/* ============================================
   Prism Technologies — Design Tokens
   ============================================ */
:root {
  /* Color */
  --bg: #FAFAF9;
  --surface: #FFFFFF;
  --surface-sunken: #F2F3F6;
  --ink: #171B26;
  --ink-soft: #5B6478;
  --ink-faint: #9498A6;
  --line: #E4E6EC;
  --blue: #2E5CE6;
  --blue-deep: #1E3FA8;
  --violet: #7C5CFF;
  --teal: #17B8A6;
  --amber: #F2A93B;

  /* Type */
  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Layout */
  --maxw: 1180px;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin: 0 0 0.5em;
  color: var(--ink);
}

p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: inherit; text-decoration: none; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-deep);
  display: flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: 0.9em;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--blue);
  display: inline-block;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 249, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}
.brand svg { display: block; }
.nav-links {
  display: flex;
  gap: 34px;
  align-items: center;
}
.nav-links a {
  font-size: 0.92rem;
  color: var(--ink-soft);
  font-weight: 500;
  transition: color 0.15s ease;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); border-color: var(--blue); }
.nav-cta {
  background: var(--ink);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
}
.nav-cta:hover { background: var(--blue-deep); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; }

@media (max-width: 860px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 32px 28px;
    gap: 18px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 88px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.3rem, 4vw, 3.4rem);
  max-width: 11.5ch;
}
.hero .lede {
  font-size: 1.12rem;
  max-width: 46ch;
  color: var(--ink-soft);
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-deep); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn-ghost:hover { border-color: var(--ink-faint); }

/* Prism signature graphic */
.prism-art { width: 100%; height: auto; }

/* Spectrum divider — signature motif reused between sections */
.spectrum-rule {
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--blue) 0%, var(--violet) 34%, var(--teal) 66%, var(--amber) 100%);
  border: none;
  border-radius: 2px;
  opacity: 0.85;
}

/* ---------- Sections ---------- */
section { padding: 84px 0; }
.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head h2 { font-size: clamp(1.7rem, 2.6vw, 2.3rem); }

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.pillar {
  background: var(--surface);
  padding: 32px 26px;
  position: relative;
}
.pillar::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
}
.pillar:nth-child(1)::before { background: var(--blue); }
.pillar:nth-child(2)::before { background: var(--violet); }
.pillar:nth-child(3)::before { background: var(--teal); }
.pillar:nth-child(4)::before { background: var(--amber); }
.pillar h3 { font-size: 1.05rem; margin-bottom: 0.4em; }
.pillar p { font-size: 0.92rem; margin: 0; }

@media (max-width: 900px) {
  .pillars { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .pillars { grid-template-columns: 1fr; }
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
}
.card h3 {
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card .tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 3px 10px;
}
.card ul { margin: 14px 0 0; padding-left: 20px; }
.card li { color: var(--ink-soft); font-size: 0.95rem; margin-bottom: 6px; }

@media (max-width: 780px) {
  .card-grid { grid-template-columns: 1fr; }
}

/* Values strip */
.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.value h4 {
  font-size: 1rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--ink);
}
.value p { font-size: 0.9rem; }

@media (max-width: 900px) {
  .values { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .values { grid-template-columns: 1fr; }
}

/* Product block */
.product-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px;
  background: var(--surface);
  margin-bottom: 28px;
}
.product-block .top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}
.product-block h3 { font-size: 1.6rem; }
.product-block .desc { max-width: 60ch; }
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 28px;
  margin-top: 24px;
  padding: 0;
  list-style: none;
}
.feature-list li {
  color: var(--ink);
  font-size: 0.93rem;
  padding-left: 20px;
  position: relative;
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 4.5px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--blue);
}
.product-block.job-guardian .feature-list li::before { background: var(--violet); }

@media (max-width: 640px) {
  .feature-list { grid-template-columns: 1fr; }
}

/* CTA band */
.cta-band {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: 56px;
  text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.7); max-width: 50ch; margin-left: auto; margin-right: auto; }
.cta-band .btn-primary { margin-top: 8px; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.info-item {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}
.info-item h4 {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.info-item p { color: var(--ink); margin: 0; }

form.form { display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}
.field input, .field textarea, .field select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--surface);
  color: var(--ink);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.85rem; color: var(--ink-faint); margin-top: -6px; }

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* About page specifics */
.timeline-line {
  border-left: 2px solid var(--line);
  padding-left: 28px;
  margin-left: 6px;
}
.timeline-item { position: relative; padding-bottom: 32px; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -33px; top: 4px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--blue);
}
.timeline-item h4 { font-size: 1rem; margin-bottom: 4px; }
.timeline-item .date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  text-transform: uppercase;
}

/* Footer */
footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 36px;
  margin-top: 40px;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
footer .foot-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}
footer .foot-links { display: flex; gap: 24px; }
footer .foot-links a { font-size: 0.88rem; color: var(--ink-soft); }
footer .copyright { font-size: 0.82rem; color: var(--ink-faint); }

@media (max-width: 640px) {
  .hero .wrap { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .cta-band { padding: 40px 24px; }
  .product-block { padding: 28px; }
}