/* ============================
   SKELETON LOADER
   ============================ */
.skel-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  overflow: hidden;
}
.skel-line {
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%;
  animation: skelShimmer 1.5s ease-in-out infinite;
  margin-bottom: 10px;
}
.skel-line.w60 { width: 60%; }
.skel-line.w80 { width: 80%; }
.skel-line.w40 { width: 40%; }
.skel-line.h20 { height: 20px; }
.skel-circle {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%;
  animation: skelShimmer 1.5s ease-in-out infinite;
  margin-bottom: 16px;
}
@keyframes skelShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================
   HUB HERO
   ============================ */
.cu-hub-hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 140px 40px 60px;
  text-align: center;
}
.cu-hub-hero.hidden { display: none; }

.cu-hub-bg {
  position: absolute;
  inset: 0;
}
.cu-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,77,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,77,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
}
.cu-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
}
.cu-glow-1 {
  width: 500px; height: 500px;
  background: var(--purple);
  top: -150px; left: 30%;
  opacity: 0.1;
  animation: cuGlow 8s ease-in-out infinite;
}
.cu-glow-2 {
  width: 400px; height: 400px;
  background: var(--cyan);
  bottom: -100px; right: 20%;
  opacity: 0.08;
  animation: cuGlow 10s ease-in-out infinite reverse;
}
@keyframes cuGlow {
  0%, 100% { opacity: 0.08; transform: scale(1); }
  50% { opacity: 0.15; transform: scale(1.1); }
}

.cu-hub-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}
.cu-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(124,77,255,0.08);
  border: 1px solid rgba(124,77,255,0.15);
  color: var(--purple);
  margin-bottom: 24px;
}
.cu-hub-hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}
.cu-hl {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.cu-hub-sub {
  color: var(--text2);
  font-size: 18px;
  line-height: 1.6;
}

/* ============================
   SECTORS GRID (HUB)
   ============================ */
.cu-sectors {
  padding: 0 0 100px;
}
.cu-sectors.hidden { display: none; }

.cu-sectors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cu-sector-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  text-decoration: none;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
}
.cu-sector-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.cu-sector-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--sc-color);
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}
.cu-sector-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.12);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.cu-sector-card:hover::before { transform: scaleX(1); }

.cu-sc-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}
.cu-sector-card:hover .cu-sc-icon { transform: scale(1.1) rotate(-3deg); }

.cu-sector-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.cu-sector-card p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.5;
  margin-bottom: 16px;
}
.cu-sc-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--sc-color);
  transition: gap 0.3s;
}
.cu-sector-card:hover .cu-sc-arrow { gap: 10px; }

/* ============================
   DETAIL VIEW
   ============================ */

/* Detail Hero */
.cu-detail-hero {
  position: relative;
  padding: 160px 40px 80px;
  overflow: hidden;
}
.cu-detail-hero-bg {
  position: absolute;
  inset: 0;
}
.cu-detail-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--bg));
}
.cu-detail-hero-glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.12;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
}

.cu-detail-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.cu-detail-icon-large {
  width: 80px; height: 80px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  margin: 0 auto 24px;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.08);
  animation: cuIconPulse 3s ease-in-out infinite;
}
@keyframes cuIconPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0); }
  50% { box-shadow: 0 0 40px 10px rgba(255,255,255,0.03); }
}

.cu-detail-hero h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.cu-detail-hero-sub {
  font-size: 18px;
  color: var(--text2);
  line-height: 1.65;
  max-width: 640px;
  margin: 0 auto;
}

/* Stats bar */
.cu-stats {
  padding: 0 40px 80px;
}
.cu-stats-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cu-stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}
.cu-stat.visible {
  opacity: 1;
  transform: translateY(0);
}
.cu-stat-val {
  font-size: 32px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 6px;
  background: linear-gradient(135deg, #fff, var(--text2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cu-stat-label {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.45;
}

/* Problem section */
.cu-problem {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-problem-inner {
  max-width: 800px;
  margin: 0 auto;
}
.cu-section-tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.cu-problem .cu-section-tag {
  background: rgba(255,82,82,0.08);
  border: 1px solid rgba(255,82,82,0.15);
  color: var(--red);
}
.cu-problem h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cu-problem p {
  font-size: 17px;
  color: var(--text2);
  line-height: 1.75;
}

/* Solution section */
.cu-solution {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-solution-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.cu-solution .cu-section-tag {
  background: rgba(0,230,118,0.08);
  border: 1px solid rgba(0,230,118,0.15);
  color: var(--green);
}
.cu-solution h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 48px;
}

.cu-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
/* Vertical line */
.cu-steps::before {
  content: '';
  position: absolute;
  left: 27px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--border), rgba(255,255,255,0.03));
}

.cu-step {
  display: flex;
  gap: 28px;
  padding: 32px 0;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.cu-step.visible {
  opacity: 1;
  transform: translateX(0);
}

.cu-step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  border: 2px solid var(--border);
  background: var(--bg);
  transition: all 0.3s ease;
}
.cu-step.visible .cu-step-num {
  border-color: var(--step-color, var(--cyan));
  color: var(--step-color, var(--cyan));
  box-shadow: 0 0 20px rgba(0,229,255,0.1);
}

.cu-step-body { flex: 1; min-width: 0; }
.cu-step-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.cu-step-body p {
  font-size: 15px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 12px;
}
.cu-step-feature {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--step-color, var(--cyan));
}

/* Workflow timeline */
.cu-workflow {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
  overflow: hidden;
}
.cu-workflow-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.cu-workflow .cu-section-tag {
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.15);
  color: var(--cyan);
}
.cu-workflow h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 48px;
}

.cu-wf-track {
  display: flex;
  gap: 16px;
  position: relative;
  padding-bottom: 20px;
}
/* Horizontal line */
.cu-wf-track::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--border), rgba(255,255,255,0.08), var(--border));
}

.cu-wf-item {
  flex: 1;
  min-width: 0;
  position: relative;
  padding-top: 52px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}
.cu-wf-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.cu-wf-dot {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--wf-color, var(--cyan));
  z-index: 1;
  transition: all 0.3s ease;
}
.cu-wf-item.visible .cu-wf-dot {
  box-shadow: 0 0 16px rgba(0,229,255,0.3);
}

.cu-wf-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--wf-color, var(--cyan));
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.cu-wf-desc {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.5;
}

/* Use cases list */
.cu-usecases {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-usecases-inner {
  max-width: 800px;
  margin: 0 auto;
}
.cu-usecases .cu-section-tag {
  background: rgba(124,77,255,0.08);
  border: 1px solid rgba(124,77,255,0.15);
  color: var(--purple);
}
.cu-usecases h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 32px;
}
.cu-uc-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.cu-uc-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  font-size: 15px;
  color: var(--text);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateX(-15px);
}
.cu-uc-item.visible {
  opacity: 1;
  transform: translateX(0);
}
.cu-uc-item:hover {
  border-color: rgba(255,255,255,0.1);
  transform: translateX(4px);
}
.cu-uc-check {
  width: 28px; height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 700;
}

/* Other sectors strip */
.cu-others {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-others-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.cu-others h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 32px;
  text-align: center;
}
.cu-others-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cu-other-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 20px;
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.3s ease;
}
.cu-other-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}
.cu-other-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.cu-other-card h4 {
  font-size: 14px;
  font-weight: 600;
}
.cu-other-card span {
  font-size: 12px;
  color: var(--text2);
}

/* ============================
   PAIN POINTS
   ============================ */
.cu-pain-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 28px;
}
.cu-pain-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(255,82,82,0.04);
  border: 1px solid rgba(255,82,82,0.08);
  border-radius: 12px;
  font-size: 14px;
  color: var(--text2);
  line-height: 1.5;
}
.cu-pain-item svg { flex-shrink: 0; margin-top: 2px; }

/* ============================
   SCENARIO (CASE STUDY)
   ============================ */
.cu-scenario {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-scenario-inner {
  max-width: 900px;
  margin: 0 auto;
}
.cu-scenario h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
}
.cu-scenario-text {
  font-size: 16px;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 32px;
}
.cu-scenario-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cu-scenario-metric {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  opacity: 0;
  transform: translateY(15px);
  transition: all 0.5s ease;
}
.cu-scenario-metric.visible {
  opacity: 1;
  transform: translateY(0);
}
.cu-scenario-val {
  font-size: 28px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: #fff;
  margin-bottom: 4px;
}
.cu-scenario-label {
  font-size: 12px;
  color: var(--text2);
}

/* ============================
   UNIQUE: BEFORE/AFTER
   ============================ */
.cu-unique {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-unique-inner {
  max-width: 900px;
  margin: 0 auto;
}
.cu-unique h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 36px;
}

.cu-ba-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: stretch;
}
.cu-ba-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}
.cu-ba-before { border-color: rgba(255,82,82,0.15); }
.cu-ba-after { border-color: rgba(0,230,118,0.15); }
.cu-ba-label {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.cu-ba-before .cu-ba-label { color: var(--red); }
.cu-ba-after .cu-ba-label { color: var(--green); }
.cu-ba-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text2);
  line-height: 1.5;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.cu-ba-item:last-child { border-bottom: none; }
.cu-ba-item svg { flex-shrink: 0; margin-top: 2px; }
.cu-ba-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: var(--text2);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  align-self: center;
}

/* ============================
   UNIQUE: FUNNEL
   ============================ */
.cu-funnel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cu-funnel-stage {
  display: flex;
  align-items: center;
  gap: 20px;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.5s ease;
}
.cu-funnel-stage.visible {
  opacity: 1;
  transform: translateX(0);
}
.cu-funnel-bar {
  height: 40px;
  border-radius: 8px;
  min-width: 40px;
  transition: width 0.8s cubic-bezier(0.16,1,0.3,1);
}
.cu-funnel-info {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  min-width: 0;
}
.cu-funnel-label {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  min-width: 90px;
}
.cu-funnel-value {
  font-size: 18px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: var(--cyan);
  min-width: 50px;
}
.cu-funnel-desc {
  font-size: 13px;
  color: var(--text2);
}

/* ============================
   UNIQUE: SEGMENTS
   ============================ */
.cu-segments-desc {
  font-size: 16px;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 32px;
}
.cu-segments-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.cu-segment-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
  position: relative;
  overflow: hidden;
}
.cu-segment-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.cu-segment-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--seg-color);
}
.cu-segment-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-bottom: 12px;
}
.cu-segment-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.cu-segment-card p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.55;
}

/* ============================
   UNIQUE: MULTI-CLIENT
   ============================ */
.cu-clients-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.cu-client-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.5s ease;
}
.cu-client-card.visible {
  opacity: 1;
  transform: translateX(0);
}
.cu-client-name {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}
.cu-client-sector {
  font-size: 14px;
  color: var(--text2);
}
.cu-client-stats {
  display: flex;
  gap: 20px;
  grid-column: 1 / -1;
  margin-top: 4px;
}
.cu-client-leads {
  font-size: 13px;
  color: var(--cyan);
  font-weight: 600;
}
.cu-client-result {
  font-size: 13px;
  color: var(--green);
  font-weight: 600;
}

/* ============================
   UNIQUE: ICP BUILDER
   ============================ */
.cu-icp-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.cu-icp-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.5s ease;
}
.cu-icp-card.visible {
  opacity: 1;
  transform: translateX(0);
}
.cu-icp-saas {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  min-width: 200px;
}
.cu-icp-target {
  font-size: 14px;
  color: var(--text2);
  flex: 1;
}
.cu-icp-stats {
  display: flex;
  gap: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
}
.cu-icp-result { color: var(--green); }

/* ============================
   UNIQUE: PROFESSIONAL TYPES
   ============================ */
.cu-proftypes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.cu-proftype-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}
.cu-proftype-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.cu-proftype-icon {
  font-size: 28px;
  margin-bottom: 12px;
}
.cu-proftype-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.cu-proftype-target {
  font-size: 13px;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 10px;
}
.cu-proftype-card p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.55;
}

/* ============================
   UNIQUE: NURTURING FUNNEL
   ============================ */
.cu-nurturing-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.cu-nurturing-timeline::before {
  content: '';
  position: absolute;
  left: 50px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--green));
  opacity: 0.2;
}
.cu-nurt-step {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.5s ease;
}
.cu-nurt-step.visible {
  opacity: 1;
  transform: translateX(0);
}
.cu-nurt-day {
  width: 100px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  text-align: center;
  flex-shrink: 0;
  position: relative;
}
.cu-nurt-day::after {
  content: '';
  position: absolute;
  right: -11px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--orange);
  border: 2px solid var(--bg);
}
.cu-nurt-body {
  flex: 1;
  padding: 14px 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.cu-nurt-action {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.cu-nurt-goal {
  font-size: 13px;
  color: var(--text2);
}
.cu-nurt-rate {
  font-size: 14px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--green);
  min-width: 80px;
  text-align: right;
}

/* ============================
   DETAIL FAQ
   ============================ */
.cu-detail-faq {
  padding: 80px 40px;
  border-top: 1px solid var(--border);
}
.cu-detail-faq-inner {
  max-width: 800px;
  margin: 0 auto;
}
.cu-detail-faq h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 32px;
}
.cu-detail-faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cu-dfaq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.3s;
}
.cu-dfaq-item.open { border-color: rgba(0,229,255,0.2); }
.cu-dfaq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  gap: 16px;
}
.cu-dfaq-q span { flex: 1; }
.cu-dfaq-chev {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.3s;
  color: var(--text2);
}
.cu-dfaq-item.open .cu-dfaq-chev {
  transform: rotate(180deg);
  color: var(--cyan);
  background: rgba(0,229,255,0.08);
}
.cu-dfaq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.cu-dfaq-item.open .cu-dfaq-a {
  max-height: 300px;
  padding: 0 24px 20px;
}
.cu-dfaq-a p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  padding-left: 16px;
  border-left: 3px solid rgba(0,229,255,0.15);
}

/* ============================
   NAV
   ============================ */
#nav.hidden { transform: translateY(-100%); }

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1000px) {
  .cu-sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .cu-stats-grid, .cu-scenario-metrics { grid-template-columns: repeat(2, 1fr); }
  .cu-wf-track { flex-wrap: wrap; }
  .cu-wf-track::before { display: none; }
  .cu-wf-item { flex: 0 0 calc(33% - 12px); padding-top: 0; }
  .cu-wf-dot { display: none; }
  .cu-others-grid { grid-template-columns: repeat(2, 1fr); }
  .cu-segments-grid { grid-template-columns: repeat(2, 1fr); }
  .cu-ba-grid { grid-template-columns: 1fr; }
  .cu-ba-vs { margin: -12px auto; }
  .cu-pain-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  /* Hub hero */
  .cu-hub-hero { padding: 100px 20px 50px; min-height: auto; }
  .cu-hub-hero h1 { font-size: 30px; }
  .cu-hub-sub { font-size: 15px; }
  .cu-glow-1, .cu-glow-2 { display: none; }

  /* Sectors */
  .cu-sectors { padding: 0 0 60px; }
  .cu-sectors-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .cu-sector-card { padding: 22px 18px; }
  .cu-sector-card h3 { font-size: 16px; }
  .cu-sc-icon { width: 44px; height: 44px; font-size: 22px; }

  /* Detail hero */
  .cu-detail-hero { padding: 100px 20px 50px; }
  .cu-detail-hero h1 { font-size: 28px !important; }
  .cu-detail-hero-sub { font-size: 15px; }
  .cu-detail-icon-large { width: 60px; height: 60px; font-size: 30px; }

  /* Stats */
  .cu-stats { padding: 0 20px 50px; }
  .cu-stats-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .cu-stat { padding: 20px; }
  .cu-stat-val { font-size: 24px; }

  /* Problem */
  .cu-problem { padding: 50px 20px; }
  .cu-problem h2 { font-size: 22px; }
  .cu-problem p { font-size: 15px; }
  .cu-pain-item { padding: 12px 14px; font-size: 13px; }

  /* Solution */
  .cu-solution { padding: 50px 20px; }
  .cu-solution h2 { font-size: 22px; }
  .cu-step { gap: 16px; padding: 24px 0; }
  .cu-step-num { width: 44px; height: 44px; font-size: 15px; }
  .cu-step-body h3 { font-size: 17px; }
  .cu-step-body p { font-size: 14px; }
  .cu-steps::before { left: 21px; }

  /* Workflow */
  .cu-workflow { padding: 50px 20px; }
  .cu-workflow h2 { font-size: 22px; margin-bottom: 32px; }
  .cu-wf-item { flex: 0 0 calc(50% - 8px); }

  /* Use cases */
  .cu-usecases { padding: 50px 20px; }
  .cu-usecases h2 { font-size: 22px; }
  .cu-uc-list { grid-template-columns: 1fr; }
  .cu-uc-item { padding: 14px 16px; font-size: 14px; }

  /* Scenario */
  .cu-scenario { padding: 50px 20px; }
  .cu-scenario h2 { font-size: 20px; }
  .cu-scenario-text { font-size: 14px; }
  .cu-scenario-metrics { grid-template-columns: repeat(2, 1fr) !important; gap: 10px; }
  .cu-scenario-metric { padding: 18px; }
  .cu-scenario-val { font-size: 22px; }

  /* Unique sections */
  .cu-unique { padding: 50px 20px; }
  .cu-unique h2 { font-size: 22px; margin-bottom: 24px; }

  /* Before/After */
  .cu-ba-card { padding: 20px; }
  .cu-ba-item { font-size: 13px; }

  /* Funnel */
  .cu-funnel-stage { gap: 12px; }
  .cu-funnel-bar { height: 30px; }
  .cu-funnel-label { min-width: 60px; font-size: 12px; }
  .cu-funnel-value { min-width: 40px; font-size: 14px; }
  .cu-funnel-desc { font-size: 11px; }

  /* Segments */
  .cu-segments-desc { font-size: 14px; }
  .cu-segment-card { padding: 18px; }
  .cu-segment-card h4 { font-size: 14px; }

  /* Multi-client */
  .cu-client-card { padding: 18px 20px; grid-template-columns: 1fr; }
  .cu-client-stats { flex-direction: column; gap: 4px; }

  /* ICP */
  .cu-icp-card { flex-direction: column; align-items: flex-start; gap: 12px; padding: 18px 20px; }
  .cu-icp-saas { min-width: auto; }
  .cu-icp-stats { flex-direction: column; gap: 4px; }

  /* Professional types */
  .cu-proftypes-grid { grid-template-columns: 1fr; }
  .cu-proftype-card { padding: 20px; }
  .cu-proftype-card h4 { font-size: 16px; }

  /* Nurturing */
  .cu-nurturing-timeline::before { left: 40px; }
  .cu-nurt-step { gap: 12px; padding: 14px 0; }
  .cu-nurt-day { width: 80px; font-size: 11px; }
  .cu-nurt-body { padding: 12px 14px; }
  .cu-nurt-action { font-size: 13px; }
  .cu-nurt-goal { font-size: 12px; }
  .cu-nurt-rate { min-width: 60px; font-size: 13px; }

  /* Others */
  .cu-others { padding: 50px 20px; }
  .cu-others h2 { font-size: 20px; }
  .cu-others-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px; }
  .cu-other-card { padding: 16px 14px; }

  /* Detail FAQ */
  .cu-detail-faq { padding: 50px 20px; }
  .cu-detail-faq h2 { font-size: 20px; }
  .cu-dfaq-q { padding: 16px 18px; font-size: 14px; }
  .cu-dfaq-item.open .cu-dfaq-a { padding: 0 18px 16px; }
  .cu-dfaq-a p { font-size: 13px; }
}

@media (max-width: 600px) {
  .cu-sectors-grid { grid-template-columns: 1fr !important; }
  .cu-stats-grid, .cu-scenario-metrics { grid-template-columns: 1fr !important; }
  .cu-uc-list { grid-template-columns: 1fr; }
  .cu-wf-item { flex: 0 0 100%; }
  .cu-others-grid { grid-template-columns: 1fr !important; }
  .cu-detail-hero { padding: 90px 16px 40px; }
  .cu-segments-grid { grid-template-columns: 1fr; }
  .cu-nurt-step { flex-wrap: wrap; }
  .cu-nurt-day { width: auto; }
  .cu-nurt-day::after { display: none; }
  .cu-nurturing-timeline::before { display: none; }
  .cu-nurt-rate { width: 100%; text-align: left; }
  .cu-funnel-info { gap: 8px; }
  .cu-funnel-bar { height: 24px; }
}

@media (max-width: 480px) {
  .cu-hub-hero h1 { font-size: 24px; }
  .cu-detail-hero h1 { font-size: 22px !important; }
  .cu-problem h2, .cu-solution h2, .cu-workflow h2,
  .cu-usecases h2, .cu-unique h2 { font-size: 20px; }
  .cu-stat-val { font-size: 20px; }
  .cu-scenario-val { font-size: 18px; }
  .cu-step-num { width: 36px; height: 36px; font-size: 13px; }
  .cu-steps::before { left: 17px; }
}