/* Real Puzzler site. Plain CSS, no build step. */
:root {
  --bg: #0b101a;
  --bg-2: #111826;
  --panel: #172033;
  --line: rgba(255, 255, 255, .12);
  --text: #eef2f9;
  --muted: #aab5ca;
  --pink: #ff5c93;
  --pink-ink: #ff8db3;
  --mint: #8ff0b0;
  --violet: #7b4de6;
  --gold: #f1c971;
  --header-h: 64px;
  --radius: 20px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* text sections follow the visitor's scheme; dark stage sections do not */
  --p-bg: #0e1422;
  --p-bg-alt: #121a2b;
  --p-card: #172136;
  --p-text: #eef2f9;
  --p-muted: #aab5ca;
  --p-line: rgba(255, 255, 255, .12);
  --p-accent: #ff8db3;
}
@media (prefers-color-scheme: light) {
  :root {
    --p-bg: #faf8f5;
    --p-bg-alt: #f1ede6;
    --p-card: #ffffff;
    --p-text: #171c29;
    --p-muted: #4b5568;
    --p-line: rgba(20, 28, 48, .14);
    --p-accent: #b81d57;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 1.0625rem/1.6 var(--font); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, video, svg, canvas { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; margin: 0; letter-spacing: -.015em; }
h2 { font-size: clamp(1.9rem, 4.2vw, 3rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 650; }
p { margin: 0 0 1em; }
a { color: var(--pink-ink); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--mint); outline-offset: 3px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: #fff; color: #000; padding: 10px 16px; border-radius: 10px; }
.skip:focus { top: 12px; }
.wrap { width: min(1160px, 100% - 40px); margin-inline: auto; }
.wrap.narrow { width: min(780px, 100% - 40px); }
.center { text-align: center; }
.fine { font-size: .875rem; color: var(--muted); }
.eyebrow { font-size: .8125rem; font-weight: 650; text-transform: uppercase; letter-spacing: .12em; color: var(--pink-ink); margin: 0 0 .9rem; }

/* sections */
section { position: relative; padding: clamp(64px, 10vw, 128px) 0; scroll-margin-top: calc(var(--header-h) + 16px); }
.stage { background: var(--bg); color: var(--text); }
.paper { background: var(--p-bg); color: var(--p-text); }
.paper.alt { background: var(--p-bg-alt); }
.paper .eyebrow, .paper a { color: var(--p-accent); }
.paper .fine, .paper .sub, .paper .meta-line { color: var(--p-muted); }
.sec-head { max-width: 720px; margin: 0 auto clamp(32px, 5vw, 56px); text-align: center; }
.sec-head .sub { margin: 1rem 0 0; color: var(--muted); font-size: 1.125rem; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border-radius: 999px; background: var(--pink); color: #1a0710 !important; font-weight: 650; text-decoration: none; border: 0; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(255, 92, 147, .35); }
.btn-small { min-height: 40px; padding: 0 18px; font-size: .95rem; }
.btn-ghost { background: transparent; color: var(--text) !important; box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-ghost:hover { background: rgba(255, 255, 255, .06); box-shadow: inset 0 0 0 1.5px var(--text); }

/* header */
.site-header { position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h); background: rgba(11, 16, 26, .72); -webkit-backdrop-filter: saturate(160%) blur(16px); backdrop-filter: saturate(160%) blur(16px); border-bottom: 1px solid var(--line); color: var(--text); }
.bar { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text) !important; font: 700 1.05rem var(--font-display); text-decoration: none; }
.brand img { border-radius: 9px; }
#site-nav { display: flex; align-items: center; gap: 22px; }
#site-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
#site-nav li a { display: block; padding: 8px 12px; border-radius: 999px; color: var(--muted); text-decoration: none; font-size: .95rem; transition: color .2s, background .2s; }
#site-nav li a:hover, #site-nav li a.is-active { color: var(--text); background: rgba(255, 255, 255, .08); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--text); cursor: pointer; border-radius: 10px; position: relative; }
.nav-toggle i, .nav-toggle i::before, .nav-toggle i::after { content: ""; position: absolute; left: 11px; right: 11px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .25s, opacity .2s; }
.nav-toggle i { top: 21px; }
.nav-toggle i::before { top: -7px; left: 0; right: 0; }
.nav-toggle i::after { top: 7px; left: 0; right: 0; }
.nav-toggle[aria-expanded="true"] i { background: transparent; }
.nav-toggle[aria-expanded="true"] i::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] i::after { transform: translateY(-7px) rotate(-45deg); }
.progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; }
.progress i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--pink), var(--violet)); transform-origin: 0 50%; transform: scaleX(0); }
@supports (animation-timeline: scroll()) {
  .progress i { animation: grow linear both; animation-timeline: scroll(root); }
  @keyframes grow { to { transform: scaleX(1); } }
}

/* hero */
.hero { min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding: calc(var(--header-h) + 32px) 0 72px; overflow: hidden; background: radial-gradient(1100px 700px at 78% 40%, #2a1b52 0%, rgba(42, 27, 82, 0) 60%), radial-gradient(800px 500px at 10% 100%, #3a1530 0%, rgba(58, 21, 48, 0) 60%), var(--bg); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.floaters { position: absolute; inset: 0; }
.floaters svg { position: absolute; width: var(--s); height: var(--s); left: var(--x); top: var(--y); opacity: var(--o, .5); transform: rotate(var(--r)); animation: drift var(--t, 16s) ease-in-out infinite alternate; animation-delay: var(--dl, 0s); will-change: transform; }
.floaters path { fill: var(--c); }
@keyframes drift { from { transform: translate3d(0, 0, 0) rotate(var(--r)); } to { transform: translate3d(var(--dx, 14px), var(--dy, -26px), 0) rotate(calc(var(--r) + 14deg)); } }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(16px, 4vw, 56px); }
.banner { width: min(640px, 100%); height: auto; filter: drop-shadow(0 10px 28px rgba(0, 0, 0, .45)); }
.hero-line { font: 700 clamp(1.5rem, 3vw, 2.15rem)/1.2 var(--font-display); margin: 1.4rem 0 .8rem; letter-spacing: -.01em; }
.lead { color: var(--muted); font-size: 1.2rem; max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; margin: 1.6rem 0 1.3rem; }
.store img { height: 56px; width: auto; transition: transform .2s; }
.store:hover img { transform: translateY(-2px) scale(1.02); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 .9rem; list-style: none; }
.pills li { padding: 5px 14px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); font-size: .875rem; background: rgba(255, 255, 255, .04); }
.piece-stage { position: relative; aspect-ratio: 1; width: min(100%, 560px); margin-inline: auto; }
.piece-stage canvas, .piece-poster { position: absolute; inset: 0; width: 100%; height: 100%; }
.piece-stage canvas { touch-action: pan-y; cursor: grab; border-radius: 24px; }
.piece-stage canvas.is-dragging { cursor: grabbing; }
.piece-poster { object-fit: contain; transition: opacity .6s; }
.piece-stage.is-live .piece-poster { opacity: 0; pointer-events: none; }
.piece-hint { position: absolute; left: 0; right: 0; bottom: 0; text-align: center; font-size: .85rem; color: var(--muted); margin: 0; pointer-events: none; }
.scroll-cue { position: absolute; left: 50%; bottom: 18px; width: 28px; height: 44px; margin-left: -14px; border: 2px solid var(--line); border-radius: 16px; }
.scroll-cue i { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: var(--muted); animation: cue 1.8s infinite; }
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* at a glance */
.glance { padding: 0; background: var(--bg-2); border-block: 1px solid var(--line); }
.stats { list-style: none; margin-block: 0; padding: 36px 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center; }
.stats b { display: block; font: 750 clamp(1.8rem, 3.6vw, 2.8rem)/1.1 var(--font-display); background: linear-gradient(135deg, #fff, var(--pink-ink)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stats span { color: var(--muted); font-size: .95rem; }

/* video */
.split { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: clamp(28px, 6vw, 80px); }
.phone-frame { position: relative; margin: 0 auto; width: min(100%, 420px); padding: 12px; border-radius: 34px; background: #05070b; box-shadow: inset 0 0 0 2px #2c3547, 0 40px 80px rgba(0, 0, 0, .55), 0 0 90px rgba(123, 77, 230, .22); }
.phone-frame video { width: 100%; height: auto; aspect-ratio: 3 / 4; border-radius: 22px; background: #000; object-fit: cover; }
.vid-toggle { position: absolute; right: 22px; bottom: 22px; min-height: 36px; padding: 0 14px; border-radius: 999px; border: 0; background: rgba(0, 0, 0, .62); color: #fff; font: 600 .8rem var(--font); cursor: pointer; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.ticks { list-style: none; padding: 0; margin: 1.2rem 0; }
.ticks li { position: relative; padding: 6px 0 6px 32px; color: var(--muted); }
.ticks li::before { content: ""; position: absolute; left: 4px; top: 13px; width: 10px; height: 10px; border-radius: 3px; background: var(--mint); transform: rotate(45deg); }
.copy h2 { margin-bottom: 1rem; }
.copy p { color: var(--muted); }

/* cards */
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--p-card); border: 1px solid var(--p-line); border-radius: var(--radius); padding: 26px; transition: transform .25s, box-shadow .25s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0, 0, 0, .18); }
.card h3 { margin-bottom: .55rem; }
.card p { color: var(--p-muted); margin: 0 0 .8em; }
.card svg { width: 52px; height: 52px; margin-bottom: 18px; fill: none; stroke: var(--p-accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.card .meta { font-size: .85rem; font-weight: 600; color: var(--p-accent); margin: 0; }

/* tabs */
.tablist { display: flex; flex-wrap: wrap; gap: 6px; padding: 5px; width: fit-content; max-width: 100%; margin: 0 auto 28px; border-radius: 999px; background: rgba(255, 255, 255, .07); border: 1px solid var(--line); }
.paper .tablist { background: var(--p-card); border-color: var(--p-line); }
[role="tab"] { appearance: none; border: 0; background: transparent; color: var(--muted); font: 600 .95rem var(--font); min-height: 42px; padding: 0 20px; border-radius: 999px; cursor: pointer; transition: color .2s, background .2s; }
.paper [role="tab"] { color: var(--p-muted); }
[role="tab"]:hover { color: var(--text); }
.paper [role="tab"]:hover { color: var(--p-text); }
[role="tab"][aria-selected="true"] { background: var(--pink); color: #1a0710; }
.paper [role="tab"][aria-selected="true"] { color: #1a0710; }
[role="tabpanel"][hidden] { display: none; }
[role="tabpanel"] { animation: fadeUp .45s both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* carousel + device frames */
.carousel { position: relative; }
.track { display: flex; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; padding: 10px max(20px, calc((100vw - 1160px) / 2)) 22px; margin-inline: calc(50% - 50vw); scrollbar-width: none; overscroll-behavior-x: contain; }
.track::-webkit-scrollbar { display: none; }
.track:focus-visible { outline-offset: -4px; }
.slide { flex: 0 0 auto; margin: 0; scroll-snap-align: center; }
.device { padding: 11px; background: #05070b; box-shadow: inset 0 0 0 2px #2c3547, 0 28px 60px rgba(0, 0, 0, .5); }
.device img { width: 100%; height: auto; background: #0e1422; }
.device.ipad { width: min(78vw, 340px); border-radius: 30px; }
.device.ipad img { border-radius: 20px; aspect-ratio: 1100 / 1467; }
.device.phone { width: min(74vw, 320px); border-radius: 38px; }
.device.phone img { border-radius: 28px; aspect-ratio: 1100 / 1564; }
.device.glass { width: min(88vw, 640px); padding: 8px; border-radius: 34px; background: rgba(255, 255, 255, .09); box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .22), 0 30px 70px rgba(0, 0, 0, .5), 0 0 80px rgba(123, 77, 230, .2); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.device.glass img { border-radius: 26px; aspect-ratio: 16 / 9; }
.slide figcaption { padding: 14px 6px 2px; font-size: .9rem; color: var(--muted); text-align: center; }
.car-ctl { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 6px; }
.car-ctl button { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255, 255, 255, .06); color: var(--text); cursor: pointer; position: relative; transition: background .2s, opacity .2s; }
.car-ctl button:hover:not(:disabled) { background: rgba(255, 255, 255, .14); }
.car-ctl button:disabled { opacity: .35; cursor: default; }
.car-ctl button::before { content: ""; position: absolute; left: 50%; top: 50%; width: 9px; height: 9px; border: solid currentColor; border-width: 2px 2px 0 0; transform: translate(-65%, -50%) rotate(45deg); }
.car-ctl .prev::before { transform: translate(-35%, -50%) rotate(-135deg); }
.dots { display: flex; gap: 8px; }
.dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, .28); transition: background .2s, transform .2s; }
.dots i.on { background: var(--pink); transform: scale(1.3); }
#gallery .fine { margin-top: 14px; }

/* how to play */
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0 auto clamp(40px, 6vw, 72px); display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 1160px; }
.steps li { counter-increment: s; position: relative; background: var(--p-card); border: 1px solid var(--p-line); border-radius: var(--radius); padding: 62px 22px 22px; color: var(--p-muted); }
.steps li::before { content: counter(s); position: absolute; left: 22px; top: 18px; width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; background: var(--pink); color: #1a0710; font: 700 1rem var(--font-display); }
.steps b { display: block; color: var(--p-text); margin-bottom: 4px; font-size: 1.05rem; }
.tabs-title { text-align: center; margin-bottom: 22px; }
.controls { list-style: none; padding: 0; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 900px; }
.controls li { background: var(--p-card); border: 1px solid var(--p-line); border-radius: 16px; padding: 20px 22px; }
.controls b { display: block; color: var(--p-accent); font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 6px; }
.controls span { color: var(--p-text); }

/* badges */
.badges { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 22px 14px; }
.badges li { text-align: center; }
.badges img { width: 100%; max-width: 128px; height: auto; margin: 0 auto 10px; border-radius: 50%; filter: drop-shadow(0 12px 22px rgba(0, 0, 0, .5)); transition: transform .3s; }
.badges li:hover img { transform: translateY(-5px) rotate(-3deg) scale(1.05); }
.badges span { display: block; font-size: .85rem; color: var(--muted); line-height: 1.35; }

/* faq */
.faq details { border-bottom: 1px solid var(--p-line); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 40px 20px 0; font-weight: 650; position: relative; font-size: 1.1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-size: 1.6rem; font-weight: 400; color: var(--p-accent); transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--p-muted); margin: 0 0 20px; }

/* policy */
.policy { border-top: 1px solid var(--p-line); background: var(--p-bg-alt); }
.policy h2 { margin-bottom: .6rem; }
.policy h3 { margin: 2rem 0 .5rem; }
.policy .meta-line { font-size: .95rem; }
.policy .summary { font-size: 1.15rem; padding: 18px 22px; border-radius: 16px; background: var(--p-card); border: 1px solid var(--p-line); border-left: 4px solid var(--pink); margin: 1.4rem 0 0; }
.policy ul { padding-left: 1.2em; }
.policy li { margin: .4em 0; }
.policy :target, .policy:target { animation: flash 1.6s ease-out 1; }
@keyframes flash { 0% { box-shadow: inset 0 0 0 3px var(--pink); } 100% { box-shadow: inset 0 0 0 3px transparent; } }

/* footer */
.site-footer { padding: 56px 0 40px; border-top: 1px solid var(--line); background: var(--bg); }
.foot { display: grid; grid-template-columns: 1fr auto; gap: 24px 40px; align-items: center; }
.foot-brand { display: flex; align-items: center; gap: 14px; }
.foot-brand img { border-radius: 13px; }
.foot-brand b { display: block; font: 700 1.15rem var(--font-display); }
.foot-brand span { color: var(--muted); font-size: .95rem; }
.site-footer ul { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 0; padding: 0; }
.site-footer a { color: var(--text); }
.legal { grid-column: 1 / -1; margin: 0; font-size: .8rem; color: var(--muted); }

/* scroll reveal: content is visible unless JS is running and the element has not entered yet */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.2, .7, .2, 1) var(--d, 0ms), transform .8s cubic-bezier(.2, .7, .2, 1) var(--d, 0ms); }
.js .reveal.in { opacity: 1; transform: none; }

/* responsive */
@media (max-width: 980px) {
  .cards4 { grid-template-columns: repeat(2, 1fr); }
  .grid3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .badges { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  #site-nav { position: fixed; left: 0; right: 0; top: var(--header-h); flex-direction: column; align-items: stretch; gap: 8px; padding: 14px 20px 22px; background: rgba(11, 16, 26, .96); border-bottom: 1px solid var(--line); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: transform .25s, opacity .25s, visibility .25s; }
  .js #site-nav.open { transform: none; opacity: 1; visibility: visible; }
  html:not(.js) #site-nav { position: static; flex-direction: row; flex-wrap: wrap; opacity: 1; visibility: visible; transform: none; background: none; padding: 0; }
  #site-nav ul { flex-direction: column; }
  #site-nav li a { padding: 12px 10px; font-size: 1.05rem; }
  #site-nav .btn { align-self: flex-start; }
  .hero { min-height: 0; padding-top: calc(var(--header-h) + 24px); }
  .hero-grid { grid-template-columns: 1fr; }
  .piece-stage { order: -1; width: min(78vw, 360px); }
  .hero-copy { text-align: center; }
  .banner, .lead { margin-inline: auto; }
  .cta, .pills { justify-content: center; }
  .scroll-cue { display: none; }
  .split { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .foot { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 1rem; }
  .cards4, .grid3, .steps, .controls { grid-template-columns: 1fr; }
  .badges { grid-template-columns: repeat(3, 1fr); }
  [role="tab"] { padding: 0 14px; }
  .brand span { font-size: 1rem; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .floaters svg { animation: none; }
  .track { scroll-behavior: auto; }
}

/* landscape iPhone and Mac screenshots */
.device.phone-land { width: min(88vw, 640px); border-radius: 34px; align-self: center; }
.device.phone-land img { border-radius: 24px; aspect-ratio: 1400 / 644; }
.device.mac { width: min(88vw, 720px); padding: 8px; border-radius: 16px; align-self: center; }
.device.mac img { border-radius: 9px; }