/* loader.css — Ultra minimal y sólido (PC + móvil)
   - Fondo opaco (sin transparencia)
   - Tipografía clara y título “STORAGE” mejorado
   - Barra de progreso limpia con shimmer suave
   - Marcadores de etapas mínimos (3 puntos)
   - Compatible con tu HTML/JS actuales
*/

/* ===== PALETA ===== */
:root {
  --accent1: #1f6feb; /* azul */
  --accent2: #8b5cf6; /* púrpura */
  --accent3: #10b981; /* esmeralda */

  --bg-1: #0b0f1a; /* fondo sólido oscuro */
  --bg-2: #0e1424;
  --bg-3: #111827;

  --surface: #0f1422; /* tarjeta sólida */
  --stroke: rgba(255, 255, 255, 0.08);

  --text-1: #f8fafc;
  --text-2: #a3aab7;

  --radius: 14px;
  --shadow-xl: 0 28px 70px rgba(0, 0, 0, 0.5);
}

/* ===== OVERLAY SÓLIDO ===== */
#loader-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 16px;
  background: linear-gradient(135deg, var(--bg-1) 0%, var(--bg-2) 55%, var(--bg-3) 100%);
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

#loader-overlay.finish {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

/* ===== TARJETA ===== */
#loader-overlay .loader-wrap {
  width: min(520px, 92vw);
  min-height: 200px;
  padding: 18px 18px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow-xl);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
  overflow: hidden;
  isolation: isolate;
}

/* ===== TÍTULO “STORAGE” ===== */
#loader-overlay .brand {
  text-align: center;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-weight: 900;
  letter-spacing: 0.4rem;
  font-size: clamp(1rem, 2.6vw, 1.15rem);
  text-transform: uppercase;
  color: transparent;
  background: linear-gradient(90deg, var(--accent1), var(--accent2), var(--accent3));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  user-select: none;
}

/* Subrayado sutil bajo el título */
#loader-overlay .brand::after {
  content: '';
  display: block;
  margin: 10px auto 0;
  width: 72px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent2), var(--accent1));
  opacity: 0.65;
}

/* ===== PROGRESO ===== */
#loader-overlay .progress {
  display: grid;
  gap: 14px;
}

/* Track con espacio para puntos (etapas) */
#loader-overlay .progress-track {
  position: relative;
  padding: 26px 6px 10px;
}

/* Puntos mínimos de etapa (sin íconos) */
#loader-overlay .dot {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid var(--stroke);
  transition: 0.25s ease;
}
#loader-overlay .dot svg {
  display: none;
}
#loader-overlay .dot.source {
  left: 0%;
}
#loader-overlay .dot.mid {
  left: 50%;
}
#loader-overlay .dot.dest {
  left: 100%;
}
#loader-overlay .dot.active {
  background: linear-gradient(135deg, var(--accent2), var(--accent1));
  border-color: transparent;
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.16);
}

/* Barra */
#loader-overlay .bar {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--stroke);
  overflow: hidden;
}

/* Relleno con shimmer suave */
#loader-overlay .bar .fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent1), var(--accent2), var(--accent3));
  background-size: 200% 100%;
  animation: fillShimmer 1.5s linear infinite;
  transition: width 0.22s linear;
}

@keyframes fillShimmer {
  from {
    background-position: 0% 0;
  }
  to {
    background-position: 200% 0;
  }
}

/* Highlight superior muy sutil */
#loader-overlay .bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.14),
    rgba(255, 255, 255, 0.04) 60%,
    transparent
  );
  pointer-events: none;
}

/* Ocultar “packets” heredados del loader anterior */
#loader-overlay .packet {
  display: none !important;
}

/* Info de progreso (números tabulares para % estable) */
#loader-overlay .progress-info {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  color: var(--text-2);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  user-select: none;
}
#loader-overlay #loader-status {
  color: var(--text-1);
}
#loader-overlay #loader-percent {
  min-width: 56px;
  text-align: right;
  color: var(--text-1);
}

/* ===== ACCESIBILIDAD ===== */
#loader-overlay .loader-wrap:focus-within {
  outline: none;
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.24), var(--shadow-xl);
}

/* ===== MÓVIL ===== */
@media (max-width: 560px) {
  #loader-overlay {
    padding: 12px;
  }
  #loader-overlay .loader-wrap {
    width: 94vw;
    min-height: 180px;
    padding: 14px;
    border-radius: 12px;
  }
  #loader-overlay .brand {
    letter-spacing: 0.32rem;
    font-size: 1rem;
  }
  #loader-overlay .progress-track {
    padding: 20px 4px 8px;
  }
  #loader-overlay .dot {
    width: 7px;
    height: 7px;
  }
  #loader-overlay .bar {
    height: 8px;
  }
}

/* ===== REDUCIR MOVIMIENTO ===== */
@media (prefers-reduced-motion: reduce) {
  #loader-overlay,
  #loader-overlay .loader-wrap,
  #loader-overlay .bar .fill {
    animation: none !important;
    transition: none !important;
  }
}