/* ==========================================================================
   ANIMA — Elite Layer v4
   Design System semântico · motion · depth · conversão
   ========================================================================== */

:root {
  /* Semântica de marca */
  --color-primary: var(--green-800);
  --color-primary-deep: var(--green-900);
  --color-secondary: var(--green-600);
  --color-accent: var(--gold-400);
  --color-accent-hover: var(--gold-300);
  --color-premium: var(--gold-500);
  --color-surface: var(--surface-light);
  --color-surface-elevated: var(--surface-white);
  --color-text: var(--text-primary);
  --color-text-muted: var(--text-muted);
  --color-text-on-dark: var(--text-inverse);
  --color-card-light: rgba(255, 255, 255, 0.72);
  --color-card-dark: rgba(255, 255, 255, 0.05);
  --color-border-premium: rgba(180, 144, 48, 0.22);

  /* Espaçamento de componentes */
  --gap-section: clamp(2.5rem, 5vw, 4rem);
  --gap-card: 1.25rem;
  --pad-card: clamp(1.25rem, 2.5vw, 1.75rem);

  /* Motion premium */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-micro: 0.22s;
  --duration-hover: 0.45s;

  /* Profundidade */
  --shadow-premium: 0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 20px 50px rgba(10, 26, 17, 0.18);
  --shadow-float: 0 12px 40px rgba(10, 26, 17, 0.24),
    0 0 0 1px rgba(180, 144, 48, 0.08);
  --blur-premium: blur(22px);
}

/* Grain único — evita duplicação com premium layer */
.page::after {
  display: none;
}

/* Skip link */
.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: calc(var(--z-nav) + 10);
  padding: 0.625rem 1rem;
  border-radius: var(--radius-md);
  background: var(--green-900);
  color: var(--text-inverse);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid var(--color-border-premium);
  transform: translateY(-200%);
  transition: transform var(--duration-micro) var(--ease-out-expo);
}

.skip-link:focus {
  transform: translateY(0);
}

/* Nav compacta — muitos links */
@media (min-width: 901px) {
  .nav-links {
    gap: clamp(0.5rem, 1.2vw, 1.125rem);
  }

  .nav-links a {
    font-size: clamp(0.72rem, 0.85vw, 0.8125rem);
    letter-spacing: 0.03em;
  }
}

/* Superfícies premium unificadas */
.glass,
.diff-cell,
.plan-card,
.scholarships-card,
.scholarships-panel,
.partners-become,
.mod-card,
.ems-benefit,
.about-card {
  transition:
    transform var(--duration-hover) var(--ease-out-expo),
    box-shadow var(--duration-hover) var(--ease-out-expo),
    border-color var(--duration-hover) var(--ease-out-expo);
}

@media (hover: hover) {
  .diff-cell:hover,
  .scholarships-card:hover,
  .ems-benefit:hover,
  .mod-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-border-premium);
  }

  .plan-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-premium), var(--shadow-glow-gold);
  }

  .gallery-item:hover {
    transform: translateY(-4px) scale(1.01);
  }
}

/* Cards com profundidade glass */
.section-dark .scholarships-card,
.section-dark .partners-become {
  backdrop-filter: var(--blur-premium);
  -webkit-backdrop-filter: var(--blur-premium);
}

/* Hierarquia de seção */
.section-header--center .section-label {
  justify-content: center;
}

.section + .section {
  scroll-margin-top: 5.625rem;
}

/* Stagger reveal via data-delay */
[data-stagger] [data-reveal]:not(.is-visible) {
  opacity: 0;
  transform: translateY(1.25rem);
}

[data-stagger].is-stagger-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Reveal direcional refinado */
[data-reveal='right']:not(.is-visible) {
  transform: translateX(2rem);
}

[data-reveal='left']:not(.is-visible) {
  transform: translateX(-2rem);
}

[data-reveal='scale']:not(.is-visible) {
  transform: scale(0.94);
}

/* Galeria cinematográfica */
.gallery-item {
  overflow: hidden;
  border-radius: var(--radius-lg);
  transition: transform var(--duration-hover) var(--ease-out-expo);
}

.gallery-item img {
  transition: transform 0.8s var(--ease-out-expo);
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item-caption {
  background: linear-gradient(180deg, transparent 0%, rgba(10, 26, 17, 0.75) 100%);
}

/* Planos — destaque Master */
.plan-card-dark {
  box-shadow: var(--shadow-premium), var(--shadow-glow-gold);
  border-color: var(--color-border-premium);
}

/* CTA flutuante premium */
.wa-float {
  box-shadow: var(--shadow-float);
  transition:
    transform var(--duration-micro) var(--ease-spring),
    box-shadow var(--duration-hover) var(--ease-out-expo);
}

@media (hover: hover) {
  .wa-float:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-md), 0 0 32px rgba(37, 211, 102, 0.35);
  }
}

/* Trust strip refinado */
.trust-strip {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Hero — micro brilho no CTA */
.hero-actions .btn-primary {
  animation: elite-cta-glow 4s ease-in-out infinite;
}

@keyframes elite-cta-glow {
  0%, 100% { box-shadow: var(--shadow-btn); }
  50% { box-shadow: var(--shadow-btn), 0 0 28px rgba(180, 144, 48, 0.28); }
}

/* Marquee suave */
.marquee-item {
  transition: color var(--duration-micro);
}

.marquee:hover .marquee-item {
  color: var(--gold-300);
}

/* Modal premium depth */
.mod-modal-panel {
  box-shadow: var(--shadow-modal), 0 0 0 1px rgba(180, 144, 48, 0.12);
}

/* FAQ accordion polish */
.faq-item.is-open {
  border-color: var(--color-border-premium);
  box-shadow: var(--shadow-sm);
}

.faq-question-icon {
  transition: transform var(--duration-micro) var(--ease-out-expo);
}

.faq-item.is-open .faq-question-icon {
  transform: rotate(45deg);
}

/* Footer map frame */
.footer-map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* Loading state — hero video */
.hero-video-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--green-900);
  opacity: 1;
  transition: opacity 0.8s var(--ease-smooth);
  pointer-events: none;
  z-index: 2;
}

.hero.is-loaded .hero-video-wrap::after {
  opacity: 0;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero-actions .btn-primary {
    animation: none;
  }

  [data-reveal],
  [data-reveal='right'],
  [data-reveal='left'],
  [data-reveal='scale'] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .gallery-item:hover img,
  .diff-cell:hover,
  .plan-card:hover,
  .scholarships-card:hover,
  .mod-card:hover {
    transform: none;
  }
}

/* 4K — container mais amplo */
@media (min-width: 1600px) {
  :root {
    --container-max: 88rem;
  }

  .hero-stage {
    max-width: 92rem;
  }
}

/* Mobile — touch targets */
@media (max-width: 600px) {
  .btn,
  .faq-question,
  .nav-burger {
    min-height: 44px;
  }

  .nav-links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}