/* ============================================================
   YDIAW 2027 Design System — "Institutional Wrongness"
   v6 · Near-black / warm white / stone / midnight navy / controlled gold
   No external fonts. No frameworks. No excuses (except billable ones).
   ============================================================ */

:root {
  /* Palette */
  --ink:        #101014;   /* near black */
  --ink-2:      #1a1b21;   /* raised near-black surfaces */
  --ink-3:      #23242c;   /* borders on dark */
  --paper:      #f7f4ee;   /* warm white */
  --paper-2:    #efeae0;   /* warm white, recessed */
  --stone:      #8b8778;   /* muted stone gray */
  --stone-2:    #66635a;   /* deep stone for body on paper */
  --navy:       #152238;   /* midnight navy */
  --navy-2:     #1d2f4e;
  --gold:       #a8842c;   /* controlled metallic gold — accent ONLY */
  --gold-soft:  #c3a75a;
  --alert:      #a3271e;   /* warning red: critical wrongness states */

  /* Type */
  --serif: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, 'Times New Roman', serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* Rhythm */
  --max: 1180px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --sec: clamp(4rem, 9vw, 7.5rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--navy); color: var(--paper); }

/* ---------- Utility bar ---------- */
.utility {
  background: var(--ink); color: var(--stone);
  font-size: .75rem; letter-spacing: .08em;
}
.utility .wrap {
  max-width: var(--max); margin: 0 auto; padding: .45rem var(--pad);
  display: flex; justify-content: space-between; gap: 1rem;
}
.utility a { color: var(--stone); text-decoration: none; }
.utility a:hover, .utility a:focus-visible { color: var(--paper); }
.utility .right span + span::before { content: "·"; margin: 0 .6em; color: var(--ink-3); }

/* ---------- Header / navigation ---------- */
header.site {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid color-mix(in srgb, var(--stone) 35%, transparent);
}
.nav {
  max-width: var(--max); margin: 0 auto; padding: .9rem var(--pad);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1.15; }
.brand .word {
  font-family: var(--serif); font-weight: 700; font-size: 1.22rem;
  letter-spacing: .01em; color: var(--ink);
}
.brand .desc {
  font-size: .62rem; letter-spacing: .34em; text-transform: uppercase; color: var(--gold);
}
nav.primary { display: flex; gap: 1.6rem; align-items: center; }
nav.primary a {
  text-decoration: none; font-size: .86rem; letter-spacing: .04em;
  color: var(--stone-2); padding: .3rem 0; border-bottom: 2px solid transparent;
}
nav.primary a:hover, nav.primary a:focus-visible,
nav.primary a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--gold); }
.nav .cta {
  font-size: .82rem; letter-spacing: .05em; text-decoration: none;
  background: var(--navy); color: var(--paper);
  padding: .62rem 1.15rem; border: 1px solid var(--navy);
}
.nav .cta:hover, .nav .cta:focus-visible { background: var(--navy-2); }
.menu-btn {
  display: none; background: none; border: 1px solid var(--stone);
  padding: .45rem .7rem; font: inherit; font-size: .8rem; letter-spacing: .1em;
  cursor: pointer; color: var(--ink);
}
@media (max-width: 900px) {
  nav.primary {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--stone);
    flex-direction: column; align-items: flex-start; gap: 0; padding: .5rem var(--pad) 1rem;
  }
  nav.primary.open { display: flex; }
  nav.primary a { padding: .7rem 0; width: 100%; border-bottom: 1px solid var(--paper-2); }
  .menu-btn { display: block; }
  .nav .cta { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  font-family: var(--sans); font-size: .9rem; letter-spacing: .05em;
  padding: .95rem 1.9rem; border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper);
  transition: background .18s ease, color .18s ease;
}
.btn:hover, .btn:focus-visible { background: var(--navy); border-color: var(--navy); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover, .btn.ghost:focus-visible { background: var(--ink); color: var(--paper); }
.btn.on-dark { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn.on-dark:hover, .btn.on-dark:focus-visible { background: var(--gold-soft); border-color: var(--gold-soft); color: var(--ink); }
.btn.ghost.on-dark { background: transparent; color: var(--paper); }
.btn.ghost.on-dark:hover, .btn.ghost.on-dark:focus-visible { background: var(--paper); color: var(--ink); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* ---------- Sections & typography ---------- */
section { padding: var(--sec) 0; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.eyebrow {
  font-size: .72rem; letter-spacing: .34em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1.1rem; font-weight: 600;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; }
h1 { font-size: clamp(2.6rem, 6.5vw, 4.6rem); letter-spacing: -.015em; }
h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); letter-spacing: -.01em; margin-bottom: 1.2rem; }
h3 { font-size: 1.22rem; margin-bottom: .5rem; }
.lede { font-size: clamp(1.08rem, 2vw, 1.3rem); color: var(--stone-2); max-width: 46ch; }
.dark { background: var(--ink); color: var(--paper); }
.dark .lede { color: var(--stone); }
.navy-band { background: var(--navy); color: var(--paper); }
.paper-2 { background: var(--paper-2); }
.center { text-align: center; }
.center .lede { margin-inline: auto; }
.footnote { font-size: .78rem; color: var(--stone); margin-top: 1.6rem; }

/* ---------- Hero ---------- */
.hero { background: var(--ink); color: var(--paper); padding: clamp(5rem, 12vw, 9.5rem) 0; position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(115deg, transparent 55%, color-mix(in srgb, var(--navy) 55%, transparent) 100%),
    radial-gradient(1100px 420px at 88% -10%, color-mix(in srgb, var(--gold) 14%, transparent), transparent 65%);
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 13ch; }
.hero .lede { margin: 1.6rem 0 2.6rem; }
.hero .actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero .heritage {
  margin-top: 4.5rem; font-size: .8rem; letter-spacing: .06em; color: var(--stone);
  border-top: 1px solid var(--ink-3); padding-top: 1.2rem; max-width: 52ch;
}

/* ---------- Live index / stat bands ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 1px; background: var(--ink-3); border: 1px solid var(--ink-3); }
.stat { background: var(--ink-2); padding: 1.7rem 1.5rem; }
.stat .num { font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.4rem); color: var(--paper); font-variant-numeric: tabular-nums; }
.stat .num .delta { font-family: var(--sans); font-size: .72rem; color: var(--gold-soft); vertical-align: super; margin-left: .3rem; }
.stat .num.alert { color: var(--alert); filter: brightness(1.35); }
.stat .label { font-size: .78rem; letter-spacing: .07em; text-transform: uppercase; color: var(--stone); margin-top: .5rem; }

/* ---------- Card grids ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.card {
  background: var(--paper); border: 1px solid color-mix(in srgb, var(--stone) 38%, transparent);
  padding: 2rem 1.8rem; text-decoration: none; display: block; color: inherit;
  transition: border-color .18s ease, transform .18s ease;
}
.card:hover, .card:focus-visible { border-color: var(--navy); transform: translateY(-3px); }
.card .k { font-size: .68rem; letter-spacing: .28em; text-transform: uppercase; color: var(--gold); display: block; margin-bottom: .9rem; }
.card p { color: var(--stone-2); font-size: .95rem; }
.card .more { display: inline-block; margin-top: 1.1rem; font-size: .8rem; letter-spacing: .06em; color: var(--navy); }
.dark .card, .navy-band .card { background: var(--ink-2); border-color: var(--ink-3); }
.dark .card p { color: var(--stone); }
.dark .card:hover { border-color: var(--gold); }

/* ---------- Industries strip ---------- */
.strip { display: flex; flex-wrap: wrap; gap: .6rem; }
.strip a {
  text-decoration: none; font-size: .84rem; letter-spacing: .04em;
  border: 1px solid color-mix(in srgb, var(--stone) 45%, transparent);
  padding: .55rem 1.05rem; color: var(--stone-2); background: var(--paper);
}
.strip a:hover, .strip a:focus-visible { border-color: var(--navy); color: var(--ink); }

/* ---------- Report / editorial feature ---------- */
.feature { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
@media (max-width: 860px) { .feature { grid-template-columns: 1fr; } }
.report-cover {
  aspect-ratio: 3/4; max-width: 420px; width: 100%;
  background: linear-gradient(160deg, var(--navy) 0%, var(--ink) 78%);
  border: 1px solid var(--ink-3); color: var(--paper);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 2.2rem; box-shadow: 24px 24px 0 0 color-mix(in srgb, var(--gold) 22%, transparent);
}
.report-cover .top { font-size: .68rem; letter-spacing: .3em; text-transform: uppercase; color: var(--gold-soft); }
.report-cover .title { font-family: var(--serif); font-size: clamp(1.5rem, 2.6vw, 2.1rem); line-height: 1.18; }
.report-cover .stat-line { font-size: .8rem; color: var(--stone); border-top: 1px solid var(--ink-3); padding-top: 1rem; }

/* ---------- Quote / case rows ---------- */
.case { border-left: 3px solid var(--gold); padding: .4rem 0 .4rem 1.6rem; }
.case .org { font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--stone); margin-bottom: .5rem; }
.case p { font-family: var(--serif); font-size: 1.18rem; line-height: 1.45; }

/* ---------- Methodology steps ---------- */
.steps { counter-reset: step; display: grid; gap: 0; border-top: 1px solid var(--ink-3); }
.step { counter-increment: step; display: grid; grid-template-columns: 90px 220px 1fr; gap: 1.4rem; padding: 1.6rem 0; border-bottom: 1px solid var(--ink-3); align-items: baseline; }
.step::before { content: "0" counter(step); font-family: var(--serif); font-size: 1.9rem; color: var(--gold); }
.step h3 { font-size: 1.15rem; }
.step p { color: var(--stone); font-size: .95rem; }
@media (max-width: 760px) { .step { grid-template-columns: 60px 1fr; } .step p { grid-column: 2; } }

/* ---------- Diagnostic scale ---------- */
.scale { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--ink-3); border: 1px solid var(--ink-3); }
.scale .lvl { background: var(--ink-2); padding: 1.1rem 1rem; font-size: .8rem; letter-spacing: .04em; color: var(--stone); }
.scale .lvl b { display: block; color: var(--paper); font-family: var(--serif); font-size: 1rem; letter-spacing: 0; margin-bottom: .3rem; font-weight: 600; }
.scale .lvl:last-child b { color: var(--alert); filter: brightness(1.4); }

/* ---------- Forms ---------- */
form.inst { display: grid; gap: 1.1rem; max-width: 560px; }
form.inst label { font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--stone-2); display: grid; gap: .45rem; }
.dark form.inst label, .navy-band form.inst label { color: var(--stone); }
form.inst input, form.inst textarea, form.inst select {
  font: inherit; padding: .85rem 1rem; border: 1px solid var(--stone);
  background: var(--paper); color: var(--ink); width: 100%;
}
form.inst input:focus, form.inst textarea:focus { outline: 2px solid var(--gold); outline-offset: 1px; }
.form-note { font-size: .78rem; color: var(--stone); }
.fail-state { border: 1px solid var(--alert); background: color-mix(in srgb, var(--alert) 7%, var(--paper)); color: var(--alert); padding: 1rem 1.2rem; font-size: .92rem; display: none; }
.fail-state.show { display: block; }
.dark .fail-state { background: color-mix(in srgb, var(--alert) 16%, var(--ink)); color: #e8b3ae; }

/* ---------- Article / longform ---------- */
.article { max-width: 720px; margin: 0 auto; padding: 0 var(--pad); }
.article header { padding: var(--sec) 0 2.5rem; border-bottom: 1px solid var(--paper-2); margin-bottom: 2.5rem; }
.article .meta { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--stone); margin-top: 1.2rem; }
.article h2 { font-size: 1.65rem; margin: 2.6rem 0 1rem; }
.article p { margin-bottom: 1.25rem; color: var(--stone-2); font-size: 1.05rem; }
.article p:first-of-type { color: var(--ink); }
.article blockquote { font-family: var(--serif); font-size: 1.3rem; border-left: 3px solid var(--gold); padding-left: 1.4rem; margin: 2.2rem 0; }
.article ul, .article ol { margin: 0 0 1.25rem 1.3rem; color: var(--stone-2); }
.article li { margin-bottom: .5rem; }

/* ---------- Tables (dashboards, indices) ---------- */
table.inst { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.inst th { text-align: left; font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: var(--stone); padding: .8rem .9rem; border-bottom: 2px solid var(--ink-3); }
table.inst td { padding: .85rem .9rem; border-bottom: 1px solid color-mix(in srgb, var(--stone) 25%, transparent); font-variant-numeric: tabular-nums; }
table.inst .up { color: var(--alert); }
table.inst .down { color: var(--gold); }

/* ---------- Footer ---------- */
footer.site { background: var(--ink); color: var(--stone); font-size: .88rem; }
footer.site .cols {
  max-width: var(--max); margin: 0 auto; padding: 4rem var(--pad) 2.5rem;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 2.2rem;
}
@media (max-width: 900px) { footer.site .cols { grid-template-columns: 1fr 1fr; } }
footer.site h4 { font-size: .7rem; letter-spacing: .28em; text-transform: uppercase; color: var(--gold); margin-bottom: 1rem; font-weight: 600; }
footer.site ul { list-style: none; }
footer.site li { margin-bottom: .55rem; }
footer.site a { color: var(--stone); text-decoration: none; }
footer.site a:hover, footer.site a:focus-visible { color: var(--paper); }
footer.site .brandline { font-family: var(--serif); color: var(--paper); font-size: 1.15rem; margin-bottom: .8rem; }
footer.site .legalese {
  max-width: var(--max); margin: 0 auto; padding: 1.6rem var(--pad) 2.6rem;
  border-top: 1px solid var(--ink-3); font-size: .74rem; line-height: 1.9; color: var(--stone);
}
footer.site .legalese span::after { content: " · "; color: var(--ink-3); }
footer.site .legalese span:last-child::after { content: ""; }

/* ---------- Archive link + misc ---------- */
.tiny-label { font-size: .68rem; letter-spacing: .22em; text-transform: uppercase; color: var(--stone); }
.gold-rule { width: 64px; height: 3px; background: var(--gold); margin-bottom: 1.6rem; }
.img-frame { border: 1px solid color-mix(in srgb, var(--stone) 40%, transparent); padding: .6rem; background: var(--paper); }
.img-frame img { filter: saturate(.82) contrast(1.02); }
.img-frame figcaption { font-size: .75rem; color: var(--stone); padding-top: .55rem; letter-spacing: .04em; }