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

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --text-color: #1d1d1f;
    --text-secondary: #6e6e73;
    --bg-color: #ffffff;
    --bg-secondary: #f5f5f7;
    --border-color: #d2d2d7;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 40px rgba(0, 0, 0, 0.15);
}

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

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

/* Header & Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

nav {
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.logo-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.logo h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero h2 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.1;
}

.subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.btn-large {
    font-size: 20px;
    padding: 18px 40px;
}

.apple-icon {
    font-size: 24px;
}

.app-store-badge {
    display: inline-block;
    transition: transform 0.3s, opacity 0.3s;
}

.app-store-badge img {
    height: 60px;
    width: auto;
}

.app-store-badge:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.compatibility {
    font-size: 14px;
    opacity: 0.8;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-icon-hero {
    width: 400px;
    height: 400px;
    border-radius: 80px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: #1d1d1f;
    border-radius: 40px;
    padding: 15px;
    box-shadow: var(--shadow-large);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 30px;
    overflow: hidden;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.features h2 {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
}

/* Screenshots Section */
.screenshots {
    padding: 100px 0;
}

.screenshots h2 {
    text-align: center;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 60px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.screenshot-item {
    text-align: center;
}

.screenshot-item img {
    width: 100%;
    max-width: 300px;
    border-radius: 20px;
    box-shadow: var(--shadow-large);
    margin-bottom: 15px;
    transition: transform 0.3s;
}

.screenshot-item img:hover {
    transform: scale(1.05);
}

.screenshot-item p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta p {
    font-size: 24px;
    margin-bottom: 40px;
    opacity: 0.95;
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 15px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero h2 {
        font-size: 40px;
    }

    .subtitle {
        font-size: 20px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-image {
        margin-top: 40px;
    }

    .app-icon-hero {
        width: 280px;
        height: 280px;
        border-radius: 60px;
    }

    .nav-links {
        display: none;
    }

    .features h2,
    .screenshots h2,
    .cta h2 {
        font-size: 36px;
    }

    .features-grid,
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 32px;
    }

    .subtitle {
        font-size: 18px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 16px;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }
}