/* ==============================================================================
   SELOASA - Animación de Entrada 3D Isométrica (Camión Avanzando en Autopista)
   Fondo Blanco Puro (#ffffff), Carretera en Movimiento Continuo, Solo Logo Oficial
   ============================================================================== */

body.seloasa-intro-active {
    overflow: hidden !important;
    height: 100vh !important;
}

body.seloasa-intro-active > *:not(#seloasa-intro-splash) {
    visibility: hidden !important;
    pointer-events: none !important;
}

/* Telón / Overlay principal: Fondo Blanco Puro */
#seloasa-intro-splash {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    opacity: 0;
    visibility: hidden;
    transition: opacity 380ms cubic-bezier(0.16, 1, 0.3, 1), visibility 380ms cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    -webkit-user-select: none;
    cursor: pointer;
    overflow: hidden;
    padding: 20px;
}

#seloasa-intro-splash.is-visible {
    opacity: 1;
    visibility: visible;
}

#seloasa-intro-splash.is-leaving {
    opacity: 0;
    transform: scale(1.02);
    pointer-events: none;
    transition: opacity 350ms cubic-bezier(0.4, 0, 0.2, 1), transform 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

.seloasa-splash-container {
    position: relative;
    width: 100%;
    max-width: 640px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* ==================== ESCENA ISOMÉTRICA DE CARRETERA ==================== */
.seloasa-iso-scene {
    position: relative;
    width: 100%;
    height: clamp(240px, 48vw, 360px);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Contenedor del camión: Entrada, rodamiento activo en carretera y aceleración de salida */
.seloasa-truck-wrapper {
    position: relative;
    width: 100%;
    max-width: 580px;
    z-index: 2;
    animation: seloasaIsoDriveIn 0.85s cubic-bezier(0.16, 1, 0.3, 1) forwards, seloasaHighwayDrive 0.32s ease-in-out infinite;
}

#seloasa-intro-splash.truck-accelerating .seloasa-truck-wrapper {
    animation: seloasaIsoDriveOut 0.55s cubic-bezier(0.55, 0.05, 0.67, 0.19) forwards;
}

.seloasa-iso-svg {
    width: 100%;
    height: auto;
    display: block;
    overflow: visible;
    filter: drop-shadow(0 14px 28px rgba(15, 23, 42, 0.09));
}

/* ==================== AVANCE CONTINUO EN AUTOPISTA ==================== */
/* Franja central divisoria en Rojo Seloasa que corre continuamente bajo el camión */
.seloasa-highway-stream.center-line {
    animation: seloasaCenterLineStream 0.32s linear infinite;
}

/* Líneas laterales de acotamiento */
.seloasa-highway-stream.shoulder-left,
.seloasa-highway-stream.shoulder-right {
    animation: seloasaShoulderStream 0.32s linear infinite;
}

#seloasa-intro-splash.truck-accelerating .seloasa-highway-stream.center-line {
    animation: seloasaCenterLineStream 0.16s linear infinite;
}

#seloasa-intro-splash.truck-accelerating .seloasa-highway-stream.shoulder-left,
#seloasa-intro-splash.truck-accelerating .seloasa-highway-stream.shoulder-right {
    animation: seloasaShoulderStream 0.16s linear infinite;
}

/* Estelas aerodinámicas traseras de viento (Slipstream / Rebufo Azul Celeste) */
.seloasa-wind-line {
    animation: seloasaSlipstream 0.42s ease-out infinite;
    filter: drop-shadow(0 0 3px rgba(56, 189, 248, 0.45));
}

.seloasa-wind-line.wind-1 {
    animation-delay: 0s;
}

.seloasa-wind-line.wind-2 {
    animation-delay: 0.1s;
}

.seloasa-wind-line.wind-4 {
    animation-delay: 0.18s;
}

.seloasa-wind-line.wind-3 {
    animation-delay: 0.26s;
}

.seloasa-wind-line.wind-5 {
    animation-delay: 0.14s;
}

/* ==================== RUEDAS Y MECÁNICA ISOMÉTRICA ==================== */
/* Rotación continua y fluida de las ruedas isométricas al ritmo de la carretera */
.seloasa-iso-wheel-spin {
    transform-box: fill-box;
    transform-origin: center;
    animation: seloasaWheelSpin 0.32s linear infinite;
}

#seloasa-intro-splash.truck-accelerating .seloasa-iso-wheel-spin {
    transform-box: fill-box;
    transform-origin: center;
    animation: seloasaWheelSpin 0.16s linear infinite;
}

/* Haces de luz delanteros suaves */
.seloasa-iso-beam {
    animation: seloasaBeamGlow 1.8s ease-in-out infinite alternate;
}

/* Destello sutil Shimmer sobre la caja */
.seloasa-iso-shimmer {
    animation: seloasaShimmerIso 1.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    animation-delay: 0.6s;
}

/* Indicador verde Thermo-King */
.iso-led-pulse {
    animation: seloasaLedBlink 0.9s ease-in-out infinite alternate;
}

/* ==============================================================================
   KEYFRAMES DE ANIMACIÓN
   ============================================================================== */

/* Flujo continuo de líneas de carretera bajo las ruedas (Efecto de avance a 100 km/h) */
@keyframes seloasaCenterLineStream {
    from {
        stroke-dashoffset: 0;
    }
    to {
        stroke-dashoffset: 54; /* Longitud del periodo (30+24) para ciclo continuo perfecto */
    }
}

@keyframes seloasaShoulderStream {
    from {
        stroke-dashoffset: 0;
    }
    to {
        stroke-dashoffset: 48; /* Longitud del periodo (16+32) */
    }
}

/* Movimiento de amortiguación real sobre asfalto a velocidad de carretera */
@keyframes seloasaHighwayDrive {
    0%, 100% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(0.3px, -1.2px);
    }
    50% {
        transform: translate(-0.2px, -0.3px);
    }
    75% {
        transform: translate(0.2px, -1.5px);
    }
}

/* Estelas de viento desprendiéndose de la caja trasera */
@keyframes seloasaSlipstream {
    0% {
        opacity: 0.8;
        transform: translate(0, 0);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(-30px, -15px);
    }
}

/* Entrada isométrica suave del camión al carril */
@keyframes seloasaIsoDriveIn {
    0% {
        transform: translate(-140px, -70px);
        opacity: 0;
    }
    40% {
        opacity: 1;
    }
    85% {
        transform: translate(5px, 2.5px);
    }
    100% {
        transform: translate(0, 0);
        opacity: 1;
    }
}

/* Salida acelerada por la autopista hacia adelante */
@keyframes seloasaIsoDriveOut {
    0% {
        transform: translate(0, 0);
        opacity: 1;
    }
    100% {
        transform: translate(280px, 140px) scale(1.05);
        opacity: 0;
    }
}

/* Rotación continua de ruedas */
@keyframes seloasaWheelSpin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Haz de luz delantero */
@keyframes seloasaBeamGlow {
    0% {
        opacity: 0.5;
    }
    100% {
        opacity: 0.85;
    }
}

/* Shimmer en la cara lateral */
@keyframes seloasaShimmerIso {
    0% {
        transform: translateX(-100px);
    }
    50%, 100% {
        transform: translateX(300px);
    }
}

/* Parpadeo LED Thermo-King */
@keyframes seloasaLedBlink {
    0% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}