/* ==========================================================
   PRAEVIOUM — BRAND SYSTEM
   All brand tokens live in :root. Swap the palette in one place.
   The brand name "Praevioum" is real text in the markup so search
   engines index it; rename via global find-replace across the
   HTML files if the company is renamed (see handoff §3).
   ========================================================== */
:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #1C1C1C;
  --accent-copper: #C8834A;
  --accent-amber: #E8A060;
  --text-primary: #F0EDE8;
  --text-secondary: #9A9490;
  --line-copper: #8B5E3C;
  --glow-copper: rgba(200, 131, 74, 0.3);

  --font-display: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --font-body: 'Inter', 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', monospace;

  --max-width: 1180px;
  --section-pad: clamp(5rem, 12vh, 9rem);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.0625rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-copper); text-decoration: none; }
a:hover, a:focus-visible { color: var(--accent-amber); }
:focus-visible { outline: 1px solid var(--accent-copper); outline-offset: 4px; }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 clamp(1.5rem, 5vw, 4rem); }
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent-copper); color: var(--bg-primary);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono); font-size: 0.75rem;
  letter-spacing: 0.2em; text-transform: uppercase;
  z-index: 200;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.15; color: var(--text-primary); }
h1 { font-size: clamp(2.5rem, 7vw, 5rem); font-weight: 300; letter-spacing: 0.14em; text-transform: uppercase; }
h1.brand { font-size: clamp(3rem, 9vw, 6.5rem); letter-spacing: 0.18em; }
h2 { font-size: clamp(2rem, 4.5vw, 3.25rem); letter-spacing: 0.02em; }
h3 { font-size: clamp(1.35rem, 2.4vw, 1.75rem); color: var(--accent-copper); }
p  { max-width: 62ch; color: var(--text-primary); }
.muted { color: var(--text-secondary); }
.lead {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  font-weight: 300;
  color: var(--text-primary);
  margin-top: 1.5rem;
  max-width: 42ch;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-copper);
  display: block;
  margin-bottom: 1.25rem;
}
.tagline {
  font-family: var(--font-body);
  font-weight: 300;
  letter-spacing: 0.55em;
  text-transform: uppercase;
  color: var(--accent-copper);
  font-size: clamp(0.75rem, 1.6vw, 1rem);
  text-indent: 0.55em;
}

/* ---------- Signature hairline: line to luminous point (Logo 9B motif) ---------- */
.signal-rule {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-copper) 12%, var(--line-copper) 88%, transparent);
  border: 0;
  margin: 3.5rem auto;
  max-width: 480px;
}
.signal-rule::after {
  content: "";
  position: absolute;
  right: 10%;
  top: 50%;
  width: 7px; height: 7px;
  transform: translate(50%, -50%);
  border-radius: 50%;
  background: var(--accent-amber);
  box-shadow: 0 0 14px 3px var(--glow-copper);
}
.signal-rule--left { margin-left: 0; max-width: 320px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(139, 94, 60, 0.35);
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--text-primary);
}
.nav-brand img { width: 2.4rem; height: 2.4rem; }
.nav-brand-name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.3rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  border-bottom: 1px solid transparent;
}
.nav-links a:hover, .nav-links a:focus-visible {
  color: var(--accent-copper);
  border-bottom-color: var(--line-copper);
}
.nav-links a[aria-current="page"] {
  color: var(--accent-copper);
  border-bottom-color: var(--accent-copper);
}
.nav-toggle-input { position: absolute; opacity: 0; pointer-events: none; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 0.6rem 0;
}
.nav-toggle span {
  width: 26px; height: 1px;
  background: var(--accent-copper);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 4.5rem; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--line-copper);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-links li { border-top: 1px solid rgba(139, 94, 60, 0.25); }
  .nav-links a { display: block; padding: 1.1rem clamp(1.5rem, 5vw, 4rem); }
  .nav-toggle-input:checked ~ .nav-links { max-height: 30rem; }
  .nav-toggle-input:checked ~ .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle-input:checked ~ .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-toggle-input:checked ~ .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- Sections ---------- */
section { padding: var(--section-pad) 0; }
section:nth-of-type(even) { background: var(--bg-secondary); }

/* ---------- Hero (home only) ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding-top: 6rem;
}
.hero-watermark {
  position: absolute;
  right: -12%;
  top: 50%;
  transform: translateY(-50%);
  width: min(60vw, 760px);
  opacity: 0.10;
  pointer-events: none;
  user-select: none;
}
.hero-inner { position: relative; width: 100%; }
.hero-mark { width: clamp(120px, 18vw, 190px); margin: 0 auto 2.5rem; }
.hero p.lede {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 300;
  margin: 0 auto 1.25rem;
  max-width: 30ch;
}
.hero p.sub { margin: 0 auto 3rem; color: var(--text-secondary); }

/* ---------- Page header (subpages) ---------- */
.page-header {
  padding: calc(var(--section-pad) + 4rem) 0 var(--section-pad);
  position: relative;
  overflow: hidden;
}
.page-header .eyebrow { margin-bottom: 1.5rem; }
.page-header h1 { max-width: 18ch; }
.page-header .lead { margin-top: 2rem; }
.page-header-watermark {
  position: absolute;
  right: -20%;
  top: 60%;
  transform: translateY(-50%);
  width: min(50vw, 520px);
  opacity: 0.07;
  pointer-events: none;
  user-select: none;
}
.page-header + section { background: var(--bg-primary); }
.page-header + section + section { background: var(--bg-secondary); }
.page-header + section + section + section { background: var(--bg-primary); }

/* ---------- CTAs ---------- */
.cta-row { display: flex; gap: 1.25rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; }
.cta-row--left { justify-content: flex-start; }
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding: 1.05rem 2.6rem;
  border: 1px solid var(--accent-copper);
  color: var(--accent-copper);
  background: transparent;
  cursor: pointer;
  transition: box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  border-radius: 0;
}
.btn:hover, .btn:focus-visible {
  box-shadow: 0 0 20px var(--glow-copper);
  color: var(--accent-amber);
  border-color: var(--accent-amber);
}
.btn--solid { background: var(--accent-copper); color: var(--bg-primary); }
.btn--solid:hover, .btn--solid:focus-visible { background: var(--accent-amber); color: var(--bg-primary); }

/* ---------- Custom spiral bullets (Logo 9B) ---------- */
ul.signal-list { list-style: none; }
ul.signal-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1.1rem;
  max-width: 62ch;
}
ul.signal-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 19px; height: 19px;
  background: url('/assets/logo9B_bullet_64px.png') no-repeat center / contain;
}

/* ---------- Capability grid ---------- */
.grid {
  display: grid;
  gap: 2.5rem;
  margin-top: 3.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
  border: 1px solid rgba(139, 94, 60, 0.35);
  padding: 2.25rem 2rem;
  background: rgba(10, 10, 10, 0.4);
}
.card h3 { margin-bottom: 0.9rem; }
.card p { color: var(--text-secondary); font-size: 0.98rem; }
.card .metric {
  font-family: var(--font-mono);
  color: var(--accent-amber);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  display: block;
  margin-top: 1.4rem;
}

/* ---------- Manus placeholder zones ---------- */
.manus-slot {
  border: 1px dashed var(--line-copper);
  padding: 3.5rem 2rem;
  margin-top: 3rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ---------- Two-column ---------- */
.split { display: grid; gap: 3.5rem; grid-template-columns: 1fr; align-items: start; margin-top: 3rem; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } }

/* ---------- Brand statements ---------- */
.statements { margin-top: 3rem; display: grid; gap: 0; }
.statements blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 300;
  padding: 2.2rem 0;
  border-top: 1px solid rgba(139, 94, 60, 0.35);
  color: var(--text-primary);
}
.statements blockquote:last-child { border-bottom: 1px solid rgba(139, 94, 60, 0.35); }

/* ---------- Teaser (home cross-links) ---------- */
.teaser-link {
  display: inline-block;
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-copper);
  border-bottom: 1px solid var(--line-copper);
  padding-bottom: 0.35rem;
}
.teaser-link::after { content: " →"; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.breadcrumb li:not(:last-child)::after { content: "  /"; color: var(--line-copper); margin-left: 0.6rem; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent-copper); }
.breadcrumb [aria-current="page"] { color: var(--accent-copper); }

/* ---------- FAQ ---------- */
.faq details {
  border-top: 1px solid rgba(139, 94, 60, 0.35);
  padding: 1.4rem 0;
}
.faq details:last-of-type { border-bottom: 1px solid rgba(139, 94, 60, 0.35); }
.faq summary {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  cursor: pointer;
  color: var(--text-primary);
  list-style: none;
  position: relative;
  padding-right: 2.5rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0; top: 0;
  color: var(--accent-copper);
  font-family: var(--font-mono);
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 1rem; color: var(--text-secondary); }

/* ---------- Contact form ---------- */
.contact-form { margin-top: 3rem; max-width: 640px; display: grid; gap: 1.6rem; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.6rem;
}
.field input, .field textarea, .field select {
  width: 100%;
  background: transparent;
  border: 1px solid rgba(139, 94, 60, 0.5);
  border-radius: 0;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.95rem 1.1rem;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent-copper);
  box-shadow: 0 0 20px var(--glow-copper);
}

/* ---------- Metrics / counters (home) ---------- */
.metrics { background: var(--bg-secondary); }
.metrics-grid {
  display: grid;
  gap: 2.5rem;
  margin-top: 3.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.metric-block {
  padding: 2rem 0;
  border-top: 1px solid rgba(139, 94, 60, 0.35);
}
.metric-value {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1;
  color: var(--accent-copper);
  letter-spacing: 0.02em;
}
.metric-label {
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-secondary);
  max-width: 26ch;
}

/* ---------- Utility ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line-copper);
  padding: 3.5rem 0 2.5rem;
  background: var(--bg-primary);
}
.footer-inner {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 700px) {
  .footer-inner { grid-template-columns: 1fr auto; align-items: end; }
}
.footer-brand {
  font-family: var(--font-display);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-weight: 300;
  font-size: 1.1rem;
}
.footer-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-copper);
  margin-top: 0.4rem;
}
.footer-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
}
.footer-nav a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.footer-nav a:hover, .footer-nav a:focus-visible { color: var(--accent-copper); }
footer .footer-legal {
  grid-column: 1 / -1;
  padding-top: 2rem;
  border-top: 1px solid rgba(139, 94, 60, 0.2);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}