:root {
  color-scheme: light;
  --ink: #111;
  --paper: #fff;
  --line: #111;
  --muted: #555;
  --soft: #f7f7f7;
  --softer: #fbfbfb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
button:hover {
  text-decoration: underline;
}

button,
.button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  font: inherit;
  cursor: pointer;
}

button.secondary {
  background: var(--paper);
  color: var(--ink);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  padding: 18px clamp(18px, 4vw, 48px);
}

.brand {
  font-size: 22px;
  font-weight: 700;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px 18px;
}

.main-nav a {
  padding: 6px 0;
}

.menu-button {
  display: none;
}

.section {
  border-bottom: 1px solid var(--line);
  padding: clamp(42px, 7vw, 88px) clamp(18px, 4vw, 48px);
}

.section.compact {
  padding-top: 28px;
  padding-bottom: 28px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(320px, 2fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  min-height: 620px;
}

.hero h1 {
  max-width: 760px;
  margin: 0 0 24px;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 820px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading h2,
.split h2,
.final-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.05;
  letter-spacing: 0;
}

.section-heading p,
.split p,
.final-cta p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.check-list {
  display: grid;
  gap: 10px;
  max-width: 680px;
  margin: 0 0 28px;
  padding-left: 20px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button-row.vertical {
  flex-direction: column;
}

.button-row.vertical button {
  width: 100%;
}

.placeholder,
.logo-strip div,
.avatar-placeholder {
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: repeating-linear-gradient(
    45deg,
    var(--paper),
    var(--paper) 10px,
    var(--soft) 10px,
    var(--soft) 20px
  );
  color: var(--muted);
  text-align: center;
}

.hero-placeholder {
  min-height: 460px;
  aspect-ratio: 4 / 3;
}

.placeholder.small {
  min-height: 160px;
  margin-bottom: 20px;
}

.certificate-placeholder {
  min-height: 300px;
}

.logo-strip {
  display: grid;
}

.logo-strip div {
  min-height: 92px;
  padding: 20px;
}

.journey {
  background: var(--softer);
}

.journey-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.journey-steps li {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 20px;
}

.journey-steps span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  margin-bottom: 14px;
  font-weight: 700;
}

.card-grid {
  display: grid;
  gap: 16px;
}

.card-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 22px;
}

.card h3,
.card h4,
.journey-steps h3,
.compare-box h3 {
  margin: 0 0 10px;
  line-height: 1.15;
}

.card p,
.journey-steps p {
  margin: 0 0 14px;
}

.card ul {
  padding-left: 20px;
  margin: 0 0 20px;
}

.card button {
  margin-top: auto;
}

.compact-card {
  min-height: 210px;
}

.inline-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--line);
  margin-top: 16px;
  padding: 18px 22px;
}

.inline-note p {
  margin: 0;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.quote-stack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

blockquote {
  margin: 0;
  border: 1px solid var(--line);
  padding: 20px;
}

blockquote p {
  color: var(--ink);
}

cite {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-style: normal;
}

.instructor-card {
  gap: 6px;
}

.avatar-placeholder {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin-bottom: 14px;
}

.final-cta {
  display: grid;
  justify-items: start;
  gap: 18px;
}

.site-footer {
  padding: 44px clamp(18px, 4vw, 48px);
  background: var(--ink);
  color: var(--paper);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 28px;
}

.footer-grid a {
  display: block;
  margin: 8px 0;
  color: var(--paper);
}

.copyright {
  margin-top: 32px;
  color: #ddd;
}

.action-toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 20;
  max-width: min(360px, calc(100vw - 32px));
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  padding: 12px 14px;
  box-shadow: 4px 4px 0 var(--line);
  font-size: 14px;
}

@media (max-width: 980px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .card-grid.three,
  .journey-steps,
  .logo-strip,
  .quote-stack,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
  }

  .menu-button {
    display: inline-block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    padding: 12px 18px;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    border: 1px solid var(--line);
    padding: 12px;
  }

  .hero {
    min-height: auto;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero-placeholder {
    min-height: 260px;
  }

  .card-grid.three,
  .card-grid.four,
  .journey-steps,
  .logo-strip,
  .quote-stack,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .action-toast {
    right: 10px;
    bottom: 10px;
  }
}