/* General Setup */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    width: 85%;
    max-width: 1200px;
    margin: auto;
}

/* Header & Navbar */
header {
    background: #0d0d0d;
    color: #fff;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid #ff4d4d;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
}

.logo span { color: #ff4d4d; }

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

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

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    transition: 0.3s;
}

nav ul li a:hover { color: #ff4d4d; }

/* Hero Section */
.hero {
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?auto=format&fit=crop&w=1200') no-repeat center center/cover;
    display: flex;
    align-items: center;
    color: #fff;
    text-align: center;
}

.hero-overlay {
    background: rgba(0, 0, 0, 0.7);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #ff4d4d;
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
}

.btn {
    display: inline-block;
    padding: 12px 35px;
    background: #ff4d4d;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: 0.3s;
}

.btn:hover { background: #cc0000; }

/* Content Sections */
.content-section { padding: 100px 0; }

.info-flex {
    display: flex;
    align-items: center;
    gap: 50px;
}

.info-flex.reverse { flex-direction: row-reverse; }

.info-text { flex: 1; }

.info-text h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #0d0d0d;
}

.info-text ul {
    margin-top: 15px;
    list-style: square;
    padding-left: 20px;
}

.info-image { flex: 1; }

.info-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.alt-bg { background-color: #fff; border-top: 1px solid #ddd; border-bottom: 1px solid #ddd; }

/* Code Section */
.code-section {
    background: #1a1a1a;
    color: #fff;
    padding: 80px 0;
}

.section-title { text-align: center; font-size: 2.5rem; color: #ff4d4d; }
.subtitle { text-align: center; margin-bottom: 50px; color: #aaa; }

.code-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.code-card {
    background: #2d2d2d;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #444;
}

.card-header {
    background: #444;
    padding: 10px 15px;
    font-size: 0.9rem;
    color: #00ff00;
    font-family: monospace;
}

pre {
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    color: #f1f1f1;
}

/* Footer */
footer {
    background: #0d0d0d;
    color: #aaa;
    text-align: center;
    padding: 50px 0;
}

.credit { margin-top: 10px; color: #fff; letter-spacing: 1px; }

/* Responsive */
@media (max-width: 768px) {
    .info-flex, .info-flex.reverse { flex-direction: column; }
    .code-grid { grid-template-columns: 1fr; }
    .hero h2 { font-size: 2rem; }
    nav ul { display: none; } /* Ringkaskan untuk mobile */
}