:root {
  --paper: #EEF1FA;
  --surface: #FFFFFF;
  --ink: #1C2142;
  --muted: #545B7D;
  --line: #D3D8EC;
  --accent: #4553CC;
  --accent-ink: #FFFFFF;
  --board: #2F3A9E;
  --peg: rgba(255, 255, 255, .16);
  --sun: #FFC542;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #12152A;
    --surface: #1A1E38;
    --ink: #E8EBFA;
    --muted: #A4AACB;
    --line: #2D3358;
    --accent: #8F9BFF;
    --accent-ink: #12152A;
    --board: #262E7A;
    --peg: rgba(255, 255, 255, .12);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #12152A; --surface: #1A1E38; --ink: #E8EBFA; --muted: #A4AACB;
  --line: #2D3358; --accent: #8F9BFF; --accent-ink: #12152A; --board: #262E7A;
  --peg: rgba(255, 255, 255, .12); color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1.0625rem/1.6 var(--body);
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: .18em; }
a:focus-visible, .btn:focus-visible, .shots:focus-visible {
  outline: 3px solid var(--sun); outline-offset: 3px; border-radius: 6px;
}
h1, h2, h3 { font-family: var(--display); line-height: 1.1; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 1.4rem + 3.2vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); font-weight: 700; }
p { margin: 0 0 1em; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 16px; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 32px); }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; flex-wrap: wrap; padding-block: 10px; }
.wordmark { display: inline-flex; align-items: baseline; gap: 6px; text-decoration: none; color: var(--ink); font-family: var(--display); }
.wm-num { font-weight: 800; font-size: 1.6rem; background: var(--sun); color: #1C2142; padding: 0 .3em; border-radius: 8px; line-height: 1.25; }
.wm-word { font-weight: 700; font-size: 1.35rem; letter-spacing: .04em; }
nav { display: flex; gap: 4px 18px; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; font-weight: 700; font-size: .98rem; padding: 4px 0; }
nav a:hover { color: var(--accent); }

/* Buttons */
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.btn { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 999px; font-weight: 700; text-decoration: none; border: 2px solid transparent; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-quiet { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-quiet:hover { border-color: var(--accent); }

/* Hero */
.hero { padding: clamp(40px, 7vw, 88px) 0 clamp(48px, 7vw, 96px); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.hero-grid > * { min-width: 0; }
.hero-copy h1 { max-width: 16ch; }
.lede { font-size: 1.18rem; color: var(--muted); max-width: 46ch; }

.board {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(10px, 2vw, 18px);
  padding: clamp(18px, 3vw, 30px);
  border-radius: var(--r-lg);
  background-color: var(--board);
  background-image: radial-gradient(var(--peg) 2px, transparent 2.5px);
  background-size: 22px 22px;
  background-position: 11px 11px;
}
.tile { display: block; min-width: 0; text-decoration: none; border-radius: 22%; transform: rotate(var(--tilt, 0deg)); transition: transform .2s ease; animation: drop .5s cubic-bezier(.2, .9, .3, 1.3) both; animation-delay: calc(var(--i) * 55ms + 120ms); }
.tile:nth-child(odd) { --tilt: -3deg; }
.tile:nth-child(3n) { --tilt: 4deg; }
.tile:hover, .tile:focus-visible { transform: rotate(0) scale(1.07); }
@keyframes drop { from { opacity: 0; transform: translateY(-14px) rotate(var(--tilt, 0deg)) scale(.85); } }

/* Icons */
.icon { border-radius: 22%; background: var(--surface); object-fit: cover; flex: none; }
.icon-board { width: 100%; height: auto; aspect-ratio: 1; box-shadow: 0 4px 0 rgba(0, 0, 0, .22); }
.icon-lg { width: 128px; height: 128px; }
.icon-md { width: 72px; height: 72px; }
.icon-sm { width: 48px; height: 48px; }
.icon-xs { width: 32px; height: 32px; border-radius: 24%; }
.monogram { display: grid; place-items: center; background: var(--mono); color: #fff; font: 800 1.1em/1 var(--display); }
.icon-board.monogram { font-size: clamp(1rem, 2.4vw, 1.6rem); }
.icon-lg.monogram { font-size: 2.6rem; }
.icon-md.monogram { font-size: 1.6rem; }
.icon-xs.monogram { font-size: .75rem; }

/* Sections */
.section { padding: clamp(48px, 7vw, 88px) 0; }
.section-alt { background: var(--surface); border-block: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 0; color: var(--muted); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 64px); align-items: start; }
.two-col p { max-width: 48ch; color: var(--muted); }

/* Shelf */
.shelf { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 32px; }
.shelf-link { display: flex; gap: 18px; align-items: flex-start; padding: 18px 0; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.shelf-link:hover .shelf-name { color: var(--accent); }
.shelf-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.shelf-name { font: 700 1.2rem/1.25 var(--display); }
.shelf-cat { color: var(--muted); font-size: .92rem; }
.shelf-tag { margin-top: 4px; }

/* Policy list on home */
.policy-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.policy-list a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: var(--r-sm); background: var(--surface); border: 1px solid var(--line); color: var(--ink); text-decoration: none; font-weight: 700; }
.policy-list a:hover { border-color: var(--accent); }

.contact-card { background: var(--paper); border-radius: var(--r-md); padding: 24px; border: 1px solid var(--line); }
.contact-mail { font: 700 clamp(1.15rem, 1rem + 1vw, 1.5rem)/1.3 var(--display); word-break: break-all; }
.contact-card p { margin: 12px 0 0; color: var(--muted); }

/* App page */
.app, .policy { padding: 28px 0 clamp(48px, 7vw, 88px); }
.crumbs { font-size: .95rem; color: var(--muted); margin-bottom: 24px; }
.app-head, .policy-head { display: flex; gap: clamp(18px, 3vw, 32px); align-items: center; margin-bottom: 32px; }
.app-head h1 { margin-bottom: .2em; }
.app-meta { color: var(--muted); margin: 0 0 .6em; }
.app-tag { font-size: 1.15rem; max-width: 52ch; }
.shots { display: flex; gap: 14px; overflow-x: auto; padding: 4px 2px 14px; margin-bottom: 32px; scroll-snap-type: x mandatory; }
.shots img { height: clamp(260px, 42vw, 420px); width: auto; border-radius: var(--r-md); border: 1px solid var(--line); scroll-snap-align: start; background: var(--surface); }
.app-body { display: grid; grid-template-columns: 1fr 300px; gap: clamp(24px, 5vw, 56px); align-items: start; }
.prose { max-width: 68ch; }
.prose h2 { margin-top: 1.6em; font-size: 1.35rem; }
.features { padding-left: 1.2em; }
.features li { margin-bottom: .35em; }
.facts { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 20px 22px; }
.facts dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }

/* Policy page */
.policy-head h1 { font-size: clamp(1.7rem, 1.3rem + 2vw, 2.6rem); margin-bottom: .25em; }
.policy-body .summary { font-size: 1.12rem; background: var(--surface); border-left: 4px solid var(--sun); padding: 16px 20px; border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.policy-body h2 { font-size: 1.3rem; }
.policy-body h3 { font-size: 1.1rem; margin-top: 1.4em; }
.policy-body .term { font-weight: 700; margin: 1.1em 0 .15em; overflow-wrap: anywhere; }
.policy-body blockquote { margin: 0 0 1em; padding-left: 1em; border-left: 3px solid var(--line); color: var(--muted); }
.policy-body ul { padding-left: 1.2em; }
.policy-body li { margin-bottom: .4em; }

.pi-list { list-style: none; padding: 0; margin: 28px 0; border-top: 1px solid var(--line); }
.pi-row a { display: grid; grid-template-columns: 48px 1fr; grid-template-rows: auto auto; column-gap: 16px; align-items: center; padding: 14px 4px; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.pi-row .icon { grid-row: span 2; }
.pi-name { font: 700 1.12rem/1.3 var(--display); }
.pi-meta { color: var(--muted); font-size: .92rem; }
.pi-row a:hover .pi-name { color: var(--accent); }
.note { color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); font-size: .95rem; }
.footer-row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-studio { font: 800 1.1rem/1 var(--display); color: var(--ink); margin-bottom: .5em; }
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--accent); }

@media (max-width: 860px) {
  .hero-grid, .two-col, .app-body { grid-template-columns: 1fr; }
  .shelf { grid-template-columns: 1fr; }
  .facts { max-width: 420px; }
}
@media (max-width: 520px) {
  body { font-size: 1rem; }
  .policy-list { grid-template-columns: 1fr; }
  .app-head, .policy-head { flex-direction: column; align-items: flex-start; }
  .icon-lg { width: 96px; height: 96px; }
  .board { gap: 8px; padding: 14px; }
  nav { gap: 4px 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tile { animation: none; transition: none; }
}