:root {
  color-scheme: light;
  --paper: #f5f2e9;
  --card: #fffcf6;
  --ink: #181510;
  --muted: #59534c;
  --line: #d9d1c6;
  --accent: #ff5a00;
  --focus: #a53200;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden], form:not([data-ready]) { display: none !important; }
body { margin: 0; color: var(--ink); background: var(--paper); line-height: 1.5; }
a { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}
.skip-link { position: absolute; top: -10rem; left: 1rem; z-index: 2; padding: .65rem; background: white; }
.skip-link:focus { top: 1rem; }
.masthead { background: #030303; color: #fff; border-bottom: 1px solid #303027; }
.masthead-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  max-width: 1240px; min-height: 74px; margin: auto; padding: 0 clamp(1.1rem, 4vw, 3rem);
}
.brand { display: block; position: relative; width: 204px; height: 37px; overflow: hidden; flex-shrink: 0; }
.brand img { position: absolute; width: 100%; height: auto; top: 50%; transform: translateY(-49%); }
.languages { display: flex; gap: .35rem; font: 700 .76rem/1 ui-monospace, monospace; }
.languages a { padding: .7rem .65rem; border: 1px solid #464640; text-decoration: none; border-radius: 4px; }
.languages a:hover, .languages a[aria-current] { color: #140900; background: var(--accent); border-color: var(--accent); }
.masthead a:focus-visible { outline-color: var(--accent); }
.layout {
  max-width: 1240px; margin: auto; padding: clamp(2rem, 6vw, 5.25rem) clamp(1.1rem, 4vw, 3rem);
  display: grid; grid-template-columns: minmax(240px, .75fr) minmax(0, 1.25fr); gap: clamp(2rem, 7vw, 6rem); align-items: start;
}
.intro { padding-top: .65rem; }
.eyebrow, .counter, .survey-top, .optional {
  font: 700 .76rem/1.4 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .07em; text-transform: uppercase;
}
.eyebrow { display: flex; align-items: center; gap: .55rem; }
.record-light { background: var(--accent); width: .63rem; height: .63rem; display: inline-block; transform: skew(-14deg); }
h1 { font-size: clamp(2.55rem, 5.1vw, 4.9rem); line-height: .98; letter-spacing: -.068em; margin: .9rem 0 1.2rem; }
.intro p, .thanks p { color: var(--muted); font-size: 1rem; max-width: 34rem; margin: 0; }
.signal {
  display: flex; align-items: center; gap: 5px; height: 86px; margin: 1.75rem 0 1rem;
  border-block: 1px solid var(--line); overflow: hidden;
}
.signal i { width: 4px; height: var(--level); background: var(--accent); border-radius: 1px; transform: skew(-8deg); }
.steps { list-style: none; padding: 0; margin: 0; }
.steps li { display: flex; gap: 1rem; align-items: center; padding: .7rem 0; color: var(--muted); font-size: .9rem; }
.steps span { font: 700 .74rem ui-monospace, monospace; }
.steps li[aria-current] { color: var(--ink); font-weight: 750; }
.steps li[aria-current] span { background: var(--accent); padding: .22rem .34rem; margin: -.22rem -.34rem; }
.survey-card {
  min-width: 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: clamp(1rem, 4vw, 2.6rem); box-shadow: 0 10px 36px #2022110b;
}
.survey-top {
  display: flex; justify-content: space-between; gap: .75rem; align-items: center;
  border-bottom: 1px solid var(--line); padding-bottom: .9rem; color: var(--muted);
}
.counter { color: var(--ink); }
h2 { font-size: clamp(1.48rem, 3vw, 2.15rem); line-height: 1.15; letter-spacing: -.035em; margin: 1.25rem 0 1.65rem; }
h2:focus { outline: none; }
.question { min-width: 0; border: 0; padding: 0; margin: 0 0 1.65rem; }
.question legend, .prompt { padding: 0; margin: 0 0 .75rem; font-weight: 720; line-height: 1.35; font-size: 1.03rem; }
.prompt { display: block; }
.choices { display: grid; gap: .42rem; }
.choice {
  display: flex; align-items: flex-start; gap: .65rem; padding: .63rem .72rem;
  border: 1px solid var(--line); border-radius: 5px; cursor: pointer; font-size: .935rem;
}
.choice:hover { border-color: #ad5d36; }
.choice:has(input:checked) { background: #ffebdd; border-color: #bf430c; }
.choice input { flex: 0 0 auto; width: 1rem; height: 1rem; margin: .2rem 0 0; accent-color: #ae3600; }
.optional { display: inline-block; color: var(--muted); margin-bottom: .55rem; }
.help { color: var(--muted); font-size: .9rem; margin: 0 0 .6rem; }
.question textarea, .question input[type="text"] {
  display: block; width: 100%; padding: .65rem .7rem; border-radius: 5px;
  border: 1px solid #a9ab9d; background: white; font: inherit; color: var(--ink);
}
.question textarea { resize: vertical; }
.concept { color: #393028; border-left: 3px solid var(--accent); padding-left: 1rem; margin: 0 0 1.9rem; }
.concept p { margin: 0 0 .8rem; }
.concept p:last-child { margin-bottom: 0; }
.actions { display: flex; gap: .65rem; flex-wrap: wrap; justify-content: flex-end; padding-top: .95rem; border-top: 1px solid var(--line); }
.actions button, .thanks a { font: inherit; font-weight: 700; border-radius: 5px; padding: .69rem .92rem; border: 1px solid var(--ink); cursor: pointer; }
.primary { color: var(--ink); background: var(--accent); }
.primary:hover { background: #ff7738; }
.primary:disabled { opacity: .65; cursor: wait; }
.back { color: var(--ink); background: transparent; }
.back:hover { background: #edece3; }
.actions span { margin-inline: .25rem; }
.notice { margin: 0; }
.thanks { max-width: 900px; margin: 0 auto; padding: clamp(3rem, 9vw, 8rem) 1.25rem; }
.thanks a { display: inline-block; margin-top: 1.5rem; background: var(--accent); text-decoration: none; }
.home {
  max-width: 1240px; margin: auto;
  padding: clamp(2.5rem, 8vw, 7rem) clamp(1.1rem, 4vw, 3rem) 3rem;
}
.home h1 { max-width: 13ch; font-size: clamp(3rem, 8vw, 7rem); }
.home p { max-width: 37rem; margin: 0; color: var(--muted); }
.home > p { font-size: clamp(1rem, 2vw, 1.2rem); }
.home .signal {
  display: flex; gap: clamp(4px, 1vw, 12px);
  height: clamp(56px, 10vw, 106px); margin: clamp(1.5rem, 4vw, 3rem) 0;
}
.home .signal i { width: clamp(4px, .8vw, 9px); }
.home-research { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem 2rem; }
.home-research h2 { font-size: clamp(1.35rem, 3vw, 1.85rem); margin: 0 0 .35rem; }
.home-research nav { display: flex; flex-wrap: wrap; gap: .65rem; }
.home-research a {
  display: inline-flex; gap: .5rem; align-items: center; min-height: 44px;
  border: 1px solid var(--ink); border-radius: 5px; padding: .6rem .85rem;
  font-weight: 700; text-decoration: none;
}
.home-research a:hover { text-decoration: underline; }
@media (max-width: 760px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 1.45rem; padding-top: 1.45rem; }
  .intro { padding-top: 0; }
  .intro h1 { margin-bottom: .8rem; }
  .signal, .steps { display: none; }
  .masthead-inner { min-height: 61px; }
  .brand { width: 167px; height: 31px; }
}
@media (max-width: 360px) { .brand { width: 138px; } .languages a { padding-inline: .5rem; } }