/* ===========================================================================
   Client Success page — slider, intro, layout overrides.
   Depends on styles.css brand tokens (:root variables).
   =========================================================================== */

/* ---------- Intro ---------- */
.cs-intro {
  text-align: center;
  padding: clamp(5rem, 4rem + 5vw, 8rem) 0 clamp(3rem, 2rem + 3vw, 5rem);
  position: relative;
  overflow: hidden;
}
.cs-intro::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 70%;
  background: radial-gradient(ellipse at 50% 0%, rgba(4, 230, 247, 0.12), transparent 65%);
  pointer-events: none;
}
.cs-intro .container { position: relative; z-index: 1; max-width: 900px; }
.cs-intro h1 {
  font-size: clamp(3rem, 2rem + 6vw, 6rem);
  margin-bottom: 1.5rem;
}
.cs-intro .lead {
  max-width: 60ch;
  margin-inline: auto;
}
.cs-intro .big-number {
  margin-top: 3rem;
  font-family: var(--font-display);
  font-size: var(--step-6);
  line-height: 0.9;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cs-intro .big-number-sub {
  font-size: var(--step-1);
  color: var(--mute);
  margin: 0.5rem auto 0;
  max-width: 50ch;
}

/* ---------- Hero stats (4 client metric cards in intro) ---------- */
.cs-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: clamp(2.5rem, 2rem + 2vw, 4rem) auto 0;
  max-width: 1100px;
  padding-inline: var(--gutter);
}
@media (max-width: 900px) { .cs-hero-stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .cs-hero-stats { grid-template-columns: 1fr; } }

.cs-hero-stat {
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 6px;
  padding: 1.5rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
  overflow: hidden;
  text-align: left;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.cs-hero-stat::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--gradient);
}
.cs-hero-stat:hover { border-color: rgba(4, 230, 247, 0.4); transform: translateY(-3px); }

.cs-hero-stat-big {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.4rem + 2.5vw, 3.5rem);
  line-height: 0.9;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 0.005em;
}
.cs-hero-stat-label {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 0.85rem + 0.3vw, 1.15rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1.15;
  margin-top: 0.2rem;
}
.cs-hero-stat-client {
  font-size: 0.85rem;
  color: var(--mute);
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--ink-3);
}

/* ---------- Case Studies Section (featured + grid of more) ---------- */
.cs-cases {
  padding: clamp(3rem, 2rem + 3vw, 5rem) 0 clamp(3rem, 2rem + 3vw, 5rem);
  background: var(--ink);
  border-block: 1px solid var(--ink-2);
}
.cs-cases-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}
.cs-cases-head-more {
  margin-top: 4rem;
  margin-bottom: 2rem;
  text-align: left;
  max-width: none;
  position: relative;
  padding-top: 3rem;
  border-top: 1px solid var(--ink-3);
}
.cs-cases-head-more::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 80px;
  height: 1px;
  background: var(--gradient);
}
.cs-cases-head-more h3 {
  font-family: var(--font-display);
  font-size: var(--step-2);
  text-transform: uppercase;
  margin: 0;
}
.cs-cases-loading {
  color: var(--mute-2);
  text-align: center;
  padding: 4rem 0;
}

.cs-cases-featured {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.cs-cases-more {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
@media (max-width: 700px) {
  .cs-cases-featured { grid-template-columns: 1fr; }
}

/* Featured cards take a bigger min-height + more padding to feel anchored */
.cs-cases-featured .proj-card .proj-card-body { min-height: 260px; padding: 2.25rem 2rem; }
.cs-cases-featured .proj-card .proj-card-title { font-size: clamp(1.5rem, 1.2rem + 0.8vw, 2rem); }
.cs-cases-featured .proj-card .proj-card-excerpt { -webkit-line-clamp: 4; line-clamp: 4; }

/* Compact "More" cards: tighter typography */
.cs-cases-more .proj-card .proj-card-body { min-height: 180px; padding: 1.5rem 1.25rem; }
.cs-cases-more .proj-card .proj-card-title { font-size: clamp(1.15rem, 1rem + 0.4vw, 1.4rem); }
.cs-cases-more .proj-card .proj-card-excerpt {
  -webkit-line-clamp: 2;
  line-clamp: 2;
  font-size: 0.85rem;
}

/* ---------- Slider Section ---------- */
.cs-slider-section { padding-block: clamp(2rem, 1rem + 3vw, 4rem) clamp(4rem, 2rem + 5vw, 7rem); }

.cs-slider {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
}

.cs-viewport {
  overflow: hidden;
  position: relative;
}
.cs-track {
  display: flex;
  gap: 1.25rem;
  transition: transform 0.5s var(--ease);
  will-change: transform;
}
.cs-loading {
  color: var(--mute-2);
  text-align: center;
  padding: 4rem 0;
  width: 100%;
}

/* ---------- Card ---------- */
.cs-card {
  flex: 0 0 calc((100% - 1.25rem) / 2);
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 6px;
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.cs-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0.6;
  transition: opacity 0.2s var(--ease);
}
.cs-card:hover {
  border-color: rgba(4, 230, 247, 0.4);
  transform: translateY(-3px);
}
.cs-card:hover::before { opacity: 1; }

.cs-card .cs-stars {
  color: var(--teal);
  letter-spacing: 0.1em;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}
.cs-card blockquote {
  margin: 0 0 1.5rem;
  padding-left: 1rem;
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--white);
  flex: 1;
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, var(--blue) 0%, var(--teal) 100%) 1;
}
.cs-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border-top: 1px solid var(--ink-3);
  padding-top: 1.25rem;
}
.cs-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--ink-3);
  flex-shrink: 0;
  border: 1px solid var(--ink-3);
}
.cs-avatar-fallback {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-diag);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  color: var(--white);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.cs-author-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1.1;
  margin: 0 0 0.25rem;
}
.cs-author-role {
  font-size: 0.85rem;
  color: var(--mute);
  margin: 0;
  line-height: 1.3;
}

/* ---------- Arrows ---------- */
.cs-arrow {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--ink-3);
  background: var(--ink-2);
  color: var(--white);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.15s var(--ease);
  flex-shrink: 0;
}
.cs-arrow:hover:not(:disabled) {
  border-color: var(--teal);
  background: rgba(4, 230, 247, 0.08);
  transform: scale(1.05);
}
.cs-arrow:active { transform: scale(0.95); }
.cs-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.cs-arrow:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

/* ---------- Progress bar + Counter ---------- */
.cs-progressbar {
  width: min(360px, 80%);
  height: 3px;
  margin: 2.5rem auto 0;
  background: var(--ink-3);
  border-radius: 999px;
  overflow: hidden;
}
.cs-progressbar-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  border-radius: 999px;
  transition: width 0.45s var(--ease);
}
.cs-progress {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--mute-2);
  font-family: var(--font-display);
  letter-spacing: 0.15em;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .cs-card { flex: 0 0 100%; padding: 1.75rem 1.5rem; }
  .cs-slider { grid-template-columns: 1fr; gap: 1rem; }
  .cs-arrow {
    width: 44px;
    height: 44px;
    font-size: 1.4rem;
  }
  .cs-slider {
    grid-template-areas: "viewport viewport" "prev next";
  }
  .cs-viewport { grid-area: viewport; }
  .cs-arrow-prev { grid-area: prev; justify-self: end; }
  .cs-arrow-next { grid-area: next; justify-self: start; }
}

/* ===========================================================================
   Video testimonial slider — YouTube facade pattern (thumbnail until click)
   =========================================================================== */
.cs-video-section { padding-block: clamp(3rem, 2rem + 3vw, 5rem); }
.cs-video-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.cs-video-slider {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
}
.cs-video-slider .cs-viewport {
  overflow: hidden;
  position: relative;
}
.cs-video-track {
  display: flex;
  gap: 1.5rem;
  transition: transform 0.55s var(--ease, cubic-bezier(0.22, 1, 0.36, 1));
  will-change: transform;
}

.cs-video-card {
  flex: 0 0 calc((100% - 1.5rem) / 2); /* 2 across on desktop */
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.cs-video-card:hover { border-color: var(--teal); }

.cs-video-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  cursor: pointer;
  overflow: hidden;
}
.cs-video-thumb img,
.cs-video-thumb iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.cs-video-thumb img {
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}
.cs-video-thumb:hover img { transform: scale(1.04); }

.cs-video-play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.85);
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  padding-left: 6px; /* nudge the play triangle visually centered */
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.cs-video-thumb:hover .cs-video-play {
  background: var(--teal);
  border-color: var(--teal);
  color: #000;
  transform: scale(1.05);
}

.cs-video-meta {
  padding: 1rem 1.25rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.cs-video-client {
  font-family: var(--font-display);
  font-size: var(--step-0);
  margin: 0;
  color: var(--white);
  letter-spacing: 0.02em;
}
.cs-video-cta {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  white-space: nowrap;
}
.cs-video-cta:hover { color: var(--white); }

@media (max-width: 700px) {
  .cs-video-card { flex: 0 0 100%; }
  .cs-video-slider {
    grid-template-areas: "viewport viewport" "prev next";
    grid-template-columns: 1fr 1fr;
  }
  .cs-video-slider .cs-viewport { grid-area: viewport; }
  .cs-video-slider .cs-arrow-prev { grid-area: prev; justify-self: end; }
  .cs-video-slider .cs-arrow-next { grid-area: next; justify-self: start; }
  .cs-video-play { width: 56px; height: 56px; font-size: 1.2rem; }
  .cs-video-meta { padding: 0.875rem 1rem 1rem; }
}

/* ===========================================================================
   Testimonial grid (for /testimonials/ page — full 50 in a grid layout,
   not a slider). Re-uses .cs-card styling but resets the slider flex-basis.
   =========================================================================== */
.cs-testimonial-grid-section { padding-block: clamp(3rem, 2rem + 3vw, 5rem); }
.cs-testimonial-grid-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}
.cs-testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}
.cs-testimonial-grid .cs-card {
  flex: unset;          /* override slider flex-basis */
  height: 100%;         /* equal-height rows */
}
@media (max-width: 600px) {
  .cs-testimonial-grid {
    grid-template-columns: 1fr;
  }
}