body {
    margin: 0;
    overflow: hidden;
    font-family: 'Orbitron', sans-serif;
}

/* ---------------------------
   Shared site navigation
---------------------------- */

.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 0 16px;
    z-index: 20000;
    background: rgba(0, 0, 0, 0.75);
    border-bottom: 1px solid rgba(79, 195, 247, 0.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.top-nav a {
    color: #b3e5fc;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    padding: 10px 14px;
    border-radius: 6px;
    border: 1px solid transparent;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.top-nav a:hover {
    background: rgba(79, 195, 247, 0.08);
    border-color: rgba(79, 195, 247, 0.25);
    color: #4fc3f7;
}

.top-nav a.active {
    background: rgba(79, 195, 247, 0.12);
    border-color: rgba(79, 195, 247, 0.45);
    color: #4fc3f7;
}

/* ---------------------------
   Home page scaffold
---------------------------- */

body.home {
    overflow: auto;
    background: #000000;
    color: #b3e5fc;
}

.home-page {
    min-height: 100vh;
    padding-top: 56px; /* keep content below the top nav */
    display: block;
}

.home-page h1 {
    margin: 0;
    font-size: 64px;
    letter-spacing: 8px;
    text-transform: uppercase;
    color: #4fc3f7;
    text-shadow: 0 0 20px rgba(79, 195, 247, 0.5);
}

.home-content {
    max-width: 980px;
    margin: 0 auto;
    padding: 64px 20px 80px;
}

.home-hero {
    text-align: center;
}

.home-title {
    font-size: 54px;
    letter-spacing: 6px;
    line-height: 1.05;
}

.home-tagline {
    margin: 10px 0 0;
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(179, 229, 252, 0.92);
    text-shadow: 0 0 14px rgba(79, 195, 247, 0.25);
}

.home-video {
    margin: 28px 0 30px;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    border: 1px solid rgba(79, 195, 247, 0.35);
    background:
        radial-gradient(circle at 30% 20%, rgba(79, 195, 247, 0.18), rgba(0, 0, 0, 0) 55%),
        rgba(0, 0, 0, 0.35);
    box-shadow: 0 0 30px rgba(79, 195, 247, 0.12);
}

.home-video-player {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 12px;
    object-fit: cover;
    background: #000;
}

.home-video-copy {
    margin: 14px 0 18px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: rgba(179, 229, 252, 0.85);
}

.home-video-header {
    margin: 18px 0 10px;
    font-size: 18px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #81d4fa;
    font-family: 'Orbitron', sans-serif;
}

.home-body {
    font-family: 'Space Grotesk', sans-serif;
}

.home-body p {
    margin: 18px 0;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(179, 229, 252, 0.95);
    letter-spacing: 0.2px;
}

.home-body h2 {
    margin: 26px 0 10px;
    font-size: 18px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #81d4fa;
    font-family: 'Orbitron', sans-serif;
}

.home-body ul {
    margin: 8px 0 0;
    padding-left: 22px;
}

.home-body li {
    margin: 10px 0;
    line-height: 1.7;
    color: rgba(179, 229, 252, 0.92);
}

.home-release {
    margin-top: 34px;
    font-size: 18px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #4fc3f7;
    text-shadow: 0 0 16px rgba(79, 195, 247, 0.35);
}

.home-footer {
    margin-top: 46px;
    padding-top: 22px;
    border-top: 1px solid rgba(79, 195, 247, 0.18);
}

.home-footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.home-footer .creator {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 13px;
    color: rgba(179, 229, 252, 0.9);
}

.home-footer .creator .name {
    color: #4fc3f7;
}

.home-footer .social {
    display: flex;
    gap: 10px;
}

.home-footer .icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid rgba(79, 195, 247, 0.25);
    background: rgba(0, 0, 0, 0.25);
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.home-footer .icon:hover {
    transform: translateY(-1px);
    border-color: rgba(79, 195, 247, 0.45);
    background: rgba(79, 195, 247, 0.08);
}

.home-footer .icon svg {
    width: 20px;
    height: 20px;
    fill: #b3e5fc;
}

canvas {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#space-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

#welcome-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000000;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    color: #4fc3f7;
}

.welcome-content {
    text-align: center;
    font-family: 'Orbitron', sans-serif;
}

.welcome-content h1 {
    font-size: 64px;
    margin-bottom: 30px;
    letter-spacing: 8px;
    text-transform: uppercase;
    color: #4fc3f7;
    text-shadow: 0 0 20px rgba(79, 195, 247, 0.5);
}

.instructions {
    margin: 40px 0;
}

.instructions h2 {
    font-size: 24px;
    margin: 20px 0 15px;
    text-transform: uppercase;
    color: #81d4fa;
    letter-spacing: 3px;
}

.instructions p {
    font-size: 16px;
    margin: 8px 0;
    line-height: 1.6;
    text-align: center;
    color: #b3e5fc;
    letter-spacing: 1px;
}

/* Control columns layout */
.control-columns {
    display: flex;
    justify-content: space-around;
    margin: 0 auto;
    max-width: 900px;
    gap: 20px;
}

.control-column {
    flex: 1;
    padding: 0 15px;
    border: 1px solid rgba(79, 195, 247, 0.3);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
}

.control-column h3 {
    font-size: 20px;
    color: #4fc3f7;
    text-transform: uppercase;
    margin: 15px 0;
    letter-spacing: 2px;
    text-align: center;
    text-shadow: 0 0 10px rgba(79, 195, 247, 0.5);
}

.mode-buttons {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    justify-content: center;
}

.mode-button {
    padding: 15px 40px;
    font-size: 18px;
    color: #4fc3f7;
    background: transparent;
    border: 2px solid #4fc3f7;
    border-radius: 4px;
    cursor: pointer;
    text-transform: uppercase;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

.mode-button:hover {
    background: rgba(79, 195, 247, 0.1);
    box-shadow: 0 0 20px rgba(79, 195, 247, 0.3);
    transform: scale(1.05);
}

/* ---------------------------
   Mobile responsiveness
---------------------------- */

@media (max-width: 720px) {
    .top-nav {
        height: auto;
        padding: 10px 12px;
        gap: 10px;
        justify-content: space-between;
    }

    .top-nav a {
        padding: 8px 10px;
        font-size: 13px;
        letter-spacing: 1.2px;
    }

    /* Home */
    .home-content {
        padding: 26px 16px 56px;
    }

    .home-hero h1 {
        /* Back-compat (in case of cached markup) */
        font-size: 28px;
        letter-spacing: 1.2px;
        line-height: 1.2;
    }

    .home-title {
        font-size: 34px;
        letter-spacing: 2px;
        line-height: 1.15;
    }

    .home-tagline {
        font-size: 14px;
        letter-spacing: 2px;
    }

    .home-body p,
    .home-body li {
        font-size: 15px;
        line-height: 1.75;
    }

    .home-body h2 {
        font-size: 16px;
        letter-spacing: 2px;
    }

    .home-release {
        font-size: 16px;
        letter-spacing: 2px;
    }

    .home-footer-row {
        flex-direction: column;
        align-items: flex-start;
    }

    /* Games intro */
    #welcome-screen {
        align-items: flex-start;
        padding-top: 80px; /* leave room for fixed nav */
        overflow: auto;
        -webkit-overflow-scrolling: touch;
    }

    .welcome-content {
        width: min(92vw, 560px);
        padding: 0 16px 40px;
    }

    .welcome-content h1 {
        font-size: 34px;
        letter-spacing: 3px;
        margin-bottom: 18px;
    }

    .instructions {
        margin: 24px 0;
    }

    .instructions h2 {
        font-size: 18px;
        letter-spacing: 2px;
        margin: 14px 0 10px;
    }

    .instructions p {
        font-size: 14px;
    }

    .control-columns {
        flex-direction: column;
        max-width: 520px;
        gap: 12px;
    }

    .control-column {
        padding: 10px 12px;
    }

    .control-column h3 {
        font-size: 16px;
        letter-spacing: 1.5px;
        margin: 10px 0;
    }

    .mode-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        margin-top: 22px;
    }

    .mode-button {
        width: 100%;
        padding: 14px 16px;
        font-size: 16px;
        letter-spacing: 1.5px;
    }
}