/* andyaudits.com — Phase 1 public site.
   Working-document vernacular: hairline rules, tabular figures, one accent. */

:root {
  --paper:      #f5f4f1;
  --sheet:      #fffefb;
  --ink:        #15171a;
  --ink-2:      #3c4147;
  --muted:      #686e75;
  --rule:       #dbd8d1;
  --rule-firm:  #a8a49a;
  --accent:     #7d1128;
  --accent-bg:  #f2e6e8;
  --measure:    62ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:     #101215;
    --sheet:     #181a1e;
    --ink:       #e9e7e2;
    --ink-2:     #c3c1bb;
    --muted:     #8d9299;
    --rule:      #2c3036;
    --rule-firm: #4b5057;
    --accent:    #e78098;
    --accent-bg: #26181c;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
}

.mono, .num, .ref, code, .file {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
               "Liberation Mono", monospace;
  font-variant-numeric: tabular-nums;
}

a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 10;
}
.skip:focus { left: 0; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 22px; }

/* ---- masthead ---------------------------------------------------------- */

.bar { border-bottom: 1px solid var(--rule); background: var(--sheet); }
.bar-in { display: flex; flex-wrap: wrap; gap: 14px 26px; align-items: baseline; padding: 14px 22px; }

.mark { text-decoration: none; display: flex; gap: 10px; align-items: baseline; }
.mark-name { font-size: 20px; font-weight: 700; letter-spacing: -.015em; }
.mark-sub { color: var(--muted); font-size: 12.5px; }
@media (max-width: 620px) { .mark-sub { display: none; } }

.nav { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 22px; margin: 0 0 0 auto; padding: 0; }
.nav a { text-decoration: none; font-size: 14.5px; color: var(--ink-2); padding: 4px 0; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--accent); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.nav-cta { color: var(--ink) !important; font-weight: 600; }

/* ---- sections ---------------------------------------------------------- */

section { padding: 52px 0; border-top: 1px solid var(--rule); }
section:first-of-type { border-top: 0; }
.wrap > :first-child { margin-top: 0; }

h1 { font-size: clamp(28px, 4.2vw, 40px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 18px; max-width: 22ch; }
h2 { font-size: clamp(20px, 2.6vw, 25px); letter-spacing: -.012em; margin: 0 0 14px; }
h3 { font-size: 17px; margin: 28px 0 6px; }
p  { max-width: var(--measure); margin: 0 0 14px; color: var(--ink-2); }
.lede { font-size: 18px; color: var(--ink); max-width: 60ch; }
.note { font-size: 14px; color: var(--muted); }

ul.plain { list-style: none; padding: 0; margin: 0; }

.cols { display: grid; gap: 34px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.btn {
  display: inline-block; padding: .62rem 1.15rem; font-size: 15px; font-weight: 600;
  text-decoration: none; border: 1px solid var(--ink); background: var(--ink); color: var(--paper);
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.quiet { background: transparent; color: var(--ink); }
.btn.quiet:hover { color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

/* ---- sheets and tables ------------------------------------------------- */

.sheet { background: var(--sheet); border: 1px solid var(--rule); margin: 26px 0; }
.sheet-head {
  display: flex; flex-wrap: wrap; gap: 4px 18px; align-items: baseline;
  padding: 11px 16px; border-bottom: 1px solid var(--rule-firm);
}
.sheet-title { font-size: 13.5px; font-weight: 700; letter-spacing: .01em; }
.sheet-meta { font-size: 12.5px; color: var(--muted); margin-left: auto; }
.sheet-body { padding: 16px; }
.scroll { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
caption { text-align: left; padding: 0 16px 10px; font-size: 12.5px; color: var(--muted); }
th {
  text-align: left; font-weight: 700; font-size: 12.5px; color: var(--ink);
  padding: 9px 16px; border-bottom: 1px solid var(--rule-firm); white-space: nowrap;
}
td { padding: 9px 16px; border-bottom: 1px solid var(--rule); color: var(--ink-2); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
.num { text-align: right; white-space: nowrap; color: var(--ink); }
th.num { text-align: right; }
.ref { color: var(--muted); white-space: nowrap; }
.var { color: var(--accent); font-weight: 700; }
tr.total td { border-top: 2px solid var(--rule-firm); border-bottom: 0; font-weight: 700; color: var(--ink); }
.basis { display: block; font-size: 12px; color: var(--muted); margin-top: 3px; }

/* rebuild block: the arithmetic, shown as arithmetic */
.rebuild { font-size: 14px; }
.rebuild dl { display: grid; grid-template-columns: 1fr auto; gap: 0; margin: 0; }
.rebuild dt { padding: 7px 0; border-bottom: 1px solid var(--rule); color: var(--ink-2); }
.rebuild dd {
  margin: 0; padding: 7px 0 7px 24px; border-bottom: 1px solid var(--rule);
  text-align: right; white-space: nowrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-variant-numeric: tabular-nums;
}
.rebuild dt.sum, .rebuild dd.sum { border-bottom: 0; border-top: 2px solid var(--rule-firm); font-weight: 700; color: var(--ink); }

/* ---- numbered document list -------------------------------------------- */

.docs { list-style: none; margin: 22px 0 0; padding: 0; counter-reset: doc; }
.docs > li { display: grid; grid-template-columns: 2.2rem 1fr; gap: 0 16px; padding: 16px 0; border-top: 1px solid var(--rule); }
.docs > li::before {
  counter-increment: doc; content: counter(doc, decimal-leading-zero);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px; color: var(--muted); padding-top: 2px;
}
.docs h3 { margin: 0 0 4px; font-size: 16px; }
.docs p { margin: 0; font-size: 14.5px; }
.file { display: inline-block; font-size: 12.5px; color: var(--muted); margin-top: 6px; }

/* ---- steps ------------------------------------------------------------- */

.steps { list-style: none; margin: 22px 0 0; padding: 0; counter-reset: step; }
.steps > li { padding: 14px 0 14px 2.4rem; border-top: 1px solid var(--rule); position: relative; }
.steps > li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px; color: var(--accent); font-weight: 700;
}
.steps h3 { margin: 0 0 4px; font-size: 16px; }
.steps p { margin: 0; font-size: 14.5px; }

/* ---- callout ----------------------------------------------------------- */

.callout { border-left: 3px solid var(--accent); background: var(--accent-bg); padding: 16px 18px; margin: 22px 0; }
.callout p { color: var(--ink); margin-bottom: 0; }
.callout p + p { margin-top: 10px; }

/* ---- footer ------------------------------------------------------------ */

.foot { border-top: 1px solid var(--rule); background: var(--sheet); padding: 30px 0 44px; margin-top: 0; }
.foot p { font-size: 13.5px; color: var(--muted); max-width: 68ch; }
.foot a { color: var(--ink-2); }