/* ============================================================
   Sovereignty Stack — site styles
   Palette drawn from the Owning AI cover (brick edition):
   dark charcoal ground, yellow title accents, and one signature
   brick color per stack layer — cyan / red / green / magenta / gray.
   ============================================================ */

:root {
  --bg: #14181d;
  --bg-raise: #1a2127;
  --panel: #1e272e;
  --panel-edge: #2b3640;
  --ink: #f0ece1;
  --ink-dim: #b7c0c6;
  --muted: #8b979f;
  --teal: #35b8c8;
  --teal-bright: #5fd2e0;
  --teal-deep: #1f6b75;
  --yellow: #f2c318;
  --yellow-bright: #ffd84a;
  --warn: #d9a05b;
  /* one brick per layer, matching the cover */
  --layer-gov: #35c5d8;   /* cyan  — governance   */
  --layer-app: #e2554a;   /* red   — applications */
  --layer-mod: #58c14a;   /* green — models       */
  --layer-dat: #c95fc3;   /* magenta — data       */
  --layer-com: #a8b2b9;   /* gray  — compute      */
  --max-w: 1080px;
  --radius: 10px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--teal-deep); color: var(--ink); }

a { color: var(--teal-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- type ---------- */

h1, h2, h3 {
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--ink);
}

h1 { font-size: clamp(2.6rem, 6.5vw, 4.4rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); margin-bottom: 0.6em; }
h3 { font-size: 1.15rem; margin-bottom: 0.4em; }

.kicker {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 1em;
}

.lede { font-size: 1.15rem; color: var(--ink-dim); max-width: 46em; }

/* ---------- header / nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 24, 29, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--panel-edge);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand svg { display: block; }

.nav { display: flex; align-items: center; gap: 26px; }
.nav a {
  color: var(--ink-dim);
  font-size: 0.92rem;
  font-weight: 600;
}
.nav a:hover { color: var(--ink); text-decoration: none; }
.nav .btn { color: var(--bg); }

@media (max-width: 720px) {
  .nav a:not(.btn) { display: none; }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--yellow);
  color: #14181d;
}
.btn-primary:hover { background: var(--yellow-bright); box-shadow: 0 6px 24px rgba(242, 195, 24, 0.25); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--panel-edge);
}
.btn-ghost:hover { border-color: var(--yellow); color: var(--yellow-bright); }

.btn-lg { padding: 15px 34px; font-size: 1.05rem; }

/* ---------- hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--panel-edge);
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(63, 169, 160, 0.08), transparent 60%),
    var(--bg);
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  padding-top: 88px;
  padding-bottom: 88px;
}

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; padding-top: 56px; padding-bottom: 56px; }
  .hero-art { order: -1; max-width: 320px; margin: 0 auto; }
}

.hero h1 .accent { color: var(--yellow); }

.hero .sub {
  font-size: 1.22rem;
  color: var(--ink-dim);
  margin: 22px 0 10px;
  max-width: 34em;
}

.hero .thesis {
  font-size: 1.02rem;
  color: var(--muted);
  margin-bottom: 34px;
  max-width: 36em;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-note { margin-top: 18px; font-size: 0.85rem; color: var(--muted); }

.hero-art svg { width: 100%; height: auto; display: block; }

.float { animation: float 7s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@media (prefers-reduced-motion: reduce) {
  .float { animation: none; }
}

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

section { padding: 88px 0; }
section.tint { background: var(--bg-raise); border-top: 1px solid var(--panel-edge); border-bottom: 1px solid var(--panel-edge); }

@media (max-width: 720px) { section { padding: 60px 0; } }

/* ---------- the stack diagram / layers ---------- */

.layers {
  display: grid;
  gap: 14px;
  margin-top: 40px;
  counter-reset: layer 6;
}

.layer {
  --lc: var(--teal);
  counter-increment: layer -1;
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  align-items: start;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-left: 4px solid var(--lc);
  border-radius: var(--radius);
  padding: 22px 26px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.layer:hover { border-color: var(--lc); transform: translateX(4px); }

/* one brick color per layer, matching the cover */
.layers .layer:nth-child(1) { --lc: var(--layer-gov); }
.layers .layer:nth-child(2) { --lc: var(--layer-app); }
.layers .layer:nth-child(3) { --lc: var(--layer-mod); }
.layers .layer:nth-child(4) { --lc: var(--layer-dat); }
.layers .layer:nth-child(5) { --lc: var(--layer-com); }

/* brick studs, top right */
.layer::after {
  content: "";
  position: absolute;
  top: 14px;
  right: 18px;
  width: 58px;
  height: 10px;
  background-image: radial-gradient(circle at 5px 5px, var(--lc) 3.5px, transparent 4px);
  background-size: 14px 10px;
  background-repeat: repeat-x;
  opacity: 0.55;
}

.layer .num {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--lc);
  line-height: 1.1;
}
.layer .num::before { content: "0" counter(layer); }

.layer p { color: var(--ink-dim); font-size: 0.97rem; }

/* ---------- problem section ---------- */

.pull {
  border-left: 3px solid var(--yellow);
  padding: 6px 0 6px 26px;
  margin: 36px 0;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  max-width: 30em;
}
.pull .dim { color: var(--muted); font-weight: 600; }

.prose { max-width: 46em; color: var(--ink-dim); }
.prose p + p { margin-top: 1em; }
.prose strong { color: var(--ink); }

/* ---------- book section ---------- */

.book-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 860px) {
  .book-grid { grid-template-columns: 1fr; }
  .book-cover { max-width: 260px; margin: 0 auto; }
}

.book-cover {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--panel-edge);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}
.book-cover svg { display: block; width: 100%; height: auto; }

.checklist { list-style: none; margin: 26px 0 34px; }
.checklist li {
  position: relative;
  padding-left: 34px;
  margin-bottom: 14px;
  color: var(--ink-dim);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  border: 2px solid var(--teal);
  border-radius: 3px;
}
.checklist li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  width: 7px;
  height: 4px;
  border-left: 2px solid var(--teal-bright);
  border-bottom: 2px solid var(--teal-bright);
  transform: rotate(-45deg);
}
.checklist strong { color: var(--ink); }

/* ---------- testimonial ---------- */

.testimonial {
  max-width: 50em;
  margin: 0 auto;
  text-align: center;
}
.testimonial blockquote {
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}
.testimonial blockquote::before { content: "\201C"; color: var(--teal); }
.testimonial blockquote::after { content: "\201D"; color: var(--teal); }
.testimonial cite {
  display: block;
  margin-top: 22px;
  font-style: normal;
  color: var(--muted);
  font-size: 0.95rem;
}
.testimonial cite strong { color: var(--teal-bright); }

/* ---------- assessment teaser ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }

.stat-row { display: flex; gap: 40px; margin: 28px 0 34px; }
.stat .n { font-size: 2.2rem; font-weight: 800; color: var(--yellow); line-height: 1; }
.stat .l { font-size: 0.85rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; margin-top: 6px; }

/* ---------- consulting cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 44px;
}
@media (max-width: 860px) { .cards { grid-template-columns: 1fr; } }

.card {
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--teal); transform: translateY(-3px); }

.card .icon { margin-bottom: 18px; }
.card h3 { font-size: 1.18rem; }
.card .who {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-bright);
  margin-bottom: 14px;
}
.card p { color: var(--ink-dim); font-size: 0.95rem; flex: 1; }
.card .card-cta { margin-top: 22px; font-weight: 700; font-size: 0.92rem; }

/* ---------- about ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------- final CTA ---------- */

.final-cta { text-align: center; }
.final-cta h2 { max-width: 22em; margin-left: auto; margin-right: auto; }
.final-cta .lede { margin: 18px auto 36px; }
.final-cta .hero-ctas { justify-content: center; }

/* ---------- newsletter signup (SendFox) ---------- */

.signup {
  max-width: 560px;
}
.signup .sf-fields {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}
@media (max-width: 560px) { .signup .sf-fields { flex-direction: column; } }

.signup input[type="text"],
.signup input[type="email"] {
  flex: 1;
  padding: 13px 16px;
  background: var(--bg);
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  color: var(--ink);
  font-size: 0.98rem;
  font-family: inherit;
  min-width: 0;
}
.signup input::placeholder { color: var(--muted); }
.signup input:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(63, 169, 160, 0.18);
}
.signup .btn { white-space: nowrap; }
.signup .sf-note { margin-top: 12px; font-size: 0.82rem; color: var(--muted); }

.sf-consent,
.sendfox-form .sf-consent {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-top: 14px;
  font-size: 0.88rem;
  color: var(--ink-dim);
  cursor: pointer;
}
.sf-consent input[type="checkbox"] {
  margin-top: 4px;
  width: 15px;
  height: 15px;
  accent-color: var(--teal);
  flex-shrink: 0;
}

.signup.centered { margin-left: auto; margin-right: auto; }

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

.site-footer {
  border-top: 1px solid var(--panel-edge);
  padding: 44px 0;
  color: var(--muted);
  font-size: 0.88rem;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}
.site-footer nav { display: flex; gap: 22px; }
.site-footer a { color: var(--ink-dim); }

/* ============================================================
   Assessment page
   ============================================================ */

.assess-intro { padding: 64px 0 24px; }
.assess-intro .lede { margin-top: 14px; }

.scale-key {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 28px 0 8px;
  padding: 18px 22px;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--ink-dim);
}
.scale-key b { color: var(--teal-bright); }

.assess-form { padding-bottom: 40px; }

.layer-block {
  --lc: var(--teal);
  margin: 44px 0;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-top: 4px solid var(--lc);
  border-radius: var(--radius);
  overflow: hidden;
}

/* one brick color per layer, matching the cover */
#block-compute      { --lc: var(--layer-com); }
#block-data         { --lc: var(--layer-dat); }
#block-models       { --lc: var(--layer-mod); }
#block-applications { --lc: var(--layer-app); }
#block-governance   { --lc: var(--layer-gov); }

.layer-block header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 22px 28px;
  background: var(--bg-raise);
  border-bottom: 1px solid var(--panel-edge);
}
.layer-block header .ln {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lc);
  white-space: nowrap;
}
.layer-block header h2 { font-size: 1.3rem; margin: 0; }

.q {
  padding: 22px 28px;
  border-bottom: 1px solid var(--panel-edge);
}
.q:last-child { border-bottom: none; }

.q .q-text { color: var(--ink-dim); margin-bottom: 14px; font-size: 0.98rem; }

.q .opts { display: flex; gap: 8px; }
.q .opts label {
  flex: 1;
  max-width: 72px;
  text-align: center;
  padding: 9px 0;
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  transition: all 0.1s ease;
}
.q .opts label:hover { border-color: var(--lc); color: var(--ink); }
.q .opts input { position: absolute; opacity: 0; pointer-events: none; }
.q .opts input:checked + span { color: var(--bg); }
.q .opts label:has(input:checked) {
  background: var(--lc);
  border-color: var(--lc);
  color: #14181d;
}
.q .opts label:has(input:focus-visible) { outline: 2px solid var(--lc); outline-offset: 2px; }

.assess-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin: 36px 0 12px;
}
.assess-progress { color: var(--muted); font-size: 0.92rem; }

/* ---------- results ---------- */

#results { display: none; padding: 24px 0 80px; }
#results.visible { display: block; }

.results-panel {
  background: var(--panel);
  border: 1px solid var(--teal-deep);
  border-radius: var(--radius);
  padding: 40px;
}
@media (max-width: 720px) { .results-panel { padding: 26px 20px; } }

.score-bars { margin: 34px 0; display: grid; gap: 16px; }

.score-bar { --lc: var(--teal); display: grid; grid-template-columns: 190px 1fr 70px; gap: 16px; align-items: center; }
@media (max-width: 640px) { .score-bar { grid-template-columns: 1fr; gap: 6px; } }

.score-bar .sb-label { font-weight: 700; font-size: 0.95rem; }

/* one brick per point: 25 segments, filled in the layer's color */
.score-bar .sb-track {
  display: flex;
  gap: 3px;
  height: 16px;
}
.score-bar .seg {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--panel-edge);
  border-radius: 3px;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.score-bar .seg.on {
  background: var(--lc);
  border-color: var(--lc);
}
.score-bar .sb-val { font-weight: 800; font-size: 0.95rem; color: var(--ink-dim); text-align: right; }

.score-bar.weakest .sb-label::after {
  content: " — weakest";
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.verdict {
  border-left: 3px solid var(--warn);
  padding: 4px 0 4px 22px;
  margin: 30px 0;
  color: var(--ink-dim);
}
.verdict strong { color: var(--ink); }

.results-cta {
  margin-top: 36px;
  padding-top: 30px;
  border-top: 1px solid var(--panel-edge);
}
.results-cta p { color: var(--ink-dim); max-width: 42em; margin-bottom: 22px; }