/* ==========================================================================
   ModSystems — shared design system
   Black header/footer bars, teal + gold accents, white canvas, compass mark.
   ========================================================================== */

:root {
  --black: #0b0c0d;
  --white: #ffffff;
  --ink: #17181a;
  --gray: #5c6167;
  --gray-light: #8b9096;
  --line: #e4e2dc;
  --paper: #faf9f6;
  --teal: #0f6f6c;
  --teal-deep: #0a4f4d;
  --teal-tint: #e7f2f1;
  --gold: #b6892f;
  --gold-tint: #f7efdc;
  --radius: 3px;
  --maxw: 1120px;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Source Sans 3", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --head: "Archivo", var(--sans);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--head);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  color: var(--black);
}
h1 { font-size: clamp(2.1rem, 3.6vw, 3.1rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1.1em; max-width: 62ch; color: var(--ink); }
p.lede { font-size: 1.2rem; color: var(--gray); max-width: 56ch; }
.container p { max-width: 62ch; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
section { padding: 72px 0; }
section.tight { padding: 48px 0; }
.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* ---------- header ---------- */
header.site {
  background: var(--black);
  color: var(--white);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 28px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
}
.brand:hover { text-decoration: none; }
.brand .wordmark {
  font-family: var(--head);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}
.brand .wordmark .dot { color: var(--gold); }
.brand .mark { width: 30px; height: 30px; flex: none; }

nav.primary {
  display: flex;
  align-items: center;
  gap: 6px;
}
nav.primary > .navitem { position: relative; }
nav.primary a.toplink {
  display: inline-block;
  padding: 10px 14px;
  color: rgba(255,255,255,0.86);
  font-size: 0.95rem;
  border-radius: var(--radius);
}
nav.primary a.toplink:hover { color: var(--white); text-decoration: none; background: rgba(255,255,255,0.07); }
nav.primary .navitem.current > a.toplink { color: var(--white); }
nav.primary .navitem.current > a.toplink::after {
  content: "";
  display: block;
  height: 2px;
  background: var(--gold);
  margin-top: 6px;
}

.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 220px;
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(0,0,0,0.14);
  padding: 6px;
  z-index: 40;
}
.navitem:hover .dropdown,
.navitem:focus-within .dropdown { display: block; }
.dropdown a {
  display: block;
  padding: 10px 12px;
  color: var(--ink);
  font-size: 0.94rem;
  border-radius: var(--radius);
}
.dropdown a:hover { background: var(--teal-tint); text-decoration: none; color: var(--teal-deep); }

.nav-cta {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid rgba(255,255,255,0.35);
  color: var(--white);
  font-size: 0.92rem;
  border-radius: var(--radius);
  white-space: nowrap;
}
.nav-cta:hover { background: var(--white); color: var(--black); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--white);
  padding: 8px 10px;
  border-radius: var(--radius);
}

@media (max-width: 880px) {
  nav.primary { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--black); flex-direction: column; align-items: stretch; padding: 8px 20px 20px; border-top: 1px solid rgba(255,255,255,0.12); }
  nav.primary.open { display: flex; }
  nav.primary .navitem { width: 100%; }
  nav.primary a.toplink { padding: 12px 6px; }
  .dropdown { position: static; display: block; box-shadow: none; border: none; background: none; padding: 0 0 0 12px; }
  .dropdown a { color: rgba(255,255,255,0.78); }
  .dropdown a:hover { background: none; color: var(--gold); }
  .navitem.current > a.toplink::after { display: none; }
  .nav-toggle { display: inline-block; }
  .nav-cta { display: none; }
}

/* ---------- hero ---------- */
.hero {
  background: var(--white);
  padding: 84px 0 64px;
}
.hero .eyebrow-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.hero .eyebrow-mark svg { width: 22px; height: 22px; }
.hero .eyebrow-mark span { color: var(--teal-deep); font-size: 0.92rem; font-weight: 600; }
.hero h1 { max-width: 18ch; }
.hero .sequence {
  font-family: var(--head);
  font-size: 1.05rem;
  color: var(--teal-deep);
  margin: 26px 0 8px;
}
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-size: 0.96rem;
  font-weight: 600;
}
.btn-primary { background: var(--teal); color: var(--white); }
.btn-primary:hover { background: var(--teal-deep); text-decoration: none; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal-deep); text-decoration: none; }

/* ---------- generic blocks ---------- */
.band-dark {
  background: var(--black);
  color: rgba(255,255,255,0.92);
}
.band-dark h2, .band-dark h3 { color: var(--white); }
.band-dark p { color: rgba(255,255,255,0.72); }
.band-paper { background: var(--paper); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }

.grid {
  display: grid;
  gap: 24px;
}
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 880px) { .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--line);
  padding: 26px 24px;
  border-top: 3px solid var(--teal);
  background: var(--white);
}
.card.gold { border-top-color: var(--gold); }
.card h3 { margin-bottom: 10px; }
.card p { margin-bottom: 0; color: var(--gray); }
.card .num {
  font-family: var(--head);
  color: var(--gold);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}

/* step list */
.steps { counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step .stepnum {
  font-family: var(--head);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--teal);
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--gray); margin-bottom: 0; }

/* pull / quote lines */
.pullseq {
  font-family: var(--head);
  font-size: 1.3rem;
  color: var(--teal-deep);
  border-left: 3px solid var(--gold);
  padding-left: 18px;
  margin: 28px 0;
}

.taglist { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 18px 0; list-style: none; }
.taglist li {
  border: 1px solid var(--line);
  padding: 7px 14px;
  font-size: 0.92rem;
  color: var(--ink);
  border-radius: 999px;
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 700px) { .compare { grid-template-columns: 1fr; } }
.compare .col { padding: 22px; border: 1px solid var(--line); }
.compare .col.no { border-left: 3px solid var(--gray-light); }
.compare .col.yes { border-left: 3px solid var(--teal); }
.compare h3 { font-size: 1rem; text-transform: none; margin-bottom: 12px; }

/* checklist for contact page */
.checklist { list-style: none; padding: 0; margin: 0 0 1.1em; }
.checklist li {
  padding: 10px 0 10px 26px;
  position: relative;
  border-top: 1px solid var(--line);
  color: var(--ink);
}
.checklist li:last-child { border-bottom: 1px solid var(--line); }
.checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

/* mark diagram (pillars) */
.pillar-ring {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 760px) { .pillar-ring { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .pillar-ring { grid-template-columns: 1fr; } }

/* footer */
footer.site {
  background: var(--black);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
footer.site h4 {
  color: var(--white);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
footer.site a { color: rgba(255,255,255,0.68); display: block; padding: 5px 0; font-size: 0.94rem; }
footer.site a:hover { color: var(--gold); text-decoration: none; }
footer.site .brand .wordmark { color: var(--white); }
footer.site p.about { color: rgba(255,255,255,0.6); max-width: 34ch; margin-top: 14px; }
.footer-base {
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

.kicker {
  font-family: var(--head);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 10px;
  display: block;
}