/* ==========================================================================
   Launchpad Technology — Case Study Detail Pages
   Extends style.css / animations.css / responsive.css.
   ========================================================================== */

/* ---------- Breadcrumb ---------- */
.cs-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  transition: color var(--dur-fast) ease, transform var(--dur-fast) ease;
}
.cs-breadcrumb:hover { color: var(--accent-cyan); transform: translateX(-3px); }

/* ---------- Hero ---------- */
.cs-hero {
  padding: 9rem 0 3rem;
  background: radial-gradient(ellipse at 20% 0%, rgba(76,175,80,0.10), transparent 55%), var(--bg-primary);
}
.cs-hero-inner { max-width: 760px; }
.cs-hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  margin: 0.9rem 0 1.1rem;
}
.cs-hero-sub {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 620px;
  margin-bottom: 2.25rem;
}

.cs-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}
.cs-meta-item { display: flex; flex-direction: column; gap: 0.3rem; }
.cs-meta-label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.cs-meta-value { font-weight: 600; font-size: 0.95rem; }

/* ---------- Banner ---------- */
.cs-banner { padding: 0; }
.cs-banner .container { perspective: 1400px; }
.cs-banner-media {
  height: min(46vw, 420px);
  border-radius: var(--radius-lg);
  margin: 0 auto;
  max-width: var(--container-w);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--dur-slow) ease;
}
.cs-banner-media:hover { box-shadow: 0 34px 64px -20px rgba(34,211,238,0.32); }
.cs-banner-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1.5px 1.5px at 70% 60%, rgba(255,255,255,0.25), transparent),
    radial-gradient(1px 1px at 40% 80%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 85% 25%, rgba(255,255,255,0.25), transparent),
    radial-gradient(1px 1px at 55% 45%, rgba(255,255,255,0.2), transparent);
}
.cs-banner-a { background: linear-gradient(135deg, #142a4a, #0b3a4a 60%, #071925); }
.cs-banner-b { background: linear-gradient(135deg, #1a1440, #0b2450 60%, #071925); }
.cs-banner-c { background: linear-gradient(135deg, #0f2e3d, #123a2a 60%, #071925); }
.cs-banner-photo { background-size: cover; background-position: center; }
.cs-banner-photo::after { content: none; }
.cs-banner-hospital { background-image: url('../assets/images/hospital-banner.jpg'); }
.cs-banner-fooddelivery { background-image: url('../assets/images/fooddelivery-banner.jpg'); }
.cs-banner-taxi { background-image: url('../assets/images/taxi-banner.jpg'); }

/* ---------- Content grid ---------- */
.cs-content { padding-top: var(--space-2xl); }
.cs-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 4rem;
  align-items: start;
}

.cs-main h2 {
  font-size: 1.5rem;
  margin: 2.75rem 0 1rem;
}
.cs-main h2:first-child { margin-top: 0; }
.cs-main p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 1rem; }
.cs-main ul { display: flex; flex-direction: column; gap: 0.65rem; margin-top: 0.5rem; }
.cs-main ul li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--text-secondary);
  font-size: 0.96rem;
}
.cs-main ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
}

.cs-pull-quote {
  margin: 2.25rem 0;
  padding: 1.75rem 2rem;
  border-left: 2px solid var(--accent-cyan);
  background: var(--card-bg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Sidebar */
.cs-sidebar { display: flex; flex-direction: column; gap: 1.25rem; position: sticky; top: 100px; }
.cs-info-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.cs-info-card h4 {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.cs-info-list { display: flex; flex-direction: column; gap: 0.85rem; }
.cs-info-row { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.88rem; }
.cs-info-row span:first-child { color: var(--text-secondary); }
.cs-info-row span:last-child { font-weight: 600; text-align: right; }
.cs-info-card .case-tags { margin-top: 0; }
.cs-cta-card { text-align: center; }
.cs-cta-card p { color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 1.1rem; }
.cs-cta-card .btn { width: 100%; justify-content: center; }

/* ---------- Metrics strip ---------- */
.cs-metrics {
  margin-top: var(--space-2xl);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}
.cs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

/* ---------- Next case study ---------- */
.cs-next {
  padding: var(--space-lg) 0;
}
.cs-next-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
  transition: border-color var(--dur-base) ease, transform var(--dur-base) var(--ease-premium);
}
.cs-next-inner:hover { border-color: rgba(34,211,238,0.35); transform: translateY(-3px); }
.cs-next-label { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.4rem; }
.cs-next-title { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; }
.cs-next-arrow {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-premium), background var(--dur-base) ease, border-color var(--dur-base) ease;
}
.cs-next-inner:hover .cs-next-arrow {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  color: var(--bg-primary);
  transform: translateX(4px);
}

/* ---------- More case studies ---------- */
.cs-more { padding: 0 0 var(--space-lg); }
.cs-more-label { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.9rem; }
.cs-more-links { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.cs-more-link {
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--dur-fast) ease;
}
.cs-more-link:hover { border-color: rgba(34,211,238,0.4); color: var(--text-primary); }

/* ---------- Solution banner icon ---------- */
.cs-banner-icon-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.cs-banner-icon {
  width: 88px; height: 88px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-cyan);
}
.cs-banner-icon svg { width: 42px; height: 42px; }

/* ---------- Why-page 3D visual ---------- */
.why-3d {
  padding: 1rem 0 var(--space-lg);
  background: radial-gradient(ellipse at 50% 0%, rgba(34,211,238,0.06), transparent 60%);
}
.why-3d-stage {
  perspective: 1400px;
  display: flex;
  justify-content: center;
  padding: 2.5rem 0 1rem;
}
.why-3d-card {
  position: relative;
  width: 260px;
  height: 260px;
  transform-style: preserve-3d;
  transform: rotateX(0deg) rotateY(0deg);
  transition: transform 0.5s var(--ease-premium);
}
.why-3d-face {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
}
.why-3d-face-back { transform: translateZ(-46px) scale(0.88); background: rgba(255,255,255,0.02); }
.why-3d-face-mid { transform: translateZ(-24px) scale(0.94); background: rgba(255,255,255,0.03); }
.why-3d-ring {
  position: absolute;
  inset: -34px;
  border-radius: 50%;
  border: 1px dashed var(--border-strong);
  transform: translateZ(-70px) rotateX(72deg) rotate(0deg);
  animation: why-spin 16s linear infinite;
}
@keyframes why-spin {
  to { transform: translateZ(-70px) rotateX(72deg) rotate(360deg); }
}
.why-3d-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateZ(56px);
  color: var(--why-accent, var(--accent-cyan));
}
.why-3d-icon svg {
  width: 86px;
  height: 86px;
  filter: drop-shadow(0 14px 34px var(--why-accent-glow, rgba(34,211,238,0.35)));
}
.why-3d-label {
  position: absolute;
  bottom: 24px;
  left: 0;
  right: 0;
  text-align: center;
  transform: translateZ(56px);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}
@media (prefers-reduced-motion: reduce) {
  .why-3d-ring { animation: none; }
  .why-3d-card { transition: none; }
}

/* ---------- Why-page diagram ---------- */
.why-diagram { padding: 0 0 var(--space-lg); }
.why-diagram-frame {
  max-width: var(--container-w);
  margin: 0 auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  padding: clamp(1.25rem, 3vw, 2.5rem);
}
.why-diagram-frame svg { width: 100%; height: auto; display: block; }
.why-diagram-caption {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 1.1rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .cs-grid { grid-template-columns: 1fr; }
  .cs-sidebar { position: static; flex-direction: row; flex-wrap: wrap; }
  .cs-info-card { flex: 1 1 220px; }
}

@media (max-width: 640px) {
  .why-3d-card { width: 200px; height: 200px; }
  .why-3d-icon svg { width: 64px; height: 64px; }
  .why-diagram-frame { padding: 1.25rem; }
}

@media (max-width: 768px) {
  .cs-hero { padding: 7rem 0 2.5rem; }
  .cs-meta-row { gap: 1.25rem 2rem; }
  .cs-metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-next-inner { flex-direction: column; align-items: flex-start; }
  .cs-sidebar { flex-direction: column; }
}