/* ==========================================
   VARIABLES (Tema Banda de Colegio · Verde institucional + dorado)
   ========================================== */
:root {
  --verde-oscuro: #1a6b3c;
  --verde-profundo: #06210f;
  --verde-suave: #142016;
  --dorado: #d4af37;
  --dorado-claro: #f0d888;
  --dorado-oscuro: #c9a227;
  --crema: #e9e6db;
  --fondo-tarjeta: #14150f;
  --fondo-tarjeta-alt: #1b1c14;
  --texto-principal: #e9e6db;
  --texto-secundario: #a3a397;
  --verde-wa: #25D366;
  --verde-wa-oscuro: #1ebe5a;
  --sombra: 0 25px 60px rgba(0, 0, 0, 0.55);
  --transicion: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Cormorant Garamond', Georgia, serif;
  background:
    radial-gradient(circle at 15% 10%, rgba(212, 175, 55, 0.09), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(26, 107, 60, 0.18), transparent 45%),
    radial-gradient(circle at top, #1a1b14 0%, #08090a 100%);
  color: var(--texto-principal);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 50px 16px;
  position: relative;
  overflow-x: hidden;
}

/* ESTRELLAS DECORATIVAS */
.estrellas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.estrella {
  position: absolute;
  color: var(--dorado);
  opacity: 0.5;
  animation: parpadeo 3.5s ease-in-out infinite;
}

.e1 { top: 8%;  left: 10%; font-size: 1.1rem; animation-delay: 0s; }
.e2 { top: 18%; left: 85%; font-size: 0.8rem; animation-delay: 0.6s; }
.e3 { top: 40%; left: 5%;  font-size: 0.7rem; animation-delay: 1.2s; }
.e4 { top: 65%; left: 92%; font-size: 1rem;   animation-delay: 1.8s; }
.e5 { top: 80%; left: 12%; font-size: 0.9rem; animation-delay: 2.2s; }
.e6 { top: 90%; left: 78%; font-size: 0.7rem; animation-delay: 0.3s; }
.e7 { top: 30%; left: 92%; font-size: 0.6rem; animation-delay: 1.5s; }
.e8 { top: 55%; left: 3%;  font-size: 1rem;   animation-delay: 2.6s; }

@keyframes parpadeo {
  0%, 100% { opacity: 0.2; transform: scale(0.9); }
  50%      { opacity: 0.75; transform: scale(1.15); }
}

.tarjeta {
  width: 100%;
  max-width: 560px;
  background-color: var(--fondo-tarjeta);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--sombra);
  border: 1px solid rgba(212, 175, 55, 0.35);
  position: relative;
  z-index: 1;
}

/* ==========================================
   HEADER — inspirado en charreteras / uniforme de banda
   ========================================== */
#cabeza {
  background: linear-gradient(180deg, var(--verde-profundo) 0%, var(--verde-oscuro) 100%);
  color: var(--crema);
  text-align: center;
  padding: 26px 30px 36px;
  position: relative;
  border-bottom: 5px solid var(--dorado);
}

/* Franjas doradas tipo charretera en los bordes superiores */
#cabeza::before,
#cabeza::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 10px;
  background: repeating-linear-gradient(
    45deg,
    var(--dorado) 0, var(--dorado) 4px,
    transparent 4px, transparent 9px
  );
  opacity: 0.6;
}
#cabeza::before { left: 0; }
#cabeza::after  { right: 0; }

.institucion {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--dorado-claro);
  margin-bottom: 6px;
}

#cabeza h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: 3px;
  color: var(--crema);
  text-transform: uppercase;
  margin-bottom: 18px;
}

#cabeza h1 span {
  color: var(--dorado-claro);
}

.disco-vinilo {
  width: 158px;
  height: 158px;
  margin: 0 auto 16px;
  position: relative;
  border-radius: 50%;
  background: conic-gradient(from 180deg, var(--dorado), var(--dorado-claro), var(--dorado));
  padding: 5px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}

.vinilo-anillo {
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 3px var(--verde-profundo);
}

.foto-estudiante {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--verde-profundo);
  position: relative;
  z-index: 2;
  display: block;
}

.nombre {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--crema);
  margin-bottom: 6px;
}

.subtitulo {
  font-size: 0.9rem;
  color: var(--dorado-claro);
  letter-spacing: 1px;
  opacity: 0.9;
}

/* Ecualizador decorativo — tono musical */
.ecualizador {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
  height: 22px;
  margin-top: 16px;
}

.ecualizador span {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--dorado-claro), var(--dorado-oscuro));
  animation: rebote 1.1s ease-in-out infinite;
}

.ecualizador span:nth-child(1) { height: 40%; animation-delay: 0s; }
.ecualizador span:nth-child(2) { height: 100%; animation-delay: 0.15s; }
.ecualizador span:nth-child(3) { height: 65%; animation-delay: 0.3s; }
.ecualizador span:nth-child(4) { height: 90%; animation-delay: 0.45s; }
.ecualizador span:nth-child(5) { height: 50%; animation-delay: 0.6s; }

@keyframes rebote {
  0%, 100% { transform: scaleY(0.4); opacity: 0.7; }
  50%      { transform: scaleY(1); opacity: 1; }
}

/* ==========================================
   GALERÍA DE FOTOS DE LA BANDA
   ========================================== */
.galeria-banda {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  background-color: #000;
  padding: 4px;
}

.galeria-banda img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  display: block;
  border-radius: 2px;
  filter: saturate(1.05) contrast(1.05) brightness(0.95);
  transition: var(--transicion);
}

.galeria-banda img:hover {
  transform: scale(1.03);
  filter: saturate(1.2) contrast(1.05);
}

/* ==========================================
   MAIN
   ========================================== */
main {
  background-color: var(--fondo-tarjeta);
  padding: 38px 32px 10px;
}

.cuerpo {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}

.cuerpo .dato {
  background-color: var(--fondo-tarjeta-alt);
  border: 1px dashed rgba(212, 175, 55, 0.35);
  border-radius: 8px;
  padding: 18px 8px;
  text-align: center;
  transition: var(--transicion);
}

.cuerpo .dato:hover {
  border-color: var(--dorado);
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(212, 175, 55, 0.22);
}

.cuerpo .icono {
  width: 22px;
  height: 22px;
  margin: 0 auto 8px;
  display: block;
  filter: invert(78%) sepia(45%) saturate(500%) hue-rotate(2deg) brightness(95%) contrast(92%);
}

.cuerpo h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--texto-secundario);
  margin-bottom: 4px;
  font-weight: 400;
}

.cuerpo p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dorado-claro);
}

/* SEPARADOR */
.separador {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 25px 0;
}

.separador .linea {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(165, 132, 42, 0.5), transparent);
}

.icono-separador {
  width: 20px;
  height: 20px;
  filter: invert(78%) sepia(45%) saturate(500%) hue-rotate(2deg) brightness(95%) contrast(92%);
  flex-shrink: 0;
}

.estrella-footer {
  color: var(--dorado);
  font-size: 1rem;
}

/* INVITACIÓN */
.invitacion {
  text-align: center;
}

.invitacion h3,
.confirmacion h3 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--dorado-oscuro);
  margin-bottom: 15px;
  font-weight: 400;
}

.icono-inline {
  width: 20px;
  height: 20px;
  filter: invert(78%) sepia(45%) saturate(500%) hue-rotate(2deg) brightness(95%) contrast(92%);
}

.invitacion .lema {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--dorado-claro);
  margin-bottom: 18px;
  padding: 0 8px;
  border-left: 2px solid var(--dorado);
  border-right: 2px solid var(--dorado);
}

.invitacion p {
  color: var(--texto-principal);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 15px;
}

.invitacion p strong {
  color: var(--dorado-claro);
}

.invitacion .padres {
  margin-top: 20px;
  font-size: 0.98rem;
  color: var(--texto-secundario);
  padding-top: 15px;
  border-top: 1px dashed rgba(212, 175, 55, 0.3);
}

/* CONFIRMACIÓN / WHATSAPP */
.confirmacion {
  text-align: center;
  margin-top: 15px;
  padding: 28px 20px;
  background-color: var(--fondo-tarjeta-alt);
  border-radius: 12px;
  border: 1px dashed rgba(212, 175, 55, 0.35);
}

.confirmacion p {
  font-size: 0.95rem;
  color: var(--texto-secundario);
  margin-bottom: 20px;
}

.boton-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--verde-wa);
  color: #fff;
  text-decoration: none;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  letter-spacing: 1px;
  padding: 14px 28px;
  border-radius: 50px;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.35);
  transition: var(--transicion);
}

.boton-whatsapp:hover {
  background-color: var(--verde-wa-oscuro);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(37, 211, 102, 0.45);
}

.icono-wa {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
  background-color: #08090a;
  color: var(--crema);
  text-align: center;
  padding: 30px 25px 25px;
  margin-top: 35px;
}

footer .separador {
  margin-top: 0;
}

.mensaje-final {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.02rem;
  color: var(--crema);
  margin-bottom: 14px;
  padding: 0 10px;
}

.firma {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--dorado-claro);
  margin-bottom: 25px;
}

.dev-credit p {
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.68rem;
  color: #7c8a80;
  margin-bottom: 10px;
}

.dev-credit img {
  max-width: 65px;
  height: auto;
  opacity: 0.65;
  transition: var(--transicion);
}

.dev-credit img:hover {
  opacity: 1;
}

/* ==========================================
   ADAPTATIVO (Móviles)
   ========================================== */
@media (max-width: 500px) {
  body {
    padding: 20px 10px;
  }

  main {
    padding: 30px 20px 10px;
  }

  .cuerpo {
    grid-template-columns: 1fr;
  }

  .galeria-banda {
    grid-template-columns: repeat(3, 1fr);
  }

  .galeria-banda img {
    height: 90px;
  }

  #cabeza h1 {
    font-size: 1.9rem;
  }

  .nombre {
    font-size: 1.25rem;
  }

  .boton-whatsapp {
    width: 100%;
    justify-content: center;
  }
}