/* Chromatic Drift – website styles
   Colours, type and motion follow the app's title screen (design handoff 2b).
   Change a colour once here in :root and it changes everywhere. */

@font-face { font-family: "Big Shoulders Display"; font-weight: 900; font-display: swap;
  src: url("fonts/BigShouldersDisplay-Black.woff2") format("woff2"); }
@font-face { font-family: "Big Shoulders Display"; font-weight: 800; font-display: swap;
  src: url("fonts/BigShouldersDisplay-ExtraBold.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-weight: 500; font-display: swap;
  src: url("fonts/Archivo-Medium.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-weight: 800; font-display: swap;
  src: url("fonts/Archivo-ExtraBold.woff2") format("woff2"); }

:root {
  color-scheme: dark;
  --ink: #FBEEE4;
  --ink-2: rgba(251, 238, 228, .78);
  --ink-3: rgba(251, 238, 228, .6);
  --line: rgba(251, 238, 228, .14);
  --card: rgba(251, 238, 228, .045);
  --paper: #FBF7F2;
  --plum-hi: #3A1A2C;
  --plum: #1E0F1C;
  --plum-deep: #120810;
  /* game colours (the app's palette) */
  --red: #FF4D5E;
  --green: #3DDC84;
  --blue: #3D8BFF;
  --yellow: #FFD23F;
  /* the title's equation colours */
  --eq-red: #FF6B61;
  --eq-green: #5FD67C;
  --display: "Big Shoulders Display", "Arial Narrow", "Helvetica Neue", sans-serif;
  --text: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --side: clamp(16px, 4vw, 28px);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--plum);
  color: var(--ink);
  font: 500 17px/1.6 var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #fff; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; line-height: 1; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; border-radius: 4px; }
.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 var(--side); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 50; padding: 10px 16px; background: var(--paper); color: var(--plum); border-radius: 6px; font-weight: 800; }
.skip:focus { top: 12px; }

/* ---------- header ---------- */
.site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 5; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 18px; padding-bottom: 18px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; min-height: 44px; }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.brand span { font: 900 24px/1 var(--display); text-transform: uppercase; letter-spacing: .01em; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; text-decoration: none; font-weight: 800; font-size: 15px; color: var(--ink-2); border-radius: 6px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); background: var(--card); }
@media (max-width: 560px) {
  .brand span { display: none; }
  .nav a { padding: 0 9px; font-size: 14px; }
  .nav .nav-wide { display: none; }
}

/* ---------- atmosphere: base gradient + three drifting light blooms ---------- */
.atmos { position: relative; isolation: isolate; background: linear-gradient(160deg, var(--plum-hi) 0%, var(--plum) 50%, var(--plum-deep) 100%); overflow: hidden; }
.atmos > .bloom { position: absolute; z-index: -1; border-radius: 50%; filter: blur(20px); pointer-events: none; animation: bloom 16s ease-in-out infinite alternate; }
.bloom.b1 { width: 560px; height: 560px; left: 30%; top: -180px; background: radial-gradient(closest-side, rgba(255, 140, 60, .28), transparent 68%); }
.bloom.b2 { width: 520px; height: 520px; left: -200px; top: 38%; background: radial-gradient(closest-side, rgba(220, 60, 90, .25), transparent 68%); animation-duration: 21s; animation-delay: -3s; }
.bloom.b3 { width: 420px; height: 420px; right: -120px; bottom: -140px; background: radial-gradient(closest-side, rgba(255, 190, 90, .15), transparent 68%); animation-duration: 26s; animation-delay: -6s; }
@keyframes bloom {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -24px) scale(1.15); }
  100% { transform: translate(-20px, 20px) scale(.92); }
}

/* ---------- poster title ---------- */
.title { font: 900 clamp(64px, 11vw, 132px)/.84 var(--display); letter-spacing: -.01em; text-transform: uppercase; }
.title span { display: block; }
.drift {
  display: inline-block !important;
  padding-right: .12em;
  transform: skewX(-12deg);
  transform-origin: bottom left;
  background: linear-gradient(90deg, #FF6B61, #FFB35C, #E3D23C, #5FD67C, #4F9FE8, #9A7BFF, #FF6B61, #FFB35C, #E3D23C, #5FD67C, #4F9FE8, #9A7BFF, #FF6B61);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: drift-fill 7s linear infinite;
}
@keyframes drift-fill { from { background-position: 100% 0; } to { background-position: 0 0; } }
.eq { display: flex; align-items: center; gap: 14px; margin: 18px 0 0; font: 800 28px/1 var(--text); letter-spacing: .5px; }
.eq b { font-weight: 800; }
.eq .r { color: var(--eq-red); }
.eq .g { color: var(--eq-green); }
.eq span { display: inline-flex; gap: 4px; }
.eq i { flex: 1; height: 1px; background: rgba(251, 238, 228, .3); max-width: 360px; }
.tagline { margin: 12px 0 0; max-width: 17em; font-size: 17px; color: var(--ink-2); text-wrap: balance; }

/* ---------- hero ---------- */
.hero { padding-top: 80px; padding-bottom: clamp(48px, 8vw, 96px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 480px); gap: clamp(28px, 5vw, 64px); align-items: start; padding-top: clamp(16px, 4vw, 56px); }
.hero-copy { padding-top: clamp(0px, 3vw, 32px); }
.lead { margin: 28px 0 0; max-width: 31em; font-size: 19px; line-height: 1.55; color: var(--ink); }
.store-line { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin: 28px 0 0; }
.soon { display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 clamp(16px, 4vw, 22px); background: var(--paper); color: var(--plum); border-radius: 6px; font: 900 clamp(18px, 5vw, 22px)/1 var(--display); letter-spacing: .02em; text-transform: uppercase; text-decoration: none; }
.soon svg { width: 20px; height: 20px; flex: none; }
a.soon:hover { color: var(--plum); filter: brightness(.95); }
.store-meta { font-size: 15px; color: var(--ink-3); }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-grid .demo { max-width: 520px; width: 100%; }
}

/* ---------- the playable demo ---------- */
.demo { background: rgba(18, 8, 16, .72); border: 1px solid var(--line); border-radius: 14px; padding: 18px; box-shadow: 0 30px 80px rgba(0, 0, 0, .45); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.demo-head h2 { font: 900 30px/1 var(--display); text-transform: uppercase; letter-spacing: .01em; }
.demo-head p { margin: 8px 0 14px; font-size: 15px; line-height: 1.5; color: var(--ink-2); }
.board { position: relative; aspect-ratio: 1; border-radius: 10px; overflow: hidden; background: var(--plum-deep); }
.board canvas { display: block; width: 100%; height: 100%; }
.board-msg { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 20px; text-align: center; background: rgba(18, 8, 16, .66); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }
.board-msg[hidden] { display: none; }
.board-msg strong { font: 900 44px/.95 var(--display); text-transform: uppercase; }
.board-msg p { margin: 0; max-width: 22em; font-size: 16px; color: var(--ink); }
.share { display: flex; height: 6px; margin: 12px 0 4px; border-radius: 3px; overflow: hidden; background: var(--line); }
.share i { display: block; height: 100%; transition: flex-grow .3s linear; }
.share .c1 { background: var(--red); }
.share .c2 { background: var(--green); }
.share .c3 { background: var(--blue); }
.rules { margin-top: 10px; }
.rule { margin: 0; padding: 8px 0 0; border: 0; min-width: 0; }
.rule legend { display: flex; align-items: center; gap: 6px; padding: 0; font-size: 13px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); }
.seg { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 3px; margin-top: 6px; padding: 3px; background: rgba(251, 238, 228, .06); border-radius: 8px; }
.seg label { position: relative; display: flex; align-items: center; justify-content: center; gap: 5px; min-height: 44px; padding: 0 4px; border-radius: 6px; font-size: 14px; font-weight: 800; color: var(--ink-2); cursor: pointer; text-align: center; line-height: 1.1; user-select: none; -webkit-user-select: none; }
.seg label:hover { background: rgba(251, 238, 228, .07); color: var(--ink); }
.seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.seg label:has(input:checked) { background: var(--paper); color: var(--plum); }
.seg label:has(input:focus-visible) { outline: 3px solid var(--yellow); outline-offset: 1px; }
.dot { display: inline-block; width: 11px; height: 11px; border-radius: 50%; flex: none; box-shadow: 0 0 0 1.5px rgba(255, 255, 255, .25) inset; }
.dot.c1 { background: var(--red); }
.dot.c2 { background: var(--green); }
.dot.c3 { background: var(--blue); }
.demo-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.demo-status { margin: 0; font-size: 14px; color: var(--ink-3); }
.demo-buttons { display: flex; gap: 6px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 16px; border: 1px solid var(--line); border-radius: 6px; background: transparent; color: var(--ink); font: 800 14px/1 var(--text); text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--card); }
.btn-solid { background: var(--paper); color: var(--plum); border-color: var(--paper); }
.btn-solid:hover { background: #fff; color: var(--plum); }
.btn svg { width: 16px; height: 16px; }
.speed { display: inline-flex; padding: 3px; gap: 2px; border: 1px solid var(--line); border-radius: 6px; }
.speed button { min-width: 40px; min-height: 36px; border: 0; border-radius: 4px; background: transparent; color: var(--ink-2); font: 800 13px/1 var(--text); cursor: pointer; }
.speed button[aria-pressed="true"] { background: rgba(251, 238, 228, .14); color: var(--ink); }
@media (max-width: 420px) {
  .hero-grid .demo { width: auto; padding: 14px; margin: 0 calc(10px - var(--side)); border-radius: 12px; }
  .seg label { font-size: 13px; gap: 3px; padding: 0 2px; }
  .seg .dot { width: 9px; height: 9px; }
}

/* ---------- sections ---------- */
.section { padding: clamp(56px, 9vw, 112px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.kicker { margin: 0 0 12px; font-size: 13px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }
.h2 { font: 900 clamp(44px, 7vw, 76px)/.9 var(--display); text-transform: uppercase; letter-spacing: -.005em; }
.intro { max-width: 36em; margin: 18px 0 0; font-size: 19px; color: var(--ink-2); }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 44px 0 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { position: relative; padding: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.steps h3 { margin: 18px 0 10px; font: 900 30px/1 var(--display); text-transform: uppercase; }
.steps p { margin: 0; font-size: 16px; color: var(--ink-2); }
.pic { display: flex; align-items: center; gap: 10px; height: 56px; }
.ball { width: 34px; height: 34px; border-radius: 50%; flex: none; background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, .55), transparent 42%), var(--c, var(--red)); box-shadow: 0 0 18px color-mix(in srgb, var(--c, var(--red)) 55%, transparent); }
.ball.sm { width: 18px; height: 18px; }
.ball.xs { width: 10px; height: 10px; }
.pic .op { font: 800 22px/1 var(--text); color: var(--ink-3); }
.pic .rule-chip { padding: 6px 10px; border-radius: 6px; background: var(--paper); color: var(--plum); font-size: 13px; font-weight: 800; }
@media (max-width: 860px) { .steps { grid-template-columns: minmax(0, 1fr); } }

/* outcomes list */
.outcomes { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 22px 0 0; padding: 0; list-style: none; }
.outcomes li { padding: 16px 18px; border-left: 3px solid var(--c, var(--line)); background: var(--card); border-radius: 0 10px 10px 0; font-size: 15px; color: var(--ink-2); }
.outcomes strong { display: block; margin-bottom: 4px; font: 900 22px/1 var(--display); text-transform: uppercase; color: var(--ink); letter-spacing: .01em; }

/* phone screenshots */
.shots { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin: 44px 0 0; padding: 0; list-style: none; }
.shots figure { margin: 0; }
.shots img { width: 100%; border-radius: 22px; border: 1px solid var(--line); box-shadow: 0 24px 60px rgba(0, 0, 0, .45); background: var(--plum-deep); }
.shots figcaption { margin-top: 12px; font-size: 14px; color: var(--ink-3); }
@media (max-width: 860px) {
  .shots { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 14px; padding-bottom: 12px; margin-right: calc(-1 * var(--side)); padding-right: var(--side); }
  .shots li { flex: 0 0 62%; scroll-snap-align: start; }
}

/* story strip */
.story { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin: 44px 0 0; padding: 0; list-style: none; }
.story figure { margin: 0; }
.story img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 10px; background: var(--plum-deep); }
.story figcaption { margin-top: 12px; }
.story .ch { display: block; font: 900 22px/1 var(--display); text-transform: uppercase; }
.story q { display: block; margin-top: 6px; font-size: 14px; line-height: 1.5; color: var(--ink-3); quotes: "“" "”"; }
.story-wide { margin: 40px 0 0; border-radius: 14px; overflow: hidden; }
@media (max-width: 960px) {
  .story { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; margin-right: calc(-1 * var(--side)); padding-right: var(--side); }
  .story li { flex: 0 0 min(64%, 260px); scroll-snap-align: start; }
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 28px 0 0; padding: 0; list-style: none; }
.chips li { padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 800; color: var(--ink-2); }

/* ball styles */
.styles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 44px 0 0; padding: 0; list-style: none; }
.styles figure { margin: 0; }
.styles img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); background: var(--plum-deep); }
.styles h3 { margin: 16px 0 6px; font: 900 32px/1 var(--display); text-transform: uppercase; }
.styles p { margin: 0; font-size: 16px; color: var(--ink-2); }
@media (max-width: 760px) { .styles { grid-template-columns: minmax(0, 1fr); } .styles li { max-width: 440px; } }

/* feature list */
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; margin: 40px 0 0; padding: 0; list-style: none; }
.features li { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 14px; padding: 22px 0; border-top: 1px solid var(--line); }
.features svg { width: 24px; height: 24px; margin-top: 3px; color: var(--ink-2); }
.features h3 { font: 900 26px/1 var(--display); text-transform: uppercase; }
.features p { margin: 6px 0 0; font-size: 16px; color: var(--ink-2); }
@media (max-width: 760px) { .features { grid-template-columns: minmax(0, 1fr); } }

/* closing call */
.finale { text-align: left; padding: clamp(72px, 11vw, 140px) 0; }
.finale .title { font-size: clamp(56px, 10vw, 120px); }
.finale p { max-width: 30em; margin: 24px 0 0; font-size: 19px; color: var(--ink-2); }

/* ---------- inner pages (support, privacy, impressum) ---------- */
.page-hero { padding-top: calc(80px + clamp(16px, 5vw, 56px)); padding-bottom: clamp(36px, 5vw, 56px); }
.page-hero h1 { font: 900 clamp(56px, 10vw, 104px)/.88 var(--display); text-transform: uppercase; }
.page-hero p { max-width: 34em; margin: 18px 0 0; font-size: 19px; color: var(--ink-2); }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 0; }
.toc a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; font-weight: 800; text-decoration: none; color: var(--ink-2); }
.toc a:hover { color: var(--ink); background: var(--card); }
.doc { padding-bottom: clamp(56px, 8vw, 96px); }
.doc > * { max-width: 820px; }
.card { margin: 0 0 18px; padding: clamp(20px, 4vw, 32px); background: var(--card); border: 1px solid var(--line); border-radius: 14px; scroll-margin-top: 16px; }
.card h2 { margin: 0 0 14px; font: 900 clamp(32px, 5vw, 40px)/1 var(--display); text-transform: uppercase; }
.card h3 { margin: 22px 0 6px; font: 800 17px/1.3 var(--text); }
.card p, .card li { font-size: 16px; color: var(--ink-2); }
.card strong { color: var(--ink); }
.card ul { margin: 0 0 1em; padding-left: 1.2em; }
.card li { margin-bottom: 6px; }
.card .meta { font-size: 14px; color: var(--ink-3); }
.card a { color: var(--ink); }
.mail { display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 20px; background: var(--paper); color: var(--plum) !important; border-radius: 6px; font-weight: 800; text-decoration: none; word-break: break-all; }
.mail:hover { background: #fff; }
.mail svg { width: 18px; height: 18px; flex: none; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 52px; padding: 12px 0; font-weight: 800; font-size: 16px; color: var(--ink); cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; font: 800 22px/1 var(--text); color: var(--ink-3); }
.faq details[open] summary::after { content: "–"; }
.faq details > div { padding: 0 0 14px; }
.faq details p:last-child { margin-bottom: 0; }
.glossary { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 10px 18px; margin: 4px 0 0; }
.glossary dt { font: 900 20px/1.2 var(--display); text-transform: uppercase; color: var(--ink); }
.glossary dd { margin: 0; font-size: 16px; color: var(--ink-2); }
@media (max-width: 480px) { .glossary { grid-template-columns: minmax(0, 1fr); gap: 2px; } .glossary dd { margin-bottom: 10px; } }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--plum-deep); }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-top: 28px; padding-bottom: 28px; font-size: 14px; color: var(--ink-3); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 4px 6px; }
.site-footer nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 8px; color: var(--ink-2); text-decoration: none; }
.site-footer nav a:hover { color: var(--ink); text-decoration: underline; }
.site-footer p { margin: 0; }

/* ---------- motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .atmos > .bloom, .drift { animation: none; }
  .share i { transition: none; }
}