:root {
  --ink: #0F1B24;
  --paper: #F1EDE4;
  --paper-raised: #FFFFFF;
  --brass: #B8863B;
  --brass-dark: #8F6528;
  --steel: #2C6E7F;
  --line: #D8D0BF;
  --line-dark: #1E2E3A;
  --muted: #5C6B73;
  --danger: #A6432F;
  --ok: #3E6B4F;

  --font-display: 'Archivo Expanded', 'Archivo', sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 3px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* blueprint grid backdrop for hero/section headers */
.blueprint {
  background-color: var(--line-dark);
  background-image:
    linear-gradient(rgba(241,237,228,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(241,237,228,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--paper);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.08;
  margin: 0;
}

h1 { font-size: clamp(32px, 5vw, 56px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 19px; }

p { line-height: 1.55; color: var(--muted); margin: 0; }

/* nav */
.navbar {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}
.navbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.brand .b2b { color: var(--ink); }
.brand .gulf { color: var(--brass); }
.navlinks { display: flex; gap: 24px; align-items: center; font-size: 14px; font-weight: 600; }
.navlinks a:hover { color: var(--brass); }

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 11px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-brass { background: var(--brass); color: var(--ink); }
.btn-brass:hover { background: var(--brass-dark); color: var(--paper); }
.btn-outline { background: transparent; border-color: var(--line-dark); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }

/* cards — styled like spec sheets */
.card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.card-link {
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}
.card-link:hover {
  border-color: var(--brass);
  box-shadow: 0 2px 10px rgba(15,27,36,0.08);
  transform: translateY(-1px);
}

.spec-row {
  display: flex;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}
.spec-value {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink);
  font-weight: 500;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge-verified { border-color: var(--ok); color: var(--ok); background: rgba(62,107,79,0.07); }
.badge-open { border-color: var(--steel); color: var(--steel); background: rgba(44,110,127,0.07); }
.badge-pro { border-color: var(--brass); color: var(--brass-dark); background: rgba(184,134,59,0.1); }

/* forms */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--steel);
  outline-offset: 1px;
}

.grid {
  display: grid;
  gap: 16px;
}
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }

.section { padding: 56px 0; }

.error-text { color: var(--danger); font-size: 13px; }
.muted-link { color: var(--steel); font-size: 14px; font-weight: 600; }

/* static-site specific helpers */
.hidden { display: none !important; }
.role-toggle { display: flex; gap: 10px; margin-bottom: 24px; }
.card-link { display: block; }
.tabs { display: flex; gap: 10px; margin-bottom: 24px; }
.filters-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.filters-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 480px; margin-bottom: 28px; }
@media (max-width: 640px) {
  .filters-3, .filters-2 { grid-template-columns: 1fr; }
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 12px;
  color: var(--muted);
  pointer-events: none;
}
.search-box input {
  width: 100%;
  padding-left: 38px !important;
}

/* Side ad rails — 300x240 horizontal banners, FOUR stacked per side (8 total).
   Content wrap is 1120px max-width (560px from center). Rails sit outside
   that with a 24px gap: 560 + 24 + 300(banner width) = 884px from center.
   Absolute (not fixed) positioning — a 4-banner column is ~1050px tall,
   too tall to pin in place without cutting off the bottom banners on
   shorter screens, so this scrolls naturally with the page instead. */
.ad-rail-column {
  position: absolute;
  top: 140px;
  width: 300px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ad-rail-column.ad-rail-left { left: max(12px, calc(50% - 884px)); }
.ad-rail-column.ad-rail-right { right: max(12px, calc(50% - 884px)); }
.ad-rail-slot {
  display: block;
  width: 300px;
  height: 240px;
  border: 1px dashed var(--line);
  border-radius: 2px;
  background: var(--paper-raised);
  text-align: center;
  padding: 20px 12px;
  box-sizing: border-box;
}
.ad-rail-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
@media (max-width: 1900px) {
  .ad-rail-column { display: none; }
}