@font-face {
    font-family: 'Orbitron';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('fonts/orbitron-regular-latin.woff2') format('woff2');
}

@font-face {
    font-family: 'Space Mono';
    font-style: normal;
    font-weight: normal;
    font-display: swap;
    src: url('fonts/space-mono-regular-latin.woff2') format('woff2');
}

@font-face {
    font-family: 'Space Mono';
    font-style: normal;
    font-weight: bold;
    font-display: swap;
    src: url('fonts/space-mono-bold-latin.woff2') format('woff2');
}

@font-face {
    font-family: 'Space Mono';
    font-style: italic;
    font-weight: normal;
    font-display: swap;
    src: url('fonts/space-mono-italic-latin.woff2') format('woff2');
}

:root {
    color-scheme: dark light;

    /* Neon CRT dark theme (default) */
    --page-bg: #080810;
    --page-text: #b8c8e0;
    --link-color: #00ccff;
    --link-hover: #00ffcc;
    --hover-glow: rgba(0, 255, 204, 0.5);

    --accent: #00ffcc;
    --accent-warm: #ff2d78;
    --accent-glow: rgba(0, 255, 204, 0.5);
    --warm-glow: rgba(255, 45, 120, 0.5);

    --grid-color: rgba(0, 255, 204, 0.032);
    --scanline-color: rgba(0, 0, 0, 0.07);
    --vignette: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.45) 100%);
    --border-subtle: rgba(0, 255, 204, 0.16);
    --bg-panel: rgba(0, 255, 204, 0.025);

    --form-bg-from: #0c1622;
    --form-bg-to: #070d18;
    --form-shadow: rgba(0, 255, 204, 0.12);
    --form-heading: #00ffcc;
    --form-text: #90b0cc;

    --input-bg: #050c16;
    --input-border: rgba(0, 255, 204, 0.22);
    --input-focus-border: #00ffcc;
    --input-focus-shadow: rgba(0, 255, 204, 0.15);

    --spinner-border: rgba(0, 255, 204, 0.3);
    --marker: #00ffcc;

    --success: #00cc66;
    --error: #ff2d78;
}

@media (prefers-color-scheme: light) {
    :root {
        /* Vintage amber phosphor terminal theme */
        --page-bg: #f0e8d0;
        --page-text: #2c1c08;
        --link-color: #8800cc;
        --link-hover: #aa22ff;
        --hover-glow: rgba(170, 34, 255, 0.4);

        --accent: #c26000;
        --accent-warm: #cc0044;
        --accent-glow: rgba(194, 96, 0, 0.45);
        --warm-glow: rgba(204, 0, 68, 0.45);

        --grid-color: rgba(100, 55, 0, 0.055);
        --scanline-color: rgba(0, 0, 0, 0.025);
        --vignette: radial-gradient(ellipse at center, transparent 60%, rgba(80, 40, 0, 0.15) 100%);
        --border-subtle: rgba(100, 55, 0, 0.22);
        --bg-panel: rgba(100, 55, 0, 0.04);

        --form-bg-from: #ece0c0;
        --form-bg-to: #e6d8b0;
        --form-shadow: rgba(80, 40, 0, 0.12);
        --form-heading: #6e3000;
        --form-text: #4a2808;

        --input-bg: #f8f0dc;
        --input-border: rgba(100, 55, 0, 0.28);
        --input-focus-border: #c26000;
        --input-focus-shadow: rgba(194, 96, 0, 0.18);

        --spinner-border: rgba(100, 55, 0, 0.28);
        --marker: #c26000;

        --success: #005520;
        --error: #cc0044;
    }
}

html {
    background: var(--page-bg);
}

html, body {
    font-family: 'Space Mono', 'Courier New', monospace;
    font-size: 13pt;
    color: var(--page-text);
}

body {
    background-color: var(--page-bg);
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    max-width: 600pt;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0 auto;
    padding: 0 10pt;
    position: relative;
}

/* Vignette */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--vignette);
    pointer-events: none;
    z-index: 9998;
}

/* CRT scanlines */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        var(--scanline-color) 3px,
        var(--scanline-color) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

body#home {
    font-size: 15pt;
    text-align: center;
}

no-br {
    white-space: nowrap;
}

a {
    color: var(--link-color);
    transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
    color: var(--link-hover);
    text-shadow: 0 0 10px var(--hover-glow);
}

header nav ul {
    list-style: none;
    display: flex;
    padding: 0;
    margin: 10pt 0;
    font-size: smaller;

    a {
        text-decoration: none;
    }

    li + li::before {
        content: "»";
        margin: 0.3rem;
    }
}

img {
    max-width: 100%;
    height: auto;
}

body#home > main > img {
    border-radius: 36px;
    filter: drop-shadow(0 0 22px var(--accent-glow));
    transition: filter 0.35s ease;
    animation: fade-up 0.9s ease-out;
}

h1, h2, h3 {
    margin-top: 0;
    padding-top: 0;
    font-weight: 600;
}

h1#appname {
    font-family: 'Orbitron', sans-serif;
    font-weight: normal;
    font-size: 5.5rem;
    margin: 0.05em 0 0;
    line-height: 1;
    animation: fade-up 0.9s ease-out 0.15s both;
}

h2#tagline {
    margin: 1.5em 1em;
    font-size: 1.3rem;
    font-weight: normal;
    line-height: 1.55;
    text-shadow: 0 0 18px color-mix(in srgb, var(--page-text) 25%, transparent);
    animation: fade-up 0.9s ease-out 0.3s both;
}

h2#tagline i {
    color: var(--accent);
    font-style: italic;
}

body#home > main > h3 {
    font-weight: normal;
    margin: 2em;
    animation: fade-up 0.9s ease-out 0.45s both, ease-in-out 1.5s infinite;
}

main > ul > li {
    margin-top: 1.25rem;
}

section#join-form {
    background: linear-gradient(135deg, var(--form-bg-from), var(--form-bg-to));
    box-shadow: 0 4px 20px var(--form-shadow), 0 0 0 1px var(--border-subtle);
    font-size: 12pt;
    border-radius: 4px;
    padding: 2em 2.5em;
    max-width: 28em;
    margin: 2.5em auto;
    text-align: left;

    h1 {
        font-family: 'Space Mono', monospace;
        font-weight: normal;
        text-align: center;
        color: var(--form-heading);
        font-size: 2.2em;
        margin-bottom: 0.3em;
        text-shadow: 0 0 12px var(--accent-glow);
        letter-spacing: 0.05em;
    }

    p {
        text-align: center;
        color: var(--form-text);
        margin-bottom: 1.5em;
    }

    form {
        display: flex;
        flex-direction: column;
        gap: 1.5em;
    }

    form:has(> p.success:first-child),
    form:has(> p.error:first-child) {
        gap: 0;
    }

    form:has(:user-invalid) button[type="submit"] {
        pointer-events: none;
        opacity: 0.5;
        cursor: not-allowed;
    }

    .field {
        display: flex;
        flex-direction: column;
        gap: 0.3em;

        span {
            font-weight: 700;
            color: var(--form-text);
        }

        input {
            padding: 0.5em 0.7em;
            border: 1px solid var(--input-border);
            border-radius: 2px;
            font-size: 1em;
            font-family: 'Space Mono', 'Courier New', monospace;
            background: var(--input-bg);
            color: var(--page-text);
        }

        input:focus {
            outline: none;
            border-color: var(--input-focus-border);
            box-shadow: 0 0 0 2px var(--input-focus-shadow);
        }

        .radio-group {
            display: flex;
            gap: 2em;

            label {
                display: flex;
                align-items: center;
                gap: 0.4em;
            }

            input[type="radio"] {
                width: 1.1em;
                height: 1.1em;
                accent-color: var(--accent);
                padding: 0;
                border: none;
                border-radius: 0;
                background: none;
            }
        }
    }

    label {
        color: var(--form-text);
        font-weight: 700;
    }

    label.checkbox {
        display: flex;
        align-items: center;
        gap: 0.5em;
        cursor: pointer;

        input[type="checkbox"] {
            width: 1.1em;
            height: 1.1em;
            accent-color: var(--accent);
        }
    }

    button[type="submit"] {
        padding: 0.6em 1.4em;
        background: transparent;
        color: var(--accent);
        border: 1px solid var(--accent);
        border-radius: 2px;
        font-family: 'Space Mono', monospace;
        font-size: 1.3em;
        font-weight: normal;
        letter-spacing: 0.12em;
        cursor: pointer;
        text-shadow: 0 0 8px var(--accent-glow);
        box-shadow: 0 0 8px color-mix(in srgb, var(--accent) 15%, transparent);
        transition: all 0.18s ease;
    }

    button[type="submit"]:hover {
        background: var(--accent);
        color: var(--page-bg);
        box-shadow: 0 0 18px var(--accent-glow);
        text-shadow: none;
    }

    p.success, p.error {
        margin: 0.5em 0;
        text-align: center;
        font-weight: 700;
    }

    p.success { color: var(--success); }
    p.error { color: var(--error); }

    .spinner {
        display: none;
    }

    form.htmx-request button[type="submit"] {
        display: none;
    }

    form.htmx-request .spinner {
        display: block;
        width: 1.5em;
        height: 1.5em;
        border: 3px solid var(--spinner-border);
        border-top-color: var(--accent);
        border-radius: 50%;
        animation: spin 0.6s linear infinite;
        margin: 0 auto;
    }
}

section#q-and-a {
    text-align: left;
    font-size: 13pt;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 0.75em 1em;
    margin-bottom: 1.5em;

    details {
        margin-bottom: 0.75em;
        padding-left: clamp(0.5em, 3vw, 1.5em);

        summary {
            h1, h2 {
                display: inline-block;
                margin-bottom: 0.4em;
                font-family: 'Space Mono', monospace;
                font-weight: normal;
                letter-spacing: 0.05em;
            }

            h1 {
                font-size: 2.4rem;
                color: var(--accent);
                text-shadow: 0 0 10px var(--accent-glow);
            }

            h2 {
                font-size: 1.7rem;
                color: var(--accent-warm);
                text-shadow: 0 0 8px var(--warm-glow);
            }

            &::marker {
                color: var(--marker);
                font-size: xx-large;
            }

            &:has(> h1) {
                &::marker {
                    font-size: xxx-large;
                }
            }
        }

        &> *:not(summary) { padding-left: clamp(0.5em, 3vw, 1.5em); }
        p { margin: 0 0 0.75em 0; }

        &> ul {
            padding-left: 2.5em;
            margin-top: 0.5em;
        }

        li { margin: 0.5em 0; }
        li > ul { margin-bottom: 1.25em; }
    }
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse-glow {
    0%, 100% {
        text-shadow:
            0 0 8px var(--accent-warm),
            0 0 18px var(--warm-glow);
    }
    50% {
        text-shadow:
            0 0 14px var(--accent-warm),
            0 0 32px var(--warm-glow),
            0 0 55px color-mix(in srgb, var(--accent-warm) 35%, transparent);
    }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

footer {
    margin-top: auto;
    margin-bottom: 5pt;
    padding-top: 0.75em;
    text-align: center;
    font-size: 10pt;
    font-family: 'Space Mono', monospace;
    color: var(--accent);
    opacity: 0.4;
    border-top: 1px solid var(--border-subtle);
}

@media (min-width: 480px) {
    h2#tagline {
        margin-left: 20%;
        margin-right: 20%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
    }
}