/* Meridian Filtration - shared styles
   Palette and type from brand identity spec.
   Register: engineering spec sheet, not consumer brand. */

:root {
  --navy: #1F3864;
  --brass: #A8763A;
  --paper: #F7F9F8;
  --vellum: #E6ECEC;
  --slate: #33535D;
  --muted: #6C848C;
  --line: #C3D0D2;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--slate);
  font-family: "IBM Plex Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-weight: 400;
  line-height: 1.55;
  font-size: 17px;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / wordmark */
.site-head {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.site-head .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}
.wordmark {
  font-family: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 18px;
  color: var(--navy);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark .dot { color: var(--brass); padding: 0 0.3em; }
.site-head nav a {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  text-transform: uppercase;
}
.site-head nav a:hover { color: var(--navy); }

/* Main */
main { padding: 44px 0 8px; }

h1 {
  font-family: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
  font-weight: 700;
  color: var(--navy);
  font-size: 40px;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 14px;
}
.lede {
  font-size: 20px;
  color: var(--navy);
  line-height: 1.4;
  margin: 0 0 8px;
}

h2 {
  font-family: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
  font-weight: 700;
  color: var(--navy);
  font-size: 24px;
  letter-spacing: -0.005em;
  margin: 40px 0 12px;
  padding-top: 8px;
}

p { margin: 0 0 16px; }

a { color: var(--brass); }
a:hover { color: var(--navy); }

/* Spec / data tables */
table.data {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 20px;
  font-size: 16px;
}
table.data th,
table.data td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.data thead th {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
table.data.spec th {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  color: var(--muted);
  font-weight: 400;
  width: 44%;
  white-space: nowrap;
}
table.data.spec td {
  font-weight: 500;
  color: var(--slate);
}
table.data td.mono,
table.data th.mono {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 14px;
}

/* Capture form */
.capture {
  background: var(--vellum);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 24px;
  margin: 36px 0 8px;
}
.capture p.capture-line {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 16px;
}
.capture form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.capture input[type="email"] {
  flex: 1 1 260px;
  min-width: 0;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-family: inherit;
  font-size: 16px;
  color: var(--slate);
  background: var(--paper);
}
.capture input[type="email"]:focus {
  outline: 2px solid var(--navy);
  outline-offset: 1px;
  border-color: var(--navy);
}
.capture button {
  padding: 11px 20px;
  border: 0;
  border-radius: 3px;
  background: var(--navy);
  color: var(--paper);
  font-family: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
}
.capture button:hover { background: var(--brass); }
.capture .status {
  margin: 12px 0 0;
  font-size: 14px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  color: var(--slate);
  min-height: 1em;
}

/* Related links */
.related {
  margin: 32px 0 0;
  font-size: 15px;
}
.related a { display: inline-block; margin-right: 18px; }

/* Footer */
.site-foot {
  border-top: 1px solid var(--line);
  margin-top: 56px;
  padding: 28px 0 48px;
}
.site-foot .wrap { color: var(--muted); }
.site-foot p {
  font-size: 13px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  letter-spacing: 0.02em;
  margin: 0 0 6px;
}

@media (max-width: 560px) {
  h1 { font-size: 32px; }
  body { font-size: 16px; }
  .site-head nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}