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

:root {
    --color-primary: #1a2b4d;
    --color-primary-dark: #0f1a2e;
    --color-secondary: #ff6b35;
    --color-accent: #ff8c5a;
    --color-white: #ffffff;
    --color-light-gray: #f5f5f5;
    --color-gray: #e0e0e0;
    --color-dark-gray: #666666;
    --color-text: #333333;
    --color-text-light: #888888;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 3rem;
    
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
    /* Mobile devices */
    button,
    .btn-primary,
    .btn-secondary,
    a {
        -webkit-tap-highlight-color: rgba(255, 107, 53, 0.2);
        touch-action: manipulation;
    }
    
    .btn-primary,
    .btn-secondary {
        min-height: 44px; /* Minimum touch target size */
    }
}

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

/* Header */
.header {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -0.5px;
}

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

.nav a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    opacity: 0.9;
}

.nav a:hover {
    opacity: 1;
    color: var(--color-secondary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: var(--color-white);
    border-radius: 3px;
    transition: var(--transition);
    transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

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

/* Buttons */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 43, 77, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    min-height: 90vh;
    display: flex;
    align-items: flex-start;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
    padding-top: var(--spacing-md);
}

.hero-logo-wrapper {
    margin-bottom: var(--spacing-md);
}

.hero-app-icon {
    width: 80px;
    height: 80px;
    background: var(--color-secondary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.hero-app-icon svg {
    width: 50px;
    height: 50px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -1px;
}

.hero-tagline {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
    color: var(--color-white);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
    max-width: 90%;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    align-self: flex-start;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 280px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.iphone-screenshot {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    object-fit: contain;
}

.image-placeholder {
    width: 100%;
    min-height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.6);
    padding: var(--spacing-lg);
    text-align: center;
}

.image-placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.5;
}

.image-placeholder p {
    font-size: 1rem;
    margin: 0;
}

.placeholder-hint {
    font-size: 0.85rem;
    opacity: 0.7;
    font-family: monospace;
}

.app-interface {
    height: 100%;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 20px;
}

.app-header {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.app-header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.app-logo-small {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-white);
}

.app-tagline-small {
    font-size: 0.75rem;
    opacity: 0.7;
    color: var(--color-white);
}

.app-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: relative;
    padding-bottom: 80px;
}

.sos-button-large {
    width: 200px;
    height: 200px;
    border-radius: 20px;
    background: #3b82f6;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
    animation: pulse 2s infinite;
    color: var(--color-white);
}

.sos-heart-icon {
    width: 60px;
    height: 60px;
    color: var(--color-white);
}

.sos-heart-icon svg {
    width: 100%;
    height: 100%;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.help-requests {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.app-instruction {
    font-size: 0.85rem;
    text-align: center;
    opacity: 0.7;
    color: var(--color-white);
    padding: 0 20px;
    line-height: 1.4;
}

.app-footer-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-secondary);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 0 0 20px 20px;
}

.footer-heart-icon {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

.footer-heart-icon svg {
    width: 100%;
    height: 100%;
}

.footer-count {
    font-weight: 600;
    color: var(--color-white);
}

.footer-text {
    color: var(--color-white);
    font-size: 0.9rem;
}

.help-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.help-item-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-white);
}

.help-item-icon svg {
    width: 100%;
    height: 100%;
}

/* Stats Section */
/* Main Features Section */
.main-features {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    background: var(--color-light-gray);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.feature-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-secondary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.feature-card-icon svg {
    width: 50px;
    height: 50px;
}

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

.feature-card p {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 1rem;
}

.stats {
    background: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    color: var(--color-secondary);
}

.stat-icon svg {
    width: 100%;
    height: 100%;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-description {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Problem Section */
/* Comparison Section */
.comparison {
    padding: var(--spacing-xl) 0;
    background: var(--color-light-gray);
}

.comparison-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-column {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
}

.comparison-benefits {
    background: rgba(34, 197, 94, 0.08);
}

.comparison-problems {
    background: rgba(239, 68, 68, 0.08);
}

.comparison-column-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    text-align: center;
}

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

.comparison-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: start;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.comparison-benefits .comparison-item {
    border-left: 3px solid #22c55e;
}

.comparison-problems .comparison-item {
    border-left: 3px solid #ef4444;
}

.comparison-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.comparison-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4px;
}

.check-icon {
    background: #22c55e;
    color: var(--color-white);
}

.cross-icon {
    background: #ef4444;
    color: var(--color-white);
}

.comparison-icon svg {
    width: 20px;
    height: 20px;
}

.comparison-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
    font-weight: 600;
}

.comparison-item p {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Solution Section */
.solution {
    padding: var(--spacing-xl) 0;
    background: var(--color-light-gray);
}

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

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

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

.feature-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    color: var(--color-secondary);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.feature-content p {
    color: var(--color-text-light);
    line-height: 1.8;
}

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

.app-mockup-card {
    background: var(--color-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    color: var(--color-white);
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.mockup-header {
    margin-bottom: var(--spacing-md);
}

.mockup-title {
    font-size: 1.2rem;
    font-weight: 600;
}

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

.help-type {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: 10px;
}

.help-type-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--color-white);
}

.help-type-icon svg {
    width: 100%;
    height: 100%;
}

.location-info {
    font-size: 0.9rem;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 8px;
}

.location-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--color-white);
    opacity: 0.9;
}

.location-icon svg {
    width: 100%;
    height: 100%;
}

.anonymity-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    width: fit-content;
}

.anonymity-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--color-white);
}

.anonymity-icon svg {
    width: 100%;
    height: 100%;
}

.mockup-button {
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    margin-top: var(--spacing-sm);
    transition: var(--transition);
}

.mockup-button:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}

.time-indicator {
    font-size: 0.85rem;
    opacity: 0.7;
    text-align: center;
    margin-top: var(--spacing-xs);
}

/* Use Cases Section */
.use-cases {
    padding: var(--spacing-xl) 0;
    background: var(--color-light-gray);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.use-case-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    border: 2px solid var(--color-gray);
    transition: var(--transition);
}

.use-case-card:hover {
    border-color: var(--color-secondary);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.use-case-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-sm);
    color: var(--color-secondary);
}

.use-case-icon svg {
    width: 100%;
    height: 100%;
}

.use-case-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.use-case-card p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* How It Works Steps (within Main Features) */
.how-it-works-steps {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-gray);
}

.steps-subtitle {
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-secondary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-sm);
}

.step-content h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.step-content p {
    color: var(--color-text-light);
}

/* Target Audience */
.target-audience {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

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

.audience-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.audience-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.audience-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-primary);
}

.audience-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--color-secondary);
}

.audience-icon svg {
    width: 100%;
    height: 100%;
}

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

.community-illustration {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--color-white);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.community-icon {
    width: 120px;
    height: 120px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.community-icon svg {
    width: 100%;
    height: 100%;
}

.community-text {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Final CTA */
.final-cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    text-align: center;
}

.cta-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-section h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-section ul li a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.7;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a svg {
    width: 100%;
    height: 100%;
}

.social-links a:hover {
    color: var(--color-secondary);
    transform: translateY(-3px);
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-visual {
        order: -1;
        margin-bottom: var(--spacing-md);
    }
    
    .comparison-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .solution-content,
    .audience-content {
        grid-template-columns: 1fr;
    }
    
    .stats-grid,
    .use-cases-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-primary-dark);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1000;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .nav a {
        padding: var(--spacing-sm);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        font-size: 1.1rem;
    }
    
    .nav a:last-child {
        border-bottom: none;
    }
    
    .header-content {
        padding: 0 var(--spacing-sm);
    }
    
    .header-actions {
        gap: var(--spacing-xs);
        margin-left: auto;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .header-actions .btn-secondary {
        display: none;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .hero {
        padding: var(--spacing-md) 0;
        min-height: auto;
    }
    
    .hero-content {
        padding-top: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .hero-tagline {
        font-size: 1.3rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.6;
        max-width: 100%;
    }
    
    .hero-app-icon {
        width: 60px;
        height: 60px;
    }
    
    .hero-app-icon svg {
        width: 35px;
        height: 35px;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-md);
    }
    
    .section-subtitle {
        font-size: 1.1rem;
        padding: 0 var(--spacing-sm);
    }
    
    .hero-image-wrapper {
        max-width: 280px;
        margin: 0 auto;
    }
    
    .main-features,
    .stats,
    .comparison,
    .use-cases,
    .target-audience,
    .final-cta {
        padding: var(--spacing-md) 0;
    }
    
    .stats-grid,
    .use-cases-grid,
    .steps,
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .feature-card,
    .stat-card,
    .use-case-card {
        padding: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .comparison-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .comparison-column {
        margin-bottom: var(--spacing-md);
        padding: var(--spacing-sm);
    }
    
    .comparison-item {
        padding: var(--spacing-sm);
    }
    
    .audience-content {
        gap: var(--spacing-md);
    }
    
    .audience-list {
        grid-template-columns: 1fr;
    }
    
    .community-illustration {
        min-height: 200px;
        padding: var(--spacing-md);
    }
    
    .community-icon {
        width: 80px;
        height: 80px;
    }
    
    .community-text {
        font-size: 1.2rem;
    }
    
    .cta-title {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .cta-subtitle {
        font-size: 1.1rem;
        padding: 0 var(--spacing-sm);
    }
    
    .steps-subtitle {
        font-size: 1.5rem;
    }
    
    .how-it-works-steps {
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header {
        padding: var(--spacing-xs) 0;
    }
    
    .header-content {
        padding: 0 var(--spacing-sm);
    }
    
    .header-actions .btn-primary {
        font-size: 0.8rem;
        padding: 0.6rem 1rem;
        min-height: 44px;
    }
    
    .mobile-menu-toggle {
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    /* Touch-friendly buttons */
    .btn-primary,
    .btn-secondary,
    .btn-large {
        min-height: 44px;
        padding: 0.75rem 1.25rem;
    }
    
    /* Better spacing for touch */
    .nav a {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .hero {
        padding: var(--spacing-sm) 0;
        min-height: auto;
    }
    
    .hero-content {
        gap: var(--spacing-sm);
        padding-top: var(--spacing-xs);
    }
    
    .hero-logo-wrapper {
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-app-icon {
        width: 50px;
        height: 50px;
        border-radius: 15px;
    }
    
    .hero-app-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .hero-tagline {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-sm);
    }
    
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
        width: 100%;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: var(--spacing-sm);
        padding: 0 var(--spacing-xs);
    }
    
    .section-subtitle {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-image-wrapper {
        max-width: 240px;
    }
    
    .iphone-screenshot {
        border-radius: 25px;
    }
    
    .main-features,
    .stats,
    .comparison,
    .use-cases,
    .target-audience,
    .final-cta {
        padding: var(--spacing-sm) 0;
    }
    
    .features-grid,
    .stats-grid,
    .use-cases-grid {
        gap: var(--spacing-sm);
    }
    
    .feature-card,
    .stat-card,
    .use-case-card {
        padding: var(--spacing-sm);
    }
    
    .feature-card h3,
    .use-case-card h3 {
        font-size: 1.2rem;
    }
    
    .feature-card p,
    .use-case-card p {
        font-size: 0.9rem;
    }
    
    .feature-card-icon,
    .use-case-icon {
        width: 48px;
        height: 48px;
    }
    
    .feature-card-icon svg,
    .use-case-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    .stat-description {
        font-size: 0.85rem;
    }
    
    .comparison-column {
        padding: var(--spacing-sm);
    }
    
    .comparison-column-title {
        font-size: 1.3rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .comparison-item {
        padding: var(--spacing-sm);
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .comparison-icon {
        width: 28px;
        height: 28px;
        margin-top: 0;
    }
    
    .comparison-icon svg {
        width: 16px;
        height: 16px;
    }
    
    .comparison-item h4 {
        font-size: 1.1rem;
        margin-bottom: 0.25rem;
    }
    
    .comparison-item p {
        font-size: 0.9rem;
    }
    
    .steps {
        gap: var(--spacing-sm);
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .step-content h4 {
        font-size: 1.1rem;
    }
    
    .step-content p {
        font-size: 0.9rem;
    }
    
    .steps-subtitle {
        font-size: 1.3rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .audience-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .audience-item {
        font-size: 1rem;
    }
    
    .audience-icon {
        width: 20px;
        height: 20px;
    }
    
    .community-illustration {
        min-height: 180px;
        padding: var(--spacing-sm);
    }
    
    .community-icon {
        width: 60px;
        height: 60px;
        margin-bottom: var(--spacing-xs);
    }
    
    .community-text {
        font-size: 1rem;
    }
    
    .cta-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .cta-subtitle {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .footer {
        padding: var(--spacing-sm) 0 var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .footer-section {
        margin-bottom: var(--spacing-sm);
    }
    
    .footer-logo {
        font-size: 1.3rem;
    }
    
    .footer-tagline {
        font-size: 0.85rem;
    }
    
    .footer-section h4 {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .footer-section ul li a {
        font-size: 0.85rem;
    }
    
    .footer-bottom {
        padding-top: var(--spacing-sm);
    }
    
    .footer-bottom p {
        font-size: 0.85rem;
    }
    
    .social-links a {
        width: 32px;
        height: 32px;
        min-width: 32px;
        min-height: 32px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
        min-width: 48px;
        min-height: 48px;
    }
    
    /* Better text readability on mobile */
    p, li, span {
        -webkit-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }
    
    /* Improve scrolling performance */
    * {
        -webkit-overflow-scrolling: touch;
    }
    
    /* Better spacing for touch targets */
    .feature-card,
    .stat-card,
    .use-case-card,
    .comparison-item {
        margin-bottom: var(--spacing-sm);
    }
    
    /* Optimize images for mobile */
    img {
        max-width: 100%;
        height: auto;
    }
}

/* Chatbot Styles */
.chatbot-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    font-family: var(--font-family);
}

.chatbot-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
    transition: var(--transition);
    position: relative;
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(255, 107, 53, 0.5);
}

.chatbot-toggle svg {
    width: 28px;
    height: 28px;
}

.chatbot-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.chatbot-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    max-width: calc(100vw - 40px);
    height: 500px;
    max-height: calc(100vh - 120px);
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(20px) scale(0.9);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chatbot-container.active .chatbot-window {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

.chatbot-header {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chatbot-avatar {
    width: 40px;
    height: 40px;
    background: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chatbot-avatar svg {
    width: 24px;
    height: 24px;
    color: var(--color-white);
}

.chatbot-header h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

.chatbot-status {
    font-size: 0.75rem;
    opacity: 0.9;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.chatbot-status::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    display: inline-block;
}

.chatbot-close {
    background: transparent;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: var(--transition);
}

.chatbot-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.chatbot-close svg {
    width: 20px;
    height: 20px;
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    background: var(--color-light-gray);
}

.chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--color-gray);
    border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: var(--color-dark-gray);
}

.message {
    display: flex;
    animation: messageSlideIn 0.3s ease;
}

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

.user-message {
    justify-content: flex-end;
}

.bot-message {
    justify-content: flex-start;
}

.message-content {
    max-width: 75%;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    word-wrap: break-word;
}

.user-message .message-content {
    background: var(--color-secondary);
    color: var(--color-white);
    border-bottom-right-radius: 4px;
}

.bot-message .message-content {
    background: var(--color-white);
    color: var(--color-text);
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.message-content p {
    margin: 0;
    line-height: 1.5;
    font-size: 0.9rem;
}

.chatbot-input-container {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--color-white);
    border-top: 1px solid var(--color-gray);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

#chatbotInput {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

#chatbotInput:focus {
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

#chatbotSend {
    background: var(--color-secondary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

#chatbotSend:hover {
    background: var(--color-accent);
    transform: scale(1.05);
}

#chatbotSend:active {
    transform: scale(0.95);
}

#chatbotSend svg {
    width: 20px;
    height: 20px;
}

#chatbotSend:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

#chatbotInput:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Typing Indicator */
.typing-indicator .message-content {
    background: var(--color-white);
    padding: 0.75rem 1rem;
    min-width: 60px;
}

.typing-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-dark-gray);
    animation: typing 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typing {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Responsive Chatbot */
@media (max-width: 768px) {
    .chatbot-container {
        bottom: 15px;
        right: 15px;
    }
    
    .chatbot-toggle {
        width: 55px;
        height: 55px;
    }
    
    .chatbot-toggle svg {
        width: 24px;
        height: 24px;
    }
    
    .chatbot-window {
        width: calc(100vw - 30px);
        right: 0;
        height: calc(100vh - 90px);
        max-height: 75vh;
        bottom: 75px;
    }
    
    .chatbot-header {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .chatbot-avatar {
        width: 35px;
        height: 35px;
    }
    
    .chatbot-avatar svg {
        width: 20px;
        height: 20px;
    }
    
    .chatbot-header h3 {
        font-size: 0.9rem;
    }
    
    .chatbot-status {
        font-size: 0.7rem;
    }
    
    .chatbot-messages {
        padding: var(--spacing-xs);
    }
    
    .message-content {
        max-width: 80%;
        padding: 0.6rem 0.875rem;
    }
    
    .message-content p {
        font-size: 0.85rem;
    }
    
    .chatbot-input-container {
        padding: var(--spacing-xs);
    }
    
    #chatbotInput {
        padding: 0.6rem;
        font-size: 0.85rem;
    }
    
    #chatbotSend {
        padding: 0.6rem 0.875rem;
    }
    
    #chatbotSend svg {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .chatbot-container {
        bottom: 10px;
        right: 10px;
    }
    
    .chatbot-window {
        width: calc(100vw - 20px);
        right: 0;
        height: calc(100vh - 80px);
        max-height: 70vh;
        bottom: 70px;
    }
    
    .chatbot-toggle {
        width: 50px;
        height: 50px;
    }
    
    .chatbot-toggle svg {
        width: 22px;
        height: 22px;
    }
    
    .chatbot-badge {
        width: 20px;
        height: 20px;
        font-size: 0.7rem;
        top: -3px;
        right: -3px;
    }
    
    .chatbot-messages {
        padding: 0.5rem;
    }
    
    .message-content {
        max-width: 85%;
        font-size: 0.85rem;
        padding: 0.5rem 0.75rem;
    }
    
    .message-content p {
        font-size: 0.8rem;
    }
    
    .chatbot-input-container {
        padding: 0.5rem;
        gap: 0.5rem;
    }
    
    #chatbotInput {
        padding: 0.5rem;
        font-size: 0.8rem;
    }
    
    #chatbotSend {
        padding: 0.5rem 0.75rem;
    }
    
    #chatbotSend svg {
        width: 16px;
        height: 16px;
    }
}