/* Apple Human Interface Guidelines Inspired Design System */

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

:root {
    /* App Colors - exactly matching AppTheme.swift */
    --primary: #F59C00;
    --primary-dark: #D68600;
    --primary-light: #FFB333;
    --accent: #F59C00;
    --background: #FFFFFF;
    --surface: #F2F2F7;
    --elevated-surface: #FFFFFF;
    --separator: #D1D1D6;
    --separator-dark: #D1D1D6;
    --text-dark: #000000;
    --text-secondary: #86868B;
    --text-muted: #86868B;
    --on-accent: #000000;
    
    /* Apple HIG Typography Scale */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Inter', 'Segoe UI', Roboto, sans-serif;
    --font-large-title: 56px;
    --font-title1: 34px;
    --font-title2: 28px;
    --font-title3: 22px;
    --font-headline: 20px;
    --font-body: 17px;
    --font-callout: 16px;
    --font-subheadline: 15px;
    --font-footnote: 13px;
    --font-caption1: 12px;
    --font-caption2: 11px;
    
    /* Apple HIG Spacing System */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
    --spacing-4xl: 48px;
    --spacing-5xl: 64px;
    
    /* Apple HIG Border Radius */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-3xl: 24px;
    
    /* Apple HIG Transitions */
    --transition-instant: 0.2s;
    --transition-fast: 0.25s;
    --transition-medium: 0.3s;
    --transition-slow: 0.5s;
    
    /* Apple HIG Spring Animations */
    --spring-medium: cubic-bezier(0.4, 0.0, 0.2, 1);
    --spring-bouncy: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #000000;
        --surface: #1C1C1E;
        --elevated-surface: #2C2C2E;
        --separator: #38383A;
        --separator-dark: #38383A;
        --text-dark: #FFFFFF;
        --text-secondary: #98989D;
        --text-muted: #98989D;
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-3xl);
}

/* Navigation - Apple Style */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 0.5px solid var(--separator);
    z-index: 1000;
    transition: all var(--transition-medium) var(--spring-medium);
}

@media (prefers-color-scheme: dark) {
    .nav {
        background: rgba(0, 0, 0, 0.8);
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-3xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-logo {
    width: 32px;
    height: 32px;
}

.nav-brand-text {
    font-weight: 600;
    font-size: var(--font-headline);
    color: var(--text-dark);
    letter-spacing: -0.01em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-medium) var(--spring-medium);
}

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

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

.nav-cta {
    background: var(--primary);
    color: var(--on-accent);
    border: none;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-callout);
    cursor: pointer;
    transition: all var(--transition-fast) var(--spring-medium);
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 156, 0, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: all var(--transition-fast) ease;
}

/* Hero Section - Apple Style */
.hero {
    position: relative;
    padding: 180px var(--spacing-3xl) 120px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, var(--background) 0%, var(--surface) 100%);
    opacity: 0.5;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(245, 156, 0, 0.05) 0%, transparent 50%),
                      radial-gradient(circle at 80% 50%, rgba(245, 156, 0, 0.05) 0%, transparent 50%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5xl);
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--elevated-surface);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-2xl);
    font-size: var(--font-subheadline);
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--separator);
    width: fit-content;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

.hero-title {
    font-size: var(--font-large-title);
    font-weight: 700;
    line-height: 1.05;
    color: var(--text-dark);
    letter-spacing: -0.03em;
}

.hero-title-accent {
    color: var(--primary);
}

.hero-subtitle {
    font-size: var(--font-title3);
    color: var(--text-secondary);
    max-width: 520px;
    line-height: 1.6;
    letter-spacing: -0.01em;
}

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

.hero-trust {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-subheadline);
    color: var(--text-secondary);
}

.trust-icon {
    width: 20px;
    height: 20px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

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

/* Phone Mockup - Apple Style */
.phone-mockup {
    width: 300px;
    height: 620px;
    position: relative;
}

.phone-frame {
    width: 100%;
    height: 100%;
    background: var(--elevated-surface);
    border-radius: 44px;
    padding: 12px;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.25),
                0 30px 60px -30px rgba(0, 0, 0, 0.3),
                inset 0 0 0 2px rgba(255, 255, 255, 0.1);
    border: 1px solid var(--separator);
}

.phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 28px;
    background: var(--background);
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--background);
    border-radius: 36px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-header {
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-bottom: 0.5px solid var(--separator);
}

.app-logo {
    width: 24px;
    height: 24px;
}

.app-title {
    font-weight: 600;
    font-size: var(--font-subheadline);
    color: var(--text-dark);
}

.app-content {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    overflow-y: auto;
}

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

.app-section-title {
    font-size: var(--font-footnote);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.app-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--elevated-surface);
    border-radius: var(--radius-lg);
    border: 0.5px solid var(--separator);
    transition: all var(--transition-medium) var(--spring-medium);
}

.app-card.highlighted {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.app-card.highlighted .app-card-title,
.app-card.highlighted .app-card-time {
    color: white;
}

.app-card-icon {
    font-size: 24px;
}

.app-card-content {
    flex: 1;
}

.app-card-title {
    font-weight: 600;
    font-size: var(--font-subheadline);
    color: var(--text-dark);
}

.app-card-time {
    font-size: var(--font-caption1);
    color: var(--text-secondary);
}

.app-card-preview {
    font-size: var(--font-caption1);
    color: var(--text-secondary);
}

.app-card-badge {
    background: var(--primary);
    color: white;
    font-size: var(--font-caption2);
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Buttons - Apple Style */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: var(--font-callout);
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all var(--transition-fast) var(--spring-medium);
    font-family: var(--font-family);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.btn-primary {
    background: var(--primary);
    color: var(--on-accent);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 156, 0, 0.4);
}

.btn-secondary {
    background: var(--elevated-surface);
    color: var(--text-dark);
    border: 1px solid var(--separator);
}

.btn-secondary:hover {
    background: var(--surface);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-3xl);
    font-size: var(--font-body);
}

/* App Card - Enhanced */
.app-card {
    background: var(--elevated-surface);
    border-radius: var(--radius-xl);
    border: 0.5px solid var(--separator);
    transition: all var(--transition-medium) var(--spring-medium);
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Section Styling */
.section-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    font-size: var(--font-caption1);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-5xl);
}

.section-title {
    font-size: var(--font-title1);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-title3);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Key Features Section */
.key-features {
    padding: 120px var(--spacing-3xl);
    background: var(--background);
}

.features-showcase {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-5xl);
}

.feature-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5xl);
    align-items: center;
}

.feature-main:nth-child(even) {
    direction: rtl;
}

.feature-main:nth-child(even) > * {
    direction: ltr;
}

.feature-main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.feature-number {
    font-size: var(--font-large-title);
    font-weight: 800;
    color: var(--primary);
    opacity: 0.3;
    letter-spacing: -0.02em;
}

.feature-main-title {
    font-size: var(--font-title2);
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

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

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-callout);
    color: var(--text-dark);
}

.feature-check {
    color: var(--primary);
    font-weight: 700;
}

.feature-main-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.feature-icon-large {
    font-size: 120px;
    filter: drop-shadow(0 20px 40px rgba(245, 156, 0, 0.2));
}

/* Features Grid Section */
.features-grid-section {
    padding: 120px var(--spacing-3xl);
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.feature-card {
    padding: var(--spacing-3xl);
    text-align: left;
    transition: all var(--transition-medium) var(--spring-medium);
}

.feature-card-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
}

.feature-card-title {
    font-size: var(--font-headline);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.feature-card-text {
    font-size: var(--font-callout);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Registration Section */
.registration-section {
    padding: 120px var(--spacing-3xl);
    background: var(--surface);
}

.registration-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5xl);
    align-items: start;
}

.registration-form-wrapper {
    background: var(--elevated-surface);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-4xl);
    border: 0.5px solid var(--separator);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.registration-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.form-tabs {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--surface);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.form-tab {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-callout);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast) var(--spring-medium);
    font-family: var(--font-family);
}

.form-tab.active {
    background: var(--elevated-surface);
    color: var(--text-dark);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.form-content {
    display: none;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-content.active {
    display: flex;
}

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

.form-group label {
    font-weight: 500;
    font-size: var(--font-subheadline);
    color: var(--text-dark);
}

.form-group input {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--separator);
    border-radius: var(--radius-md);
    font-size: var(--font-body);
    font-family: var(--font-family);
    background: var(--background);
    color: var(--text-dark);
    transition: all var(--transition-fast) var(--spring-medium);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(245, 156, 0, 0.1);
}

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

.form-message {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-callout);
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(52, 199, 89, 0.1);
    color: #34C759;
    border: 1px solid #34C759;
}

.form-message.error {
    display: block;
    background: rgba(255, 59, 48, 0.1);
    color: #FF3B30;
    border: 1px solid #FF3B30;
}

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

.info-card {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-icon {
    font-size: 32px;
}

.info-card h3 {
    font-size: var(--font-headline);
    font-weight: 700;
    color: var(--text-dark);
}

.info-card p {
    font-size: var(--font-callout);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 120px var(--spacing-3xl);
    background: var(--background);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5xl);
    align-items: center;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: var(--font-title1);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: var(--font-callout);
    color: var(--text-secondary);
    font-weight: 500;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-card {
    padding: var(--spacing-4xl);
    max-width: 450px;
}

.about-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.about-card-icon {
    font-size: 40px;
}

.about-card h3 {
    font-size: var(--font-title3);
    font-weight: 700;
    color: var(--text-dark);
}

.about-card-text {
    font-size: var(--font-body);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-2xl);
}

.about-values {
    display: flex;
    gap: var(--spacing-lg);
}

.value-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.value-icon {
    font-size: 32px;
}

.value-text {
    font-size: var(--font-caption1);
    font-weight: 600;
    color: var(--text-secondary);
}

/* Testimonials Section */
.testimonials {
    padding: 120px var(--spacing-3xl);
    background: var(--surface);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.testimonial-card {
    padding: var(--spacing-3xl);
}

.testimonial-text {
    font-size: var(--font-body);
    color: var(--text-dark);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: var(--spacing-xl);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-callout);
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.author-name {
    font-weight: 600;
    font-size: var(--font-callout);
    color: var(--text-dark);
}

.author-role {
    font-size: var(--font-caption1);
    color: var(--text-secondary);
}

/* Download Section */
.download {
    position: relative;
    padding: 140px var(--spacing-3xl);
    background: var(--background);
    text-align: center;
    overflow: hidden;
}

.download-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.download-gradient {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--surface) 0%, var(--background) 100%);
}

.download-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    font-size: var(--font-caption1);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
}

.download-content {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.download-title {
    font-size: var(--font-title1);
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.download-subtitle {
    font-size: var(--font-title3);
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.download-info {
    display: flex;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
    justify-content: center;
}

.download-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-subheadline);
    color: var(--text-secondary);
}

.download-info-icon {
    font-size: 20px;
}

/* Footer - Apple Style */
.footer {
    background: var(--surface);
    padding: var(--spacing-5xl) var(--spacing-3xl) var(--spacing-3xl);
    border-top: 0.5px solid var(--separator);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-5xl);
    margin-bottom: var(--spacing-4xl);
}

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

.footer-tagline {
    font-size: var(--font-callout);
    color: var(--text-secondary);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--elevated-surface);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast) var(--spring-medium);
}

.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-links {
    display: flex;
    gap: var(--spacing-4xl);
    justify-content: flex-end;
    flex-wrap: wrap;
}

.footer-link-group h4 {
    font-size: var(--font-footnote);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-link-group a {
    display: block;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: var(--font-subheadline);
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast) ease;
}

.footer-link-group a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-3xl);
    border-top: 0.5px solid var(--separator);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    font-size: var(--font-caption1);
    color: var(--text-muted);
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: var(--font-caption1);
    transition: color var(--transition-fast) ease;
}

.footer-bottom-links a:hover {
    color: var(--primary);
}

/* Animations - Apple HIG Style */
@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bouncyPress {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.96);
    }
    100% {
        transform: scale(1);
    }
}

.fade-slide-in {
    opacity: 0;
    animation: fadeSlideIn 0.6s var(--spring-medium) forwards;
    animation-delay: var(--delay, 0s);
}

.bouncy-btn {
    transition: transform var(--transition-fast) var(--spring-medium);
}

.bouncy-btn:hover {
    transform: scale(1.02);
}

.bouncy-btn:active {
    transform: scale(0.96);
}

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s var(--spring-medium);
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-subtitle {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .feature-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .feature-main:nth-child(even) {
        direction: ltr;
    }
    
    .feature-main-content {
        align-items: center;
    }
    
    .registration-container {
        grid-template-columns: 1fr;
    }
    
    .registration-info {
        order: -1;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-title1);
    }
    
    .phone-mockup {
        width: 260px;
        height: 540px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-2xl);
    }
    
    .footer-bottom-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .hero {
        padding: 140px var(--spacing-lg) 80px;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: var(--font-body);
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .phone-mockup {
        width: 220px;
        height: 460px;
    }
    
    .section-title {
        font-size: var(--font-title2);
    }
    
    .download-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .about-values {
        flex-direction: column;
    }
}

/* Performance and Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .fade-slide-in {
        opacity: 1;
        transform: none;
    }
    
    .phone-mockup {
        animation: none;
    }
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .nav,
    .hero-visual,
    .download {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}