/* ============================================================
   Vaxum / Lablite — Design tokens
   ============================================================ */
:root {
  --bg: #F1F3F1;
  --surface: #FFFFFF;
  --ink: #16221E;
  --ink-soft: #47554F;
  --ink-faint: #7C8B84;
  --brand: #1F6F63;
  --brand-dark: #123F38;
  --brand-tint: #E4EEEB;
  --accent: #E08B1D;
  --accent-dark: #B36E13;
  --border: #C9D2CC;
  --border-strong: #9FADA6;

  --font-display: 'Archivo', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

@media (prefers-reduced-motion: no-preference) {
  :root { --transition: 180ms ease; }
}
@media (prefers-reduced-motion: reduce) {
  :root { --transition: 0ms; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--brand); }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2.5px solid var(--accent);
  outline-offset: 3px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
h1 { font-weight: 700; font-size: clamp(2.1rem, 4.4vw, 3.4rem); }
h2 { font-weight: 700; font-size: clamp(1.55rem, 2.6vw, 2.15rem); }
h3 { font-weight: 600; font-size: 1.15rem; }

p { margin: 0 0 1em; color: var(--ink-soft); max-width: 62ch; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: 0.01em;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ---------- Nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(241, 243, 241, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.site-nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
}
.wordmark {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.wordmark img {
  height: 64px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.98rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--accent);
}
.nav-cta {
  background: var(--brand);
  color: #fff !important;
  padding: 10px 18px;
  border-radius: 3px;
  font-weight: 600;
  border: none !important;
}
.nav-cta:hover { background: var(--brand-dark); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  width: 42px;
  height: 42px;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: '';
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  margin: 4px auto;
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 88px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 18px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-top: 1px solid var(--border); }
  .nav-links li:first-child { border-top: none; }
  .nav-links a { display: block; padding: 14px 0; }
  .nav-cta { display: inline-block; margin-top: 10px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 13px 22px;
  border-radius: 3px;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.btn-primary { background: var(--accent); color: #201400; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--ink); background: var(--surface); }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections / general ---------- */
section { padding: clamp(56px, 8vw, 104px) 0; }
.section-border-top { border-top: 1px solid var(--border); }
.eyebrow-line {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--brand);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin-bottom: 14px;
}
.eyebrow-line::before {
  content: '';
  width: 22px;
  height: 1px;
  background: var(--brand);
}

.two-col {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
@media (max-width: 880px) {
  .two-col { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
}
.stat-strip div {
  padding: 26px var(--gutter);
  border-left: 1px solid var(--border);
}
.stat-strip div:first-child { border-left: none; }
.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--brand-dark);
  display: block;
  margin-bottom: 4px;
}
.stat-label { font-size: 0.92rem; color: var(--ink-soft); margin: 0; }
@media (max-width: 700px) {
  .stat-strip { grid-template-columns: 1fr; }
  .stat-strip div { border-left: none; border-top: 1px solid var(--border); padding: 20px var(--gutter); }
  .stat-strip div:first-child { border-top: none; }
}

/* ---------- Kit diagram ---------- */
.kit-diagram {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.kit-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 26px;
  position: relative;
}
.kit-card .kit-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.kit-card .kit-code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--brand);
  background: var(--brand-tint);
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 14px;
}
.kit-card ul { margin: 0; padding-left: 1.1em; color: var(--ink-soft); font-size: 0.94rem; }
.kit-card li { margin-bottom: 4px; }
@media (max-width: 880px) {
  .kit-diagram { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border-strong);
  padding: 44px 0;
  background: var(--surface);
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
}
footer p { margin: 0; font-size: 0.9rem; color: var(--ink-faint); }
.footer-links { display: flex; gap: 20px; list-style: none; padding: 0; margin: 0; }
.footer-links a { color: var(--ink-soft); font-size: 0.9rem; text-decoration: none; }
.footer-links a:hover { color: var(--brand); }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--brand-dark);
  color: #fff;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #C9DAD5; }
.cta-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(255,255,255,0.18);
  margin-top: 36px;
  border-radius: 4px;
  overflow: hidden;
}
.cta-split > div { background: var(--brand-dark); padding: 30px; }
.cta-split h3 { color: #fff; margin-bottom: 8px; }
.cta-split p { color: #C9DAD5; font-size: 0.94rem; }
@media (max-width: 700px) {
  .cta-split { grid-template-columns: 1fr; }
}

/* ---------- Timeline (roadmap) ---------- */
.timeline { margin-top: 40px; }
.timeline-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
}
.timeline-item:first-child { border-top: none; }
.timeline-item .phase {
  font-family: var(--font-mono);
  color: var(--brand);
  font-size: 0.85rem;
  padding-top: 3px;
}
@media (max-width: 600px) {
  .timeline-item { grid-template-columns: 1fr; gap: 6px; }
}

/* ---------- Forms ---------- */
.form-toggle {
  display: inline-flex;
  border: 1.5px solid var(--border-strong);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 32px;
}
.form-toggle button {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.94rem;
  background: var(--surface);
  color: var(--ink-soft);
  border: none;
  padding: 12px 22px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.form-toggle button + button { border-left: 1px solid var(--border-strong); }
.form-toggle button[aria-selected="true"] {
  background: var(--brand);
  color: #fff;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.field-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) {
  .field-grid { grid-template-columns: 1fr; }
}
label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
input, textarea, select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 11px 13px;
  border: 1.5px solid var(--border-strong);
  border-radius: 3px;
  background: var(--surface);
  color: var(--ink);
}
textarea { resize: vertical; min-height: 110px; }
::placeholder { color: var(--ink-faint); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: clamp(32px, 6vw, 72px);
}
@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info .card + .card { margin-top: 18px; }
.contact-info h3 { margin-bottom: 8px; }
.contact-info p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Product spec sheet ---------- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  font-size: 0.95rem;
}
.spec-table tr { border-top: 1px solid var(--border); }
.spec-table tr:first-child { border-top: none; }
.spec-table td { padding: 12px 0; }
.spec-table td:first-child { color: var(--ink-faint); width: 42%; }
.spec-table td:last-child { font-family: var(--font-mono); color: var(--ink); }

.notice {
  border: 1px dashed var(--border-strong);
  border-radius: 4px;
  padding: 16px 20px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  background: var(--brand-tint);
}