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

body {
    background-color: #fff;
    color: #000;
    font-family: 'Azeret Mono', monospace;
    overflow-x: hidden;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 60px;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
}

.logo {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 2.8rem;
    letter-spacing: -1px;
}

nav {
    display: flex;
    gap: 50px;
}

nav a {
    text-decoration: none;
    color: #000;
    font-weight: 500;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    transition: all 0.2s ease;
}

nav a::before {
    content: '>';
    margin-right: 4px;
    visibility: hidden;
}

nav a::after {
    content: '<';
    margin-left: 4px;
    visibility: hidden;
}

nav a:hover::before,
nav a:hover::after {
    visibility: visible;
}

.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Vertically centers the content-group */
    width: 100%;
    min-height: 100vh;
    position: relative;
    padding: 100px 0; /* Some padding for header/footer safety */
}

.content-group {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 5;
}

.graphic-wrapper {
    position: relative;
    width: 85%;
    max-width: 1260px;
    margin-top: 10vh;
    display: flex;
    justify-content: center;
}

.main-graphic {
    width: 100%;
    height: auto;
    display: block;
    pointer-events: none; /* Let clicks pass to overlay-links */
}

.overlay-link {
    position: absolute;
    display: block;
    z-index: 100;
    cursor: pointer;
}

/* Custom Tooltip Styling */
.overlay-link::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: #000;
    color: #fff;
    padding: 8px 12px;
    font-family: 'Azeret Mono', monospace;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease-in-out;
    border: 1px solid #333;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.overlay-link:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Subtly show hitbox on hover for UX feedback (optional, can be removed) */
.overlay-link:hover {
    background: rgba(0, 102, 255, 0.05);
}

.scroll-indicator {
    position: absolute; /* Place at the very bottom of the relative container */
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 3;
}

.scroll-line {
    width: 4px; /* Thicker */
    height: 40px; /* Shorter */
    background: linear-gradient(to bottom, rgba(180,180,180,0) 0%, #a0a0a0 100%); /* Gradient on arrow */
}

.scroll-arrow {
    width: 16px;
    height: 16px;
    border-bottom: 4px solid #a0a0a0; /* Thicker */
    border-right: 4px solid #a0a0a0; /* Thicker */
    transform: rotate(45deg);
    margin-top: -4px;
}

@media (max-width: 768px) {
    header {
        position: static;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding: 24px 20px;
    }

    .logo {
        font-size: 1.8rem;
        letter-spacing: -0.5px;
    }

    nav {
        width: 100%;
        gap: 14px 18px;
        flex-wrap: wrap;
    }

    nav a {
        font-size: 0.95rem;
    }

    .main-content {
        min-height: auto;
        justify-content: flex-start;
        padding: 24px 0 64px;
    }

    .graphic-wrapper {
        width: 100%;
        max-width: none;
        margin-top: 0;
        padding: 0 10px;
    }

    .scroll-indicator {
        position: static;
        transform: none;
        margin-top: 24px;
    }
}