:root {
  --paper: #f3efe6;
  --ink: #14181f;
  --muted: #5a564c;
  --faint: #8a8478;
  --rule: #d4cbb8;
  --card: #fffdf8;
  --accent: #b45309;
  --accent-2: #9a4208;
  --header: #14181f;
  --header-ink: #f6f0e4;
  --focus: #1c4d6e;
  --ok: #0b6b4f;
  --warn: #9b1d1d;
  --result: #eef8f3;
  --result-line: #b7e0c8;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 0 rgba(20, 24, 31, 0.04), 0 16px 36px rgba(20, 24, 31, 0.08);
  --sans: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;
  --max: 68rem;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.06rem;
  line-height: 1.65;
  background:
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(180, 83, 9, 0.08), transparent 50%),
    var(--paper);
}

a { color: var(--accent); }
a:hover { color: var(--accent-2); }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 20;
  background: var(--accent);
  color: #fff;
  padding: 0.4rem 0.75rem;
  text-decoration: none;
}
.skip:focus { top: 0.75rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 8;
  background: var(--header);
  color: var(--header-ink);
  box-shadow: inset 0 -4px 0 var(--accent);
}

.header-inner,
.footer-inner,
.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0 1.1rem;
}

.wordmark {
  display: block;
  padding-left: 2.85rem;
  min-height: 2.25rem;
  text-decoration: none;
  color: var(--header-ink);
  font-family: var(--serif);
  font-size: 1.38rem;
  font-weight: 700;
  line-height: 1.12;
  background: url("../favicon.svg") left center / 2.2rem 2.2rem no-repeat;
}
.wordmark span {
  display: block;
  margin-top: 0.16rem;
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #d8c7a6;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.3rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  color: var(--header-ink);
  text-decoration: none;
  font-weight: 650;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
}
.site-nav a:hover { background: rgba(246, 240, 228, 0.12); color: #fff; }
.site-nav a[aria-current="page"] {
  background: var(--accent);
  color: #fff;
}

.page { padding: 2.1rem 0 3.4rem; }

h1, h2, h3 {
  font-family: var(--serif);
  line-height: 1.18;
  font-weight: 700;
}
h1 {
  font-size: clamp(2rem, 4.4vw, 2.9rem);
  margin: 0 0 0.8rem;
  max-width: 20ch;
}
h2 { font-size: 1.5rem; margin: 2.2rem 0 0.65rem; }
h3 { font-size: 1.15rem; margin: 1.3rem 0 0.4rem; }

.kicker {
  margin: 0 0 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.lede {
  max-width: 44rem;
  font-size: 1.12rem;
  margin: 0 0 1.6rem;
}

.assumption,
.empty,
.note,
.limit {
  background: #efe6d2;
  border: 1px solid var(--rule);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
}
.empty { color: var(--muted); }
.limit { color: var(--warn); background: #f8e4dc; }

.studio {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
  gap: 1.4rem;
  align-items: start;
}

.panel,
.card,
.stub {
  background: var(--card);
  border: 1px solid #cbb892;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel { padding: 1.2rem 1.25rem 1.4rem; }
.panel h2 { margin-top: 0; }

.stub {
  padding: 1.2rem 1.25rem 1.4rem;
  background: var(--result);
  border-color: var(--result-line);
}
.stub h2 { margin-top: 0; color: var(--ok); }

label,
legend {
  display: block;
  font-weight: 700;
  margin: 0.9rem 0 0.3rem;
}
label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 650;
}
input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
}
fieldset {
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 0.4rem 1rem 1rem;
  margin: 0 0 1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.75rem 1rem;
}

.hint {
  margin: 0.3rem 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

input[type="text"],
input[type="number"],
select,
textarea {
  width: 100%;
  border: 1.5px solid #b79d74;
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 0.7rem 0.8rem;
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(180, 83, 9, 0.16);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

button,
.btn {
  appearance: none;
  border: 1px solid var(--header);
  background: var(--accent);
  color: #fff8ee;
  font: inherit;
  font-weight: 700;
  padding: 0.58rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
}
button.secondary,
.btn.secondary {
  background: #fff;
  color: var(--ink);
  border-color: #8a7350;
}
button:hover, .btn:hover { background: #8a3f07; color: #fff; }
button.secondary:hover, .btn.secondary:hover {
  background: #efe6d2;
  color: var(--ink);
}

.figures {
  display: grid;
  gap: 0.75rem;
  margin: 0;
}
.figures > div {
  display: grid;
  gap: 0.15rem;
}
.figures dt {
  font-size: 0.86rem;
  color: var(--muted);
}
.figures dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 700;
}
.figures .hero dd {
  font-size: 1.85rem;
  color: var(--ok);
}

.steps {
  margin: 1rem 0 0;
  padding: 0 0 0 1.2rem;
  color: var(--ink);
}
.steps li { margin: 0.45rem 0; }

.summary {
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  background: #fffdf8;
  border: 1px dashed #8fbfa3;
  border-radius: var(--radius-sm);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
}
.grid a.card {
  display: block;
  position: relative;
  color: inherit;
  text-decoration: none;
  padding: 1.15rem 1.2rem 2.4rem;
  border-top: 4px solid var(--accent);
}
.grid a.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(20, 24, 31, 0.12);
}
.grid a.card h2,
.grid a.card h3 { margin: 0 0 0.4rem; font-size: 1.22rem; }
.grid a.card::after {
  content: "Open";
  position: absolute;
  right: 1.15rem;
  bottom: 0.9rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.faq details {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  margin: 0.5rem 0;
}
.faq summary { cursor: pointer; font-weight: 700; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
th, td {
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.95rem;
}
th { font-size: 0.8rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }

.px-readout {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0.7rem 0 0;
}

.compare,
.continue {
  margin-top: 2rem;
  padding: 1.2rem 1.25rem 1.4rem;
  background: var(--card);
  border: 1px solid #cbb892;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.compare h2,
.continue h2 { margin-top: 0; }

.continue-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.85rem 0 0.2rem;
}
.continue-links a {
  display: inline-flex;
  align-items: center;
  padding: 0.42rem 0.85rem;
  background: #fff;
  border: 1px solid #cbb892;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 650;
  color: var(--ink);
}
.continue-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.recent-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.recent-list button { max-width: 100%; text-align: left; }

.site-footer {
  background: var(--header);
  color: #d8c7a6;
  padding: 1.8rem 0 2.3rem;
  font-size: 0.95rem;
  box-shadow: inset 0 4px 0 var(--accent);
}
.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  list-style: none;
  margin: 0 0 0.8rem;
  padding: 0;
}
.site-footer a { color: var(--header-ink); }

@media (min-width: 861px) {
  .studio .stub { position: sticky; top: 5.4rem; }
}

@media (max-width: 860px) {
  .studio { grid-template-columns: 1fr; }
  h1 { max-width: none; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grid a.card { transition: none; }
}