:root {
  --bg: #f3eee6;
  --card: #fffdf8;
  --ink: #1a140f;
  --muted: #5e564c;
  --body: #3f3832;
  --line: #e6d9c8;
  --accent: #c2410c;
  --accent-ink: #9a3412;
  --red: #d0122d;
  --good: #166534;
  --good-bg: #f3faf5;
  --warn: #92400e;
  --warn-bg: #fffbeb;
  --miss: #9f1239;
  --shadow: 0 1px 2px rgba(26, 20, 15, 0.04), 0 10px 28px rgba(26, 20, 15, 0.05);
  --sans: ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light;
}

* { box-sizing: border-box; }
html {
  background: var(--bg);
  color-scheme: light;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  background:
    radial-gradient(900px 380px at 8% -12%, rgba(194, 65, 12, 0.09), transparent 55%),
    var(--bg);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}
body::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--red), var(--accent) 42%, #e8a04a);
}
body, button, input { font: inherit; }
button, input { color: inherit; }
a { color: inherit; }
a, button {
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(194, 65, 12, 0.18);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  scroll-margin-top: 84px;
  scroll-margin-bottom: 16px;
}
::selection { background: #ffd7b8; color: var(--ink); }
h1, h2, h3 { text-wrap: balance; }
p, li { text-wrap: pretty; }

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 20;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease;
}
.skip-link:focus { transform: none; }

.jump { position: absolute; top: 0; width: 1px; height: 1px; overflow: hidden; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

header.top { padding: 28px 0 8px; }
.kicker {
  margin: 0 0 10px;
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(36px, 4.6vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.lede {
  margin: 12px 0 0;
  max-width: 62ch;
  color: #4a433c;
  font-size: 17px;
  line-height: 1.5;
}

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 10px 0;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  width: max-content;
  max-width: 100%;
  margin: 0;
  padding: 4px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.nav::-webkit-scrollbar { display: none; }
.nav a {
  display: inline-flex;
  align-items: center;
  flex: none;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 160ms ease, color 160ms ease;
}
.nav a:hover { background: #f6efe6; }
.nav a:focus-visible { outline-offset: 1px; }
.nav a[aria-current="true"],
body:not(:has(#ladder:target, #probes:target, #clones:target)) .nav a[href="#findings"],
body:has(#ladder:target) .nav a[href="#ladder"],
body:has(#probes:target) .nav a[href="#probes"],
body:has(#clones:target) .nav a[href="#clones"] {
  background: var(--ink);
  color: #f7f1e8;
  font-weight: 700;
}
.nav a[aria-current="true"]:hover,
body:not(:has(#ladder:target, #probes:target, #clones:target)) .nav a[href="#findings"]:hover,
body:has(#ladder:target) .nav a[href="#ladder"]:hover,
body:has(#probes:target) .nav a[href="#probes"]:hover,
body:has(#clones:target) .nav a[href="#clones"]:hover {
  background: #2a221c;
}

main { padding: 8px 0 28px; }
main:focus-visible { outline-offset: 4px; }
.panel { display: none; padding-top: 12px; }
#panel-findings { display: block; }
body:has(#ladder:target) #panel-findings,
body:has(#probes:target) #panel-findings,
body:has(#clones:target) #panel-findings { display: none; }
body:has(#ladder:target) #panel-ladder,
body:has(#probes:target) #panel-probes,
body:has(#clones:target) #panel-clones { display: block; }

h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.note { margin: 0 0 16px; max-width: 72ch; color: var(--muted); font-size: 15px; line-height: 1.5; }

.tickets, .doors, .cols, .clone-grid { display: grid; gap: 12px; }
.tickets { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.doors { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 12px; }
.cols { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.clone-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.ticket, .door, .col, .clone-card, .result, #cart-form {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.tickets .ticket, .rung {
  position: relative;
  padding: 16px 16px 14px 20px;
  overflow: hidden;
}
.tickets .ticket::before, .rung::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--red);
}
.ticket p { margin: 0; }
.ticket .off {
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.ticket .floor { margin-top: 6px; color: var(--muted); font-size: 14px; }
.ticket .badge {
  position: absolute;
  top: 14px;
  right: 14px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  max-width: 46%;
  text-align: right;
}
.ticket .pct {
  color: var(--accent-ink);
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.ticket .badge-label { color: var(--muted); font-size: 12px; line-height: 1.2; }
.ticket .code {
  display: inline-flex;
  width: fit-content;
  margin-top: 12px;
  padding: 4px 8px;
  border: 1px dashed #d9c8b4;
  border-radius: 8px;
  background: #f6efe6;
  color: var(--body);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.shopper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: 12px;
  padding: 14px 18px;
  border-radius: 16px;
  background: var(--ink);
  color: #f7f1e8;
}
.shopper p { margin: 0; font-size: 14px; font-weight: 600; }
.shopper ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.shopper li { font-size: 14px; font-variant-numeric: tabular-nums; }
.shopper b { color: #fff; font-size: 18px; }
.shopper .was {
  color: #d4c4b0;
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.door, .col, .clone-card { padding: 16px; }
.door b, .clone-card b { display: block; margin: 0 0 6px; font-size: 16px; line-height: 1.3; }
.door p, .clone-card p { margin: 0; color: var(--body); font-size: 14px; line-height: 1.45; overflow-wrap: break-word; }
.door .tag {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.door, .clone-card {
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}
.clone-card:hover, .door:hover { border-color: #e0b08a; }
.clone-card:hover { transform: translateY(-2px); }

.missing { margin-top: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chips span {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.callout { padding: 16px 16px 8px; border-radius: 16px; border: 1px solid var(--line); }
.callout.steal { background: var(--good-bg); border-color: #b7e4c7; }
.callout.skip { background: var(--warn-bg); border-color: #f3d19c; }
.callout h3 { margin: 0 0 8px; font-size: 16px; }
.callout.steal h3 { color: var(--good); }
.callout.skip h3 { color: var(--warn); }
.callout ul { margin: 0; padding-left: 18px; }
.callout li { margin: 0 0 8px; color: var(--body); line-height: 1.45; }
.callout.steal li::marker { color: var(--good); }
.callout.skip li::marker { color: var(--warn); }

.ladder-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 16px; align-items: start; }
#cart-form { padding: 16px; }
.rungs { display: flex; flex-direction: column; gap: 12px; }
.rung .off { font-size: 28px; }
.rung .code { margin-top: 0; margin-bottom: 6px; }
.rung.is-hit { background: var(--good-bg); border-color: #b7e4c7; }
.rung.is-hit::before { background: var(--good); }
.rung.is-short { background: #faf7f2; }
.rung.is-short .off, .rung.is-short .code { color: #6b6258; }
.rung.is-less::before { background: #e0d4c4; }
.rung .apply {
  display: none;
  margin-left: 8px;
  color: var(--good);
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.rung.is-hit .apply { display: inline; }

label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.row { display: flex; gap: 8px; }
.row:focus-within input { border-color: var(--accent); }
input[type="text"] {
  flex: 1;
  min-width: 0;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #e0d4c4;
  border-radius: 10px;
  background: #fff;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}
input:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.28);
}
input[aria-invalid="true"] {
  border-color: var(--miss);
  box-shadow: 0 0 0 3px rgba(159, 18, 57, 0.18);
}
button.primary, button.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}
button.primary {
  padding: 0 16px;
  border: 1px solid #9a3412;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}
button.primary:hover { background: #9a3412; }
button.primary:active { background: #7c2d12; }
button.ghost {
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--card);
}
button.ghost:hover { border-color: var(--accent); background: #fff7f0; }
button.ghost[aria-pressed="true"] {
  border-color: var(--accent);
  background: #fff1e8;
  color: var(--accent-ink);
  font-weight: 700;
}
.samples { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.result { margin-top: 12px; min-height: 96px; padding: 14px 16px; box-shadow: none; }
.result[data-state="empty"] { border-style: dashed; background: transparent; }
.result[data-reason="below"] {
  border-style: solid;
  border-color: #f3d19c;
  background: var(--warn-bg);
}
.result[data-state="error"] { border-color: #fecdd3; background: #fff1f2; }
.result[data-state="ok"] { border-color: #b7e4c7; background: var(--good-bg); }
#cart-msg { margin: 0; color: var(--muted); }
.result[data-reason="below"] #cart-msg { color: var(--warn); }
.result[data-state="error"] #cart-msg { color: var(--miss); }
#cart-ok { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; margin: 0; }
#cart-ok[hidden] { display: none; }
#cart-ok div { min-width: 0; }
#cart-ok dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
#cart-ok dd { margin: 2px 0 0; font-size: 20px; font-variant-numeric: tabular-nums; }
#r-pay { font-family: var(--serif); font-size: 32px; font-weight: 700; letter-spacing: -0.03em; }
#r-floor-line { display: none; margin: 10px 0 0; color: var(--muted); font-size: 13px; line-height: 1.45; }
.result[data-state="ok"] #r-floor-line { display: block; }

.col h3 { margin: 0 0 8px; font-size: 15px; }
.col ul { margin: 0; padding-left: 18px; }
.col li { margin: 8px 0; color: var(--body); font-size: 14px; line-height: 1.45; }
.col.real { border-top: 3px solid var(--good); }
.col.wall { border-top: 3px solid #d97706; }
.col.miss { border-top: 3px solid #be123c; }
.col.real h3 { color: var(--good); }
.col.wall h3 { color: var(--warn); }
.col.miss h3 { color: var(--miss); }

.clone-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 148px;
  text-decoration: none;
}
.clone-card span { margin-top: auto; color: var(--accent-ink); font-size: 14px; font-weight: 700; }

.foot { padding: 8px 0 calc(28px + env(safe-area-inset-bottom)); color: var(--muted); font-size: 13px; }
.foot p { margin: 0; padding-top: 16px; border-top: 1px solid var(--line); }

@media (max-width: 900px) {
  .doors, .clone-grid, .ladder-layout, .cols { grid-template-columns: 1fr 1fr; }
  .ladder-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .wrap { width: min(1120px, calc(100% - 28px)); }
  header.top { padding-top: 20px; }
  .tickets, .doors, .clone-grid, .split, .cols, #cart-ok { grid-template-columns: 1fr; }
  .ticket .off { font-size: 36px; }
  .shopper { align-items: flex-start; }
  .shopper ul { flex-direction: column; gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .clone-card:hover { transform: none; }
}