/* ============================================================
   Agentic AI Maturity Model — design system & layout
   ============================================================ */

:root {
  --bg: #0a0c11;
  --bg-1: #0e1117;
  --bg-2: #131720;
  --bg-3: #1a1f2b;
  --border: #232936;
  --border-soft: #1b202b;
  --text: #e7eaf1;
  --text-dim: #a3aabb;
  --text-faint: #6b7284;
  --accent: #8b7bff;
  --accent-bright: #a996ff;
  --accent-2: #2fd8d8;
  --accent-warn: #f0a94e;
  --accent-pink: #ff6fa5;
  --success: #3ecf8e;
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1180px;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --shadow-lg: 0 20px 60px -20px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body[data-theme="light"] {
  --bg: #f7f7fb;
  --bg-1: #ffffff;
  --bg-2: #f0f1f6;
  --bg-3: #e7e9f2;
  --border: #dcdfec;
  --border-soft: #e6e8f2;
  --text: #171a23;
  --text-dim: #4c5266;
  --text-faint: #7b8195;
  --shadow-lg: 0 20px 60px -20px rgba(30,30,60,0.15);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -0.02em; }
p { margin: 0; }
button { font-family: inherit; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.mono { font-family: var(--font-mono); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 600;
}

.section {
  padding: 96px 0;
  border-bottom: 1px solid var(--border-soft);
}
.section:last-of-type { border-bottom: none; }

.section-head {
  max-width: 760px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  margin-top: 10px;
}
.section-head p {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 17px;
}

/* ---------------- Nav ---------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border-soft);
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
  text-decoration: none;
}
.brand .mark {
  width: 22px; height: 22px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  font-size: 13.5px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  white-space: nowrap;
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--text); background: var(--bg-2); }
.theme-toggle {
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-dim);
  width: 34px; height: 34px;
  border-radius: 9px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--text); border-color: var(--accent); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  padding: 108px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-soft);
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
  opacity: .55;
}
body[data-theme="light"] .hero-bg { opacity: .35; }
.hero .wrap { position: relative; z-index: 1; }
.hero-inner { max-width: 780px; }
.hero h1 {
  font-size: clamp(34px, 5.4vw, 58px);
  line-height: 1.08;
  margin-top: 18px;
}
.hero .grad {
  background: linear-gradient(100deg, var(--accent-bright), var(--accent-2) 60%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-tagline {
  margin-top: 22px;
  font-size: 19px;
  color: var(--text-dim);
  max-width: 620px;
}
.hero-thesis {
  margin-top: 34px;
  padding: 20px 22px;
  border-left: 3px solid var(--accent);
  background: var(--bg-1);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 16.5px;
  color: var(--text);
  max-width: 640px;
}
.hero-actions {
  margin-top: 36px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s, box-shadow .15s, border-color .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  color: #0a0c11;
}
.btn-primary:hover { box-shadow: 0 8px 30px -8px rgba(139,123,255,0.55); }
.btn-ghost {
  background: var(--bg-1);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); }

.hero-stats {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 780px;
}
.hero-stats div {
  background: var(--bg-1);
  padding: 18px 20px;
}
.hero-stats .num {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--accent-bright);
  font-weight: 700;
}
.hero-stats .lbl {
  font-size: 12.5px;
  color: var(--text-faint);
  margin-top: 4px;
}

/* ---------------- Cards ---------------- */
.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 8px;
}
.rule-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.rule-card .idx {
  font-family: var(--font-mono);
  color: var(--accent-2);
  font-size: 12.5px;
}
.rule-card h4 { margin-top: 8px; font-size: 16px; }
.rule-card p { margin-top: 8px; color: var(--text-dim); font-size: 14.5px; }

.callout {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px dashed var(--accent-warn);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent-warn) 8%, transparent);
  font-size: 14.5px;
  color: var(--text);
}
.callout b { color: var(--accent-warn); }

/* ---------------- Challenges (dependency chain) ---------------- */
.challenge-list { margin-top: 8px; counter-reset: ch; }
.challenge {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--border-soft);
  cursor: pointer;
}
.challenge:first-child { border-top: none; }
.challenge .num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 20px;
  font-weight: 700;
}
.challenge h4 {
  font-size: 15.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.challenge .chev { color: var(--text-faint); transition: transform .2s; flex-shrink: 0; }
.challenge.open .chev { transform: rotate(90deg); }
.challenge .body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
  color: var(--text-dim);
  font-size: 14.5px;
}
.challenge.open .body { max-height: 200px; margin-top: 10px; }

/* ---------------- Stage ladder ---------------- */
.stage-ladder {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
.stage-pill {
  border: 1px solid var(--border);
  background: var(--bg-1);
  border-radius: var(--radius-sm);
  padding: 16px 12px;
  cursor: pointer;
  text-align: left;
  transition: border-color .15s, transform .15s, background .15s;
  position: relative;
}
.stage-pill:hover { transform: translateY(-2px); border-color: var(--accent); }
.stage-pill.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--bg-1));
}
.stage-pill .id {
  font-family: var(--font-mono);
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
}
.stage-pill .name {
  font-size: 14.5px;
  font-weight: 650;
  margin-top: 4px;
}
.stage-pill.aspirational {
  border-style: dashed;
  opacity: 0.82;
}
.stage-pill.aspirational .id { color: var(--accent-warn); }

.stage-detail {
  margin-top: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--bg-1);
}
.stage-detail-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.stage-detail-head .id {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent-2);
  font-weight: 700;
}
.stage-detail-head h3 { font-size: 24px; }
.stage-detail-head .tag {
  font-size: 13px;
  color: var(--text-faint);
}
.badge-aspirational {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-warn);
  border: 1px solid var(--accent-warn);
  padding: 3px 8px;
  border-radius: 20px;
}
.stage-def {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 15.5px;
  max-width: 760px;
}
.stage-meta-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.stage-meta-grid h5 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.stage-meta-grid p, .stage-meta-grid ul {
  font-size: 14.5px;
  color: var(--text);
  margin: 0;
  padding: 0;
}
.stage-meta-grid ul { list-style: none; }
.stage-meta-grid li {
  padding: 4px 0;
  color: var(--text-dim);
}
.stage-meta-grid li::before { content: "\201C"; color: var(--accent); margin-right: 4px; }
.buys-row {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.buys-box {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.buys-box.yes { background: color-mix(in srgb, var(--success) 10%, transparent); border: 1px solid color-mix(in srgb, var(--success) 35%, transparent); }
.buys-box.no { background: color-mix(in srgb, var(--accent-pink) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent-pink) 30%, transparent); }
.buys-box .lbl { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; display:block; }
.buys-box.yes .lbl { color: var(--success); }
.buys-box.no .lbl { color: var(--accent-pink); }

/* ---------------- Dimension cards ---------------- */
.dim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.dim-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  cursor: pointer;
  transition: border-color .15s, transform .15s;
}
.dim-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.dim-card .id {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}
.dim-card h4 { margin-top: 8px; font-size: 16.5px; }
.dim-card p { margin-top: 10px; color: var(--text-dim); font-size: 14px; }

.dim-detail {
  margin-top: 24px;
}
.dim-detail-inner {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  background: var(--bg-1);
}
.dim-detail-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.dim-detail-head .id { font-family: var(--font-mono); color: var(--accent); font-weight: 700; }
.dim-detail-head h3 { font-size: 23px; }
.dim-question {
  margin-top: 16px;
  font-style: italic;
  font-size: 16px;
  color: var(--accent-bright);
  border-left: 3px solid var(--accent-2);
  padding-left: 14px;
}
.dim-table {
  margin-top: 22px;
  display: grid;
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.dim-row {
  display: grid;
  grid-template-columns: 60px 1fr;
  background: var(--bg-1);
}
.dim-row .s {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--accent-2);
  padding: 12px 14px;
  background: var(--bg-2);
}
.dim-row .t {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-dim);
}
.dim-insight {
  margin-top: 20px;
  padding: 18px 20px;
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 10%, transparent), color-mix(in srgb, var(--accent-2) 8%, transparent));
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  border-left: 3px solid var(--accent);
}
.dim-insight .lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent-bright);
  display: block;
  margin-bottom: 8px;
}
.dim-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
}
.dim-nav button {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.dim-nav button:hover { color: var(--text); border-color: var(--accent); }

/* ---------------- Assessment tool ---------------- */
.assessment-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: start;
}
.assess-controls .dim-row-input {
  display: grid;
  grid-template-columns: 130px 1fr 30px;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--border-soft);
}
.assess-controls .dim-row-input:first-child { border-top: none; }
.assess-controls .dlabel {
  font-size: 13px;
  color: var(--text-dim);
}
.assess-controls .dlabel .id { color: var(--accent); font-family: var(--font-mono); font-weight: 700; margin-right: 6px; }
.assess-controls input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  outline: none;
}
.assess-controls input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--accent-bright);
  cursor: pointer;
}
.assess-controls .val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-2);
  text-align: right;
}
.assess-side {
  position: sticky;
  top: 90px;
}
.radar-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-1);
  padding: 20px;
}
.assess-summary {
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-2);
  border: 1px solid var(--border);
  font-size: 14px;
}
.assess-summary .lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-faint);
}
.assess-summary .lowest {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-warn);
  margin-top: 6px;
}
.assess-presets {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.preset-btn {
  font-size: 12.5px;
  padding: 7px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-dim);
  cursor: pointer;
}
.preset-btn:hover { border-color: var(--accent); color: var(--text); }

/* ---------------- Grid / heatmap ---------------- */
.heatmap-scroll { overflow-x: auto; }
.heatmap {
  border-collapse: collapse;
  width: 100%;
  min-width: 780px;
  font-size: 13px;
}
.heatmap th, .heatmap td {
  border: 1px solid var(--border-soft);
  padding: 0;
  text-align: center;
}
.heatmap thead th {
  padding: 10px 4px;
  font-family: var(--font-mono);
  color: var(--accent-2);
  background: var(--bg-2);
  font-size: 12px;
}
.heatmap tbody th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--text-dim);
  background: var(--bg-1);
  white-space: nowrap;
  font-size: 12.5px;
}
.heatmap td {
  width: 60px; height: 38px;
  cursor: default;
}
.heatmap td .cell {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
}

/* ---------------- Three-column movement panel ---------------- */
.movement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.movement-col h3 {
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.movement-col h3 .dot { width: 9px; height: 9px; border-radius: 50%; }
.movement-list { margin-top: 16px; display: flex; flex-direction: column; gap: 14px; }
.movement-item {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-1);
}
.movement-item .t { font-size: 13.5px; font-weight: 650; }
.movement-item .b { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.movement-item .rank { font-family: var(--font-mono); color: var(--text-faint); font-size: 11px; margin-right: 6px; }

.regression-strip {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.regression-strip .card h4 { font-size: 14.5px; color: var(--accent-pink); }
.regression-strip .card p { margin-top: 8px; font-size: 13.5px; color: var(--text-dim); }

/* ---------------- Capability frontier ---------------- */
.frontier-diagram {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.frontier-diagram > div { padding: 26px; }
.frontier-diagram .a { background: color-mix(in srgb, var(--accent) 14%, var(--bg-1)); }
.frontier-diagram .b { background: color-mix(in srgb, var(--accent-2) 12%, var(--bg-1)); border-left: 1px solid var(--border); }
.frontier-diagram h4 { font-size: 15px; }
.frontier-diagram p { margin-top: 8px; font-size: 13.5px; color: var(--text-dim); }
.frontier-gap-box {
  margin-top: 24px;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}
.frontier-gap-box h4 { color: var(--accent-bright); font-size: 16px; }
.frontier-gap-box p { margin-top: 10px; font-size: 14.5px; color: var(--text); }

.frontier-items {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.frontier-items .card { padding: 18px; }
.frontier-items h4 { font-size: 14px; }
.frontier-items p { margin-top: 8px; font-size: 13px; color: var(--text-dim); }

.frontier-strengths {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.frontier-strengths .card {
  border-color: color-mix(in srgb, var(--success) 40%, var(--border));
  background: color-mix(in srgb, var(--success) 6%, var(--bg-1));
  font-size: 13.5px;
}

/* ---------------- Segments (tabs) ---------------- */
.tabs { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.tab-btn {
  padding: 9px 16px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-1);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
}
.tab-btn.active {
  color: var(--bg);
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  border-color: transparent;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.sector-list { display: flex; flex-direction: column; gap: 14px; }
.sector-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  background: var(--bg-1);
}
.sector-item h4 { font-size: 15px; }
.sector-item .row { display: grid; grid-template-columns: 100px 1fr; gap: 10px; margin-top: 10px; font-size: 13.5px; }
.sector-item .row .k { color: var(--text-faint); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; padding-top: 2px; }
.sector-item .row .v { color: var(--text-dim); }

.posture-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.posture-grid .card h4 { font-size: 14.5px; }
.posture-grid .card .stage-tag {
  display: inline-block; margin-top: 8px;
  font-family: var(--font-mono); font-size: 11px; color: var(--accent-2);
  background: var(--bg-2); border: 1px solid var(--border);
  padding: 3px 8px; border-radius: 20px;
}
.posture-grid .card p { margin-top: 10px; font-size: 13.5px; color: var(--text-dim); }

/* ---------------- MoSCoW builder ---------------- */
.moscow-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.moscow-col h3 { font-size: 14.5px; display: flex; align-items: center; justify-content: space-between; }
.moscow-col .count { font-family: var(--font-mono); font-size: 12px; color: var(--text-faint); }
.moscow-items { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.moscow-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-1);
  font-size: 13.5px;
  cursor: pointer;
}
.moscow-item input { margin-top: 3px; accent-color: var(--accent); flex-shrink: 0; }
.moscow-item.checked { border-color: var(--success); background: color-mix(in srgb, var(--success) 6%, var(--bg-1)); color: var(--text-dim); }
.moscow-score {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.moscow-score .card { text-align: center; }
.moscow-score .pct { font-family: var(--font-mono); font-size: 30px; font-weight: 700; color: var(--accent-bright); }
.moscow-score .lbl { font-size: 12px; color: var(--text-faint); margin-top: 6px; text-transform: uppercase; letter-spacing: .06em; }

/* ---------------- History / versioning ---------------- */
.history-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.history-table th, .history-table td {
  text-align: left;
  padding: 14px 16px;
  border-top: 1px solid var(--border-soft);
  font-size: 13.5px;
  vertical-align: top;
}
.history-table th { color: var(--text-faint); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; font-family: var(--font-mono); border-top: none; }
.history-table td.before { color: var(--text-faint); text-decoration: line-through; text-decoration-color: var(--border); }
.history-table td.after { color: var(--accent-bright); font-weight: 550; }
.history-table td.why { color: var(--text-dim); }

.evidence-list { margin-top: 8px; display: flex; flex-direction: column; gap: 10px; }
.evidence-item {
  display: flex; gap: 12px;
  padding: 12px 14px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 13.5px;
  color: var(--text-dim);
}
.evidence-item::before { content: "\26A0"; color: var(--accent-warn); flex-shrink: 0; }

/* ---------------- Footer ---------------- */
footer {
  padding: 56px 0 80px;
  color: var(--text-faint);
  font-size: 13.5px;
}
footer .foot-top {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
  padding-bottom: 28px; margin-bottom: 28px;
  border-bottom: 1px solid var(--border-soft);
}
footer a { color: var(--text-dim); text-decoration: none; }
footer a:hover { color: var(--accent-bright); }
footer .disclaimer { max-width: 720px; line-height: 1.7; }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .assessment-layout { grid-template-columns: 1fr; }
  .assess-side { position: static; }
  .movement-grid { grid-template-columns: 1fr; }
  .regression-strip { grid-template-columns: 1fr; }
  .frontier-diagram { grid-template-columns: 1fr; }
  .frontier-diagram .b { border-left: none; border-top: 1px solid var(--border); }
  .frontier-strengths { grid-template-columns: 1fr; }
  .moscow-cols { grid-template-columns: 1fr; }
  .buys-row { grid-template-columns: 1fr; }
  .moscow-score { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .section { padding: 64px 0; }
  .stage-ladder { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}