/**
 * SISTEMA DE LOADER GLOBAL
 * =====================================================
 * Loader profesional con Tailwind CSS y variables de marca
 * Se integra automáticamente con todas las operaciones de base de datos
 * 
 * @version 1.0.0
 */

/* ============================================
   OVERLAY Y CONTENEDOR PRINCIPAL
   ============================================ */

#global-loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#global-loader-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   CONTENEDOR DEL LOADER
   ============================================ */

.loader-container {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    min-width: 280px;
    max-width: 90vw;
    animation: loaderSlideIn 0.3s ease-out;
}

@keyframes loaderSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ============================================
   SPINNER PRINCIPAL
   ============================================ */

.loader-spinner {
    position: relative;
    width: 64px;
    height: 64px;
}

.loader-spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 4px solid transparent;
    border-top-color: var(--marca-primary, #004DA8);
    border-right-color: var(--marca-primary, #004DA8);
    border-radius: 50%;
    animation: loaderSpin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

.loader-spinner-ring:nth-child(2) {
    border-top-color: var(--marca-accent, #0066CC);
    border-right-color: var(--marca-accent, #0066CC);
    animation-delay: -0.15s;
    width: 85%;
    height: 85%;
    top: 7.5%;
    left: 7.5%;
}

.loader-spinner-ring:nth-child(3) {
    border-top-color: rgba(var(--marca-primary-rgb, 0, 77, 168), 0.3);
    border-right-color: rgba(var(--marca-primary-rgb, 0, 77, 168), 0.3);
    animation-delay: -0.3s;
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
}

@keyframes loaderSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* ============================================
   ICONO CENTRAL
   ============================================ */

.loader-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    color: var(--marca-primary, #004DA8);
    animation: loaderPulse 1.5s ease-in-out infinite;
}

@keyframes loaderPulse {
    0%, 100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(0.9);
    }
}

/* ============================================
   TEXTO Y MENSAJE
   ============================================ */

.loader-text {
    text-align: center;
}

.loader-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--marca-primary, #004DA8);
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.01em;
}

.loader-message {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
    line-height: 1.5;
}

/* ============================================
   BARRA DE PROGRESO (OPCIONAL)
   ============================================ */

.loader-progress {
    width: 100%;
    height: 4px;
    background: #e5e7eb;
    border-radius: 9999px;
    overflow: hidden;
    display: none;
}

.loader-progress.active {
    display: block;
}

.loader-progress-bar {
    height: 100%;
    background: var(--marca-gradient-primary, linear-gradient(135deg, #004DA8 0%, #003D87 100%));
    border-radius: 9999px;
    transition: width 0.3s ease;
    width: 0%;
}

.loader-progress-bar.indeterminate {
    width: 30%;
    animation: loaderProgressIndeterminate 1.5s ease-in-out infinite;
}

@keyframes loaderProgressIndeterminate {
    0% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(350%);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* ============================================
   VARIANTES DE LOADER
   ============================================ */

/* Loader compacto para operaciones rápidas */
.loader-container.compact {
    padding: 1.5rem;
    min-width: 200px;
}

.loader-container.compact .loader-spinner {
    width: 48px;
    height: 48px;
}

.loader-container.compact .loader-title {
    font-size: 1rem;
}

.loader-container.compact .loader-message {
    font-size: 0.8125rem;
}

/* Loader inline para elementos específicos */
.loader-inline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.loader-inline .loader-spinner-small {
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: var(--marca-primary, #004DA8);
    border-right-color: var(--marca-primary, #004DA8);
    border-radius: 50%;
    animation: loaderSpin 0.8s linear infinite;
}

.loader-inline .loader-text-small {
    font-size: 0.875rem;
    color: var(--marca-primary, #004DA8);
    font-weight: 600;
}

/* ============================================
   ESTADOS DE MARCA
   ============================================ */

[data-marca="KTM"] .loader-spinner-ring {
    border-top-color: #F2771A;
    border-right-color: #F2771A;
}

[data-marca="KTM"] .loader-spinner-ring:nth-child(2) {
    border-top-color: #FF8533;
    border-right-color: #FF8533;
}

[data-marca="KTM"] .loader-icon,
[data-marca="KTM"] .loader-title {
    color: #F2771A;
}

[data-marca="HUSQVARNA"] .loader-spinner-ring {
    border-top-color: #273A60;
    border-right-color: #273A60;
}

[data-marca="HUSQVARNA"] .loader-spinner-ring:nth-child(2) {
    border-top-color: #005AAB;
    border-right-color: #005AAB;
}

[data-marca="HUSQVARNA"] .loader-icon,
[data-marca="HUSQVARNA"] .loader-title {
    color: #273A60;
}

[data-marca="HONDA"] .loader-spinner-ring {
    border-top-color: #CC0000;
    border-right-color: #CC0000;
}

[data-marca="HONDA"] .loader-spinner-ring:nth-child(2) {
    border-top-color: #E60000;
    border-right-color: #E60000;
}

[data-marca="HONDA"] .loader-icon,
[data-marca="HONDA"] .loader-title {
    color: #CC0000;
}

[data-marca="AKT"] .loader-spinner-ring {
    border-top-color: #003F6D;
    border-right-color: #003F6D;
}

[data-marca="AKT"] .loader-spinner-ring:nth-child(2) {
    border-top-color: #005AAB;
    border-right-color: #005AAB;
}

[data-marca="AKT"] .loader-icon,
[data-marca="AKT"] .loader-title {
    color: #003F6D;
}

[data-marca="SUZUKI"] .loader-spinner-ring {
    border-top-color: #E20A17;
    border-right-color: #E20A17;
}

[data-marca="SUZUKI"] .loader-spinner-ring:nth-child(2) {
    border-top-color: #003399;
    border-right-color: #003399;
}

[data-marca="SUZUKI"] .loader-icon,
[data-marca="SUZUKI"] .loader-title {
    color: #E20A17;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 640px) {
    .loader-container {
        padding: 1.5rem;
        min-width: 240px;
        gap: 1rem;
    }
    
    .loader-spinner {
        width: 56px;
        height: 56px;
    }
    
    .loader-title {
        font-size: 1rem;
    }
    
    .loader-message {
        font-size: 0.8125rem;
    }
}

@media (max-width: 374px) {
    .loader-container {
        padding: 1.25rem;
        min-width: 200px;
    }
    
    .loader-spinner {
        width: 48px;
        height: 48px;
    }
    
    .loader-title {
        font-size: 0.9375rem;
    }
    
    .loader-message {
        font-size: 0.75rem;
    }
}

/* ============================================
   ACCESIBILIDAD
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .loader-spinner-ring,
    .loader-icon,
    .loader-progress-bar,
    .loader-container {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   UTILIDADES
   ============================================ */

.loader-hidden {
    display: none !important;
}

.loader-fade-in {
    animation: loaderFadeIn 0.3s ease-out;
}

@keyframes loaderFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}