:root {
  --ink: #18322d;
  --muted: #5d6c68;
  --paper: #f5f2e9;
  --white: #fffef9;
  --green: #173f38;
  --mint: #dbe9df;
  --orange: #e6673e;
  --line: #cfd8d2;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(23, 63, 56, .12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; line-height: 1.6; }
button, input, textarea { font: inherit; }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -4rem; background: var(--white); padding: .75rem; z-index: 10; }
.skip-link:focus { top: 1rem; }
.site-header { min-height: 72px; display: flex; align-items: center; gap: 2rem; padding: 0 clamp(1rem, 5vw, 5rem); border-bottom: 1px solid rgba(24,50,45,.12); background: rgba(245,242,233,.94); position: sticky; top: 0; z-index: 5; backdrop-filter: blur(10px); }
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; letter-spacing: -.02em; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; background: var(--green); color: white; border-radius: 9px 9px 9px 2px; font-weight: 800; }
nav { display: flex; gap: 1.5rem; margin-left: auto; }
nav a { font-size: .9rem; text-decoration: none; }
.language-toggle { border: 1px solid var(--ink); background: transparent; border-radius: 999px; padding: .35rem .7rem; cursor: pointer; }
.hero { min-height: 680px; padding: clamp(4rem, 9vw, 8rem) clamp(1rem, 7vw, 7rem); display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); align-items: center; gap: clamp(3rem, 8vw, 8rem); overflow: hidden; position: relative; isolation: isolate; background-image: linear-gradient(rgba(23,63,56,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(23,63,56,.045) 1px, transparent 1px), linear-gradient(rgba(23,63,56,.022) 1px, transparent 1px), linear-gradient(90deg, rgba(23,63,56,.022) 1px, transparent 1px); background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px; }
.hero::before { content: ""; position: absolute; width: min(42vw, 560px); aspect-ratio: 1; right: -14%; top: -32%; border: 1px solid rgba(23,63,56,.1); border-radius: 50%; box-shadow: 0 0 0 40px rgba(23,63,56,.025), 0 0 0 80px rgba(23,63,56,.018); z-index: -1; }
.hero-copy { max-width: 760px; }
.eyebrow { color: var(--orange); font-weight: 750; text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; margin: 0 0 .8rem; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; margin: 0 0 1rem; }
h1 { font-size: clamp(2.8rem, 7vw, 6.2rem); max-width: 13ch; }
h2 { font-size: clamp(2rem, 4.5vw, 4rem); max-width: 15ch; }
.hero-lead, .section-heading > p:last-child { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.28rem); max-width: 620px; }
.actions { display: flex; gap: .8rem; flex-wrap: wrap; margin: 2rem 0; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .75rem 1.2rem; border-radius: 8px; border: 1px solid var(--green); text-decoration: none; font-weight: 700; cursor: pointer; }
.button-primary { background: var(--green); color: white; }
.button-primary:hover { background: #0e302a; }
.button-secondary { background: transparent; color: var(--green); }
.trust-list { display: flex; flex-wrap: wrap; gap: .7rem 1.5rem; list-style: none; padding: 0; color: var(--muted); font-size: .88rem; }
.trust-list li::before { content: "✓"; color: var(--orange); font-weight: 800; margin-right: .4rem; }
.hero-card { background: var(--green); color: white; border-radius: 28px; padding: clamp(2rem, 4vw, 3.5rem); box-shadow: var(--shadow); }
.pipe-line { display: flex; align-items: center; margin-bottom: 3rem; }
.pipe-line span { display: block; width: 32%; height: 8px; background: var(--orange); }
.pipe-line span:nth-child(2) { height: 42px; width: 42px; border-radius: 50%; border: 8px solid var(--orange); background: transparent; }
.card-label { color: #acd1c2; text-transform: uppercase; font-size: .75rem; letter-spacing: .12em; }
.card-question { font-size: clamp(1.5rem, 3vw, 2.4rem); font-weight: 750; line-height: 1.2; }
.work-order-flow { display: flex; align-items: center; gap: .45rem; flex-wrap: wrap; margin: 1.5rem 0; }
.work-order-flow span { border: 1px solid rgba(255,255,255,.35); border-radius: 4px; padding: .28rem .52rem; color: #e6f0ec; font: 700 .72rem/1 ui-monospace, SFMono-Regular, Consolas, monospace; text-transform: uppercase; letter-spacing: .06em; }
.work-order-flow b { color: var(--orange); font-weight: 900; }
.card-note { color: #c8d9d3; }
.section { padding: clamp(5rem, 10vw, 9rem) clamp(1rem, 7vw, 7rem); }
.section-heading { margin-bottom: 3rem; }
.trade-divider { max-width: 640px; position: relative; margin: -1.5rem 0 2.5rem; color: rgba(23,63,56,.35); }
.trade-divider svg { display: block; width: 100%; height: auto; overflow: visible; }
.trade-divider path, .trade-divider circle { fill: none; stroke: currentColor; stroke-width: 2; vector-effect: non-scaling-stroke; }
.trade-divider > span { position: absolute; right: 0; top: 31px; font: 700 .65rem/1 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .08em; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.steps-grid article { background: var(--white); padding: 2rem; border-top: 3px solid var(--orange); position: relative; overflow: hidden; }
.steps-grid article::after { content: ""; position: absolute; width: 44px; height: 44px; right: -23px; bottom: -23px; border: 7px solid var(--mint); border-radius: 50%; }
.steps-grid article > span { color: var(--orange); font-weight: 800; font-size: .8rem; }
.steps-grid h3 { font-size: 1.35rem; margin-top: 2rem; }
.steps-grid p { color: var(--muted); }
.survey-section { background: var(--green); padding: clamp(4rem, 9vw, 8rem) clamp(1rem, 7vw, 7rem); }
.survey-shell { max-width: 1020px; margin: auto; background: var(--white); border-radius: 24px; padding: clamp(1.5rem, 5vw, 4.5rem); box-shadow: var(--shadow); }
.survey-intro { border-bottom: 1px solid var(--line); padding-bottom: 2rem; margin-bottom: 2rem; }
.survey-meta { display: flex; gap: 1.5rem; color: var(--muted); font-size: .9rem; }
.progress-label { display: flex; justify-content: space-between; font-size: .82rem; font-weight: 700; }
.progress-track { height: 6px; background: var(--mint); border-radius: 10px; margin: .6rem 0 2rem; overflow: hidden; }
#progress-bar { display: block; height: 100%; width: 0; background: var(--orange); transition: width .25s; }
.survey-step { border: 0; padding: 0; margin: 0; }
.survey-step legend { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 750; line-height: 1.3; margin-bottom: 1.4rem; }
.choice { display: flex; gap: .8rem; align-items: flex-start; border: 1px solid var(--line); border-radius: 10px; padding: .9rem 1rem; margin: .65rem 0; cursor: pointer; }
.choice:has(input:checked) { border-color: var(--green); background: var(--mint); }
.choice input { margin-top: .25rem; accent-color: var(--green); }
textarea, input:not([type="checkbox"]):not([type="radio"]) { width: 100%; border: 1px solid #aebdb7; background: white; border-radius: 8px; padding: .75rem; }
textarea { min-height: 110px; resize: vertical; }
.form-actions { display: flex; justify-content: space-between; gap: 1rem; margin-top: 2rem; }
.field-error { color: #a62d20; font-weight: 650; font-size: .85rem; }
.success-panel { text-align: center; padding: 2rem; }
.success-mark { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; margin: auto auto 1rem; background: var(--mint); font-size: 1.5rem; }
.pilot-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 9vw, 8rem); background: #e5ece5; }
.pilot-copy ul { padding-left: 1.2rem; }
.language-note { border-left: 3px solid var(--orange); background: rgba(255, 254, 249, .55); padding: .9rem 1rem; }
.interest-form { background: var(--white); padding: clamp(1.4rem, 4vw, 3rem); border-radius: var(--radius); box-shadow: var(--shadow); display: grid; gap: 1rem; }
.honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.interest-form fieldset { border: 0; padding: 0; margin: 0; }
.interest-form legend, .interest-form label > span:first-child { display: block; font-weight: 700; margin-bottom: .35rem; }
.consent { display: flex; gap: .65rem; align-items: flex-start; font-size: .88rem; }
.consent input { margin-top: .3rem; }
.form-note, .form-status { color: var(--muted); font-size: .82rem; margin: 0; }
.form-status-success { color: var(--green); background: var(--mint); border: 1px solid rgba(23, 63, 56, .24); border-radius: 10px; padding: .9rem 1rem; font-size: .95rem; font-weight: 700; }
.about-section { display: grid; grid-template-columns: minmax(240px, .65fr) 1.35fr; align-items: center; gap: clamp(3rem, 8vw, 7rem); }
.researcher-portrait { margin: 0; max-width: 200px; }
.researcher-portrait img { display: block; width: 100%; height: auto; border-radius: 50%; box-shadow: var(--shadow); }
.researcher-portrait figcaption { margin-top: .75rem; text-align: center; font-weight: 750; }
dl { margin-top: 2rem; }
dl div { display: grid; grid-template-columns: 120px 1fr; border-top: 1px solid var(--line); padding: .8rem 0; }
dt { font-weight: 750; }
dd { margin: 0; color: var(--muted); }
.profile-link { display: inline-block; margin-top: .5rem; color: var(--green); font-weight: 750; }
.privacy-strip { background: var(--ink); color: white; padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 7vw, 7rem); display: grid; grid-template-columns: .65fr 1.35fr; gap: 3rem; }
.privacy-strip p { color: #cddbd7; max-width: 760px; }
.privacy-strip a { color: #ffad92; }
.privacy-links { display: flex; gap: .75rem 1.5rem; flex-wrap: wrap; }
.legal-page { padding: clamp(3rem, 8vw, 7rem) clamp(1rem, 7vw, 7rem); }
.legal-shell { max-width: 900px; margin: auto; }
.legal-shell > header { padding-bottom: 2rem; border-bottom: 1px solid var(--line); margin-bottom: 2rem; }
.legal-shell h1 { font-size: clamp(2.1rem, 6vw, 4.8rem); max-width: none; overflow-wrap: break-word; hyphens: auto; }
.legal-shell article { padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.legal-shell article h2 { font-size: clamp(1.35rem, 3vw, 2rem); max-width: none; }
.legal-shell article p { color: var(--muted); }
.legal-contact { background: var(--mint); border-left: 4px solid var(--orange); padding: 1rem 1.25rem; margin-top: 2rem; }
.legal-back { display: inline-block; margin-top: 2rem; font-weight: 750; }
footer { display: flex; gap: 1rem 2rem; flex-wrap: wrap; justify-content: space-between; padding: 1.5rem clamp(1rem, 7vw, 7rem); font-size: .85rem; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
@media (max-width: 780px) {
  nav { display: none; }
  .language-toggle { margin-left: auto; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .steps-grid, .pilot-section, .about-section, .privacy-strip { grid-template-columns: 1fr; }
  .survey-meta { flex-direction: column; gap: .3rem; }
  .researcher-portrait { max-width: 180px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
