/**
 * Swim ProHub 360 - Modern UI Stylesheet
 * A professional, modern design system
 *
 * Copyright (c) 2024-2026 HumanLP
 */

/* ============================================
   CSS VARIABLES - Design Tokens
   ============================================ */
:root {
    /* Colors - Dark Theme (Default) */
    --color-bg-primary: #0f0f1a;
    --color-bg-secondary: #1a1a2e;
    --color-bg-tertiary: #16213e;
    --color-bg-card: #1e1e32;
    --color-bg-card-hover: #252542;

    /* Accent Colors */
    --color-accent-primary: #00d4ff;
    --color-accent-secondary: #7c3aed;
    --color-accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --color-accent-glow: rgba(0, 212, 255, 0.3);

    /* Status Colors */
    --color-success: #10b981;
    --color-success-bg: rgba(16, 185, 129, 0.1);
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-error: #ef4444;
    --color-error-bg: rgba(239, 68, 68, 0.1);
    --color-info: #3b82f6;
    --color-info-bg: rgba(59, 130, 246, 0.1);

    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0aec0;
    --color-text-muted: #6b7280;
    --color-text-accent: #00d4ff;

    /* Border Colors */
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(0, 212, 255, 0.3);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-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;
    --text-5xl: 3rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px var(--color-accent-glow);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-tooltip: 1070;
    --z-toast: 1090;
}

/* ============================================
   BASE STYLES
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at top left, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(124, 58, 237, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
}

h1 { font-size: var(--text-4xl); margin-bottom: var(--space-6); }
h2 { font-size: var(--text-3xl); margin-bottom: var(--space-5); }
h3 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }
h4 { font-size: var(--text-xl); margin-bottom: var(--space-3); }
h5 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
h6 { font-size: var(--text-base); margin-bottom: var(--space-2); }

p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

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

a:hover {
    color: var(--color-text-primary);
    text-decoration: underline;
}

.text-gradient {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ============================================
   LAYOUT
   ============================================ */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding: var(--space-8);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-sm { max-width: 640px; }
.container-md { max-width: 768px; }
.container-lg { max-width: 1024px; }
.container-xl { max-width: 1280px; }

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .grid-cols-2, .grid-cols-3, .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    padding: var(--space-4) var(--space-6);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--color-accent-primary);
    text-decoration: none;
}

.navbar-brand-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    list-style: none;
}

.nav-link {
    padding: var(--space-2) var(--space-4);
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: var(--text-sm);
}

.nav-link:hover {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    text-decoration: none;
}

.nav-link.active {
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-accent-primary);
}

.nav-link-icon {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

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

.card-glass {
    background: rgba(30, 30, 50, 0.6);
    backdrop-filter: blur(10px);
}

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

.card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: var(--space-4) 0;
}

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

/* Feature Card */
.feature-card {
    text-align: center;
    padding: var(--space-8);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    margin: 0 auto var(--space-4);
}

.feature-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.feature-description {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

/* Stat Card */
.stat-card {
    text-align: center;
    padding: var(--space-6);
}

.stat-value {
    font-size: var(--text-4xl);
    font-weight: 700;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    margin-top: var(--space-2);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
}

.stat-change.positive {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.stat-change.negative {
    background: var(--color-error-bg);
    color: var(--color-error);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

/* Secondary Button */
.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--color-accent-primary);
    border: 1px solid var(--color-accent-primary);
}

.btn-outline:hover:not(:disabled) {
    background: rgba(0, 212, 255, 0.1);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn-xl {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}

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

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

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

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

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

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

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

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

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.form-check-input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent-primary);
}

/* ============================================
   UPLOAD ZONE
   ============================================ */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-12) var(--space-8);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    background: var(--color-bg-tertiary);
}

.upload-zone:hover {
    border-color: var(--color-accent-primary);
    background: rgba(0, 212, 255, 0.05);
}

.upload-zone.drag-over {
    border-color: var(--color-accent-primary);
    background: rgba(0, 212, 255, 0.1);
    transform: scale(1.02);
}

.upload-zone.has-file {
    border-color: var(--color-success);
    border-style: solid;
    background: var(--color-success-bg);
}

.upload-zone-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.7;
}

.upload-zone-text {
    font-size: var(--text-lg);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.upload-zone-hint {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.upload-zone input[type="file"] {
    display: none;
}

/* ============================================
   TABS
   ============================================ */
.tabs {
    display: flex;
    gap: var(--space-1);
    background: var(--color-bg-tertiary);
    padding: var(--space-1);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
}

.tab-btn {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: var(--text-sm);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.tab-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-card);
}

.tab-btn.active {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.3);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

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

/* ============================================
   PROGRESS
   ============================================ */
.progress {
    width: 100%;
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-lg {
    height: 12px;
}

.progress-xl {
    height: 20px;
}

/* Circular Progress */
.progress-circle {
    position: relative;
    width: 120px;
    height: 120px;
}

.progress-circle svg {
    transform: rotate(-90deg);
}

.progress-circle-bg {
    fill: none;
    stroke: var(--color-bg-tertiary);
    stroke-width: 8;
}

.progress-circle-fill {
    fill: none;
    stroke: url(#gradient);
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dashoffset var(--transition-slow);
}

.progress-circle-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--text-2xl);
    font-weight: 700;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge-primary {
    background: rgba(0, 212, 255, 0.2);
    color: var(--color-accent-primary);
}

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

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-error {
    background: var(--color-error-bg);
    color: var(--color-error);
}

.badge-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.alert-icon {
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.alert-message {
    font-size: var(--text-sm);
    margin: 0;
}

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

.alert-warning {
    background: var(--color-warning-bg);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: var(--color-warning);
}

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

.alert-info {
    background: var(--color-info-bg);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--color-info);
}

/* ============================================
   TABLES
   ============================================ */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.table th,
.table td {
    padding: var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    background: var(--color-bg-tertiary);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    font-size: var(--text-xs);
    letter-spacing: 0.05em;
}

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

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

/* ============================================
   MODAL
   ============================================ */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal-backdrop.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

/* ============================================
   TOOLTIP
   ============================================ */
.tooltip {
    position: relative;
    display: inline-flex;
}

.tooltip-content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    white-space: normal;
    max-width: 280px;
    min-width: 150px;
    text-align: left;
    line-height: 1.4;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
}

.tooltip:hover .tooltip-content {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -6px;
    border-width: 6px;
    border-style: solid;
    border-color: var(--color-bg-card) transparent transparent transparent;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease;
    min-width: 300px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-icon {
    font-size: var(--text-xl);
}

.toast-message {
    flex: 1;
    font-size: var(--text-sm);
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-1);
}

/* ============================================
   CODE / CONSOLE
   ============================================ */
.code-block {
    background: #0d1117;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    color: #e6edf3;
}

.console {
    background: #0d1117;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    overflow: hidden;
}

.console-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid var(--color-border);
}

.console-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.console-dot.red { background: #ff5f56; }
.console-dot.yellow { background: #ffbd2e; }
.console-dot.green { background: #27c93f; }

.console-body {
    padding: var(--space-4);
    max-height: 300px;
    overflow-y: auto;
}

.console-line {
    color: #3fb950;
    margin-bottom: var(--space-1);
}

.console-line.error {
    color: #f85149;
}

.console-line.warning {
    color: #d29922;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--space-8);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    position: relative;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-8);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-6);
}

.empty-state-icon {
    font-size: 64px;
    opacity: 0.5;
    margin-bottom: var(--space-4);
}

.empty-state-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    color: var(--color-text-muted);
    max-width: 400px;
    margin: 0 auto var(--space-6);
}

/* ============================================
   SKELETON LOADING
   ============================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 25%,
        var(--color-bg-card-hover) 50%,
        var(--color-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--space-2);
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: var(--space-3);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

/* ============================================
   UTILITIES
   ============================================ */
.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

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

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    :root {
        --text-4xl: 1.875rem;
        --text-5xl: 2.25rem;
    }

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

    .navbar-nav {
        display: none;
    }

    .hero {
        padding: var(--space-10) var(--space-4);
    }

    .hero-title {
        font-size: var(--text-3xl);
    }

    .hero-subtitle {
        font-size: var(--text-base);
    }

    .tabs {
        flex-direction: column;
    }

    .modal {
        margin: var(--space-4);
        max-width: calc(100% - var(--space-8));
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    body {
        background: white;
        color: black;
    }

    .navbar,
    .btn,
    .toast-container {
        display: none;
    }

    .card {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}

/* ============================================
   LIGHT THEME
   ============================================ */
[data-theme="light"] {
    --color-bg-primary: #f8fafc;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f1f5f9;
    --color-bg-card: #ffffff;
    --color-bg-card-hover: #f8fafc;

    --color-text-primary: #1a1a2e;
    --color-text-secondary: #4a5568;
    --color-text-muted: #6b7280;
    --color-text-accent: #0891b2;

    --color-border: rgba(0, 0, 0, 0.1);
    --color-border-hover: rgba(0, 212, 255, 0.4);

    --color-accent-glow: rgba(0, 212, 255, 0.2);

    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] body::before {
    background:
        radial-gradient(ellipse at top left, rgba(0, 212, 255, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(124, 58, 237, 0.03) 0%, transparent 50%);
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .code-block,
[data-theme="light"] .console {
    background: #1e293b;
}

/* ============================================
   THEME TOGGLE
   ============================================ */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--text-lg);
}

.theme-toggle:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

[data-theme="light"] .theme-toggle .icon-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun,
:root:not([data-theme]) .theme-toggle .icon-sun {
    display: none;
}

/* ============================================
   ENHANCED CHAT WIDGET
   ============================================ */
.chat-widget {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 380px;
    max-width: calc(100vw - var(--space-8));
    background: rgba(30, 30, 50, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(0, 212, 255, 0.1);
    z-index: var(--z-modal);
    overflow: hidden;
    transition: all var(--transition-base);
}

[data-theme="light"] .chat-widget {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(0, 0, 0, 0.1);
}

.chat-header {
    background: var(--color-accent-gradient);
    color: white;
    padding: var(--space-4) var(--space-5);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    user-select: none;
}

.chat-header:hover {
    filter: brightness(1.1);
}

.chat-header-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.chat-toggle-icon {
    transition: transform var(--transition-fast);
}

.chat-widget.expanded .chat-toggle-icon {
    transform: rotate(180deg);
}

.chat-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.chat-widget.expanded .chat-body {
    max-height: 450px;
}

.chat-messages {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
    max-height: 320px;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.chat-message {
    max-width: 85%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    line-height: 1.5;
    animation: messageSlideIn 0.3s ease;
}

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

.chat-message.user {
    background: var(--color-accent-gradient);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: var(--radius-sm);
}

.chat-message.assistant {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    border-bottom-left-radius: var(--radius-sm);
}

.chat-message p {
    margin: 0 0 var(--space-2) 0;
    color: inherit;
}

.chat-message p:last-child {
    margin-bottom: 0;
}

.chat-message ul,
.chat-message ol {
    margin: var(--space-2) 0;
    padding-left: var(--space-4);
}

.chat-message li {
    margin-bottom: var(--space-1);
}

.chat-input-container {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

.chat-input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.chat-input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

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

.chat-send-btn {
    padding: var(--space-3) var(--space-5);
    background: var(--color-accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-send-btn:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   PAGE TRANSITIONS & ANIMATIONS
   ============================================ */
.page-enter {
    animation: fadeSlideIn 0.3s ease;
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Card hover animations */
.card {
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

/* Button press feedback */
.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0) scale(0.98);
}

/* Link hover effects */
a {
    transition: color var(--transition-fast), opacity var(--transition-fast);
}

/* Smooth scrolling for all elements */
* {
    scroll-behavior: smooth;
}

/* ============================================
   ENHANCED SKELETON LOADING
   ============================================ */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    animation: shimmer 1.5s infinite linear;
}

.skeleton-card {
    height: 200px;
    border-radius: var(--radius-xl);
}

.skeleton-button {
    height: 44px;
    width: 120px;
    border-radius: var(--radius-lg);
}

.skeleton-circle {
    border-radius: 50%;
}

/* ============================================
   AUTH FORM STYLES
   ============================================ */
.auth-container {
    max-width: 480px;
    margin: var(--space-8) auto;
    padding: 0 var(--space-4);
}

.auth-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-xl);
}

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

.auth-header h1 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2);
}

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

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

.auth-footer a {
    color: var(--color-accent-primary);
    font-weight: 500;
}

/* ============================================
   ADMIN STYLES
   ============================================ */
.admin-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--space-6);
    min-height: calc(100vh - 200px);
}

@media (max-width: 1024px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }
}

.admin-sidebar {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    height: fit-content;
    position: sticky;
    top: calc(var(--space-20, 80px) + var(--space-4));
}

.admin-nav {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

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

.admin-nav-item:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    text-decoration: none;
}

.admin-nav-item.active {
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-accent-primary);
}

.admin-nav-icon {
    font-size: var(--text-lg);
}

.admin-content {
    flex: 1;
}

.admin-stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-base);
}

.admin-stat-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.admin-stat-value {
    font-size: var(--text-4xl);
    font-weight: 700;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.admin-stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   PROFILE STYLES
   ============================================ */
.profile-header {
    background: var(--color-accent-gradient);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    margin-bottom: var(--space-6);
    color: white;
    position: relative;
    overflow: hidden;
}

.profile-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.profile-avatar {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
}

.profile-name {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.profile-role {
    opacity: 0.9;
    font-size: var(--text-sm);
}

.profile-stats {
    display: flex;
    gap: var(--space-8);
    margin-top: var(--space-6);
}

.profile-stat {
    text-align: center;
}

.profile-stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
}

.profile-stat-label {
    font-size: var(--text-xs);
    opacity: 0.8;
    text-transform: uppercase;
}

/* ============================================
   RESULTS PAGE STYLES
   ============================================ */
.results-grid {
    display: grid;
    gap: var(--space-6);
}

.metrics-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.metrics-card-header {
    background: var(--color-accent-gradient);
    color: white;
    padding: var(--space-5) var(--space-6);
}

.metrics-card-header h3 {
    margin: 0;
    font-size: var(--text-lg);
}

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

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border);
}

.metric-row:last-child {
    border-bottom: none;
}

.metric-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.metric-value {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-accent-primary);
}

.metric-unit {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: normal;
    margin-left: var(--space-1);
}

.metric-category {
    background: var(--color-bg-tertiary);
    padding: var(--space-3) var(--space-4);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* AI Insights Card */
.insights-card {
    background: var(--color-accent-gradient);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    color: white;
    margin-bottom: var(--space-6);
}

.insights-card h3 {
    margin: 0 0 var(--space-4) 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.insights-card p {
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.7;
    margin: 0;
}

/* Help tooltip */
.help-tip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: rgba(0, 212, 255, 0.2);
    color: var(--color-accent-primary);
    border-radius: 50%;
    font-size: 11px;
    font-weight: 600;
    cursor: help;
    margin-left: var(--space-2);
    transition: all var(--transition-fast);
}

.help-tip:hover {
    background: var(--color-accent-primary);
    color: white;
}

/* ============================================
   COMPARISON PAGE STYLES
   ============================================ */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

.video-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
}

.video-box video {
    width: 100%;
    border-radius: var(--radius-lg);
    background: #000;
}

.score-card {
    background: var(--color-accent-gradient);
    color: white;
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-bottom: var(--space-6);
}

.score-value {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin: var(--space-4) 0;
}

.recommendation-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.recommendation-card.high-priority {
    border-left-color: var(--color-error);
}

.recommendation-card.medium-priority {
    border-left-color: var(--color-warning);
}

.recommendation-card.info {
    border-left-color: var(--color-success);
}

.drill-box {
    background: var(--color-bg-tertiary);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-top: var(--space-3);
    font-style: italic;
    color: var(--color-text-secondary);
}

/* ============================================
   DATA TABLES (Enhanced)
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: var(--color-bg-tertiary);
    padding: var(--space-4);
    text-align: left;
    font-weight: 600;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
}

.data-table td {
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

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

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

/* Status indicators */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.status-badge.active,
.status-badge.complete {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.status-badge.pending,
.status-badge.processing {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.status-badge.error,
.status-badge.inactive {
    background: var(--color-error-bg);
    color: var(--color-error);
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.section-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin: 0;
}

.section-subtitle {
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

/* ============================================
   RESOURCE & INFO CARDS
   ============================================ */
.resource-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
    transition: all var(--transition-base);
}

.resource-card:hover {
    transform: translateX(4px);
    border-color: var(--color-border-hover);
}

.resource-card h4 {
    margin: 0 0 var(--space-2) 0;
}

.resource-card h4 a {
    color: var(--color-accent-primary);
}

.resource-card p {
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.6;
}

.tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-3);
}

.tag {
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-accent-primary);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
}

/* Info/Highlight boxes */
.info-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
}

.info-box h4 {
    color: var(--color-accent-primary);
    margin: 0 0 var(--space-3) 0;
}

.highlight-box {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin: var(--space-4) 0;
}

.warning-box {
    background: var(--color-warning-bg);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin: var(--space-4) 0;
}

.warning-box h4 {
    color: var(--color-warning);
    margin: 0 0 var(--space-3) 0;
}

/* Data flow visualization */
.data-flow {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
    margin: var(--space-6) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.flow-step {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-weight: 500;
}

.flow-arrow {
    color: var(--color-accent-primary);
    font-size: var(--text-xl);
}

/* Tech stack cards */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.tech-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.tech-card h4 {
    margin: 0 0 var(--space-2) 0;
}

.tech-name {
    color: var(--color-accent-primary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-3);
}

/* Privacy list items */
.privacy-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-3);
}

.privacy-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.privacy-item .icon {
    color: var(--color-success);
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.privacy-item .text {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.5;
}

/* ============================================
   LEVEL/BENEFIT CARDS
   ============================================ */
.level-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-4);
}

.level-card h4 {
    margin: 0 0 var(--space-4) 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-lg);
}

.level-icon {
    font-size: var(--text-2xl);
}

.benefits {
    color: var(--color-text-secondary);
    line-height: 1.8;
    padding-left: var(--space-4);
}

.benefits li {
    margin-bottom: var(--space-2);
}

/* ============================================
   METRIC GUIDE CARDS
   ============================================ */
.metric-guide {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-4);
}

.metric-guide-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.metric-guide-card h4 {
    color: var(--color-accent-primary);
    margin: 0 0 var(--space-3) 0;
}

.metric-guide-card .description {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.metric-ranges {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-3);
}

.range-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
}

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

.range-item .value {
    color: var(--color-success);
    font-weight: 500;
}