:root {
    --primary: #0052cc;
    --secondary: #00d285;
    --dark: #1a202c;
    --light: #f7fafc;
    --white: #ffffff;
    --gray: #718096;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

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

/* Header & Navigation */
header {
    background: var(--white);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.logo img { height: 50px; }

nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 2rem; }
nav ul li a { text-decoration: none; color: var(--dark); font-weight: 600; transition: 0.3s; }
nav ul li a:hover { color: var(--primary); }

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

/* Hero Sections */
.hero {
    padding: 80px 5%;
    background: linear-gradient(135deg, var(--primary), #003380);
    color: var(--white);
    text-align: center;
}

.hero h1 { font-size: 2.8rem; margin-bottom: 1rem; }

/* Buttons */
.cta-btn {
    display: inline-block;
    background: var(--secondary);
    color: var(--dark);
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px rgba(0, 210, 133, 0.4);
    transition: transform 0.2s;
}
.cta-btn:hover { transform: scale(1.05); }

/* Grids */
.container { padding: 60px 5%; max-width: 1200px; margin: auto; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

.card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

/* Footer */
footer { background: var(--dark); color: var(--white); padding: 50px 5% 20px; text-align: center; }
.footer-content { margin-bottom: 30px; font-size: 0.9rem; }
.disclaimer { font-size: 0.8rem; color: var(--gray); margin-top: 20px; border-top: 1px solid #333; padding-top: 20px; }

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px; left: 0; width: 100%;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow);
    }
    nav ul.active { display: flex; }
    nav ul li { margin: 10px 0; }
}