/* eSIM Express - Main 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: #f8f9fa;
}

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

/* Navigation */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #007bff;
    text-decoration: none;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #007bff;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 400;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #007bff;
}

/* Content Sections */
section {
    padding: 3rem 0;
}

.marketing {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.marketing-text {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #555;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
}

.benefit-icon {
    color: #28a745;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Features Section */
.features h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h4 {
    color: #007bff;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* AI Content Section */
.ai-content {
    margin: 3rem 0;
}

.ai-enhanced {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
    padding: 2rem;
    margin: 2rem 0;
}

.ai-enhanced h3 {
    color: #007bff;
    margin-bottom: 1rem;
}

.ai-description {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #555;
}

.local-insights {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    border-left: 4px solid #28a745;
}

.usage-tips {
    list-style: none;
    padding: 0;
}

.usage-tips li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.usage-tips li:before {
    content: "💡";
    position: absolute;
    left: 0;
}

/* Pricing Section */
.pricing h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #333;
}

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

.pricing-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card h4 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.price {
    font-size: 3rem;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 1rem;
}

.pricing-card ul {
    list-style: none;
    margin: 1.5rem 0;
}

.pricing-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.pricing-card li:last-child {
    border-bottom: none;
}

/* Loading Animations */
.loading-skeleton {
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.content-section {
    animation-fill-mode: both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Footer */
footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero h2 {
        font-size: 1.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mt-2 {
    margin-top: 2rem;
}

.hidden {
    display: none;
}

/* Loading States */
.loading-text {
    color: #666;
    font-style: italic;
}

.success-text {
    color: #28a745;
}

.error-text {
    color: #dc3545;
}