/* css/main.css */
:root {
    --primary-color: #FF6B35;
    --secondary-color: #333;
    --text-color: #555;
    --light-bg: #f9f9f9;
    --white: #fff;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

/* Header */
.site-header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo img {
    height: 32px;
    width: auto;
}

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

.main-nav a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Hero Section */
.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fff5f2 0%, #fff 100%);
}

.hero-section .container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 40px;
}

.hero-note {
    margin-top: 15px;
    font-size: 0.9rem;
    color: #888;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 20px;
}

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

/* Features Section */
.features-section {
    padding: 80px 0;
    background-color: var(--white);
}

h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 50px;
}

.features-grid {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.feature-card {
    flex: 1;
    text-align: center;
    padding: 40px 20px;
    background: var(--light-bg);
    border-radius: 10px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.feature-card .icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

/* Screenshots Section */
.screenshots-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.screenshots-slider {
    display: flex;
    overflow-x: auto;
    gap: 20px;
    padding-bottom: 20px;
    scrollbar-width: none; /* Firefox */
}

.screenshots-slider::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.screenshots-slider img {
    width: 80%;
    max-width: 800px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    flex-shrink: 0;
}

/* Download Section */
.download-section {
    padding: 80px 0;
    background-color: var(--white);
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.platform-card {
    text-align: center;
    padding: 30px;
    border: 1px solid #eee;
    border-radius: 10px;
    transition: var(--transition);
}

.platform-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.platform-card .icon {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
}

.platform-card h3 {
    margin-bottom: 20px;
    color: var(--secondary-color);
}

/* Footer */
.site-footer {
    background-color: #333;
    color: #999;
    padding: 40px 0;
}

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

.footer-links a {
    color: #999;
    text-decoration: none;
    margin-left: 20px;
    transition: var(--transition);
}

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

/* Lazy Load */
img.lazy {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

img:not(.lazy) {
    opacity: 1;
}