:root {
  --cream: #f8f0da;
  --cream-2: #fff8e6;
  --ink: #1a120c;
  --ink-soft: #3a2a1c;
  --line: #23160e;
  --barn: #9b2d1f;
  --barn-dark: #6e1c14;
  --amber: #f6b73c;
  --amber-2: #e0a12a;
  --grass-a: #4c9a3c;
  --grass-b: #3d7f31;
  --good: #215c28;
  --bad: #9b2d1f;
  --bad-bg: #f3d2c6;
  --shadow: 4px 4px 0 #1a120c;
  --shadow-sm: 3px 3px 0 #1a120c;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Courier New", ui-monospace, monospace;
  color: var(--ink);
  letter-spacing: normal;
  background-color: var(--grass-b);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='28' height='28' shape-rendering='crispEdges'><rect width='28' height='28' fill='%234c9a3c'/><rect width='14' height='14' fill='%233d7f31'/><rect x='14' y='14' width='14' height='14' fill='%233d7f31'/></svg>");
  background-size: 28px 28px;
  image-rendering: pixelated;
  line-height: 1.55;
  min-height: 100vh;
}

img, svg, video { max-width: 100%; display: block; }
button, input, textarea { font: inherit; letter-spacing: normal; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.wrap {
  width: min(980px, calc(100% - 24px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--cream);
  border-bottom: 4px solid var(--line);
  box-shadow: 0 4px 0 var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-mark {
  width: 40px;
  height: 40px;
  background: var(--barn);
  border: 3px solid var(--line);
  box-shadow: var(--shadow-sm);
  position: relative;
  flex: 0 0 40px;
}
.brand-mark::after {
  content: "";
  position: absolute;
  left: 8px; top: 10px;
  width: 18px; height: 14px;
  background: var(--amber);
  box-shadow: 16px -8px 0 var(--cream-2);
}
.brand-name { font-size: 22px; font-weight: 700; line-height: 1.1; }
.brand-sub { font-size: 12px; color: var(--ink-soft); white-space: nowrap; }
.header-count {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  text-align: right;
}
.count-label {
  font-size: 12px;
  background: var(--barn);
  color: var(--cream-2);
  border: 3px solid var(--line);
  padding: 2px 8px;
  white-space: nowrap;
}
.count-digits { display: flex; gap: 6px; }
.digit {
  min-width: 46px;
  background: var(--cream-2);
  border: 3px solid var(--line);
  box-shadow: 2px 2px 0 var(--line);
  padding: 2px 6px;
  text-align: center;
}
.digit b { display: block; font-size: 16px; line-height: 1.2; }
.digit span { font-size: 10px; color: var(--ink-soft); }

.ref-banner {
  display: none;
  border: 4px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--cream-2);
  padding: 12px 14px;
  margin: 16px auto 0;
}
.ref-banner.show { display: block; }
.ref-banner.warn {
  background: var(--bad-bg);
  border-color: var(--bad);
}
.ref-banner p { margin: 0; }
.ref-kicker { font-size: 12px; color: var(--ink-soft); margin-bottom: 4px !important; }
.mono { word-break: break-all; }

.hero {
  margin: 22px auto 28px;
  background: var(--cream);
  border: 4px solid var(--line);
  box-shadow: 6px 6px 0 var(--line);
}
.hero-art {
  border-bottom: 4px solid var(--line);
  background: #7ec8e3;
  position: relative;
}
.hero-art img {
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}
.hero-caption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  background: var(--cream);
  border: 3px solid var(--line);
  padding: 4px 8px;
  font-size: 12px;
  box-shadow: var(--shadow-sm);
}
.hero-body { padding: 22px 22px 26px; }
.kicker {
  display: inline-block;
  background: var(--barn);
  color: var(--cream-2);
  border: 3px solid var(--line);
  padding: 2px 8px;
  font-size: 12px;
  margin-bottom: 10px;
}
h1 {
  font-size: clamp(34px, 8vw, 64px);
  line-height: 0.95;
  margin: 0 0 10px;
  letter-spacing: normal;
}
.subtitle {
  font-size: clamp(18px, 3vw, 24px);
  margin: 0 0 18px;
}
.hero-lead { margin: 0 0 20px; max-width: 46em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--line);
  box-shadow: var(--shadow-sm);
  background: var(--cream-2);
  color: var(--ink);
  padding: 10px 16px;
  text-decoration: none;
  min-height: 44px;
}
.strip .btn {
  color: var(--ink);
  background: var(--cream-2);
}
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--line); }
.btn-amber { background: var(--amber); }
.btn-barn { background: var(--barn); color: var(--cream-2); }
.btn-wide { width: 100%; }
.btn[disabled] { cursor: not-allowed; opacity: 0.7; }

.section { margin: 0 auto 28px; scroll-margin-top: 86px; }
.panel {
  background: var(--cream);
  border: 4px solid var(--line);
  box-shadow: var(--shadow);
}
.strip {
  background: var(--barn);
  color: var(--cream-2);
  border-bottom: 4px solid var(--line);
  padding: 10px 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}
.strip h2 { margin: 0; font-size: 18px; letter-spacing: normal; }
.strip span { font-size: 12px; opacity: 0.92; }
.panel-body { padding: 16px; background: var(--cream-2); }
.panel-body > p:first-child { margin-top: 0; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.card {
  background: var(--cream);
  border: 3px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 16px; }
label { display: block; font-size: 13px; margin: 10px 0 6px; }
.field {
  width: 100%;
  border: 3px solid var(--line);
  background: #fffdf6;
  padding: 10px 12px;
  min-height: 44px;
  outline: none;
}
.field:focus { background: #fff; box-shadow: inset 0 0 0 2px var(--amber); }
.result {
  margin-top: 12px;
  border: 3px solid var(--line);
  background: var(--cream-2);
  padding: 10px;
  display: none;
}
.result.show { display: block; }
.result .row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}
.result code {
  flex: 1;
  background: #fffdf6;
  border: 2px solid var(--line);
  padding: 8px;
  word-break: break-all;
  font-size: 13px;
}
.msg { min-height: 1.4em; margin: 8px 0 0; font-size: 13px; }
.msg.err { color: var(--bad); font-weight: 700; }
.msg.ok { color: var(--good); }

.rule-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.rule {
  background: var(--cream);
  border: 3px solid var(--line);
  padding: 14px;
}
.rule h3 { margin: 0 0 8px; font-size: 16px; }
.rule ul { margin: 8px 0 0; padding-left: 1.2em; }
.rule li { margin: 4px 0; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--cream);
  margin: 10px 0;
  font-size: 13px;
}
th, td {
  border: 2px solid var(--line);
  padding: 7px 8px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--barn); color: var(--cream-2); }

.tpl {
  background: #fffdf6;
  border: 3px solid var(--line);
  padding: 12px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 13px;
  margin: 0 0 10px;
}
.note { font-size: 13px; color: var(--ink-soft); }

.tools-list { display: grid; gap: 12px; }
.tool-head { display: flex; justify-content: space-between; gap: 8px; align-items: center; flex-wrap: wrap; }

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(26, 18, 12, 0.55);
  padding: 24px 12px;
  overflow: auto;
}
.modal.show { display: block; }
.modal-card {
  width: min(520px, 100%);
  margin: 8vh auto;
  background: var(--cream);
  border: 4px solid var(--line);
  box-shadow: 8px 8px 0 var(--line);
}
.modal-body { padding: 16px; background: var(--cream-2); }
.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 12px 0;
  background: var(--cream);
  border: 3px solid var(--line);
  padding: 10px;
}
.check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--barn); }
.timer {
  font-size: 42px;
  line-height: 1;
  text-align: center;
  border: 3px solid var(--line);
  background: var(--cream);
  padding: 12px;
  margin: 12px 0;
  display: none;
}
.timer.show { display: block; }
.modal-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.backup {
  margin-top: 16px;
  border: 3px solid var(--line);
  background: var(--cream);
  box-shadow: var(--shadow-sm);
}
.backup summary {
  cursor: pointer;
  padding: 12px 14px;
  font-weight: 700;
  list-style: none;
}
.backup summary::-webkit-details-marker { display: none; }
.backup summary::before {
  content: "+ ";
}
.backup[open] summary::before {
  content: "- ";
}
.backup .card {
  border: none;
  box-shadow: none;
  padding-top: 0;
}
.inline-ex {
  background: #fffdf6;
  border: 2px solid var(--line);
  padding: 1px 6px;
  word-break: break-all;
}

.site-footer {
  background: var(--cream);
  border-top: 4px solid var(--line);
  text-align: center;
  padding: 18px 12px 28px;
  margin-top: 12px;
}
.site-footer p { margin: 0; }

@media (max-width: 760px) {
  .header-inner { align-items: flex-start; }
  .grid-2, .rule-grid { grid-template-columns: 1fr; }
  .digit { min-width: 40px; }
  h1 { font-size: 36px; }
  .hero-body, .panel-body { padding: 14px; }
  .result .row { flex-direction: column; align-items: stretch; }
  .brand-name { font-size: 18px; }
  .brand-sub { white-space: nowrap; font-size: 11px; }
}