/* ============================================================================
   Northbeam Consulting — site-local styles
   Scoped under .theme-northbeam so it never affects other templates.
   Builds on shared/styles.css tokens; adds only this site's layout + skin.
   ============================================================================ */

.theme-northbeam {
  /* Skin: deep teal-ink — credible + distinct from the default consulting blue. */
  --accent: #0E7C7B;
  --accent-soft: #D7EEED;
  --accent-contrast: #FFFFFF;
  --accent-deep: #0B5E5C;   /* darker stop for gradients / hovers */
  --ink: #0F172A;           /* near-black for dark bands */
  --tracking-tight: -0.02em;
}

/* ---- Eyebrow label ---- */
.theme-northbeam .eyebrow {
  display: inline-block;
  color: var(--accent);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---- Sticky nav that gains a hairline shadow once scrolled ---- */
.theme-northbeam .nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.theme-northbeam .nav.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04), 0 6px 20px rgba(15, 23, 42, 0.05);
}
.theme-northbeam .nav__links a[aria-current="page"] { color: var(--accent); }

/* Keep anchor targets clear of the sticky nav on in-page jumps */
.theme-northbeam [id] { scroll-margin-top: 84px; }

/* CTA button rows: this template's hero__actions sit outside .hero, so the
   shared flex rule never applies — establish the flex context locally. */
.theme-northbeam .hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
@media (min-width: 768px) {
  .theme-northbeam .nb-dark .hero__actions { justify-content: flex-end; }
}

/* ---- Tighten display headings (typography-as-brand) ---- */
.theme-northbeam h1,
.theme-northbeam h2 { letter-spacing: var(--tracking-tight); }

/* ============================================================================
   HERO
   ============================================================================ */
.theme-northbeam .nb-hero { padding-block: var(--space-10) var(--space-9); }
.theme-northbeam .nb-hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-8);
  align-items: center;
}
.theme-northbeam .nb-hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  line-height: 1.04;
  margin: var(--space-3) 0 var(--space-4);
  max-width: 16ch;
}
.theme-northbeam .nb-hero .hero__lede { max-width: 52ch; }

/* Inline proof strip under the CTAs */
.theme-northbeam .nb-proofstrip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: var(--fs-sm);
}
.theme-northbeam .nb-proofstrip b { color: var(--text); font-weight: 700; }

/* Abstract CSS-only hero visual: gradient mesh + dot grid + floating KPI card */
.theme-northbeam .nb-hero__visual {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(90% 80% at 85% 12%, var(--accent-soft) 0%, transparent 55%),
    radial-gradient(70% 70% at 12% 90%, rgba(14,124,123,0.35) 0%, transparent 60%),
    linear-gradient(140deg, var(--accent) 0%, var(--accent-deep) 100%);
  box-shadow: var(--shadow-lg);
}
.theme-northbeam .nb-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.18) 1px, transparent 1.4px);
  background-size: 22px 22px;
  mask-image: linear-gradient(135deg, #000, transparent 75%);
}
.theme-northbeam .nb-kpi {
  position: absolute;
  left: var(--space-5);
  bottom: var(--space-5);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-4) var(--space-5);
  min-width: 200px;
}
.theme-northbeam .nb-kpi__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-2xl);
  color: var(--accent);
  line-height: 1;
}
.theme-northbeam .nb-kpi__label { color: var(--text-muted); font-size: var(--fs-xs); margin-top: 4px; }

/* ============================================================================
   TRUST / LOGO WALL
   ============================================================================ */
.theme-northbeam .nb-trust { padding-block: var(--space-7); }
.theme-northbeam .nb-trust__label {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-5);
}
.theme-northbeam .logo-wall__item {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-lg);
  letter-spacing: 0.02em;
  color: var(--text-muted);
  text-align: center;
  opacity: 1;
}

/* ============================================================================
   PROOF / OUTCOME METRICS  (proof-as-headline)
   ============================================================================ */
.theme-northbeam .nb-proof { display: grid; gap: var(--space-6); }
.theme-northbeam .nb-proof__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.theme-northbeam .nb-metric {
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.theme-northbeam .nb-metric__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1;
  color: var(--accent);
  letter-spacing: var(--tracking-tight);
}
.theme-northbeam .nb-metric__cap { color: var(--text-muted); font-size: var(--fs-sm); margin-top: var(--space-2); }

/* ============================================================================
   SIGNATURE — "The Northbeam Operating System" method strip
   ============================================================================ */
.theme-northbeam .nb-os { position: relative; }
/* Connecting line behind the node row; draws left→right on reveal. */
.theme-northbeam .nb-os__track {
  position: absolute;
  top: 24px;            /* vertical center of the 48px node */
  left: 12.5%;          /* first node center across 4 columns */
  right: 12.5%;         /* last node center */
  height: 2.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 1.5s ease;
  z-index: 0;
}
.theme-northbeam .nb-os.is-visible .nb-os__track { transform: scaleX(1); }

.theme-northbeam .nb-os__steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}
.theme-northbeam .nb-step { position: relative; z-index: 1; text-align: center; }
.theme-northbeam .nb-step__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-lg);
  margin: 0 auto var(--space-3);
  border: 2px solid var(--surface);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.theme-northbeam .nb-step h3 { font-size: var(--fs-lg); margin-bottom: var(--space-1); }
.theme-northbeam .nb-step p { color: var(--text-muted); font-size: var(--fs-sm); }

/* ============================================================================
   SERVICE CARDS
   ============================================================================ */
.theme-northbeam .nb-svc {
  display: block;
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.theme-northbeam a.nb-svc:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.theme-northbeam .nb-svc__icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.theme-northbeam .nb-svc__icon svg { width: 24px; height: 24px; }
.theme-northbeam .nb-svc h3 { font-size: var(--fs-lg); margin-bottom: var(--space-2); }
.theme-northbeam .nb-svc p { color: var(--text-muted); font-size: var(--fs-sm); margin: 0; }
.theme-northbeam .nb-svc__more {
  display: inline-block;
  margin-top: var(--space-4);
  color: var(--accent);
  font-weight: 600;
  font-size: var(--fs-sm);
}

/* Service detail list (services page) */
.theme-northbeam .nb-svc-detail { display: grid; gap: var(--space-3); margin: var(--space-3) 0 0; padding: 0; list-style: none; }
.theme-northbeam .nb-svc-detail li { position: relative; padding-left: var(--space-6); color: var(--text-muted); }
.theme-northbeam .nb-svc-detail li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 8px; height: 8px; border-radius: 2px; background: var(--accent);
}

/* ============================================================================
   CASE-STUDY CARDS  (metric-led)
   ============================================================================ */
.theme-northbeam .nb-case {
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.theme-northbeam .nb-case:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.theme-northbeam .nb-case__metric {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 4.5vw, 3rem);
  line-height: 1;
  color: var(--accent);
  letter-spacing: var(--tracking-tight);
}
.theme-northbeam .nb-case__sector {
  align-self: flex-start;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
}
.theme-northbeam .nb-case h3 { font-size: var(--fs-lg); }
.theme-northbeam .nb-case p { color: var(--text-muted); font-size: var(--fs-sm); margin: 0; }

/* Sector filter chips (work page) */
.theme-northbeam .nb-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.theme-northbeam .nb-chip {
  min-height: 44px;
  padding: 0 var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.theme-northbeam .nb-chip[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

/* ============================================================================
   DARK CLOSING BAND
   ============================================================================ */
.theme-northbeam .nb-dark {
  background: var(--ink);
  color: #E2E8F0;
  border-radius: 0;
}
.theme-northbeam .nb-dark h2 { color: #fff; }
.theme-northbeam .nb-dark p { color: #94A3B8; }
.theme-northbeam .nb-dark .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.35); }
.theme-northbeam .nb-dark .btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

/* ============================================================================
   CONTACT FORM
   ============================================================================ */
.theme-northbeam .nb-form { display: grid; gap: var(--space-4); }
.theme-northbeam .nb-field { display: grid; gap: var(--space-2); }
.theme-northbeam .nb-field label { font-weight: 600; font-size: var(--fs-sm); }
.theme-northbeam .nb-field input,
.theme-northbeam .nb-field textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}
.theme-northbeam .nb-field input:focus-visible,
.theme-northbeam .nb-field textarea:focus-visible {
  outline: 3px solid var(--accent-soft);
  border-color: var(--accent);
}
.theme-northbeam .nb-form__ok {
  display: block; /* empty live region stays in the accessibility tree (zero height until shown) */
}
.theme-northbeam .nb-form__ok.is-shown {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-weight: 600;
}

/* ============================================================================
   REVEAL-ON-SCROLL (matches the package convention)
   ============================================================================ */
.theme-northbeam .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}
.theme-northbeam .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .theme-northbeam .reveal { opacity: 1; transform: none; transition: none; }
  .theme-northbeam .nb-os__track { transition: none; transform: none; }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 1024px) {
  .theme-northbeam .nb-proof__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .theme-northbeam .nb-hero__grid { grid-template-columns: 1fr; }
  .theme-northbeam .nb-hero__visual { order: -1; aspect-ratio: 16 / 10; }
  .theme-northbeam .nb-os__steps { grid-template-columns: repeat(2, 1fr); gap: var(--space-8) var(--space-6); }
  .theme-northbeam .nb-os__track { display: none; }   /* line only reads on the desktop horizontal layout */
}
@media (max-width: 560px) {
  .theme-northbeam .nb-proof__grid { grid-template-columns: 1fr; }
  .theme-northbeam .nb-os__steps { grid-template-columns: 1fr; }
}

/* Real-photo hero panel (keeps the floating KPI card on top) */
.theme-northbeam .nb-hero__visual.has-photo { background-size: cover; background-position: center; }
.theme-northbeam .nb-hero__visual.has-photo::after { display: none; }