/* Enhanced case-study storytelling: compact desktop hero, visual evidence, interactive timeline. */

@media (min-width: 981px) {
  .cs-page { padding-top: var(--space-24); }
  .cs-breadcrumb { margin-bottom: var(--space-24); }
  .cs-hero {
    height: clamp(500px, calc(100svh - 185px), 570px);
    min-height: 0;
    grid-template-columns: minmax(0, 1fr) minmax(420px, .96fr);
  }
  .cs-hero-copy { padding: clamp(34px, 4vw, 56px); }
  .cs-hero-labels { margin-bottom: var(--space-24); }
  .cs-hero h1 {
    max-width: 680px;
    font-size: clamp(40px, 3.65vw, 58px);
    line-height: .98;
    margin-bottom: var(--space-24);
  }
  .cs-client-row { padding-top: var(--space-16); }
  .cs-hero-proof { padding-top: var(--space-28); }
  .cs-proof-value { font-size: clamp(24px, 2.4vw, 36px); }
  .cs-hero-visual.has-media .cs-visual-mark { bottom: 34px; }
}

.cs-evidence { position: relative; overflow: hidden; isolation: isolate; }
.cs-evidence::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -220px;
  top: -220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 120, 61, .24), transparent 68%);
  pointer-events: none;
}
.cs-evidence-dashboard {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-16);
  padding-top: var(--space-28);
}
.cs-evidence-card {
  position: relative;
  grid-column: span 2;
  min-height: 280px;
  padding: clamp(22px, 2vw, 30px);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .045);
  overflow: hidden;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease var(--evidence-delay, 0ms), transform .55s ease var(--evidence-delay, 0ms), border-color .25s ease, background .25s ease;
}
.cs-evidence.is-visible .cs-evidence-card { opacity: 1; transform: translateY(0); }
.cs-evidence-card:hover { border-color: rgba(255, 120, 61, .45); background: rgba(255, 255, 255, .065); }
.cs-evidence-card--recovery { grid-column: span 3; min-height: 330px; }
.cs-evidence-card--cadence { grid-column: span 3; }
.cs-evidence-dashboard.has-four .cs-evidence-card--uplift { grid-column: span 3; }
.cs-evidence-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-16);
  margin-bottom: var(--space-20);
}
.cs-evidence-card-head > span,
.cs-evidence-index {
  color: rgba(255, 255, 255, .54);
  font-size: 10px;
  line-height: 1.3;
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
}
.cs-evidence-card-head strong {
  color: #ff8751;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.3vw, 34px);
  line-height: 1;
  white-space: nowrap;
}
.cs-evidence-card > p {
  margin: var(--space-16) 0 0;
  color: rgba(255, 255, 255, .68);
  font-size: var(--font-size-body-sm);
}
.cs-slope-chart { width: 100%; height: auto; overflow: visible; }
.cs-slope-grid { stroke: rgba(255, 255, 255, .16); stroke-width: 1; }
.cs-slope-line {
  stroke: url(#csSlopeGradient);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 420;
  stroke-dashoffset: 420;
  transition: stroke-dashoffset 1s cubic-bezier(.2, .8, .2, 1) .2s;
}
.cs-evidence.is-visible .cs-slope-line { stroke-dashoffset: 0; }
.cs-slope-point {
  fill: #8a72e8;
  stroke: #11101f;
  stroke-width: 4;
  transform-origin: center;
  transform: scale(0);
  transition: transform .4s ease .42s;
}
.cs-slope-point--end { fill: #ff783d; transition-delay: .78s; }
.cs-evidence.is-visible .cs-slope-point { transform: scale(1); }
.cs-slope-value { fill: rgba(255, 255, 255, .78); font-family: var(--font-display); font-size: 19px; font-weight: 700; }
.cs-slope-value--end { fill: #ff8751; }
.cs-slope-axis { fill: rgba(255, 255, 255, .42); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.cs-index-chart { height: 150px; display: flex; flex-direction: column; justify-content: flex-end; }
.cs-index-bar-group {
  height: 118px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(18px, 3vw, 38px);
  border-bottom: 1px solid rgba(255, 255, 255, .15);
}
.cs-index-bar {
  position: relative;
  width: clamp(42px, 5vw, 66px);
  height: 0;
  border-radius: 8px 8px 0 0;
  background: rgba(255, 255, 255, .16);
  transition: height .8s cubic-bezier(.2, .8, .2, 1) .25s;
}
.cs-evidence.is-visible .cs-index-bar { height: var(--bar-height); }
.cs-index-bar--result { background: linear-gradient(180deg, #ff4c98, #ff783d); transition-delay: .45s; }
.cs-index-bar i {
  position: absolute;
  left: 50%;
  top: -24px;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, .72);
  font-size: 11px;
  font-style: normal;
}
.cs-index-chart-labels { display: flex; justify-content: center; gap: clamp(18px, 3vw, 38px); margin-top: var(--space-8); }
.cs-index-chart-labels span {
  width: clamp(42px, 5vw, 66px);
  color: rgba(255, 255, 255, .42);
  font-size: 9px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.cs-cadence-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(18px, 1fr));
  gap: 10px;
  margin: var(--space-28) 0;
}
.cs-cadence-grid i {
  aspect-ratio: 1;
  max-width: 34px;
  border-radius: 7px;
  background: rgba(255, 255, 255, .12);
  transform: scale(.25);
  opacity: 0;
  transition: transform .35s ease var(--dot-delay), opacity .35s ease var(--dot-delay), background .2s ease;
}
.cs-evidence.is-visible .cs-cadence-grid i {
  transform: scale(1);
  opacity: 1;
  background: linear-gradient(135deg, #8a72e8, #ff4c98);
}
.cs-cadence-summary { display: flex; align-items: baseline; gap: var(--space-12); }
.cs-cadence-summary b { color: #fff; font-family: var(--font-display); font-size: clamp(28px, 3vw, 44px); }
.cs-cadence-summary span { max-width: 190px; color: rgba(255, 255, 255, .58); font-size: var(--font-size-body-xs); }
.cs-evidence-card--datum { display: flex; flex-direction: column; }
.cs-evidence-card--datum > strong {
  max-width: 100%;
  margin-top: auto;
  color: #ff8751;
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 43px);
  line-height: 1.04;
  overflow-wrap: anywhere;
}
.cs-datum-signal { display: flex; align-items: flex-end; gap: 6px; height: 46px; margin-top: var(--space-20); }
.cs-datum-signal i {
  flex: 1;
  height: 30%;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #ff4c98, #8a72e8);
  transition: height .55s ease;
}
.cs-evidence.is-visible .cs-datum-signal i:nth-child(2) { height: 48%; }
.cs-evidence.is-visible .cs-datum-signal i:nth-child(3) { height: 68%; }
.cs-evidence.is-visible .cs-datum-signal i:nth-child(4) { height: 94%; }

.cs-approach { overflow: hidden; }
.cs-timeline-panels { position: relative; }
.cs-timeline-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: clamp(40px, 7vw, 96px);
  min-height: 310px;
  padding: clamp(34px, 5vw, 64px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: #fff;
  box-shadow: 0 16px 44px rgba(20, 16, 35, .06);
}
.cs-timeline-panel[hidden] { display: none !important; }
.cs-timeline-panel.is-active .cs-timeline-panel-copy,
.cs-timeline-panel.is-active .cs-timeline-panel-visual { animation: csTimelineReveal .48s cubic-bezier(.2, .8, .2, 1) both; }
.cs-timeline-panel.is-active .cs-timeline-panel-visual { animation-delay: .08s; }
@keyframes csTimelineReveal {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.cs-timeline-step {
  display: inline-block;
  margin-bottom: var(--space-24);
  color: var(--color-primary-active);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
}
.cs-timeline-panel h3 { max-width: 650px; font-size: clamp(30px, 4vw, 48px); margin-bottom: var(--space-20); }
.cs-timeline-panel-copy p {
  max-width: 680px;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-body-lg);
  line-height: 1.65;
}
.cs-timeline-panel-visual {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: clamp(24px, 4vw, 54px);
  border-left: 1px solid var(--color-border);
}
.cs-timeline-panel-visual > span {
  color: var(--color-text-muted);
  font-size: 10px;
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
}
.cs-timeline-orbit {
  position: relative;
  width: clamp(118px, 12vw, 156px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin: var(--space-24) 0;
  border-radius: 50%;
  background: conic-gradient(var(--color-primary-active) var(--stage-progress), var(--color-bg-tertiary) 0);
}
.cs-timeline-orbit::before { content: ""; position: absolute; inset: 9px; border-radius: inherit; background: #fff; }
.cs-timeline-orbit i { display: none; }
.cs-timeline-orbit b {
  position: relative;
  z-index: 1;
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 38px);
}
.cs-timeline-lanes { display: flex; gap: 8px; }
.cs-timeline-lanes i { flex: 1; height: 6px; border-radius: var(--radius-full); background: var(--color-bg-tertiary); }
.cs-timeline-lanes i.is-complete { background: linear-gradient(90deg, var(--color-indigo), var(--color-primary-active)); }
.cs-process-visual { display: block; margin-top: var(--space-20); padding: var(--space-12); border-radius: var(--radius-lg); }
.cs-timeline-track {
  display: grid;
  grid-template-columns: repeat(var(--timeline-columns, 3), minmax(0, 1fr));
  gap: 8px;
}
.cs-timeline-tab {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: var(--space-12);
  min-width: 0;
  padding: var(--space-12);
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  text-align: left;
  cursor: pointer;
  transition: background .22s ease, color .22s ease, transform .22s ease;
}
.cs-timeline-tab:hover,
.cs-timeline-tab:focus-visible { background: var(--color-bg-secondary); color: var(--color-text-primary); outline: none; }
.cs-timeline-tab.is-active { background: var(--color-ink); color: #fff; transform: translateY(-2px); }
.cs-timeline-tab > span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
}
.cs-timeline-tab.is-active > span { background: var(--gradient-sunset); color: #fff; }
.cs-timeline-tab b {
  min-width: 0;
  overflow: hidden;
  color: inherit;
  font-size: var(--font-size-body-xs);
  line-height: 1.35;
  text-overflow: ellipsis;
}
.cs-timeline-progress {
  height: 3px;
  margin: var(--space-12) var(--space-12) 0;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  overflow: hidden;
}
.cs-timeline-progress i {
  display: block;
  width: var(--timeline-progress, 33.33%);
  height: 100%;
  border-radius: inherit;
  background: var(--gradient-sunset);
  transition: width .45s cubic-bezier(.2, .8, .2, 1);
}

@media (max-width: 980px) {
  .cs-evidence-dashboard,
  .cs-evidence-dashboard.has-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cs-evidence-card,
  .cs-evidence-card--recovery,
  .cs-evidence-card--cadence,
  .cs-evidence-dashboard.has-four .cs-evidence-card--uplift { grid-column: span 1; }
  .cs-timeline-panel { grid-template-columns: 1fr; }
  .cs-timeline-panel-visual { padding: var(--space-24) 0 0; border-left: 0; border-top: 1px solid var(--color-border); }
}

@media (max-width: 680px) {
  .cs-evidence-dashboard,
  .cs-evidence-dashboard.has-four { grid-template-columns: 1fr; }
  .cs-evidence-card,
  .cs-evidence-card--recovery,
  .cs-evidence-card--cadence,
  .cs-evidence-dashboard.has-four .cs-evidence-card--uplift { grid-column: 1; min-height: 250px; }
  .cs-timeline-panel { min-height: 0; padding: var(--space-28) var(--space-24); }
  .cs-timeline-panel-copy p { font-size: var(--font-size-body-md); }
  .cs-timeline-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }
  .cs-timeline-track::-webkit-scrollbar { display: none; }
  .cs-timeline-tab { flex: 0 0 min(78vw, 300px); scroll-snap-align: start; }
}

@media (prefers-reduced-motion: reduce) {
  .cs-evidence-card,
  .cs-slope-line,
  .cs-slope-point,
  .cs-index-bar,
  .cs-cadence-grid i,
  .cs-timeline-progress i { transition: none; }
  .cs-timeline-panel.is-active .cs-timeline-panel-copy,
  .cs-timeline-panel.is-active .cs-timeline-panel-visual { animation: none; }
}