/* ==========================================================================
   Xtradite Digital — main stylesheet
   Design system: "Sunset Blaze". Warm off-white canvas, blazing orange
   primary, magenta + amber + indigo accents. Syne (display) / Plus Jakarta
   Sans (body). Ported from the radiant-design-system design system.
   ========================================================================== */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--font-size-body-md);
  line-height: var(--line-height-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-24);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  margin: 0;
}
h1 { font-size: var(--font-size-display-md); line-height: var(--line-height-display); }
h2 { font-size: var(--font-size-heading-lg); line-height: var(--line-height-heading); }
h3 { font-size: var(--font-size-heading-md); line-height: var(--line-height-heading); }
h4 { font-size: var(--font-size-heading-sm); line-height: var(--line-height-heading); }
p { margin: 0; }
.accent { color: var(--color-primary); }

/* ---- Sunset Blaze utilities ------------------------------------------- */
.text-gradient {
  background: var(--gradient-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.bg-gradient-sunset { background: var(--gradient-sunset); }
.bg-gradient-dusk { background: var(--gradient-dusk); }
.bg-gradient-blaze { background: var(--gradient-blaze); }

.bg-grain, .hero, .cta-banner {
  position: relative;
  isolation: isolate;
}
.bg-grain::before, .hero::before, .cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(circle at 20% 10%, color-mix(in oklab, var(--color-primary-hover) 18%, transparent), transparent 45%),
    radial-gradient(circle at 90% 20%, color-mix(in oklab, var(--color-magenta) 15%, transparent), transparent 50%),
    radial-gradient(circle at 40% 90%, color-mix(in oklab, var(--color-indigo) 12%, transparent), transparent 55%);
}
.cta-banner::before { opacity: 0.4; }

.card-3d {
  transition: transform 400ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: var(--shadow-lift);
}
.card-3d-hover:hover {
  transform: translateY(-6px) rotate(-0.3deg);
  box-shadow:
    0 30px 50px -20px color-mix(in oklab, var(--color-ink) 30%, transparent),
    0 70px 120px -40px color-mix(in oklab, var(--color-magenta) 35%, transparent);
}

.surface-raised {
  background: linear-gradient(180deg, color-mix(in oklab, white 100%, transparent) 0%, var(--color-cream) 100%);
  box-shadow: var(--shadow-lift);
  border: 1px solid color-mix(in oklab, var(--color-ink) 8%, transparent);
}

.surface-ink {
  background:
    radial-gradient(120% 80% at 0% 0%, color-mix(in oklab, var(--color-indigo) 35%, transparent) 0%, transparent 60%),
    radial-gradient(120% 80% at 100% 100%, color-mix(in oklab, var(--color-magenta) 30%, transparent) 0%, transparent 60%),
    var(--color-ink);
  color: #fff;
  box-shadow:
    0 1px 0 0 color-mix(in oklab, white 12%, transparent) inset,
    0 -20px 40px -20px color-mix(in oklab, black 40%, transparent) inset,
    0 30px 60px -30px color-mix(in oklab, var(--color-primary) 45%, transparent);
}

.ring-highlight {
  box-shadow:
    0 0 0 1px color-mix(in oklab, white 65%, transparent) inset,
    0 0 0 2px color-mix(in oklab, var(--color-ink) 8%, transparent),
    var(--shadow-lift);
}

/* ---- Eyebrow / pill ------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-family: var(--font-body);
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-primary-active);
  background: color-mix(in oklab, var(--color-primary) 8%, transparent);
  border: 1px solid var(--color-border-hover);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-20);
}

/* ---- Buttons ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  font-family: var(--font-body);
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  padding: 14px 28px;
  font-size: var(--font-size-body-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.btn-sm { padding: 10px 20px; font-size: var(--font-size-body-sm); }
.btn-lg { padding: 16px 34px; font-size: var(--font-size-body-lg); }
.btn-primary {
  background: var(--gradient-sunset);
  color: #fff;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: color-mix(in oklab, var(--color-ink) 18%, transparent);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}
.btn-icon { width: 16px; height: 16px; }

/* ---- Header ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 70%, transparent);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(0px);
  transition: background var(--transition-base), border-color var(--transition-base), backdrop-filter var(--transition-base);
}
.site-header.scrolled {
  background: color-mix(in oklab, var(--color-bg) 85%, transparent);
  border-bottom-color: var(--color-border);
  backdrop-filter: blur(12px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
}
.logo-img {
  height: 22px;
  width: auto;
  display: block;
}
.footer-brand .logo-img {
  height: 26px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-32);
  flex: 1;
  justify-content: center;
}
.site-nav a {
  font-size: var(--font-size-body-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  padding: var(--space-8) 0;
  position: relative;
}
.site-nav a:hover, .site-nav a.active { color: var(--color-text-primary); }
.site-nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}
.header-cta { flex-shrink: 0; }
.header-cta-mobile { display: none; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1150px) {
  .site-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--color-bg-secondary);
    border-bottom: 0;
    padding: 0 var(--space-24);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }
  .site-nav.open {
    max-height: 480px;
    padding: var(--space-8) var(--space-24) var(--space-20);
    border-bottom: 1px solid var(--color-border);
  }
  .site-nav a { width: 100%; padding: var(--space-12) 0; }
  .header-cta { display: none; }
  .site-nav .header-cta-mobile { display: inline-flex; margin-top: var(--space-12); }
  .nav-toggle { display: flex; }
}

/* ---- Sections ----------------------------------------------------------- */
section { padding: var(--space-96) 0; }
.section-tight { padding: var(--space-64) 0; }
.section-alt { background: var(--color-bg-secondary); }
.section-head {
  max-width: 640px;
  margin: 0 auto var(--space-56);
  text-align: center;
}
.section-head p { margin-top: var(--space-16); color: var(--color-text-tertiary); font-size: var(--font-size-body-lg); }
.section-head.left { margin-left: 0; text-align: left; }

/* ---- Hero ---------------------------------------------------------------- */
.hero {
  padding: var(--space-160) 0 var(--space-96);
  text-align: center;
}
.hero .container { max-width: 820px; }
.hero h1 { font-size: var(--font-size-display-lg); margin-bottom: var(--space-24); }
.hero-sub {
  font-size: var(--font-size-body-lg);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-40);
}
.hero-ctas {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  flex-wrap: wrap;
}
.hero.left-aligned { text-align: left; }
.hero.left-aligned .container { max-width: 900px; }
.hero.left-aligned .hero-ctas { justify-content: flex-start; }

.breadcrumb {
  font-size: var(--font-size-body-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-24);
}
.breadcrumb a:hover { color: var(--color-primary); }

/* ---- Stat strip ----------------------------------------------------------- */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(var(--strip-cols, 4), 1fr);
  gap: var(--space-32);
  padding: var(--space-56) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.stat-item { text-align: center; }
.stat-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-heading-lg);
  display: block;
  margin-bottom: var(--space-8);
  background: var(--gradient-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label {
  font-size: var(--font-size-body-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  overflow: hidden;
}
.case-card .card-image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.case-card:hover .card-image img { transform: scale(1.025); }
@media (max-width: 720px) {
  .stats-strip { grid-template-columns: repeat(min(var(--strip-cols, 4), 2), 1fr); }
}

/* ---- Grids & Cards --------------------------------------------------------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-24); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-24); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-32);
  transition: transform 400ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 400ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color var(--transition-base);
  box-shadow: var(--shadow-lift);
}
.card:hover {
  transform: translateY(-6px) rotate(-0.3deg);
  border-color: var(--color-border-hover);
  box-shadow:
    0 30px 50px -20px color-mix(in oklab, var(--color-ink) 30%, transparent),
    0 70px 120px -40px color-mix(in oklab, var(--color-magenta) 35%, transparent);
}

.service-card .card-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-sunset);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  margin-bottom: var(--space-24);
}
.service-card .card-icon svg { width: 24px; height: 24px; }
.card-category {
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  display: block;
}
.card h3 { margin-bottom: var(--space-12); font-size: var(--font-size-heading-sm); }
.card p.card-desc { color: var(--color-text-tertiary); font-size: var(--font-size-body-sm); margin-bottom: var(--space-20); }
.card-link {
  font-weight: 700;
  font-size: var(--font-size-body-sm);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}
.card-link svg { width: 14px; height: 14px; transition: transform var(--transition-fast); }
.card:hover .card-link svg { transform: translateX(3px); }

.card-featured {
  border-color: var(--color-primary);
  background: color-mix(in oklab, var(--color-primary) 6%, var(--color-bg-secondary));
}
.card-category-accent { color: var(--color-primary-active); }

.track-record-subhead {
  font-size: var(--font-size-heading-sm);
  margin-bottom: var(--space-12);
}
.track-record-subhead-spaced { margin-top: var(--space-56); }
.track-record-note {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-body-sm);
  max-width: 640px;
  margin-bottom: var(--space-24);
}

/* ---- Founder split layout ---------------------------------------------- */
.founder-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--space-48);
  align-items: start;
}
@media (max-width: 800px) { .founder-grid { grid-template-columns: 1fr; } }
.founder-facts {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-28);
}
.founder-facts .fact-row {
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-border);
}
.founder-facts .fact-row:last-child { border-bottom: none; padding-bottom: 0; }
.founder-facts .fact-row:first-child { padding-top: 0; }
.founder-facts .fact-label {
  display: block;
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.founder-facts .fact-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-body-md);
  color: var(--color-text-primary);
}

/* ---- Inline mini-stats (used in the "currently" banner card) ----------- */
.mini-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-24);
  margin-top: var(--space-20);
}
.mini-stat { min-width: 120px; }
.mini-stat .mini-stat-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-heading-sm);
  display: block;
  background: var(--gradient-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.mini-stat .mini-stat-label {
  font-size: var(--font-size-body-xxs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

/* ---- Compact banner card (currently-alongside PROMIXX card) ------------ */
.banner-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-28);
}
.banner-card .card-icon { margin-bottom: 0; flex-shrink: 0; }
.banner-card-body { flex: 1; min-width: 240px; }

.case-card .card-image {
  aspect-ratio: 16/9;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, color-mix(in oklab, var(--color-primary) 18%, transparent), color-mix(in oklab, var(--color-magenta) 10%, transparent));
  margin-bottom: var(--space-24);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-body-xxs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}
.tag {
  display: inline-block;
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-primary-active);
  margin-bottom: var(--space-12);
}
.metric {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-heading-sm);
  margin: var(--space-16) 0;
  display: block;
  background: var(--gradient-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Blog cover illustrations (whiteboard-style diagram artwork) --------------- */
/* Covers are dense, hand-drawn whiteboard infographics (~16:9, own wood-frame border
   baked into the image) — never crop them (object-fit: contain), and don't add a
   second competing border/frame around art that already has one. Cards bleed the
   cover to their top/side edges, then resume normal card padding below it. */
.blog-card, .related-post-card { padding-top: 0; overflow: hidden; }
.blog-card-cover {
  aspect-ratio: 16 / 9;
  margin: 0 calc(-1 * var(--space-32)) var(--space-24);
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.blog-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-12);
}
.blog-card-cover-placeholder {
  background: linear-gradient(135deg, color-mix(in oklab, var(--color-primary) 10%, transparent), color-mix(in oklab, var(--color-indigo) 8%, transparent));
  color: var(--color-text-muted);
}
.blog-card-cover-placeholder i, .blog-card-cover-placeholder svg { width: 28px; height: 28px; }
.related-post-card .blog-card-cover-sm {
  aspect-ratio: 16 / 9;
  margin: 0 calc(-1 * var(--space-32)) var(--space-20);
}

.post-cover {
  display: block;
  width: 100%;
  position: relative;
  margin: var(--space-32) 0 var(--space-40);
  padding: 0;
  border: none;
  background: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  cursor: zoom-in;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.post-cover img { display: block; width: 100%; height: auto; border-radius: var(--radius-md); }
.post-cover:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.post-cover-expand {
  position: absolute;
  top: var(--space-12);
  right: var(--space-12);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: color-mix(in oklab, var(--color-ink) 75%, transparent);
  color: #fff;
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}
.post-cover-expand svg { width: 12px; height: 12px; }

/* ---- Lightbox (full-size diagram viewer) --------------------------------------- */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-40);
  background: color-mix(in oklab, var(--color-ink) 92%, transparent);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base);
}
.lightbox-overlay.open { opacity: 1; visibility: visible; }
.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
}
.lightbox-close {
  position: absolute;
  top: var(--space-24);
  right: var(--space-24);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius-full);
  background: color-mix(in oklab, white 12%, transparent);
  color: #fff;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.lightbox-close:hover { background: color-mix(in oklab, white 22%, transparent); transform: rotate(90deg); }
.lightbox-close svg { width: 20px; height: 20px; }

@media (max-width: 640px) {
  .blog-card-cover, .related-post-card .blog-card-cover-sm { margin: 0 calc(-1 * var(--space-24)) var(--space-20); }
  .post-cover-expand span { display: none; }
  .lightbox-overlay { padding: var(--space-20); }
  .lightbox-close { top: var(--space-12); right: var(--space-12); width: 36px; height: 36px; }
}

/* ---- Timeline / process ------------------------------------------------------ */
.timeline { display: grid; grid-template-columns: repeat(var(--timeline-cols, 5), 1fr); gap: var(--space-20); }
@media (max-width: 960px) { .timeline { grid-template-columns: repeat(min(var(--timeline-cols, 5), 2), 1fr); } }
@media (max-width: 560px) { .timeline { grid-template-columns: 1fr; } }
.timeline-step .step-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-body-lg);
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-12);
}
.timeline-step h4 { margin-bottom: var(--space-8); }
.timeline-step p { color: var(--color-text-tertiary); font-size: var(--font-size-body-sm); }

/* ---- Testimonial slider ------------------------------------------------------- */
.testimonial-slider { max-width: 760px; margin: 0 auto; position: relative; text-align: center; min-height: 220px; }
.testimonial-slide { display: none; }
.testimonial-slide.active { display: block; animation: fade-in var(--transition-slow); }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.testimonial-slide blockquote {
  font-family: var(--font-display);
  font-size: var(--font-size-heading-sm);
  color: var(--color-text-primary);
  font-weight: 500;
  line-height: 1.4;
  margin: 0 0 var(--space-24);
}
.testimonial-slide cite {
  font-style: normal;
  font-size: var(--font-size-body-sm);
  color: var(--color-text-tertiary);
}
.testimonial-slide cite strong { color: var(--color-text-primary); display: block; margin-bottom: 2px; }
.testimonial-dots { display: flex; gap: var(--space-8); justify-content: center; margin-top: var(--space-32); }
.testimonial-dots button {
  width: 8px; height: 8px; border-radius: 50%;
  border: none; background: var(--color-border);
  padding: 0;
}
.testimonial-dots button.active { background: var(--color-primary); }
.placeholder-flag {
  display: block;
  text-align: center;
  font-size: var(--font-size-body-xxs);
  color: var(--color-text-muted);
  margin-top: var(--space-24);
  font-style: italic;
}

/* ---- FAQ accordion ---------------------------------------------------------- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%;
  background: none; border: none;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-24) 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--font-size-body-lg);
  color: var(--color-text-primary);
  text-align: left;
}
.faq-question svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--transition-fast); color: var(--color-primary); }
.faq-item.open .faq-question svg { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  color: var(--color-text-tertiary);
}
.faq-item.open .faq-answer { max-height: 240px; }
.faq-answer p { padding-bottom: var(--space-24); }

/* ---- CTA banner --------------------------------------------------------------- */
.cta-banner {
  background: var(--gradient-sunset);
  border-radius: var(--radius-xl);
  padding: var(--space-64);
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.cta-banner h2 { margin-bottom: var(--space-16); color: #fff; }
.cta-banner p { color: color-mix(in oklab, white 85%, transparent); max-width: 520px; margin: 0 auto var(--space-32); font-size: var(--font-size-body-lg); }
.cta-banner .btn-primary { background: var(--color-ink); box-shadow: none; }
.cta-banner .btn-primary:hover { box-shadow: var(--shadow-lift); }

/* ---- At-a-glance stat card (service detail) ------------------------------------ */
.glance-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-32);
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}
.glance-item .glance-num {
  font-family: var(--font-display);
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--font-size-heading-md);
  display: block;
}
.glance-item .glance-label { font-size: var(--font-size-body-xs); color: var(--color-text-tertiary); }
.detail-hero-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: var(--space-48); align-items: start; }
@media (max-width: 860px) { .detail-hero-grid { grid-template-columns: 1fr; } }

/* ---- Rich text (CMS description / blog body) ----------------------------------- */
.richtext p { margin-bottom: var(--space-20); color: var(--color-text-secondary); }
.richtext h2 { margin: var(--space-40) 0 var(--space-16); font-size: var(--font-size-heading-md); }
.richtext h3 { margin: var(--space-32) 0 var(--space-12); }
.richtext ul, .richtext ol { margin: 0 0 var(--space-20) var(--space-24); }
.richtext li { margin-bottom: var(--space-8); color: var(--color-text-secondary); }
.richtext blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-20);
  color: var(--color-text-primary);
  font-style: italic;
  margin: var(--space-24) 0;
}

/* ---- Post meta / author -------------------------------------------------------- */
.post-meta { display: flex; gap: var(--space-16); align-items: center; color: var(--color-text-muted); font-size: var(--font-size-body-xs); margin-bottom: var(--space-32); flex-wrap: wrap; }
.post-meta .dot { width: 3px; height: 3px; background: var(--color-text-muted); border-radius: 50%; }
.post-tag {
  display: inline-block;
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-primary-active);
  background: color-mix(in oklab, var(--color-primary) 8%, transparent);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
}

/* ---- Tag chips (blog cards, post detail, filter bar) ---------------------------- */
.tag-chip-list { display: flex; flex-wrap: wrap; gap: var(--space-8); margin-bottom: var(--space-20); }
.tag-chip {
  display: inline-block;
  font-size: var(--font-size-body-xxs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-primary-active);
  background: color-mix(in oklab, var(--color-primary) 8%, transparent);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
}
.tag-chip-link { transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast); }
.tag-chip-link:hover { background: var(--gradient-sunset); color: #fff; transform: translateY(-1px); }

.tag-filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-12); margin-bottom: var(--space-40); }
.tag-filter-chip {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-body-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  padding: var(--space-8) var(--space-20);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.tag-filter-chip:hover { border-color: var(--color-border-hover); transform: translateY(-1px); }
.tag-filter-chip.active { background: var(--gradient-sunset); color: #fff; border-color: transparent; box-shadow: var(--shadow-soft); }
.author-box {
  display: flex;
  gap: var(--space-16);
  align-items: flex-start;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-top: var(--space-56);
}
.author-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-bg-tertiary);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700;
  flex-shrink: 0;
}
.author-box h4 { margin-bottom: var(--space-4); font-size: var(--font-size-body-md); }
.author-box p { color: var(--color-text-tertiary); font-size: var(--font-size-body-sm); }
.back-link { display: inline-flex; align-items: center; gap: var(--space-8); color: var(--color-text-tertiary); font-weight: 600; font-size: var(--font-size-body-sm); margin-bottom: var(--space-32); }
.back-link:hover { color: var(--color-primary); }
.back-link svg { width: 16px; height: 16px; }

/* ---- Contact form --------------------------------------------------------------- */
.contact-layout { display: grid; grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; }
.form-field { margin-bottom: var(--space-24); }
.form-field label {
  display: block;
  font-size: var(--font-size-body-sm);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
}
.form-field .optional-tag { color: var(--color-text-muted); font-weight: 400; }
.form-field input, .form-field textarea {
  width: 100%;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--font-size-body-md);
  transition: border-color var(--transition-fast);
}
.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-status { margin-top: var(--space-20); font-size: var(--font-size-body-sm); display: none; padding: var(--space-16); border-radius: var(--radius-md); }
.form-status.success { display: block; background: rgba(0,194,111,0.1); color: var(--color-success); border: 1px solid rgba(0,194,111,0.3); }
.form-status.error { display: block; background: rgba(255,65,54,0.1); color: var(--color-error); border: 1px solid rgba(255,65,54,0.3); }
.form-status.loading { display: block; color: var(--color-text-tertiary); }

/* ---- Footer ----------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--color-border); padding-top: var(--space-80); background: var(--color-bg-secondary); }
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: var(--space-32);
  padding-bottom: var(--space-56);
}
.footer-brand p { margin-top: var(--space-16); color: var(--color-text-muted); font-size: var(--font-size-body-sm); max-width: 260px; }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--font-size-body-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-muted);
  margin-bottom: var(--space-20);
}
.footer-col a {
  display: block;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-body-sm);
  margin-bottom: var(--space-12);
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--space-24) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-16);
  color: var(--color-text-muted);
  font-size: var(--font-size-body-xs);
}
.footer-legal { display: flex; gap: var(--space-20); flex-wrap: wrap; }
.footer-legal a:hover { color: var(--color-primary); }
.footer-social a { display: inline-flex; color: var(--color-text-muted); }
.footer-social a:hover { color: var(--color-primary); }
@media (max-width: 960px) {
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-brand { grid-column: 1 / -1; margin-bottom: var(--space-24); }
}
@media (max-width: 560px) {
  .footer-inner { grid-template-columns: 1fr; }
}

/* ---- Utility / states -------------------------------------------------------------- */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-bg-tertiary) 50%, var(--color-bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-md);
  min-height: 220px;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-56) 0;
  font-size: var(--font-size-body-md);
}
.not-found { text-align: center; padding: var(--space-120) 0; }
.not-found h1 { margin-bottom: var(--space-16); }
.not-found p { color: var(--color-text-tertiary); margin-bottom: var(--space-32); }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-24); }
@media (max-width: 640px) { .related-grid { grid-template-columns: 1fr; } }
.legal-body { max-width: 760px; margin: 0 auto; }
.legal-body h2 { margin: var(--space-40) 0 var(--space-16); }
.legal-body p, .legal-body li { color: var(--color-text-secondary); margin-bottom: var(--space-16); }
.legal-body ul { margin-left: var(--space-24); }
.legal-updated { color: var(--color-text-muted); font-size: var(--font-size-body-xs); margin-bottom: var(--space-48); }
.note-banner {
  background: color-mix(in oklab, var(--color-primary) 6%, transparent);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  padding: var(--space-16) var(--space-20);
  font-size: var(--font-size-body-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-32);
}

/* ---- Deliverables checklist (service detail) --------------------------------------- */
.deliverable-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-16) var(--space-32); }
@media (max-width: 640px) { .deliverable-list { grid-template-columns: 1fr; } }
.deliverable-item { display: flex; align-items: flex-start; gap: var(--space-12); }
.deliverable-item svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--color-primary); margin-top: 2px; }
.deliverable-item span { color: var(--color-text-secondary); }

/* ---- Technology & Applications logo grid (service detail) -------------------------- */
.tech-logo-section + .tech-logo-section { margin-top: var(--space-40); }
.tech-logo-category {
  font-size: var(--font-size-body-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-20);
}
.tech-logo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: var(--space-16); }
.tech-logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-16) var(--space-8);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.tech-logo-item:hover { transform: translateY(-2px); border-color: var(--color-border-hover); }
.tech-logo-item img { width: 32px; height: 32px; object-fit: contain; }
.tech-logo-item span { font-size: var(--font-size-body-xxs); color: var(--color-text-tertiary); text-align: center; }