/* =========================
   RESET
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

/* =========================
   VARIABLES GLOBALES
========================= */
:root {
  --negro: #0b0b0b;
  --negro-suave: #111111;
  --blanco: #f2f2f2;
  --ocre: #b07d2b;
  --azul: #28436a;
  --transicion: 0.3s ease;
}

/* =========================
   BASE
========================= */
body {
  background: var(--negro);
  color: var(--blanco);
  font-family:
    system-ui,
    -apple-system,
    sans-serif;
  line-height: 1.6;
}

/* =========================
   NAVBAR
   Sin overflow:hidden para
   que el menú móvil se pueda
   desplegar correctamente.
========================= */
.navbar {
  height: 65px;
  padding-top: 0;
  padding-bottom: 0;
  backdrop-filter: blur(10px);
  background-color: rgba(11, 11, 11, 0.95) !important;
  border-bottom: 1px solid rgba(176, 125, 43, 0.15);
}

.navbar-brand {
  padding-top: 0;
  padding-bottom: 0;
  color: var(--blanco) !important;
}

.navbar-brand img {
  height: 75px;
  width: auto;
}

.nav-link {
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blanco) !important;
  transition: color var(--transicion);
  position: relative;
  text-shadow: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--ocre) !important;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--ocre);
  transition: width var(--transicion);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

/* =========================
   MENÚ MÓVIL
========================= */
@media (max-width: 991px) {
  .navbar-collapse {
    display: none;
    width: 100%;
    background-color: rgba(11, 11, 11, 0.98);
    padding: 1rem;
  }
  .navbar-collapse.show {
    display: block;
  }
}

/* =========================
   CONTENIDO GENERAL
========================= */
.content {
  background: var(--negro-suave);
  min-height: 100vh;
  padding-bottom: 1rem;
  padding-top: 56px;
}

/* =========================
   CARDS PRINCIPALES (index)
========================= */
.module-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.module-card {
  position: relative;
  height: 70vh;
  min-height: 480px;
  margin: 0;
  overflow: hidden;
  border-radius: 12px;
  background-color: var(--negro);
  cursor: pointer;
}

.module-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 1;
  transition:
    transform 0.6s ease,
    opacity 0.6s ease;
}

.module-card:hover img {
  transform: scale(1.2);
  opacity: 0.85;
}

.module-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.15));
}

.module-overlay h2 {
  margin: 0;
  font-size: 2.4rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.module-overlay p {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  opacity: 0.65;
}

.module-meta {
  margin-top: 0.8rem;
  font-size: 0.8rem;
  opacity: 0.5;
  letter-spacing: 0.05em;
}

/* IDENTIDAD POR DISCIPLINA */
.musica {
  border-bottom: 4px solid var(--azul);
}
.musica h2 {
  color: var(--azul);
}

.poesia {
  border-bottom: 4px solid var(--ocre);
}
.poesia h2 {
  color: var(--ocre);
}

/* =========================
   BOTÓN VOLVER
========================= */
.back-btn {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--blanco);
  opacity: 0.5;
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  transition: opacity var(--transicion);
}

.back-btn:hover {
  opacity: 1;
  color: var(--ocre);
}

/* =========================
   FOOTER
========================= */
.footer {
  border-top: 1px solid rgba(176, 125, 43, 0.15);
}

.footer h6 {
  color: var(--ocre);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  margin-bottom: 0.8rem;
}

.footer a {
  font-size: 0.9rem;
  transition: color var(--transicion);
}

.footer a:hover {
  color: var(--ocre) !important;
}

.btn-outline-light:hover {
  background-color: var(--ocre);
  border-color: var(--ocre);
  color: var(--negro);
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 768px) {
  .module-card {
    height: 55vh;
    min-height: 380px;
  }

  .module-overlay h2 {
    font-size: 1.8rem;
  }

  .module-overlay {
    padding: 1.5rem;
  }
}

@media (max-width: 576px) {
  .module-card {
    height: 48vh;
    min-height: 320px;
  }

  .module-overlay h2 {
    font-size: 1.5rem;
  }
}