/* Animación IDS - SECTION */ 

html {
    scroll-behavior: smooth;
}

section {
    scroll-margin-top: 100px;
    padding: 60px 25px;
    border-radius: 20px;
}

section:target {
    animation: sectionReveal 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}


@keyframes sectionReveal {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
        filter: blur(10px);
    }

    60% {
        opacity: 1;
        filter: blur(0);
    }

    100% {
        transform: translateY(0) scale(1);
    }
}

/* =================== BODY Y FONDOS =================== */
body {
  margin: 0;
  min-height: 100vh;
  background-color: #24305f;
  overflow-x: hidden;
  font-family: 'Segoe UI', sans-serif;
  scroll-behavior: smooth;
}

/* Líneas animadas */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(90, 200, 160, 0.06),
      rgba(90, 200, 160, 0.06) 1px,
      transparent 1px,
      transparent 90px
    ),
    repeating-linear-gradient(
      180deg,
      rgba(60, 100, 180, 0.1),
      rgba(60, 100, 180, 0.1) 1px,
      transparent 1px,
      transparent 70px
    );
  animation: moveLines 25s linear infinite;
}

@keyframes moveLines {
  from { background-position: 0 0, 0 0; }
  to { background-position: 900px 0, 0 900px; }
}

/* Navbar */
.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 12px 40px;
  border-bottom: 2px solid rgba(155, 188, 255, 0.35);
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  box-sizing: border-box;
  background: radial-gradient(circle at center, #0f0f0f 0%, #1a1a1a 100%);
  overflow: hidden;
}

.nav::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 200%;
  height: 200%;
  background: repeating-radial-gradient(
      circle,
      rgba(0,150,255,0.2) 0px,
      rgba(0,150,255,0.2) 2px,
      transparent 2px,
      transparent 6px
  );
  animation: waves 10s linear infinite;
  transform: translate(-25%, -25%);
  z-index: -1;
}

@keyframes waves {
  from { transform: translate(-25%, -25%) rotate(0deg); }
  to   { transform: translate(-25%, -25%) rotate(360deg); }
}

.nav img {
  height: 70px;
  margin-right: auto;
}

.nav-item { display: flex; }

.nav-links {
    display: flex;
    gap: 15px;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Estilo de cada botón */
.nav-links li a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 12px;
    background: linear-gradient(145deg, #1e90ff, #00bfff);
    color: white;
    font-weight: bold;
    text-decoration: none;
    font-size: 16px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

/* Hover de los botones */
.nav-links li a:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0,0,0,0.5);
    background: linear-gradient(145deg, #00bfff, #1e90ff);
    color: #ffffff;
}

/* =================== SECCIÓN DE BIENVENIDA =================== */
.home {
    display: flex;
    justify-content: center;       /* centra horizontalmente */
    align-items: center;           /* centra verticalmente */
    min-height: 80vh;              /* ocupa casi toda la pantalla */
    padding-top: 100px;            /* espacio por navbar fijo */
}

.welcome-box {
    background: rgba(0, 0, 0, 0.6);     /* fondo semi-transparente */
    padding: 50px 40px;                 /* espacio interno */
    border-radius: 20px;                /* bordes redondeados */
    box-shadow: 0 8px 30px rgba(0,0,0,0.7); /* sombra profunda */
    text-align: center;                 /* centra el texto */
    transition: transform 0.3s, background 0.3s;
    max-width: 800px;                   /* ancho máximo */
}

/* Hover del cuadro de bienvenida */
.welcome-box:hover {
    transform: translateY(-5px);
    background: rgba(0, 0, 0, 0.75);
}

/* Título principal */
.welcome-box h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: #ffffff;
    text-shadow: 2px 2px 6px rgba(0,0,0,0.7); /* sombra para resaltar */
}

/* Texto descriptivo */
.welcome-box p {
    font-size: 1.3rem;
    color: #ddd;
    line-height: 1.6;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
}

/* =================== RESPONSIVE =================== */
@media (max-width: 768px) {
    .welcome-box {
        padding: 40px 25px;
    }
    .welcome-box h1 {
        font-size: 2.2rem;
    }
    .welcome-box p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .welcome-box {
        padding: 30px 15px;
    }
    .welcome-box h1 {
        font-size: 1.8rem;
    }
    .welcome-box p {
        font-size: 0.95rem;
    }
}

/* =================== SECCIÓN DE VIDEOS =================== */

/* =================== TÍTULO SECUNDARIO (h2) =================== */
h2 {
    font-size: 2.2rem;
    margin-bottom: 25px;
    font-weight: 800;
    text-align: center;
    background: blue;
    border-radius: 16px;

    /* Texto blanco */
    color: #ffffff;

    /* Sombra múltiple para crear borde azul oscuro */
    text-shadow:
        2px 2px 0 #001f4d,   /* azul oscuro borde inferior-derecha */
       -2px -2px 0 #001f4d,  /* azul oscuro borde superior-izquierda */
        2px -2px 0 #001f4d,
       -2px 2px 0 #001f4d,
        0 0 6px rgba(0,0,255,0.5); /* glow azul suave */
    
    /* Animación glow sutil */
    animation: glowH2 2.5s ease-in-out infinite alternate;
}

/* Animación glow para el h2 */
@keyframes glowH2 {
    from {
        text-shadow:
            2px 2px 0 #001f4d,
           -2px -2px 0 #001f4d,
            2px -2px 0 #001f4d,
           -2px 2px 0 #001f4d,
            0 0 6px rgba(0,0,255,0.5);
    }
    to {
        text-shadow:
            2px 2px 0 #001f4d,
           -2px -2px 0 #001f4d,
            2px -2px 0 #001f4d,
           -2px 2px 0 #001f4d,
            0 0 14px rgba(0,0,255,0.7);
    }
}

/* =================== RESPONSIVE =================== */
@media (max-width: 768px) {
    h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    h2 {
        font-size: 1.5rem;
    }
}

.video-container {
  width: 100%;
  max-width: 1200px;
  margin: 120px auto 40px auto; /* margen superior para navbar */
  padding: 20px 10px;
  box-sizing: border-box;
  margin-top: -120px;
}

.video-container h1 {
  text-align: center;
  margin-bottom: 30px;
  font-family: Arial, sans-serif;
  color: white;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

/* Fila horizontal de videos */
.video-grid {
  display: flex;
  gap: 30px;
  overflow-x: auto;
  padding: 20px;
  scroll-behavior: smooth;
  background: rgba(0,0,0,0.2);
  border-radius: 20px;
}

/* Scroll personalizado */
.video-grid::-webkit-scrollbar {
  height: 10px;
}
.video-grid::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.3);
  border-radius: 10px;
}
.video-grid::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.5);
}
.video-grid::-webkit-scrollbar-track { background: transparent; }

/* Cada video */
.video-item {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.video-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

/* Texto debajo de cada video */
.video-item p {
  margin-top: 10px;
  font-weight: bold;
  font-size: 16px;
  font-family: Arial, sans-serif;
  color: white;
  text-align: center;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

/* Estilos del iframe */
.video-youtube {
  width: 100%;
  max-width: 560px;
  height: 315px;
  border-radius: 15px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
  transition: transform 0.3s, box-shadow 0.3s;
}

.video-youtube:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 30px rgba(0,0,0,0.5);
}

/* =================== RESPONSIVE =================== */
@media (max-width: 768px) {
  .video-youtube { height: 250px; }
  .video-item p { font-size: 14px; }
}

@media (max-width: 480px) {
  .video-youtube { height: 200px; }
  .video-item p { font-size: 13px; }
  .video-grid { gap: 20px; padding: 15px; }
}

/* CONTENEDOR PRINCIPAL */
.conceptos-html {
    max-width: 1100px;
    margin: 120px auto 60px auto;
    padding: 40px;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 20px;
    box-shadow: 0 0 40px rgba(0, 100, 255, 0.15);
}

/* TÍTULO PRINCIPAL */
.conceptos-html h2 {
    text-align: center;
    font-size: 34px;
    color: #ffffff;
    margin-bottom: 50px;
    text-shadow:
        -2px -2px 0 #0a2a66,
         2px -2px 0 #0a2a66,
        -2px  2px 0 #0a2a66,
         2px  2px 0 #0a2a66;
}

/* TARJETAS DE CONCEPTO */
.concepto {
    margin-bottom: 40px;
    padding: 25px 30px;
    border-left: 4px solid #1e90ff;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* EFECTO HOVER */
.concepto:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 30px rgba(30, 144, 255, 0.25);
}

/* SUBTÍTULOS */
.concepto h3 {
    color: #4da6ff;
    font-size: 22px;
    margin-bottom: 15px;
}

/* TEXTO */
.concepto p {
    color: #e0e0e0;
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 12px;
}

/* CONTENEDOR PRINCIPAL */
.herramientas {
    max-width: 1100px;
    margin: 100px auto;
    padding: 40px;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 22px;
    box-shadow: 0 0 45px rgba(0, 120, 255, 0.2);
}

/* TÍTULO */
.herramientas h2 {
    text-align: center;
    font-size: 34px;
    color: #ffffff;
    margin-bottom: 50px;
    text-shadow:
        -2px -2px 0 #0a2a66,
         2px -2px 0 #0a2a66,
        -2px  2px 0 #0a2a66,
         2px  2px 0 #0a2a66;
}

/* TARJETA DE HERRAMIENTA */
.herramienta {
    padding: 28px 32px;
    margin-bottom: 35px;
    background: rgba(255, 255, 255, 0.04);
    border-left: 5px solid #1e90ff;
    border-radius: 14px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* EFECTO HOVER */
.herramienta:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(30, 144, 255, 0.3);
}

/* SUBTÍTULOS */
.herramienta h3 {
    color: #4da6ff;
    font-size: 22px;
    margin-bottom: 14px;
}

/* TEXTO */
.herramienta p {
    color: #e0e0e0;
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 12px;
}

/* CONTENEDOR PRINCIPAL */
.buenas-practicas {
    max-width: 1100px;
    margin: 120px auto;
    padding: 45px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 22px;
    box-shadow: 0 0 45px rgba(0, 120, 255, 0.25);
}

/* TÍTULO */
.buenas-practicas h2 {
    text-align: center;
    font-size: 34px;
    color: #ffffff;
    margin-bottom: 50px;
    text-shadow:
        -2px -2px 0 #0a2a66,
         2px -2px 0 #0a2a66,
        -2px  2px 0 #0a2a66,
         2px  2px 0 #0a2a66;
}

/* TARJETAS */
.practica {
    padding: 28px 32px;
    margin-bottom: 35px;
    background: rgba(255, 255, 255, 0.05);
    border-left: 5px solid #1e90ff;
    border-radius: 14px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* HOVER */
.practica:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(30, 144, 255, 0.3);
}

/* SUBTÍTULOS */
.practica h3 {
    color: #4da6ff;
    font-size: 22px;
    margin-bottom: 14px;
}

/* TEXTO */
.practica p {
    color: #e0e0e0;
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 12px;
}

/* CONTENEDOR PRINCIPAL */
.lenguajes {
    max-width: 1100px;
    margin: 120px auto;
    padding: 45px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 22px;
    box-shadow: 0 0 45px rgba(0, 120, 255, 0.25);
}

/* TÍTULO */
.lenguajes h2 {
    text-align: center;
    font-size: 34px;
    color: #ffffff;
    margin-bottom: 50px;
    text-shadow:
        -2px -2px 0 #0a2a66,
         2px -2px 0 #0a2a66,
        -2px  2px 0 #0a2a66,
         2px  2px 0 #0a2a66;
}

/* TARJETA DE LENGUAJE */
.lenguaje {
    padding: 28px 32px;
    margin-bottom: 35px;
    background: rgba(255, 255, 255, 0.05);
    border-left: 5px solid #1e90ff;
    border-radius: 14px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* HOVER */
.lenguaje:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(30, 144, 255, 0.3);
}

/* SUBTÍTULOS */
.lenguaje h3 {
    color: #4da6ff;
    font-size: 24px;
    margin-bottom: 14px;
}

/* TEXTO */
.lenguaje p {
    color: #e0e0e0;
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 12px;
}

/* RUTAS DE APRENDIZAJE */
.rutas-aprendizaje {
    padding: 80px 10%;
    background: linear-gradient(180deg, #0b1220, #020617);
    color: #e5e7eb;
}

.rutas-aprendizaje h2 {
    text-align: center;
    font-size: 38px;
    color: #ffffff;
    margin-bottom: 50px;
    text-shadow: 0 0 10px #1e3a8a;
}

.ruta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.ruta {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 14px;
    padding: 25px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ruta:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.4);
}

.ruta h3 {
    color: #93c5fd;
    margin-bottom: 15px;
    font-size: 22px;
}

.ruta p {
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 15px;
    color: #cbd5f5;
}

.ruta ul {
    padding-left: 18px;
}

.ruta ul li {
    font-size: 14px;
    margin-bottom: 8px;
    color: #e0e7ff;
}

/* FOOTER */
.footer {
    background: linear-gradient(180deg, #020617, #020617);
    color: #cbd5f5;
    padding: 60px 10% 20px;
    border-top: 2px solid rgba(59, 130, 246, 0.3);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 22px;
    text-shadow: 0 0 8px #1e3a8a;
}

.footer-section h4 {
    color: #93c5fd;
    margin-bottom: 15px;
    font-size: 18px;
}

.footer-section p {
    font-size: 14px;
    line-height: 1.7;
    color: #c7d2fe;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-section ul li a {
    color: #cbd5f5;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #60a5fa;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(59, 130, 246, 0.2);
    font-size: 13px;
    color: #94a3b8;
}