/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body */
body {
    background: #ffffff;
    overflow-x: hidden;
}

/* Universal responsive image */
.section-img {
    display: block;
    width: 100vw;        /* FORCE viewport width */
    height: auto;        /* Browser recalculates */
    max-width: 100%;
}

/* Hero takes full viewport height */
.hero {
    min-height: 100vh;
}

/* Footer */
.footer {
    position: relative;
}

/* CTA overlay */
.cta {
    position: absolute;
    bottom: 4vw;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn {
    background: #ff6a00;
    color: #ffffff;
    padding: 0.9rem 1.8rem;
    text-decoration: none;
    font-weight: bold;
    border-radius: 6px;
}

.btn.secondary {
    background: #004aad;
}

/* Mobile */
@media (max-width: 768px) {
    .cta {
        flex-direction: column;
        align-items: center;
        bottom: 2rem;
    }

    .btn {
        width: 80%;
        text-align: center;
    }
}