:root { 
    --primary: #004a99; 
    --primary-dark: #003366;
    --secondary: #f4f7f6; 
    --text: #2d3748; 
    --white: #ffffff; 
    --border: #cbd5e0;
}
body { font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.7; color: var(--text); margin: 0; background: var(--secondary); font-size: 17px; }
header { background: var(--primary); color: var(--white); padding: 2.5rem 0; text-align: center; border-bottom: 4px solid #002b5c; }
header h1 { margin: 0; font-size: 2.8rem; letter-spacing: 0.5px; }
header p { margin: 10px 0 0; opacity: 0.95; font-size: 1.25rem; }

nav { background: #1a202c; color: var(--white); padding: 1.1rem; text-align: center; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
nav a { color: var(--white); margin: 0 22px; text-decoration: none; font-weight: 700; font-size: 1.1rem; transition: color 0.2s; }
nav a:hover { color: #63b3ed; }

.container { width: 90%; max-width: 1280px; margin: 40px auto; background: var(--white); padding: 50px; border-radius: 10px; box-shadow: 0 6px 12px rgba(0,0,0,0.06); }
h2 { color: var(--primary); border-bottom: 3px solid var(--border); padding-bottom: 12px; margin-top: 0; font-size: 2.2rem; }
p { font-size: 1.05rem; }

.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; margin-top: 30px; }
.hero-text { font-size: 1.1rem; }
.hero-image img, .content-image img { width: 100%; height: 320px; object-fit: cover; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.08); background: #e2e8f0; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 25px; margin: 40px 0; text-align: center; }
.stat-card { background: var(--white); border: 1px solid var(--border); padding: 25px; border-radius: 8px; box-shadow: 0 2px 6px rgba(0,0,0,0.03); }
.stat-card h3 { color: var(--primary); margin: 0 0 10px 0; font-size: 2.2rem; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 30px; margin-top: 30px; }
.product-card { border: 1px solid var(--border); padding: 30px; border-radius: 10px; background: var(--white); box-shadow: 0 3px 6px rgba(0,0,0,0.04); transition: transform 0.2s; }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
.product-card img { width: 100%; height: 220px; object-fit: cover; border-radius: 6px; margin-bottom: 20px; background: #e2e8f0; }
.product-card h3 { color: var(--primary); margin-top: 0; font-size: 1.4rem; }
.product-card ul { padding-left: 20px; color: #4a5568; font-size: 1.05rem; }
.product-card li { margin-bottom: 8px; }

table.specs-table { width: 100%; border-collapse: collapse; margin-top: 25px; }
table.specs-table th, table.specs-table td { border: 1px solid var(--border); padding: 15px; text-align: left; font-size: 1.05rem; }
table.specs-table th { background: var(--primary); color: var(--white); }
table.specs-table tr:nth-child(even) { background: #f8fafc; }

.contact-box { background: #f8fafc; padding: 40px; border-radius: 10px; border-left: 6px solid var(--primary); margin-top: 30px; }
.contact-detail { margin: 18px 0; font-size: 1.2rem; }
.btn-wa { display: inline-block; background: #25d366; color: white; padding: 14px 30px; text-decoration: none; border-radius: 6px; margin-top: 20px; font-weight: bold; font-size: 1.1rem; }
.btn-primary { display: inline-block; background: var(--primary); color: white; padding: 14px 30px; text-decoration: none; border-radius: 6px; font-weight: bold; font-size: 1.1rem; margin-top: 20px; }
.btn-primary:hover { background: var(--primary-dark); }

footer { background: #1a202c; color: var(--white); text-align: center; padding: 2.5rem; margin-top: 60px; font-size: 1rem; }
a.footer-link { color: #a0aec0; text-decoration: none; margin: 0 15px; }
a.footer-link:hover { color: #fff; }