/**
 * V-Omar VTEX Hub - Page Loader Moderno
 * 
 * Loading screen adaptável ao tema dark/light
 * com animações suaves e design minimalista
 */

/* ==========================================
   LOADER OVERLAY
   ========================================== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

/* Tema claro */
:root .page-loader,
[data-theme="light"] .page-loader {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #f8f9fa 100%);
}

/* Tema escuro */
[data-theme="dark"] .page-loader {
    background: linear-gradient(135deg, #0f1117 0%, #1a1d24 50%, #0f1117 100%);
}

.page-loader.hide {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* ==========================================
   LOGO ANIMADA
   ========================================== */
.loader-logo {
    width: 90px;
    height: 90px;
    margin-bottom: 1.5rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-logo img {
    width: 70px;
    height: 70px;
    object-fit: contain;
    animation: logoPulse 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 12px rgba(229, 21, 55, 0.3));
    z-index: 1;
}

/* Ring animado ao redor do logo */
.loader-ring {
    position: absolute;
    top: -5px;
    left: -5px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--brand-primary, #e51537);
    animation: ringRotate 1s linear infinite;
}

.loader-ring::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    right: 3px;
    bottom: 3px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--brand-primary, #e51537);
    opacity: 0.4;
    animation: ringRotate 1.5s linear infinite reverse;
}

/* ==========================================
   SPINNER ALTERNATIVO (3 dots)
   ========================================== */
.loader-dots {
    display: flex;
    gap: 8px;
    margin-bottom: 1.5rem;
}

.loader-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--brand-primary, #e51537);
    animation: dotBounce 1.4s ease-in-out infinite;
}

.loader-dots span:nth-child(1) { animation-delay: 0s; }
.loader-dots span:nth-child(2) { animation-delay: 0.2s; }
.loader-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ==========================================
   SPINNER CIRCULAR MODERNO
   ========================================== */
.loader-spinner {
    width: 48px;
    height: 48px;
    position: relative;
    margin-bottom: 1.5rem;
}

.loader-spinner::before,
.loader-spinner::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
}

.loader-spinner::before {
    border-top-color: var(--brand-primary, #e51537);
    animation: spinnerRotate 1s linear infinite;
}

.loader-spinner::after {
    border-bottom-color: var(--brand-primary, #e51537);
    opacity: 0.3;
    animation: spinnerRotate 1s linear infinite reverse;
}

/* ==========================================
   TEXTO DE LOADING
   ========================================== */
.loader-text {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-align: center;
}

:root .loader-text,
[data-theme="light"] .loader-text {
    color: #374151;
}

[data-theme="dark"] .loader-text {
    color: #f3f4f6;
}

.loader-subtext {
    font-size: 0.875rem;
    text-align: center;
    opacity: 0.7;
}

:root .loader-subtext,
[data-theme="light"] .loader-subtext {
    color: #6b7280;
}

[data-theme="dark"] .loader-subtext {
    color: #9ca3af;
}

/* ==========================================
   BARRA DE PROGRESSO
   ========================================== */
.loader-progress {
    width: 200px;
    height: 3px;
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1rem;
}

:root .loader-progress,
[data-theme="light"] .loader-progress {
    background: #e5e7eb;
}

[data-theme="dark"] .loader-progress {
    background: #2d3139;
}

.loader-progress-bar {
    height: 100%;
    width: 30%;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--brand-primary, #e51537), var(--brand-primary-hover, #c41230));
    animation: progressSlide 1.5s ease-in-out infinite;
}

/* ==========================================
   SKELETON LOADER (para conteúdo)
   ========================================== */
.skeleton {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

:root .skeleton,
[data-theme="light"] .skeleton {
    background: #e5e7eb;
}

[data-theme="dark"] .skeleton {
    background: #2d3139;
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    transform: translateX(-100%);
    animation: skeletonShimmer 1.5s infinite;
}

:root .skeleton::after,
[data-theme="light"] .skeleton::after {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}

[data-theme="dark"] .skeleton::after {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

/* ==========================================
   ANIMAÇÕES
   ========================================== */
@keyframes logoPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

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

@keyframes dotBounce {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

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

@keyframes progressSlide {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(250%); }
    100% { transform: translateX(-100%); }
}

@keyframes skeletonShimmer {
    100% { transform: translateX(100%); }
}

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

/* Loader minimalista (só spinner) */
.page-loader.minimal .loader-logo,
.page-loader.minimal .loader-text,
.page-loader.minimal .loader-subtext,
.page-loader.minimal .loader-progress {
    display: none;
}

/* Loader com logo grande */
.page-loader.with-logo .loader-spinner,
.page-loader.with-logo .loader-dots {
    display: none;
}

/* Loader com dots */
.page-loader.with-dots .loader-spinner,
.page-loader.with-dots .loader-logo {
    display: none;
}

/* ==========================================
   TRANSIÇÃO DE CONTEÚDO
   ========================================== */
.page-content {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.page-content.loading {
    opacity: 0;
    transform: translateY(10px);
}