:root {
    --genesis-bg: #050a0d;
    --genesis-surface: #091216;
    --genesis-ink: #e5eef0;
    --genesis-muted: #82979d;
    --genesis-line: rgba(126, 169, 181, 0.24);
    --genesis-signal: hsl(var(--signal-hue, 214) var(--signal-saturation, 92%) var(--signal-luminance, 56%));
}

.genesis-body {
    margin: 0;
    min-width: 320px;
    min-height: 100svh;
    overflow-x: hidden;
    background: var(--genesis-bg);
    color: var(--genesis-ink);
    font-family: "Avenir Next", "Segoe UI", sans-serif;
}

.genesis-body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.18;
    background-image:
        linear-gradient(rgba(116, 158, 170, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(116, 158, 170, 0.08) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.genesis {
    width: min(100%, 760px);
    min-height: 100svh;
    margin: 0 auto;
    position: relative;
}

.genesis__crown {
    min-height: calc(84px + env(safe-area-inset-top));
    padding: max(14px, env(safe-area-inset-top)) clamp(18px, 5vw, 42px) 12px;
    display: grid;
    grid-template-columns: 52px 1fr auto;
    gap: 14px;
    align-items: center;
    border-bottom: 1px solid var(--genesis-line);
}

.genesis__epsilon {
    color: var(--genesis-signal);
    font: 48px/1 Georgia, serif;
    text-decoration: none;
    text-shadow: 0 0 12px color-mix(in srgb, var(--genesis-signal) 72%, transparent);
    transform: rotate(-6deg);
}

.genesis__integrity {
    display: flex;
    justify-content: center;
    gap: 9px;
}

.genesis__integrity i {
    width: 14px;
    height: 14px;
    display: block;
    border: 1px solid color-mix(in srgb, var(--genesis-signal) 68%, #7a9299);
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    animation: genesis-integrity 9.6s ease-in-out infinite;
}

.genesis__integrity i:nth-child(2) { transform: translateY(-7px); }
.genesis__crown > span { color: var(--genesis-muted); font: 11px/1.2 ui-monospace, monospace; }

.genesis__surface {
    min-height: calc(100svh - 90px - env(safe-area-inset-top));
    padding: clamp(34px, 8vh, 76px) clamp(20px, 7vw, 64px) max(42px, env(safe-area-inset-bottom));
}

.genesis__surface form { max-width: 590px; margin: 0 auto; }
.genesis__surface [data-stage][hidden], .genesis__advanced[hidden] { display: none; }
.genesis__kicker { margin: 0 0 10px; color: #7ca8b4; text-transform: uppercase; font-size: 11px; }

.genesis h1 {
    margin: 0 0 clamp(30px, 7vh, 62px);
    max-width: 13ch;
    font-size: clamp(34px, 9vw, 64px);
    line-height: 1.02;
    font-weight: 350;
    letter-spacing: 0;
}

.genesis__field {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    margin: 18px 0;
    color: var(--genesis-muted);
    font-size: 12px;
}

.genesis__field input:not([type="range"]),
.genesis__field select,
.genesis__field textarea {
    grid-column: 1 / -1;
    width: 100%;
    min-height: 50px;
    border: 0;
    border-bottom: 1px solid var(--genesis-line);
    border-radius: 0;
    padding: 10px 2px;
    background: transparent;
    color: var(--genesis-ink);
    font: 19px/1.4 inherit;
    outline: none;
}

.genesis__field textarea { resize: vertical; }
.genesis__field input:focus, .genesis__field select:focus, .genesis__field textarea:focus { border-color: var(--genesis-signal); }
.genesis__field input[type="range"] { grid-column: 1 / -1; width: 100%; accent-color: var(--genesis-signal); }

.genesis__choices {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin: 34px 0 26px;
    padding: 0;
    border: 0;
}

.genesis__choices legend { width: 100%; margin-bottom: 10px; color: var(--genesis-muted); font-size: 12px; }
.genesis__choices label { min-width: 0; }
.genesis__choices input { position: absolute; opacity: 0; pointer-events: none; }
.genesis__choices span {
    min-height: 48px;
    display: grid;
    place-items: center;
    border: 1px solid var(--genesis-line);
    color: var(--genesis-muted);
    cursor: pointer;
}
.genesis__choices input:checked + span { border-color: var(--genesis-signal); color: var(--genesis-ink); background: color-mix(in srgb, var(--genesis-signal) 12%, transparent); }

.genesis__command,
.genesis__disclosure {
    width: 100%;
    min-height: 54px;
    border: 1px solid color-mix(in srgb, var(--genesis-signal) 62%, #49616a);
    border-radius: 0;
    margin-top: 18px;
    background: color-mix(in srgb, var(--genesis-signal) 13%, #071014);
    color: var(--genesis-ink);
    font: 15px/1 inherit;
    cursor: pointer;
}
.genesis__disclosure { border-color: transparent; background: transparent; color: var(--genesis-muted); }
.genesis__command:disabled { opacity: 0.36; cursor: wait; }

.genesis__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
.genesis__advanced { margin-top: 22px; padding-top: 10px; border-top: 1px solid var(--genesis-line); }
.genesis__names { display: grid; gap: 10px; }
.genesis__names label { position: relative; min-height: 68px; display: grid; place-items: center; border: 1px solid var(--genesis-line); color: var(--genesis-muted); cursor: pointer; }
.genesis__names input { position: absolute; opacity: 0; }
.genesis__names label:has(input:checked) { color: var(--genesis-ink); border-color: var(--genesis-signal); background: color-mix(in srgb, var(--genesis-signal) 10%, transparent); }

.genesis__seal {
    width: clamp(112px, 34vw, 168px);
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    margin: 0 0 34px;
    border: 1px solid var(--genesis-signal);
    transform: rotate(45deg);
    color: var(--genesis-signal);
    font: 14px/1 ui-monospace, monospace;
    box-shadow: inset 0 0 38px color-mix(in srgb, var(--genesis-signal) 12%, transparent);
}
.genesis__seal span { transform: rotate(-45deg); }
.genesis__summary { margin: 24px 0; border-top: 1px solid var(--genesis-line); }
.genesis__summary div { min-height: 44px; display: grid; grid-template-columns: 1fr auto; align-items: center; border-bottom: 1px solid var(--genesis-line); }
.genesis__summary dt { color: var(--genesis-muted); }
.genesis__summary dd { margin: 0; }
.genesis__error { max-width: 590px; margin: 20px auto 0; padding: 14px 0; border-top: 1px solid #9d615b; color: #e1aaa4; }

@keyframes genesis-integrity { 0%, 100% { opacity: 0.38; } 48% { opacity: 1; } }

@media (max-width: 560px) {
    .genesis__surface { padding-top: 38px; }
    .genesis__grid { grid-template-columns: 1fr; }
    .genesis__choices { grid-template-columns: 1fr 1fr; }
    .genesis h1 { margin-bottom: 34px; }
}

@media (prefers-reduced-motion: reduce) {
    .genesis__integrity i { animation: none; opacity: 0.72; }
}