:root {
  --bg: #eeeeee;
  --ink: #222831;
  --text: #31363f;
  --muted: #666666;
  --navy: #31363f;
  --mint: #76abae;
  --btn-text: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

h1,
h2,
h3 {
  font-family: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  font-weight: 400;
  margin: 0 0 0.5em;
}

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

.skip-links {
  position: absolute;
  left: -9999px;
}

.skip-links a:focus {
  position: static;
}

/* Homepage */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
}

.logo-full {
  max-width: 380px;
  width: 100%;
  height: auto;
  display: block;
}

.hero-copy {
  text-align: center;
}

.hero-copy h1 {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.hero-copy p {
  color: var(--text);
  margin: 0;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 2rem 1rem;
}

/* IFU page */
.page {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.page-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.page-header .icon {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
}

.page-header h1 {
  font-size: 2rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.ifu-item {
  margin-bottom: 3rem;
}

.ifu-item h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.ifu-item .body-text {
  color: var(--text);
  margin-bottom: 1.25rem;
}

.btn-download {
  display: inline-block;
  background: var(--navy);
  color: var(--btn-text);
  text-decoration: none;
  padding: 0.6rem 1.25rem;
  border-radius: 4px;
  font-size: 0.9rem;
}

.btn-download:hover {
  opacity: 0.9;
}