/* Shared visual polish for portfolio demo sites */
:root {
  --dc-pad: clamp(1rem, 4vw, 2.5rem);
  --dc-pad-lg: clamp(3rem, 7vw, 5.5rem);
  --dc-max: 1200px;
  --dc-radius: 16px;
  --dc-radius-lg: 24px;
  --dc-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
  --dc-shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.12);
  --dc-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

::selection {
  background: rgba(124, 108, 255, 0.25);
}

.dc-back {
  backdrop-filter: blur(10px);
  transition: transform 0.25s var(--dc-ease), opacity 0.25s;
}

.dc-back:hover {
  transform: translateY(-1px);
  opacity: 0.85;
}

/* Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav .logo,
.site-nav > .logo {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid currentColor;
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.85;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links ul {
  display: flex;
  gap: clamp(1rem, 3vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  transition: opacity 0.2s;
}

.nav-links a:hover {
  opacity: 0.7;
}

.nav-cta {
  white-space: nowrap;
}

/* Hero rhythm */
.hero,
header.hero,
.hero-inner {
  width: 100%;
  max-width: var(--dc-max);
  margin-inline: auto;
}

.hero-visual,
.visual,
.hero-card,
.hero-img,
.hero-shot,
.img-block {
  border-radius: var(--dc-radius-lg);
  box-shadow: var(--dc-shadow);
}

/* Sections */
section,
.about,
.cases,
.schedule,
.pricing,
.programs,
.team,
.features,
.story,
.trips,
.values,
.testimonial,
.cta,
.contact {
  scroll-margin-top: 4rem;
}

.section-title {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

/* Interactive cards */
.menu-item,
.svc,
.feat,
.prog,
.member,
.trip,
.review,
.case-item,
.project,
.item {
  transition:
    transform 0.3s var(--dc-ease),
    box-shadow 0.3s var(--dc-ease),
    border-color 0.3s;
}

.menu-item:hover,
.feat:hover,
.prog:hover,
.member:hover,
.trip:hover,
.review:hover {
  transform: translateY(-3px);
  box-shadow: var(--dc-shadow-hover);
}

.project:hover,
.item:hover {
  transform: scale(1.015);
}

/* Buttons */
.btn,
.btn--fill,
.btn--ghost {
  transition:
    transform 160ms var(--dc-ease),
    box-shadow 0.25s,
    opacity 0.25s;
}

.btn:hover,
.btn--fill:hover,
.btn--ghost:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(0.97);
}

/* Info strips */
.demo-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: 1.25rem var(--dc-pad);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-block: 1px solid rgba(128, 128, 128, 0.2);
}

.demo-strip strong {
  font-weight: 600;
}

/* Pricing cards (Nexus etc.) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  max-width: var(--dc-max);
  margin: 0 auto;
  padding-inline: var(--dc-pad);
}

.pricing-card {
  padding: 2rem 1.5rem;
  border-radius: var(--dc-radius);
  border: 1px solid rgba(128, 128, 128, 0.2);
  text-align: left;
}

.pricing-card--featured {
  transform: scale(1.02);
}

.pricing-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.pricing-card .amount {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  margin: 0.75rem 0;
}

.pricing-card ul {
  list-style: none;
  margin: 1rem 0 1.5rem;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  opacity: 0.85;
}

.pricing-card li::before {
  content: "✓ ";
  opacity: 0.6;
}

/* Footer polish */
footer,
.contact {
  padding-block: 2rem;
  padding-inline: var(--dc-pad);
}

/* Tablet */
@media (max-width: 1024px) {
  .hero,
  header.hero,
  .hero-inner {
    gap: clamp(1.5rem, 4vw, 2.5rem) !important;
  }

  .projects {
    grid-template-columns: 1fr 1fr !important;
  }

  .collection {
    grid-template-columns: 1fr 1fr !important;
  }

  .collection .item:last-child {
    grid-column: 1 / -1;
    aspect-ratio: 21 / 9 !important;
  }

  .metrics {
    grid-template-columns: repeat(3, 1fr) !important;
  }

  .values {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 1.5rem !important;
  }
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 0 0.25rem;
    border-top: 1px solid rgba(128, 128, 128, 0.15);
    margin-top: 0.25rem;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links ul {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  .nav-links li,
  .nav-links > a {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(128, 128, 128, 0.1);
  }

  .nav-cta {
    margin-top: 0.5rem;
    text-align: center;
    padding: 0.75rem 1rem !important;
  }

  .hero,
  header.hero,
  .hero-inner {
    grid-template-columns: 1fr !important;
    min-height: auto !important;
    padding-block: clamp(2.5rem, 8vw, 4rem) !important;
  }

  .hero-visual,
  .visual {
    order: -1;
    min-height: 260px !important;
    aspect-ratio: 16 / 10;
  }

  .hero-card {
    order: -1;
    aspect-ratio: 16 / 10;
    max-height: 320px;
  }

  .hero-img,
  .hero-shot {
    margin-inline: var(--dc-pad) !important;
    aspect-ratio: 16 / 10;
  }

  .stats {
    gap: 1.5rem !important;
    flex-wrap: wrap;
  }

  .about,
  .about-inner {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }

  .projects {
    grid-template-columns: 1fr !important;
  }

  .project {
    aspect-ratio: 16 / 10 !important;
    min-height: 200px;
  }

  .collection {
    grid-template-columns: 1fr !important;
  }

  .collection .item:last-child {
    grid-column: auto;
    aspect-ratio: 3 / 4 !important;
  }

  .values {
    grid-template-columns: 1fr !important;
    text-align: left !important;
  }

  .demo-strip {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
  }

  .pricing-card--featured {
    transform: none;
  }

  h1 {
    font-size: clamp(2rem, 9vw, 3.5rem) !important;
  }
}

@media (max-width: 480px) {
  .dc-back {
    max-width: calc(100vw - 1rem);
    font-size: 0.58rem;
  }

  .section-title {
    font-size: clamp(1.75rem, 7vw, 2.25rem) !important;
  }

  .programs h2,
  .schedule h2,
  .features h2,
  .trips h2 {
    font-size: clamp(1.75rem, 8vw, 2.5rem) !important;
  }
}