/* teppo.eu — minimal typographic, with a few cues borrowed from teksti.teppo.eu */

:root {
  color-scheme: light dark;

  --bg:       #fbfaf7;
  --fg:       #1b1b18;
  --muted:    #6b6b62;
  --rule:     #dedbd2;
  --card:     #ffffff;
  --chip-bg:  #f1eee3;
  --accent:   #0a6c78;   /* teletext cyan, darkened for a light ground */
  --accent-2: #7a5d00;   /* teletext yellow, darkened for a light ground */

  --measure: 34rem;
  --serif: ui-serif, Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --mono:  ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:       #0e0f11;
    --fg:       #dcdcd4;
    --muted:    #8b8b81;
    --rule:     #272a2e;
    --card:     #15171a;
    --chip-bg:  #1e2126;
    --accent:   #00dede;   /* the real teletext cyan is legible on black */
    --accent-2: #ffd400;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* --- masthead ------------------------------------------------------------ */

.masthead {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--rule);
}

.wordmark {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
  text-decoration: none;
}
.wordmark:hover { color: var(--accent); }

.topnav {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  display: flex;
  gap: 1rem;
}

/* --- home ---------------------------------------------------------------- */

.tagline {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 1.75rem 0 0;
}

.intro { margin-block: 0.75rem 2.5rem; }
.intro p:first-child { margin-top: 0.5rem; }

/* Small-print notice, set like an allergen warning on a food package. */
.label {
  display: inline-block;
  margin: 1.5rem 0 0;
  padding: 0.45rem 0.7rem;
  border: 1px dashed var(--accent-2);
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Section headings, in the spirit of a teletext page header. */
.rubric {
  font-family: var(--mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}

/* --- project card -------------------------------------------------------- */

.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--accent);
  margin-bottom: 1.5rem;
}

.card-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin: 0;
  padding: 0.6rem 1rem;
  background: var(--chip-bg);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.chip {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid currentColor;
  padding: 0.05rem 0.4rem;
  white-space: nowrap;
}

.card-body { margin: 0; padding: 1rem; }

/* --- blog ---------------------------------------------------------------- */

.postlist { list-style: none; margin: 0; padding: 0; }
.postlist li { display: flex; gap: 1rem; padding: 0.35rem 0; }
.postlist time { font-family: var(--mono); font-size: 0.8125rem; color: var(--muted); flex: none; }

.post h1 { font-size: 1.5rem; line-height: 1.25; margin-bottom: 0.25rem; }

.muted { color: var(--muted); }

/* --- footer -------------------------------------------------------------- */

.colophon {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}

.colophon h2 {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.colophon ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
}

/* --- error pages --------------------------------------------------------- */

.errpage { padding-top: 3rem; }

.errcode {
  font-family: var(--mono);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin: 0 0 1.5rem;
}

.errblock + .errblock {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}