/* Citera Tech — shared stylesheet */

:root {
  --ink: #1D2220;
  --slate: #4E555A;
  --muted: #767D78;
  --blue: #3E5C74;
  --green: #4B7A45;
  --paper: #F3F3EF;
  --paper-alt: #E7E6E0;
  --line: #D7D6CF;
  --white: #FFFFFF;

  --sans: "IBM Plex Sans", -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--green); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0 0 14px;
}

h1, h2, h3 {
  font-family: var(--sans);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
  color: var(--ink);
}

h1 { font-size: 42px; }
h2 { font-size: 28px; }
h3 { font-size: 19px; font-weight: 600; }

p { margin: 0 0 18px; color: var(--slate); }

.prose { max-width: 680px; }
.prose p { font-size: 18px; line-height: 1.7; color: var(--ink); }
.prose p.muted { color: var(--muted); }

/* Header / nav */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  flex-wrap: wrap;
  gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { width: 34px; height: 34px; }
.logo span.wordmark {
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--ink);
  font-weight: 500;
}
nav.main-nav { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
nav.main-nav a {
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
}
nav.main-nav a.current { color: var(--green); }
nav.main-nav a:hover { color: var(--green); }
.lang-switch { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.lang-switch:hover { color: var(--green); }

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 22px;
  border-radius: 2px;
  border: 1px solid var(--ink);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--green); border-color: var(--green); color: var(--white); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--green); color: var(--green); }

/* Hero */
.hero { padding: 80px 0 60px; }
.hero h1 { max-width: 780px; }
.hero .lede { font-size: 19px; max-width: 620px; color: var(--slate); }
.cta-row { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }

.page-hero { padding: 60px 0 36px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 720px; font-size: 34px; }

/* Activation line signature graphic */
.activation-graphic { margin: 40px 0 8px; }
.activation-caption {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin-top: 10px;
}

/* Hero photo */
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.hero-image img { width: 100%; border-radius: 4px; }
@media (max-width: 800px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-image { max-width: 320px; }
}

/* Bands */
.band {
  background: var(--paper-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
}
.band p { margin: 0; color: var(--ink); font-size: 15px; }

/* Card grid */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 56px 0;
}
.card {
  background: var(--paper);
  padding: 34px 30px;
}
.card h3 { margin-bottom: 10px; }
.card p { font-size: 15px; margin-bottom: 16px; }
.card .card-link { font-family: var(--mono); font-size: 14px; color: var(--green); }

section.block { padding: 52px 0; }
section.block.tight { padding: 32px 0; }
.rule { border: none; border-top: 1px solid var(--line); margin: 0; }

.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin: 40px 0; }
.pillar { border-top: 2px solid var(--blue); padding-top: 18px; }
.pillar:nth-child(2) { border-top-color: var(--green); }
.pillar .eyebrow { color: var(--muted); }

/* Article / insight cards */
.article-card {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  flex-wrap: wrap;
}
.article-card .meta { font-family: var(--mono); font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.article-card h3 { margin-bottom: 8px; }
.article-card p { font-size: 15px; margin-bottom: 0; max-width: 560px; }
.article-card .read { font-family: var(--mono); font-size: 14px; white-space: nowrap; color: var(--green); }

.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin: 40px 0; }
.value-item { border-top: 2px solid var(--blue); padding-top: 14px; }
.value-item:nth-child(2) { border-top-color: var(--green); }
.value-item:nth-child(3) { border-top-color: var(--slate); }
.value-item h3 { font-size: 16px; margin-bottom: 8px; }
.value-item p { font-size: 14px; }

.about-intro { display: grid; grid-template-columns: 180px 1fr; gap: 40px; align-items: start; margin: 8px 0 0; }
.about-intro img { width: 100%; border: 1px solid var(--line); border-radius: 4px; }
@media (max-width: 800px) {
  .about-intro { grid-template-columns: 1fr; }
  .about-intro img { max-width: 180px; }
}
.contact-block { display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: start; margin: 40px 0 60px; }
.contact-panel { border: 1px solid var(--line); padding: 34px; background: var(--white); }
.contact-panel .eyebrow { margin-bottom: 10px; }
.contact-panel a.big-link { display: block; font-family: var(--sans); font-weight: 600; font-size: 21px; margin: 6px 0 20px; color: var(--ink); }
.contact-panel a.big-link:hover { color: var(--green); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 36px 0;
  margin-top: 40px;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer p { font-size: 13px; color: var(--muted); margin: 0; }
.site-footer nav { display: flex; gap: 22px; }
.site-footer nav a { font-size: 13px; color: var(--muted); }
.site-footer nav a:hover { color: var(--green); }

@media (max-width: 800px) {
  h1 { font-size: 30px; }
  .hero { padding: 52px 0 36px; }
  .cards { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
  .contact-block { grid-template-columns: 1fr; gap: 30px; }
}