@charset "utf-8";
/* Vaultspin Games — core stylesheet
   Architecture: cascade layers → design tokens → semantic base → layout → components → utilities */

@layer tokens, base, layout, components, utilities;

/* ============================================================ tokens */
@layer tokens {
  :root {
    /* palette */
    --ink: #0b0d14;
    --ink-raised: #141824;
    --ink-inset: #1c2130;
    --rule: #2a3040;
    --amber: #f5b83d;
    --amber-deep: #d99a22;
    --teal: #4fd1c5;
    --paper: #e6e8ef;
    --paper-dim: #9aa0b4;
    --warn: #ff9d9d;
    --grow: #8fdf9f;

    /* type scale — fluid, 1.22 ratio */
    --step--1: clamp(0.83rem, 0.80rem + 0.15vw, 0.91rem);
    --step-0: clamp(1rem, 0.96rem + 0.20vw, 1.09rem);
    --step-1: clamp(1.22rem, 1.15rem + 0.35vw, 1.42rem);
    --step-2: clamp(1.49rem, 1.36rem + 0.65vw, 1.86rem);
    --step-3: clamp(1.82rem, 1.60rem + 1.05vw, 2.43rem);
    --step-4: clamp(2.22rem, 1.88rem + 1.65vw, 3.18rem);

    /* spacing — 4px base */
    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.5rem;
    --sp-6: 2rem;
    --sp-7: 3rem;
    --sp-8: 4.5rem;

    /* structure */
    --measure: 68ch;
    --shell: 71.25rem;
    --corner: 0.875rem;
    --corner-lg: 1.25rem;
    --edge: clamp(1rem, 4vw, 2rem);

    --ring: 0 0 0 2px var(--amber);
    --lift: 0 12px 32px -12px rgb(0 0 0 / 0.7);

    --type-ui: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    color-scheme: dark;
  }
}

/* ============================================================ base */
@layer base {
  *, *::before, *::after { box-sizing: border-box; }

  * { margin: 0; }

  html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-block-start: 5rem;
  }

  body {
    background: var(--ink);
    color: var(--paper);
    font-family: var(--type-ui);
    font-size: var(--step-0);
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    min-block-size: 100dvb;
    display: flex;
    flex-direction: column;
  }

  img, picture, svg, iframe { display: block; max-inline-size: 100%; }
  img { block-size: auto; }

  h1, h2, h3, h4 { line-height: 1.15; text-wrap: balance; font-weight: 750; }
  h1 { font-size: var(--step-4); }
  h2 { font-size: var(--step-3); }
  h3 { font-size: var(--step-1); }

  p, li { text-wrap: pretty; }

  a { color: var(--amber); text-underline-offset: 0.18em; }
  a:hover { color: var(--amber-deep); }

  :focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }

  button, input, textarea, select { font: inherit; color: inherit; }

  ::selection { background: var(--amber); color: var(--ink); }

  [hidden] { display: none !important; }
}

/* ============================================================ layout */
@layer layout {
  .shell {
    inline-size: min(var(--shell), 100% - (var(--edge) * 2));
    margin-inline: auto;
  }

  .band { padding-block: clamp(2.75rem, 7vw, 4.75rem); }
  .band[data-tone="raised"] {
    background: var(--ink-raised);
    border-block: 1px solid var(--rule);
  }
  .band[data-tone="edge"] { border-block-start: 1px solid var(--rule); }

  .stack > * + * { margin-block-start: var(--flow, var(--sp-4)); }

  .prose { max-inline-size: var(--measure); margin-inline: auto; }
  .prose > * + * { margin-block-start: var(--sp-4); }
  .prose h2 { margin-block-start: var(--sp-6); font-size: var(--step-2); }
  .prose h3 { margin-block-start: var(--sp-5); }
  .prose :is(p, li) { color: var(--paper-dim); }
  .prose strong { color: var(--paper); font-weight: 650; }
  .prose :is(ul, ol) { padding-inline-start: 1.35em; }
  .prose li + li { margin-block-start: var(--sp-2); }

  .lede { font-size: var(--step-1); color: var(--paper-dim); max-inline-size: 46rem; }

  .masthead {
    text-align: center;
    padding-block: clamp(2.5rem, 8vw, 5rem);
    position: relative;
    isolation: isolate;
  }
  .masthead .lede { margin-inline: auto; }

  .grid { display: grid; gap: var(--sp-5); }
  .grid[data-cols="3"] { grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr)); }
  .grid[data-cols="4"] { grid-template-columns: repeat(auto-fit, minmax(min(12rem, 45%), 1fr)); }
  .grid[data-cols="2"] { grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr)); }

  .cluster { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }
  .cluster[data-align="center"] { justify-content: center; }
}

/* ============================================================ components */
@layer components {

  /* --- skip + notice bar --- */
  .skip-link {
    position: absolute; inset-inline-start: -100vw; inset-block-start: 0; z-index: 999;
    background: var(--amber); color: var(--ink); font-weight: 700;
    padding: var(--sp-3) var(--sp-5); border-end-end-radius: var(--corner);
  }
  .skip-link:focus { inset-inline-start: 0; }

  .notice-bar {
    background: linear-gradient(90deg, var(--amber-deep), var(--amber));
    color: #14100a;
    font-size: var(--step--1);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-align: center;
    padding: var(--sp-2) var(--sp-4);
  }

  /* --- masthead / site header --- */
  .site-head {
    position: sticky; inset-block-start: 0; z-index: 90;
    background: color-mix(in srgb, var(--ink) 90%, transparent);
    border-block-end: 1px solid var(--rule);
  }
  @supports (backdrop-filter: blur(1px)) {
    .site-head { backdrop-filter: blur(10px) saturate(1.3); }
  }
  .site-head > .shell {
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--sp-4); padding-block: var(--sp-3);
  }

  .wordmark {
    display: inline-flex; align-items: center; gap: var(--sp-3);
    color: var(--amber); text-decoration: none;
    font-weight: 800; letter-spacing: 0.08em; font-size: var(--step-1);
  }
  .wordmark svg { inline-size: 2rem; block-size: 2rem; flex: none; }
  .wordmark b { font-weight: 800; }
  .wordmark i { font-style: normal; color: var(--paper-dim); font-weight: 500; letter-spacing: 0.14em; font-size: var(--step--1); }

  .menu-toggle {
    display: inline-grid; place-items: center; gap: 4px;
    background: transparent; border: 1px solid var(--rule);
    border-radius: 0.6rem; padding: 0.6rem 0.55rem; cursor: pointer;
  }
  .menu-toggle i { display: block; inline-size: 1.15rem; block-size: 2px; background: var(--amber); border-radius: 2px; }

  .site-nav { display: none; }
  .site-nav[data-open] {
    display: block;
    position: absolute; inset-inline: 0; inset-block-start: 100%;
    background: var(--ink-raised); border-block-end: 1px solid var(--rule);
    padding: var(--sp-3) var(--edge) var(--sp-5);
    box-shadow: var(--lift);
  }
  .site-nav ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: var(--sp-1); }
  .site-nav a {
    display: block; padding: var(--sp-3) var(--sp-4);
    border-radius: 0.6rem; text-decoration: none;
    color: var(--paper); font-weight: 600;
  }
  .site-nav a:is(:hover, [aria-current="page"]) { background: var(--ink-inset); color: var(--amber); }
  .site-nav li[data-accent] a {
    background: var(--amber); color: var(--ink); text-align: center; font-weight: 750;
  }
  .site-nav li[data-accent] a:hover { background: var(--amber-deep); color: var(--ink); }

  @media (width >= 60rem) {
    .menu-toggle { display: none; }
    .site-nav { display: block; }
    .site-nav ul { flex-direction: row; align-items: center; gap: var(--sp-1); }
    .site-nav a { padding: 0.45rem 0.8rem; font-size: var(--step--1); }
    .site-nav li[data-accent] a { border-radius: 999px; padding-inline: 1.1rem; }
  }

  /* --- buttons --- */
  .btn {
    --btn-bg: var(--amber);
    --btn-fg: #14100a;
    display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
    background: var(--btn-bg); color: var(--btn-fg);
    font-weight: 750; text-decoration: none; cursor: pointer;
    border: 2px solid transparent; border-radius: 999px;
    padding: 0.7rem 1.6rem;
    transition: translate 140ms ease, background-color 140ms ease;
  }
  .btn:hover { --btn-bg: var(--amber-deep); color: var(--btn-fg); translate: 0 -2px; }
  .btn[data-variant="outline"] {
    --btn-bg: transparent; --btn-fg: var(--amber);
    border-color: currentColor;
  }
  .btn[data-variant="outline"]:hover { --btn-bg: var(--amber); --btn-fg: var(--ink); }
  .btn[data-size="full"] { inline-size: 100%; }

  /* --- pill / eyebrow --- */
  .eyebrow {
    display: inline-block;
    font-size: var(--step--1); font-weight: 700;
    letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--amber);
    margin-block-end: var(--sp-3);
  }

  .backdrop { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
  .backdrop img { inline-size: 100%; block-size: 100%; object-fit: cover; opacity: 0.42; }
  .backdrop::after {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(70% 80% at 50% 0%, transparent, var(--ink) 78%);
  }

  /* --- panels --- */
  .panel {
    background: var(--ink-raised);
    border: 1px solid var(--rule);
    border-radius: var(--corner);
    padding: var(--sp-5);
  }
  .panel h3 { margin-block-end: var(--sp-2); }
  .panel p { color: var(--paper-dim); font-size: var(--step--1); }
  .panel svg { inline-size: 2.4rem; block-size: 2.4rem; margin-block-end: var(--sp-3); }

  /* --- game tiles --- */
  .tile {
    container-type: inline-size;
    display: flex; flex-direction: column;
    background: var(--ink-raised);
    border: 1px solid var(--rule);
    border-radius: var(--corner);
    overflow: clip;
    transition: border-color 140ms ease, translate 140ms ease;
  }
  .tile:hover { border-color: var(--amber); translate: 0 -4px; }
  .tile figure { aspect-ratio: 432 / 526; margin: 0; background: var(--ink-inset); }
  .tile figure img { inline-size: 100%; block-size: 100%; object-fit: cover; }
  .tile-body { padding: var(--sp-4); text-align: center; display: flex; flex-direction: column; gap: var(--sp-2); flex: 1; }
  .tile-body h3 { font-size: var(--step-0); }
  .tile-body p { font-size: var(--step--1); color: var(--paper-dim); flex: 1; }
  .tile-body a { margin-block-start: var(--sp-2); }

  /* --- game detail split --- */
  .split {
    display: grid; gap: var(--sp-5);
    align-items: start;
  }
  @media (width >= 48rem) {
    .split { grid-template-columns: minmax(0, 18rem) minmax(0, 1fr); gap: var(--sp-6); }
  }
  .split img { border-radius: var(--corner); inline-size: 100%; }
  .factlist { list-style: none; padding: 0; display: grid; gap: var(--sp-2); }
  .factlist li {
    display: grid; grid-template-columns: auto 1fr; gap: var(--sp-3);
    font-size: var(--step--1); color: var(--paper-dim);
    padding-block: var(--sp-2); border-block-end: 1px solid var(--rule);
  }
  .factlist dt, .factlist b { color: var(--paper); font-weight: 650; }

  /* --- game launcher (facade) --- */
  game-launcher { display: block; }
  .stage {
    position: relative;
    aspect-ratio: 16 / 10;
    background: var(--ink-inset);
    border: 1px solid var(--rule);
    border-radius: var(--corner);
    overflow: clip;
    display: grid;
    place-items: center;
    text-align: center;
  }
  .stage > img {
    position: absolute; inset: 0;
    inline-size: 100%; block-size: 100%;
    object-fit: cover; opacity: 0.28;
  }
  .stage-inner { position: relative; padding: var(--sp-5); display: grid; gap: var(--sp-3); justify-items: center; }
  .stage-inner p { font-size: var(--step--1); color: var(--paper-dim); max-inline-size: 30rem; }
  .stage iframe { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; border: 0; }
  .stage[data-live] { aspect-ratio: 16 / 9; }
  .stage[data-live] .stage-inner, .stage[data-live] > img { display: none; }

  .stage-exit {
    position: absolute; inset-block-start: var(--sp-2); inset-inline-end: var(--sp-2);
    z-index: 3;
    inline-size: 2.25rem; block-size: 2.25rem;
    display: none; place-items: center;
    background: var(--amber); color: var(--ink);
    border: 0; border-radius: 50%; cursor: pointer; font-weight: 800;
  }
  .stage[data-live] .stage-exit { display: grid; }

  @media (width < 40rem) {
    .stage[data-live] {
      position: fixed; inset: 0; z-index: 200;
      aspect-ratio: auto; border-radius: 0; border: 0;
    }
  }

  /* --- ranking --- */
  .ranking { list-style: none; padding: 0; counter-reset: pos; display: grid; gap: var(--sp-2); max-inline-size: 34rem; margin-inline: auto; }
  .ranking li {
    counter-increment: pos;
    display: grid; grid-template-columns: 2rem 1fr auto; align-items: center; gap: var(--sp-4);
    background: var(--ink-inset); border: 1px solid var(--rule);
    border-radius: 0.75rem; padding: var(--sp-3) var(--sp-4);
  }
  .ranking li::before { content: counter(pos); font-weight: 800; color: var(--amber); font-size: var(--step-1); }
  .ranking b { font-weight: 650; }
  .ranking span { color: var(--paper-dim); font-variant-numeric: tabular-nums; font-size: var(--step--1); }

  /* --- quotes --- */
  .quote {
    background: var(--ink-raised); border: 1px solid var(--rule);
    border-radius: var(--corner); padding: var(--sp-5);
    display: flex; flex-direction: column; gap: var(--sp-3);
  }
  .quote blockquote { font-style: italic; }
  .quote figcaption { font-size: var(--step--1); color: var(--paper-dim); margin-block-start: auto; }
  .quote figcaption b { display: block; color: var(--amber); font-style: normal; }

  /* --- numbered steps --- */
  .steps { list-style: none; padding: 0; counter-reset: st; display: grid; gap: var(--sp-5); }
  @media (width >= 48rem) { .steps { grid-template-columns: repeat(3, 1fr); } }
  .steps li {
    counter-increment: st; position: relative;
    background: var(--ink-raised); border: 1px solid var(--rule);
    border-radius: var(--corner); padding: var(--sp-6) var(--sp-5) var(--sp-5);
  }
  .steps li::before {
    content: counter(st);
    position: absolute; inset-block-start: -0.9rem; inset-inline-start: var(--sp-5);
    inline-size: 1.85rem; block-size: 1.85rem;
    display: grid; place-items: center;
    background: var(--amber); color: var(--ink);
    border-radius: 50%; font-weight: 800; font-size: var(--step--1);
  }
  .steps h3 { margin-block-end: var(--sp-2); font-size: var(--step-0); }
  .steps p { color: var(--paper-dim); font-size: var(--step--1); }

  /* --- disclosure / FAQ --- */
  .qa { max-inline-size: var(--measure); margin-inline: auto; display: grid; gap: var(--sp-3); }
  .qa details {
    background: var(--ink-raised); border: 1px solid var(--rule);
    border-radius: 0.75rem; overflow: clip;
  }
  .qa summary {
    cursor: pointer; list-style: none;
    padding: var(--sp-4) 3rem var(--sp-4) var(--sp-4);
    font-weight: 650; position: relative;
  }
  .qa summary::-webkit-details-marker { display: none; }
  .qa summary::after {
    content: ""; position: absolute;
    inset-inline-end: 1.15rem; inset-block-start: 50%;
    inline-size: 0.65rem; block-size: 0.65rem;
    border-inline-end: 2px solid var(--amber); border-block-end: 2px solid var(--amber);
    translate: 0 -60%; rotate: 45deg;
    transition: rotate 160ms ease;
  }
  .qa details[open] summary::after { rotate: 225deg; translate: 0 -20%; }
  .qa details > div { padding: 0 var(--sp-4) var(--sp-4); color: var(--paper-dim); }

  /* --- forms --- */
  .form { max-inline-size: 30rem; margin-inline: auto; display: grid; gap: var(--sp-4); }
  .form[data-width="wide"] { max-inline-size: 40rem; }
  .field { display: grid; gap: var(--sp-2); }
  .field > label { font-weight: 650; font-size: var(--step--1); }
  .field :is(input, textarea, select) {
    inline-size: 100%;
    background: var(--ink-inset); border: 1px solid var(--rule);
    border-radius: 0.6rem; padding: 0.7rem 0.9rem;
  }
  .field :is(input, textarea):focus-visible { border-color: var(--amber); }
  .field small { font-size: var(--step--1); color: var(--paper-dim); }
  .field[data-invalid] :is(input, textarea) { border-color: var(--warn); }
  .field .flag { display: none; color: var(--warn); font-size: var(--step--1); }
  .field[data-invalid] .flag { display: block; }

  .consent { display: grid; grid-template-columns: auto 1fr; gap: var(--sp-3); align-items: start; }
  .consent input { inline-size: 1.15rem; block-size: 1.15rem; margin-block-start: 0.2rem; accent-color: var(--amber); }
  .consent label { font-size: var(--step--1); color: var(--paper-dim); }
  .consent .flag { grid-column: 2; }

  .pair { display: grid; gap: var(--sp-4); }
  @media (width >= 34rem) { .pair { grid-template-columns: 1fr 1fr; } }

  .receipt {
    background: color-mix(in srgb, var(--grow) 12%, var(--ink-raised));
    border: 1px solid color-mix(in srgb, var(--grow) 40%, var(--rule));
    color: var(--grow);
    border-radius: var(--corner); padding: var(--sp-4) var(--sp-5);
  }
  .form-foot { font-size: var(--step--1); color: var(--paper-dim); text-align: center; }

  /* --- footer --- */
  .site-foot {
    margin-block-start: auto;
    background: var(--ink-raised);
    border-block-start: 1px solid var(--rule);
    padding-block: var(--sp-7) var(--sp-5);
  }
  .foot-nav ul {
    list-style: none; padding: 0;
    display: flex; flex-wrap: wrap; justify-content: center;
    gap: var(--sp-2) var(--sp-5);
  }
  .foot-nav a { color: var(--paper); text-decoration: none; font-size: var(--step--1); font-weight: 600; }
  .foot-nav a:hover { color: var(--amber); }

  .assurances {
    display: flex; flex-wrap: wrap; justify-content: center;
    gap: var(--sp-6); margin-block: var(--sp-6);
  }
  .assurances > * {
    display: grid; justify-items: center; gap: var(--sp-2);
    inline-size: 7rem; text-align: center;
    color: inherit; text-decoration: none;
  }
  .assurances svg { inline-size: 3rem; block-size: 3rem; }
  .assurances span {
    font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--paper-dim);
  }
  .assurances a:hover span { color: var(--amber); }

  .small-print { max-inline-size: 54rem; margin-inline: auto; text-align: center; }
  .small-print h2 {
    font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--amber); margin-block-end: var(--sp-3);
  }
  .small-print p { font-size: 0.82rem; color: var(--paper-dim); }
  .small-print p + p { margin-block-start: var(--sp-3); }
  .colophon { text-align: center; color: var(--paper-dim); font-size: 0.8rem; margin-block-start: var(--sp-5); }

  /* --- storage notice --- */
  .storage-note {
    position: fixed; inset-block-end: var(--sp-4); inset-inline: var(--sp-4);
    z-index: 120; max-inline-size: 28rem; margin-inline: auto;
    background: var(--ink-inset); border: 1px solid var(--rule);
    border-radius: var(--corner); padding: var(--sp-4) var(--sp-5);
    box-shadow: var(--lift);
    display: grid; gap: var(--sp-3);
  }
  .storage-note p { font-size: var(--step--1); color: var(--paper-dim); }

  /* --- breadcrumb --- */
  .trail { font-size: var(--step--1); color: var(--paper-dim); }
  .trail ol { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: var(--sp-2); }
  .trail li + li::before { content: "/"; margin-inline-end: var(--sp-2); color: var(--rule); }
  .trail a { text-decoration: none; }

  /* --- gone (404) --- */
  .gone { text-align: center; padding-block: clamp(3.5rem, 12vw, 7rem); }
  .gone b { display: block; font-size: clamp(3.5rem, 14vw, 6.5rem); font-weight: 800; color: var(--amber); line-height: 1; }
}

/* ============================================================ utilities */
@layer utilities {
  .center { text-align: center; }
  .center .lede { margin-inline: auto; }
  .flow-lg { --flow: var(--sp-5); }
  .mt-5 { margin-block-start: var(--sp-5); }
  .mt-6 { margin-block-start: var(--sp-6); }
  .visually-hidden {
    position: absolute !important; inline-size: 1px; block-size: 1px;
    padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap;
  }
  .no-scroll { overflow: hidden; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}