/* =========================================================================
   Farebright — playfarebright.com

   The atmosphere is entirely abstract: gradients, starfields and embers.
   Nothing here depicts the game, because the game's art does not exist yet.

   Motion is driven by two custom properties set from JS —
     --px / --py   pointer offset, -1..1
     --scroll      scroll progress through the hero, 0..1
   which lets every parallax layer be pure CSS.
   ========================================================================= */

/* ---------- Tokens ---------- */
:root {
  --ink:        #06040b;
  --night:      #0b0912;
  --line:       #262036;
  --line-lit:   #3a3055;

  --ember:      #ffb454;
  --ember-lit:  #ffd79a;
  --ember-hot:  #ff9a3c;
  --violet:     #8b6ad6;
  --arcane:     #67d5e0;
  --moss:       #6fbf8b;
  --blood:      #d9533f;

  --text:       #ece7f7;
  --text-dim:   #b3aacb;
  --text-faint: #7d7597;

  --font-display: "Silkscreen", "Courier New", ui-monospace, monospace;
  --font-body: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --gutter: clamp(1.5rem, 6vw, 3rem);
  --measure: 40rem;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  /* Live motion inputs, overwritten by JS. Defaults keep the page correct
     with JS disabled or motion reduced. */
  --px: 0;
  --py: 0;
  --scroll: 0;

  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 3rem;
}

body {
  background: var(--night);
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(1rem, .95rem + .2vw, 1.075rem);
  line-height: 1.65;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

svg { display: block; }
button, input { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
ul { list-style: none; padding: 0; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  text-wrap: balance;
}
p { text-wrap: pretty; }

:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 2px;
}
::selection { background: var(--ember); color: var(--ink); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

.skip-link {
  position: absolute; top: 0; left: 50%;
  transform: translate(-50%, -120%);
  z-index: 60;
  background: var(--ember); color: var(--ink);
  font-family: var(--font-display); font-size: .8rem;
  padding: .75rem 1.25rem;
  text-decoration: none;
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* =========================================================================
   Sky — the parallax stack
   ========================================================================= */
.sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(140% 100% at 50% 118%, #43285a 0%, #241a3c 34%, #120e1f 62%, var(--night) 84%);
}

.sky-layer,
.sky-aurora,
.sky-dawn {
  position: absolute;
  /* Oversized so parallax translation never exposes an edge. */
  inset: -12%;
  will-change: transform;
}

/* Three starfields at different scales. Depth is expressed by size, opacity
   and how far each one moves. */
.sky-layer {
  background-repeat: repeat;
  transform:
    translate3d(
      calc(var(--px) * var(--depth, 8) * -1px),
      calc(var(--py) * var(--depth, 8) * -1px + var(--scroll) * var(--drift, 40px)),
      0
    );
}

.sky-deep {
  --depth: 4;
  --drift: 30px;
  opacity: .45;
  background-image:
    radial-gradient(1px 1px at 10% 12%, #fff4d6 50%, transparent 50%),
    radial-gradient(1px 1px at 27% 44%, #fff4d6 50%, transparent 50%),
    radial-gradient(1px 1px at 41% 19%, #e8dcff 50%, transparent 50%),
    radial-gradient(1px 1px at 63% 33%, #fff4d6 50%, transparent 50%),
    radial-gradient(1px 1px at 79% 8%,  #fff4d6 50%, transparent 50%),
    radial-gradient(1px 1px at 88% 51%, #d9ccff 50%, transparent 50%),
    radial-gradient(1px 1px at 15% 71%, #fff4d6 50%, transparent 50%),
    radial-gradient(1px 1px at 52% 82%, #fff4d6 50%, transparent 50%),
    radial-gradient(1px 1px at 71% 66%, #e8dcff 50%, transparent 50%),
    radial-gradient(1px 1px at 94% 88%, #fff4d6 50%, transparent 50%);
  background-size: 100% 100%;
}

.sky-mid {
  --depth: 10;
  --drift: 60px;
  opacity: .6;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 28%, #fff8e8 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 46% 61%, #ffe9c2 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 68% 14%, #fff8e8 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 84% 39%, #e8dcff 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 31% 88%, #fff8e8 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 8%  55%, #ffe9c2 50%, transparent 50%);
  background-size: 100% 100%;
  animation: twinkle 7s ease-in-out infinite alternate;
}

.sky-near {
  --depth: 20;
  --drift: 110px;
  opacity: .85;
  background-image:
    radial-gradient(2px 2px at 24% 20%, #fff8e8 50%, transparent 50%),
    radial-gradient(2px 2px at 59% 47%, #ffd79a 50%, transparent 50%),
    radial-gradient(2px 2px at 87% 72%, #fff8e8 50%, transparent 50%),
    radial-gradient(2px 2px at 12% 84%, #ffd79a 50%, transparent 50%);
  background-size: 100% 100%;
  animation: twinkle 5s ease-in-out infinite alternate-reverse;
}

@keyframes twinkle {
  from { opacity: .35; }
  to   { opacity: .9; }
}

/* A slow wash of colour, so the sky is never flat. */
.sky-aurora {
  opacity: .5;
  background:
    radial-gradient(52% 34% at 22% 28%, rgba(139, 106, 214, .30), transparent 70%),
    radial-gradient(46% 30% at 78% 18%, rgba(103, 213, 224, .16), transparent 72%),
    radial-gradient(60% 38% at 60% 62%, rgba(255, 154, 60, .12), transparent 70%);
  filter: blur(8px);
  transform: translate3d(
    calc(var(--px) * -6px),
    calc(var(--py) * -6px + var(--scroll) * 40px),
    0
  );
  animation: drift 26s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to   { transform: translate3d(2%, -1.5%, 0) scale(1.08); }
}

/* The horizon glow — the "bright" in Farebright. Breathes slowly. */
.sky-dawn {
  inset: auto -12% -18% -12%;
  height: 62%;
  background:
    radial-gradient(58% 100% at 50% 100%, rgba(255, 180, 84, .30), transparent 70%),
    radial-gradient(90% 100% at 50% 108%, rgba(255, 122, 60, .18), transparent 72%);
  transform: translate3d(0, calc(var(--scroll) * 26px), 0);
  animation: breathe 9s ease-in-out infinite alternate;
}

@keyframes breathe {
  from { opacity: .72; }
  to   { opacity: 1; }
}

/* Embers, injected by JS. Each drifts up on its own schedule. */
.sky-embers { position: absolute; inset: 0; }

.ember {
  position: absolute;
  bottom: -6vh;
  width: 2px;
  height: 2px;
  background: var(--ember);
  box-shadow: 0 0 6px 1px rgba(255, 180, 84, .55);
  opacity: 0;
  animation: rise var(--dur, 16s) linear var(--delay, 0s) infinite;
}

@keyframes rise {
  0%   { transform: translate3d(0, 0, 0) scale(.6); opacity: 0; }
  12%  { opacity: var(--peak, .8); }
  70%  { opacity: var(--peak, .8); }
  100% { transform: translate3d(var(--sway, 20px), -108vh, 0) scale(1); opacity: 0; }
}

/* Film grain, as an inline SVG so it costs one tiny data URI. */
.sky-grain {
  position: absolute;
  inset: -50%;
  opacity: .16;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 700ms steps(4) infinite;
}

@keyframes grain {
  0%   { transform: translate3d(0, 0, 0); }
  25%  { transform: translate3d(-2%, 1%, 0); }
  50%  { transform: translate3d(1%, -2%, 0); }
  75%  { transform: translate3d(-1%, -1%, 0); }
  100% { transform: translate3d(2%, 2%, 0); }
}

.sky-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 50% 45%, transparent 42%, rgba(6, 4, 11, .62) 100%);
}

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: clamp(4rem, 14vh, 8rem);
}

.hero-inner {
  /* Content drifts up very slightly faster than the sky. */
  transform: translate3d(0, calc(var(--scroll) * -30px), 0);
  opacity: calc(1 - var(--scroll) * .55);
  text-align: center;
}

/* Centring the hero makes it read as a title card rather than a column of
   copy adrift in a wide viewport. */
.hero-inner .mark-row { justify-content: center; }
.hero-inner .sub { margin-inline: auto; }
.hero-inner .signup { max-width: 30rem; margin-inline: auto; }
.hero-inner .field { justify-content: center; }

/* ---------- Entrance choreography ---------- */
[data-enter] {
  opacity: 0;
  transform: translate3d(0, 14px, 0);
}
.is-ready [data-enter] {
  animation: enter .9s var(--ease-out) forwards;
  animation-delay: calc(var(--enter-step, 0) * 90ms + 120ms);
}
[data-enter="1"] { --enter-step: 0; }
[data-enter="2"] { --enter-step: 1; }
[data-enter="3"] { --enter-step: 2; }
[data-enter="4"] { --enter-step: 3; }
[data-enter="5"] { --enter-step: 4; }
[data-enter="6"] { --enter-step: 6; }

@keyframes enter {
  to { opacity: 1; transform: none; }
}

/* Without JS nothing animates in, so show everything immediately. */
.no-js [data-enter] { opacity: 1; transform: none; }

/* ---------- Mark ---------- */
.mark-row {
  display: flex;
  align-items: center;
  gap: .9rem;
  margin-bottom: 2.25rem;
}

.mark-wrap {
  position: relative;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.mark-wrap::before {
  content: "";
  position: absolute;
  width: 3.2rem; height: 3.2rem;
  background: radial-gradient(circle, rgba(255, 180, 84, .35), transparent 68%);
  animation: haze 4.5s ease-in-out infinite alternate;
}
@keyframes haze {
  from { opacity: .55; transform: scale(.86); }
  to   { opacity: 1;   transform: scale(1.12); }
}

.mark {
  position: relative;
  width: 30px; height: 30px;
  image-rendering: pixelated;
  filter: drop-shadow(0 0 8px rgba(255, 180, 84, .5));
}
.flame-core { animation: flicker 2.6s steps(3, end) infinite; }
.flame-tip  { animation: flicker 3.4s steps(3, end) infinite reverse; }
@keyframes flicker {
  0%, 100% { opacity: 1; }
  34% { opacity: .72; }
  55% { opacity: 1; }
  78% { opacity: .85; }
}

.status {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-size: .62rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ember-lit);
}
.status .dot {
  width: 6px; height: 6px;
  background: var(--ember);
  box-shadow: 0 0 8px var(--ember);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }

/* ---------- Title ---------- */
.title {
  font-size: clamp(2.7rem, 13vw, 5rem);
  letter-spacing: -.01em;
  margin-bottom: 1.6rem;
  /* A hair of pointer-tracked shift, so the wordmark feels lit from a
     moving source rather than pasted on. */
  transform: translate3d(calc(var(--px) * 5px), calc(var(--py) * 3px), 0);
}
.title-word { display: inline-block; }
.title .accent {
  color: var(--ember);
  animation: glow 6s ease-in-out infinite alternate;
}
@keyframes glow {
  from { text-shadow: 0 3px 0 rgba(6, 4, 11, .6), 0 0 26px rgba(255, 180, 84, .35); }
  to   { text-shadow: 0 3px 0 rgba(6, 4, 11, .6), 0 0 54px rgba(255, 180, 84, .75); }
}
.title-word:not(.accent) {
  text-shadow: 0 3px 0 rgba(6, 4, 11, .6), 0 0 34px rgba(236, 231, 247, .18);
}

/* ---------- Copy ---------- */
.lede {
  font-family: var(--font-body);
  font-size: clamp(1.2rem, 3.6vw, 1.5rem);
  font-weight: 200;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 1.1rem;
}
.lede-soft { color: var(--text-dim); }

.sub {
  color: var(--text-dim);
  margin-bottom: 2.4rem;
  max-width: 30rem;
}

/* ---------- Signup ---------- */
.signup { position: relative; }

.signup .field {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
}

.signup input[type="email"] {
  flex: 1 1 13rem;
  min-width: 0;
  padding: 1rem 1.15rem;
  background: rgba(6, 4, 11, .55);
  border: 2px solid var(--line);
  color: var(--text);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: border-color .25s var(--ease), background-color .25s var(--ease),
              box-shadow .25s var(--ease);
}
.signup input[type="email"]::placeholder { color: var(--text-faint); }
.signup input[type="email"]:hover { border-color: var(--line-lit); }
.signup input[type="email"]:focus {
  border-color: var(--ember);
  outline: none;
  background: rgba(255, 180, 84, .06);
  box-shadow: 0 0 0 4px rgba(255, 180, 84, .1);
}
.signup input[type="email"][aria-invalid="true"] {
  border-color: var(--blood);
  box-shadow: 0 0 0 4px rgba(217, 83, 63, .12);
}

.signup button {
  position: relative;
  flex: 0 0 auto;
  overflow: hidden;
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .04em;
  padding: 1rem 1.5rem;
  background: var(--ember);
  color: var(--ink);
  border: 2px solid var(--ember);
  transition: transform .16s var(--ease), background-color .2s var(--ease),
              border-color .2s var(--ease), box-shadow .25s var(--ease);
}
/* A sweep of light across the button on hover. */
.signup button::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 -60%;
  width: 45%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-18deg);
  transition: left .55s var(--ease-out);
}
.signup button:hover::after { left: 115%; }
.signup button:hover {
  transform: translateY(-2px);
  background: var(--ember-lit);
  border-color: var(--ember-lit);
  box-shadow: 0 10px 34px -10px rgba(255, 180, 84, .8);
}
.signup button:active { transform: translateY(0); }
.signup button[disabled] { opacity: .65; cursor: default; transform: none; box-shadow: none; }
.signup button[disabled]::after { display: none; }

.btn-spinner {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 1rem; height: 1rem;
  border: 2px solid rgba(6, 4, 11, .25);
  border-top-color: var(--ink);
  border-radius: 50%;
  opacity: 0;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.signup.is-busy .btn-label { opacity: 0; }
.signup.is-busy .btn-spinner { opacity: 1; }

@media (max-width: 430px) {
  .signup .field > * { flex: 1 1 100%; }
}

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Challenge ---------- */
.challenge {
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(6, 4, 11, .5);
  animation: enter .5s var(--ease-out) both;
}
.challenge[hidden] { display: none; }
.challenge-note {
  font-size: .85rem;
  color: var(--text-dim);
  margin-bottom: .7rem;
}

/* ---------- Form feedback ---------- */
.form-status {
  min-height: 1.4em;
  margin-top: .9rem;
  font-size: .92rem;
  color: var(--text-dim);
  transition: color .2s var(--ease);
}
.form-status.is-error { color: var(--blood); }
.form-status.is-success { color: var(--moss); }

.form-fine {
  margin-top: .45rem;
  font-size: .84rem;
  color: var(--text-faint);
}

.signup.is-done .field,
.signup.is-done .challenge,
.signup.is-done .form-fine { display: none; }
.signup.is-done .form-status {
  margin-top: 0;
  font-size: 1.05rem;
}

.shake { animation: shake .4s var(--ease); }
@keyframes shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-6px); }
  40%, 60% { transform: translateX(6px); }
}

/* ---------- Scroll cue ---------- */
.scroll-cue {
  position: absolute;
  bottom: 1.75rem; left: 50%;
  translate: -50% 0;
  width: 2rem; height: 3rem;
  display: grid; place-items: center;
  opacity: calc(1 - var(--scroll) * 2.5);
}
.scroll-cue-line {
  width: 2px; height: 2.2rem;
  background: linear-gradient(to bottom, transparent, var(--ember));
  transform-origin: bottom;
  animation: cue 2.2s var(--ease) infinite;
}
@keyframes cue {
  0%   { transform: scaleY(0); opacity: 0; }
  40%  { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1) translateY(60%); opacity: 0; }
}
@media (max-height: 720px) { .scroll-cue { display: none; } }

/* =========================================================================
   Second panel
   ========================================================================= */
.more {
  position: relative;
  padding-block: clamp(5rem, 16vh, 9rem);
}

.more-title {
  font-size: clamp(1.1rem, 3.2vw, 1.4rem);
  color: var(--text);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.more-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--line-lit), transparent);
}

.promises { display: grid; gap: 2rem; }

.promises li {
  position: relative;
  padding-left: 3.25rem;
}
.promise-index {
  position: absolute;
  left: 0; top: .1rem;
  font-family: var(--font-display);
  font-size: .7rem;
  color: var(--ember);
  opacity: .8;
}
.promises h3 {
  font-size: .95rem;
  margin-bottom: .45rem;
  color: var(--text);
}
.promises p {
  font-size: .95rem;
  color: var(--text-dim);
}

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 20px, 0);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
.no-js [data-reveal] { opacity: 1; transform: none; }

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer {
  position: relative;
  border-top: 1px solid rgba(38, 32, 54, .6);
  padding-block: 1.75rem;
  font-size: .82rem;
  color: var(--text-faint);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-meta { opacity: .7; }

/* =========================================================================
   404
   ========================================================================= */
.lost {
  min-height: 100svh;
  display: flex;
  align-items: center;
}
.code {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 16vw, 6rem);
  color: var(--ember);
  line-height: 1;
  margin-bottom: 1.25rem;
  animation: glow 6s ease-in-out infinite alternate;
}
.home {
  display: inline-block;
  margin-top: 1.75rem;
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .04em;
  text-decoration: none;
  padding: 1rem 1.5rem;
  background: var(--ember);
  color: var(--ink);
  border: 2px solid var(--ember);
  transition: transform .16s var(--ease), background-color .2s var(--ease),
              box-shadow .25s var(--ease);
}
.home:hover {
  transform: translateY(-2px);
  background: var(--ember-lit);
  box-shadow: 0 10px 34px -10px rgba(255, 180, 84, .8);
}

/* =========================================================================
   Reduced motion — everything above degrades to a still, legible page.
   ========================================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  /* Kill the parallax inputs outright rather than relying on transitions. */
  :root { --px: 0; --py: 0; --scroll: 0; }

  .sky-grain { display: none; }
  .sky-embers { display: none; }

  [data-enter],
  [data-reveal] { opacity: 1 !important; transform: none !important; }

  .hero-inner { opacity: 1; transform: none; }
  .scroll-cue { opacity: 1; }
}