/* EyeCalibrate — minimal static site.
   Deliberately dependency-free: no build step, no fonts fetched, no JS.
   Cloudflare Pages serves this directory as-is. */

:root {
  --ink:      #14202b;
  --ink-soft: #4a5c6b;
  --line:     #dfe6ec;
  --bg:       #ffffff;
  --bg-soft:  #f5f8fa;
  --accent:   #1a6ea8;
  --warn-bg:  #fff8e6;
  --warn-line:#e8c96a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink:      #e8eef3;
    --ink-soft: #a3b2bf;
    --line:     #2a3742;
    --bg:       #0f1720;
    --bg-soft:  #16212b;
    --accent:   #6db9e8;
    --warn-bg:  #2a2416;
    --warn-line:#6b5a24;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap { max-width: 44rem; margin: 0 auto; padding: 0 1.25rem; }

header.site {
  border-bottom: 1px solid var(--line);
  padding: 1.1rem 0;
  background: var(--bg-soft);
}
header.site .wrap { display: flex; align-items: baseline; gap: 1.25rem; flex-wrap: wrap; }
header.site a.brand {
  font-weight: 700; font-size: 1.1rem; color: var(--ink);
  text-decoration: none; letter-spacing: -0.01em;
}
header.site nav { margin-left: auto; display: flex; gap: 1.25rem; }
header.site nav a { color: var(--ink-soft); text-decoration: none; font-size: 0.95rem; }
header.site nav a:hover { color: var(--accent); text-decoration: underline; }

main { padding: 2.5rem 0 4rem; }

h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 0.6rem; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 0.6rem; letter-spacing: -0.01em; }
h3 { font-size: 1.02rem; margin: 1.5rem 0 0.4rem; }
p, li { color: var(--ink); }
.lede { font-size: 1.15rem; color: var(--ink-soft); margin: 0 0 1.75rem; }
.meta { color: var(--ink-soft); font-size: 0.9rem; }

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

ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }

table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: 0.95rem; }
th, td { border: 1px solid var(--line); padding: 0.55rem 0.7rem; text-align: left; vertical-align: top; }
th { background: var(--bg-soft); font-weight: 600; }
.scroll { overflow-x: auto; }

.card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  margin: 1.5rem 0;
}
.card h3 { margin-top: 0; }

.note {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}
.note p:first-child { margin-top: 0; }
.note p:last-child  { margin-bottom: 0; }

.contact {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0.75rem 0;
}

footer.site {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 3rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
footer.site a { color: var(--ink-soft); }
footer.site nav { display: flex; gap: 1.25rem; margin-bottom: 0.75rem; flex-wrap: wrap; }