:root {
  --ink: #111827;
  --muted: #596579;
  --paper: #f5f2eb;
  --white: #fffdf8;
  --acid: #b9ff31;
  --line: #ccd2da;
  --blue: #2349d8;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
.shell { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.mark { font-weight: 800; letter-spacing: -.04em; text-decoration: none; font-size: 1.15rem; }
.mark span { color: var(--blue); }
nav { display: flex; align-items: center; gap: 24px; font-size: .9rem; font-weight: 600; }
nav a { text-decoration: none; }
.language-link { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.nav-cta { border-bottom: 3px solid var(--blue); }

.hero { padding: 76px 0 76px; max-width: 900px; }
.eyebrow { color: var(--blue); font-size: .78rem; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.03; letter-spacing: -.045em; margin: 0; }
h1 { font-size: clamp(3rem, 6vw, 5.2rem); line-height: 1.08; max-width: 900px; }
h1 em { font-style: normal; color: var(--blue); }
h2 { font-size: clamp(2.1rem, 5vw, 4.25rem); max-width: 840px; }
h3 { font-size: 1.5rem; }
.lede { max-width: 760px; color: var(--muted); font-size: clamp(1.08rem, 1.8vw, 1.28rem); margin: 28px 0; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-block; padding: 12px 18px; border: 2px solid var(--ink); font-weight: 700; text-decoration: none; }
.primary { background: var(--ink); color: var(--white); }
.primary:hover, .primary:focus { background: var(--blue); border-color: var(--blue); }
.secondary { background: transparent; }
.micro { color: var(--muted); font-size: .82rem; margin-top: 16px; }

.signal { background: var(--ink); color: var(--white); }
.signal-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.signal-grid div { padding: 28px 22px; border-right: 1px solid #374151; }
.signal-grid div:last-child { border: 0; }
.signal strong { display: block; color: var(--acid); font-size: 2rem; }
.signal span { color: #c7ced8; font-size: .83rem; }

.section { padding-block: 110px; }
.decision-section { border-bottom: 1px solid var(--line); }
.decision-heading > p:last-child { color: var(--muted); font-size: 1.08rem; max-width: 820px; }
.decision-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.decision-grid article { background: var(--white); border: 1px solid var(--line); padding: 28px; }
.decision-grid span { color: var(--blue); font-size: .73rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.decision-grid h3 { margin: 34px 0 12px; }
.decision-grid p { color: var(--muted); margin: 0; }
.decision-offer { align-items: center; background: var(--acid); display: flex; gap: 32px; justify-content: space-between; margin-top: 16px; padding: 24px 28px; }
.decision-offer p { margin: 0; max-width: 780px; }
.decision-offer .button { flex: 0 0 auto; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 52px; }
.cards article { min-height: 270px; background: var(--white); border: 1px solid var(--line); padding: 28px; }
.cards article > span { color: var(--blue); font-weight: 900; }
.cards h3 { margin-top: 58px; }
.cards p, .proof-section p, .fit-copy { color: var(--muted); }

.progression { border-top: 1px solid var(--line); }
.progression-heading > p:last-child { color: var(--muted); font-size: 1.08rem; max-width: 760px; }
.progression-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; list-style: none; margin: 52px 0 0; padding: 0; }
.progression-steps li { background: var(--white); border-top: 4px solid var(--blue); padding: 28px; }
.progression-steps span { color: var(--blue); font-size: .73rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.progression-steps h3 { margin: 46px 0 14px; }
.progression-steps p { color: var(--muted); margin: 0; }

.core-section { border-top: 1px solid var(--line); }
.core-heading > p:last-child { color: var(--muted); font-size: 1.08rem; max-width: 780px; }
.core-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; margin-top: 44px; }
.core-controls { display: grid; align-content: start; gap: 8px; }
.core-control { appearance: none; width: 100%; background: transparent; border: 1px solid var(--line); color: var(--ink); cursor: pointer; font: inherit; font-weight: 800; padding: 14px 16px; text-align: left; }
.core-control:hover, .core-control:focus-visible { border-color: var(--blue); outline: 3px solid color-mix(in srgb, var(--blue) 20%, transparent); outline-offset: 2px; }
.core-control.is-selected { background: var(--ink); border-color: var(--ink); color: var(--white); }
.core-card { background: var(--white); border: 1px solid var(--line); padding: 28px; }
.core-card h3 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin: 8px 0 28px; }
.core-details { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 0; }
.core-details div { border-top: 1px solid var(--line); padding-top: 10px; }
.core-details dt { color: var(--blue); font-size: .73rem; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.core-details dd { font-weight: 800; margin: 4px 0 0; overflow-wrap: anywhere; }
.core-boundary { border-left: 4px solid var(--blue); color: var(--muted); font-size: .88rem; margin: 24px 0 0; max-width: 890px; padding-left: 14px; }

.proof-section { background: var(--blue); color: white; }
.proof-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 72px; align-items: start; }
.proof-section .eyebrow { color: var(--acid); }
.proof-section p { color: #dce4ff; max-width: 680px; }
pre { padding: 18px 20px; background: #122b83; color: var(--acid); overflow-x: auto; border-left: 4px solid var(--acid); }
aside { background: white; color: var(--ink); padding: 30px; }
aside p { color: var(--muted) !important; }
.aside-label { color: var(--ink) !important; font-weight: 900; text-transform: uppercase; font-size: .76rem; letter-spacing: .1em; }
aside li { margin: 10px 0; }

.trace-section { border-top: 1px solid var(--line); }
.trace-heading > p:last-child { color: var(--muted); font-size: 1.08rem; max-width: 700px; }
.trace-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 24px; margin-top: 44px; }
.trace-controls { display: grid; align-content: start; gap: 8px; }
.trace-control { appearance: none; width: 100%; background: transparent; border: 1px solid var(--line); color: var(--ink); cursor: pointer; font: inherit; font-weight: 800; padding: 14px 16px; text-align: left; }
.trace-control:hover, .trace-control:focus-visible { border-color: var(--blue); outline: 3px solid color-mix(in srgb, var(--blue) 20%, transparent); outline-offset: 2px; }
.trace-control.is-selected { background: var(--ink); border-color: var(--ink); color: var(--white); }
.trace-card { background: var(--white); border: 1px solid var(--line); padding: 28px; }
.trace-card h3 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin: 8px 0 28px; }
.trace-kicker, .trace-details dt { color: var(--blue); font-size: .73rem; font-weight: 900; letter-spacing: .11em; margin: 0; text-transform: uppercase; }
.trace-details { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin: 0; }
.trace-details div { border-top: 1px solid var(--line); padding-top: 10px; }
.trace-details dd { font-weight: 800; margin: 4px 0 0; overflow-wrap: anywhere; }
.trace-explanation { color: var(--muted); margin: 28px 0 0; }
.trace-boundary { border-left: 4px solid var(--blue); color: var(--muted); font-size: .88rem; margin: 24px 0 0; max-width: 830px; padding-left: 14px; }

.intake-section { border-top: 1px solid var(--line); }
.intake-heading > p:last-child { color: var(--muted); font-size: 1.08rem; max-width: 760px; }
.intake-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; margin-top: 44px; }
.intake-choices { display: grid; gap: 18px; }
.intake-choices fieldset { border: 0; border-top: 1px solid var(--line); margin: 0; padding: 14px 0 0; }
.intake-choices legend { color: var(--blue); font-size: .73rem; font-weight: 900; letter-spacing: .11em; padding: 0; text-transform: uppercase; }
.choice-grid { display: grid; gap: 8px; margin-top: 12px; }
.intake-choice { appearance: none; background: var(--white); border: 1px solid var(--line); color: var(--ink); cursor: pointer; font: inherit; font-weight: 750; padding: 12px 14px; text-align: left; }
.intake-choice:hover, .intake-choice:focus-visible { border-color: var(--blue); outline: 3px solid color-mix(in srgb, var(--blue) 20%, transparent); outline-offset: 2px; }
.intake-choice.is-selected { background: var(--ink); border-color: var(--ink); color: var(--white); }
.intake-card { align-self: start; background: var(--white); border: 1px solid var(--line); padding: 28px; }
.intake-card h3 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin: 8px 0 20px; }
.intake-card > p:not(.trace-kicker) { color: var(--muted); }
.intake-packet, .issue-form-bridge pre { background: var(--ink); border-left: 4px solid var(--acid); color: var(--white); font-size: .76rem; line-height: 1.45; margin: 0; white-space: pre-wrap; }
.issue-form-bridge { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 20px; }
.issue-form-bridge h4 { font-size: 1rem; margin: 8px 0 14px; }
.intake-card .button { margin-top: 6px; }
.intake-card .reset { background: transparent; color: var(--blue); font-size: .8rem; padding: 9px 12px; }
.intake-boundary { border-left: 4px solid var(--blue); color: var(--muted); font-size: .88rem; margin: 24px 0 0; max-width: 890px; padding-left: 14px; }

.fit { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.fit-copy { font-size: 1.1rem; }
.article-hero { max-width: 900px; padding: 82px 0 56px; }
.article-hero h1 { font-size: clamp(3rem, 7.5vw, 6.4rem); }
.article-hero .lede { max-width: 820px; }
.article-shell { max-width: 820px; padding-bottom: 110px; }
.article-shell section { border-top: 1px solid var(--line); padding: 64px 0; }
.article-shell h2 { font-size: clamp(2rem, 4.5vw, 3.6rem); }
.article-shell h3 { margin: 34px 0 10px; }
.article-shell p, .article-shell li { color: var(--muted); font-size: 1.06rem; }
.article-shell li { margin: 10px 0; }
.article-shell pre { margin: 28px 0; }
.article-callout { background: var(--white); border-left: 5px solid var(--blue); margin: 28px 0; padding: 22px 26px; }
.article-callout p { margin: 0; }
.article-decision { background: var(--ink); color: var(--white); padding: 30px; }
.article-decision dt { color: var(--acid); font-size: .74rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.article-decision dd { margin: 4px 0 18px; overflow-wrap: anywhere; }
.article-cta { background: var(--acid); padding: 32px; }
.article-cta p { color: var(--ink); }
.closing { border-top: 1px solid var(--line); padding: 96px 0 112px; }
.closing h2 { margin-bottom: 30px; }
.advanced-disclosure { border: 1px solid var(--line); margin-block: 28px; padding: 22px; }
.advanced-disclosure > summary { cursor: pointer; overflow-wrap: anywhere; }
.advanced-disclosure > summary span { color: var(--blue); font-size: .76rem; font-weight: 800; letter-spacing: .06em; margin-right: 12px; }
.advanced-disclosure > summary strong { font-size: 1.1rem; }
.advanced-disclosure > summary:focus-visible, .trace-method > summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 8px; }
.advanced-disclosure > .section { padding-block: 36px 12px; }
.trace-method { color: var(--muted); font-size: .88rem; margin-top: 16px; }
.trace-method > summary { cursor: pointer; font-weight: 700; }
footer { border-top: 1px solid var(--line); padding: 26px 0 40px; display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: .8rem; }

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, 1120px); }
  nav { gap: 12px; }
  nav > a:not(.nav-cta):not(.language-link) { display: none; }
  .nav-cta { font-size: .76rem; }
  .hero { padding: 48px 0 56px; }
  .hero h1 { font-size: clamp(2.65rem, 11.5vw, 3.5rem); }
  .signal-grid { grid-template-columns: 1fr 1fr; }
  .signal-grid div:nth-child(2) { border-right: 0; }
  .signal-grid div:nth-child(-n+2) { border-bottom: 1px solid #374151; }
  .cards, .decision-grid, .proof-grid, .fit, .trace-layout, .core-layout, .intake-layout, .progression-steps { grid-template-columns: minmax(0, 1fr); }
  .intake-choices, .intake-choices fieldset, .choice-grid { min-width: 0; }
  .intake-choice { min-width: 0; overflow-wrap: anywhere; }
  .decision-offer { align-items: flex-start; flex-direction: column; }
  .trace-details, .core-details { grid-template-columns: 1fr; }
  .section { padding-block: 74px; }
  .cards article { min-height: 0; padding: 22px; }
  .cards h3 { margin-top: 22px; }
  .decision-grid h3 { margin-top: 20px; }
  .progression-steps h3 { margin-top: 24px; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}