/*
 * Expertise & Clients page — creative layer on top of the core theme,
 * deliberately matching the same visual language as assets/css/about-page.css
 * and assets/css/services-page.css (glow orbs, running ribbon, card
 * hover-lift, glow CTA button) but under its own .expertise-page scope with
 * its own class names, so this page can be edited independently without
 * any risk to either of those pages.
 *
 * IMPORTANT: this theme ships a pre-compiled, purged Tailwind build
 * (assets/css/tailwind.css) rather than a live JIT build — only the exact
 * utility classes already used elsewhere in the theme exist in that file.
 * Any new class combination (arbitrary values, unused breakpoint/utility
 * pairs, etc.) silently does nothing. So layout that isn't already proven
 * safe elsewhere in the theme is written here as real, hand-authored CSS
 * instead of guessed-at Tailwind classes.
 */

.expertise-page {
  overflow-x: clip;
}

.expertise-section-head {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

/* ---------------------------------------------------------------------
   Hero
   ------------------------------------------------------------------- */

.expertise-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(60% 90% at 15% 0%, hsl(var(--accent) / 0.14), transparent 60%),
    radial-gradient(50% 70% at 100% 30%, hsl(var(--accent) / 0.10), transparent 60%);
}

.expertise-hero-inner {
  position: relative;
  padding-top: 3.5rem;
  padding-bottom: 4rem;
}
@media (min-width: 768px) {
  .expertise-hero-inner { padding-top: 4.5rem; padding-bottom: 5.5rem; }
}

.expertise-glow-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(70px);
  background: radial-gradient(circle, hsl(var(--accent) / 0.35), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.expertise-glow-orb--1 { width: 420px; height: 420px; top: -140px; left: -100px; }
.expertise-glow-orb--2 { width: 380px; height: 380px; bottom: -160px; right: -80px; }

.expertise-hero-content {
  position: relative;
  z-index: 1;
}

.expertise-hero-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.expertise-hero-title {
  max-width: 44rem;
}
.expertise-hero-sub {
  max-width: 38rem;
  font-size: 1.0625rem;
}
@media (min-width: 768px) {
  .expertise-hero-sub { font-size: 1.1875rem; }
}

/* ---------------------------------------------------------------------
   Running ribbon banner — same infinite-scroll marquee technique used
   on the About/Services pages and the site's breaking-news ticker.
   ------------------------------------------------------------------- */

.expertise-ribbon-banner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, hsl(var(--accent)), hsl(var(--accent) / 0.82) 50%, hsl(var(--accent)));
  box-shadow: 0 0 30px hsl(var(--accent) / 0.35), inset 0 0 40px hsl(0 0% 0% / 0.08);
}

.expertise-ribbon-viewport {
  mask-image: linear-gradient(to right, transparent 0, black 40px, black calc(100% - 40px), transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0, black 40px, black calc(100% - 40px), transparent 100%);
  padding: 0.85rem 0;
}
.expertise-ribbon-track {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  width: max-content;
  animation: expertise-ribbon-scroll 26s linear infinite;
}
.expertise-ribbon-viewport:hover .expertise-ribbon-track { animation-play-state: paused; }
.expertise-ribbon-item {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: hsl(var(--accent-foreground));
  padding: 0 1.5rem;
}
.expertise-ribbon-sep {
  color: hsl(var(--accent-foreground) / 0.6);
  font-size: 0.9rem;
}
@keyframes expertise-ribbon-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------------------------------------------------------------
   Expertise / partner cards
   ------------------------------------------------------------------- */

.expertise-icon-badge {
  position: relative;
  isolation: isolate;
}
.expertise-icon-badge::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 999px;
  background: radial-gradient(circle, hsl(var(--accent) / 0.35), transparent 70%);
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: -1;
}
.expertise-card:hover .expertise-icon-badge::after,
.expertise-client-card:hover .expertise-client-icon::after { opacity: 1; }

.expertise-card {
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.expertise-card:hover {
  transform: translateY(-4px);
  border-color: hsl(var(--accent) / 0.45);
  box-shadow: 0 10px 30px -12px hsl(var(--accent) / 0.35);
}

/* Skill/tool tag chips inside expertise cards. */
.expertise-tag-list {
  border-top: 1px solid hsl(var(--border));
  padding-top: 1rem;
}
.expertise-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: hsl(var(--muted-foreground));
  background: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
}

/* ---------------------------------------------------------------------
   Track record ledger — a rate-card / index style list rather than
   another set of stat cards, so it reads as a distinct texture (a
   broadsheet's index page) instead of repeating the hero stat treatment.
   ------------------------------------------------------------------- */

.expertise-ledger {
  border-top: 1px solid hsl(var(--border));
}
.expertise-ledger-row {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid hsl(var(--border));
  transition: padding-left 0.25s ease;
}
.expertise-ledger-row:hover {
  padding-left: 0.5rem;
}
.expertise-ledger-index {
  font-size: 0.8rem;
  color: hsl(var(--muted-foreground));
  letter-spacing: 0.05em;
}
.expertise-ledger-stat {
  font-size: 1.75rem;
  font-weight: 800;
  color: hsl(var(--accent));
  min-width: 5.5rem;
}
.expertise-ledger-copy {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.expertise-ledger-title {
  font-weight: 600;
  font-size: 1rem;
}
.expertise-ledger-desc {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.6;
}
@media (max-width: 640px) {
  .expertise-ledger-row {
    grid-template-columns: auto 1fr;
    row-gap: 0.5rem;
  }
  .expertise-ledger-stat {
    grid-column: 2;
    grid-row: 1;
  }
  .expertise-ledger-copy {
    grid-column: 1 / -1;
  }
}

/* ---------------------------------------------------------------------
   Client cards
   ------------------------------------------------------------------- */

.expertise-client-card {
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.expertise-client-card:hover {
  transform: translateY(-4px);
  border-color: hsl(var(--accent) / 0.45);
  box-shadow: 0 10px 30px -12px hsl(var(--accent) / 0.35);
}
.expertise-client-icon {
  position: relative;
  isolation: isolate;
}
.expertise-client-tag,
.expertise-partner-tag {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: hsl(var(--accent));
  background: hsl(var(--accent) / 0.1);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  white-space: nowrap;
}
.expertise-partner-tag {
  margin-top: 0.5rem;
}

/* ---------------------------------------------------------------------
   CTA banner — same neon-lit button + rotating gradient backdrop as
   the About/Services pages, explicitly z-index layered so the moving
   background never drifts on top of the text.
   ------------------------------------------------------------------- */

.expertise-cta {
  position: relative;
  overflow: hidden;
  background: hsl(var(--foreground) / 0.02);
  padding: 4rem 0;
}
@media (min-width: 768px) {
  .expertise-cta { padding: 6rem 0; }
}
.dark .expertise-cta { background: hsl(0 0% 8%); }

.expertise-cta-ribbon-bg {
  position: absolute;
  inset: -20%;
  z-index: 0;
  background: conic-gradient(from 0deg, hsl(var(--accent) / 0.16), transparent 30%, hsl(var(--accent) / 0.10) 60%, transparent 85%);
  animation: expertise-rotate 22s linear infinite;
  pointer-events: none;
}
@keyframes expertise-rotate {
  to { transform: rotate(360deg); }
}

.expertise-cta-content {
  position: relative;
  z-index: 1;
}

.expertise-glow-btn {
  position: relative;
  box-shadow: 0 0 0 0 hsl(var(--accent) / 0.6);
  transition: box-shadow 0.35s ease, transform 0.25s ease;
}
.expertise-glow-btn:hover {
  box-shadow: 0 0 22px 4px hsl(var(--accent) / 0.55), 0 0 60px 10px hsl(var(--accent) / 0.25);
  transform: translateY(-2px);
}

/* ---------------------------------------------------------------------
   Reduced motion — keep the theme's site-wide contract: everything
   still looks complete, it just doesn't move.
   ------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .expertise-glow-orb,
  .expertise-cta-ribbon-bg,
  .expertise-ribbon-track {
    animation: none !important;
  }
  .expertise-ribbon-viewport { overflow-x: auto; }
  .expertise-ledger-row { transition: none; }
}