:root {
  color-scheme: light;
  --ink: #15191f;
  --muted: #5e6672;
  --line: #d8dde4;
  --soft: #f3f6f8;
  --white: #ffffff;
  --blue: #1463d7;
  --blue-dark: #0b4298;
  --lime: #b9e443;
  --green: #0b7147;
  --red: #b42318;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
}
a { color: inherit; }
img { display: block; max-width: 100%; }

.site-header {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand, .footer-brand {
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
}
.brand span, .footer-brand span { color: var(--blue); margin-left: 4px; }
.header-cta {
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.hero {
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  background: #eef2f5;
}
.hero__content {
  padding: 82px max(40px, calc((100vw - 1180px) / 2)) 74px;
  padding-right: 64px;
  align-self: center;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1, h2, h3, p { letter-spacing: 0; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; }
h1 { max-width: 760px; margin-bottom: 22px; font-size: clamp(42px, 5.7vw, 76px); }
h2 { margin-bottom: 18px; font-size: clamp(30px, 4vw, 50px); }
h3 { margin-bottom: 10px; font-size: 20px; }
.hero__lede { max-width: 700px; margin: 0; color: #4f5966; font-size: 18px; }
.session-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 32px 0;
  border: 1px solid #cfd6de;
  background: #cfd6de;
}
.session-strip div { padding: 14px 12px; background: var(--white); }
.session-strip strong, .session-strip span { display: block; }
.session-strip strong { font-size: 14px; }
.session-strip span { margin-top: 3px; color: var(--muted); font-size: 11px; }
.button, .submit-btn {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  padding: 14px 20px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.button--primary, .submit-btn { color: var(--white); background: var(--blue); }
.button--primary:hover, .submit-btn:hover { background: var(--blue-dark); }
.button--dark { color: var(--ink); background: var(--lime); }
.button--dark:hover { background: #a6d12d; }
.microcopy, .secure-note { margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.hero__visual { min-height: 540px; position: relative; overflow: hidden; }
.hero__visual img { width: 100%; height: 100%; object-fit: cover; }
.hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 48%, rgba(9, 16, 25, .58));
}
.visual-note {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  z-index: 1;
  border-left: 4px solid var(--lime);
  padding: 12px 16px;
  color: var(--white);
  background: rgba(15, 22, 31, .78);
}
.visual-note span, .visual-note strong { display: block; }
.visual-note span { color: #d9e1e8; font-size: 12px; }
.visual-note strong { font-size: 19px; }

.signal-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--ink);
  color: var(--white);
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
}
.signal-band p { margin: 0; padding: 18px; border-right: 1px solid #3c424a; font-size: 13px; font-weight: 700; text-align: center; }
.signal-band p:first-child { border-left: 1px solid #3c424a; }

.section, .form-section, .risk-section, footer {
  padding-left: max(24px, calc((100vw - 1180px) / 2));
  padding-right: max(24px, calc((100vw - 1180px) / 2));
}
.section { padding-top: 84px; padding-bottom: 84px; }
.section--soft { background: var(--soft); }
.section-heading { max-width: 790px; margin: 0 auto 38px; text-align: center; }
.section-heading--left { margin-left: 0; text-align: left; }
.section-heading > p:last-child { color: var(--muted); }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.audience-grid article { min-height: 260px; padding: 28px; border: 1px solid var(--line); background: var(--white); }
.audience-grid article > span { display: inline-block; margin-bottom: 48px; color: var(--blue); font-size: 13px; font-weight: 800; }
.audience-grid p, .curriculum-list p, .class-format p, .team-layout p { color: var(--muted); }

.curriculum { display: grid; grid-template-columns: .8fr 1.2fr; gap: 62px; align-items: start; }
.curriculum .button { grid-column: 1; width: max-content; margin-top: -110px; }
.curriculum-list { grid-column: 2; grid-row: 1 / span 2; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.curriculum-list li { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.curriculum-list li > span { color: var(--blue); font-size: 13px; font-weight: 800; }
.curriculum-list h3, .curriculum-list p { margin: 0; }
.curriculum-list p { margin-top: 7px; }

.class-format { display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding-top: 0; padding-bottom: 0; background: #e8edf1; }
.class-format__image { min-height: 600px; margin-left: calc(max(24px, (100vw - 1180px) / 2) * -1); }
.class-format__image img { width: 100%; height: 100%; object-fit: cover; }
.class-format__copy { align-self: center; padding: 64px 0 64px 64px; }
.format-step { display: grid; grid-template-columns: 72px 1fr; gap: 20px; padding: 18px 0; border-bottom: 1px solid #cdd4dc; }
.format-step span { color: var(--blue); font-size: 13px; font-weight: 800; text-transform: uppercase; }
.format-step p { margin: 0; }
.format-note { margin-top: 24px; font-size: 13px; }

.section--ink { color: var(--white); background: var(--ink); }
.section--ink .eyebrow { color: var(--lime); }
.team-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.team-layout > div:last-child > p { margin-top: 0; color: #c2c8d0; font-size: 18px; }
.team-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.team-tags span { border: 1px solid #535b66; border-radius: 5px; padding: 8px 11px; font-size: 12px; font-weight: 700; }

.form-section { padding-top: 90px; padding-bottom: 96px; background: var(--soft); }
.form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.form-intro { position: sticky; top: 100px; }
.form-intro > p { color: var(--muted); }
.form-intro ul { margin: 26px 0 0; padding: 0; list-style: none; }
.form-intro li { position: relative; margin: 12px 0; padding-left: 25px; font-weight: 700; }
.form-intro li::before { content: ""; position: absolute; left: 0; top: .55em; width: 10px; height: 10px; background: var(--lime); }
.lead-form { display: grid; gap: 16px; border: 1px solid var(--line); border-radius: 6px; padding: 28px; background: var(--white); box-shadow: 0 16px 38px rgba(21, 25, 31, .08); }
.lead-form label { display: grid; gap: 7px; color: #303741; font-size: 13px; font-weight: 800; }
.lead-form input, .lead-form select { width: 100%; min-height: 46px; border: 1px solid #cbd2da; border-radius: 5px; padding: 10px 12px; color: var(--ink); background: var(--white); font: inherit; }
.lead-form input:focus, .lead-form select:focus { outline: 3px solid rgba(20, 99, 215, .14); border-color: var(--blue); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.code-row { display: grid; grid-template-columns: minmax(0, 1fr) 126px; gap: 10px; align-items: start; }
.code-btn { align-self: end; min-height: 46px; border: 1px solid var(--blue); border-radius: 5px; color: var(--blue-dark); background: #edf4ff; font: inherit; font-weight: 800; cursor: pointer; }
.code-btn:hover { background: #dceaff; }
.code-btn:disabled { opacity: .68; cursor: not-allowed; }
.hidden-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.consent { grid-template-columns: 18px 1fr; align-items: start; color: var(--muted) !important; font-weight: 600 !important; }
.consent input { min-height: 18px; margin-top: 2px; }
.consent a { color: var(--blue-dark); }
.optional { color: var(--muted); font-size: 11px; font-weight: 500; }
small { min-height: 16px; color: var(--red); font-weight: 600; }
.form-message { display: none; border-radius: 5px; padding: 12px; font-weight: 700; }
.form-message.success { display: block; color: var(--green); border: 1px solid #abefc6; background: #ecfdf3; }
.form-message.error { display: block; color: var(--red); border: 1px solid #fecdca; background: #fef3f2; }
.submit-btn[disabled] { opacity: .66; cursor: progress; }
.secure-note { text-align: center; }

.faq-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 64px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq-list summary { cursor: pointer; font-size: 17px; font-weight: 800; }
.faq-list p { margin: 12px 0 0; color: var(--muted); }
.risk-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 64px; padding-top: 54px; padding-bottom: 54px; color: var(--white); background: #26313d; }
.risk-section .eyebrow { color: var(--lime); }
.risk-section h2 { font-size: 30px; }
.risk-section > p { margin: 0; color: #d1d7de; font-size: 14px; }

footer { display: grid; grid-template-columns: 1fr 1.4fr auto; gap: 30px; align-items: start; padding-top: 42px; padding-bottom: 42px; border-top: 1px solid var(--line); }
footer p { margin: 0; color: var(--muted); font-size: 12px; }
footer nav { display: flex; gap: 18px; font-size: 12px; font-weight: 700; }
.copyright { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid var(--line); }
.mobile-cta { display: none; }

@media (max-width: 940px) {
  .hero { min-height: auto; grid-template-columns: 1fr; }
  .hero__content { padding: 64px 28px; }
  .hero__visual { min-height: 460px; }
  .curriculum, .team-layout, .form-layout, .faq-section, .risk-section { grid-template-columns: 1fr; gap: 34px; }
  .curriculum-list { grid-column: 1; grid-row: auto; }
  .curriculum .button { grid-column: 1; margin-top: 0; }
  .form-intro { position: static; }
  .class-format__copy { padding-left: 40px; }
}

@media (max-width: 680px) {
  body { padding-bottom: 64px; }
  .site-header { min-height: 60px; padding: 0 18px; }
  .header-cta { display: none; }
  h1 { font-size: 42px; }
  h2 { font-size: 32px; }
  .hero__content { padding: 52px 20px; }
  .hero__visual { min-height: 350px; }
  .session-strip { grid-template-columns: 1fr 1fr; }
  .signal-band { grid-template-columns: 1fr 1fr; padding: 0; }
  .signal-band p:first-child { border-left: 0; }
  .section, .form-section, .risk-section, footer { padding-left: 20px; padding-right: 20px; }
  .section { padding-top: 64px; padding-bottom: 64px; }
  .audience-grid { grid-template-columns: 1fr; }
  .audience-grid article { min-height: auto; }
  .audience-grid article > span { margin-bottom: 28px; }
  .class-format { grid-template-columns: 1fr; padding-left: 0; padding-right: 0; }
  .class-format__image { min-height: 340px; margin-left: 0; }
  .class-format__copy { padding: 48px 20px; }
  .field-row, .code-row { grid-template-columns: 1fr; }
  .lead-form { padding: 20px; }
  footer { grid-template-columns: 1fr; }
  footer nav { flex-wrap: wrap; }
  .copyright { grid-column: 1; }
  .mobile-cta { display: flex; position: fixed; left: 12px; right: 12px; bottom: 10px; z-index: 30; min-height: 48px; align-items: center; justify-content: center; border-radius: 6px; color: var(--white); background: var(--blue); font-weight: 800; text-decoration: none; box-shadow: 0 12px 28px rgba(21, 25, 31, .24); }
}