/* circuits/ — premium motion + mobile-first (circuits only) */
:root {
  --atlas: #0f1f35;
  --atlas-mid: #132c47;
  --atlas-soft: rgba(15, 31, 53, 0.72);
  --accent: #e8b44a;
  --accent-hot: #f6ba2a;
  --cream: #faf6ef;
  --cream-deep: #f0e6d8;
  --card: #ffffff;
  --glass: rgba(255, 255, 255, 0.09);
  --radius-lg: 1.75rem;
  --radius-xl: 2.25rem;
  --shadow-deep: 0 28px 80px rgba(8, 18, 36, 0.18);
  --shadow-card: 0 16px 48px rgba(19, 44, 71, 0.1);
  --tap: 2.75rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(232, 180, 74, 0.12), transparent 55%),
    linear-gradient(180deg, var(--cream-deep) 0%, var(--cream) 38%, #fffcfa 100%);
  color: var(--atlas-mid);
  font-size: 1.0625rem;
  line-height: 1.68;
}

/* subtle film grain */
body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9998;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.circuit-wrap {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.25rem 5.5rem;
}

@media (min-width: 768px) {
  .circuit-wrap {
    max-width: 52rem;
  }
}

@media (min-width: 1024px) {
  .circuit-wrap {
    max-width: 58rem;
  }
}

/* —— Hero (full-bleed, layered like legacy circuits) —— */
.circuit-hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: flex-end;
  padding: 6rem 1.25rem 2.75rem;
  margin: 0 calc(50% - 50vw);
  width: 100vw;
  max-width: none;
  color: #fff;
  overflow: hidden;
}

.circuit-hero__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transform: scale(1.02);
  animation: heroKen 22s ease-in-out infinite alternate;
}

@keyframes heroKen {
  0% {
    transform: scale(1.02) translate(0, 0);
  }
  100% {
    transform: scale(1.08) translate(-1.2%, 0.6%);
  }
}

.circuit-hero__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(6, 14, 28, 0.55) 0%, rgba(19, 44, 71, 0.35) 42%, rgba(5, 12, 26, 0.88) 100%),
    radial-gradient(90% 60% at 20% 20%, rgba(232, 180, 74, 0.12), transparent 55%);
}

.circuit-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 44rem;
  margin: 0 auto;
  width: 100%;
  padding: 1.5rem 1.35rem 1.75rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.03) 100%);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.circuit-eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: var(--glass);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-hot);
}

.circuit-hero h1 {
  margin: 0.85rem 0 0;
  font-size: clamp(1.95rem, 6.2vw, 3rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  text-shadow: 0 2px 28px rgba(0, 0, 0, 0.35);
}

.circuit-hero .lead {
  margin-top: 1rem;
  font-size: 1.02rem;
  line-height: 1.62;
  color: rgba(255, 255, 255, 0.92);
  max-width: 38rem;
}

.circuit-hero .route-line {
  margin-top: 0.65rem;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.78);
}

.circuit-hero__actions {
  margin-top: 1.65rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.circuit-hero__actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0 1.45rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.circuit-hero__actions a:active {
  transform: scale(0.98);
}

.circuit-hero__actions .btn-primary {
  background: linear-gradient(120deg, var(--accent-hot), #d9a23a);
  color: #0f1f35;
  box-shadow: 0 10px 32px rgba(246, 186, 42, 0.35);
}

.circuit-hero__actions .btn-primary:hover {
  box-shadow: 0 14px 40px rgba(246, 186, 42, 0.45);
}

.circuit-hero__actions .btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.circuit-hero__actions .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* —— Motion photo showcase (legacy-style crossfade) —— */
.circuit-showcase {
  margin: -2.5rem calc(50% - 50vw) 0;
  width: 100vw;
  max-width: none;
  padding: 0 1.25rem 2.5rem;
  position: relative;
  z-index: 3;
}

.circuit-showcase__frame {
  position: relative;
  margin: 0 auto;
  max-width: 58rem;
  min-height: clamp(220px, 52vw, 420px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-deep);
  border: 1px solid rgba(19, 44, 71, 0.12);
  background: #0b1524;
}

.circuit-showcase__slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  animation-duration: 30s;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
}

.circuit-showcase__slide--a {
  animation-name: circuitSlideA;
}
.circuit-showcase__slide--b {
  animation-name: circuitSlideB;
}
.circuit-showcase__slide--c {
  animation-name: circuitSlideC;
}
.circuit-showcase__slide--d {
  animation-name: circuitSlideD;
}
.circuit-showcase__slide--e {
  animation-name: circuitSlideE;
}
.circuit-showcase__slide--f {
  animation-name: circuitSlideF;
}

.circuit-showcase__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: clamp(220px, 52vw, 420px);
}

/* imgTag adds .circuit-photo — reset height inside showcase */
.circuit-showcase__slide img.circuit-photo {
  height: 100%;
  min-height: clamp(220px, 52vw, 420px);
}

.circuit-showcase__slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(5, 12, 26, 0.55) 100%);
  pointer-events: none;
}

@keyframes circuitSlideA {
  0% {
    opacity: 0;
    transform: scale(1.04);
  }
  6% {
    opacity: 1;
    transform: scale(1);
  }
  24% {
    opacity: 1;
    transform: scale(1.02);
  }
  28% {
    opacity: 0;
    transform: scale(1.05);
  }
  100% {
    opacity: 0;
  }
}

@keyframes circuitSlideB {
  0%,
  22% {
    opacity: 0;
    transform: scale(1.05);
  }
  28% {
    opacity: 1;
    transform: scale(1);
  }
  46% {
    opacity: 1;
    transform: scale(1.03);
  }
  52% {
    opacity: 0;
    transform: scale(1.06);
  }
  100% {
    opacity: 0;
  }
}

@keyframes circuitSlideC {
  0%,
  46% {
    opacity: 0;
    transform: scale(1.04);
  }
  52% {
    opacity: 1;
    transform: scale(1);
  }
  70% {
    opacity: 1;
    transform: scale(1.025);
  }
  76% {
    opacity: 0;
    transform: scale(1.05);
  }
  100% {
    opacity: 0;
  }
}

@keyframes circuitSlideD {
  0%,
  48% {
    opacity: 0;
    transform: scale(1.05);
  }
  54% {
    opacity: 1;
    transform: scale(1);
  }
  64% {
    opacity: 1;
    transform: scale(1.02);
  }
  68%,
  100% {
    opacity: 0;
    transform: scale(1.05);
  }
}

@keyframes circuitSlideE {
  0%,
  64% {
    opacity: 0;
    transform: scale(1.05);
  }
  70% {
    opacity: 1;
    transform: scale(1);
  }
  80% {
    opacity: 1;
    transform: scale(1.02);
  }
  84%,
  100% {
    opacity: 0;
    transform: scale(1.05);
  }
}

@keyframes circuitSlideF {
  0%,
  80% {
    opacity: 0;
    transform: scale(1.05);
  }
  86% {
    opacity: 1;
    transform: scale(1);
  }
  96% {
    opacity: 1;
    transform: scale(1.02);
  }
  100% {
    opacity: 0;
    transform: scale(1.05);
  }
}

body.circuit-travel {
  letter-spacing: 0.01em;
}

.circuit-showcase__caption {
  max-width: 58rem;
  margin: 1rem auto 0;
  padding: 1.15rem 1.4rem 1.25rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, #fffefb 0%, #faf6ef 55%, #f3ebe0 100%);
  border: 1px solid rgba(124, 106, 88, 0.18);
  box-shadow: 0 14px 40px rgba(19, 44, 71, 0.08);
}

.circuit-showcase__kicker {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #7c6a58;
}

.circuit-showcase__caption h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3.8vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--atlas-mid);
}

.circuit-showcase__caption p {
  margin: 0.55rem 0 0;
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--atlas-soft);
  font-style: italic;
}

/* —— Sections —— */
.circuit-section {
  margin-top: 3rem;
}

.circuit-section h2 {
  margin: 0 0 1.1rem;
  font-size: clamp(1.5rem, 4.2vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--atlas-mid);
  position: relative;
  display: inline-block;
}

.circuit-section h2::after {
  content: "";
  display: block;
  margin-top: 0.35rem;
  width: 3.5rem;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-hot), rgba(232, 180, 74, 0.2));
}

.circuit-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.35rem;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(19, 44, 71, 0.07);
}

.circuit-prose p {
  margin: 0 0 1.05rem;
  font-size: 1.02rem;
}

.circuit-prose p:last-child {
  margin-bottom: 0;
}

/* —— Day cards —— */
.day-stack {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.day-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(19, 44, 71, 0.09);
  box-shadow: var(--shadow-card);
  position: relative;
}

.day-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-hot), #c9952e);
  opacity: 0.85;
  z-index: 1;
}

.circuit-photo {
  width: 100%;
  height: 14rem;
  object-fit: cover;
  display: block;
  transition: transform 0.55s ease;
}

.day-card:hover .circuit-photo {
  transform: scale(1.04);
}

@media (min-width: 640px) {
  .circuit-photo {
    height: 16rem;
  }
}

.day-card__body {
  padding: 1.2rem 1.3rem 1.45rem;
  position: relative;
  z-index: 2;
}

.day-card__label {
  margin: 0;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #b45309;
}

.day-card h3 {
  margin: 0.4rem 0 0.6rem;
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1.22;
  color: var(--atlas);
}

.day-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 2.35rem;
  padding: 0 0.85rem;
  border-radius: 999px;
  background: linear-gradient(180deg, #eef3fb, #e4ecf8);
  color: var(--atlas-mid);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid rgba(19, 44, 71, 0.08);
}

.day-card__copy {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.68;
  color: var(--atlas-soft);
}

/* —— Highlights —— */
.hl-grid {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

@media (min-width: 520px) {
  .hl-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
}

.hl-item {
  padding: 0.95rem 1.05rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, #f6f8fc 0%, #eef3fa 100%);
  border: 1px solid rgba(19, 44, 71, 0.07);
  font-size: 0.95rem;
  font-weight: 650;
  line-height: 1.45;
}

/* —— Gallery —— */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 560px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

@media (min-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery-grid figure {
  margin: 0;
  border-radius: 1.1rem;
  overflow: hidden;
  border: 1px solid rgba(19, 44, 71, 0.1);
  box-shadow: 0 10px 28px rgba(19, 44, 71, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.gallery-grid figure:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(19, 44, 71, 0.12);
}

.gallery-grid .circuit-photo {
  height: 12.5rem;
}

@media (min-width: 640px) {
  .gallery-grid .circuit-photo {
    height: 13.5rem;
  }
}

.circuit-footer-links {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(19, 44, 71, 0.1);
  font-size: 0.92rem;
}

.circuit-footer-links a {
  color: #1a5088;
  font-weight: 700;
  text-decoration: none;
}

.circuit-footer-links a:hover {
  text-decoration: underline;
}

.circuit-footer-links a + a {
  margin-left: 1.15rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.circuit-inline-links {
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
}

.circuit-inline-links li {
  margin: 0.35rem 0;
}

.circuit-faq__item {
  border-bottom: 1px solid rgba(19, 44, 71, 0.1);
}

.circuit-faq__item:last-child {
  border-bottom: none;
}

.circuit-faq__item summary {
  cursor: pointer;
  font-weight: 700;
  padding: 1rem 0.25rem;
  list-style: none;
}

.circuit-faq__item summary::-webkit-details-marker {
  display: none;
}

.circuit-faq__a {
  padding: 0 0.25rem 1.1rem;
  color: var(--atlas-mid);
}

.circuit-cta-band {
  margin-top: 0.5rem;
}

.circuit-cta-band__inner .btn-primary,
.circuit-cta-band__inner .btn-ghost {
  display: inline-block;
  margin: 0.35rem 0.5rem 0.35rem 0;
  text-decoration: none;
}

/* reduce motion */
@media (prefers-reduced-motion: reduce) {
  .circuit-hero__media,
  .circuit-showcase__slide,
  .circuit-photo {
    animation: none !important;
    transition: none !important;
  }
  .day-card:hover .circuit-photo {
    transform: none;
  }
}