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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: #ffffff;
    padding: 20px 0;
    border-bottom: 1px solid #e0e0e0;
}

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

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #333;
}

.nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav a {
    color: #666;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 18px;
}

.nav a:hover {
    color: #4CAF50;
}

/* Hero Section - Home */
.home-hero {
    text-align: center;
    padding: 80px 0 100px;
}

.home-hero .hero-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #0d1b2a;
}

.home-hero .hero-subtitle {
    font-size: 24px;
    color: #666;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

.install-btn {
    display: inline-block;
    padding: 16px 40px;
    background: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s;
}

.install-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76,175,80,0.3);
}

/* Hero Section - Welcome */
.hero {
    padding: 60px 0 40px;
    text-align: center;
}

.hero-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #0d1b2a;
    line-height: 1.3;
}

/* Hero Section - Contact */
.contact-hero {
    text-align: left;
    padding: 80px 0;
}

.contact-hero .hero-title {
    font-size: 42px;
    margin-bottom: 15px;
}

.contact-hero .hero-subtitle {
    font-size: 18px;
    color: #666;
    margin-bottom: 40px;
}

.contact-info {
    margin-top: 30px;
}

.contact-info p {
    font-size: 18px;
    color: #333;
}

.contact-email {
    color: #4CAF50;
    text-decoration: none;
    font-weight: 600;
}

.contact-email:hover {
    text-decoration: underline;
}

/* Guide Section */
.guide {
    padding: 20px 0 60px;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step {
    display: flex;
    gap: 25px;
    align-items: flex-start;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
    border-left: 4px solid #4CAF50;
}

.step-number {
    width: 50px;
    height: 50px;
    background: #4CAF50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #0d1b2a;
}

.step-content p {
    color: #666;
    margin-bottom: 20px;
    font-size: 16px;
}

.step-image {
    margin-top: 15px;
}

.screenshot {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border: 1px solid #e0e0e0;
}

/* Responsive Design */
@media (max-width: 640px) {
    .home-hero {
        padding: 80px 0 60px;
    }
    
    .home-hero .hero-title {
        font-size: 36px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
    
    .contact-hero {
        text-align: center;
    }
}