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

:root {
    --primary-color: #FF6B35;
    --secondary-color: #1A1A2E;
    --accent-color: #FF8C42;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 1;
}

.language-selector {
    position: relative;
    cursor: pointer;
    color: var(--white);
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
}

.language-selector .dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    min-width: 150px;
    z-index: 1000;
}

.language-selector:hover .dropdown {
    display: block;
}

.language-selector .dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    border-bottom: 1px solid #eee;
}

.language-selector .dropdown a:last-child {
    border-bottom: none;
}

.language-selector .dropdown a:hover {
    background: var(--light-bg);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #16213E 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 2rem;
}

.hero-content {
    max-width: 800px;
}

.hero-image {
    width: auto;
    max-width: 100%;
    height: auto;
    border-radius: 40px;
    margin-bottom: 2rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.5rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.app-store-badge img {
    height: 50px;
    transition: transform 0.2s;
}

.app-store-badge:hover img {
    transform: scale(1.05);
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background: var(--white);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Data Sources Section */
.data-sources {
    padding: 5rem 2rem;
    background: var(--light-bg);
}

.data-sources h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.sources {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.source {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.source h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Requirements Section */
.requirements {
    padding: 4rem 2rem;
    background: var(--white);
    text-align: center;
}

.requirements h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--secondary-color);
}

.requirements ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.requirements li {
    background: var(--light-bg);
    padding: 1rem 2rem;
    border-radius: 8px;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    margin: 0 1rem;
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
}

.disclaimer {
    font-size: 0.85rem;
    opacity: 0.7;
    max-width: 600px;
    margin: 1rem auto 0;
}

/* Legal Pages */
.legal-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.legal-page h1 {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.legal-page h2 {
    color: var(--secondary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.legal-page p, .legal-page ul {
    margin-bottom: 1rem;
}

.legal-page ul {
    padding-left: 2rem;
}

.back-link {
    display: inline-block;
    margin-bottom: 2rem;
    color: var(--primary-color);
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

    .hero-image {
        max-width: 80%;
    }

    nav {
        padding: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .requirements ul {
        flex-direction: column;
        align-items: center;
    }
}