/* perable.com — hand-written. Tokens, then layout. Everything referenced here lives in this folder. */

@font-face {
  font-family: "Overpass";
  src: url("../fonts/overpass-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #0B0E13;
  --bg-2: #141A25;
  --panel: #10141C;
  --field: rgba(238, 241, 245, .045);
  --ink: #EEF1F5;
  --ink-2: #98A2B3;
  --ink-3: #5C6677;
  --line: rgba(238, 241, 245, .10);
  --line-2: rgba(238, 241, 245, .16);
  --grid: rgba(238, 241, 245, .07);
  --acc: #3F8EFF;
  --acc-ink: #07111F;
  --acc-t: #5EA8FF; --acc-l: #0B6BE0; --acc-r: #0A4FA8;
  --cube-t: #EEF1F5; --cube-l: #B4BCC8; --cube-r: #7C8694;
  --cube-hi: #F3F5F8; --cube-lo: #66707E;
  --shadow: rgba(0, 0, 0, .45);
  --glow: rgba(63, 142, 255, .35);
  --err: #F0616A;
  --focus: #5EA8FF;
  --sans: "Overpass", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "Cascadia Code", Consolas, ui-monospace, "SF Mono", Menlo, "DejaVu Sans Mono", monospace;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F4F2EE;
  --bg-2: #E9E6DF;
  --panel: #FBFAF7;
  --field: rgba(21, 25, 31, .035);
  --ink: #15191F;
  --ink-2: #555D69;
  --ink-3: #8A919C;
  --line: rgba(21, 25, 31, .11);
  --line-2: rgba(21, 25, 31, .18);
  --grid: rgba(21, 25, 31, .075);
  --acc: #0B6BE0;
  --acc-ink: #FFFFFF;
  --cube-t: #3B4350; --cube-l: #232933; --cube-r: #12161C;
  --cube-hi: #4A5362; --cube-lo: #0E1217;
  --shadow: rgba(21, 25, 31, .18);
  --glow: rgba(11, 107, 224, .22);
  --err: #C0262E;
  --focus: #0B6BE0;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color .35s ease, color .35s ease;
}
/* film grain over everything: an SVG turbulence tile, no image file needed */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: 30;
  pointer-events: none;
  opacity: .07;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5 0 0 0 0 .5 0 0 0 0 .5 0 0 0 1 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
:root[data-theme="light"] body::before { opacity: .09; }

a { color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 3px; }

/* ---------- theme switch (top corner) ---------- */
.theme-toggle {
  position: fixed; top: clamp(12px, 3vw, 24px); right: clamp(12px, 3vw, 24px); z-index: 40;
  width: 44px; height: 44px; padding: 0;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  color: var(--ink);
  cursor: pointer;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: border-color .25s, background-color .35s, color .35s;
}
.theme-toggle:hover { border-color: var(--ink-3); }
.theme-toggle svg { transition: transform .5s cubic-bezier(.2, .8, .2, 1); }
:root[data-theme="light"] .theme-toggle svg { transform: rotate(180deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  height: 100svh;
  min-height: 540px;
  overflow: hidden;
  background: radial-gradient(120% 85% at 50% 36%, var(--bg-2) 0%, var(--bg) 68%);
  transition: background .35s ease;
}
#stage { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: manipulation; }
.hero.is-playing #stage { touch-action: none; }
.hero-ui { position: absolute; inset: 0; pointer-events: none; }

.brand {
  position: absolute; left: 50%; top: 59%;
  width: min(88vw, 600px);
  transform: translateX(-50%);
  text-align: center;
  transition: opacity .45s ease;
}
.hero.is-playing .brand { opacity: .08; }
.static-mark { width: min(38vw, 190px); margin: 0 auto 1.4rem; }
.static-mark svg { width: 100%; height: auto; display: block; }
html.js .static-mark { display: none; }
.mark .m-t { fill: var(--cube-t); } .mark .m-l { fill: var(--cube-l); } .mark .m-r { fill: var(--cube-r); }
.mark .a-t { fill: var(--acc-t); } .mark .a-l { fill: var(--acc-l); } .mark .a-r { fill: var(--acc-r); }
.wordmark { display: block; width: min(58vw, 420px); height: auto; margin: 0 auto; color: var(--ink); }

/* the game panel: hidden until the cube is clicked */
.gamebox {
  margin-top: 1.05rem;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  pointer-events: none;
  transition: opacity .45s ease, transform .45s ease, visibility 0s linear .45s;
}
.hero.is-armed .gamebox {
  opacity: 1; visibility: visible; transform: none;
  pointer-events: auto;
  transition: opacity .45s ease, transform .45s ease;
}
.hero.is-playing .gamebox { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .25s ease, visibility 0s linear .25s; }
html:not(.js) .gamebox { display: none; }
.line {
  margin: 0;
  font-size: clamp(1rem, .75rem + .9vw, 1.25rem);
  font-weight: 450;
  letter-spacing: .012em;
  color: var(--ink-2);
}
.gamerow { display: flex; justify-content: center; align-items: center; gap: .6rem; flex-wrap: wrap; margin-top: 1.1rem; }
.play, .chip {
  display: inline-flex; align-items: center; gap: .65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  color: var(--ink);
  cursor: pointer;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: border-color .25s, transform .2s;
}
.play { padding: .72rem 1.05rem .72rem 1.3rem; font: 500 .95rem/1 var(--sans); }
.play:hover, .chip:hover { border-color: var(--ink-3); transform: translateY(-1px); }
.play .key, .chip {
  font: 500 .66rem/1 var(--mono);
  letter-spacing: .1em; text-transform: uppercase;
}
.play .key { padding: .32rem .45rem; border: 1px solid var(--line); border-radius: 6px; color: var(--ink-2); }
.chip { padding: .78rem .95rem; gap: .5rem; color: var(--ink-2); }
.chip .chip-k { opacity: .65; }
.chip .chip-v { color: var(--ink); }

.hud {
  position: absolute; left: clamp(16px, 4vw, 40px); top: clamp(16px, 3.5vw, 30px);
  display: flex; gap: 1rem; align-items: baseline;
  font: 500 1rem/1.3 var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.hud .lvl { color: var(--acc); font-size: .78rem; letter-spacing: .1em; }
.hud .hi { color: var(--ink-3); font-size: .8rem; letter-spacing: .06em; }
.banner {
  position: absolute; left: 50%; top: 36%;
  margin: 0; padding: 0 1rem;
  transform: translate(-50%, -50%);
  font: 600 clamp(1rem, .6rem + 1.6vw, 1.6rem) var(--mono);
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
  opacity: 0;
}
.banner.big {
  top: 40%;
  font: 800 clamp(5rem, 3rem + 9vw, 11rem)/1 var(--sans);
  letter-spacing: -.04em; text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  text-shadow: 0 0 48px var(--glow), 0 2px 0 color-mix(in srgb, var(--acc) 35%, transparent);
}
.banner.show { animation: banner 1.5s ease both; }
.banner.big.show { animation: bannerBig 1.02s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes bannerBig {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(1.35); }
  18%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  72%  { opacity: 1; transform: translate(-50%, -50%) scale(.96); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(.85); }
}
@keyframes banner {
  0%   { opacity: 0; transform: translate(-50%, -40%) scale(.96); }
  18%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  78%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -62%); }
}
.hint {
  position: absolute; left: 50%; bottom: clamp(14px, 4vh, 36px);
  transform: translateX(-50%);
  margin: 0;
  font: 500 .7rem/1 var(--mono);
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}

/* ---------- footer ---------- */
.foot {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: 1.1rem clamp(16px, 4vw, 40px) 1.3rem;
  border-top: 1px solid var(--line);
  font: 500 .68rem/1.4 var(--mono);
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width: 600px) {
  .brand { top: 57%; }
  .wordmark { width: min(66vw, 300px); }
}
@media (max-height: 560px) and (orientation: landscape) {
  .brand { top: 54%; }
  .wordmark { width: 220px; }
  .line { display: none; }
}

/* ---------- motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .banner.show { opacity: 1; }
}