/* Cep Not — blueprint-grid Bauhaus (cobalt / cream / crimson) */

:root {
  --cream:   #F3EEE1;
  --cream-2: #EAE4D3;
  --cobalt:  #1A3A8A;
  --cobalt-2:#284BA0;
  --crimson: #C1272D;
  --ink:     #14161A;
  --ink-2:   #3B4048;
  --grid:    rgba(26, 58, 138, 0.08);
  --font-sans: "Helvetica Neue", "Inter", "Arial", sans-serif;
  --font-display: "Helvetica Neue", "Inter", "Arial Black", sans-serif;
  --font-mono: "SFMono-Regular", "Consolas", "Menlo", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--cream)
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--cream);
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header — thin cobalt strip with monospace ident */
.hdr {
  border-bottom: 2px solid var(--cobalt);
  padding: 14px 0;
  background: var(--cream);
}
.hdr .container {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cobalt);
}
.hdr .ident b { color: var(--crimson); }
.hdr .meta   { color: var(--ink-2); }

/* Masthead — huge blocky CEP / NOT */
.masthead {
  padding: 56px 0 40px;
  border-bottom: 2px solid var(--cobalt);
}
.masthead-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(72px, 14vw, 168px);
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--cobalt);
  text-transform: uppercase;
}
.masthead-title .accent { color: var(--crimson); }
.masthead-sub {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

/* Numbered cards — Swiss grid */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-bottom: 2px solid var(--cobalt);
}
.card {
  padding: 40px 32px;
  border-right: 2px solid var(--cobalt);
  border-bottom: 2px solid var(--cobalt);
  background: transparent;
}
.card:nth-child(2n) { border-right: none; }
.card:nth-last-child(-n+2) { border-bottom: none; }
.card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--crimson);
  margin-bottom: 14px;
}
.card-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  line-height: 1.15;
  color: var(--cobalt);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: -0.005em;
}
.card-body {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}
.card-body p + p { margin-top: 10px; }
.card-body code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--cream-2);
  padding: 1px 6px;
  border-radius: 2px;
}

/* CTA row */
.cta-row {
  padding: 48px 0;
  border-bottom: 2px solid var(--cobalt);
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
}
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 2px solid var(--cobalt);
  background: var(--cobalt);
  color: var(--cream);
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
}
.btn:hover { background: var(--cobalt-2); }
.btn.btn-ghost {
  background: transparent; color: var(--cobalt);
}
.btn.btn-ghost:hover { background: var(--cobalt); color: var(--cream); }
.btn.btn-crimson {
  background: var(--crimson); border-color: var(--crimson);
}
.btn.btn-crimson:hover { background: #a51f24; }

/* Footer */
.foot {
  padding: 28px 0 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.foot a { color: var(--cobalt); text-decoration: none; }
.foot a:hover { text-decoration: underline; }

/* Mobile */
@media (max-width: 700px) {
  .cards { grid-template-columns: 1fr; }
  .card {
    border-right: none !important;
    border-bottom: 2px solid var(--cobalt);
    padding: 32px 24px;
  }
  .card:last-child { border-bottom: none; }
  .masthead { padding: 40px 0 32px; }
  .cta-row { padding: 32px 0; }
}