/* TELOS marketing site — mhgtelos.com
   Self-contained: system fonts only, no external requests. */

:root {
  --ink: #14243a;        /* deep navy — text on light */
  --ink-soft: #43536b;
  --paper: #f8f6f1;      /* warm off-white */
  --paper-tint: #efeadf;
  --dark: #101d30;       /* dark section background */
  --dark-2: #16273f;
  --on-dark: #e9ecf2;
  --on-dark-soft: #a8b4c6;
  --gold: #b9922e;       /* accent */
  --gold-bright: #d4ad45;
  --blue: #2f6db3;       /* info blue (matches product palette) */
  --green: #2e7d4f;
  --rule: #d9d2c2;
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, .wordmark { font-family: var(--serif); font-weight: 600; line-height: 1.15; }

h1 { font-size: clamp(2.6rem, 6vw, 4.2rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 0.6em; letter-spacing: -0.005em; }
h3 { font-size: 1.15rem; margin-bottom: 0.35em; }

a { color: var(--blue); }
.section-dark a, .site-footer a { color: var(--gold-bright); }

.kicker {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.9em;
}

.section-lede { max-width: 46em; color: var(--ink-soft); margin-bottom: 2.2rem; }
.section-dark .section-lede { color: var(--on-dark-soft); }

/* ============ header ============ */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.wordmark {
  font-size: 1.35rem; letter-spacing: 0.20em; color: var(--ink);
  text-decoration: none; display: flex; align-items: baseline; gap: 0.6em;
}
.wordmark-by {
  font-family: var(--sans); font-size: 0.7rem; letter-spacing: 0.08em;
  color: var(--ink-soft); text-transform: uppercase;
}
.nav-links { display: flex; gap: 1.4rem; align-items: center; }
.nav-links a {
  color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; font-weight: 500;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  color: var(--paper) !important; background: var(--ink);
  padding: 0.45em 1em; border-radius: 6px;
}
.nav-cta:hover { background: var(--dark-2); }

/* ============ hero ============ */
.hero { padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5.5rem); }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.hero h1 { margin: 0.2em 0 0.4em; }
.lede { font-size: 1.12rem; color: var(--ink-soft); max-width: 34em; }
.hero-actions { display: flex; gap: 0.9rem; margin-top: 2rem; flex-wrap: wrap; }

.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  font-size: 0.95rem; padding: 0.75em 1.5em; border-radius: 8px;
  transition: transform 0.12s ease, background 0.12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: var(--gold-bright); }
.btn-ghost { border: 1.5px solid var(--rule); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink-soft); }
.btn-lg { font-size: 1.05rem; padding: 0.85em 1.9em; }

/* hero trace card */
.hero-card {
  background: #fff; border: 1px solid var(--rule); border-radius: 12px;
  box-shadow: 0 18px 44px -18px rgba(16, 29, 48, 0.28);
  overflow: hidden;
}
.card-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.85rem 1.15rem; background: var(--paper-tint);
  border-bottom: 1px solid var(--rule);
}
.card-title { font-size: 0.85rem; font-weight: 700; letter-spacing: 0.02em; }
.badge {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 0.25em 0.7em; border-radius: 99px;
}
.badge-approved { background: #e2efe7; color: var(--green); }
.trace { padding: 0.6rem 1.15rem; }
.trace > div {
  display: grid; grid-template-columns: 92px 1fr; gap: 0.8rem;
  padding: 0.55rem 0; border-bottom: 1px dashed var(--rule);
  font-size: 0.88rem;
}
.trace > div:last-child { border-bottom: none; }
.trace dt { color: var(--ink-soft); font-weight: 600; }
.card-foot {
  padding: 0.7rem 1.15rem; font-size: 0.8rem; color: var(--ink-soft);
  background: var(--paper-tint); border-top: 1px solid var(--rule);
  font-style: italic;
}

/* ============ sections ============ */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-dark { background: var(--dark); color: var(--on-dark); }
.section-dark h2 { color: #fff; }
.section-tint { background: var(--paper-tint); }

/* principle cards */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.card {
  background: #fff; border: 1px solid var(--rule); border-radius: 12px;
  padding: 1.6rem 1.5rem; position: relative;
}
.card p { font-size: 0.95rem; color: var(--ink-soft); }
.card-num {
  display: inline-grid; place-items: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--ink); color: var(--gold-bright);
  font-family: var(--serif); font-size: 1rem; font-weight: 700;
  margin-bottom: 0.9rem;
}

/* pipeline */
.pipeline {
  list-style: none; counter-reset: stage;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem;
  margin-top: 1rem;
}
.pipeline li {
  background: var(--dark-2); border: 1px solid #24384f; border-radius: 12px;
  padding: 1.3rem 1.1rem; position: relative;
}
.pipeline li:not(:last-child)::after {
  content: "→"; position: absolute; right: -0.95rem; top: 1.2rem;
  color: var(--gold-bright); font-size: 1.1rem; z-index: 1;
}
.stage-marker {
  display: inline-grid; place-items: center;
  width: 1.7rem; height: 1.7rem; border-radius: 50%;
  border: 1.5px solid var(--gold); color: var(--gold-bright);
  font-size: 0.85rem; font-weight: 700; margin-bottom: 0.8rem;
}
.pipeline h3 { color: #fff; font-size: 1.05rem; }
.pipeline p { font-size: 0.85rem; color: var(--on-dark-soft); }

/* traceability */
.split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem); align-items: start;
}
.split p { margin-bottom: 1rem; color: var(--ink-soft); }
.checklist { list-style: none; margin-top: 0.4rem; }
.checklist li {
  padding: 0.7rem 0 0.7rem 2rem; position: relative;
  border-bottom: 1px solid var(--rule); font-size: 0.95rem;
}
.checklist li::before {
  content: "✓"; position: absolute; left: 0.2rem; top: 0.6rem;
  color: var(--green); font-weight: 700;
}

/* sources */
.sources { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.source {
  background: #fff; border: 1px solid var(--rule); border-radius: 12px;
  padding: 1.5rem 1.4rem;
}
.source p { font-size: 0.9rem; color: var(--ink-soft); }

/* the name */
.name-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem); align-items: center;
}
.name-grid p { color: var(--ink-soft); }
.greek { color: var(--gold); font-style: italic; margin-right: 0.15em; }
.backronym { list-style: none; }
.backronym li {
  display: grid; grid-template-columns: 2.6rem 1fr; align-items: center;
  gap: 1rem; padding: 0.55rem 0; border-bottom: 1px solid var(--rule);
}
.backronym b {
  font-family: var(--serif); font-size: 1.7rem; color: var(--gold);
  text-align: center;
}
.backronym span { font-size: 1.02rem; letter-spacing: 0.04em; }

/* contact */
.contact { text-align: center; }
.contact .section-lede { margin-left: auto; margin-right: auto; }
.contact .kicker { color: var(--gold-bright); }

/* footer */
.site-footer {
  background: var(--dark); color: var(--on-dark-soft);
  border-top: 1px solid #24384f; padding: 2rem 0;
  font-size: 0.82rem;
}
.footer-grid { display: grid; grid-template-columns: auto 1fr; gap: 2.5rem; }
.footer-grid p:last-child { text-align: right; max-width: 46em; justify-self: end; }

/* ============ responsive ============ */
@media (max-width: 900px) {
  .hero-grid, .split, .name-grid { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: 1fr; }
  .pipeline li:not(:last-child)::after {
    content: "↓"; right: auto; left: 1.15rem; top: auto; bottom: -1.05rem;
  }
  .cards-3, .sources { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 0.8rem; }
  .footer-grid p:last-child { text-align: left; justify-self: start; }
  .nav-links a:not(.nav-cta) { display: none; }
}