/* =================================================================
   Leadership Architecture — Main Stylesheet (refined)
   Built on the official tokens.css
   ================================================================= */

/* ----- Reset / base ----- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  line-height: var(--leading-body);
  color: var(--color-on-surface);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
::selection { background: rgba(0,106,97,0.18); }
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; padding: 0; color: inherit; }
em, i { font-style: normal; font-weight: 500; }

/* ----- Layout helpers ----- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}
.container-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.section          { padding: 120px 0; }
.section--tight   { padding: 80px 0; }
.section--xl      { padding: 160px 0; }

.bg-surface       { background: var(--color-surface); }
.bg-surface-low   { background: var(--color-surface-low); }
.bg-white         { background: var(--color-white); }
.bg-dark {
  background: var(--color-primary-container);
  color: var(--color-on-inverse);
  position: relative;
  overflow: hidden;
}

/* ----- Typography ----- */
.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--text-eyebrow);
  font-weight: 700;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--color-action);
  display: inline-block;
}
.eyebrow.muted { color: var(--color-on-muted); }
.eyebrow.on-dark { color: var(--color-on-inverse-muted); }

.lede {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-on-muted);
  max-width: 560px;
  text-wrap: pretty;
  margin: 0;
}

.h2-display {
  font-family: var(--font-serif);
  font-size: clamp(34px, 3.6vw, 48px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-primary-container);
  margin: 0;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  font-weight: 500;
  border-radius: var(--radius-element);
  padding: 14px 20px;
  text-decoration: none;
  transition: opacity 0.15s, box-shadow 0.15s, background-color 0.15s;
  cursor: pointer;
}
.btn-action {
  background: var(--color-action);
  color: var(--color-on-action);
}
.btn-action:hover { opacity: 0.9; }

.btn-primary {
  background: linear-gradient(160deg, var(--color-primary-container), var(--color-primary));
  color: #fff;
  box-shadow: var(--shadow-executive-md);
}
.btn-primary:hover { opacity: 0.92; }

.btn-ghost {
  background: transparent;
  color: var(--color-on-muted);
  padding: 14px 6px;
}
.btn-ghost.on-dark { color: var(--color-on-inverse); }
.btn-ghost:hover { color: var(--color-action); }

.arrow { display: inline-block; transition: transform 200ms ease; }
.btn-ghost:hover .arrow,
.link-arrow:hover .arrow { transform: translateX(3px); }

.link-arrow {
  font-family: var(--font-sans);
  font-size: var(--text-body-md);
  font-weight: 500;
  color: var(--color-action);
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
}
.link-arrow:hover { color: #005951; }

/* ----- Nav (glass) ----- */
.nav {
  position: sticky; top: 0; z-index: var(--z-overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(247, 249, 251, 0.7);
  border-bottom: 1px solid rgba(198, 198, 205, 0.15);
  transition: background-color 200ms ease, border-color 200ms ease;
}
.nav.over-dark {
  background: rgba(19, 27, 46, 0.78);
  border-bottom-color: rgba(226, 232, 240, 0.10);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-3) var(--space-8);
  max-width: 1280px; margin: 0 auto;
}
.nav-logo { display: flex; align-items: center; gap: 0; }
.nav-logo svg { display: block; }

.nav-links {
  display: flex; gap: var(--space-8); align-items: center;
}
.nav-links a {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--color-on-muted);
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--color-on-surface); }
.nav.over-dark .nav-links a { color: var(--color-on-inverse); opacity: 0.85; }
.nav.over-dark .nav-links a:hover { color: var(--color-on-inverse); opacity: 1; }

.nav-right { display: flex; align-items: center; gap: var(--space-6); }

/* Hamburger button — desktop default is hidden; mobile breakpoint reveals it */
.nav-burger { display: none; }
.lang-toggle {
  display: flex; gap: var(--space-2); align-items: center;
  font-family: var(--font-sans); font-size: var(--text-label);
  color: var(--color-on-muted); letter-spacing: 0.05em;
  font-weight: 700; text-transform: uppercase;
}
.lang-toggle button { padding: 4px 6px; color: inherit; opacity: 0.6; transition: opacity 0.15s; }
.lang-toggle button.active { opacity: 1; color: var(--color-on-surface); }
.nav.over-dark .lang-toggle { color: var(--color-on-inverse); opacity: 1; }
.nav.over-dark .lang-toggle button { opacity: 0.7; }
.nav.over-dark .lang-toggle button.active { opacity: 1; color: var(--color-on-inverse); }

/* ----- Hero ----- */
.hero {
  padding: 112px var(--space-8) 128px;
  background: var(--color-primary-container);
  color: var(--color-on-inverse);
  position: relative; overflow: hidden;
}
.hero::before {
  /* Editorial grid backdrop */
  content: '';
  position: absolute; inset: 0;
  opacity: 0.07;
  background-image:
    linear-gradient(var(--color-on-inverse-muted) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-on-inverse-muted) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, black 30%, transparent 80%);
          mask-image: radial-gradient(ellipse at 70% 40%, black 30%, transparent 80%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute; top: 15%; right: -10%;
  width: 540px; height: 540px;
  background: radial-gradient(circle, rgba(0,106,97,0.18) 0%, transparent 60%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 80px;
  align-items: center;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5.6vw, 76px);
  font-weight: 500;
  color: var(--color-on-inverse);
  margin: 0 0 28px;
  line-height: 1.05;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
.hero h1 .tail {
  display: block;
  font-size: 0.55em;
  color: var(--color-on-inverse-muted);
  font-weight: 400;
  margin-top: 18px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  max-width: 85%;
}
.hero .body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  color: var(--color-on-inverse-muted);
  margin: 0 0 40px;
  max-width: 560px;
  text-wrap: pretty;
}
.hero .cta-row {
  display: flex; gap: 14px; flex-wrap: wrap; align-items: center;
}
.hero .trust {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-on-inverse-muted);
  margin-top: 22px;
  letter-spacing: 0.02em;
}

/* Hero diagnostic visual */
.hero-visual-wrap { position: relative; padding-top: 8px; }
.hero-visual {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(226,232,240,0.08);
  border-radius: 14px;
  padding: 28px;
  position: relative;
}
.hero-visual-eyebrow {
  position: absolute; top: -8px; right: 0;
  font-family: var(--font-sans);
  font-size: 9px; color: var(--color-on-inverse-muted);
  font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
  background: var(--color-primary-container);
  padding: 2px 8px;
}

/* ----- Trust strip ----- */
.trust-strip {
  background: var(--color-primary-container);
  border-top: 1px solid rgba(226,232,240,0.08);
  padding: 24px var(--space-8);
}
.trust-strip-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; gap: 48px; align-items: center;
  justify-content: space-between; flex-wrap: wrap;
}
.trust-strip .label {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-on-inverse-muted);
}
.trust-strip .logos {
  display: flex; gap: 36px; align-items: center; opacity: 0.5;
}
.trust-strip .logos span {
  font-family: var(--font-serif);
  font-size: 14px; font-weight: 500;
  color: var(--color-on-inverse);
  letter-spacing: 0.04em;
}

/* ----- Section header (eyebrow + h2) ----- */
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 3.4vw, 44px);
  font-weight: 500;
  color: var(--color-primary-container);
  margin: 0 0 16px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

/* ----- Problem section (3-up cards) ----- */
.problem-grid {
  display: grid; grid-template-columns: 1fr 1.6fr;
  gap: 80px; margin-bottom: 64px; align-items: start;
}
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-bottom: 64px;
}
.card-accent {
  background: var(--color-white);
  border-radius: 12px;
  padding: 32px 28px 36px;
  border-left: 4px solid var(--color-action);
  box-shadow: var(--shadow-executive);
  display: flex; flex-direction: column; gap: 14px;
}
.card-accent h3 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-primary-container);
  margin: 0;
  letter-spacing: -0.015em;
}
.card-accent p {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-on-muted);
  margin: 0;
  text-wrap: pretty;
}

/* Objection callout (pull-quote style) */
.objection-callout {
  border-left: 3px solid var(--color-action);
  padding: 4px 0 4px 24px;
  max-width: 880px;
}
.objection-callout .label {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-on-muted);
  margin-bottom: 12px; display: block;
}
.objection-callout .quote {
  font-family: var(--font-serif);
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 500;
  color: var(--color-primary-container);
  line-height: 1.45;
  letter-spacing: -0.005em;
  margin: 0;
}

/* ----- Framework section (sticky left + numbered right) ----- */
.framework-grid {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 96px; align-items: start;
}
.framework-left { position: sticky; top: 96px; }
.framework-tag {
  font-family: var(--font-serif);
  font-size: 22px; font-weight: 500;
  color: var(--color-action);
  margin: 32px 0 0;
  max-width: 360px;
  line-height: 1.4;
  letter-spacing: -0.005em;
}
.framework-stage {
  display: grid; grid-template-columns: 180px 1fr;
  gap: 32px; align-items: baseline;
  padding: 36px 0;
  border-bottom: 1px solid rgba(19, 27, 46, 0.1);
}
.framework-stage:first-child { border-top: 1px solid rgba(19, 27, 46, 0.1); }
.framework-stage .num {
  font-family: var(--font-serif);
  font-size: 56px; font-weight: 500;
  color: var(--color-action);
  line-height: 1;
  letter-spacing: -0.03em;
}
.framework-stage .short {
  font-family: var(--font-sans);
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-on-muted);
  margin-top: 8px;
  display: block;
}
.framework-stage h3 {
  font-family: var(--font-serif);
  font-size: 30px; font-weight: 600;
  color: var(--color-primary-container);
  margin: 0 0 12px;
  letter-spacing: -0.015em;
}
.framework-stage p {
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.65;
  color: var(--color-on-muted);
  margin: 0; max-width: 540px;
  text-wrap: pretty;
}

/* ----- Product ladder ----- */
.ladder { border-top: 1px solid rgba(19, 27, 46, 0.1); }
.ladder-row {
  display: grid; grid-template-columns: 1.4fr 2fr 3fr 1.4fr;
  gap: 32px; align-items: center;
  padding: 28px 12px;
  border-bottom: 1px solid rgba(19, 27, 46, 0.1);
  transition: background-color 220ms ease, padding 220ms ease, transform 220ms ease;
  color: var(--color-on-surface);
}
.ladder-row:hover {
  background: var(--color-surface-low);
  padding-left: 28px;
}
.ladder-row .arrow { transition: transform 220ms ease; }
.ladder-row:hover .arrow { transform: translateX(6px); }
.ladder-row .badge {
  font-family: var(--font-sans);
  font-size: var(--text-eyebrow);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-action);
}
.ladder-row .name {
  font-family: var(--font-serif);
  font-size: 26px; font-weight: 600;
  color: var(--color-primary-container);
  letter-spacing: -0.015em;
}
.ladder-row .descriptor {
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 500;
  color: var(--color-action);
  margin-top: 4px;
}
.ladder-row .body {
  font-family: var(--font-sans);
  font-size: 14px; line-height: 1.65;
  color: var(--color-on-muted);
  text-wrap: pretty;
}
.ladder-row .link {
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 600;
  color: var(--color-action);
  text-align: right;
}

/* ----- 2-up cards (used on Sprint, OS, etc.) ----- */
.two-up { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

/* ----- Compare table (Diagnostic two-instruments, etc.) ----- */
.compare {
  width: 100%; border-collapse: collapse;
  background: var(--color-white); border-radius: 12px; overflow: hidden;
  box-shadow: var(--shadow-executive);
}
.compare th, .compare td {
  text-align: left;
  padding: 18px 24px;
  font-family: var(--font-sans); font-size: 14px;
  color: var(--color-on-surface);
  vertical-align: top;
  border-bottom: 1px solid rgba(19, 27, 46, 0.06);
}
.compare tbody tr:last-child td { border-bottom: none; }
.compare th {
  font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  font-size: 11px; color: var(--color-on-muted);
  background: var(--color-surface-low);
}
.compare th.col-feature { width: 25%; }
.compare td.label-cell {
  font-weight: 600; color: var(--color-primary-container);
}

/* ----- LAI dimensions table ----- */
.dim-row {
  display: grid; grid-template-columns: 60px 1.2fr 0.5fr 2fr;
  gap: 24px; align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid rgba(19, 27, 46, 0.1);
}
.dim-row:first-child { border-top: 1px solid rgba(19, 27, 46, 0.1); }
.dim-row .num {
  font-family: var(--font-serif); font-size: 32px; font-weight: 500;
  color: var(--color-action); line-height: 1;
}
.dim-row .name {
  font-family: var(--font-serif); font-size: 22px; font-weight: 600;
  color: var(--color-primary-container); letter-spacing: -0.015em;
  margin: 0 0 4px;
}
.dim-row .acronym {
  font-family: var(--font-sans); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--color-on-muted);
}
.dim-row p {
  font-family: var(--font-sans); font-size: 14px; line-height: 1.65;
  color: var(--color-on-muted); margin: 0;
}
.dim-row.moderator .num,
.dim-row.moderator .name { color: var(--color-on-muted); }
.dim-row.moderator { background: var(--color-surface-low); padding: 24px 16px; border-radius: 8px; margin-top: 8px; border: none; }

/* ----- Timeline (horizontal weeks) ----- */
.timeline {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 16px; margin: 16px 0;
}
.timeline-step {
  background: var(--color-white); border-radius: 12px;
  padding: 20px 18px; border-left: 3px solid var(--color-action);
}
.timeline-step .week {
  font-family: var(--font-sans); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-action);
}
.timeline-step .label {
  font-family: var(--font-serif); font-size: 18px; font-weight: 600;
  color: var(--color-primary-container);
  margin-top: 8px;
}
.timeline-step p {
  font-family: var(--font-sans); font-size: 13px; line-height: 1.55;
  color: var(--color-on-muted); margin: 8px 0 0;
}

/* ----- Callout tinted (What to do next, gated download, embed placeholder) ----- */
.callout {
  background: var(--color-surface-low);
  border-radius: 16px;
  padding: 36px 36px 40px;
  border-left: 4px solid var(--color-action);
}
.callout h3 {
  font-family: var(--font-serif); font-size: 24px; font-weight: 600;
  color: var(--color-primary-container); margin: 0 0 12px;
  letter-spacing: -0.015em;
}
.callout p {
  font-family: var(--font-sans); font-size: 15px; line-height: 1.65;
  color: var(--color-on-muted); margin: 0 0 20px;
  max-width: 60ch;
}
.callout .cta-row { margin-top: 20px; }

.embed-placeholder {
  background: var(--color-surface-low);
  border: 1px dashed rgba(19, 27, 46, 0.18);
  border-radius: 12px;
  padding: 64px 32px;
  text-align: center;
  color: var(--color-on-muted);
}
.embed-placeholder .label {
  font-family: var(--font-sans); font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-on-muted); display: block; margin-bottom: 12px;
}
.embed-placeholder .title {
  font-family: var(--font-serif); font-size: 22px; font-weight: 500;
  color: var(--color-primary-container); display: block; margin-bottom: 8px;
}

/* ----- Sample-result card on Diagnostic hero ----- */
.sample-result {
  background: var(--color-white); border-radius: 16px;
  padding: 32px 28px; box-shadow: var(--shadow-executive-lg);
  color: var(--color-on-surface);
}
.sample-result .eyebrow { color: var(--color-on-muted); display: block; margin-bottom: 8px; }
.sample-result .archetype {
  font-family: var(--font-serif); font-size: 28px; font-weight: 600;
  color: var(--color-primary-container); letter-spacing: -0.015em;
  margin: 0 0 6px;
}
.sample-result .blurb {
  font-family: var(--font-sans); font-size: 13px; line-height: 1.55;
  color: var(--color-on-muted); margin: 0 0 22px;
}
.sample-result .stats { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.sample-result .stat .lbl {
  font-family: var(--font-sans); font-size: 9px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-on-muted);
}
.sample-result .stat .val {
  font-family: var(--font-serif); font-size: 24px; font-weight: 600;
  color: var(--color-primary-container);
}
.sample-result .stat .val .unit { font-size: 12px; color: var(--color-on-muted); margin-left: 2px; }
.sample-result .stat .pill {
  display: inline-block;
  font-family: var(--font-sans); font-size: 10px; font-weight: 700;
  padding: 3px 9px; border-radius: 9999px; margin-top: 6px;
  background: rgba(0,106,97,0.12); color: var(--color-action);
}
.sample-result .stat .pill.high { background: rgba(245, 158, 11, 0.15); color: #b45309; }
.sample-result .stat .bar {
  height: 4px; background: rgba(19,27,46,0.08);
  border-radius: 9999px; margin-top: 6px; position: relative;
}
.sample-result .stat .bar > i {
  display: block; height: 100%; background: var(--color-action);
  border-radius: 9999px;
}

/* ----- Disclaimer small print ----- */
.disclaimer {
  background: var(--color-surface-low);
  border-radius: 12px;
  padding: 20px 24px;
  font-family: var(--font-sans); font-size: 12px; line-height: 1.6;
  color: var(--color-on-muted);
  max-width: 720px; margin: 0 auto;
}

/* ----- Featured insights cards ----- */
.featured-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 16px;
}
.featured-card {
  background: var(--color-white); border-radius: 12px;
  padding: 28px 24px 32px;
  border-left: 4px solid var(--color-action);
  box-shadow: var(--shadow-executive);
  display: flex; flex-direction: column;
  transition: transform 200ms ease;
}
.featured-card:hover { transform: translateY(-2px); }
.featured-card .eyebrow { color: var(--color-on-muted); margin-bottom: 12px; }
.featured-card h3 {
  font-family: var(--font-serif); font-size: 22px; font-weight: 600;
  color: var(--color-primary-container); margin: 0 0 10px;
  letter-spacing: -0.015em;
}
.featured-card p {
  font-family: var(--font-sans); font-size: 14px; line-height: 1.65;
  color: var(--color-on-muted); margin: 0 0 16px;
}
.featured-card .link-arrow { margin-top: auto; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  background: var(--color-white); border-radius: 12px;
  padding: 24px 22px;
  box-shadow: var(--shadow-executive);
}
.article-card .eyebrow { color: var(--color-action); }
.article-card h3 {
  font-family: var(--font-serif); font-size: 20px; font-weight: 600;
  color: var(--color-primary-container); margin: 8px 0 8px;
  letter-spacing: -0.01em;
}
.article-card p {
  font-family: var(--font-sans); font-size: 13px; line-height: 1.55;
  color: var(--color-on-muted); margin: 0 0 12px;
}
.article-card .meta {
  font-family: var(--font-sans); font-size: 11px; color: var(--color-on-muted);
  letter-spacing: 0.04em;
}

/* ----- Filter rail ----- */
.filter-rail {
  display: flex; gap: 8px; flex-wrap: wrap; margin: 32px 0 24px;
}
.filter-pill {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  padding: 8px 14px; border-radius: 9999px;
  background: transparent; color: var(--color-on-muted);
  border: 1px solid rgba(19,27,46,0.12);
  cursor: pointer; transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.filter-pill:hover { background: var(--color-surface-low); }
.filter-pill.active {
  background: var(--color-primary-container); color: var(--color-on-inverse); border-color: transparent;
}

/* ----- Form ----- */
.form-stack { display: flex; flex-direction: column; gap: 18px; max-width: 560px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row label {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: var(--color-on-surface);
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%; padding: 11px 14px;
  font-family: var(--font-sans); font-size: 14px;
  background: var(--color-white);
  color: var(--color-on-surface);
  border: 1px solid rgba(19,27,46,0.12);
  border-radius: 8px;
  outline: none;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.form-row textarea { resize: vertical; min-height: 90px; }
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--color-action);
  box-shadow: 0 0 0 3px rgba(0,106,97,0.18);
}
.form-microcopy {
  font-family: var(--font-sans); font-size: 12px; line-height: 1.5;
  color: var(--color-on-muted); margin: 4px 0 0;
}

/* ----- TL;DR block ----- */
.tldr {
  background: var(--color-surface-low);
  border-left: 4px solid var(--color-action);
  border-radius: 12px;
  padding: 24px 28px;
  max-width: 720px;
}
.tldr .label {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--color-action);
  margin-bottom: 8px; display: block;
}
.tldr ul { margin: 0; padding-left: 20px; }
.tldr li {
  font-family: var(--font-sans); font-size: 15px; line-height: 1.6;
  color: var(--color-on-surface); margin-bottom: 6px;
}
.tldr li:last-child { margin-bottom: 0; }
.tldr p {
  font-family: var(--font-sans); font-size: 15px; line-height: 1.6;
  color: var(--color-on-surface); margin: 0;
}

/* ----- FAQ ----- */
.faq { display: flex; flex-direction: column; gap: 4px; }
.faq-item {
  background: var(--color-white);
  border-radius: 12px;
  padding: 24px 28px;
  box-shadow: var(--shadow-executive);
}
.faq-item h3 {
  font-family: var(--font-serif);
  font-size: 20px; font-weight: 600;
  color: var(--color-primary-container);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.faq-item p {
  font-family: var(--font-sans);
  font-size: 14px; line-height: 1.7;
  color: var(--color-on-muted);
  margin: 0;
}

/* ----- 3×3 Fit Matrix ----- */
.matrix-3x3 {
  background: var(--color-white);
  border-radius: 16px;
  padding: 36px 32px 32px;
  box-shadow: var(--shadow-executive-md);
  overflow-x: auto;
}
.matrix-3x3 table {
  border-collapse: separate; border-spacing: 0;
  width: 100%; min-width: 640px;
  font-family: var(--font-sans);
}
.matrix-3x3 th, .matrix-3x3 td {
  padding: 0; text-align: center; vertical-align: middle;
}
.matrix-3x3 .col-head {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--color-on-muted);
  padding: 0 0 18px;
}
.matrix-3x3 .row-head {
  font-size: 13px; font-weight: 600;
  color: var(--color-primary-container);
  padding: 0 18px 0 0; text-align: right;
  width: 1%; white-space: nowrap;
  line-height: 1.25;
}
.matrix-3x3 .cell {
  padding: 22px 16px;
  font-family: var(--font-serif);
  font-size: 14px; font-weight: 600;
  color: var(--color-on-muted);
  background: var(--color-surface-low);
  border: 1px solid transparent;
  border-radius: 6px;
  transition: background-color 0.2s, color 0.2s;
}
.matrix-3x3 td.cell { padding: 22px 12px; }
.matrix-3x3 .cell.highlight {
  background: rgba(220, 38, 38, 0.08);
  color: #b91c1c;
  border-color: rgba(220, 38, 38, 0.18);
  position: relative;
}
.matrix-3x3 .cell.highlight::after {
  content: ''; position: absolute; top: 8px; right: 8px;
  width: 6px; height: 6px; border-radius: 9999px;
  background: #b91c1c;
}
.matrix-3x3 .corner { width: 1%; }
.matrix-3x3 .row-spacer { height: 6px; padding: 0; }
.matrix-3x3 .col-spacer { width: 6px; padding: 0; }

/* Archetype cards (5-up flexible grid) */
.archetype-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.archetype-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 24px 22px;
  box-shadow: var(--shadow-executive);
  border-top: 4px solid var(--color-action);
}
.archetype-card.fit-simplicity { border-top-color: var(--color-fit-simplicity); }
.archetype-card.fit-founder    { border-top-color: var(--color-fit-founder); }
.archetype-card.fit-stress     { border-top-color: #2563EB; }
.archetype-card.fit-chaos      { border-top-color: var(--color-fit-chaos); }
.archetype-card.fit-scalable   { border-top-color: var(--color-fit-scalable); }
.archetype-card h3 {
  font-family: var(--font-serif);
  font-size: 20px; font-weight: 600;
  color: var(--color-primary-container);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.archetype-card p {
  font-family: var(--font-sans);
  font-size: 13px; line-height: 1.65;
  color: var(--color-on-muted);
  margin: 0;
}

@media (max-width: 768px) {
  .archetype-grid { grid-template-columns: 1fr; }
}

/* Wide lede — overrides .lede max-width when needed */
.lede.full-width { max-width: 100%; }

/* ----- Benchmark visuals ----- */
.bench-quadrant {
  background: var(--color-white);
  border-radius: 16px;
  padding: 32px 32px 28px;
  box-shadow: var(--shadow-executive-md);
  position: relative;
}
.bench-quadrant svg { width: 100%; height: auto; max-width: 560px; margin: 0 auto; display: block; }
.bench-quadrant .caption {
  font-family: var(--font-sans); font-size: 12px; color: var(--color-on-muted);
  text-align: center; margin-top: 16px;
}

.lai-histogram {
  background: var(--color-white);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-executive-md);
}
.lai-histogram svg { width: 100%; height: auto; }
.lai-histogram .caption {
  font-family: var(--font-sans); font-size: 12px; color: var(--color-on-muted);
  text-align: center; margin-top: 16px;
}

.drift-list {
  background: var(--color-white);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-executive-md);
}
.drift-row {
  display: grid; grid-template-columns: 220px 1fr 50px;
  gap: 16px; align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(19, 27, 46, 0.06);
}
.drift-row:last-child { border-bottom: none; }
.drift-row .dim {
  font-family: var(--font-sans); font-size: 14px; font-weight: 600;
  color: var(--color-primary-container);
}
.drift-row .acr {
  font-family: var(--font-sans); font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; color: var(--color-on-muted);
  margin-left: 8px;
}
.drift-row .bar {
  height: 6px; background: rgba(19,27,46,0.06);
  border-radius: 9999px; position: relative;
}
.drift-row .bar > i {
  display: block; height: 100%;
  background: var(--color-action); border-radius: 9999px;
}
.drift-row .pct {
  font-family: var(--font-serif); font-size: 18px; font-weight: 600;
  color: var(--color-action);
  text-align: right;
}

/* ----- Brand 3-layer cards on About ----- */
.brand-layers {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch;
}
.brand-card {
  background: var(--color-white); border-radius: 12px;
  padding: 28px 26px;
  border-top: 4px solid var(--color-action);
  box-shadow: var(--shadow-executive);
  display: flex; flex-direction: column; gap: 10px;
}
.brand-card .layer-label {
  font-family: var(--font-sans); font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-on-muted);
}
.brand-card h3 {
  font-family: var(--font-serif); font-size: 22px; font-weight: 600;
  color: var(--color-primary-container); margin: 0;
  letter-spacing: -0.015em;
}
.brand-card p {
  font-family: var(--font-sans); font-size: 14px; line-height: 1.65;
  color: var(--color-on-muted); margin: 0;
}

/* ----- Closing CTA ----- */
.closing-cta { text-align: center; padding: 140px 0 120px; }
.closing-cta h2 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 500;
  color: var(--color-primary-container);
  margin: 0 0 18px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.closing-cta .lede { margin: 0 auto 36px; text-align: center; font-size: 17px; }
.closing-cta .cta-row { justify-content: center; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

/* ----- Footer ----- */
.footer {
  background: var(--color-primary-container);
  color: var(--color-on-inverse);
  padding: 96px 0 40px;
}
.footer .container { padding: 0 var(--space-8); max-width: 1200px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1.6fr;
  gap: 48px;
}
.footer h4 {
  font-family: var(--font-sans);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-action);
  margin: 0 0 16px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 10px; }
.footer a {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-on-inverse);
}
.footer a:hover { color: var(--color-action); }

.footer .brand-block .tagline {
  font-family: var(--font-serif);
  font-size: 16px; line-height: 1.4;
  color: var(--color-on-inverse);
  max-width: 24ch;
  margin: 16px 0 20px;
}
.footer .lang-toggle { color: var(--color-on-inverse-muted); }
.footer .lang-toggle button.active { color: var(--color-on-inverse); }

.footer .newsletter input[type="email"] {
  width: 100%; padding: 10px 12px;
  font-family: var(--font-sans); font-size: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(226,232,240,0.12);
  border-radius: var(--radius-element);
  color: var(--color-on-inverse);
  margin-bottom: 12px;
  outline: none;
}
.footer .newsletter input[type="email"]::placeholder { color: var(--color-on-inverse-muted); }
.footer .newsletter input[type="email"]:focus {
  border-color: var(--color-action);
  box-shadow: 0 0 0 3px rgba(0,106,97,0.18);
}
.footer .newsletter .btn-action { width: 100%; }
.footer .newsletter .trust-line {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-on-inverse-muted);
  margin-top: 8px;
}
.author-credit {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-on-inverse-muted);
  margin-top: 48px;
}
.footer-bottom {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(226,232,240,0.08);
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 14px; font-size: 12px;
  color: var(--color-on-inverse-muted);
}
.footer-bottom .legal-links { display: flex; gap: 24px; }
.footer-bottom a { color: var(--color-on-inverse-muted); font-size: 12px; }
.footer-bottom a:hover { color: var(--color-on-inverse); }

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .hero-grid { gap: 56px; }
  .framework-grid { grid-template-columns: 1fr; gap: 48px; }
  .framework-left { position: static; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; row-gap: 40px; }
  .footer .newsletter, .footer .author-block { grid-column: 1 / -1; }
  .problem-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  /* Hamburger button — hidden on desktop, visible on mobile */
  .nav-burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-left: 4px;
    border-radius: var(--radius-element);
    color: var(--color-on-surface);
    transition: background-color 0.15s;
  }
  .nav-burger:hover { background: rgba(0,0,0,0.05); }
  .nav.over-dark .nav-burger { color: var(--color-on-inverse); }
  .nav.over-dark .nav-burger:hover { background: rgba(255,255,255,0.10); }
  .nav-burger svg { width: 22px; height: 22px; }

  /* Mobile nav drawer — slides down from the top under the nav bar */
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-4) var(--space-6) var(--space-6);
    background: var(--color-white);
    border-bottom: 1px solid rgba(198, 198, 205, 0.25);
    box-shadow: var(--shadow-executive-md);
    z-index: var(--z-overlay);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a {
    padding: 14px 4px;
    font-size: 16px;
    border-bottom: 1px solid rgba(198, 198, 205, 0.20);
  }
  .nav-links a:last-child { border-bottom: none; }
  /* In the open state on dark hero, switch to light surface for readability */
  .nav.over-dark .nav-links { background: var(--color-white); }
  .nav.over-dark .nav-links a { color: var(--color-on-surface); opacity: 1; }

  .nav-right .btn { padding: 10px 14px; font-size: 13px; }
  .hero { padding: 64px var(--space-6) 80px; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .card-grid { grid-template-columns: 1fr; }
  .ladder-row { grid-template-columns: 1fr; gap: 8px; padding: 24px 0; }
  .ladder-row:hover { padding-left: 0; transform: none; }
  .ladder-row .link { text-align: left; }
  .two-up { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .featured-grid, .article-grid, .brand-layers { grid-template-columns: 1fr; }
  .form-row.row-2 { grid-template-columns: 1fr; }
  .dim-row { grid-template-columns: 1fr; gap: 8px; }
  .drift-row { grid-template-columns: 1fr 60px; gap: 8px; }
  .drift-row .bar { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr; }
  .section, .section--xl { padding: 64px 0; }
  .closing-cta { padding: 80px 0 64px; }
  .framework-stage { grid-template-columns: 1fr; gap: 12px; padding: 28px 0; }
  .framework-stage .num { font-size: 44px; }
  .trust-strip-inner { gap: 16px; }
  .trust-strip .logos { gap: 16px; flex-wrap: wrap; }
}