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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.logo span {
    color: #4dabf7;
}

.logo i {
    margin-right: 10px;
    font-size: 2rem;
    color: #4dabf7;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav li {
    margin-left: 25px;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 4px;
    transition: all 0.3s;
}

.nav a:hover, .nav a.active {
    background-color: rgba(255, 255, 255, 0.15);
}

.btn-login {
    background-color: #4dabf7;
    color: white;
    padding: 8px 20px;
    border-radius: 4px;
    font-weight: 500;
}

.btn-login:hover {
    background-color: #3b99e0;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(30, 60, 114, 0.85), rgba(42, 82, 152, 0.9)), url('https://images.unsplash.com/photo-1555854877-bab0e564b8d5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.stats-comparison {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin: 40px 0;
}

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

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: #4dabf7;
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    margin-top: 10px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.btn-primary {
    background-color: #4dabf7;
    color: white;
    padding: 15px 40px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s;
    font-size: 1.1rem;
}

.btn-primary i {
    margin-right: 10px;
}

.btn-primary:hover {
    background-color: #3b99e0;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    padding: 15px 40px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid white;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s;
    font-size: 1.1rem;
}

.btn-secondary i {
    margin-right: 10px;
}

.btn-secondary:hover {
    background-color: white;
    color: #2a5298;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background-color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.stat-card {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    transition: transform 0.3s;
    border-left: 4px solid #4dabf7;
}

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

.stat-card i {
    font-size: 2.5rem;
    margin-right: 20px;
    color: #2a5298;
}

.stat-info h3 {
    font-size: 1rem;
    color: #666;
    margin-bottom: 5px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #2a5298;
    display: block;
    margin-bottom: 10px;
}

.stat-details {
    font-size: 0.9rem;
    color: #888;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: #f8fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: #2a5298;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s;
    border-top: 4px solid #4dabf7;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: #e3f2fd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 2rem;
    color: #2a5298;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2a5298;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
    background-color: white;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #2a5298;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #2a5298;
}

.step-content p {
    color: #666;
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(rgba(30, 60, 114, 0.9), rgba(42, 82, 152, 0.9)), url('https://images.unsplash.com/photo-1560518883-ce09059eeffa?ixlib=rb-4.0.3&auto=format&fit=crop&w=1973&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
.footer {
    background: #1a1a2e;
    color: white;
    padding: 50px 0 20px;
}

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

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #4dabf7;
}

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

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

.footer-col ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: #4dabf7;
}

.contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-info i {
    margin-right: 10px;
    color: #4dabf7;
    width: 20px;
}

.social-links {
    margin-top: 20px;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #2a5298;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    margin-right: 10px;
    transition: background 0.3s;
}

.social-links a:hover {
    background: #4dabf7;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    color: #999;
    font-size: 0.9rem;
}

.footer-bottom i {
    color: #e74c3c;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }
    
    .nav ul {
        margin-top: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav li {
        margin: 5px 10px;
    }
    
    .hero h2 {
        font-size: 2.2rem;
    }
    
    .stats-comparison {
        flex-direction: column;
        gap: 30px;
    }
    
    .hero-buttons, .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .stat-card i {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}