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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-color);
  background-image:
    radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.05) 0px, transparent 50%);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── Scrollbar Personalizada ──────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: var(--surface-accent);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* ─── Pantalla de Carga Inicial (v4.10.1 Premium UX) ───────────────────────── */
.loading-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 2rem;
  color: var(--text-main);
  animation: fadeIn 0.8s ease-out;
  text-align: center;
}

.loader-logo {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 15px var(--primary-glow));
  animation: float 3s ease-in-out infinite;
}

.progress-container {
  width: 100%;
  max-width: 280px;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  overflow: hidden;
  margin: 1.5rem 0;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  box-shadow: 0 0 15px var(--primary-glow);
  border-radius: 10px;
  transition: width 0.4s ease-out;
}

.loading-text {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.spinner {
  width: 56px;
  height: 56px;
  border: 3px solid transparent;
  border-top-color: var(--primary-color);
  border-right-color: var(--secondary-color);
  border-radius: 50%;
  position: relative;
  animation: spin 1s cubic-bezier(0.55, 0.15, 0.45, 0.85) infinite;
  margin-bottom: 2rem;
}

.spinner::before {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border: 1px solid var(--primary-glow);
  border-radius: 50%;
  animation: pulse-glow 2s infinite ease-in-out;
}

/* ─── Responsive Spinners ─────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .spinner {
    width: 42px;
    height: 42px;
  }
}