/* TDCC design system: tokens, type, chrome (nav + footer), and the building
   blocks every page uses. index.html keeps its own inline copy of the base
   rules; everything else links this file. Page chrome markup is kept in sync
   by scripts/chrome.py. */
:root {
  --bg: #ffffff;
  --bg-2: #f7f6f3;
  --panel: #faf9f6;
  --line: rgba(20, 18, 14, .09);
  --line-2: rgba(20, 18, 14, .16);
  --text: #15130f;
  --body: #4b4740;
  --muted: #8a857c;
  --sand: #9a7a45;
  --cream: #15130f;
  --ink: #ffffff;
  --ok: #3d7a2a;
  --warn: #b0661e;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI Variable Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 48px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 400; }
::selection { background: var(--sand); color: var(--ink); }
:focus-visible { outline: 2px solid var(--sand); outline-offset: 3px; }
.skip-link { position: absolute; left: -9999px; top: 12px; z-index: 200; padding: 10px 14px; background: var(--cream); color: var(--ink); }
.skip-link:focus { left: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.eyebrow { margin: 0 0 18px; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; }
.mono { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.display { font-family: var(--serif); font-size: clamp(42px, 6.4vw, 92px); line-height: 1; letter-spacing: -.025em; }
.h2 { font-family: var(--serif); font-size: clamp(32px, 4.2vw, 56px); line-height: 1.06; letter-spacing: -.02em; max-width: 20ch; }
.lede { max-width: 60ch; color: var(--body); font-size: clamp(17px, 1.4vw, 19px); line-height: 1.6; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 46px; padding: 0 20px; border: 1px solid var(--line-2); background: transparent; color: var(--text); font-family: var(--mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; cursor: pointer; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.btn:hover { border-color: var(--sand); color: var(--sand); }
.btn.solid { background: var(--cream); border-color: var(--cream); color: var(--ink); }
.btn.solid:hover { background: var(--sand); border-color: var(--sand); color: var(--ink); }
.btn.sm { min-height: 36px; padding: 0 12px; font-size: 11px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.link { display: inline-flex; gap: 8px; font-family: var(--mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--sand); }
.link:hover { color: var(--text); }
.tag { display: inline-block; padding: 1px 6px; border: 1px solid var(--line-2); color: var(--muted); font-family: var(--mono); font-size: 9.5px; letter-spacing: .12em; text-transform: uppercase; vertical-align: 2px; }
.tag.ok { border-color: rgba(185, 217, 154, .4); color: var(--ok); }
.tag.warn { border-color: rgba(227, 179, 122, .45); color: var(--warn); }

/* nav */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid transparent; transition: background .25s ease, border-color .25s ease; }
.nav.scrolled { background: rgba(255, 255, 255, .9); border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--cream); }
.brand svg { flex: none; width: 42px; height: 28px; color: var(--sand); }
.brand-name { font-family: var(--serif); font-size: 21px; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a { white-space: nowrap; padding: 8px 9px; color: var(--body); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a[aria-current="page"] { box-shadow: inset 0 -1px 0 var(--sand); }
.nav-links .btn { margin-left: 8px; color: var(--ink); }
.menu-btn { display: none; width: 42px; height: 42px; border: 1px solid var(--line-2); background: transparent; color: var(--text); cursor: pointer; }
.menu-btn span { display: block; width: 16px; height: 1px; margin: 4px auto; background: currentColor; }

/* panels */
.panel { border: 1px solid var(--line); background: var(--panel); overflow: hidden; }
.fig { display: flex; justify-content: space-between; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; }
.fig b { color: var(--sand); font-weight: 500; }
.code { margin: 0; padding: 20px; overflow-x: auto; font-family: var(--mono); font-size: 12.5px; line-height: 1.75; color: var(--body); white-space: pre; }
.code .c { color: #6f685d; }
.code .k { color: var(--sand); }
.code .s { color: #4f7a35; }

/* faq */
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; gap: 24px; padding: 20px 0; cursor: pointer; list-style: none; font-size: 17px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); color: var(--sand); transition: transform .2s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { padding: 0 0 22px; max-width: 64ch; color: var(--body); }

/* footer */
footer { padding: 72px 0 32px; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
.foot-grid h4 { margin: 0 0 14px; color: var(--muted); font-family: var(--mono); font-size: 10.5px; font-weight: 400; letter-spacing: .14em; text-transform: uppercase; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.foot-grid a { color: var(--body); font-size: 14.5px; }
.foot-grid a:hover { color: var(--sand); }
.foot-grid .about { color: var(--muted); font-size: 14px; max-width: 34ch; margin-top: 18px; }
.wordmark { margin-top: 72px; font-family: var(--serif); font-size: clamp(34px, 7.6vw, 108px); line-height: .95; letter-spacing: -.035em; color: transparent; -webkit-text-stroke: 1px rgba(154, 122, 69, .38); white-space: nowrap; overflow: hidden; user-select: none; }
.legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 28px; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.legal a:hover { color: var(--sand); }
@media (max-width: 860px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid > div:first-child { grid-column: 1 / -1; }
}
/* legacy compact footer (kept for pages not yet migrated) */
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; align-items: flex-start; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.foot-links a { color: var(--body); font-size: 14px; }
.foot-links a:hover { color: var(--sand); }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .1, 1); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}
@media (max-width: 1080px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 20px; background: rgba(255, 255, 255, .97); border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 12px; }
  .nav-links a[aria-current="page"] { box-shadow: none; color: var(--sand); }
  .nav-links .btn { margin: 14px 0 0; }
  .menu-btn { display: block; }
}

/* forms and dialogs shared by marketplace and account pages */
.inp { width: 100%; height: 42px; padding: 0 12px; border: 1px solid var(--line-2); background: var(--bg); color: var(--text); font-family: var(--mono); font-size: 13px; border-radius: 0; }
textarea.inp { height: auto; min-height: 84px; padding: 10px 12px; resize: vertical; line-height: 1.5; }
select.inp option { background: var(--bg-2); }
.inp:focus { outline: 0; border-color: var(--sand); }
.inp[aria-invalid="true"] { border-color: var(--warn); }
.fl { display: grid; gap: 8px; color: var(--muted); font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; }
.fl small { color: var(--muted); font-family: var(--sans); font-size: 12.5px; letter-spacing: 0; text-transform: none; }
.check { display: flex; gap: 10px; align-items: flex-start; color: var(--body); font-size: 13.5px; }
.check input { margin-top: 3px; accent-color: var(--sand); }
.check a { color: var(--sand); }
.form-err { display: none; padding: 10px 12px; border: 1px solid rgba(227, 179, 122, .45); background: rgba(227, 179, 122, .06); color: var(--warn); font-size: 13.5px; }
.form-err.show { display: block; }
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 300; max-width: calc(100vw - 32px); transform: translate(-50%, 20px); padding: 12px 16px; background: var(--cream); color: var(--ink); font-family: var(--mono); font-size: 12px; opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.bad { background: var(--warn); }

.modal { position: fixed; inset: 0; z-index: 250; display: none; align-items: center; justify-content: center; padding: 16px; background: rgba(20, 18, 14, .38); }
.modal.open { display: flex; }
.modal-box { width: 100%; max-width: 440px; max-height: calc(100vh - 32px); overflow-y: auto; border: 1px solid var(--line-2); background: var(--bg-2); }
.modal-head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; padding: 22px 24px 0; }
.modal-head h2 { font-family: var(--serif); font-size: 28px; line-height: 1.1; }
.modal-head p { margin-top: 6px; color: var(--muted); font-size: 13.5px; }
.modal-x { width: 36px; height: 36px; flex: none; border: 1px solid var(--line-2); background: transparent; color: var(--text); font-size: 18px; cursor: pointer; }
.modal-body { display: grid; gap: 14px; padding: 20px 24px 24px; }
.tabs { display: flex; border: 1px solid var(--line-2); }
.tabs button { flex: 1; border: 0; background: transparent; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; padding: 11px 12px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--cream); color: var(--ink); }
.nav-links a.acct { color: var(--sand); }
[hidden] { display: none !important; }


/* ---------- page building blocks ---------- */

/* Sections and rhythm */
.section { padding: clamp(72px, 9vw, 128px) 0; border-top: 1px solid var(--line); }
.section.flush { border-top: 0; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px 48px; align-items: end; margin-bottom: clamp(32px, 4vw, 56px); }
.section-head .lede { justify-self: end; }
@media (max-width: 860px) { .section-head { grid-template-columns: 1fr; } .section-head .lede { justify-self: start; } }

/* Sub-page header */
.page-head { position: relative; padding: clamp(64px, 9vw, 120px) 0 clamp(40px, 5vw, 64px); border-bottom: 1px solid var(--line); overflow: hidden;
  background: radial-gradient(ellipse 55% 80% at 88% 0%, rgba(216, 191, 148, .09), transparent 70%); }
.page-head .display { max-width: 16ch; }
.page-head .lede { margin-top: 24px; }
.page-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 28px; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.page-meta span + span::before { content: "·"; margin-right: 22px; color: var(--line-2); }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; color: var(--muted); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.crumbs a:hover { color: var(--sand); }
.crumbs span::before { content: "/"; margin-right: 8px; color: var(--line-2); }

/* Long-form reading: article column with an optional sticky table of contents */
.doc { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: 64px; justify-content: center; padding: clamp(48px, 6vw, 88px) 0 clamp(72px, 9vw, 120px); }
.doc.no-toc { grid-template-columns: minmax(0, 720px); }
.toc { position: sticky; top: 96px; align-self: start; display: grid; gap: 2px; font-size: 13.5px; }
.toc b { margin-bottom: 10px; color: var(--muted); font-family: var(--mono); font-size: 10.5px; font-weight: 400; letter-spacing: .14em; text-transform: uppercase; }
.toc a { padding: 6px 0 6px 12px; border-left: 1px solid var(--line); color: var(--muted); transition: color .2s ease, border-color .2s ease; }
.toc a:hover, .toc a.on { color: var(--text); border-left-color: var(--sand); }
@media (max-width: 960px) { .doc { grid-template-columns: minmax(0, 1fr); gap: 32px; } .toc { position: static; } }

.prose { color: var(--body); font-size: 17px; line-height: 1.75; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 2.4em; color: var(--text); font-family: var(--serif); font-size: clamp(26px, 2.6vw, 34px); line-height: 1.15; letter-spacing: -.01em; scroll-margin-top: 96px; }
.prose h3 { margin-top: 1.9em; color: var(--text); font-size: 18px; font-weight: 500; scroll-margin-top: 96px; }
.prose h2:first-child, .prose h3:first-child { margin-top: 0; }
.prose a { color: var(--sand); text-decoration: underline; text-decoration-color: rgba(216, 191, 148, .35); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--sand); }
.prose strong, .prose b { color: var(--text); font-weight: 500; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li + li { margin-top: .45em; }
.prose li::marker { color: var(--sand); }
.prose code { padding: 1px 6px; border: 1px solid var(--line); background: var(--panel); color: var(--cream); font-family: var(--mono); font-size: .86em; }
.prose pre { padding: 18px 20px; border: 1px solid var(--line); background: #f7f6f3; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.7; }
.prose pre code { padding: 0; border: 0; background: none; }
.prose blockquote { margin: 1.6em 0; padding: 4px 0 4px 22px; border-left: 2px solid var(--sand); color: var(--text); font-family: var(--serif); font-size: 21px; line-height: 1.5; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }
.prose .lead { color: var(--text); font-size: 20px; line-height: 1.6; }

/* Callouts and notes */
.callout { padding: 18px 20px; border: 1px solid var(--line-2); border-left: 2px solid var(--sand); background: var(--panel); color: var(--body); font-size: 15px; }
.callout b:first-child { display: block; margin-bottom: 6px; color: var(--sand); font-family: var(--mono); font-size: 10.5px; font-weight: 400; letter-spacing: .14em; text-transform: uppercase; }

/* Cards and grids */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.c4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid > * { background: var(--bg); }
@media (max-width: 960px) { .grid.c3, .grid.c4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .grid.c2, .grid.c3, .grid.c4 { grid-template-columns: 1fr; } }
.card { padding: clamp(22px, 2.6vw, 32px); }
.card h3 { color: var(--text); font-family: var(--serif); font-size: 24px; line-height: 1.15; }
.card p { margin-top: 10px; color: var(--body); font-size: 15px; }
.card .k { display: block; margin-bottom: 18px; color: var(--muted); font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; }

/* Big numbers */
.stat-n { font-family: var(--serif); font-size: clamp(40px, 4.6vw, 64px); line-height: 1; letter-spacing: -.02em; color: var(--text); }
.stat-n sup { margin-left: 4px; color: var(--sand); font-family: var(--mono); font-size: 11px; letter-spacing: .12em; vertical-align: super; }
.stat-l { margin-top: 12px; color: var(--body); font-size: 14px; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th { padding: 12px 16px; border-bottom: 1px solid var(--line-2); color: var(--muted); font-family: var(--mono); font-size: 10.5px; font-weight: 400; letter-spacing: .14em; text-transform: uppercase; text-align: left; white-space: nowrap; }
table.data td { padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--body); font-variant-numeric: tabular-nums; }
table.data tr:last-child td { border-bottom: 0; }
table.data td.num, table.data th.num { text-align: right; }
table.data tr.hl td { background: rgba(216, 191, 148, .06); color: var(--text); }

/* Figures */
figure.fig-box { margin: 2em 0; border: 1px solid var(--line); background: var(--panel); }
figure.fig-box > .fig { margin: 0; }
figure.fig-box figcaption { padding: 12px 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }

/* Final call to action band */
.cta-band { position: relative; overflow: hidden; padding: clamp(40px, 6vw, 72px); border: 1px solid var(--line-2);
  background: radial-gradient(ellipse 60% 120% at 100% 0%, rgba(216, 191, 148, .14), transparent 70%), var(--panel); }
.cta-band .h2 { max-width: 18ch; }
.cta-band p { margin-top: 16px; max-width: 56ch; color: var(--body); }
.cta-band .actions { margin-top: 28px; }

/* Small helpers */
.muted { color: var(--muted); }
.mt-0 { margin-top: 0 !important; }
.center { text-align: center; }
kbd { padding: 1px 6px; border: 1px solid var(--line-2); border-bottom-width: 2px; font-family: var(--mono); font-size: .85em; }