/* DeepDimex — Immersive case study template */

.dd-cs {
  --dd-cs-hero-height: min(100svh, 920px);
  --dd-cs-rail: clamp(1.25rem, 3vw, 2.5rem);
}

/* ---------- Progress ---------- */
.dd-cs-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: calc(var(--dd-z-nav) + 2);
  width: 100%;
  height: 2px;
  pointer-events: none;
  background: transparent;
}

.dd-cs-progress__bar {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--dd-brand-gradient);
  transform-origin: left center;
}

/* ---------- Immersive hero ---------- */
.dd-cs-hero {
  position: relative;
  isolation: isolate;
  min-height: var(--dd-cs-hero-height);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: calc(var(--dd-header-height) + 2rem) 0 0;
  overflow: hidden;
  background: #050505;
}

.dd-cs-hero__stage {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.dd-cs-hero__glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 75%;
  background:
    radial-gradient(ellipse 55% 50% at 18% 35%, rgba(24, 43, 155, 0.55), transparent 70%),
    radial-gradient(ellipse 50% 45% at 72% 20%, rgba(192, 38, 211, 0.35), transparent 68%),
    radial-gradient(ellipse 45% 40% at 88% 70%, rgba(255, 107, 33, 0.28), transparent 70%),
    radial-gradient(ellipse 40% 35% at 40% 85%, rgba(255, 177, 27, 0.18), transparent 70%);
  filter: blur(8px);
  animation: dd-cs-glow-drift 14s ease-in-out infinite alternate;
}

.dd-cs-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 85%);
  opacity: 0.55;
}

.dd-cs-hero__orb {
  position: absolute;
  width: min(52vw, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  right: -8%;
  bottom: 8%;
  background:
    conic-gradient(
      from 210deg,
      rgba(24, 43, 155, 0.35),
      rgba(109, 40, 217, 0.45),
      rgba(192, 38, 211, 0.35),
      rgba(255, 107, 33, 0.3),
      rgba(255, 177, 27, 0.25),
      rgba(24, 43, 155, 0.35)
    );
  filter: blur(2px);
  opacity: 0.55;
  mix-blend-mode: screen;
  animation: dd-cs-orb-spin 28s linear infinite;
}

.dd-cs-hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - (var(--dd-page-padding) * 2), var(--dd-max-width));
  margin-inline: auto;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.dd-cs-hero__brand {
  margin: 0 0 1.25rem;
  font-size: clamp(0.75rem, 1.2vw, 0.875rem);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dd-color-signal);
}

.dd-cs-hero__title {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.dd-cs-hero__lede {
  max-width: 36rem;
  margin: 1.25rem 0 0;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.55;
  color: var(--dd-color-muted);
}

.dd-cs-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.dd-cs-hero__meta span {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

.dd-cs-hero__meta strong {
  color: #fff;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  margin-left: 0.35rem;
}

.dd-cs-hero__scroll {
  position: absolute;
  z-index: 1;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
}

.dd-cs-hero__scroll-line {
  width: 1px;
  height: 2.25rem;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.55), transparent);
  animation: dd-cs-scroll-pulse 1.8s ease-in-out infinite;
}

@keyframes dd-cs-glow-drift {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to { transform: translate3d(3%, 2%, 0) scale(1.06); }
}

@keyframes dd-cs-orb-spin {
  to { transform: rotate(360deg); }
}

@keyframes dd-cs-scroll-pulse {
  0%, 100% { opacity: 0.35; transform: scaleY(0.85); }
  50% { opacity: 1; transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .dd-cs-hero__glow,
  .dd-cs-hero__orb,
  .dd-cs-hero__scroll-line {
    animation: none;
  }
}

/* ---------- Snapshot strip ---------- */
.dd-cs-snapshot {
  border-block: 1px solid var(--dd-border-dark);
  background: var(--dd-color-raised);
}

.dd-cs-snapshot__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
}

.dd-cs-snapshot__item {
  padding: clamp(1.35rem, 3vw, 2rem) var(--dd-cs-rail);
  border-right: 1px solid var(--dd-border-dark);
}

.dd-cs-snapshot__item:last-child {
  border-right: 0;
}

.dd-cs-snapshot__value {
  display: block;
  margin: 0;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  background: var(--dd-brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.dd-cs-snapshot__label {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.8125rem;
  color: var(--dd-color-muted);
}

/* ---------- Chapter layout ---------- */

.dd-cs-chapter__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}

.dd-cs-chapter__aside {
  position: relative;
  padding-left: clamp(1.75rem, 3vw, 2.5rem);
}

.dd-cs-chapter__aside::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.dd-cs-chapter__meta {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  min-height: 2.75rem;
}

.dd-cs-chapter__num {
  flex: 0 0 auto;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1;
  color: rgba(255, 255, 255, 0.42);
}

.dd-cs-chapter__label {
  padding-top: 0.1rem;
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.3;
  color: rgba(255, 255, 255, 0.55);
}

.dd-cs-chapter__title {
  margin: 0;
  max-width: 13ch;
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--dd-text-on-dark);
}

.dd-cs-chapter__body > * + * {
  margin-top: 1.35rem;
}

.dd-cs-chapter__body p {
  margin:  0 0 1rem;
  color: rgba(255, 255, 255, 0.62);
  font-size: 1.0625rem;
  line-height: 1.7;
  max-width: 44rem;
}

.dd-cs-chapter__body p:last-child {
  margin-bottom: 0;
}

.dd-cs-chapter__flow {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.55rem;
  vertical-align: middle;
}

.dd-cs-chapter__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.55rem;
  border: 1px solid;
  border-radius: 4px;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.45;
  white-space: nowrap;
}

.dd-cs-chapter__badge--acquisition {
  color: #8ec8ff;
  border-color: rgba(142, 200, 255, 0.5);
  background: rgba(142, 200, 255, 0.08);
}

.dd-cs-chapter__badge--engagement {
  color: #c9a8ff;
  border-color: rgba(201, 168, 255, 0.5);
  background: rgba(201, 168, 255, 0.08);
}

.dd-cs-chapter__badge--lead {
  color: #e8c07a;
  border-color: rgba(232, 192, 122, 0.5);
  background: rgba(232, 192, 122, 0.08);
}

.dd-cs-chapter__arrow {
  color: rgba(255, 255, 255, 0.34);
  font-size: 0.875rem;
  line-height: 1;
}

/* ---------- Pull quote ---------- */
.dd-cs-pull {
  position: relative;
  padding-block: clamp(4rem, 10vw, 7rem);
  overflow: hidden;
  border-block: 1px solid var(--dd-border-dark);
  background:
    radial-gradient(ellipse 60% 80% at 0% 50%, rgba(109, 40, 217, 0.22), transparent 60%),
    radial-gradient(ellipse 50% 70% at 100% 40%, rgba(255, 107, 33, 0.14), transparent 55%),
    #050505;
}

.dd-cs-pull__quote {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(1.75rem, 4.5vw, 3.25rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.dd-cs-pull__quote span {
  background: var(--dd-brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.dd-cs-pull__note {
  margin: 1.5rem 0 0;
  max-width: 34rem;
  color: var(--dd-color-muted);
  font-size: 1rem;
  line-height: 1.6;
}

/* ---------- Section head (approach, outcomes) ---------- */
.dd-cs-section-head {
  position: relative;
  max-width: 44rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
  padding-left: clamp(1.75rem, 3vw, 2.5rem);
}

.dd-cs-section-head__title {
  max-width: none;
}

.dd-cs-section-head__lead {
  margin: 1rem 0 0;
  max-width: 38rem;
  color: rgba(255, 255, 255, 0.58);
  font-size: 1.0625rem;
  line-height: 1.65;
}

/* ---------- Timeline list (approach, outcomes) ---------- */

.dd-cs-approach .dd-container {
  position: relative;
}
.dd-cs-approach .dd-container::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15rem;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.dd-cs-timeline {
  --dd-cs-timeline-rail: clamp(1.75rem, 3vw, 2.5rem);
  --dd-cs-timeline-marker: 2.5rem;
  position: relative;
  margin: 0;
  padding: 0 0 0 var(--dd-cs-timeline-rail);
  list-style: none;
}

.dd-cs-timeline__item {
  display: grid;
  grid-template-columns: var(--dd-cs-timeline-marker) minmax(0, 0.34fr) minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  align-items: start;
  padding: clamp(1.75rem, 3.5vw, 2.5rem) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dd-cs-timeline__item:last-child {
  border-bottom: 0;
}

.dd-cs-timeline__marker {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--dd-cs-timeline-marker);
  height: var(--dd-cs-timeline-marker);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: var(--dd-color-page);
}

.dd-cs-timeline__num {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--dd-text-on-dark);
}

.dd-cs-timeline__icon {
  display: block;
  width: 1.125rem;
  height: 1.125rem;
  object-fit: contain;
}

.dd-cs-timeline__title {
  margin: 0;
  padding-top: 0.4rem;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--dd-text-on-dark);
}

.dd-cs-timeline__text {
  margin: 0;
  padding-top: 0.4rem;
  color: rgba(255, 255, 255, 0.58);
  font-size: 1rem;
  line-height: 1.65;
  max-width: 38rem;
}

/* ---------- Outcomes cards ---------- */
.dd-cs-outcomes__list {
  --dd-cs-outcomes-count: 3;
  display: grid;
  grid-template-columns: repeat(var(--dd-cs-outcomes-count), minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  overflow: hidden;
  background: #0d0d0d;
}

.dd-cs-outcomes__item {
  --dd-cs-outcomes-accent: var(--dd-brand-blue);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.15rem;
  min-height: 100%;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.dd-cs-outcomes__item:last-child {
  border-right: 0;
}

.dd-cs-outcomes__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--dd-cs-outcomes-accent);
}

.dd-cs-outcomes__item:nth-child(5n + 1) {
  --dd-cs-outcomes-accent: var(--dd-brand-blue);
}

.dd-cs-outcomes__item:nth-child(5n + 2) {
  --dd-cs-outcomes-accent: var(--dd-brand-purple);
}

.dd-cs-outcomes__item:nth-child(5n + 3) {
  --dd-cs-outcomes-accent: var(--dd-brand-magenta);
}

.dd-cs-outcomes__item:nth-child(5n + 4) {
  --dd-cs-outcomes-accent: var(--dd-brand-orange);
}

.dd-cs-outcomes__item:nth-child(5n + 5) {
  --dd-cs-outcomes-accent: var(--dd-brand-yellow);
}

.dd-cs-outcomes__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  color: var(--dd-cs-outcomes-accent);
}

.dd-cs-outcomes__icon-svg,
.dd-cs-outcomes__icon-img {
  display: block;
  width: 1.75rem;
  height: 1.75rem;
}

.dd-cs-outcomes__icon-img {
  object-fit: contain;
}

.dd-cs-outcomes__item-title {
  margin: 0;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--dd-text-on-dark);
}

.dd-cs-outcomes__item-desc {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ---------- Media canvas ---------- */
.dd-cs-canvas {
  position: relative;
  min-height: clamp(22rem, 55vw, 34rem);
  overflow: hidden;
  border-block: 1px solid var(--dd-border-dark);
  background: #030303;
}

.dd-cs-canvas__visual {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(5, 5, 5, 0.2), rgba(5, 5, 5, 0.85)),
    url("../images/dd-cta-flowing-trails-bg.svg") center / cover no-repeat,
    var(--dd-brand-gradient);
  transform: scale(1.04);
  will-change: transform;
}

.dd-cs-canvas__caption {
  position: absolute;
  left: var(--dd-page-padding);
  bottom: clamp(1.5rem, 4vw, 2.5rem);
  z-index: 1;
  max-width: 28rem;
  margin: 0;
  padding: 1rem 1.15rem;
  border-left: 2px solid var(--dd-color-signal);
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* ---------- Voice ---------- */
.dd-cs-voice {
  padding-block: clamp(4rem, 9vw, 6.5rem);
  background: #0a0812;
}

.dd-cs-voice__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(1.25rem, 3vw, 2rem);
  row-gap: clamp(1.75rem, 3vw, 2.35rem);
  align-items: start;
  max-width: 56rem;
  margin: 0 auto;
}

.dd-cs-voice__mark {
  grid-column: 1;
  grid-row: 1;
  color: var(--dd-brand-purple, #6d28d9);
  font-size: clamp(3.25rem, 9vw, 5.75rem);
  font-weight: 700;
  line-height: 0.78;
  letter-spacing: -0.04em;
  user-select: none;
}

.dd-cs-voice__quote {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  padding: 0.15rem 0 0;
}

.dd-cs-voice__quote p {
  margin: 0;
  font-size: clamp(1.75rem, 3.4vw, 2.65rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.025em;
  color: var(--dd-text-on-dark);
}

.dd-cs-voice__attr {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0;
}

.dd-cs-voice__name {
  color: var(--dd-text-on-dark);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.3;
}

.dd-cs-voice__role {
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.45;
}

/* ---------- Next / CTA ---------- */
.dd-cs-next {
  padding-block: clamp(3rem, 7vw, 5rem);
  border-top: 1px solid var(--dd-border-dark);
}

.dd-cs-next__row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}

.dd-cs-next__label {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dd-color-signal);
}

.dd-cs-next__title {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 18ch;
}

.dd-cs-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* ---------- Reveal ---------- */
.dd-cs [data-dd-cs-reveal] {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity 700ms var(--dd-ease-out, ease),
    transform 700ms var(--dd-ease-out, ease);
}

.dd-cs [data-dd-cs-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .dd-cs [data-dd-cs-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .dd-cs-snapshot__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dd-cs-snapshot__item:nth-child(2n) {
    border-right: 0;
  }

  .dd-cs-snapshot__item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--dd-border-dark);
  }

  .dd-cs-chapter__inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .dd-cs-chapter__aside {
    padding-left: 1.5rem;
  }

  .dd-cs-chapter__title {
    max-width: none;
  }

  .dd-cs-chapter__body p {
    max-width: none;
  }

  .dd-cs-section-head {
    padding-left: 1.5rem;
  }

  .dd-cs-timeline {
    --dd-cs-timeline-rail: 1.5rem;
    --dd-cs-timeline-marker: 2.25rem;
  }

  .dd-cs-timeline__item {
    grid-template-columns: var(--dd-cs-timeline-marker) minmax(0, 1fr);
  }

  .dd-cs-timeline__text {
    grid-column: 2;
    max-width: none;
  }

  .dd-cs-outcomes__list {
    grid-template-columns: 1fr;
  }

  .dd-cs-outcomes__item {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .dd-cs-outcomes__item:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .dd-cs-hero {
    min-height: auto;
    padding-top: calc(var(--dd-header-height) + 1.5rem);
  }

  .dd-cs-hero__title {
    max-width: none;
  }

  .dd-cs-hero__scroll {
    display: none;
  }

  .dd-cs-snapshot__grid {
    grid-template-columns: 1fr;
  }

  .dd-cs-snapshot__item {
    border-right: 0;
    border-bottom: 1px solid var(--dd-border-dark);
  }

  .dd-cs-snapshot__item:last-child {
    border-bottom: 0;
  }

  .dd-cs-timeline__item {
    grid-template-columns: var(--dd-cs-timeline-marker) minmax(0, 1fr);
    gap: 0.75rem 1rem;
  }

  .dd-cs-timeline__title,
  .dd-cs-timeline__text {
    grid-column: 2;
    padding-top: 0;
  }

  .dd-cs-voice__quote p {
    max-width: none;
  }
}