/* Foldroom — a ten-seat garden room on a pale mesh ground. Light theme, CA strip pinned at the top, a letter first. */
:root {
  --fr-ground: #F4F1EA;
  --fr-ink: #1D2420;
  --fr-soft: #5B6660;
  --fr-leaf: #2F6B4F;
  --fr-leaf-2: #4C8C6B;
  --fr-bloom: #E3A54A;
  --fr-card: rgba(255, 253, 248, .78);
  --fr-line: rgba(29, 36, 32, .12);
  --fr-r: 22px;
  --fr-display: 'Petrona', Georgia, serif;
  --fr-body: 'Figtree', system-ui, sans-serif;
  --fr-mono: 'DM Mono', ui-monospace, monospace;
}
* { box-sizing: border-box; }
html { background: var(--fr-ground); }
body {
  margin: 0; color: var(--fr-ink); font: 400 16px/1.5 var(--fr-body);
  background-color: var(--fr-ground);
  background-image:
    radial-gradient(60vw 50vw at 8% 4%, rgba(160, 205, 175, .55), transparent 70%),
    radial-gradient(55vw 45vw at 96% 18%, rgba(244, 196, 160, .50), transparent 70%),
    radial-gradient(70vw 60vw at 60% 92%, rgba(200, 190, 232, .40), transparent 70%),
    radial-gradient(50vw 40vw at 20% 70%, rgba(250, 226, 168, .40), transparent 70%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
code { font-family: var(--fr-mono); }
a { color: inherit; }

/* ---------- the CA strip (sticky, top) ---------- */
.fr-castrip {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 8px 12px; margin: 0;
  background: rgba(29, 36, 32, .92); color: #F4F1EA;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.fr-castrip-mark { width: 26px; height: 26px; border-radius: 8px; flex: none; }
.fr-castrip-k { font: 600 11px/1 var(--fr-body); letter-spacing: .08em; text-transform: uppercase; opacity: .7; flex: none; }
.fr-castrip-addr {
  flex: 1 1 200px; min-width: 0; font-size: 11.5px; line-height: 1.3; word-break: break-all;
  user-select: all; -webkit-user-select: all; color: #fff;
}
.fr-castrip-addr.is-blank { opacity: .65; font-style: italic; user-select: none; }
.fr-castrip-copy {
  flex: none; border: 0; border-radius: 999px; padding: 7px 14px; cursor: pointer;
  background: var(--fr-bloom); color: #1D2420; font: 700 12px/1 var(--fr-body);
}
.fr-castrip-copy[data-done="1"] { background: #9BD1B0; }
.fr-castrip-gm { flex: none; font-size: 11px; opacity: .7; text-decoration: underline; text-underline-offset: 2px; }

/* ---------- the letter (hero: a paragraph that tells the last fold) ---------- */
.fr-letter {
  max-width: 1160px; margin: 0 auto; padding: 18px 18px 6px;
  font: 400 17px/1.55 var(--fr-body); color: var(--fr-soft);
}
.fr-letter-big { display: block; font: 600 25px/1.18 var(--fr-display); color: var(--fr-ink); margin-bottom: 6px; letter-spacing: -.01em; }
.fr-letter b { color: var(--fr-ink); }
.fr-letter code { font-size: .85em; word-break: break-all; }

/* ---------- the deck of cards ---------- */
.fr-deck { max-width: 1160px; margin: 0 auto; padding: 8px 12px 20px; display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
.fr-card {
  background: var(--fr-card); border: 1px solid var(--fr-line); border-radius: var(--fr-r);
  padding: 16px; box-shadow: 0 1px 0 rgba(255, 255, 255, .7) inset, 0 12px 30px -18px rgba(29, 36, 32, .25);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); min-width: 0;
}
.fr-h { margin: 0 0 10px; font: 600 20px/1.2 var(--fr-display); }
.fr-tag { display: inline-block; font: 500 11px/1 var(--fr-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--fr-leaf); background: rgba(47, 107, 79, .1); padding: 6px 9px; border-radius: 999px; }
.fr-fine { font-size: 13px; color: var(--fr-soft); margin: 10px 0 0; }

/* the room */
.fr-roomcard { padding: 12px 12px 14px; }
.fr-roomcard-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.fr-state { font: 500 12px/1.2 var(--fr-mono); color: var(--fr-soft); text-align: right; }
.fr-state[data-s="full"] { color: #9A5F0E; }
.fr-ring { position: relative; width: 100%; max-width: 360px; margin: 2px auto 0; aspect-ratio: 1 / 1; }
.fr-ringsvg { width: 100%; height: 100%; display: block; overflow: visible; }
.fr-say { margin: 4px 0 0; text-align: center; font: 600 17px/1.35 var(--fr-display); }
.fr-say em { font-style: normal; color: var(--fr-leaf); }
.fr-pips { display: flex; justify-content: center; gap: 5px; margin-top: 8px; }
.fr-pips i { width: 18px; height: 6px; border-radius: 3px; background: rgba(29, 36, 32, .12); }
.fr-pips i.on { background: var(--fr-leaf); }

/* svg pieces */
.fr-table { fill: url(#frTableG); stroke: rgba(47, 107, 79, .25); stroke-width: 1.5; }
.fr-seat circle.fr-seatdisc { fill: #FFFDF8; stroke: rgba(29, 36, 32, .22); stroke-width: 2; transition: fill .4s, stroke .4s; }
.fr-seat text { font: 600 15px var(--fr-display); fill: var(--fr-soft); text-anchor: middle; dominant-baseline: central; }
.fr-seat .fr-seatwho { font: 400 9.5px var(--fr-mono); fill: var(--fr-soft); }
.fr-seat.is-taken circle.fr-seatdisc { fill: var(--fr-leaf); stroke: var(--fr-leaf); }
.fr-seat.is-taken text { fill: #fff; }
.fr-seat.is-mine circle.fr-seatdisc { stroke: var(--fr-bloom); stroke-width: 4; }
.fr-seat.is-next circle.fr-seatdisc { stroke: var(--fr-leaf); stroke-dasharray: 5 4; animation: fr-breathe 1.6s ease-in-out infinite; }
.fr-seat.is-next text { fill: var(--fr-leaf); }
.fr-seat.is-drawn circle.fr-seatdisc { fill: var(--fr-bloom); stroke: #B97B1F; stroke-width: 3; }
.fr-seat.is-drawn text { fill: #2B1D05; }
.fr-seat.is-folded circle.fr-seatdisc { fill: #E8E3D8; stroke: rgba(29, 36, 32, .15); }
.fr-seat.is-folded text { fill: #A7A196; }
.fr-halo { fill: none; stroke: var(--fr-bloom); stroke-width: 2; opacity: .6; animation: fr-halo 2.4s ease-out infinite; transform-box: fill-box; transform-origin: center; }
.fr-chip { fill: var(--fr-leaf-2); stroke: #fff; stroke-width: 1.5; }
.fr-centre-k { font: 500 10px var(--fr-mono); fill: var(--fr-soft); text-anchor: middle; letter-spacing: .1em; text-transform: uppercase; }
.fr-centre-v { font: 800 30px var(--fr-display); fill: var(--fr-ink); text-anchor: middle; }
.fr-centre-s { font: 400 11px var(--fr-body); fill: var(--fr-soft); text-anchor: middle; }
@keyframes fr-breathe { 0%, 100% { stroke-opacity: 1; } 50% { stroke-opacity: .35; } }
@keyframes fr-halo { 0% { transform: scale(1); opacity: .7; } 100% { transform: scale(1.6); opacity: 0; } }

/* take a seat */
.fr-sitcard-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.fr-sitcard-head .fr-h { margin: 0; }
.fr-plug { border: 1px solid var(--fr-line); background: #fff; border-radius: 999px; padding: 8px 12px; font: 500 13px var(--fr-body); cursor: pointer; }
.fr-plug[data-on="1"] { font-family: var(--fr-mono); font-size: 12px; }
.fr-qty { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 12px 0; }
.fr-qty-b { border: 1px solid var(--fr-line); background: rgba(255, 255, 255, .7); border-radius: 14px; padding: 12px 0; font: 600 14px var(--fr-body); cursor: pointer; }
.fr-qty-b[aria-pressed="true"] { background: var(--fr-ink); color: #F4F1EA; border-color: var(--fr-ink); }
.fr-sit { width: 100%; border: 0; border-radius: 16px; padding: 16px; background: var(--fr-leaf); color: #fff; font: 700 17px var(--fr-body); cursor: pointer; }
.fr-sit:disabled { opacity: .55; cursor: default; }
.fr-pull { margin-top: 10px; width: 100%; border: 2px solid var(--fr-bloom); background: #FFF6E6; border-radius: 14px; padding: 12px; font: 700 15px var(--fr-body); cursor: pointer; }

/* tape */
.fr-tape { list-style: none; margin: 0; padding: 0; max-height: 360px; overflow: auto; }
.fr-tape li { padding: 9px 0; border-top: 1px dashed var(--fr-line); font-size: 14px; display: flex; gap: 10px; align-items: baseline; }
.fr-tape li:first-child { border-top: 0; }
.fr-tape li time { font: 400 11px var(--fr-mono); color: var(--fr-soft); flex: none; width: 42px; }
.fr-tape li.is-new { animation: fr-print .7s ease-out; }
.fr-tape li.k-drawn { color: #7A4A06; font-weight: 600; }
.fr-tape-empty { color: var(--fr-soft); }
@keyframes fr-print { from { background: rgba(227, 165, 74, .3); } to { background: transparent; } }

/* house card (menu) */
.fr-menu { list-style: none; margin: 0; padding: 0; }
.fr-menu li { display: flex; align-items: baseline; gap: 6px; padding: 6px 0; font-size: 15px; }
.fr-menu li i { flex: 1; border-bottom: 2px dotted rgba(29, 36, 32, .25); transform: translateY(-4px); min-width: 12px; }
.fr-menu li b { font-family: var(--fr-display); font-weight: 600; text-align: right; }
.fr-worked { margin-top: 12px; padding: 12px; border-radius: 16px; background: rgba(47, 107, 79, .07); }
.fr-worked p { margin: 8px 0 0; font-size: 14.5px; }

/* past rooms */
.fr-proof { font-size: 14px; margin: 0 0 8px; word-break: break-word; }
.fr-proof code { font-size: 11.5px; word-break: break-all; }
.fr-ok { color: var(--fr-leaf); font-weight: 700; }
.fr-past { list-style: none; margin: 0; padding: 0; }
.fr-past li { padding: 8px 0; border-top: 1px solid var(--fr-line); font-size: 14px; }
.fr-past li small { display: block; color: var(--fr-soft); font: 400 11px/1.4 var(--fr-mono); word-break: break-all; }
.fr-who { margin-top: 10px; font-size: 13px; word-break: break-all; }

/* footer */
.fr-foot { max-width: 1160px; margin: 0 auto; padding: 14px 18px 40px; font-size: 13px; color: var(--fr-soft); }
.fr-foot div { margin: 4px 0; }
.fr-foot div span { display: inline-block; min-width: 110px; }
.fr-foot code { word-break: break-all; color: var(--fr-ink); font-size: 12px; }
.fr-foot-links { display: flex; flex-wrap: wrap; gap: 14px; margin: 10px 0; }
.fr-foot-links a.is-off { display: none; }

.fr-toasts { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 40; display: grid; gap: 6px; width: min(92vw, 420px); pointer-events: none; }
.fr-toasts div { background: var(--fr-ink); color: #F4F1EA; border-radius: 12px; padding: 10px 14px; font-size: 14px; }

/* ---------- tablet: wider measure, bigger room ---------- */
@media (min-width: 700px) {
  .fr-castrip { padding: 10px 22px; gap: 12px; }
  .fr-castrip-addr { font-size: 13px; flex: 0 1 auto; }
  .fr-letter { padding: 26px 26px 8px; font-size: 18px; max-width: 760px; }
  .fr-letter-big { font-size: 32px; }
  .fr-deck { max-width: 760px; padding: 10px 22px 24px; gap: 16px; }
  .fr-ring { max-width: 440px; }
  .fr-say { font-size: 20px; }
}

/* ---------- desktop: the page recomposes — room + seat card left, tape / card / past rooms right ---------- */
@media (min-width: 1000px) {
  .fr-letter { max-width: 1160px; padding: 30px 32px 10px; columns: 2; column-gap: 40px; font-size: 18px; }
  .fr-letter-big { column-span: all; font-size: 38px; max-width: 900px; margin-bottom: 12px; }
  .fr-deck {
    max-width: 1160px; padding: 14px 32px 30px; gap: 18px;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    grid-template-areas: "room tape" "sit menu" "sit past";
    align-items: start;
  }
  .fr-roomcard { grid-area: room; padding: 20px; }
  .fr-sitcard { grid-area: sit; }
  .fr-tapecard { grid-area: tape; }
  .fr-menucard { grid-area: menu; }
  .fr-pastcard { grid-area: past; }
  .fr-ring { max-width: 520px; }
  .fr-say { font-size: 23px; }
  .fr-tape { max-height: 470px; }
  .fr-foot { padding: 18px 32px 50px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 30px; }
  .fr-foot-links, .fr-foot p { grid-column: 1 / -1; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }