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

:root {
    /* App Colors */
    --bg-primary: #121212;
    --bg-secondary: #1C1C1C;
    --bg-card: #1C1C1C;
    --text-primary: #FFFFFF;
    --text-secondary: #E5E5E5;
    --text-tertiary: #B0B0B0;
    --accent-orange: #ffcf00;
    --accent-red: #ED4305;
    --border-light: #2C2C2C;
    --border-medium: #3A3A3A;
    --shadow: rgba(0, 0, 0, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

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

.logo-text {
    background: linear-gradient(135deg, var(--accent-orange), #ED9005);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: var(--spacing-xs) 0;
}

.nav-links a:hover {
    color: var(--accent-orange);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

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

.mobile-menu {
    display: none;
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-md);
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 999;
}

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

.mobile-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background: var(--border-light);
    color: var(--accent-orange);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--accent-orange);
    color: var(--bg-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid var(--accent-orange);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-orange);
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: transparent;
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--border-medium);
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    transform: translateY(-2px);
}

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

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0;
    margin-top: 73px;
}

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

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

.phone-mockup {
    width: 300px;
    height: 600px;
    background: var(--bg-secondary);
    border-radius: 2rem;
    padding: 0.75rem;
    box-shadow: 0 20px 60px var(--shadow);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 0.75rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: var(--bg-primary);
    border-radius: 1rem;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    border-radius: 1.5rem;
    overflow: hidden;
}

.app-preview {
    padding: var(--spacing-lg);
    padding-top: var(--spacing-xl);
}

.preview-header {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.preview-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-red));
    border-radius: 50%;
}

.preview-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    justify-content: center;
}

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

.preview-line.short {
    width: 60%;
}

.preview-books {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.preview-book {
    aspect-ratio: 2/3;
    background: linear-gradient(135deg, var(--border-medium), var(--border-light));
    border-radius: var(--radius-sm);
    animation: pulse 2s ease-in-out infinite;
}

.preview-book:nth-child(2) {
    animation-delay: 0.3s;
}

.preview-book:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

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

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--accent-orange);
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 207, 0, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
}

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

.about-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-orange);
    margin-bottom: var(--spacing-xs);
}

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

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about-feature {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.about-feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.about-feature-content h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.about-feature-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Download Section */
.download {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
    text-align: center;
}

.download-content {
    max-width: 800px;
    margin: 0 auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.store-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bg-card);
    border: 2px solid var(--border-medium);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition);
    min-width: 200px;
}

.store-button:hover {
    border-color: var(--accent-orange);
    transform: translateY(-4px);
}

.store-button svg {
    color: var(--accent-orange);
}

.store-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-align: left;
}

.store-name {
    font-size: 1.25rem;
    font-weight: 700;
    text-align: left;
}

.download-note {
    color: var(--text-tertiary);
    margin-top: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-tagline {
    color: var(--text-tertiary);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    margin-bottom: var(--spacing-md);
    color: var(--accent-orange);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-column a:hover {
    color: var(--accent-orange);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .phone-mockup {
        transform: scale(0.8);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .store-button {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .btn-large {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }
    
    .phone-mockup {
        transform: scale(0.7);
    }
}

/* Account Deletion Page Styles */
.step-container {
    margin: var(--spacing-lg) 0;
}

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-orange);
}

.step-number {
    background: var(--accent-orange);
    color: var(--bg-primary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.step-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.step-content ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.step-content ul li {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.warning-box {
    background: rgba(237, 67, 5, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    color: var(--text-primary);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.data-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
}

.data-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
}

.data-item ul {
    margin-left: var(--spacing-sm);
}

.data-item ul li {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.timeline {
    margin: var(--spacing-lg) 0;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 12px;
    top: 32px;
    width: 2px;
    height: calc(100% + var(--spacing-md));
    background: var(--border-medium);
}

.timeline-marker {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent-orange);
    margin-right: var(--spacing-md);
    flex-shrink: 0;
    border: 3px solid var(--bg-primary);
}

.timeline-content h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
    font-weight: 600;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.consideration-box {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--accent-orange);
}

.consideration-box h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
    font-weight: 600;
}

.consideration-box p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.alternatives {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.alternative {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
}

.alternative h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
    font-weight: 600;
}

.alternative p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9rem;
}

.help-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.help-option {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
}

.help-option h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
    font-weight: 600;
}

.help-option p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xs);
}

.help-option a {
    color: var(--accent-orange);
    text-decoration: none;
}

.help-option a:hover {
    text-decoration: underline;
}

.help-note {
    font-size: 0.85rem !important;
    color: var(--text-tertiary) !important;
    font-style: italic;
}

.legal-list {
    margin-left: var(--spacing-md);
}

.legal-list li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.legal-list a {
    color: var(--accent-orange);
    text-decoration: none;
}

.legal-list a:hover {
    text-decoration: underline;
}

.last-updated {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    color: var(--text-tertiary);
    font-size: 0.9rem;
    font-style: italic;
}

/* Responsive adjustments for account deletion page */
@media (max-width: 768px) {
    .step {
        flex-direction: column;
        text-align: left;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: var(--spacing-sm);
        align-self: flex-start;
    }
    
    .data-grid {
        grid-template-columns: 1fr;
    }
    
    .alternatives {
        grid-template-columns: 1fr;
    }
    
    .help-options {
        grid-template-columns: 1fr;
    }
}