/* Tailfin's site (step 19d): the app's colours and type, light and dark. */

/* Fonts served from this site, not Google Fonts (no visitor data to Google). */
@font-face { font-family: "Space Grotesk"; src: url("/fonts/SpaceGrotesk-Regular.ttf"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url("/fonts/SpaceGrotesk-Medium.ttf"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url("/fonts/SpaceGrotesk-SemiBold.ttf"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Space Grotesk"; src: url("/fonts/SpaceGrotesk-Bold.ttf"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Space Mono"; src: url("/fonts/SpaceMono-Regular.ttf"); font-weight: 400; font-display: swap; }

:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #0b1726;
  --muted: #4a5a70;
  --line: #d9e1ec;
  --accent: #0a84c6;
  --amber: #c77700;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #050d19;
    --surface: #0c1828;
    --text: #e8eef7;
    --muted: #93a3b8;
    --line: #1c2a3d;
    --accent: #4fd3f5;
    --amber: #ffb547;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 "Space Grotesk", system-ui, sans-serif;
}

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

header,
main,
footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  padding-bottom: 20px;
}

header a.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 22px;
}

header img {
  width: 36px;
  height: 36px;
}

header nav {
  margin-left: auto;
  display: flex;
  gap: 16px;
  font-size: 15px;
}

header nav a {
  color: var(--muted);
  text-decoration: none;
}

header nav a:hover {
  color: var(--text);
}

h1 {
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 24px 0 12px;
}

h2 {
  font-size: 22px;
  margin: 36px 0 8px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 4px;
}

.label {
  font-family: "Space Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
}

.hero {
  text-align: center;
  padding: 32px 0 8px;
}

.hero img {
  width: 140px;
  height: 140px;
}

.hero .wordmark {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 8px 0 0;
}

.lead {
  font-size: 20px;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}

.card h3 {
  margin-top: 0;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.note {
  background: var(--surface);
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  margin: 12px 0;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 8px;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-weight: 500;
}

.table-wrap {
  overflow-x: auto;
}

footer {
  margin-top: 56px;
  padding-top: 20px;
  padding-bottom: 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

footer a {
  color: var(--muted);
}

@media (max-width: 520px) {
  h1 {
    font-size: 30px;
  }

  header nav {
    gap: 12px;
  }
}