/* ============================================================
   TECHNZONE — Use Cases / Case Study Page Styles
   ============================================================ */

/* ── Hero Masthead ─────────────────────────────────────────── */
.cs-hero {
  background: var(--dark);
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.cs-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 40%, rgba(237,72,95,0.12) 0%, transparent 65%);
  pointer-events: none;
}
.cs-hero > .container { position: relative; z-index: 1; }

/* Breadcrumb */
.cs-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.cs-breadcrumb a {
  color: rgba(255,255,255,0.5);
  font-size: 0.82rem;
  font-weight: 500;
  transition: color var(--transition);
}
.cs-breadcrumb a:hover { color: rgba(255,255,255,0.9); }
.cs-breadcrumb i { color: rgba(255,255,255,0.3); font-size: 0.7rem; }
.cs-breadcrumb span {
  color: rgba(255,255,255,0.85);
  font-size: 0.82rem;
  font-weight: 600;
}

/* Client logo */
.cs-client-logo-wrap {
  margin-bottom: 28px;
}
.cs-client-logo-wrap img {
  max-width: 180px;
  max-height: 64px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

/* Tag pills */
.cs-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.cs-tag-pill {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  border-radius: var(--radius-full);
  padding: 5px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid rgba(255,255,255,0.12);
}

/* Title */
.cs-hero-title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin: 0 0 16px;
  max-width: 800px;
}
.cs-hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.55);
  margin: 0 0 48px;
  font-weight: 500;
}

/* Stats strip */
.cs-hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 32px;
  margin-top: 32px;
}
.cs-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 32px 0 0;
}
.cs-stat:first-child { padding-left: 0; }
.cs-stat-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}
.cs-stat-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}
.cs-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.12);
  margin: 0 32px 0 0;
}

/* ── Shared section helpers ─────────────────────────────────── */
.cs-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.cs-section-title {
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.25;
  margin: 0 0 20px;
  max-width: 720px;
}
.cs-body-text {
  color: var(--gray);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 700px;
}

/* ── Overview Section ─────────────────────────────────────── */
.cs-overview {
  padding: 80px 0;
  background: var(--white);
}
.cs-overview-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 60px;
  align-items: start;
}

/* Sidebar */
.cs-sidebar-card {
  background: var(--neutral);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: sticky;
  top: 100px;
}
.cs-sidebar-heading {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 16px;
}
.cs-sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.cs-sidebar-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cs-sl-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gray-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.cs-sl-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark);
}
.cs-sidebar-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}
.cs-sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cs-sidebar-tags span {
  background: var(--white);
  color: var(--charcoal);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  font-size: 0.73rem;
  font-weight: 600;
  border: 1px solid var(--border);
}

/* ── Live Product Links ─────────────────────────────────────── */
.cs-live-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}
.cs-live-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.cs-live-link:hover {
  transform: translateX(3px);
  box-shadow: 0 4px 14px rgba(0,0,0,0.22);
  color: #fff;
}
.cs-live-link i { font-size: 1rem; flex-shrink: 0; }
.cs-live-website  { background: var(--primary); }
.cs-live-appstore { background: #111111; }
.cs-live-googleplay { background: #01875F; }
.cs-live-appgallery { background: #CF0A2C; }

/* ── Challenge Section ─────────────────────────────────────── */
.cs-challenge {
  padding: 80px 0;
  background: var(--neutral);
}
.cs-challenge .cs-section-title { color: var(--dark); }

/* Pain point cards */
.cs-pain-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.cs-pain-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-left: 3px solid var(--primary);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.cs-pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.cs-pain-card i {
  font-size: 1.4rem;
  color: var(--primary);
}
.cs-pain-card p {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.5;
  margin: 0;
}

/* ── Solution Section ─────────────────────────────────────── */
.cs-solution {
  padding: 80px 0;
  background: var(--white);
}
.cs-solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.cs-sol-card {
  background: var(--neutral);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  border: 1px solid var(--border);
}
.cs-sol-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.cs-sol-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.cs-sol-card:hover .cs-sol-num { color: var(--primary); transition: color var(--transition); }
.cs-sol-card h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 8px;
}
.cs-sol-card p {
  font-size: 0.84rem;
  color: var(--gray);
  line-height: 1.6;
  margin: 0;
}

/* ── Tags / Topics Section ─────────────────────────────────── */
.cs-tags-section {
  padding: 60px 0;
  background: var(--neutral);
  border-top: 1px solid var(--border);
}
.cs-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.cs-tag-cloud span {
  background: var(--white);
  color: var(--charcoal);
  border-radius: var(--radius-full);
  padding: 7px 18px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--border);
  cursor: default;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.cs-tag-cloud span:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* ── CTA Section ───────────────────────────────────────────── */
.cs-cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--dark) 0%, #1F1F1F 50%, #2a0d14 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cs-cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(237,72,95,0.2) 0%, transparent 65%);
  pointer-events: none;
}
.cs-cta-section > .container { position: relative; z-index: 1; }
.cs-cta-section h2 {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  margin: 0 0 16px;
}
.cs-cta-section p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.6);
  margin: 0 0 40px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.cs-cta-section .btn-primary {
  background: var(--primary);
  color: var(--white);
  padding: 16px 36px;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 8px 32px rgba(237,72,95,0.35);
}
.cs-cta-section .btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(237,72,95,0.45);
}

/* ── Key Features Section ──────────────────────────────────── */
.cs-features-section {
  padding: 80px 0;
  background: var(--neutral);
}
.cs-features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.cs-feature-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.cs-feature-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.cs-feature-item i {
  font-size: 1.3rem;
  color: var(--primary);
}
.cs-feature-item span {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.4;
}

/* ── Business Value Section ────────────────────────────────── */
.cs-value {
  padding: 80px 0;
  background: var(--white);
}
.cs-value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.cs-value-card {
  background: var(--neutral);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.cs-value-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.cs-value-card > i {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 14px;
  display: block;
}
.cs-value-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 10px;
  line-height: 1.4;
}
.cs-value-card p {
  font-size: 0.875rem;
  color: var(--gray);
  line-height: 1.7;
  margin: 0;
}

/* ── Use Cases Listing Page ────────────────────────────────── */
.ucl-hero {
  background: var(--dark);
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.ucl-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(237,72,95,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.ucl-hero > .container { position: relative; z-index: 1; }
.ucl-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}
.ucl-hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin: 0 0 20px;
  max-width: 700px;
}
.ucl-hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.55);
  max-width: 560px;
  line-height: 1.7;
  margin: 0;
}

/* Listing grid */
.ucl-section {
  padding: 80px 0;
  background: var(--neutral);
}
.ucl-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 56px;
}

/* Listing card */
.ucl-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
  color: inherit;
}
.ucl-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

/* Card header: dark band with logo */
.ucl-card-header {
  background: linear-gradient(160deg, #1a1a1a 0%, #111111 100%);
  padding: 32px 32px 28px;
  position: relative;
  overflow: hidden;
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.ucl-card-header::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: rgba(237,72,95,0.1);
  pointer-events: none;
}
.ucl-logo {
  position: relative;
  z-index: 1;
}
.ucl-logo img {
  max-width: 140px;
  max-height: 48px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.ucl-header-meta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.ucl-region {
  display: flex;
  align-items: center;
  gap: 5px;
  color: rgba(255,255,255,0.5);
  font-size: 0.78rem;
  font-weight: 500;
}
.ucl-region i { color: var(--primary); }
.ucl-industry-tag {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  border-radius: var(--radius-full);
  padding: 3px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Card body */
.ucl-card-body {
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.ucl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.ucl-tag {
  background: var(--neutral);
  color: var(--charcoal);
  border-radius: var(--radius-full);
  padding: 3px 12px;
  font-size: 0.71rem;
  font-weight: 600;
  border: 1px solid var(--border);
}
.ucl-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.35;
  margin: 0;
}
.ucl-desc {
  color: var(--gray);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
  flex: 1;
}
.ucl-read-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.875rem;
  margin-top: 8px;
  transition: gap var(--transition);
}
.ucl-card:hover .ucl-read-more { gap: 11px; }

/* View all CTA row */
.ucl-view-all {
  text-align: center;
  margin-top: 48px;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .cs-overview-grid { grid-template-columns: 1fr; }
  .cs-sidebar-card { position: static; }
  .cs-pain-points { grid-template-columns: repeat(2, 1fr); }
  .cs-solution-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-features-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-value-grid { grid-template-columns: repeat(2, 1fr); }
  .ucl-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cs-hero { padding: 100px 0 60px; }
  .ucl-hero { padding: 100px 0 60px; }
  .cs-hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .cs-stat-divider { display: none; }
  .cs-stat { padding: 0; }
  .cs-pain-points { grid-template-columns: 1fr; }
  .cs-solution-grid { grid-template-columns: 1fr; }
  .cs-features-grid { grid-template-columns: 1fr; }
  .cs-value-grid { grid-template-columns: 1fr; }
  .cs-overview, .cs-challenge, .cs-solution, .cs-features-section, .cs-value { padding: 60px 0; }
  .ucl-card-header, .ucl-card-body { padding: 24px 20px; }
}