/* sxhx.io — built on the AutoCo design system (see _source/AutoCo-DESIGN.md).
   One typeface, paper and ink, one accent, hairlines, square corners. */

:root {
  --paper: #f4f4f1;
  --paper-raised: #ffffff;
  --paper-sunk: #fbfbf8;
  --ink: #16171a;
  --ink-2: #35383d;
  --ink-3: #45484e;
  --ink-4: #5a5d63;
  --line: #d9d9d2;
  --line-strong: #c7c7bf;
  --line-soft: #dcdcd6;
  --connector: #c2c4bc;
  --connector-strong: #9a9d93;
  --accent: #1f4d4a;
  --accent-hover: #0f2e2c;
  --on-accent: #ffffff;
  --inverse-text: #f4f4f1;
  --inverse-muted: #c9c9c2;
  --inverse-subtle: #9a9a93;
  --inverse-label: #b9b9b2;
  --inverse-field: #1f2024;
  --inverse-line: #45474d;
  --inverse-line-2: #5a5c62;
  --inverse-divider: #2c2d31;
  --inverse-placeholder: #7a7c82;
  --desirability: #3f6b53;
  --feasibility: #5b6fa6;
  --viability: #86682f;
  --supported-bg: #eef4ef;
  --supported-line: #c9d8cc;
  --supported-text: #2e5a3f;
  --testing-bg: #f8f2e6;
  --testing-line: #e3d3b3;
  --testing-text: #6e521d;
  --unexamined-line: #bfc1b9;
  --container: 1120px;
  --gutter: clamp(24px, 5vw, 56px);
  --measure: 54ch;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-mono); font-size: 15px; line-height: 1.65; }
img, svg { max-width: 100%; }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { text-wrap: balance; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--paper-raised); padding: 8px 12px; z-index: 10; }

/* ---------- layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); }
.section { border-top: 1px solid var(--line); padding-block: clamp(56px, 7vw, 104px); }
.section > .container { display: flex; flex-direction: column; gap: 40px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(32px, 4vw, 56px) clamp(24px, 3vw, 48px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(32px, 4vw, 56px) clamp(24px, 3vw, 40px); }
.split { display: flex; flex-wrap: wrap; gap: clamp(32px, 4vw, 72px); }
.split > :first-child { flex: 1 1 360px; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
.split > :last-child { flex: 1 1 400px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.row-between { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 16px; }

/* ---------- header / footer ---------- */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.site-header .container { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.wordmark { font-size: 14px; font-weight: 600; letter-spacing: .08em; color: var(--ink); text-decoration: none; text-transform: uppercase; }
.wordmark:hover { color: var(--ink); }
.nav { display: flex; align-items: center; gap: clamp(16px, 2.5vw, 32px); font-size: 13px; }
.nav a:not(.btn) { color: var(--ink-3); text-decoration: none; padding-block: 4px; border-bottom: 1px solid transparent; }
.nav a:not(.btn):hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }

.site-footer { background: var(--ink); color: var(--inverse-subtle); border-top: 1px solid var(--inverse-divider); padding-block: 40px; font-size: 13px; }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.site-footer a { color: var(--inverse-muted); text-decoration: none; }
.site-footer a:hover { color: var(--inverse-text); }
.site-footer .wordmark { color: var(--inverse-text); }

/* ---------- type ---------- */
.eyebrow { font-size: 12px; line-height: 16px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-4); }
.eyebrow--accent { color: var(--accent); }
.label { font-size: 11px; line-height: 16px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4); }
.display { margin: 0; max-width: 24ch; font-size: clamp(34px, 5.2vw, 60px); font-weight: 500; line-height: 1.12; letter-spacing: -.02em; }
.section-title { margin: 0; max-width: 24ch; font-size: clamp(24px, 2.8vw, 34px); font-weight: 500; line-height: 1.25; letter-spacing: -.01em; }
.cta-title { margin: 0; max-width: 24ch; font-size: clamp(26px, 3.4vw, 42px); font-weight: 500; line-height: 1.2; letter-spacing: -.01em; }
.lead { margin: 0; max-width: 62ch; font-size: clamp(15px, 1.3vw, 18px); color: var(--ink-2); }
.body { margin: 0; max-width: var(--measure); color: var(--ink-2); }
.small { font-size: 13px; color: var(--ink-3); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 28px; border: 0; border-radius: 0; background: var(--accent); color: var(--on-accent); font: inherit; font-size: 15px; letter-spacing: .04em; text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn--sm { min-height: 44px; padding: 0 20px; font-size: 13px; }
.btn--inverse { background: var(--inverse-text); color: var(--ink); }
.btn--inverse:hover { background: var(--paper-raised); color: var(--ink); }
.btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); }
.btn--ghost:hover { background: var(--paper-raised); color: var(--ink); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; padding-top: 8px; }
.inverse .link, .inverse a.link { color: var(--inverse-muted); }

/* ---------- hero + texture ---------- */
.hero { padding-block: clamp(64px, 9vw, 128px); }
.hero > .container { display: flex; flex-direction: column; gap: 32px; }
.hero--compact { padding-block: clamp(56px, 7vw, 96px); }
.texture {
  background-color: var(--paper);
  background-image: linear-gradient(90deg, #f4f4f1 0%, rgba(244,244,241,.92) 30%, rgba(244,244,241,.3) 62%, rgba(244,244,241,0) 85%), url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2264%22%20height%3D%22128%22%20viewBox%3D%220%200%2064%20128%22%3E%3Cpath%20d%3D%22M-12%200V16C-12%2040%204%2024%204%2048V80C4%20104%20-12%2088%20-12%20112V128%20M-4%200V16C-4%2040%2012%2024%2012%2048V80C12%20104%20-4%2088%20-4%20112V128%20M4%200V16C4%2040%2020%2024%2020%2048V80C20%20104%204%2088%204%20112V128%20M12%200V16C12%2040%2028%2024%2028%2048V80C28%20104%2012%2088%2012%20112V128%20M20%200V16C20%2040%2036%2024%2036%2048V80C36%20104%2020%2088%2020%20112V128%20M28%200V16C28%2040%2044%2024%2044%2048V80C44%20104%2028%2088%2028%20112V128%20M36%200V16C36%2040%2052%2024%2052%2048V80C52%20104%2036%2088%2036%20112V128%20M44%200V16C44%2040%2060%2024%2060%2048V80C60%20104%2044%2088%2044%20112V128%20M52%200V16C52%2040%2068%2024%2068%2048V80C68%20104%2052%2088%2052%20112V128%20M60%200V16C60%2040%2076%2024%2076%2048V80C76%20104%2060%2088%2060%20112V128%22%20fill%3D%22none%22%20stroke%3D%22%2316171A%22%20stroke-opacity%3D%220.13%22%20stroke-width%3D%222.2%22%2F%3E%3C%2Fsvg%3E");
  background-size: auto, 64px 128px; background-repeat: no-repeat, repeat;
}
.texture--inverse {
  background-color: var(--ink);
  background-image: linear-gradient(90deg, #16171a 0%, rgba(22,23,26,.92) 30%, rgba(22,23,26,.3) 62%, rgba(22,23,26,0) 85%), url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2264%22%20height%3D%22128%22%20viewBox%3D%220%200%2064%20128%22%3E%3Cpath%20d%3D%22M-12%200V16C-12%2040%204%2024%204%2048V80C4%20104%20-12%2088%20-12%20112V128%20M-4%200V16C-4%2040%2012%2024%2012%2048V80C12%20104%20-4%2088%20-4%20112V128%20M4%200V16C4%2040%2020%2024%2020%2048V80C20%20104%204%2088%204%20112V128%20M12%200V16C12%2040%2028%2024%2028%2048V80C28%20104%2012%2088%2012%20112V128%20M20%200V16C20%2040%2036%2024%2036%2048V80C36%20104%2020%2088%2020%20112V128%20M28%200V16C28%2040%2044%2024%2044%2048V80C44%20104%2028%2088%2028%20112V128%20M36%200V16C36%2040%2052%2024%2052%2048V80C52%20104%2036%2088%2036%20112V128%20M44%200V16C44%2040%2060%2024%2060%2048V80C60%20104%2044%2088%2044%20112V128%20M52%200V16C52%2040%2068%2024%2068%2048V80C68%20104%2052%2088%2052%20112V128%20M60%200V16C60%2040%2076%2024%2076%2048V80C76%20104%2060%2088%2060%20112V128%22%20fill%3D%22none%22%20stroke%3D%22%23F4F4F1%22%20stroke-opacity%3D%220.10%22%20stroke-width%3D%222.2%22%2F%3E%3C%2Fsvg%3E");
  background-size: auto, 64px 128px; background-repeat: no-repeat, repeat;
}

/* ---------- content units ---------- */
.rule-item { display: flex; flex-direction: column; gap: 14px; border-top: 1px solid var(--ink); padding-top: 20px; min-width: 0; }
.rule-item__num { font-size: 12px; letter-spacing: .12em; color: var(--ink-4); }
.rule-item__title { margin: 0; font-size: 19px; font-weight: 500; line-height: 1.35; }
.rule-item--module { gap: 12px; padding-top: 24px; }
.rule-item--module .rule-item__num { padding-top: 8px; }
.rule-item--module .rule-item__title { font-size: 20px; }
.rule-item__body { margin: 0; color: var(--ink-2); max-width: var(--measure); }
a.rule-item { color: inherit; text-decoration: none; }
a.rule-item:hover .rule-item__title { color: var(--accent); }
.rule-item__more { font-size: 13px; color: var(--accent); margin-top: auto; padding-top: 4px; }
.rule-item__soon { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4); margin-top: auto; padding-top: 4px; }

.icon { display: block; width: 40px; height: 40px; flex: 0 0 auto; color: var(--accent); fill: none; stroke: currentColor; stroke-width: 1.25; stroke-linecap: square; stroke-linejoin: miter; }
.icon--sm { width: 20px; height: 20px; }

.list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 24px; }
.list li { display: flex; align-items: center; gap: 12px; padding-block: 12px; border-top: 1px solid var(--line); font-size: 14px; }
.list--one { grid-template-columns: minmax(0, 1fr); }

.box { background: var(--paper-raised); border: 1px solid var(--line-strong); padding: clamp(24px, 2.5vw, 36px); display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.box--strong { border-color: var(--ink); }
.box__title { margin: 0; font-size: 21px; font-weight: 500; }
.box__body { margin: 0; color: var(--ink-2); }
.box__note { font-size: 13px; color: var(--ink-4); }

.partners { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.partner { background: var(--paper); min-height: 120px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 20px; text-align: center; font-size: 13px; letter-spacing: .06em; color: var(--ink-3); }
.partner b { font-weight: 600; color: var(--ink); }
.partner small { font-size: 12px; color: var(--ink-4); }
.partner img { display: block; height: 28px; width: auto; }

/* facts table: label / value rows under hairlines */
.facts { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); }
.facts > div { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 16px; padding-block: 14px; border-top: 1px solid var(--line); }
.facts > div:last-child { border-bottom: 1px solid var(--line); }
.facts dt { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4); padding-top: 3px; }
.facts dd { margin: 0; color: var(--ink-2); font-size: 14px; }

/* placeholder copy the owner still needs to confirm */
.todo { background: var(--testing-bg); outline: 1px dashed var(--testing-line); color: var(--testing-text); padding: 0 4px; }

/* hypothesis-tree atoms (AutoCo page) */
.cat--desirability { --cat: var(--desirability); }
.cat--feasibility { --cat: var(--feasibility); }
.cat--viability { --cat: var(--viability); }
.node { background: var(--paper-sunk); border: 1px solid var(--line-soft); border-top: 3px solid var(--cat, var(--ink)); padding: 12px 8px; text-align: center; display: flex; flex-direction: column; gap: 2px; justify-content: center; }
.node__name { font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--cat, var(--ink)); }
.node__q { font-size: 13px; color: var(--ink-4); }
.hcard { background: var(--paper-raised); border: 1px solid var(--line-soft); border-left: 3px solid var(--cat, var(--ink)); padding: 14px 16px; display: flex; flex-direction: column; justify-content: space-between; gap: 12px; }
.hcard__meta { display: flex; justify-content: space-between; align-items: center; font-size: 10px; letter-spacing: .12em; color: var(--cat, var(--ink-4)); }
.hcard__text { margin: 0; font-size: 13px; line-height: 1.45; color: var(--ink); }
.hcard__foot { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--ink-4); font-variant-numeric: tabular-nums; }
.tag { font-size: 10px; letter-spacing: .02em; color: var(--ink-4); border: 1px solid var(--line-soft); padding: 0 6px; }
.pill { display: inline-block; border-radius: 999px; padding: 1px 8px; font-size: 11px; border: 1px solid; }
.pill--supported { background: var(--supported-bg); border-color: var(--supported-line); color: var(--supported-text); }
.pill--testing { background: var(--testing-bg); border-color: var(--testing-line); color: var(--testing-text); }
.pill--unexamined { background: transparent; border-style: dashed; border-color: var(--unexamined-line); color: var(--ink-4); }

.tree { position: relative; width: 1008px; height: 624px; }
.tree > * { position: absolute; }
.tree .node { width: 184px; height: 72px; left: 0; }
.tree .hcard { width: 216px; height: 152px; }
.tree .axis-label { font-size: 11px; line-height: 16px; letter-spacing: .12em; color: var(--ink-4); }
.tree-mob { display: none; flex-direction: column; gap: 28px; }
.tree-mob .stack { display: flex; flex-direction: column; }
.tree-mob .stem { width: 1.5px; height: 20px; margin-left: 24px; background: var(--connector); }
.tree-mob .hcard { min-height: 136px; }

.agents { position: relative; width: 1008px; height: 320px; }
.agents > * { position: absolute; }
.fn { background: var(--paper-raised); border: 1px solid var(--line-strong); padding: 16px; font-size: 14px; line-height: 1.45; display: flex; align-items: center; }
.fn b { font-weight: 600; }
.factbar { background: var(--ink); color: var(--inverse-text); padding: 16px; text-align: center; font-size: 14px; line-height: 1.6; display: flex; align-items: center; justify-content: center; }
.factbar b { font-weight: 600; font-size: 17px; }
.agents-mob { display: none; flex-direction: column; }
.agents-mob .fns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.agents-mob .fn { font-size: 13px; }
.mcp { font-size: 12px; letter-spacing: .08em; color: var(--ink-4); }

/* ---------- inverse section + form ---------- */
.inverse { background-color: var(--ink); color: var(--inverse-text); }
.inverse .body, .inverse .lead { color: var(--inverse-muted); }
.inverse .eyebrow { color: var(--inverse-label); }
.cta { padding-block: clamp(64px, 8vw, 112px); border-top: 1px solid var(--line); }
.cta > .container { display: flex; flex-direction: column; gap: 32px; }
.cta > [hidden] { display: none; }
/* HypoTree embed: the frame brings its own padding, heading and form, and scrolls inside when the tree grows. */
.cta--embed { padding-block: 0; background-image: none; }
.hypotree-frame { display: block; width: 100%; height: 820px; border: 0; background: var(--ink); }
@media (max-width: 720px) { .hypotree-frame { height: 960px; } }
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field__label { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--inverse-label); }
.input { min-height: 48px; padding: 0 14px; width: 100%; background: var(--inverse-field); border: 1px solid var(--inverse-line); border-radius: 0; color: var(--inverse-text); font-family: inherit; font-size: 14px; }
textarea.input { padding: 12px 14px; min-height: 120px; resize: vertical; }
.input::placeholder { color: var(--inverse-placeholder); }
.inverse :focus-visible { outline-color: var(--inverse-text); }
.drop { border: 1px dashed var(--inverse-line-2); padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.drop__hint { font-size: 13px; color: var(--inverse-subtle); }
.drop input { font-family: inherit; font-size: 14px; color: var(--inverse-muted); max-width: 100%; }
.drop input::file-selector-button { font-family: inherit; font-size: 13px; min-height: 40px; padding: 0 16px; margin-right: 16px; background: transparent; color: var(--inverse-text); border: 1px solid var(--inverse-line-2); border-radius: 0; cursor: pointer; }
.form { display: flex; flex-direction: column; gap: 24px; max-width: 880px; }
.form .grid-2 { gap: 24px; }

/* ---------- ledger ---------- */
.stats { display: flex; flex-wrap: wrap; gap: 0; border-top: 1px solid var(--ink); }
.stat { flex: 1 1 160px; padding: 16px 24px 4px 0; display: flex; flex-direction: column; gap: 4px; }
.stat b { font-size: clamp(24px, 2.6vw, 32px); font-weight: 500; letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1.2; }
.stat span { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4); }

.tabs { display: flex; gap: 28px; border-bottom: 1px solid var(--line); }
.tab { font: inherit; font-size: 13px; letter-spacing: .04em; background: none; border: 0; color: var(--ink-4); cursor: pointer; padding: 0 0 12px; border-bottom: 1px solid transparent; margin-bottom: -1px; }
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--ink); }
.tab .n { color: var(--ink-4); margin-left: 6px; font-variant-numeric: tabular-nums; }

.toolbar { position: sticky; top: 0; z-index: 3; background: var(--paper); border-bottom: 1px solid var(--line); padding-block: 16px; display: flex; flex-direction: column; gap: 12px; }
.toolbar__row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.search { flex: 1 1 280px; min-height: 44px; padding: 0 14px; background: var(--paper-raised); border: 1px solid var(--line-strong); border-radius: 0; font: inherit; font-size: 14px; color: var(--ink); }
.search::placeholder { color: var(--ink-4); }
.select { min-height: 44px; padding: 0 36px 0 12px; background: var(--paper-raised) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0 L5 6 L10 0' fill='none' stroke='%235A5D63' stroke-width='1.25'/%3E%3C/svg%3E") no-repeat right 12px center; border: 1px solid var(--line-strong); border-radius: 0; font: inherit; font-size: 13px; color: var(--ink); appearance: none; -webkit-appearance: none; cursor: pointer; max-width: 100%; }
.chip { font: inherit; font-size: 12px; letter-spacing: .04em; min-height: 32px; padding: 0 12px; background: transparent; color: var(--ink-3); border: 1px solid var(--line-strong); border-radius: 0; cursor: pointer; }
.chip:hover { color: var(--ink); border-color: var(--ink-4); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--inverse-text); }
.toolbar__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; font-size: 12px; color: var(--ink-4); }
.linkbtn { font: inherit; font-size: 12px; background: none; border: 0; padding: 0; color: var(--accent); text-decoration: underline; cursor: pointer; }
.linkbtn[hidden] { display: none; }

.ledger { width: 100%; border-collapse: collapse; }
.ledger th { text-align: left; font-weight: 400; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4); padding: 16px 12px 10px; border-bottom: 1px solid var(--ink); white-space: nowrap; }
.ledger th:first-child, .ledger td:first-child { padding-left: 0; }
.ledger th button { font: inherit; letter-spacing: inherit; text-transform: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.ledger th button:hover { color: var(--ink); }
.ledger th[aria-sort] button { color: var(--ink); }
.ledger th .arrow { display: inline-block; width: 1ch; margin-left: 4px; }
.ledger td { padding: 14px 12px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px; }
.ledger tbody tr.row { cursor: pointer; }
.ledger tbody tr.row:hover td { background: var(--paper-raised); }
.ledger tbody tr.row[aria-expanded="true"] td { background: var(--paper-raised); border-bottom-color: transparent; }
.col-size { text-align: right !important; white-space: nowrap; font-variant-numeric: tabular-nums; }
.col-base { white-space: nowrap; }
.f-name { font-weight: 500; color: var(--ink); }
.f-sub { display: block; font-size: 12px; color: var(--ink-4); margin-top: 2px; }
.f-amt { font-weight: 500; }
.f-amt.none { color: var(--ink-4); font-weight: 400; }
.f-kind { display: block; font-size: 11px; color: var(--ink-4); letter-spacing: .02em; margin-top: 2px; }
.stage-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.stage-tag { font-size: 11px; color: var(--ink-3); border: 1px solid var(--line-strong); padding: 0 6px; white-space: nowrap; }
.new-tag { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent); padding: 0 5px; margin-left: 8px; vertical-align: 2px; font-weight: 400; }
.detail td { background: var(--paper-raised); padding-top: 0; padding-bottom: 20px; }
.detail .facts > div { grid-template-columns: 140px minmax(0, 1fr); padding-block: 10px; }
.detail .facts > div:last-child { border-bottom: 0; }
.detail .facts dd a { word-break: break-all; }
.empty { padding: 40px 0; color: var(--ink-4); max-width: 54ch; }

.src-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.src { background: var(--paper-raised); border: 1px solid var(--line-strong); padding: 20px; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.src h3 { margin: 0; font-size: 16px; font-weight: 500; }
.src h3 a { color: var(--ink); text-decoration: none; }
.src h3 a:hover { color: var(--accent); }
.src p { margin: 0; font-size: 13px; color: var(--ink-2); }
.src .meta { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-4); }

.scanlog { list-style: none; margin: 0; padding: 0; }
.scanlog li { display: grid; grid-template-columns: 120px 120px minmax(0, 1fr); gap: 16px; padding-block: 14px; border-top: 1px solid var(--line); font-size: 14px; }
.scanlog li:last-child { border-bottom: 1px solid var(--line); }
.scanlog time { color: var(--ink); font-variant-numeric: tabular-nums; }
.scanlog .delta { color: var(--ink-4); font-variant-numeric: tabular-nums; }
.scanlog p { margin: 0; color: var(--ink-2); }

/* image gallery (Zones case study): one wide image over two, hairline frames */
.gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.gallery figure { margin: 0; border: 1px solid var(--line-strong); background: var(--paper-raised); overflow: hidden; }
.gallery img { display: block; width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.gallery__wide { grid-column: 1 / -1; }
.gallery__wide img { aspect-ratio: 16 / 9; }
.gallery__caption { grid-column: 1 / -1; font-size: 12px; color: var(--ink-4); }

/* CSV sign-up dialog */
.signup { width: min(560px, calc(100vw - 32px)); max-width: none; padding: 0; border: 1px solid var(--ink); border-radius: 0; background: var(--paper); color: var(--ink); }
.signup::backdrop { background: rgba(22, 23, 26, .55); }
.signup form { display: flex; flex-direction: column; gap: 16px; padding: clamp(24px, 4vw, 40px); }
.signup__title { margin: 0; font-size: clamp(20px, 2.2vw, 26px); font-weight: 500; line-height: 1.25; }
.signup__field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.signup__row .signup__field { flex: 1 1 200px; }
.signup__field i { font-style: normal; text-transform: none; letter-spacing: 0; color: var(--ink-4); }
.signup__field .search { flex: none; width: 100%; }
.signup__row { display: flex; flex-wrap: wrap; gap: 16px; }
.signup__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.signup__msg { margin: 0; min-height: 1.4em; font-size: 13px; color: var(--ink-3); }
.btn:disabled { opacity: .6; cursor: progress; }

/* ---------- mobile ---------- */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .grid-2, .list, .gallery { grid-template-columns: minmax(0, 1fr); }
  .partners { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .partner { min-height: 104px; padding: 16px 10px; }
  .nav a.nav-link { display: none; }
  .site-header .container { min-height: 64px; }
  .hero.texture { background-image: none; }
  .cta.texture--inverse, .site-footer.texture--inverse { background-image: none; }
  .form .btn { width: 100%; }
  .desk { display: none !important; }
  .tree-mob, .agents-mob { display: flex; }
  .facts > div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .scanlog li { grid-template-columns: minmax(0, 1fr); gap: 2px; }

  /* ledger rows become stacked cards */
  .ledger thead { display: none; }
  .ledger, .ledger tbody { display: block; }
  .ledger tr.row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .ledger tr.row td { display: block; padding: 0; border: 0; }
  .ledger tr.row td.col-name { grid-column: 1; grid-row: 1; }
  .ledger tr.row td.col-size { grid-column: 2; grid-row: 1; }
  .ledger tr.row td.col-base { grid-column: 1 / -1; grid-row: 2; font-size: 12px; color: var(--ink-4); }
  .ledger tr.row td.col-stage { grid-column: 1 / -1; grid-row: 3; }
  .ledger tr.row td.col-stage:empty { display: none; }
  .ledger tr.row[aria-expanded="true"] { background: var(--paper-raised); border-bottom-color: transparent; padding-inline: 12px; margin-inline: -12px; }
  .ledger tr.detail { display: block; background: var(--paper-raised); margin-inline: -12px; padding: 0 12px 12px; border-bottom: 1px solid var(--line); }
  .ledger tr.detail td { display: block; padding: 0; }
  .toolbar { position: static; }
  .toolbar .select { flex: 1 1 calc(50% - 4px); min-width: 0; width: 0; }
  .toolbar .sep { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media print { .site-header .nav, .toolbar, .cta { display: none; } }