/* ============================================
   GLOBAL.CSS — Estilos compartidos del sitio
   Tema: Dark Azul/Morado (Inclúyete)
   ============================================ */

/* ===== VARIABLES CSS ===== */
:root {
  /* Paleta principal — Dark Azul/Morado */
  --color-bg: #0f111a;
  --color-bg-alt: #151828;
  --color-surface: #1c2035;
  --color-surface-hover: #232842;
  --color-border: #2a2f4a;

  /* Texto */
  --color-text: #b8c0e0;
  --color-text-muted: #8892b0;
  --color-text-heading: #ccd6f6;

  /* Acentos */
  --color-primary: #7b6cf6; /* Morado principal */
  --color-primary-light: #9d8df7;
  --color-secondary: #64dfdf; /* Cyan/turquesa */
  --color-accent: #f7c948; /* Dorado para destacar */
  --color-accent-soft: #f0b429;

  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #7b6cf6, #5a9cf6);
  --gradient-secondary: linear-gradient(135deg, #64dfdf, #48b1bf);
  --gradient-accent: linear-gradient(135deg, #7b6cf6, #64dfdf);
  --gradient-glow: radial-gradient(
    ellipse at 50% 0%,
    rgba(123, 108, 246, 0.15) 0%,
    transparent 60%
  );

  /* Estado */
  --color-success: #4ade80;
  --color-warning: #fbbf24;
  --color-error: #f87171;

  /* Tipografía */
  --font-primary:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "Outfit", "Inter", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;

  /* Diseño */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  --content-width: 1100px;
  --nav-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(123, 108, 246, 0.15);
  --shadow-glow-strong: 0 0 40px rgba(123, 108, 246, 0.25);
}

/* ===== RESET BÁSICO ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 1.5rem);
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== CONTENEDOR PRINCIPAL ===== */
.site-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
}

/* ===== TIPOGRAFÍA ===== */
h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}
h2 {
  font-size: 1.75rem;
  font-weight: 700;
}
h3 {
  font-size: 1.35rem;
  font-weight: 600;
}
h4 {
  font-size: 1.1rem;
  font-weight: 600;
}

.subtitle {
  font-size: 1.2rem;
  font-family: var(--font-heading);
  color: var(--color-primary-light);
  margin-bottom: 1.5rem;
}

.highlight {
  color: var(--color-accent);
  font-weight: 600;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover,
a:focus {
  color: var(--color-secondary);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== ANIMACIONES ===== */
.fade-in {
  animation: fadeIn 0.7s ease forwards;
  opacity: 0;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    box-shadow: var(--shadow-glow);
  }
  50% {
    box-shadow: var(--shadow-glow-strong);
  }
}

/* ===== HEADER / NAV ===== */
.site-header {
  background-color: rgba(21, 24, 40, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--nav-height);
}

.logo a {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: opacity var(--transition);
}

.logo a:hover {
  opacity: 0.8;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 400;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-sm);
  color: var(--color-text-muted);
  position: relative;
  transition:
    color var(--transition),
    background-color var(--transition);
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--color-text-heading);
  background-color: rgba(123, 108, 246, 0.08);
}

.nav-links a.active {
  color: var(--color-primary-light);
  background-color: rgba(123, 108, 246, 0.12);
  font-weight: 600;
}

/* Botón hamburguesa (móvil) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition);
}

.nav-toggle:hover {
  background-color: rgba(123, 108, 246, 0.1);
}

/* ===== MAIN CONTENT ===== */
.main-content {
  flex-grow: 1;
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* ===== FOOTER ===== */
.site-footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  max-width: var(--content-width);
  margin: 0 auto;
}

.contact-info {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.contact-info span {
  color: var(--color-text-muted);
}

.contact-info a {
  color: var(--color-secondary);
  font-style: italic;
}

.footer-school {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-school img {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  object-fit: cover;
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-links a {
  color: var(--color-text-muted);
  transition:
    color var(--transition),
    transform var(--transition);
  display: inline-flex;
}

.social-links a:hover,
.social-links a:focus {
  color: var(--color-primary-light);
  transform: translateY(-2px);
}

/* ===== SCROLL-TO-TOP ===== */
#scroll-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--gradient-primary);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: var(--shadow-md);
  z-index: 1000;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
  text-decoration: none;
}

#scroll-to-top:hover {
  box-shadow: var(--shadow-glow-strong);
  transform: translateY(-2px);
}

#scroll-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ===== COMPONENTES REUTILIZABLES ===== */

/* Navegación interna de página */
.in-page-nav {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 1rem 1.5rem;
  margin-bottom: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.in-page-nav p {
  color: var(--color-primary-light);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  margin: 0;
}

.in-page-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.in-page-nav a {
  color: var(--color-text-muted);
  padding: 0.3rem 0.75rem;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.in-page-nav a:hover {
  background-color: rgba(123, 108, 246, 0.1);
  border-color: rgba(123, 108, 246, 0.2);
  color: var(--color-primary-light);
}

/* Tarjeta de actividad */
.activity-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem 2rem;
  margin-bottom: 2.5rem;
  transition:
    box-shadow var(--transition),
    border-color var(--transition);
}

.activity-card:hover {
  box-shadow: var(--shadow-glow);
  border-color: rgba(123, 108, 246, 0.2);
}

.activity-card h2 {
  color: var(--color-primary-light);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
}

.activity-card h3 {
  color: var(--color-secondary);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

/* Intro de sección */
.section-intro {
  font-size: 1.05rem;
  color: var(--color-text);
  margin-bottom: 2rem;
  line-height: 1.8;
}

/* Contenedor de tabla */
.table-container {
  width: 100%;
  overflow-x: auto;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-top: 1.5rem;
}

.table-container table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
}

.table-container th,
.table-container td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table-container th {
  font-family: var(--font-heading);
  color: var(--color-primary-light);
  font-size: 0.95rem;
  background-color: rgba(123, 108, 246, 0.08);
}

.table-container td {
  font-size: 0.95rem;
  color: var(--color-text);
}

.table-container tr:hover td {
  background-color: rgba(123, 108, 246, 0.04);
}

/* Botón de recurso */
.resource-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.resource-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
  color: #fff;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  h1 {
    font-size: 1.9rem;
  }
  h2 {
    font-size: 1.4rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: rgba(21, 24, 40, 0.98);
    backdrop-filter: blur(16px);
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 99;
    gap: 0.25rem;
  }

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

  .nav-links a {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
  }

  .nav-toggle {
    display: block;
  }

  .main-content {
    padding: 2rem 1rem;
  }

  .activity-card {
    padding: 1.5rem 1.25rem;
  }

  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .in-page-nav {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.6rem;
  }

  .header-content {
    padding: 0 1rem;
  }

  .main-content {
    padding: 1.5rem 0.75rem;
  }

  .activity-card {
    padding: 1.25rem 1rem;
    border-radius: var(--border-radius);
  }
}