/* Reset / base */
* {
    box-sizing: border-box;
}
html,
body {
    height: 100%;
}
body {
    margin: 0;
    font-family:
        "Space Grotesk",
        ui-sans-serif,
        system-ui,
        -apple-system,
        Segoe UI,
        Roboto,
        "Helvetica Neue",
        Arial,
        "Apple Color Emoji",
        "Segoe UI Emoji";
    color: #e8e8e8;
    background: #0b0b0b;
    line-height: 1.2;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

:root {
    --bg: #0b0b0b;
    --text: #e8e8e8;
    --muted: #9b9b9b;
    /* Atomic neon palette */
    --nuke: #ffd400; /* nuclear hazard yellow */
    --accent: #ff00f5; /* magenta */
    --accent-2: #00ffe0; /* cyan */
    --accent-3: #b3ff00; /* acid lime */
    --ring: 0 0 0 8px color-mix(in oklab, transparent 90%, var(--accent-2));
    --radius: 16px;
}

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px clamp(16px, 4vw, 40px);
    z-index: 20;
    pointer-events: none;
}
.brand {
    pointer-events: auto;
    font-weight: 700;
    letter-spacing: 0.4px;
    color: #fff;
    text-transform: lowercase;
    font-size: clamp(16px, 2.2vw, 22px);
}

.backdrop {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(
            1200px 600px at 60% 10%,
            color-mix(in oklab, var(--nuke) 28%, transparent),
            transparent 60%
        ),
        radial-gradient(
            900px 500px at 20% 60%,
            color-mix(in oklab, var(--accent-2) 24%, transparent),
            transparent 60%
        ),
        radial-gradient(
            700px 400px at 80% 80%,
            color-mix(in oklab, var(--accent) 18%, transparent),
            transparent 65%
        ),
        linear-gradient(180deg, #0b0b0b 10%, #070707 100%);
    filter: saturate(1.12) contrast(1.06);
    z-index: -1;
}
.backdrop::before,
.backdrop::after {
    content: "";
    position: absolute;
    inset: auto;
    width: 70vmax;
    height: 70vmax;
    border-radius: 50%;
    pointer-events: none;
    mix-blend-mode: screen;
    filter: blur(80px) saturate(140%);
    opacity: 0.25;
}
.backdrop::before {
    left: -20vmax;
    top: -10vmax;
    background: radial-gradient(
        closest-side,
        color-mix(in oklab, var(--accent) 60%, transparent),
        transparent 70%
    );
    animation: drift-a 18s ease-in-out infinite alternate;
}
.backdrop::after {
    right: -10vmax;
    bottom: -10vmax;
    background: radial-gradient(
        closest-side,
        color-mix(in oklab, var(--accent-2) 60%, transparent),
        transparent 70%
    );
    animation: drift-b 22s ease-in-out infinite alternate;
}
@keyframes drift-a {
    from {
        transform: translate(0, 0) scale(1);
    }
    to {
        transform: translate(6vmax, 4vmax) scale(1.08);
    }
}
@keyframes drift-b {
    from {
        transform: translate(0, 0) scale(1);
    }
    to {
        transform: translate(-4vmax, -6vmax) scale(0.92);
    }
}

.hero {
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding: clamp(64px, 8vw, 120px) clamp(16px, 4vw, 40px);
}
.hero__content {
    max-width: 1200px;
    width: 100%;
}

.headline {
    margin: 0 0 clamp(28px, 4vh, 48px);
    font-weight: 700;
    letter-spacing: -0.02em;
}
.headline__accent {
    display: block;
    font-size: clamp(36px, 8vw, 104px);
    line-height: 0.95;
    background: linear-gradient(
        92deg,
        #ffffff 0%,
        color-mix(in oklab, var(--nuke) 75%, #fff) 40%,
        var(--accent-2) 92%
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 14px 42px rgba(255, 212, 0, 0.18))
        drop-shadow(0 10px 28px rgba(0, 255, 224, 0.14));
}
.headline__secondary {
    display: block;
    font-size: clamp(18px, 2.3vw, 28px);
    font-weight: 400;
    color: #d9d9d9;
    opacity: 0.92;
    margin-top: clamp(10px, 1.5vh, 14px);
}

.cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    -webkit-appearance: none;
    appearance: none;
    border: 0;
    cursor: pointer;
    padding: 14px 22px;
    border-radius: 999px;
    font-weight: 600;
    text-transform: lowercase;
    letter-spacing: 0.4px;
    transition:
        transform 200ms ease,
        box-shadow 200ms ease,
        background 200ms ease,
        color 200ms ease;
}
.btn:focus-visible {
    outline: none;
    box-shadow: var(--ring);
}
.btn--primary {
    color: #0b0b0b;
    background: linear-gradient(92deg, var(--nuke), var(--accent-2));
    box-shadow:
        0 10px 32px rgba(255, 212, 0, 0.2),
        0 8px 28px rgba(0, 255, 224, 0.22);
}
.btn--primary:hover {
    transform: translateY(-1px);
}
.btn--ghost {
    background: color-mix(in oklab, #ffffff 6%, transparent);
    color: #e8e8e8;
    border: 1px solid color-mix(in oklab, #ffffff 16%, transparent);
}

.site-footer {
    padding: clamp(32px, 4vw, 48px) clamp(16px, 4vw, 40px);
    border-top: 1px solid color-mix(in oklab, #ffffff 10%, transparent);
}
.footer-copy {
    color: #bdbdbd;
    font-size: clamp(13px, 1.5vw, 15px);
    line-height: 1.5;
    max-width: 980px;
    margin: 0 auto;
}
.footer-copy .ambiguous {
    display: inline-block;
    margin-left: 0.5ch;
    color: #a6a6a6;
    text-decoration: none;
    border-bottom: 1px dotted color-mix(in oklab, #ffffff 25%, transparent);
}
.footer-copy .ambiguous:hover {
    color: #e8e8e8;
    border-bottom-color: #e8e8e8;
}
/* Social links */
.social {
    max-width: 980px;
    margin: 12px auto 0;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.social__link {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: color-mix(in oklab, #ffffff 6%, transparent);
    border: 1px solid color-mix(in oklab, #ffffff 16%, transparent);
    color: #e8e8e8;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    text-transform: lowercase;
    letter-spacing: 0.3px;
    transition:
        transform 150ms ease,
        background 150ms ease,
        color 150ms ease,
        box-shadow 150ms ease,
        border-color 150ms ease;
}
.social__link:hover {
    transform: translateY(-1px);
    background: linear-gradient(
        92deg,
        color-mix(in oklab, #ffffff 8%, transparent),
        color-mix(in oklab, var(--accent-2) 10%, transparent)
    );
    color: #ffffff;
    border-color: color-mix(in oklab, #ffffff 26%, transparent);
    box-shadow:
        0 10px 32px rgba(255, 212, 0, 0.12),
        0 8px 28px rgba(0, 255, 224, 0.16);
}
.social__link:focus-visible {
    outline: none;
    box-shadow: var(--ring);
}

/* Modal */
.modal::backdrop {
    background: color-mix(in oklab, #000 68%, transparent);
}
.modal {
    border: 0;
    padding: 0;
    background: transparent;
}
.modal[open] .modal__card {
    animation: pop 220ms ease-out;
}
@keyframes pop {
    from {
        transform: translateY(8px) scale(0.98);
        opacity: 0;
    }
    to {
        transform: none;
        opacity: 1;
    }
}

.modal__card {
    width: min(80vw, 320px);
    background: color-mix(in oklab, #ffffff 4%, var(--bg));
    border: 1px solid color-mix(in oklab, #ffffff 12%, transparent);
    border-radius: var(--radius);
    padding: 22px 22px 18px;
    position: relative;
    box-shadow:
        0 16px 60px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}
.modal__title {
    margin: 2px 36px 14px 2px;
    font-size: 20px;
    font-weight: 600;
    color: var(--nuke);
    display: flex;
    align-items: center;
    gap: 8px;
}
.modal .btn--primary {
    background: linear-gradient(92deg, var(--nuke), var(--accent-2));
    color: #0b0b0b;
}
.modal__close {
    position: absolute;
    top: 8px;
    right: 8px;
    border: 0;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: color-mix(in oklab, #ffffff 4%, transparent);
    color: #e8e8e8;
    cursor: pointer;
}
.modal__close:hover {
    background: color-mix(in oklab, #ffffff 8%, transparent);
}

.field {
    margin: 8px 0 16px;
}
.input {
    width: 100%;
    padding: 16px 18px;
    border-radius: 14px;
    background: color-mix(in oklab, #ffffff 3%, transparent);
    border: 1px solid color-mix(in oklab, #ffffff 12%, transparent);
    color: var(--text);
    font-size: 16px;
}
.input::placeholder {
    color: color-mix(in oklab, #ffffff 45%, #8a8a8a);
}
.input:focus {
    outline: none;
    box-shadow: var(--ring);
}

.actions {
    display: flex;
    gap: 10px;
}
.hint {
    margin: 10px 2px 0;
    color: var(--muted);
    font-size: 12px;
}

/* Toast */
.toast {
    position: fixed;
    left: 50%;
    bottom: 26px;
    transform: translateX(-50%) translateY(16px);
    background: #101010;
    color: #e8e8e8;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid color-mix(in oklab, #ffffff 12%, transparent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    opacity: 0;
    pointer-events: none;
    transition:
        opacity 0.2s ease,
        transform 0.2s ease;
    font-size: 13px;
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Responsive niceties */
@media (max-width: 520px) {
    .headline__secondary {
        font-size: clamp(16px, 4.4vw, 20px);
    }
}