:root {
    --primary-color: #111a31; /* Diambil dari logo BIG */
    --secondary-color: #1e305a;
    --text-color: #333333;
    --bg-light: #f4f7f6;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

/* Typography & Utilities */
.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}
.section-padding { padding: 80px 0; }
.section-title {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 40px;
    font-size: 2rem;
}
.bg-light { background-color: var(--bg-light); }
.text-center { text-align: center; }
.icon-primary { color: var(--primary-color); margin-bottom: 15px; }

/* Navbar */
#navbar {
    background: var(--white);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}
.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}
.logo img { height: 60px; }
.nav-links {
    list-style: none;
    display: flex;
}
.nav-links li { padding: 0 15px; }
.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    margin-top: 60px; /* Offset for navbar */
}
.hero h1 { font-size: 3rem; margin-bottom: 20px; }
.hero p { font-size: 1.2rem; margin-bottom: 30px; }
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    transition: 0.3s;
}
.btn:hover { background: #e0e0e0; }

/* Grid System */
.grid-3, .grid-4 {
    display: grid;
    gap: 30px;
}
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* Cards */
.card, .product-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    border: 1px solid #eaeaea;
}
.card:hover, .product-card:hover { transform: translateY(-5px); }
.product-card h4 { color: var(--primary-color); margin-bottom: 10px; }

/* Brands */
.brand-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}
.tag {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: bold;
    border: 2px solid var(--primary-color);
}

/* Footer */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 20px 0;
}