/* ===================================
   HyperPlanner Landing Page Styles
   Glassy, Warm, Reactive
   =================================== */

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

:root {
    /* Colors */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;

    /* Neutrals */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(255, 255, 255, 0.08);

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.6);

    /* Blur */
    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 24px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

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

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 10px;
    border: 2px solid var(--bg-secondary);
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--secondary), var(--primary));
    border-color: var(--bg-primary);
}

::-webkit-scrollbar-thumb:active {
    background: var(--primary);
}

/* Firefox Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-secondary);
}

/* Background Effects */
.bg-gradient {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at 30% 20%,
        rgba(99, 102, 241, 0.15) 0%,
        transparent 50%
    ),
    radial-gradient(
        circle at 70% 80%,
        rgba(236, 72, 153, 0.12) 0%,
        transparent 50%
    ),
    radial-gradient(
        circle at 50% 50%,
        rgba(245, 158, 11, 0.08) 0%,
        transparent 70%
    );
    pointer-events: none;
    z-index: -2;
    transition: transform 0.3s ease-out;
}

.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 100px 100px;
    pointer-events: none;
    z-index: -1;
}

/* Cursor Effects - Background Glow */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(
        circle,
        rgba(99, 102, 241, 0.15) 0%,
        rgba(236, 72, 153, 0.1) 30%,
        rgba(245, 158, 11, 0.05) 50%,
        transparent 70%
    );
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 1;
    opacity: 1;
    border-radius: 50%;
    transition: width 0.3s ease, height 0.3s ease;
}

.cursor-trail {
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.cursor-trail canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(15, 15, 26, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link.demo-link {
    color: var(--primary-light);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(var(--blur-sm));
}

.nav-btn:hover {
    background: var(--glass-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2xl) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
    gap: var(--spacing-2xl);
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(var(--blur-sm));
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-light), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 8s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.hero-features {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

/* Hero Visual */
.hero-visual {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-window {
    width: 100%;
    max-width: 600px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(var(--blur-md));
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.window-header {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--glass-border);
}

.window-dots span:nth-child(1) { background: #ff5f57; }
.window-dots span:nth-child(2) { background: #febc2e; }
.window-dots span:nth-child(3) { background: #28c840; }

.window-title {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.window-content {
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    min-height: 300px;
}

.preview-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.panel-header {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

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

.preview-item {
    height: 40px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    animation: itemPulse 2s ease-in-out infinite;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
    gap: 8px;
}

.preview-item.active {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.4);
    padding: 8px 12px;
    animation: none;
    opacity: 1;
    transform: scale(1.02);
}

.preview-item:nth-child(1) { animation-delay: 0s; }
.preview-item:nth-child(2) { animation-delay: 0.3s; }
.preview-item:nth-child(3) { animation-delay: 0.6s; }

@keyframes itemPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Buttons */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    backdrop-filter: blur(var(--blur-sm));
}

.btn-secondary:hover {
    background: var(--glass-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* Section Styles */
.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Features Grid */
.features-section {
    padding: var(--spacing-2xl) 0;
}

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

.feature-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(var(--blur-md));
    transition: all var(--transition-base);
    cursor: pointer;
}

.feature-card:hover {
    background: var(--glass-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon-large {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.feature-list li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding-left: var(--spacing-md);
    position: relative;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-light);
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-2xl) 0;
    background: rgba(255, 255, 255, 0.02);
}

.how-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.how-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(var(--blur-md));
    transition: all var(--transition-base);
}

.how-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.2);
}

.how-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.how-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

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

.how-detail h4 {
    color: var(--text-primary);
    font-size: 1.125rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.how-detail ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.how-detail li {
    margin-bottom: var(--spacing-xs);
}

.code-example {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-family: 'Courier New', monospace;
    color: var(--primary-light);
}

.automation-example {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    flex-wrap: wrap;
}

.auto-chip {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.auto-arrow {
    color: var(--primary-light);
    font-size: 1.5rem;
}

/* Customize Section */
.customize-section {
    padding: var(--spacing-2xl) 0;
}

.customize-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.customize-card {
    text-align: center;
}

.customize-preview {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(var(--blur-md));
    height: 200px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
}

.customize-preview:hover {
    transform: scale(1.05);
}

.preview-bar {
    height: 12px;
    background: var(--glass-border);
    border-radius: var(--radius-sm);
}

.preview-content {
    flex: 1;
    display: flex;
    gap: var(--spacing-sm);
}

.preview-block {
    flex: 1;
    border-radius: var(--radius-sm);
}

.preview-block.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
}

.preview-block.dark {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.preview-block.neon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(236, 72, 153, 0.3));
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.glassy-preview { background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1)); }
.dark-preview { background: #000; }
.neon-preview { background: linear-gradient(135deg, #1a1a2e, #0f0f1a); }

.customize-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.customize-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.customize-cta {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--blur-md));
}

.customize-cta p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Demo Section */
.demo-section {
    padding: var(--spacing-2xl) 0;
    background: rgba(255, 255, 255, 0.02);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.demo-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.demo-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.demo-locked {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

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

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

.demo-unlock {
    font-weight: 600;
    color: var(--success);
}

.demo-cta {
    margin-top: var(--spacing-xl);
}

.demo-note {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.demo-window {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(var(--blur-md));
}

.demo-header {
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.demo-features-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.demo-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.demo-feature.unlocked {
    color: var(--success);
}

.demo-feature.locked {
    color: var(--text-tertiary);
}

.demo-feature .check,
.demo-feature .lock {
    font-size: 1.25rem;
}

/* Final CTA */
.final-cta {
    padding: var(--spacing-2xl);
    text-align: center;
}

.final-cta h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.final-cta p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-brand p {
    color: var(--text-tertiary);
}

.footer-links {
    display: contents;
}

.footer-col h4 {
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    max-width: 1400px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    transition: color var(--transition-fast);
    z-index: 1;
}

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

.modal-header {
    padding: var(--spacing-xl);
    text-align: center;
}

.modal-header h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
}

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

.modal-body {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    background: var(--glass);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.auth-tab.active {
    background: var(--primary);
    color: white;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.auth-form.hidden {
    display: none;
}

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

.form-group label {
    font-weight: 600;
    font-size: 0.875rem;
}

.form-group input {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-footer {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.form-footer a {
    color: var(--primary-light);
    text-decoration: none;
}

.form-footer a:hover {
    text-decoration: underline;
}

.auth-divider {
    position: relative;
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--glass-border);
}

.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }

.auth-divider span {
    background: var(--bg-secondary);
    padding: 0 var(--spacing-md);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.auth-providers {
    display: flex;
    gap: var(--spacing-md);
}

.provider-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.provider-btn:hover {
    background: var(--glass-hover);
    border-color: rgba(255, 255, 255, 0.2);
}

.provider-btn.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.provider-btn.loading::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    right: 12px;
}

/* Password Input Wrapper */
.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    padding-right: 40px;
}

.password-toggle {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 40px;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

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

.password-toggle .eye-icon,
.password-toggle .eye-off-icon {
    transition: opacity var(--transition-fast);
}

/* Form Help Text */
.form-help {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-help.error {
    color: #ef4444;
}

.form-help.success {
    color: var(--success);
}

.help-icon {
    font-size: 1rem;
    line-height: 1;
}

.help-text {
    flex: 1;
}

/* Password Strength Indicator */
.password-strength {
    margin-top: var(--spacing-sm);
}

.strength-bar {
    height: 4px;
    background: var(--glass);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all var(--transition-base);
    border-radius: 999px;
}

.strength-fill.weak {
    width: 33%;
    background: #ef4444;
}

.strength-fill.medium {
    width: 66%;
    background: #f59e0b;
}

.strength-fill.strong {
    width: 100%;
    background: var(--success);
}

.strength-text {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.strength-text span {
    font-weight: 600;
}

.strength-text.weak span {
    color: #ef4444;
}

.strength-text.medium span {
    color: #f59e0b;
}

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

/* Form Actions */
.form-actions {
    margin-top: var(--spacing-lg);
}

/* Button Loading State */
.btn-loader {
    display: none;
    align-items: center;
    justify-content: center;
}

.btn-loader .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .btn-loader {
    display: inline-flex;
}

/* Input States */
.form-group input.error {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}

.form-group input.success {
    border-color: var(--success) !important;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-features {
        justify-content: center;
    }

    .demo-content {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

    .cta-buttons {
        flex-direction: column;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }

    .window-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }

    .section-container {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .customize-controls {
        left: 50%;
        transform: translateX(-50%);
        flex-direction: column;
        padding: var(--spacing-sm);
    }

    .customize-controls.hidden {
        transform: translate(-50%, 150%);
    }

    .sidebar-toggle {
        font-size: 0.75rem;
        padding: var(--spacing-sm) var(--spacing-xs);
    }

    .glass-sidebar {
        width: 250px;
    }

    .welcome-title {
        font-size: 2rem;
    }

    .welcome-subtitle {
        font-size: 1rem;
    }

    .welcome-options {
        grid-template-columns: 1fr;
    }
}

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

/* Glass Sidebar Widget */
.glass-sidebar {
    position: fixed;
    right: -320px;
    top: 50%;
    transform: translateY(-50%);
    width: 300px;
    max-height: 80vh;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    backdrop-filter: blur(var(--blur-md));
    padding: var(--spacing-lg);
    z-index: 999;
    transition: right var(--transition-base);
    overflow-y: auto;
}

.glass-sidebar.active {
    right: 0;
}

.sidebar-toggle {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    backdrop-filter: blur(var(--blur-md));
    padding: var(--spacing-md) var(--spacing-xs);
    cursor: pointer;
    z-index: 1000;
    transition: all var(--transition-fast);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.sidebar-toggle:hover {
    background: var(--glass-hover);
    padding-left: var(--spacing-sm);
}

.sidebar-section {
    margin-bottom: var(--spacing-lg);
}

.sidebar-section h3 {
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.sidebar-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.sidebar-link:hover {
    background: var(--glass-hover);
    color: var(--text-primary);
    padding-left: var(--spacing-md);
}

/* Customization Controls */
.customize-controls {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--blur-md));
    padding: var(--spacing-md);
    z-index: 998;
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    transition: all var(--transition-base);
}

.customize-controls.hidden {
    transform: translateY(150%);
}

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

.control-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.control-input {
    display: flex;
    gap: var(--spacing-xs);
}

.color-swatch {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--glass-border);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.color-swatch:hover {
    transform: scale(1.1);
    border-color: var(--primary);
}

.color-swatch.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
    transform: scale(1.05);
}

.color-swatch.active::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 16px;
    font-weight: bold;
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
}

.slider-control {
    width: 100px;
}

.slider-control input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
}

/* Welcome Screen */
.welcome-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.welcome-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.welcome-container {
    max-width: 600px;
    width: 90%;
    text-align: center;
    animation: welcomeFadeIn 0.6s ease;
}

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

.welcome-step {
    display: none;
}

.welcome-step.active {
    display: block;
    animation: stepFadeIn 0.4s ease;
}

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

.welcome-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.welcome-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.welcome-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.welcome-question {
    margin-bottom: var(--spacing-xl);
}

.welcome-question h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.welcome-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.welcome-option {
    padding: var(--spacing-lg);
    background: var(--glass);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(var(--blur-sm));
}

.welcome-option:hover {
    background: var(--glass-hover);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.welcome-option.selected {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary);
}

.option-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.option-label {
    font-weight: 600;
    font-size: 0.875rem;
}

.welcome-nav {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.welcome-progress {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    margin-top: var(--spacing-md);
}

.progress-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--glass-border);
    transition: all var(--transition-base);
}

.progress-dot.active {
    background: var(--primary);
    width: 24px;
    border-radius: 999px;
}

/* Print Styles */
@media print {
    .nav,
    .cursor-glow,
    .cursor-trail,
    .bg-gradient,
    .bg-mesh,
    .modal,
    .glass-sidebar,
    .sidebar-toggle,
    .customize-controls,
    .welcome-screen {
        display: none !important;
    }
}