);
    right: var(--space-5);
    z-index: 10;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .profile-grid {
        grid-template-columns: 1fr;
    }
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .hamburger {
        display: flex;
    }

    .content-area {
        padding: var(--space-4);
    }

    .stat-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .topbar {
        padding: var(--space-3) var(--space-4);
    }

    .topbar-user-info {
        display: none;
    }

    .referral-steps {
        grid-template-columns: 1fr;
    }

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

    .auth-card {
        padding: var(--space-6);
    }
}

@media (max-width: 480px) {
    .stat-cards {
        grid-template-columns: 1fr;
    }

    .referral-link-copy {
        flex-direction: column;
    }
}