:root {
  --ci-gold: #F9C400;
  --ci-gold-1: #fbbf24;
  --ci-gold-2: #f59e0b;
  --ci-gold-3: #d97706;
  --ci-black: #0F0F10;
  --ci-white: #ffffff;
  --ci-border: #d6d7db;
  --ci-muted: #6b6e76;
  --ci-error: #dc2626;
  --ci-success: #16a34a;
  --ci-info: #2563eb;
  --ff-base: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --ff-heading: "Poppins", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --fs-base: 16px;
  --fs-xs: clamp(14px, 3.2vw, 14px);
  --fs-sm: clamp(15px, 3.4vw, 15px);
  --fs-md: clamp(16px, 2.6vw, 17px);
  --fs-lg: clamp(18px, 2.4vw, 19px);
  --fs-h2: clamp(24px, 4.2vw, 32px);
  --lh: 1.6;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 88px;
  --space-section-sm: var(--space-4);
  --space-section-md: var(--space-5);
  --space-section-lg: var(--space-6);
  --gap-1: 10px;
  --gap-2: 16px;
  --gap-3: 24px;
  --gap-4: 36px;
  --gap-5: 40px;
  --container-max: 1200px;
  --container-pad: 16px;
  --shadow-1: 0 10px 30px rgba(0,0,0,0.08);
  --shadow-2: 0 12px 32px rgba(0,0,0,0.12);
  --__padY: clamp(var(--space-4), 8vw, var(--space-7));
  --__gap2: var(--gap-2);
  --__gap3: var(--gap-3);
  --__gap4: var(--gap-4);
  --__gap5: var(--gap-5);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ci-black: #ffffff;
    --ci-white: #1a1a1a;
    --ci-border: #3f3f46;
    --ci-muted: #a1a1aa;
    --ci-error: #ef4444;
    --ci-success: #22c55e;
    --ci-info: #3b82f6;
    --shadow-1: 0 10px 30px rgba(0,0,0,0.2);
    --shadow-2: 0 12px 32px rgba(0,0,0,0.3);
  }

  .transition-section {
    background: var(--ci-white);
    color: var(--ci-black);
  }

  .transition-kicker {
    color: rgba(255,255,255,0.56);
  }

  .transition-sub {
    color: rgba(255,255,255,0.78);
  }

  .transition-bullets li::before {
    box-shadow: 0 0 0 3px rgba(253,186,18,0.35);
  }

  .transition-name {
    color: rgba(255,255,255,0.72);
  }

  .transition-marquee {
    background: linear-gradient(180deg, rgba(253,186,18,0.12), rgba(0,0,0,0));
    border-top: 1px solid rgba(255,255,255,0.12);
    border-bottom: 1px solid rgba(255,255,255,0.12);
  }

  .marquee-track {
    color: rgba(255,255,255,0.85);
  }

  .transition-portrait {
    -webkit-mask-image: linear-gradient(to bottom, #fff 72%, rgba(255,255,255,0) 100%);
    mask-image: linear-gradient(to bottom, #fff 72%, rgba(255,255,255,0) 100%);
  }
}

@media (max-width: 767.98px) {
  :root {
    --space-section-sm: calc(var(--space-4) - 6px);
    --space-section-md: calc(var(--space-5) - 8px);
    --space-section-lg: calc(var(--space-6) - 10px);
  }
}

@media (min-width: 1200px) {
  :root {
    --container-pad: 24px;
  }
}

.transition-section {
  background: var(--ci-white);
  color: var(--ci-black);
  padding: var(--__padY) 0;
  margin: var(--space-6) 0;
  isolation: isolate;
  overflow: hidden;
}

.transition-section .container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.transition-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: var(--__gap4);
}

@media (min-width: 992px) {
  .transition-grid {
    grid-template-columns: 1.08fr 0.92fr;
    column-gap: clamp(var(--__gap4), 6vw, 96px);
  }
}

.transition-copy {
  display: grid;
  gap: var(--__gap3);
}

.transition-kicker {
  margin: 0;
  font-size: var(--fs-xs);
  color: var(--ci-muted);
  letter-spacing: 0.3px;
}

.transition-title {
  margin: 0;
  font-family: var(--ff-heading);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.06;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
  padding: 0 0.02em;
}

.transition-title em {
  font-style: normal;
}

.transition-sub {
  margin: 0;
  max-width: 900px;
  font-size: var(--fs-lg);
  line-height: var(--lh);
  color: var(--ci-muted);
}

.transition-bullets {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--gap-1);
  font-size: var(--fs-md);
  line-height: 1.55;
}

.transition-bullets li {
  position: relative;
  padding-left: 22px;
}

.transition-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ci-gold-2);
  box-shadow: 0 0 0 3px rgba(253,186,18,0.24);
}

.transition-meta {
  display: grid;
  gap: var(--__gap3);
}

.transition-name {
  font-size: var(--fs-sm);
  color: var(--ci-muted);
}

.transition-cta {
  display: flex;
  gap: var(--__gap2);
  flex-wrap: wrap;
}

.transition-cta .btn {
  border-radius: var(--radius);
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.transition-cta .btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.transition-cta .btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.transition-media {
  margin: 0;
  display: grid;
  place-items: center;
}

.transition-portrait {
  width: min(100%, 520px);
  height: auto;
  display: block;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  image-rendering: -webkit-optimize-contrast;
  -webkit-mask-image: linear-gradient(to bottom, #000 72%, rgba(0,0,0,0) 100%);
  -webkit-mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-image: linear-gradient(to bottom, #000 72%, rgba(0,0,0,0) 100%);
  mask-size: 100% 100%;
  mask-repeat: no-repeat;
}

.transition-marquee {
  margin-top: var(--__gap5);
  height: 42px;
  display: grid;
  place-items: center;
  border-top: 1px solid rgba(0,0,0,0.08);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  background: linear-gradient(180deg, rgba(253,186,18,0.08), rgba(255,255,255,0));
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-track {
  display: inline-block;
  white-space: nowrap;
  font-weight: 600;
  font-size: clamp(13px, 1.2vw, 15px);
  letter-spacing: 0.2px;
  color: var(--ci-black);
  animation: marquee 18s linear infinite;
  padding-block: 8px;
}

.transition-marquee span {
  display: inline-block;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-33.333%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track {
    animation: none;
  }
}

.transition-section :focus-visible {
  outline: 2px solid var(--ci-gold-2);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}