/* KRUXION wireframe — black & white, mobile-first.
   Intentionally minimal: this is for COPY APPROVAL, not visual design. */

:root {
  --ink: #000;
  --paper: #fff;
  --bg: #fafafa;
  --rule: #000;
  --muted: #555;
  --soft: #f0f0f0;
  --max: 1100px;
  --pad: 20px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration: underline; }
a:hover { text-decoration: none; }

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

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; margin: 0 0 0.5em; }
h1 { font-size: 1.85rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }

/* WIREFRAME BANNER */
.wf-banner {
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  font-size: 0.8rem;
  padding: 6px 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.18em;
  text-decoration: none;
}
.logo span { font-weight: 400; letter-spacing: 0; font-size: 0.65rem; display: block; color: var(--muted); }

.nav-toggle { display: inline-block; cursor: pointer; padding: 6px 10px; border: 1px solid var(--rule); font-size: 0.85rem; }
#nav-checkbox { display: none; }

.primary-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  padding: 12px var(--pad) 18px;
}
#nav-checkbox:checked ~ .primary-nav { display: block; }

.primary-nav ul { list-style: none; padding: 0; margin: 0; }
.primary-nav li { border-bottom: 1px solid var(--soft); }
.primary-nav li:last-child { border-bottom: 0; }
.primary-nav a { display: block; padding: 10px 0; text-decoration: none; }
.primary-nav .sub { padding-left: 14px; font-size: 0.95rem; }
.primary-nav .sub-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding: 12px 0 4px; }

.header-cta { display: none; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .primary-nav {
    display: flex !important;
    position: static;
    border: 0;
    padding: 0;
    background: transparent;
  }
  .primary-nav > ul {
    display: flex;
    gap: 18px;
    align-items: center;
  }
  .primary-nav > ul > li { border: 0; position: relative; }
  .primary-nav > ul > li > a { padding: 8px 0; }
  .primary-nav .has-sub > a::after { content: " ▾"; font-size: 0.75em; }
  .primary-nav .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--paper);
    border: 1px solid var(--rule);
    padding: 10px 14px;
    min-width: 240px;
    z-index: 60;
  }
  .primary-nav .has-sub:hover .submenu,
  .primary-nav .has-sub:focus-within .submenu { display: block; }
  .primary-nav .submenu a { padding: 6px 0; font-size: 0.95rem; }
  .primary-nav .sub-label { display: none; }
  .header-cta { display: inline-block; }
}

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-block { display: block; width: 100%; text-align: center; }

/* LAYOUT */
main { max-width: var(--max); margin: 0 auto; padding: 24px var(--pad) 48px; }
.section { padding: 28px 0; border-bottom: 1px solid var(--soft); }
.section:last-child { border-bottom: 0; }
.section h2 { border-bottom: 1px solid var(--rule); padding-bottom: 6px; margin-bottom: 16px; }

/* BREADCRUMBS */
.breadcrumbs { font-size: 0.85rem; color: var(--muted); margin: 0 0 12px; }
.breadcrumbs a { color: var(--muted); }

/* HERO */
.hero { padding: 32px 0 28px; border-bottom: 1px solid var(--rule); }
.hero h1 { margin-bottom: 12px; }
.hero .tagline { font-size: 1.05rem; color: var(--muted); margin-bottom: 18px; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* IMAGE PLACEHOLDER */
.img-ph {
  border: 2px dashed var(--ink);
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 8px,
    rgba(0,0,0,0.03) 8px,
    rgba(0,0,0,0.03) 16px
  );
  padding: 24px;
  margin: 12px 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--ink);
  text-align: center;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.img-ph.tall { min-height: 220px; }
.img-ph.banner { min-height: 180px; }
.img-ph strong { display: block; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; }

/* TILE GRID */
.tile-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 16px 0;
}
@media (min-width: 600px) { .tile-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .tile-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; } }
.tile {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 18px;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.tile:hover { background: var(--soft); }
.tile h3 { margin-bottom: 6px; }
.tile p { margin: 0; font-size: 0.92rem; color: var(--muted); }
.tile .rank { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); display: block; margin-bottom: 6px; }

/* VALUE STRIP */
.strip {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 16px 0;
}
@media (min-width: 700px) { .strip { grid-template-columns: repeat(3, 1fr); } }
.strip div h4 { margin-bottom: 4px; }
.strip div p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* CERTIFICATION CHIPS */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--rule);
  padding: 6px 10px;
  font-size: 0.85rem;
  background: var(--paper);
}

/* TWO COLUMN */
.two-col { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 800px) { .two-col { grid-template-columns: 2fr 1fr; } }

/* TEAM */
.team { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 700px) { .team { grid-template-columns: 1fr 1fr; } }
.team-card { border: 1px solid var(--rule); background: var(--paper); padding: 18px; }
.team-card .img-ph { min-height: 180px; margin-top: 0; }

/* FORMS */
.form-block {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 18px;
  margin: 16px 0;
}
.form-note {
  background: var(--soft);
  border-left: 4px solid var(--ink);
  padding: 8px 12px;
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.form-row { margin-bottom: 12px; }
.form-row label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  background: var(--paper);
  font: inherit;
  color: var(--ink);
}
.form-row textarea { min-height: 100px; resize: vertical; }
.form-row.req label::after { content: " *"; color: var(--ink); }
.form-grid { display: grid; grid-template-columns: 1fr; gap: 0; }
@media (min-width: 700px) { .form-grid { grid-template-columns: 1fr 1fr; column-gap: 14px; } }
.form-grid .form-row.full { grid-column: 1 / -1; }
.form-disclaimer { font-size: 0.8rem; color: var(--muted); margin-top: 8px; }

/* DRAFT / TBD CALLOUT */
.draft-flag {
  border: 2px dashed var(--ink);
  background: var(--paper);
  padding: 12px 14px;
  margin: 12px 0;
  font-size: 0.9rem;
}
.draft-flag strong { display: block; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; margin-bottom: 6px; }

/* RELATED */
.related { background: var(--paper); border: 1px solid var(--rule); padding: 16px; }
.related h3 { font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }
.related ul { list-style: none; padding: 0; margin: 0; }
.related li { padding: 6px 0; border-bottom: 1px solid var(--soft); }
.related li:last-child { border-bottom: 0; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--soft); padding: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 8px 0 0; color: var(--muted); }

/* CTA STRIP */
.cta-strip {
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 24px;
  margin: 24px 0;
  text-align: center;
}
.cta-strip h2 { border: 0; margin-bottom: 8px; }
.cta-strip .cta-row { justify-content: center; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* FOOTER */
.site-footer {
  background: var(--paper);
  color: var(--ink);
  border-top: 2px solid var(--rule);
  padding: 28px var(--pad);
  margin-top: 32px;
  font-size: 0.9rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
@media (min-width: 800px) {
  .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer-col h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 8px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { padding: 4px 0; }
.footer-col a { text-decoration: none; }
.footer-col a:hover { text-decoration: underline; }
.footer-bottom {
  max-width: var(--max);
  margin: 16px auto 0;
  padding-top: 14px;
  border-top: 1px solid var(--soft);
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

/* INDUSTRY LIST */
.industry-block {
  border: 1px solid var(--rule);
  padding: 18px;
  margin-bottom: 14px;
  background: var(--paper);
}
.industry-block h3 { margin-bottom: 6px; }

/* FAKE CHAT WIDGET PLACEHOLDER (visual only — wireframe) */
.chat-bubble {
  position: fixed;
  right: 14px;
  bottom: 14px;
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 10px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 40;
  box-shadow: 4px 4px 0 var(--ink);
}
.chat-bubble small { display: block; font-weight: 400; color: var(--muted); font-size: 0.7rem; }