/* PlayHub — single stylesheet, no external fonts, no framework.
   Dark surface by design: these are games, and a bright white board behind a
   falling-block game looks wrong. Text is kept at AAA contrast on the base. */

:root {
  --bg: #0b0d17;
  --bg-2: #12141f;
  --panel: #171a28;
  --panel-2: #1e2233;
  --line: #262b3f;
  --line-soft: #1c2033;
  --ink: #eceef7;
  --ink-2: #b9bed3;
  --ink-3: #8b91a8;
  --accent: #7c5cff;
  --good: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --radius: 14px;
  --wrap: 1080px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

img, canvas, svg { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip {
  position: absolute;
  left: -9999px;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 99;
}
.skip:focus { left: 0; top: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

/* ------------------------------------------------------------------ nav */

.site-head {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(11, 13, 23, 0.92);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: 1.0625rem;
}
.brand:hover { text-decoration: none; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, #7c5cff, #3b82f6);
  color: #fff;
  font-size: 11px;
  padding-left: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  color: var(--ink-2);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 7px 11px;
  border-radius: 8px;
}
.site-nav a:hover { color: var(--ink); background: var(--panel-2); text-decoration: none; }
.site-nav a.on { color: var(--ink); background: var(--panel-2); }

@media (max-width: 560px) {
  .brand-name { display: none; }
  .site-nav a { padding: 7px 9px; font-size: 0.875rem; }
}

/* ---------------------------------------------------------------- hero */

.hero {
  padding: 64px 0 44px;
  background:
    radial-gradient(760px 320px at 18% -10%, rgba(124, 92, 255, 0.20), transparent 62%),
    radial-gradient(620px 280px at 82% 0%, rgba(34, 197, 94, 0.10), transparent 60%);
  border-bottom: 1px solid var(--line-soft);
}

.kicker {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(1.85rem, 5.2vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.028em;
  font-weight: 800;
  max-width: 20ch;
}

.lede {
  margin: 0;
  color: var(--ink-2);
  font-size: 1.0625rem;
  max-width: 62ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 650;
  font-size: 0.9375rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.12s ease;
}
.btn:hover { filter: brightness(1.1); text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn--ghost:hover { background: var(--panel-2); }

.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

/* --------------------------------------------------------------- blocks */

.block { padding: 48px 20px; }
.block--first { padding-top: 44px; }
.block--tight { padding-top: 8px; padding-bottom: 8px; }

.block-title {
  margin: 0 0 22px;
  font-size: 1.375rem;
  letter-spacing: -0.015em;
}

.page-title {
  margin: 0 0 14px;
  font-size: clamp(1.65rem, 4.4vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.026em;
}

.crumbs {
  color: var(--ink-3);
  font-size: 0.8125rem;
  margin-bottom: 14px;
}
.crumbs a { color: var(--ink-3); }
.crumbs span { margin: 0 4px; }

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.facts li {
  font-size: 0.8125rem;
  color: var(--ink-2);
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 5px 13px;
}
.facts strong { color: var(--ink-3); font-weight: 600; margin-right: 5px; }

/* ----------------------------------------------------------- game grid */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
  gap: 14px;
}

.gcard {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  grid-template-areas: 'emoji body' 'meta meta';
  align-items: center;
  gap: 4px 14px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  color: var(--ink);
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.gcard::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent, #7c5cff) 0%, transparent 55%);
  opacity: 0.07;
  pointer-events: none;
}
.gcard:hover {
  text-decoration: none;
  border-color: var(--accent, #7c5cff);
  transform: translateY(-2px);
  background: var(--panel-2);
}

.gcard-emoji {
  grid-area: emoji;
  font-size: 1.75rem;
  line-height: 1;
  filter: saturate(1.1);
}

.gcard-body { grid-area: body; min-width: 0; }

.gcard-name {
  display: block;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
}

.gcard-tag {
  display: block;
  color: var(--ink-3);
  font-size: 0.875rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gcard-meta {
  grid-area: meta;
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-weight: 600;
}

/* ------------------------------------------------------------ prose */

.prose { max-width: 68ch; }
.prose h2 {
  margin: 34px 0 10px;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
}
.prose h2:first-child { margin-top: 0; }
.prose p { margin: 0 0 15px; color: var(--ink-2); }
.prose strong { color: var(--ink); }
.muted { color: var(--ink-3); font-size: 0.875rem; }

.tips {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: tip;
}
.tips li {
  position: relative;
  padding: 0 0 0 34px;
  margin-bottom: 14px;
  color: var(--ink-2);
  counter-increment: tip;
}
.tips li::before {
  content: counter(tip);
  position: absolute;
  left: 0;
  top: 1px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.cards3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.mini {
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.mini h3 { margin: 0 0 7px; font-size: 1rem; }
.mini p { margin: 0; color: var(--ink-2); font-size: 0.9375rem; }

/* ------------------------------------------------------- two column */

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 40px;
  align-items: start;
}

.side {
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: sticky;
  top: 76px;
}

.panel {
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.panel h3 {
  margin: 0 0 12px;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-3);
  font-weight: 700;
}

.controls { margin: 0; }
.controls dt {
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--ink);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 8px;
  display: inline-block;
  margin-top: 10px;
}
.controls dt:first-child { margin-top: 0; }
.controls dd {
  margin: 4px 0 0;
  color: var(--ink-3);
  font-size: 0.8125rem;
}

.side-list { margin: 0; padding: 0; list-style: none; }
.side-list li + li { margin-top: 9px; }
.side-list a {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-2);
  font-size: 0.9375rem;
}
.side-list a:hover { color: var(--ink); text-decoration: none; }
.dot { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto; }

@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; gap: 28px; }
  .side { position: static; }
  .side .panel { display: inline-block; width: 100%; }
}

/* ---------------------------------------------------------------- faq */

.faq details {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 0 16px;
  margin-bottom: 8px;
}
.faq summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 600;
  font-size: 0.9688rem;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  color: var(--ink-3);
  font-size: 1.125rem;
  font-weight: 400;
  flex: 0 0 auto;
}
.faq details[open] summary::after { content: '\2212'; }
.faq details p {
  margin: 0 0 14px;
  color: var(--ink-2);
  font-size: 0.9375rem;
}

/* ---------------------------------------------------------- play shell */

.play {
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  max-width: 820px;
  margin: 0 auto;
  box-shadow: 0 24px 60px -32px rgba(0, 0, 0, 0.9);
}

.play-loading {
  margin: 0;
  padding: 60px 0;
  text-align: center;
  color: var(--ink-3);
  font-size: 0.9375rem;
}

@media (max-width: 560px) {
  .play { padding: 12px; border-radius: 14px; }
}

.notice {
  color: var(--warn);
  font-size: 0.875rem;
}

/* shared game chrome — each game builds on these */

.g-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-bottom: 14px;
}

.g-stats {
  display: flex;
  gap: 20px;
  margin-right: auto;
}

.g-stat { display: flex; flex-direction: column; }
.g-stat span {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-3);
  font-weight: 700;
}
.g-stat strong {
  font-family: var(--mono);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.g-actions { display: flex; gap: 8px; }

.g-btn {
  min-height: 38px;
  padding: 0 15px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--ink);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}
.g-btn:hover { border-color: var(--accent); }
.g-btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.g-stage {
  position: relative;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: #0d0f1a;
  border: 1px solid var(--line-soft);
  overflow: hidden;
  touch-action: manipulation;
}

.g-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 22px;
  background: rgba(9, 11, 20, 0.86);
  backdrop-filter: blur(3px);
  z-index: 5;
}
.g-overlay[hidden] { display: none; }

.g-overlay-inner { max-width: 300px; }
.g-overlay h3 {
  margin: 0 0 6px;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
}
.g-overlay p {
  margin: 0 0 16px;
  color: var(--ink-2);
  font-size: 0.9375rem;
}

.g-hint {
  margin: 12px 0 0;
  color: var(--ink-3);
  font-size: 0.8125rem;
  text-align: center;
}

/* ---------------------------------------------------------- game: chrome */

.g-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 12px;
}

.g-chip {
  min-height: 34px;
  padding: 0 13px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-3);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}
.g-chip:hover { color: var(--ink); border-color: var(--ink-3); }
.g-chip.on {
  background: var(--panel-2);
  border-color: var(--accent);
  color: var(--ink);
}

/* ------------------------------------------------------- game: memory */

.mboard {
  display: grid;
  grid-template-columns: repeat(var(--cols), 1fr);
  gap: 8px;
  padding: 8px;
  width: 100%;
  max-width: 460px;
}

@media (max-width: 380px) {
  .mboard { gap: 5px; padding: 5px; }
}

.mcard {
  position: relative;
  aspect-ratio: 1;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, opacity 0.2s ease;
}
.mcard:hover:not(.up) { border-color: var(--accent); background: #252a3d; }
.mcard:active:not(.done) { transform: scale(0.97); }

.mcard-face,
.mcard-sym {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 1em;
  line-height: 1;
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.mcard-face {
  color: var(--ink-3);
  font-weight: 700;
  opacity: 0.5;
}

.mcard-sym {
  opacity: 0;
  transform: scale(0.65);
}

.mcard.up {
  background: #f4f5fb;
  border-color: #fff;
}
.mcard.up .mcard-sym { opacity: 1; transform: scale(1); }
.mcard.up .mcard-face { opacity: 0; }

.mcard.done {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.55);
  opacity: 0.55;
  cursor: default;
}
.mcard.done .mcard-sym { opacity: 1; transform: scale(1); }

/* -------------------------------------------------------- game: canvas */

.g-canvas {
  display: block;
  touch-action: none;
  border-radius: 8px;
}

/* ------------------------------------------------------ game: 2048 grid */

.t-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 10px;
  width: 100%;
  max-width: 440px;
  background: #191d2b;
  border-radius: 12px;
}

@media (max-width: 400px) {
  .t-board { gap: 7px; padding: 7px; }
}

.t-cell {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
  transition: background 0.1s ease, color 0.1s ease;
}

.t-cell[data-v="0"] { color: transparent; }
.t-cell[data-v="2"] { background: #2b3148; color: #dfe3f4; }
.t-cell[data-v="4"] { background: #363d5a; color: #eef0fa; }
.t-cell[data-v="8"] { background: #4b5183; color: #fff; }
.t-cell[data-v="16"] { background: #5c5bb0; color: #fff; }
.t-cell[data-v="32"] { background: #6a54cf; color: #fff; }
.t-cell[data-v="64"] { background: #7c5cff; color: #fff; }
.t-cell[data-v="128"] { background: #3b82f6; color: #fff; }
.t-cell[data-v="256"] { background: #0ea5e9; color: #fff; }
.t-cell[data-v="512"] { background: #14b8a6; color: #fff; }
.t-cell[data-v="1024"] { background: #22c55e; color: #06210f; }
.t-cell[data-v="2048"] { background: #facc15; color: #2a1d00; }
.t-cell[data-v="4096"] { background: #f97316; color: #2a1000; }
.t-cell[data-v="8192"] { background: #ef4444; color: #fff; }

.t-cell[data-v="128"],
.t-cell[data-v="256"],
.t-cell[data-v="512"],
.t-cell[data-v="1024"],
.t-cell[data-v="2048"],
.t-cell[data-v="4096"],
.t-cell[data-v="8192"] {
  font-size: 1.15rem;
}

.t-cell.pop {
  animation: tpop 0.14s ease;
}

@keyframes tpop {
  from { transform: scale(0.88); }
  to { transform: scale(1); }
}

/* --------------------------------------------------- game: minesweeper */

.ms-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
}

.ms-board {
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--cell));
  gap: var(--gap);
  padding: var(--gap);
  width: max-content;
  margin: 0 auto;
  background: #191d2b;
  border-radius: 10px;
}

.ms-cell {
  width: var(--cell);
  height: var(--cell);
  border-radius: 4px;
  background: #2b3148;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: var(--fs);
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.ms-cell:hover:not(.is-open) { background: #363d5a; }
.ms-cell.is-open { background: #141824; cursor: default; }
.ms-cell.is-flag { background: #3a2b45; color: #f472b6; }
.ms-cell.is-mine { background: #3d1a1a; color: #ef4444; }
.ms-cell.is-hit { background: #ef4444; color: #fff; }

.ms-cell.n1 { color: #60a5fa; }
.ms-cell.n2 { color: #4ade80; }
.ms-cell.n3 { color: #f87171; }
.ms-cell.n4 { color: #c084fc; }
.ms-cell.n5 { color: #fb923c; }
.ms-cell.n6 { color: #22d3ee; }
.ms-cell.n7 { color: #e5e7eb; }
.ms-cell.n8 { color: #9ca3af; }

/* ---------------------------------------------------------------- foot */

.site-foot {
  margin-top: 40px;
  border-top: 1px solid var(--line-soft);
  padding: 34px 0 48px;
  background: var(--bg-2);
}

.foot-inner { display: flex; flex-direction: column; gap: 12px; }

.foot-brand { margin: 0; color: var(--ink-2); font-size: 0.9375rem; }

.foot-nav { display: flex; flex-wrap: wrap; gap: 18px; }
.foot-nav a { color: var(--ink-3); font-size: 0.875rem; }
.foot-nav a:hover { color: var(--ink); }

.foot-legal { margin: 0; color: var(--ink-3); font-size: 0.8125rem; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}