:root {
  --abyss: #05050f;
  --deep: #0b0924;
  --water: #141030;
  --panel: rgba(255, 255, 255, 0.045);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.11);
  --text: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.66);
  --text-faint: rgba(255, 255, 255, 0.42);
  --sonar: #2ee3ff;
  --tide: #8c5cff;
  --flare: #ff3da8;
  --brass: #ffb33d;
  --foam: #dce6ff;
  --lime: #b5ff3d;
  --radius: 22px;
  --max: 1160px;
  --font: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--abyss);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button { font: inherit; color: inherit; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 20;
  padding: 10px 16px; border-radius: 999px;
  background: var(--sonar); color: var(--abyss); font-weight: 800; text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* ---------- ambient background ---------- */

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: linear-gradient(#141030, var(--deep) 40%, var(--abyss) 85%);
  overflow: hidden;
  pointer-events: none;
}
.backdrop::before,
.backdrop::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  animation: drift 20s ease-in-out infinite alternate;
}
.backdrop::before {
  width: 60vmax; height: 60vmax;
  left: -20vmax; top: -28vmax;
  background: rgba(140, 92, 255, 0.2);
}
.backdrop::after {
  width: 60vmax; height: 60vmax;
  right: -25vmax; top: 20vh;
  background: rgba(46, 227, 255, 0.12);
  animation-delay: -10s;
}
.paper {
  position: absolute;
  inset: -40px;
  background-image:
    linear-gradient(rgba(220, 230, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 230, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: slide 30s linear infinite;
}

@keyframes drift { to { transform: translate(6vmax, 4vmax) scale(1.08); } }
@keyframes slide { to { transform: translate(40px, 40px); } }

/* ---------- layout ---------- */

.wrap { width: min(var(--max), 100% - 32px); margin-inline: auto; }

section { padding: 96px 0; }

.kicker {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--sonar);
}

h1, h2, h3 { line-height: 1.08; letter-spacing: -0.02em; font-weight: 850; }
h1 { font-size: clamp(44px, 7vw, 84px); }
h2 { font-size: clamp(34px, 4.6vw, 54px); }
h3 { font-size: 21px; letter-spacing: -0.01em; }

.grad {
  background: linear-gradient(90deg, var(--sonar), var(--tide));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hot { color: var(--flare); }

.lede { font-size: clamp(18px, 2vw, 21px); color: var(--text-dim); max-width: 34em; }

.section-head { text-align: center; margin-bottom: 56px; }
.section-head .kicker { margin-bottom: 16px; }
.section-head .lede { margin: 18px auto 0; }

.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

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

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 5, 15, 0.6);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; font-size: 18px; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.nav-links { display: flex; gap: 28px; margin-left: auto; list-style: none; }
.nav-links a { text-decoration: none; color: var(--text-dim); font-size: 15px; font-weight: 600; transition: color 0.2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 54px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  text-decoration: none;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.25s ease, background 0.2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--sonar); outline-offset: 3px; }
.btn-primary {
  border: 0;
  color: var(--abyss);
  background: linear-gradient(90deg, var(--sonar), var(--tide));
  box-shadow: 0 0 28px rgba(46, 227, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 0 44px rgba(140, 92, 255, 0.55); }
.btn-sm { height: 42px; padding: 0 18px; font-size: 14px; }
.btn svg { width: 20px; height: 20px; flex: none; }
.badge-soon {
  display: inline-flex; align-items: center; gap: 10px;
  height: 54px; padding: 0 22px; border-radius: 999px;
  border: 1px dashed rgba(46, 227, 255, 0.55);
  color: var(--sonar); font-weight: 800;
}
.badge-soon svg { width: 20px; height: 20px; }

/* ---------- dot-and-box art (CSS) ---------- */

.tile {
  --c: var(--sonar);
  --u: 56px;
  position: relative;
  width: var(--u);
  height: var(--u);
  flex: none;
  border-radius: calc(var(--u) * 0.14);
  border: max(2px, calc(var(--u) * 0.07)) solid var(--c);
  background: color-mix(in srgb, var(--c) 22%, transparent);
  box-shadow: 0 0 calc(var(--u) * 0.35) color-mix(in srgb, var(--c) 55%, transparent);
}
.tile::before, .tile::after {
  content: "";
  position: absolute;
  width: calc(var(--u) * 0.2); height: calc(var(--u) * 0.2);
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.8), calc(var(--u) * 1.0 - 0px) 0 0 #fff;
}
.tile::before { left: calc(var(--u) * -0.17); top: calc(var(--u) * -0.17); }
.tile::after { left: calc(var(--u) * -0.17); bottom: calc(var(--u) * -0.17); }
.tile.pink { --c: var(--flare); }
.tile.lime { --c: var(--lime); }
.tile.amber { --c: var(--brass); }
.tile.open { background: transparent; border-style: dashed; border-color: rgba(220, 230, 255, 0.25); box-shadow: none; }

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

.hero { padding: 80px 0 100px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero h1 { margin: 20px 0 24px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-meta { margin-top: 26px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em; color: var(--text-faint); text-transform: uppercase; }

.phone-stage { position: relative; display: flex; justify-content: center; }
.phone {
  position: relative;
  width: min(330px, 78vw);
  padding: 12px;
  border-radius: 54px;
  background: linear-gradient(145deg, #3d3a5e, #0b0a1c 40%, #201d3a);
  box-shadow: 0 0 0 1.5px rgba(46, 227, 255, 0.35), 0 0 80px rgba(140, 92, 255, 0.25), 0 40px 80px rgba(0, 0, 0, 0.6);
}
.phone img { width: 100%; border-radius: 43px; }
.phone::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 23px;
  width: 25%;
  height: 3.4%;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #000;
}
.float { position: absolute; animation: bob 6s ease-in-out infinite; }
.float.f1 { --u: 64px; left: -6%; top: 14%; rotate: -16deg; }
.float.f2 { --u: 50px; right: -4%; top: 52%; rotate: 14deg; animation-delay: -2s; }
.float.f3 { --u: 42px; left: 2%; bottom: 8%; rotate: 10deg; animation-delay: -4s; }
@keyframes bob { 50% { translate: 0 -14px; } }

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

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step { padding: 28px 24px; display: flex; flex-direction: column; gap: 18px; }
.step .label { font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 0.22em; color: var(--sonar); }
.step p { color: var(--text-dim); font-size: 16px; }
.step-art { height: 64px; display: flex; align-items: center; gap: 8px; }
.step-art .tile { --u: 44px; }

.fleet-list { margin-top: 18px; padding: 26px 30px; display: grid; grid-template-columns: repeat(5, auto); justify-content: space-between; gap: 18px; }
.fleet-list div { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.fleet-list .size { font-size: 26px; font-weight: 900; color: var(--sonar); }
.fleet-list strong { font-size: 16px; }
.fleet-list span { font-family: var(--mono); font-size: 12px; color: var(--text-faint); letter-spacing: 0.1em; }

/* ---------- playable demo ---------- */

.demo { max-width: 560px; margin-inline: auto; padding: 24px; }
.demo-hud { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.score {
  --c: var(--sonar);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 14px; border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
  background: color-mix(in srgb, var(--c) 6%, transparent);
  font-weight: 800;
}
.score.cpu { --c: var(--flare); }
.score strong { font-size: 26px; color: var(--c); line-height: 1; }
.score.active { border-color: var(--c); background: color-mix(in srgb, var(--c) 16%, transparent); box-shadow: 0 0 18px color-mix(in srgb, var(--c) 35%, transparent); }
.board-svg { display: block; width: 100%; height: auto; touch-action: manipulation; }
.board-svg .box { fill: transparent; }
.board-svg .box.p0 { fill: rgba(46, 227, 255, 0.22); stroke: rgba(46, 227, 255, 0.5); }
.board-svg .box.p1 { fill: rgba(255, 61, 168, 0.22); stroke: rgba(255, 61, 168, 0.5); }
.board-svg .guide { stroke: rgba(220, 230, 255, 0.16); stroke-width: 3; stroke-dasharray: 5 7; stroke-linecap: round; }
.board-svg .hit { stroke: transparent; stroke-width: 38; stroke-linecap: round; cursor: pointer; }
.board-svg .hit:hover + .guide, .board-svg .hit:focus-visible + .guide { stroke: rgba(46, 227, 255, 0.7); stroke-dasharray: none; stroke-width: 6; }
.board-svg .hit:focus { outline: none; }
.board-svg .ink { stroke-width: 8; stroke-linecap: round; }
.board-svg .ink.p0 { stroke: var(--sonar); filter: drop-shadow(0 0 5px var(--sonar)); }
.board-svg .ink.p1 { stroke: var(--flare); filter: drop-shadow(0 0 5px var(--flare)); }
.board-svg .ink.new { animation: draw 0.25s ease-out; }
.board-svg .guide, .board-svg .ink, .board-svg .dot, .board-svg .box { pointer-events: none; }
.board-svg .dot { fill: #fff; filter: drop-shadow(0 0 4px rgba(220, 230, 255, 0.9)); }
@keyframes draw { from { stroke-dasharray: 0 200; } to { stroke-dasharray: 200 0; } }

.demo-controls { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.demo-status { min-height: 1.5em; color: var(--text-dim); font-size: 15px; }
.demo-status.hot { color: var(--sonar); font-weight: 700; }
.demo-note { margin-top: 14px; text-align: center; color: var(--text-faint); font-size: 14px; }

/* ---------- features ---------- */

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { padding: 30px 28px; }
.feature .icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border-radius: 14px;
  margin-bottom: 20px;
  color: var(--sonar);
  background: rgba(46, 227, 255, 0.1);
  border: 1px solid rgba(46, 227, 255, 0.35);
}
.feature .icon svg { width: 24px; height: 24px; }
.feature p { margin-top: 10px; color: var(--text-dim); font-size: 16px; }

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

.gallery {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 8px 16px 24px;
  scroll-padding-inline: 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(46, 227, 255, 0.4) transparent;
}
.gallery img {
  flex: none;
  width: min(270px, 70vw);
  border-radius: 26px;
  scroll-snap-align: start;
  border: 1px solid var(--line);
}
@media (min-width: 1240px) { .gallery { justify-content: center; } }

/* ---------- CTA ---------- */

.cta-card { padding: 72px 32px; text-align: center; position: relative; overflow: hidden; }
.cta-card .tiles-row { display: flex; justify-content: center; align-items: center; gap: 30px; margin-bottom: 40px; flex-wrap: wrap; }
.cta-card .tiles-row .tile { --u: 60px; }
.cta-card .lede { margin: 18px auto 32px; }

/* ---------- content pages ---------- */

.page-head { padding: 88px 0 40px; }
.page-head h1 { font-size: clamp(40px, 6vw, 64px); margin-top: 16px; }
.page-head .lede { margin-top: 18px; }
.prose { padding: 40px; max-width: 820px; }
.prose h2 { font-size: 26px; margin: 36px 0 12px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--text-dim); font-size: 17px; }
.prose p + p { margin-top: 12px; }
.prose ul, .prose ol { margin: 12px 0 0 22px; display: grid; gap: 8px; }
.prose a { color: var(--sonar); }
.prose strong { color: var(--text); }
.updated { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; color: var(--text-faint); text-transform: uppercase; }
.page-body { padding-bottom: 96px; display: grid; gap: 24px; }

.support-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 24px; align-items: start; }
.contact { padding: 32px; position: sticky; top: 96px; }
.contact p { color: var(--text-dim); margin: 12px 0 24px; }
.contact .email { font-family: var(--mono); font-size: 15px; color: var(--sonar); word-break: break-all; }
.faq { display: grid; gap: 12px; }
.faq details { padding: 0 24px; }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 0;
  font-weight: 800;
  font-size: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--sonar); font-size: 22px; line-height: 1; transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--text-dim); padding-bottom: 22px; margin-top: -6px; }

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

footer { border-top: 1px solid var(--line); padding: 40px 0 48px; color: var(--text-faint); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
footer nav { display: flex; gap: 22px; margin-left: auto; }
footer a { text-decoration: none; color: var(--text-dim); }
footer a:hover { color: var(--text); }

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  .hero .wrap, .support-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; text-align: center; }
  .hero .lede { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr 1fr; }
  .fleet-list { grid-template-columns: repeat(3, auto); justify-content: start; gap: 22px 36px; }
  .contact { position: static; }
}

@media (max-width: 640px) {
  section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav .btn { margin-left: auto; }
  .steps, .features { grid-template-columns: 1fr; }
  .fleet-list { grid-template-columns: 1fr 1fr; padding: 22px; }
  .demo { padding: 14px; }
  .score strong { font-size: 22px; }
  .prose { padding: 24px; }
  .cta-card { padding: 56px 20px; }
  .cta-card .tiles-row .tile { --u: 46px; }
  footer nav { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}