:root {
  --black: #000;
  --white: #fff;
  --green: #34a853;
  --green-ink: #137333;
  --green-wash: #edfaf3;
  --ink: #0f172a;
  --ink-2: #475569;
  --ink-3: #64748b;
  --line: #e2e8f0;
  --wash: #f8fafc;
  --ring: #8c8c8c;
  --font: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(20px, 5vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-underline-offset: 3px; }
a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- top bar ---------- */
.bar {
  background: var(--black);
  color: var(--white);
}
.bar-in {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.word {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.035em;
  text-decoration: none;
  line-height: 1;
}
.bar nav { display: flex; gap: 26px; }
.bar nav a {
  color: #d4d4d4;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.bar nav a:hover { color: var(--white); border-bottom-color: var(--white); }
.bar nav a[aria-current="page"] { color: var(--white); border-bottom-color: var(--green); }

/* ---------- hero ---------- */
.hero { background: var(--black); color: var(--white); }
.hero-in {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(36px, 7vw, 88px) var(--gutter) clamp(48px, 8vw, 104px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
}
h1 {
  margin: 0 0 24px;
  font-size: clamp(44px, 7.4vw, 88px);
  line-height: 0.98;
  font-weight: 700;
  letter-spacing: -0.045em;
}
.lede {
  margin: 0 0 32px;
  max-width: 34em;
  font-size: clamp(17px, 1.6vw, 20px);
  color: #d4d4d4;
}
.btn {
  display: inline-block;
  background: var(--white);
  color: var(--black);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 22px;
  border-radius: 10px;
  text-decoration: none;
}
.btn:hover { background: #e5e5e5; }
.note { margin: 14px 0 0; font-size: 14px; color: #a3a3a3; }

.choices {
  display: flex;
  gap: clamp(8px, 1.6vw, 16px);
  margin: clamp(36px, 6vw, 64px) 0 0;
  padding: 0;
  list-style: none;
}
.choices li {
  width: clamp(44px, 6.4vw, 68px);
  aspect-ratio: 1;
  border: 3px solid var(--ring);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: clamp(18px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--ring);
}
.choices li.right {
  background: var(--green);
  border-color: var(--green);
  color: var(--black);
}
/* the one moment of motion: B is picked on load */
@media (prefers-reduced-motion: no-preference) {
  .choices li.right {
    animation: pick 0.5s 0.9s both ease-out;
  }
  @keyframes pick {
    from { background: transparent; border-color: var(--ring); color: var(--ring); }
    to   { background: var(--green); border-color: var(--green); color: var(--black); }
  }
}

/* ---------- panel mock ---------- */
.panel {
  background: var(--white);
  color: var(--ink);
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.5;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.8);
}
.panel-head {
  background: var(--black);
  color: var(--white);
  padding: 14px 18px;
  font-weight: 600;
  font-size: 15px;
  border-bottom: 1px solid #262626;
}
.panel-body { padding: 16px 18px 18px; }
.capture {
  background: var(--black);
  color: var(--white);
  text-align: center;
  font-weight: 600;
  padding: 11px;
  border-radius: 8px;
  margin-bottom: 18px;
}
.label {
  margin: 0 0 8px;
  padding-left: 8px;
  border-left: 2px solid var(--black);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-2);
  line-height: 1.2;
}
.answer {
  background: var(--green-wash);
  border: 1px solid #b7e4c7;
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
}
.answer b { display: block; color: var(--green-ink); font-size: 13px; margin-bottom: 4px; }
.answer p { margin: 0; font-weight: 700; }
.why {
  border-left: 3px solid var(--green);
  background: var(--green-wash);
  padding: 10px 14px;
  margin: 0 0 18px;
  color: #1e4d2b;
}
.others { display: grid; gap: 8px; }
.other {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  color: var(--ink-2);
}
.other i {
  font-style: normal;
  font-weight: 700;
  font-size: 12px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--line);
  color: var(--ink-2);
  display: grid;
  place-items: center;
}

/* ---------- sections ---------- */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(48px, 7vw, 96px) 0; }
.section + .section { border-top: 1px solid var(--line); }
h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.sub { margin: 0 0 40px; max-width: 36em; color: var(--ink-2); }

.steps {
  list-style: none;
  counter-reset: s;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
}
.steps li { counter-increment: s; padding-top: 20px; border-top: 3px solid var(--black); }
.steps li::before {
  content: counter(s);
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-3);
  margin-bottom: 10px;
}
.steps h3 { margin: 0 0 8px; font-size: 20px; line-height: 1.25; letter-spacing: -0.015em; }
.steps p { margin: 0; color: var(--ink-2); }

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  margin: 0 0 32px;
}
.facts h3 { margin: 0 0 6px; font-size: 18px; letter-spacing: -0.01em; }
.facts p { margin: 0; color: var(--ink-2); }
.more { font-weight: 600; }

/* ---------- document pages ---------- */
.doc-head { background: var(--black); color: var(--white); }
.doc-head .wrap { padding-top: clamp(32px, 5vw, 64px); padding-bottom: clamp(32px, 5vw, 56px); }
.doc-head h1 { font-size: clamp(36px, 5.6vw, 60px); margin-bottom: 12px; }
.doc-head p { margin: 0; color: #a3a3a3; font-size: 15px; }
.doc { max-width: 720px; margin: 0 auto; padding: clamp(36px, 5vw, 64px) var(--gutter) clamp(56px, 8vw, 104px); }
.doc h2 { font-size: 24px; margin: 48px 0 12px; letter-spacing: -0.02em; }
.doc h2:first-child { margin-top: 0; }
.doc h3 { font-size: 17px; margin: 28px 0 6px; }
.doc p, .doc li { color: #1e293b; }
.doc p { margin: 0 0 14px; }
.doc ul { margin: 0 0 14px; padding-left: 22px; }
.doc li { margin-bottom: 8px; }
.doc a { color: var(--ink); font-weight: 500; }
.callout {
  background: var(--wash);
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 0 0 28px;
}
.callout p { margin: 0; }
.callout p + p { margin-top: 10px; }
table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); }
th { font-weight: 600; color: var(--ink); white-space: nowrap; padding-right: 20px; }
td { color: #1e293b; }
.mail-btn { margin-top: 4px; background: var(--black); color: var(--white); }
.mail-btn:hover { background: #333; }
.doc a.btn { color: var(--white); font-weight: 600; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); background: var(--wash); }
.foot-in {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px var(--gutter) 40px;
  display: grid;
  gap: 14px;
  font-size: 14px;
  color: var(--ink-3);
}
.foot nav { display: flex; gap: 22px; flex-wrap: wrap; }
.foot nav a { color: var(--ink); font-weight: 500; }
.foot p { margin: 0; max-width: 62em; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero-in { grid-template-columns: minmax(0, 1fr); }
  .steps, .facts { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .steps li { padding-top: 16px; }
}
@media (max-width: 420px) {
  .bar nav { gap: 18px; }
  .word { font-size: 23px; }
  table, tbody, tr, th, td { display: block; }
  tr { padding: 10px 0; border-bottom: 1px solid var(--line); }
  th, td { border: 0; padding: 0; }
  th { margin-bottom: 2px; }
}