/* GameRange design system.
   One light look, deliberately: no prefers-color-scheme variant, and
   color-scheme: light so browser chrome follows. The game's own interface is
   dark neon, so the page stays white and lets the screenshots be the colour —
   helped along by the game's own balls, scattered through the hero and the
   closing band. */

:root {
  --paper: #ffffff;
  --tint: #fafafb;
  --ink: #16181c;
  --muted: #6b7280;
  --line: #e9e9ee;
  --wash: rgba(22, 24, 28, 0.04);
  --accent: #1f42cc;
  /* the pink of "Game", sampled from the wordmark. 3.77:1 on white, so it is
     for display type only; --brand-deep is the same hue taken to 4.55:1 and is
     what carries buttons and any small text. */
  --brand: #f8277d;
  --brand-deep: #df2370;
  --brand-dark: #c31a5f;
  /* the aubergine the wordmark was actually drawn on, sampled from the
     original artwork — the pairing the logo was designed as */
  --masthead: #3a0a3e;
  /* the peach of "Range", sampled from the wordmark, so the bar is one palette */
  --masthead-ink: #fbd5bc;

  color-scheme: light;

  --display: "Bricolage Grotesque", "Trebuchet MS", sans-serif;
  --body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --page: 1230px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 14px;
  /* Shadows here stay short and dense rather than long and faint: a wide blur
     spreads the same ink over so much ground that it stops reading as a
     shadow at all. */
  --lift:
    0 0 0 1px rgba(22, 24, 28, 0.09),
    0 1px 3px rgba(22, 24, 28, 0.24),
    0 4px 10px rgba(22, 24, 28, 0.34);
}

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

html {
  /* 17px base rather than the browser's 16. A percentage, not a pixel value,
     so a visitor who has raised their own default still gets it scaled up from
     there. Spacing is in px and does not follow; the headings are clamped
     against vw and barely move, so this lands almost entirely on the small
     text, which is where it was wanted. */
  font-size: 106.25%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--body);
  font-synthesis-weight: none;
  /* the footer carries a tint now, so on the short inner pages it has to sit
     at the bottom of the viewport rather than halfway up it */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1 0 auto; }

/* height:auto matters as much as max-width here: every img carries width and
   height attributes to reserve its space, and without it a scaled-down image
   keeps the attribute's height and stretches. */
img { max-width: 100%; height: auto; display: block; }

a { color: inherit; }

svg { display: block; }

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

.wrap {
  max-width: var(--page);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

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

.skip { position: absolute; left: -9999px; }

.skip:focus {
  left: var(--gutter);
  top: 8px;
  z-index: 10;
  background: var(--paper);
  padding: 8px 14px;
  border: 1px solid var(--ink);
}

/* ---------- masthead ---------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 8;
  background: var(--masthead);  /* fallback for browsers without color-mix */
  background: color-mix(in srgb, var(--masthead) 92%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.masthead-inner {
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 70px;
  display: flex;
  align-items: center;
  gap: 28px;
}

/* The wordmark keeps its drawn colours; the dark bar is the ground it needs. */
.wordmark {
  margin-right: auto;
  flex-shrink: 0;        /* flex would squeeze the wordmark out of proportion */
  display: flex;
  align-items: center;
  line-height: 0;
}

.wordmark img {
  height: 36px;
  width: auto;
  max-width: none;       /* overrides the global img rule, which also squeezes */
}

.masthead-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.97rem;
}

.masthead-nav a {
  text-decoration: none;
  color: var(--masthead-ink);
  padding: 4px 0;
  white-space: nowrap;
}

.masthead-nav a:hover {
  color: #fff;
  box-shadow: inset 0 -1px 0 #fff;
}

/* the language switch is a control, not another nav destination */
.masthead-nav .lang {
  border: 1px solid color-mix(in srgb, var(--masthead-ink) 40%, transparent);
  border-radius: 7px;
  padding: 5px 10px;
  margin-left: 4px;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
}

.masthead-nav .lang:hover {
  border-color: var(--masthead-ink);
  background: color-mix(in srgb, var(--masthead-ink) 12%, transparent);
  box-shadow: none;
}

/* ---------- shared type ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
}

.display {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 0.97;
  letter-spacing: -0.035em;
  margin: 0;
}

.section-title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}

.lede {
  max-width: 46ch;
  font-size: 1.06rem;
  color: var(--muted);
  margin: 20px 0 0;
}

.meta {
  font-family: var(--mono);
  font-size: 0.83rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.prose { max-width: 62ch; color: var(--muted); }
.prose p { margin: 0 0 1em; }
.prose p:last-child { margin-bottom: 0; }
.prose a { text-underline-offset: 3px; }

.lead { font-size: clamp(1.05rem, 1.6vw, 1.22rem); max-width: 64ch; }

/* Sections sit about 40px apart, which is the rhythm of the reference layout:
   these are bands of content, not chapters, and wider gaps pulled the page to
   nearly twice the height it should be. */
.block { padding-block: clamp(16px, 1.6vw, 20px); }

/* ---------- the download button ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 999px;
  background: var(--brand-deep);
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.02rem;
  box-shadow: 0 6px 18px rgba(223, 35, 112, 0.32);
}

.button:hover { background: var(--brand-dark); }
.button svg { width: 19px; height: 19px; fill: currentColor; }

/* ---------- balls ---------- */

/* The game's own renders, scattered behind the hero and the closing band.
   Decoration only: the layer is aria-hidden and never intercepts a click. */
.decor {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.decor img {
  position: absolute;
  width: var(--size);
  height: auto;
  max-width: none;
}

/* the far ones sit out of focus, which is what puts the near ones in front */
.decor .far { filter: blur(7px); opacity: 0.75; }

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

.hero {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(70% 80% at 12% 4%, #ffffff 0%, rgba(255, 255, 255, 0) 62%),
    linear-gradient(112deg, #f7f2fb 0%, #fceef6 46%, #f2edfd 100%);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--page);
  margin: 0 auto;
  padding: clamp(26px, 3.2vw, 40px) var(--gutter) clamp(20px, 2.5vw, 32px);
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.hero-head {
  display: flex;
  align-items: center;
  gap: 18px;
}

.hero-icon {
  width: clamp(64px, 7vw, 90px);
  height: auto;
  border-radius: 22%;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(22, 24, 28, 0.18);
}

.hero-title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.3vw, 3.45rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  margin: 0;
}

/* large display type, so the brand pink clears the 3:1 it has to clear */
.hero-title span {
  display: block;
  color: var(--brand);
}

.hero-tagline {
  margin: 24px 0 0;
  max-width: 40ch;
  font-size: 1.06rem;
  color: var(--muted);
}

/* four facts in two fixed columns: auto-fit would leave an orphan cell that
   shows the lattice background through */
.facts {
  margin: 24px 0 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.facts div {
  background: var(--paper);
  padding: 11px 15px 12px;
}

.facts dt {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.facts dd {
  margin: 4px 0 0;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.hero-action { margin: 20px 0 0; text-align: center; }
.hero-action .button { width: min(100%, 330px); }

.hero-status {
  margin: 10px 0 0;
  text-align: center;
  font-size: 0.93rem;
  color: var(--muted);
}

.hero-frame {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  isolation: isolate;   /* Safari otherwise paints video past the radius */
  /* Darker ink than the page's --ink, and a touch of the band's own plum in
     it: on this lavender ground a neutral grey shadow greys out before it
     reads as depth. */
  box-shadow:
    0 0 0 1px rgba(12, 8, 22, 0.18),
    0 2px 5px rgba(12, 8, 22, 0.44),
    0 8px 18px rgba(12, 8, 22, 0.64);
}

.hero-frame img,
.hero-frame video { width: 100%; height: auto; display: block; }

/* ---------- about, with the three highlights ---------- */

.about {
  display: grid;
  /* the three headings need the width: at the larger base size "Endlessly
     challenging" breaks over two lines in anything narrower */
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(24px, 3.6vw, 48px);
  align-items: start;   /* the icons line up with the heading, not the middle */
}

.highlights {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(12px, 1.6vw, 20px);
  text-align: center;
}

.highlights svg {
  width: 28px;
  height: 28px;
  margin: 4px auto 12px;
  color: var(--accent);
}

.highlights h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.04rem;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}

.highlights p { margin: 0; font-size: 1rem; color: var(--muted); }

/* ---------- how to play ---------- */

.rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 1.8vw, 22px);
}

.rule {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 17px 19px 19px;
}

.rule-head {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 9px;
}

.rule-number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ede9fe;
  color: #5b21b6;
  font-family: var(--mono);
  font-size: 0.87rem;
  display: grid;
  place-items: center;
}

.rule h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  margin: 0;
}

.rule p { margin: 0; font-size: 1rem; color: var(--muted); }

/* ---------- scoring ---------- */

.scoring {
  display: grid;
  grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}

.scoring-note { margin: 0; color: var(--muted); }

.scores {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(10px, 1.4vw, 18px);
}

.score {
  border-radius: 12px;
  padding: 13px 16px 15px;
  background: var(--tone);
}

.score-label {
  margin: 0;
  font-size: 0.96rem;
  color: var(--muted);
}

.score-value {
  margin: 4px 0 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

/* the pip: a square on its corner, one per card in that card's own colour */
.score-value i {
  width: 8px;
  height: 8px;
  background: var(--pip);
  transform: rotate(45deg);
  flex-shrink: 0;
}

/* ---------- screenshots ---------- */

.shots-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.shots-head .section-title { margin: 0; }

.shots-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}

.shots-tools .meta { white-space: nowrap; }

.shots-arrow {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  display: grid;
  place-items: center;
  cursor: pointer;
  flex-shrink: 0;
}

.shots-arrow:hover { border-color: var(--ink); }
.shots-arrow svg { width: 16px; height: 16px; }

.shots {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - 2 * clamp(14px, 1.8vw, 22px)) / 3);
  gap: clamp(14px, 1.8vw, 22px);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 4px;
}

.shots::-webkit-scrollbar { display: none; }

.shot {
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
  cursor: zoom-in;
  display: block;
  scroll-snap-align: start;
  box-shadow: var(--lift);
}

.shot img { width: 100%; height: auto; }
.shot:hover img { opacity: 0.9; }

.lightbox {
  border: 0;
  padding: 0;
  background: none;
  max-width: 92vw;
  max-height: 92vh;
}

.lightbox::backdrop { background: rgba(10, 11, 13, 0.86); }
.lightbox img { max-height: 88vh; width: auto; cursor: zoom-out; border-radius: var(--radius); }

/* ---------- where to play ---------- */

.platforms {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(10px, 1.4vw, 18px);
}

.platform {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 14px 14px;
  display: flex;
  gap: 11px;
}

.platform svg { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; }
.platform h3 {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.04rem;
  letter-spacing: -0.02em;
  margin: 0 0 3px;
}
.platform p { margin: 0; font-size: 0.92rem; color: var(--muted); line-height: 1.45; }

/* ---------- closing band ---------- */

.closing { padding-block: clamp(16px, 1.6vw, 20px) clamp(20px, 2vw, 26px); }

.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: 22px;
  background: linear-gradient(108deg, #2f0a44 0%, #4c1152 52%, #6a1a63 100%);
  color: #fff;
  padding: clamp(24px, 2.8vw, 34px) clamp(22px, 3.2vw, 44px);
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.cta h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.03em;
  margin: 0 0 8px;
}

.cta > .cta-inner p { margin: 0; color: rgba(255, 255, 255, 0.76); }

.cta-action { text-align: center; }
.cta-note { margin-top: 12px !important; font-size: 0.93rem; }

/* ---------- footer ---------- */

.colophon {
  border-top: 1px solid var(--line);
  background: var(--tint);
}

.colophon-inner {
  max-width: var(--page);
  margin: 0 auto;
  padding: 20px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.colophon-inner img { height: 30px; width: auto; max-width: none; }

.colophon-nav {
  display: flex;
  flex-wrap: wrap;      /* the Russian labels are long enough to need it */
  gap: 10px 22px;
  justify-content: center;
  font-size: 0.96rem;
}

.colophon-nav a { color: var(--muted); text-decoration: none; }
.colophon-nav a:hover { color: var(--ink); }

.colophon-legal { text-align: right; font-size: 0.89rem; color: var(--muted); }
.colophon-legal p { margin: 0; }
.colophon-legal p + p { margin-top: 3px; }

/* ---------- inner pages ---------- */

.page-head {
  padding-block: clamp(44px, 6vw, 84px) clamp(20px, 3vw, 34px);
}

.stamp { font-size: 0.88rem; }

.columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(56px, 7vw, 96px);
}

.stack {
  display: grid;
  gap: clamp(24px, 3vw, 36px);
  max-width: 68ch;
  padding-bottom: clamp(56px, 7vw, 96px);
}

/* ---------- narrower ---------- */

@media (max-width: 1000px) {
  .hero-inner,
  .about,
  .scoring { grid-template-columns: 1fr; }
  .rules { grid-template-columns: repeat(2, 1fr); }
  .platforms { grid-template-columns: repeat(3, 1fr); }
  .scores { grid-template-columns: repeat(5, 1fr); }
  .columns { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 700px) {
  .masthead-nav .jump { display: none; }
  /* the wordmark plus the Russian "Контакты" and the language chip are 3px too
     wide for a 375px screen at the larger base size */
  .masthead-inner { gap: 14px; }
  .wordmark img { height: 30px; }
  .rules,
  .highlights,
  .platforms { grid-template-columns: 1fr; }
  .scores { grid-template-columns: repeat(2, 1fr); }
  /* the heading and its tools stop fitting on one line well before this */
  .shots-head { flex-wrap: wrap; }
  .shots-tools { width: 100%; justify-content: space-between; }
  .shots { grid-auto-columns: 86%; }
  .colophon-inner { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .colophon-legal { text-align: center; }
  .decor { display: none; }   /* the balls need room they do not have here */
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}