/* CSS Variabel untuk konsistensi warna */
:root {
    --primary-green: #2e7d32;
    --secondary-orange: #f57c00;
    --dark-bg: #1a1a1a;
    --text-dark: #333333;
    --text-gray: #666666;
    --bg-light: #f4f7f6;
}

body {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

/* --- NAVBAR --- */
.navbar {
    background-color: #ffffff;
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand-text { font-weight: 800; font-size: 24px; color: var(--primary-green); text-decoration: none;}
.nav-links { display: flex; gap: 30px; height: 100%; }
.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--primary-green);
    border-bottom: 3px solid var(--primary-green);
}
.nav-actions { display: flex; align-items: center; gap: 20px; }
.lang-btn {
    text-decoration: none; font-weight: 700; font-size: 14px;
    color: #fff; background: var(--text-dark); padding: 5px 10px; border-radius: 4px;
}
.lang-btn.active { background: var(--primary-green); }

/* --- HERO SECTION --- */
.hero {
    /* Background hero image */
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1532996122724-e3c354a0b15b?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    padding: 120px 5% 180px 5%; 
    color: #ffffff;
}
.hero-sub {
    color: var(--primary-green);
    font-weight: 800;
    letter-spacing: 1px;
    font-size: 14px;
    margin-bottom: 15px;
    text-transform: uppercase;
}
.hero-title {
    font-size: 54px;
    font-weight: 800;
    margin: 0 0 25px 0;
    max-width: 800px;
    line-height: 1.2;
}
.hero-desc {
    font-size: 16px;
    line-height: 1.6;
    max-width: 600px;
    margin-bottom: 40px;
    color: #e0e0e0;
}
.hero-btns { display: flex; gap: 20px; }
.btn {
    padding: 15px 30px;
    border-radius: 6px;
    font-weight: 700;
    text-decoration: none;
    font-size: 15px;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn-primary { background: var(--secondary-orange); color: #fff; border: 2px solid var(--secondary-orange); }
.btn-primary:hover { background: transparent; color: var(--secondary-orange); }
.btn-outline { background: transparent; color: #fff; border: 2px solid #fff; }
.btn-outline:hover { background: #fff; color: var(--text-dark); }

/* --- FEATURES OVERLAP CARDS --- */
.features-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 0 5%;
    margin-top: -100px; /* Efek menimpa Hero */
    position: relative;
    z-index: 10;
}
.feature-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px 25px;
    text-align: center;
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}
.feature-card:hover { transform: translateY(-10px); }
.feature-icon {
    font-size: 40px;
    color: var(--primary-green);
    margin-bottom: 20px;
}
.feature-title {
    color: var(--secondary-orange);
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 15px;
}
.feature-desc {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

/* Responsive Rules */
@media (max-width: 1024px) {
    .features-container { grid-template-columns: repeat(2, 1fr); margin-top: -50px; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-title { font-size: 36px; }
    .features-container { grid-template-columns: 1fr; margin-top: 20px; }
    .hero { padding-bottom: 60px; }
}