/* EU Energy Monitor - Homepage Styles */

:root {
    --primary-color: #10b981;
    --primary-dark: #059669;
    --secondary-color: #3b82f6;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-yellow: #fbbf24;
    --accent-red: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
nav {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    border-bottom: 1px solid var(--surface-light);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.2rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.95rem;
}

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

.lang-switch {
    display: flex;
    gap: 8px;
    padding: 4px;
    background: var(--surface);
    border-radius: 8px;
}

.lang-switch a {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
}

.lang-switch a.active {
    background: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    padding: 120px 0 60px;
    text-align: center;
}

.hero-banner {
    width: 100%;
    max-width: 900px;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}

.app-store-badge {
    height: 54px;
    transition: transform 0.2s;
}

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

/* Features Section */
.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--surface);
    border-radius: 16px;
    padding: 32px;
    border: 1px solid var(--surface-light);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Data Sources Section */
.data-sources {
    padding: 80px 0;
    background: var(--surface);
}

.sources-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
}

.source-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--background);
    border-radius: 12px;
    border: 1px solid var(--surface-light);
}

.source-item span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
footer {
    padding: 48px 0;
    border-top: 1px solid var(--surface-light);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

.copyright {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Privacy Policy Page */
.policy-page {
    padding: 120px 0 60px;
    max-width: 800px;
    margin: 0 auto;
}

.policy-page h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.policy-page .last-updated {
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.policy-page h2 {
    font-size: 1.5rem;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--primary-color);
}

.policy-page p,
.policy-page li {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.policy-page ul {
    padding-left: 24px;
    margin-bottom: 24px;
}

.policy-page li {
    margin-bottom: 8px;
}

.contact-box {
    background: var(--surface);
    border-radius: 12px;
    padding: 24px;
    margin-top: 32px;
    border: 1px solid var(--surface-light);
}

.contact-box a {
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

    nav .container {
        flex-direction: column;
        gap: 16px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}