/* ==========================================================================
   PRELOADER CURTAIN REVEAL — Portfolio Nadir Jara (nadirjara.tech)
   Reglas de Design System, Física del Telón + Barra de Progreso y Slot Typing
   ========================================================================== */

:root {
  --preloader-bg: #E5DED6; /* Cashmere Silk — fondo */
  --preloader-ink: #260705; /* Dark Truffle — texto del nombre */
  --preloader-curtain-1: #520E0D; /* Velvet Wine — panel principal */
  --preloader-curtain-2: #7F0F1D; /* Carmine Signature — panel secundario y acentos */
  --preloader-duration: 4.8s; /* Cambiado de 3.5s a 4.8s: recorrido más suave y pausado */
  --preloader-fade: 0.7s; /* Rango 0.6–0.8s */
}

/* Bloqueo estricto de scroll mientras el preloader esté activo */
html.preloader-active,
body.preloader-active {
  overflow: hidden !important;
  height: 100% !important;
}

/* Contenedor principal a pantalla completa (Capa 1: Fondo) */
#preloader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background-color: var(--preloader-bg);
  z-index: 99999;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: auto;
  will-change: opacity;
}

/* Capa 2: Contenedor de Texto y Barra */
.preloader__name-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  padding: 0 var(--space-4, 2rem);
  text-align: center;
  pointer-events: none;
}

.preloader__center-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.preloader__name {
  font-family: var(--font-display, 'EB Garamond', Georgia, serif);
  font-weight: 600;
  color: var(--preloader-ink);
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
  min-height: 1.2em; /* Reserva altura para que no salte el layout */
  transform: translateZ(0);
}

/* Barra de progreso inferior que avanza al ritmo del telón */
.preloader__progress-track {
  width: clamp(180px, 30vw, 320px);
  height: 3px;
  background-color: rgba(38, 7, 5, 0.12); /* Sutil Dark Truffle */
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.preloader__progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: var(--preloader-curtain-2); /* Carmine Signature */
  transform-origin: left center;
  transform: scaleX(0); /* Empieza en 0% y se llena en GSAP */
  will-change: transform;
}

/* Capa 3: Telón secundario Carmine Signature */
.preloader__curtain-secondary {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100%;
  background-color: var(--preloader-curtain-2);
  z-index: 20;
  will-change: transform;
  transform: translateZ(0);
}

/* Capa 4: Telón principal Velvet Wine */
.preloader__curtain-primary {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100%;
  background-color: var(--preloader-curtain-1);
  z-index: 30;
  box-shadow: -10px 0 35px rgba(38, 7, 5, 0.4);
  will-change: transform;
  transform: translateZ(0);
}

/* Capa 5: Avatar fijado físicamente al borde del telón primario */
.preloader__avatar-box {
  position: absolute;
  top: 50%;
  left: 0;
  /* -80% alinea exactamente las manos del sprite con la línea divisoria x=0 del telón */
  transform: translate(-80%, -50%);
  width: clamp(80px, 14vw, 140px);
  height: clamp(80px, 14vw, 140px);
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  will-change: transform;
}

.preloader__avatar {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  filter: drop-shadow(-2px 3px 8px rgba(38, 7, 5, 0.22));
  display: block;
}

/* Accesibilidad */
@media (prefers-reduced-motion: reduce) {
  #preloader {
    display: none !important;
  }
  html.preloader-active,
  body.preloader-active {
    overflow: visible !important;
    height: auto !important;
  }
}