/* ==========================================================================
   The Cocktail Cabinet — dark arcade theme
   Amber = you play the classic role. Cyan = the computer plays it.
   ========================================================================== */

:root {
  --ink: #0e0b15;
  --surface: #171221;
  --raised: #211a2e;
  --line: rgba(255, 255, 255, 0.09);
  --text: #f1ebf6;
  --muted: #a095b3;

  --human: #ffb347;
  --human-soft: rgba(255, 179, 71, 0.14);
  --computer: #52d6ff;
  --computer-soft: rgba(82, 214, 255, 0.14);

  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-pill: 999px;

  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --shadow-raised:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 10px 20px -12px rgba(6, 3, 16, 0.9),
    0 28px 56px -32px rgba(110, 60, 200, 0.35);
  --shadow-floating:
    0 1px 0 rgba(255, 255, 255, 0.07) inset,
    0 18px 32px -16px rgba(6, 3, 16, 0.95),
    0 44px 80px -40px rgba(82, 214, 255, 0.22);
}

.tone-human { --tone: var(--human); --tone-soft: var(--human-soft); }
.tone-computer { --tone: var(--computer); --tone-soft: var(--computer-soft); }

/* ---------- Base ---------- */

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

html { color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Ambient glow (amber upper-left, cyan lower-right) plus film grain. */
body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: -1;
  background:
    radial-gradient(60rem 40rem at 8% -10%, rgba(255, 179, 71, 0.13), transparent 60%),
    radial-gradient(55rem 40rem at 100% 105%, rgba(82, 214, 255, 0.12), transparent 60%),
    radial-gradient(40rem 30rem at 55% 40%, rgba(120, 70, 200, 0.1), transparent 70%);
}

body::after {
  z-index: 50;
  opacity: 0.07;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, p, ul { margin: 0; }

ul { padding: 0; list-style: none; }

svg { display: block; }

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

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -4rem;
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--ink);
  font-weight: 600;
}

.skip-link:focus-visible { top: var(--space-4); }

.page {
  width: min(100% - 2rem, 72rem);
  margin-inline: auto;
  padding-block: var(--space-7) var(--space-8);
  outline: none;
}

.notice { color: var(--muted); }

/* ---------- Hero ---------- */

.hero { display: grid; gap: var(--space-5); margin-bottom: var(--space-7); }

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.75rem, 9vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero__title-accent {
  display: block;
  background: linear-gradient(95deg, var(--human) 10%, var(--computer) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lede {
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.125rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
}

.legend__item { display: inline-flex; align-items: center; gap: var(--space-2); }

.dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--tone);
  box-shadow: 0 0 12px var(--tone);
}

/* ---------- Game shelf ---------- */

.shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 16.5rem), 1fr));
  gap: var(--space-4);
}

.card {
  position: relative;
  display: grid;
  align-content: start;
  gap: var(--space-3);
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(170deg, var(--raised), var(--surface) 60%);
  box-shadow: var(--shadow-raised);
  animation: rise 0.6s var(--ease-spring) backwards;
  animation-delay: calc(var(--i) * 60ms);
  transition: transform 0.35s var(--ease-spring);
}

/* Amber-to-cyan border: the two sides of every game. */
.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  padding: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--human), var(--computer));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.card:hover, .card:focus-within { transform: translateY(-4px); }
.card:hover::before, .card:focus-within::before { opacity: 1; }
.card:active { transform: translateY(-1px) scale(0.985); }

.card__icon {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-sm);
  background: var(--ink);
  border: 1px solid var(--line);
  color: var(--text);
}

.card__icon svg { width: 2rem; height: 2rem; }

.card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

/* The title link covers the whole card; the side chips sit above it. */
.card__link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: var(--radius-md);
}

.card__link:focus-visible { outline: none; }
.card__link:focus-visible::after { outline: 2px solid var(--text); outline-offset: 3px; }

.card__tagline { color: var(--muted); font-size: 0.9375rem; line-height: 1.6; }

.card__modes { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-2); }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
}

/* ---------- Side chips ---------- */

.chip {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--tone-soft);
  border-radius: var(--radius-pill);
  background: var(--tone-soft);
  color: var(--tone);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1;
  transition: transform 0.25s var(--ease-spring);
}

.chip .dot { width: 0.4375rem; height: 0.4375rem; box-shadow: none; }

.chip:hover { transform: translateY(-2px); border-color: var(--tone); }
.chip:active { transform: translateY(0) scale(0.96); }

/* ---------- Navigation bar (side picker + play view) ---------- */

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3) var(--space-2) var(--space-2);
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  transition: transform 0.25s var(--ease-spring);
}

.back:hover { color: var(--text); transform: translateX(-3px); }
.back:active { transform: translateX(-1px) scale(0.97); }

.switcher { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.switcher .chip { z-index: auto; }

.switcher .chip[aria-current="page"] {
  background: var(--tone);
  border-color: var(--tone);
  color: var(--ink);
}

.switcher .chip[aria-current="page"] .dot { background: var(--ink); }

/* ---------- Side picker ---------- */

.picker { display: grid; gap: var(--space-6); }

.picker__head { display: flex; align-items: center; gap: var(--space-4); }

.picker__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.picker__tagline { color: var(--muted); }

.picker__prompt {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
}

.sides {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-4);
}

.side {
  position: relative;
  display: grid;
  gap: var(--space-2);
  padding: var(--space-5);
  border: 1px solid var(--tone-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(170deg, var(--tone-soft), var(--surface) 70%);
  box-shadow: var(--shadow-raised);
  transition: transform 0.35s var(--ease-spring);
}

.side:hover { transform: translateY(-4px); border-color: var(--tone); }
.side:active { transform: translateY(-1px) scale(0.985); }

.side__label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: -0.03em;
  color: var(--tone);
}

.side__blurb { color: var(--muted); font-size: 0.9375rem; line-height: 1.6; }

/* ---------- Stage (where a running game mounts) ---------- */

.stage {
  /* Width is capped so the 4:3 height stays within 72vh (96vh = 72vh * 4/3). A max-height
     instead would shrink the box but not the canvas, cropping the bottom of the playfield. */
  width: min(100%, 60rem, 96vh);
  aspect-ratio: 4 / 3;
  margin-inline: auto;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    radial-gradient(40rem 24rem at 50% 0%, rgba(120, 70, 200, 0.16), transparent 70%),
    var(--surface);
  box-shadow: var(--shadow-floating);
}

.stage { position: relative; }

.game-canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.scoreboard {
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  right: var(--space-4);
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
  pointer-events: none;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: var(--space-3);
  padding: var(--space-5);
  text-align: center;
  background: rgba(14, 11, 21, 0.78);
}

.overlay[hidden] { display: none; }

.overlay__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.overlay__detail { max-width: 26rem; color: var(--muted); }

.overlay__action {
  margin-top: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border: 0;
  border-radius: var(--radius-pill);
  background: var(--tone, var(--human));
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.25s var(--ease-spring);
}

.overlay__action:hover { transform: translateY(-2px); }
.overlay__action:active { transform: translateY(0) scale(0.96); }

.placeholder {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  max-width: 28rem;
  padding: var(--space-5);
  text-align: center;
}

.placeholder__icon { color: var(--tone); }
.placeholder__icon svg { width: 4.5rem; height: 4.5rem; }

.placeholder__status {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--tone-soft);
  color: var(--tone);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.placeholder__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.placeholder__blurb { color: var(--muted); }

/* ---------- Motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}