/* ============================================
   AI Horizon Labs - Estilos Responsivos
   ============================================ */

/* === Tablet (≤ 1024px) === */
@media (max-width: 1024px) {
  :root {
    --font-size-base: 15px;
    --spacing-xl: 2.5rem;
    --spacing-2xl: 3rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .section-title h2 {
    font-size: 2rem;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* === Mobile Large (≤ 768px) === */
@media (max-width: 768px) {
  :root {
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
  }

  /* Tipografia */
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }

  /* Hero */
  .hero {
    padding: var(--spacing-xl) 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero .btn {
    display: block;
    margin: var(--spacing-sm) auto;
    max-width: 250px;
  }

  /* Navegação */
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
  }

  .dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--color-primary);
    margin-left: var(--spacing-sm);
  }

  .dropdown.active .dropdown-menu {
    display: block;
  }

  .mobile-menu-toggle {
    display: block;
  }

  /* Grid */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  /* Stats */
  .stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .stat-number {
    font-size: 2.5rem;
  }

  /* Cards */
  .card {
    padding: var(--spacing-md);
  }

  /* News */
  .news-item {
    flex-direction: column;
  }

  .news-date {
    min-width: auto;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer {
    padding: var(--spacing-lg) 0 var(--spacing-sm);
  }

  /* Section */
  section {
    padding: var(--spacing-lg) 0;
  }

  .section-title {
    margin-bottom: var(--spacing-lg);
  }

  .section-title h2 {
    font-size: 1.75rem;
  }
}

/* === Mobile Small (≤ 480px) === */
@media (max-width: 480px) {
  :root {
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }

  .card {
    padding: var(--spacing-sm);
  }

  .member-card img {
    width: 120px;
    height: 120px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
  }
}

/* === Landscape Mobile === */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    padding: var(--spacing-lg) 0;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  section {
    padding: var(--spacing-md) 0;
  }
}

/* === Print === */
@media print {
  .header,
  .footer,
  .mobile-menu-toggle,
  .btn,
  .social-links {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  section {
    page-break-inside: avoid;
  }
}

/* === High Contrast Mode === */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #000080;
    --color-text-dark: #000000;
    --color-border: #000000;
  }

  .card {
    border: 2px solid var(--color-border);
  }

  a:focus {
    outline: 3px solid var(--color-primary);
  }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}


/* Mobile */
@media (max-width: 768px) {
  .hero::before {
    background-image: url("../images/capa_site_mobile.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
  }
}