:root {
  --primary: #000044; --accent: #008396; --soft: #7AB4C1;
  --bg: #fff; --fg: #111; --muted: #5b6470; --line: #d9dde3; --field: #f5f6f8;
  --danger: #b5384b; --radius: 10px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #000; --fg: #f2f2f2; --muted: #a3abb5; --line: #2c3138; --field: #12151a; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Open Sans", sans-serif; }
a { color: var(--accent); }
.sprite { position: absolute; }
.ic { width: 1.2em; height: 1.2em; vertical-align: -0.25em; }

.bar { position: sticky; top: 0; z-index: 2; height: 56px; display: flex; align-items: center;
  justify-content: center; background: var(--primary); color: #fff; }
.brand { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.25rem; letter-spacing: .02em; }
.back { position: absolute; left: 8px; color: #fff; text-decoration: none; font-size: 1.5rem;
  width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; }
.back:hover, .back:focus-visible { background: rgba(255,255,255,.12); }

.wrap { max-width: 960px; margin: 0 auto; padding: 16px 16px calc(var(--dock-h, 0px) + 32px); }
h1 { font-size: 1.5rem; margin: 8px 0 16px; }
.notice { margin: 0 0 16px; font-size: .875rem; color: var(--muted); }
.empty { color: var(--muted); text-align: center; margin: 48px 0; }

.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
li { position: relative; }
.tile { display: flex; align-items: center; gap: 16px; min-height: 120px; padding: 20px 24px;
  border-radius: var(--radius); color: #fff; text-decoration: none; position: relative;
  box-shadow: inset 0 0 0 3px rgba(0,0,0,.15); transition: transform .12s; }
.tile:hover { transform: translateY(-2px); }
.tile:focus-visible { outline: 3px solid var(--fg); outline-offset: 3px; }
.tile .ic { width: 40px; height: 40px; flex: none; filter: drop-shadow(0 1px 1px rgba(0,0,0,.6)); }
.tile-title { font-size: 1.6rem; font-weight: 700; line-height: 1.2; overflow-wrap: anywhere;
  text-shadow: 0 1px 2px rgba(0,0,0,.6); }
.tile-edit { position: absolute; top: 6px; right: 6px; color: #fff; font-size: .8rem; padding: 4px 8px;
  border-radius: 6px; background: rgba(0,0,0,.25); text-decoration: none; }

.dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 3;
  padding-bottom: env(safe-area-inset-bottom); }
.dock:has(> :not([hidden])) { background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-top: 1px solid var(--line); }
.new { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; padding: 12px 16px; }

.btn { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 16px;
  border-radius: 999px; border: 1px solid var(--line); background: var(--field); color: var(--fg);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--danger); }
.btn:focus-visible { outline: 3px solid var(--soft); outline-offset: 2px; }

.split { display: grid; gap: 24px; }
@media (min-width: 760px) { .split { grid-template-columns: 1fr 340px; align-items: start; }
  .preview { position: sticky; top: 72px; } }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-weight: 600; margin-bottom: 4px; }
.field b { color: var(--danger); font-weight: 600; }
input, textarea { width: 100%; font: inherit; color: inherit; background: var(--field);
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
.field.invalid input, .field.invalid textarea { border-color: var(--danger); }
.err { display: block; min-height: 1.2em; color: var(--danger); font-size: .85rem; }
details.optional { margin: 4px 0 14px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; }
details.optional summary { cursor: pointer; font-weight: 600; padding: 4px 0; }
details.optional[open] summary { margin-bottom: 8px; }
.swatches { display: flex; flex-wrap: wrap; gap: 10px; }
.swatch input { position: absolute; opacity: 0; }
.swatch span { display: block; width: 36px; height: 36px; border-radius: 50%; cursor: pointer;
  background: var(--sw); box-shadow: inset 0 0 0 2px rgba(0,0,0,.15); }
.swatch input:checked + span { outline: 3px solid var(--fg); outline-offset: 2px; }
.swatch input:focus-visible + span { outline: 3px solid var(--soft); outline-offset: 2px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }

.qr-frame { --c: var(--accent); background: var(--c); padding: 14px; border-radius: 14px;
  width: 100%; max-width: 340px; margin: 0 auto; }
.qr-frame.big { max-width: 380px; }
.qr-box { background: #fff; border-radius: 6px; aspect-ratio: 1; display: grid; place-items: center;
  color: #6b7280; font-size: .9rem; text-align: center; padding: 8px; }
.qr-box svg { width: 100%; height: auto; display: block; }
.qr-box.has-qr { padding: 0; }
.show { text-align: center; padding-top: 8px; }
.show-title { font-size: 2rem; margin: 20px 0 12px; overflow-wrap: anywhere; }
.show .actions { justify-content: center; }
@media (max-width: 759px) {
  .preview { order: -1; }
  .preview .qr-frame { max-width: 220px; padding: 10px; }
}
@media (prefers-color-scheme: dark) {
  .swatch span { box-shadow: inset 0 0 0 2px rgba(255,255,255,.25); }
}
.acct { position: absolute; right: 8px; }
a.acct, .acct button { color: #fff; font: inherit; font-size: .9rem; font-weight: 600; background: none;
  border: 1px solid rgba(255,255,255,.35); border-radius: 999px; padding: 6px 12px; cursor: pointer;
  text-decoration: none; }
a.acct:hover, .acct button:hover { background: rgba(255,255,255,.12); }
.narrow { max-width: 440px; margin: 24px auto 0; }
.flash { background: var(--field); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.banner { border: 1px solid var(--accent); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px; }
.banner p { margin: 0 0 8px; }

.install { display: flex; align-items: center; gap: 12px; max-width: 960px; margin: 0 auto;
  padding: 12px 16px; }
.install img { border-radius: 10px; flex: none; }
.install-text { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.3; }
.install-text span { color: var(--muted); font-size: .875rem; }
.install-close { flex: none; width: 36px; height: 36px; border-radius: 50%; border: 0; background: none;
  color: var(--muted); font-size: 1.5rem; line-height: 1; cursor: pointer; }
.install-close:hover { background: var(--field); color: var(--fg); }
.install + .new { border-top: 1px solid var(--line); }
.toggle { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; cursor: pointer; }
.toggle input { width: 20px; height: 20px; accent-color: var(--accent); flex: none; }
.toggle .hint { display: block; color: var(--muted); font-size: .8rem; }
.toggle { align-items: flex-start; }
.toggle input { margin-top: 2px; }