.authorityStrip,
.caseStudySection,
.beforeAfterSection,
.transformationTimeline,
.premiumMockups,
.premiumContactFlow {
  width: min(1080px, 100% - 64px);
  margin: 0 auto;
}

.authorityStrip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: clamp(56px, 7vw, 92px);
}

.authorityStrip article {
  min-height: 118px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 82%, transparent), color-mix(in srgb, var(--surface) 80%, transparent)),
    color-mix(in srgb, var(--bg-soft) 72%, transparent);
  box-shadow: 0 18px 58px color-mix(in srgb, var(--shadow) 62%, transparent);
}

.authorityStrip strong {
  display: block;
  color: var(--text);
  font-size: clamp(1.5rem, 2.4vw, 2.45rem);
  line-height: 1;
}

.authorityStrip span {
  display: block;
  margin-top: 10px;
  color: var(--text-soft);
  line-height: 1.45;
}

.premiumSectionHeader {
  display: grid;
  gap: 12px;
  max-width: 760px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.premiumSectionHeader h2 {
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 4.6rem);
  line-height: 1;
  letter-spacing: 0;
}

.premiumSectionHeader span {
  color: var(--text-soft);
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  line-height: 1.7;
}

.caseStudyGrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.caseStudyCard,
.beforeAfterCard,
.timelinePanel,
.mockupPanel,
.premiumContactFlow {
  border: 1px solid var(--border);
  border-radius: 10px;
  background:
    radial-gradient(circle at 86% 12%, color-mix(in srgb, var(--primary-light) 16%, transparent), transparent 28%),
    linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 80%, transparent), color-mix(in srgb, var(--surface) 78%, transparent));
  box-shadow: 0 22px 76px color-mix(in srgb, var(--shadow) 66%, transparent);
  overflow: hidden;
}

.caseStudyImage {
  position: relative;
  min-height: 260px;
  overflow: hidden;
}

.caseStudyImage img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  display: block;
  transition: transform 600ms cubic-bezier(.16, 1, .3, 1);
}

.caseStudyCard:hover .caseStudyImage img {
  transform: scale(1.045);
}

.caseStudyImage span,
.mockupBadge {
  position: absolute;
  left: 16px;
  top: 16px;
  padding: 8px 11px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  background: rgba(5, 8, 10, 0.76);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.caseStudyBody,
.beforeAfterBody,
.mockupBody {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 2.4vw, 28px);
}

.caseStudyBody h3,
.beforeAfterBody h3,
.mockupBody h3 {
  margin: 0;
  font-size: clamp(1.25rem, 1.7vw, 1.7rem);
  line-height: 1.15;
}

.caseStudyBody p,
.beforeAfterBody p,
.mockupBody p,
.timelineStep p,
.premiumContactIntro p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.65;
}

.caseStudyMeta {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 4px 0 0;
  list-style: none;
}

.caseStudyMeta li {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 10px;
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.45;
}

.caseStudyMeta strong {
  color: var(--primary-light);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: .4px;
}

.beforeAfterGrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.beforeAfterCompare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 150px;
  border-bottom: 1px solid var(--border);
}

.beforePane,
.afterPane {
  display: grid;
  align-content: end;
  gap: 10px;
  padding: 18px;
}

.beforePane {
  background: color-mix(in srgb, var(--bg) 76%, var(--surface));
}

.afterPane {
  background:
    radial-gradient(circle at 86% 12%, rgba(0, 168, 207, .24), transparent 36%),
    color-mix(in srgb, var(--primary) 16%, var(--surface));
}

.beforePane span,
.afterPane span,
.timelineStep span {
  color: var(--primary-light);
  font-size: .74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.beforePane strong,
.afterPane strong {
  color: var(--text);
  line-height: 1.25;
}

.timelinePanel {
  padding: clamp(22px, 3vw, 34px);
}

.timelineTrack {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.timelineStep {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface) 84%, transparent);
}

.timelineStep::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--primary-light);
  box-shadow: 0 0 20px rgba(0, 168, 207, .72);
}

.timelineStep h3 {
  margin: 0;
  font-size: 1.02rem;
}

.mockupGrid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 16px;
  align-items: stretch;
}

.mockupPanel {
  position: relative;
  min-height: 410px;
}

.mockupPanelLarge {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, .72fr);
  align-items: stretch;
}

.mockupScreen {
  display: grid;
  gap: 12px;
  align-content: start;
  margin: 28px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}

.mockupScreenBar {
  display: flex;
  gap: 6px;
}

.mockupScreenBar i {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--primary-light);
  opacity: .7;
}

.mockupHeroLine,
.mockupLine,
.mockupTile {
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface-strong) 84%, transparent);
}

.mockupHeroLine {
  height: 54px;
  width: 78%;
}

.mockupLine {
  height: 13px;
  width: 92%;
}

.mockupLine.short {
  width: 58%;
}

.mockupTiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.mockupTile {
  min-height: 82px;
}

.mockupBody {
  align-content: end;
}

.mockupSideStack {
  display: grid;
  gap: 16px;
}

.mockupSignal {
  display: grid;
  gap: 10px;
  padding: 20px;
  border-top: 1px solid var(--border);
}

.mockupSignal strong {
  color: var(--text);
}

.premiumContactFlow {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(22px, 4vw, 42px);
  align-items: center;
  padding: clamp(24px, 4vw, 44px);
}

.premiumContactIntro h2 {
  margin: 10px 0 14px;
  font-size: clamp(2rem, 4vw, 4.25rem);
  line-height: 1;
}

.contactFlowSteps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.contactFlowSteps article {
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}

.contactFlowSteps span {
  color: var(--primary-light);
  font-weight: 900;
  font-size: .8rem;
}

.contactFlowSteps strong {
  color: var(--text);
}

.contactFlowSteps small {
  color: var(--text-soft);
  line-height: 1.5;
}

html[data-theme="light"] .caseStudyImage span,
html[data-theme="light"] .mockupBadge {
  background: rgba(5, 8, 10, 0.82);
}

@media (max-width: 980px) {
  .authorityStrip,
  .caseStudyGrid,
  .beforeAfterGrid,
  .timelineTrack,
  .mockupGrid,
  .mockupPanelLarge,
  .premiumContactFlow {
    grid-template-columns: 1fr;
  }

  .authorityStrip,
  .contactFlowSteps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .authorityStrip,
  .caseStudySection,
  .beforeAfterSection,
  .transformationTimeline,
  .premiumMockups,
  .premiumContactFlow {
    width: min(100% - 36px, 520px);
  }

  .authorityStrip,
  .contactFlowSteps {
    grid-template-columns: 1fr;
  }

  .beforeAfterCompare {
    grid-template-columns: 1fr;
  }

  .mockupScreen {
    margin: 18px;
  }
}