/* Terracosm Software — site styles */

:root {
  --brown: #5c3b1e;
  --brown-dark: #3f2812;
  --blue: #1f97cf;
  --blue-dark: #15729e;
  --green: #4c8b2b;
  --text: #2b2b2b;
  --muted: #666;
  --rule: #e4ddd4;
  --band: #f6f2ec;
  --page: #ffffff;
  --max: 1080px;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--blue-dark); }
a:hover { color: var(--brown); }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- Header ---------- */

.site-header { border-top: 5px solid var(--brown); }

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 22px;
  padding-bottom: 18px;
}

.logo img { width: 300px; }

.header-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 15px;
  color: var(--muted);
  text-align: right;
}
.header-contact a { color: var(--blue-dark); text-decoration: none; }
.header-contact a:hover { text-decoration: underline; }

.site-nav {
  background: var(--brown);
}
.site-nav ul {
  list-style: none;
  margin: 0 auto;
  padding: 0 16px;
  max-width: var(--max);
  display: flex;
  flex-wrap: wrap;
}
.site-nav a {
  display: block;
  padding: 12px 18px;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.03em;
  border-bottom: 3px solid transparent;
}
.site-nav a:hover { background: var(--brown-dark); color: #fff; }
.site-nav a[aria-current="page"] { border-bottom-color: var(--blue); }

/* ---------- Slideshow ---------- */

.slideshow {
  position: relative;
  max-width: 1078px;
  margin: 18px auto 0;
  aspect-ratio: 1078 / 370;
}
.slideshow .slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
}
.slideshow .slide.is-active { opacity: 1; }

.slide-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}
.slide-dots button {
  width: 12px;
  height: 12px;
  padding: 0;
  border: 2px solid var(--brown);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}
.slide-dots button[aria-current="true"] { background: var(--brown); }
.slide-dots button:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  .slideshow .slide { transition: none; }
}

/* ---------- Page heading band ---------- */

.page-head {
  margin-top: 18px;
  background: var(--band);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.page-head h1 {
  margin: 0;
  padding: 22px 0;
  color: var(--brown);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.2;
}

/* ---------- Content ---------- */

.content { padding-top: 32px; padding-bottom: 48px; }
.content::after { content: ""; display: table; clear: both; }

.content h2 {
  margin: 1.8em 0 0.4em;
  color: var(--brown);
  font-size: 22px;
  line-height: 1.3;
}
.content h2:first-child { margin-top: 0; }

.content p { margin: 0 0 1em; }

.content ul { margin: 0 0 1.2em; padding-left: 2.2em; display: flow-root; }
.content li { margin-bottom: 0.3em; }
.content li::marker { color: var(--green); }

.section { clear: both; }
.section::after { content: ""; display: table; clear: both; }

.figure {
  margin: 6px 0 16px;
  width: min(52%, 580px);
}
.figure.right { float: right; margin-left: 28px; }
.figure.left { float: left; margin-right: 28px; }
.figure.photo { width: min(30%, 280px); }
.figure img { border: 1px solid var(--rule); }
.figure a { display: block; }
.figure figcaption {
  margin-top: 6px;
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}

.callout {
  clear: both;
  margin-top: 2em;
  padding: 18px 22px;
  background: var(--band);
  border-left: 4px solid var(--blue);
  font-weight: 600;
}
.callout p { margin: 0; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--brown-dark);
  color: #e9e1d7;
  font-size: 14px;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 8px 24px;
  flex-wrap: wrap;
  padding-top: 18px;
  padding-bottom: 18px;
}
.site-footer a { color: #fff; }

/* ---------- Small screens ---------- */

@media (max-width: 700px) {
  body { font-size: 16px; }
  .header-top { justify-content: center; text-align: center; }
  .logo img { width: 240px; }
  .header-contact { text-align: center; }
  .site-nav ul { justify-content: center; padding: 0; }
  .site-nav a { padding: 10px 12px; font-size: 14px; }
  .page-head h1 { font-size: 24px; padding: 16px 0; }
  .figure, .figure.photo {
    float: none;
    width: 100%;
    margin: 8px 0 18px;
  }
  .figure.photo { max-width: 280px; margin-left: auto; margin-right: auto; }
}