/* ==========================================================================
   Domondon Dominium™ — design system
   Doctrine-grade editorial: deep ink, parchment, lamp gold. Zero JS.
   Shares type DNA with Nurse AI OS (Fraunces + Source Sans 3), darker register.
   ========================================================================== */

:root {
  --ink-950: #0d1321;
  --ink-900: #131c2e;
  --ink-800: #1d2a42;
  --ink-700: #2c3d5c;
  --ink-600: #46587a;
  --ink-400: #8393ad;
  --parch-50: #faf7f0;
  --parch-100: #f3eee1;
  --parch-200: #e8e0cc;
  --gold-400: #d9b64a;
  --gold-500: #c9a227;
  --gold-600: #a98618;
  --teal-500: #2a7f7f;
  --teal-600: #1f6363;
  --red-700: #a33a3a;
  --white: #ffffff;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Source Sans 3", "Segoe UI", Helvetica, Arial, sans-serif;
  --shadow-sm: 0 1px 3px rgba(13, 19, 33, .12);
  --shadow-md: 0 6px 24px rgba(13, 19, 33, .14);
  --maxw: 62rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.06rem;
  line-height: 1.65;
  color: var(--ink-800);
  background: var(--parch-50);
}

h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink-900); line-height: 1.18; }
h1 { font-size: clamp(2.1rem, 5vw, 3.3rem); font-weight: 700; margin: 0 0 1rem; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); font-weight: 700; margin: 0 0 .9rem; }
h3 { font-size: 1.25rem; font-weight: 600; margin: 0 0 .5rem; }
p { margin: 0 0 1rem; }
a { color: var(--teal-600); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--gold-600); }
strong { color: var(--ink-900); }
code, .mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: .92em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.4rem; }
.narrow { max-width: 46rem; }

/* ---------- header / nav ---------- */
.site-head {
  background: var(--ink-950);
  border-bottom: 3px solid var(--gold-500);
  position: sticky; top: 0; z-index: 50;
}
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-top: .7rem; padding-bottom: .7rem; flex-wrap: wrap;
}
.brand {
  font-family: var(--font-display); font-weight: 700; font-size: 1.12rem;
  color: var(--parch-50); text-decoration: none; letter-spacing: .02em;
}
.brand .tm { font-size: .6em; vertical-align: super; color: var(--gold-400); }
.brand:hover { color: var(--gold-400); }
nav.main { display: flex; gap: 1.1rem; flex-wrap: wrap; }
nav.main a {
  color: var(--parch-100); text-decoration: none; font-size: .95rem; font-weight: 600;
  padding: .2rem 0; border-bottom: 2px solid transparent;
}
nav.main a:hover, nav.main a[aria-current="page"] { color: var(--gold-400); border-bottom-color: var(--gold-500); }

/* ---------- hero ---------- */
.hero { background: linear-gradient(160deg, var(--ink-950) 0%, var(--ink-800) 100%); color: var(--parch-50); padding: 4.5rem 0 3.8rem; }
.hero h1 { color: var(--white); }
.hero .kicker { color: var(--gold-400); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: .82rem; margin-bottom: 1rem; }
.hero .lede { font-size: 1.22rem; color: var(--parch-100); max-width: 44rem; }
.hero .credo { font-family: var(--font-display); font-style: italic; color: var(--gold-400); font-size: 1.08rem; margin-top: 1.6rem; }
.page-hero { padding: 3.2rem 0 2.6rem; }

/* ---------- sections ---------- */
section { padding: 3.2rem 0; }
section.alt { background: var(--parch-100); }
section.dark { background: var(--ink-900); color: var(--parch-100); }
section.dark h2, section.dark h3 { color: var(--white); }
section.dark a { color: var(--gold-400); }
section.dark strong, .hero strong { color: var(--white); }
section.dark blockquote.pull { background: var(--ink-800); color: var(--parch-100); }
section.dark blockquote.pull footer { color: var(--ink-400); }
section.dark a.btn { color: var(--ink-950); }
section.dark a.btn:hover { color: var(--ink-950); }
section.dark a.btn.ghost, .hero a.btn.ghost { color: var(--parch-100); }
section.dark a.btn.ghost:hover, .hero a.btn.ghost:hover { color: var(--gold-400); }
.kicker { color: var(--gold-600); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: .8rem; margin: 0 0 .6rem; }
section.dark .kicker { color: var(--gold-400); }

/* ---------- components ---------- */
.grid { display: grid; gap: 1.2rem; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border-radius: 10px; box-shadow: var(--shadow-sm);
  padding: 1.3rem 1.25rem; border-top: 4px solid var(--gold-500);
}
.card h3 { font-size: 1.08rem; }
.card p { font-size: .95rem; color: var(--ink-600); margin: .35rem 0 0; }
.card .num { font-family: var(--font-display); font-weight: 700; color: var(--gold-600); font-size: .9rem; }
.card.teal { border-top-color: var(--teal-500); }
.card.ink { border-top-color: var(--ink-700); }

blockquote.pull {
  border-left: 4px solid var(--gold-500); background: var(--white);
  margin: 1.6rem 0; padding: 1.1rem 1.4rem; border-radius: 0 10px 10px 0;
  font-family: var(--font-display); font-size: 1.18rem; color: var(--ink-900);
  box-shadow: var(--shadow-sm);
}
blockquote.pull footer { font-family: var(--font-body); font-size: .85rem; color: var(--ink-600); margin-top: .5rem; }

.boundary {
  border: 2px solid var(--red-700); background: #fbe4e4; color: var(--red-700);
  border-radius: 10px; padding: 1rem 1.3rem; font-weight: 600; margin: 1.4rem 0;
}

table { width: 100%; border-collapse: collapse; background: var(--white); box-shadow: var(--shadow-sm); border-radius: 10px; overflow: hidden; margin: 1.4rem 0; font-size: .96rem; }
th { background: var(--ink-900); color: var(--parch-100); text-align: left; padding: .65rem .9rem; font-weight: 600; }
td { padding: .6rem .9rem; border-top: 1px solid var(--parch-200); vertical-align: top; }
tr:nth-child(even) td { background: var(--parch-50); }
.table-scroll { overflow-x: auto; }

ol.principles { counter-reset: p; list-style: none; padding: 0; margin: 1.5rem 0; display: grid; gap: .7rem; }
ol.principles li {
  counter-increment: p; background: var(--white); border-radius: 8px; box-shadow: var(--shadow-sm);
  padding: .85rem 1.1rem .85rem 3.4rem; position: relative; font-weight: 600; color: var(--ink-900);
}
ol.principles li::before {
  content: counter(p); position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-weight: 700; color: var(--gold-600); font-size: 1.25rem;
}
ol.principles li small { display: block; font-weight: 400; color: var(--ink-600); }
section.dark ol.principles li { background: var(--ink-800); color: var(--parch-100); }
section.dark ol.principles li::before { color: var(--gold-400); }
section.dark ol.principles li small { color: var(--ink-400); }

.loop {
  font-family: "SFMono-Regular", Consolas, monospace; font-size: .92rem;
  background: var(--ink-950); color: var(--parch-100); border-radius: 10px;
  padding: 1.3rem 1.5rem; overflow-x: auto; line-height: 1.9; margin: 1.4rem 0;
  border-left: 4px solid var(--gold-500);
}
.loop b { color: var(--gold-400); font-weight: 600; }

.btn {
  display: inline-block; background: var(--gold-500); color: var(--ink-950);
  font-weight: 700; text-decoration: none; padding: .75rem 1.5rem; border-radius: 8px;
  box-shadow: var(--shadow-sm); font-size: 1rem;
}
.btn:hover { background: var(--gold-400); color: var(--ink-950); }
.btn.ghost { background: transparent; color: var(--parch-100); border: 2px solid var(--gold-500); }
.btn.ghost:hover { color: var(--gold-400); }
.btn-row { display: flex; gap: .9rem; flex-wrap: wrap; margin-top: 1.6rem; }

.steps { border-left: 3px solid var(--gold-500); padding-left: 1.4rem; display: grid; gap: 1.05rem; margin: 1.5rem 0; }
.steps .step strong { color: var(--ink-900); font-family: var(--font-display); }
.steps .step p { margin: .15rem 0 0; color: var(--ink-600); font-size: .96rem; }

.rights { display: grid; gap: 1rem; margin: 1.5rem 0; }
.right-card {
  background: var(--white); border-radius: 10px; box-shadow: var(--shadow-sm);
  padding: 1.15rem 1.3rem; border-left: 5px solid var(--teal-500);
}
.right-card h3 { color: var(--teal-600); font-size: 1.02rem; letter-spacing: .04em; }
.right-card p { font-size: .96rem; margin: .3rem 0 0; }
.right-card p.rule { color: var(--ink-600); font-style: italic; font-size: .9rem; }

.invariant {
  text-align: center; font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 1.8rem); color: var(--white);
  padding: 2.2rem 1rem; background: var(--ink-950); border-radius: 12px;
  border: 2px solid var(--gold-500); margin: 2rem 0;
}

.tiers span { display: inline-block; border-radius: 8px; padding: .3rem .8rem; font-weight: 700; font-size: .9rem; margin: 0 .4rem .5rem 0; }
.tier-green { background: #e5f3e6; color: #2c6e31; }
.tier-yellow { background: #fdf3d7; color: #8a6420; }
.tier-red { background: #fbe4e4; color: var(--red-700); }

/* ---------- aha section ---------- */
section.aha {
  background: linear-gradient(180deg, var(--parch-100), var(--parch-50));
  border-top: 3px solid var(--gold-500);
  padding: 3.4rem 0;
}
.aha-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 1.6rem; }
@media (max-width: 720px) { .aha-grid { grid-template-columns: 1fr; } }
.say {
  background: var(--white); border-radius: 10px; box-shadow: var(--shadow-sm);
  padding: 1.15rem 1.3rem 1.15rem 2.6rem; position: relative;
  font-family: var(--font-display); font-style: italic; font-size: 1.04rem;
  color: var(--ink-800); line-height: 1.5;
}
.say::before {
  content: "\201C"; position: absolute; left: .85rem; top: .55rem;
  font-family: var(--font-display); font-size: 2rem; color: var(--gold-500); font-style: normal;
}
.aha .after {
  margin-top: 1.6rem; font-size: .95rem; color: var(--ink-600); max-width: 46rem;
}

/* ---------- footer ---------- */
.site-foot { background: var(--ink-950); color: var(--ink-400); padding: 2.6rem 0 2.2rem; font-size: .92rem; }
.site-foot .credo { font-family: var(--font-display); font-style: italic; color: var(--gold-400); font-size: 1.05rem; margin-bottom: 1rem; }
.site-foot a { color: var(--parch-100); }
.site-foot nav { display: flex; gap: 1.1rem; flex-wrap: wrap; margin: .8rem 0 1rem; }
.site-foot nav a { text-decoration: none; font-weight: 600; }
.site-foot nav a:hover { color: var(--gold-400); }

@media print {
  .site-head, .site-foot, .btn, .btn-row { display: none; }
  body { background: #fff; }
}