/* ElectroVision site — mirrors the app's tokens so the web and product read
   as one thing. Light ground, electric green as the single accent. */
:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --ink: #0f1524;
  --ink-soft: #6b7688;
  --line: #e6ebf3;
  --primary: #12b886;
  --primary-dark: #0ca678;
  --maxw: 720px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
}

header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.bar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.spark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--primary);
  display: grid; place-items: center;
  color: #fff; font-size: 15px;
}

nav { margin-left: auto; display: flex; gap: 20px; }

nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

nav a:hover { color: var(--primary-dark); }

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

h1 {
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  letter-spacing: -0.01em;
  margin: 40px 0 10px;
  padding-top: 4px;
}

h3 { font-size: 16px; margin: 24px 0 6px; }

p, li { color: #303a4d; }

.lede { font-size: 18px; color: var(--ink-soft); margin: 0 0 4px; }

.updated {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 24px 0;
}

.card h3 { margin-top: 0; }

.card p:last-child, .card ul:last-child { margin-bottom: 0; }

/* A caution card. Amber rather than red — this is something to read carefully,
   not an error. Uses a left rule instead of a full tint so it stays legible. */
.notice {
  border-left: 4px solid var(--amber, #ffb020);
  background: #fffbf2;
  border-color: #f5e3c2;
  border-left-color: #ffb020;
}

ul { padding-left: 22px; }
li { margin: 6px 0; }

a { color: var(--primary-dark); }

code {
  background: #eef2f8;
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 13px;
}

footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.foot {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 24px 40px;
  font-size: 14px;
  color: var(--ink-soft);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.foot a { color: var(--ink-soft); text-decoration: none; }
.foot a:hover { color: var(--primary-dark); }
.foot .who { margin-left: auto; }

@media (max-width: 600px) {
  h1 { font-size: 28px; }
  main { padding: 36px 20px 64px; }
  .foot .who { margin-left: 0; width: 100%; }
}