/* ==========================================================================
   NXTcode landing — znep dark glass system (dark-only, deliberate)
   ========================================================================== */

:root {
  /* znep tokens (exact) */
  --color-bg: #09090b;
  --color-panel: #111118;
  --color-panel-elevated: #18181f;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-primary: #8b5cf6;
  --color-primary-hover: #7c3aed;
  --color-primary-soft: rgba(139, 92, 246, 0.15);
  --color-accent: #06b6d4;
  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-danger: #ef4444;
  --color-info: #3b82f6;
  --color-text: #f0e6f5;
  --color-text-dim: #a599b2;
  --color-muted: #7a6e8a;
  --color-surface: #0a0a0c;
  --color-surface-elevated: #14141c;
  --radius-2xl: 1rem;
  --radius-xl: 0.75rem;
  --radius-lg: 0.5rem;
  --radius-md: 0.375rem;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas,
    monospace;
  --gradient-brand: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  --shadow-glow: 0 18px 50px -20px rgba(139, 92, 246, 0.45);
}

/* The page toggles every state with the `hidden` attribute, so no component
   rule may set `display`. This rule is what keeps that true. */
[hidden] { display: none !important; }

*, *::before, *::after { box-sizing: border-box; }

html { color-scheme: dark; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  font: 1rem/1.6 var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2 { margin: 0; line-height: 1.2; letter-spacing: -0.02em; }
p { margin: 0; }

a {
  color: var(--color-text);
  text-decoration-color: color-mix(in srgb, var(--color-primary) 60%, transparent);
  text-underline-offset: 3px;
}

code { font-family: var(--font-mono); font-size: 0.92em; }
.dim { color: var(--color-text-dim); }

.shell {
  width: 100%;
  max-width: 46rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }


.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.aurora {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  will-change: transform;
}

.aurora--violet {
  top: -14rem; left: 50%; width: 34rem; height: 34rem; margin-left: -17rem;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.22), transparent 65%);
  animation: drift-a 26s ease-in-out infinite alternate;
}

.aurora--cyan {
  top: 6rem; right: -10rem; width: 28rem; height: 28rem;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.14), transparent 65%);
  animation: drift-b 32s ease-in-out infinite alternate;
}

.aurora--pink {
  bottom: -12rem; left: -8rem; width: 30rem; height: 30rem;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.12), transparent 65%);
  animation: drift-c 38s ease-in-out infinite alternate;
}

@keyframes drift-a {
  from { transform: translate3d(-4%, 0, 0) scale(1); }
  to { transform: translate3d(6%, 3rem, 0) scale(1.12); }
}
@keyframes drift-b {
  from { transform: translate3d(0, 2rem, 0) scale(1.05); }
  to { transform: translate3d(-5rem, -3rem, 0) scale(1); }
}
@keyframes drift-c {
  from { transform: translate3d(2rem, 0, 0) scale(1); }
  to { transform: translate3d(-4rem, -4rem, 0) scale(1.15); }
}

/* the dot field itself is drawn in app.js on a bare canvas, no library */
.dots {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0.55;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 75%);
}

.vignette {
  position: absolute; inset: 0;
  background:
    radial-gradient(90% 60% at 50% -10%, transparent 40%, rgba(9, 9, 11, 0.75) 100%),
    linear-gradient(180deg, transparent 55%, var(--color-bg) 100%);
}


.topbar {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-panel) 82%, transparent);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
}

.topbar__inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0.5rem 1rem; min-height: 3.5rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.55rem; font-weight: 800; letter-spacing: -0.02em; }

.brand__tile {
  display: grid; place-items: center; width: 1.65rem; height: 1.65rem;
  border-radius: var(--radius-md); background: var(--gradient-brand);
  color: #0b0714; box-shadow: var(--shadow-glow);
}

.brand__name { font-size: 0.95rem; }

.brand__name em {
  font-style: normal; background: var(--gradient-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.status {
  display: inline-flex; align-items: center; gap: 0.5rem; min-width: 0;
  padding: 0.28rem 0.7rem; border: 1px solid var(--color-border);
  border-radius: 999px; background: color-mix(in srgb, var(--color-panel-elevated) 70%, transparent);
  font-size: 0.78rem; font-weight: 600; color: var(--color-text-dim);
}

.status__dot {
  width: 0.45rem; height: 0.45rem; border-radius: 50%; flex: none;
  background: var(--color-info);
}

#status-text { min-width: 0; overflow-wrap: anywhere; }

.status[data-tone="ok"] { color: var(--color-success); }
.status[data-tone="warn"] { color: var(--color-warning); }
.status[data-tone="bad"] { color: var(--color-danger); }
.status[data-tone="ok"] .status__dot { background: var(--color-success); }
.status[data-tone="warn"] .status__dot { background: var(--color-warning); }
.status[data-tone="bad"] .status__dot { background: var(--color-danger); }

.status[data-tone="info"] .status__dot,
.status[data-tone="ok"] .status__dot { animation: blink 1.8s ease-in-out infinite; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }


.stage { flex: 1; padding: clamp(2.5rem, 8vw, 5rem) 0 2rem; }

.wordmark {
  font-size: clamp(2.6rem, 9vw, 3.75rem); font-weight: 800;
  letter-spacing: -0.045em; text-align: center;
}

.grad {
  background: var(--gradient-brand); -webkit-background-clip: text;
  background-clip: text; color: transparent;
}

.tagline {
  margin: 0.6rem auto 2rem; max-width: 26rem; text-align: center;
  font-size: 0.95rem; color: var(--color-text-dim);
}


@property --angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }

.card {
  position: relative;
  padding: clamp(1.25rem, 4vw, 1.75rem);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.9);
}

/* rotating conic gradient clipped to the 1px border (ReactBits-style shimmer) */
.card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit;
  padding: 1px; pointer-events: none;
  background: conic-gradient(
    from var(--angle),
    rgba(139, 92, 246, 0) 0deg,
    rgba(139, 92, 246, 0.75) 70deg,
    rgba(6, 182, 212, 0.65) 150deg,
    rgba(139, 92, 246, 0) 260deg,
    rgba(139, 92, 246, 0) 360deg
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: ring-spin 7s linear infinite;
}

@keyframes ring-spin { to { --angle: 360deg; } }

/* pointer-tracked spotlight */
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  pointer-events: none; opacity: var(--glow, 0); transition: opacity 320ms ease;
  background: radial-gradient(
    18rem 18rem at var(--mx, 50%) var(--my, 0%),
    rgba(139, 92, 246, 0.12), transparent 70%
  );
}

.panel {
  display: flex; flex-direction: column; gap: 1.15rem;
  animation: rise 420ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: none; }
}


/* the gate: what the page is, who it is for, and the two ways forward */
.gate { display: flex; flex-direction: column; gap: 0.5rem; }
.gate h2 { font-size: 1.25rem; }

.gate__lede {
  margin-top: 0.2rem; max-width: 46ch;
  font-size: 0.92rem; line-height: 1.65; color: var(--color-text-dim);
}

/* context pill: who the release is for, set right above the buttons */
.gate__badge {
  display: inline-flex; align-items: center; gap: 0.5rem; align-self: flex-start;
  padding: 0.3rem 0.75rem; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-accent) 35%, transparent);
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  color: var(--color-accent); font-size: 0.75rem; font-weight: 650; letter-spacing: 0.03em;
}

.gate__badge-dot {
  width: 0.4rem; height: 0.4rem; border-radius: 50%; flex: none;
  background: var(--color-accent); box-shadow: 0 0 0.5rem var(--color-accent);
  animation: blink 2.4s ease-in-out infinite;
}

/* two real buttons: one obvious primary action, one honest explanation */
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.65rem; }

/* a disclosure, not a modal. No `display` rule here, so the page-wide
   `[hidden] { display: none !important }` reset keeps it closed */
.why {
  padding: 0.85rem 1rem; border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--color-surface) 60%, transparent);
  animation: rise 320ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.why ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 0.45rem;
}

.why li {
  position: relative; padding-left: 1.05rem;
  font-size: 0.875rem; line-height: 1.55; color: var(--color-text-dim);
}

.why li::before {
  content: ""; position: absolute; left: 0.05rem; top: 0.55em;
  width: 0.34rem; height: 0.34rem; border-radius: 50%; background: var(--color-accent);
}


.lead { display: flex; align-items: flex-start; gap: 0.9rem; }
.lead h2 { font-size: 1.1rem; }

.lead__text { margin-top: 0.3rem; font-size: 0.92rem; color: var(--color-text-dim); }

.sigil {
  display: grid; place-items: center; width: 2.4rem; height: 2.4rem; flex: none;
  border-radius: var(--radius-lg); background: var(--gradient-brand); color: #0b0714;
}

.sigil svg { width: 1.15rem; height: 1.15rem; }

.sigil--live {
  background: var(--color-primary-soft);
  border: 1px solid color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.sigil--ok {
  background: color-mix(in srgb, var(--color-success) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-success) 45%, transparent);
  color: var(--color-success);
}

.sigil--danger {
  background: color-mix(in srgb, var(--color-danger) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-danger) 45%, transparent);
  color: var(--color-danger);
}

.pulse { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--color-primary); animation: pulse 1.3s ease-out infinite; }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-primary) 70%, transparent); }
  100% { box-shadow: 0 0 0 0.7rem transparent; }
}


.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font: inherit; font-weight: 650; font-size: 0.95rem; line-height: 1.2;
  padding: 0.75rem 1.15rem; border-radius: var(--radius-lg);
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: background-color 140ms ease, border-color 140ms ease, filter 140ms ease;
}

/* icons are inline SVG; the class carries every stroke attribute */
.i {
  width: 1.05rem; height: 1.05rem; flex: none; fill: none; stroke: currentColor;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}

.btn--primary {
  font-size: 1.0625rem; font-weight: 700; padding: 0.85rem 1.4rem;
  color: #0b0714; background: var(--gradient-brand); box-shadow: var(--shadow-glow);
}

.btn--sm { font-size: 0.875rem; padding: 0.5rem 0.85rem; align-self: flex-start; }

/* the second action: same shape as the primary, quieter surface */
.btn--secondary {
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-panel-elevated) 72%, transparent);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  border-color: color-mix(in srgb, var(--color-primary) 45%, transparent);
  box-shadow: 0 10px 26px -18px rgba(0, 0, 0, 0.9);
  transform: translateY(-1px);
}

.btn--ghost { color: var(--color-text-dim); background: transparent; border-color: var(--color-border); }
.btn--ghost:hover { color: var(--color-text); border-color: color-mix(in srgb, var(--color-primary) 45%, transparent); }
.btn[disabled] { opacity: 0.5; cursor: progress; }

/* the primary keeps its background on hover; only the glow grows */
.btn--primary:hover {
  background: var(--gradient-brand);
  box-shadow: 0 14px 34px -14px rgba(139, 92, 246, 0.6), var(--shadow-glow);
}


.track { height: 0.25rem; border-radius: 999px; background: rgba(255, 255, 255, 0.07); overflow: hidden; }

.track__fill {
  display: block; height: 100%; width: 0%; border-radius: inherit;
  background: var(--gradient-brand); transition: width 400ms ease;
}


.fallback { font-size: 0.85rem; color: var(--color-text-dim); }
.fallback summary { cursor: pointer; width: fit-content; }

.fallback__body {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-top: 0.65rem;
}

.fallback__body input {
  flex: 1 1 14rem; min-width: 0; padding: 0.5rem 0.65rem; color: var(--color-text);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); font-family: var(--font-mono); font-size: 0.78rem;
}

.fallback code {
  display: block; margin-top: 0.5rem; padding: 0.6rem 0.7rem;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); overflow-wrap: anywhere;
}

.fallback__status { margin-top: 0.4rem; font-size: 0.78rem; color: var(--color-success); }


.version {
  font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700;
  letter-spacing: -0.01em; font-variant-numeric: tabular-nums;
}

.tally { font-size: 0.82rem; color: var(--color-text-dim); }
.group { margin-top: 1.1rem; }
.group:first-of-type { margin-top: 0; }

.group__title {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.09em; color: var(--color-muted); margin-bottom: 0.5rem;
}

.rows { display: flex; flex-direction: column; gap: 0.5rem; list-style: none; margin: 0; padding: 0; }

.row {
  display: flex; align-items: center; gap: 0.75rem 1rem; flex-wrap: wrap;
  padding: 0.7rem 0.85rem; border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--color-panel-elevated) 55%, transparent);
  animation: rise 380ms cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: calc(var(--i, 0) * 55ms);
}

.row:hover { border-color: color-mix(in srgb, var(--color-primary) 35%, transparent); }
.row__main { flex: 1 1 13rem; min-width: 0; }
.row__name { font-family: var(--font-mono); font-size: 0.86rem; overflow-wrap: anywhere; }

.row__meta { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.3rem; font-size: 0.78rem; color: var(--color-text-dim); }

.tag {
  font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0.08rem 0.4rem; border-radius: var(--radius-md);
  border: 1px solid var(--color-border); color: var(--color-text-dim);
}

.tag--os { color: var(--color-accent); border-color: color-mix(in srgb, var(--color-accent) 40%, transparent); }

.row__action { display: flex; flex-direction: column; align-items: flex-end; gap: 0.3rem; margin-left: auto; }

.row__status { font-size: 0.75rem; color: var(--color-text-dim); max-width: 14rem; text-align: right; }
.row__status--ok { color: var(--color-success); }
.row__status--bad { color: var(--color-danger); }


.addons { margin-top: 1.1rem; }
.addons .group__title { margin-bottom: 0.5rem; }

.addon__desc {
  margin: 0.3rem 0 0; font-size: 0.85rem; line-height: 1.55;
  color: var(--color-text-dim); overflow-wrap: anywhere;
}

.addon__empty { font-size: 0.88rem; color: var(--color-text-dim); }

.addon__spec {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem;
  margin-top: 0.55rem;
}

.addon__spec code {
  padding: 0.3rem 0.55rem; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); background: var(--color-surface);
  font-family: var(--font-mono); font-size: 0.76rem; color: var(--color-text);
  overflow-wrap: anywhere;
}

.addon__spec .row__status { max-width: none; text-align: left; flex: 1 1 100%; }


.identity {
  display: flex; align-items: center; gap: 0.7rem; margin-top: 0.9rem;
  padding: 0.55rem 0.7rem; border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in srgb, var(--color-panel) 60%, transparent);
  font-size: 0.85rem; animation: rise 380ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.identity__avatar {
  display: grid; place-items: center; width: 1.9rem; height: 1.9rem; flex: none;
  border-radius: 50%; background: var(--gradient-brand); color: #0b0714;
  font-size: 0.8rem; font-weight: 800;
}

.identity__text { display: flex; flex-direction: column; line-height: 1.35; min-width: 0; }
.identity .dim { font-size: 0.78rem; overflow-wrap: anywhere; }
.identity .btn { margin-left: auto; align-self: auto; }


.footer { border-top: 1px solid var(--color-border); padding: 1.25rem 0; font-size: 0.8rem; }

.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer__links { display: flex; gap: 1rem; }
.footer__links a { color: var(--color-text-dim); text-decoration: none; }
.footer__links a:hover, .footer__links a:focus-visible { color: var(--color-text); }


.skeleton {
  display: block; height: 1rem; border-radius: var(--radius-md);
  background: linear-gradient(90deg,
    rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.045));
  background-size: 200% 100%; animation: shimmer 1.6s linear infinite;
}

.skeleton--line { width: min(20rem, 100%); }
.skeleton--short { width: min(12rem, 60%); }

.skeleton--row { height: 3.2rem; border-radius: var(--radius-xl); margin-top: 0.5rem; }

@keyframes shimmer { to { background-position: -200% 0; } }


.card--noscript {
  margin: 1.5rem auto; max-width: 34rem;
  border-color: color-mix(in srgb, var(--color-danger) 35%, transparent);
}

.card--noscript h2 { font-size: 1rem; color: var(--color-danger); margin-bottom: 0.35rem; }
.card--noscript p { font-size: 0.9rem; color: var(--color-text-dim); }


@media (max-width: 420px) {
  .shell { padding-inline: 1rem; }
  .btn--primary { width: 100%; }
  .cta { gap: 0.55rem; }
  .cta .btn { width: 100%; }
  .row__action { align-items: flex-start; margin-left: 0; width: 100%; }
  .row__status { max-width: none; text-align: left; }
  .identity .btn { margin-left: 0; }
}


@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .card::before { background: color-mix(in srgb, var(--color-primary) 40%, transparent); }
  .dots { display: none; }
  .skeleton { background: rgba(255, 255, 255, 0.07); }
}