/* Hero */
#hero {
    position: relative;
    height: 100vh;
    background: url("../img/hero.jpg") no-repeat center center / cover;
    background-attachment: fixed; /* background stays in place */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hero-logo {
    z-index: 2;
}

.hero-logo img {
    display: block;
    margin: 0 auto;

    /* responsive sizing */
    width: calc(100vw - 40px); /* 20px space on left + right */
    height: auto;

    /* safety limits */
    max-height: 85vh; /* don’t overflow vertically */
    max-width: 1200px; /* cap for very large screens */

    object-fit: contain;
}

/* Hero arrow */
.scroll-down {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3rem;
    color: var(--color-red);
    z-index: 5;
    opacity: 1;
    transition: opacity 0.4s ease, color 0.3s ease, transform 0.3s ease;
    animation: pulse-glow 2s infinite;
    cursor: pointer;
}

/* Pulse glow effect */
@keyframes pulse-glow {
    0%,
    100% {
        text-shadow: 0 0 5px var(--color-red), 0 0 10px var(--color-red);
    }
    50% {
        text-shadow: 0 0 15px var(--color-red), 0 0 30px var(--color-red);
    }
}

.scroll-down:hover {
    color: var(--color-accent);
    transform: translateX(-50%) scale(1.2);
}