:root {
    --primary: #004aad;
    --secondary: #ff6b00;
    --dark: #333;
    --light: #f4f7f6;
    --white: #ffffff;
}

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

body { line-height: 1.6; color: var(--dark); background-color: var(--white); }

/* Header & Nav */
header { background: var(--white); padding: 1rem 5%; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
.logo img { height: 50px; }
nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 20px; }
nav ul li a { text-decoration: none; color: var(--dark); font-weight: 600; transition: 0.3s; }
nav ul li a:hover { color: var(--primary); }

.hamburger { display: none; cursor: pointer; font-size: 1.5rem; }

/* Hero Section */
.hero { background: linear-gradient(rgba(0,74,173,0.8), rgba(0,74,173,0.8)), url('https://images.unsplash.com/photo-1449965408869-eaa3f722e40d?auto=format&fit=crop&w=1350&q=80'); background-size: cover; height: 60vh; color: var(--white); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 0 20px; }
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.cta-btn { background: var(--secondary); color: white; padding: 15px 30px; border: none; border-radius: 5px; font-size: 1.2rem; cursor: pointer; text-decoration: none; display: inline-block; transition: transform 0.2s; }
.cta-btn:hover { transform: scale(1.05); }

/* Grid Layout */
.container { width: 85%; max-width: 1200px; margin: 50px auto; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.card { padding: 30px; border-radius: 8px; background: var(--light); text-align: center; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }

/* Footer */
footer { background: #1a1a1a; color: #ccc; padding: 40px 5%; font-size: 0.9rem; }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; }
.disclaimer { font-size: 0.75rem; border-top: 1px solid #333; margin-top: 20px; padding-top: 20px; }

/* Responsive */
@media (max-width: 768px) {
    .hamburger { display: block; }
    nav ul { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; width: 100%; background: var(--white); padding: 20px; border-top: 1px solid #eee; }
    nav ul.active { display: flex; }
    nav ul li { margin: 10px 0; }
    .hero h1 { font-size: 2rem; }
}