:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-text: #1a2233;
  --color-text-muted: #4c5567;
  --color-border: #dde2ea;
  --color-accent: #1d5fd6;
  --color-accent-contrast: #ffffff;
  --color-focus: #1d5fd6;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 780px;
}


* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 17px;
}

a {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

header {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 24px 20px;
  border-bottom: 1px solid var(--color-border);
}

.wordmark {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
}

.app-identity {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
  text-decoration: none;
}

.app-identity img {
  object-fit: contain;
}

.swu-link {
  display: inline-flex;
  max-width: 100%;
}

.swu-link img {
  width: 288px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 48px 0;
  border-bottom: 1px solid var(--color-border);
}

section:last-of-type {
  border-bottom: none;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 20px;
}

h2 {
  font-size: 1.4rem;
  margin: 0 0 12px;
}

.lede {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 62ch;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 12px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.note {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.stages {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  counter-reset: stage;
}

.stages > li {
  counter-increment: stage;
  display: grid;
  grid-template-columns: 40px 140px 1fr;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
}

.stages > li:first-child {
  border-top: none;
}

.stages > li::before {
  content: counter(stage);
  color: var(--color-accent);
  font-weight: 700;
}

.stage-name {
  font-weight: 700;
}

.stage-desc {
  color: var(--color-text-muted);
}

.target-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

.target-list li {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 14px;
}

footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 48px;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.wordmark-foot {
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 8px;
}

@media (max-width: 480px) {
  .stages > li {
    grid-template-columns: 28px 1fr;
  }

  .stage-desc {
    grid-column: 2 / 3;
  }
}