/**
 * ============================================================================
 * AJAX-LOADER.CSS - Estilos para Sistema Ajax
 * ============================================================================
 * Versão: 1.0.0
 * Data: 2025-01-26
 * ============================================================================
 */

/* ============================================================================
 * Loading Global - Barra Superior
 * ============================================================================ */

/* Barra de progresso no topo da página */
body.ajax-loading::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--color-primary, #0f4c3a) 0%,
        var(--color-primary, #0f4c3a) 25%,
        var(--color-primary-500) 50%,
        var(--color-primary, #0f4c3a) 75%,
        var(--color-primary, #0f4c3a) 100%
    );
    background-size: 200% 100%;
    animation: ajaxLoadingBar 1.5s linear infinite;
    z-index: var(--z-maximum, 9999);
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb, 59, 130, 246), 0.5);
}

/* Animação da barra de loading - usa ajaxLoadingBar de _animations.css */

/* Overlay de loading (opcional) */
body.ajax-loading-overlay::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    z-index: 9998;
    opacity: 0;
    animation: fade-in 0.3s forwards;
}

/* ============================================================================
 * Loading Inline - Para Elementos Específicos
 * ============================================================================ */

/* Container com loading */
.ajax-loading-element {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.ajax-loading-element::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-gray-100, #f3f4f6);
    border-top-color: var(--color-primary, #3b82f6);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================================================
 * Spinners
 * ============================================================================ */

/* Spinner básico */
.ajax-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-100, #f3f4f6);
    border-top-color: var(--color-primary, #3b82f6);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.ajax-spinner.small {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.ajax-spinner.large {
    width: 32px;
    height: 32px;
    border-width: 3px;
}

/* Spinner com pontos */
.ajax-dots {
    display: inline-flex;
    gap: 4px;
}

.ajax-dots span {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--color-primary, #3b82f6);
    border-radius: 50%;
    animation: ajax-dots-pulse 1.4s ease-in-out infinite;
}

.ajax-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.ajax-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* ============================================================================
 * Botões com Loading
 * ============================================================================ */

/* Botão em estado de loading */
.btn-ajax-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-ajax-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Botão com texto de loading */
.btn-ajax-text-loading {
    position: relative;
}

.btn-ajax-text-loading .btn-text {
    opacity: 0;
}

.btn-ajax-text-loading .btn-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* ============================================================================
 * Cards e Containers
 * ============================================================================ */

/* Card com loading overlay */
.card-ajax-loading {
    position: relative;
}

.card-ajax-loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(var(--color-white-rgb, 255, 255, 255), 0.9);
    z-index: 10;
    border-radius: inherit;
}

.card-ajax-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200, #e5e7eb);
    border-top-color: var(--color-primary, #3b82f6);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    z-index: 11;
}

/* ============================================================================
 * Skeleton Loading
 * ============================================================================ */

/* Skeleton base */
.ajax-skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-100, #f3f4f6) 25%,
        var(--color-gray-200, #e5e7eb) 50%,
        var(--color-gray-100, #f3f4f6) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: 4px;
}

.ajax-skeleton.text {
    height: 14px;
    margin: 8px 0;
}

.ajax-skeleton.title {
    height: 24px;
    margin: 12px 0;
    width: 60%;
}

.ajax-skeleton.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.ajax-skeleton.image {
    width: 100%;
    height: 200px;
}

.ajax-skeleton.button {
    width: 120px;
    height: 38px;
    border-radius: 6px;
}

/* ============================================================================
 * Mensagens de Status
 * ============================================================================ */

/* Container de mensagem Ajax */
.ajax-message {
    padding: 12px 16px;
    border-radius: 6px;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slide-in 0.3s ease-out;
}

.ajax-message.success {
    background: var(--color-green-50, #f0fdf4);
    border: 1px solid var(--color-green-300, #86efac);
    color: var(--color-green-800, #166534);
}

.ajax-message.error {
    background: var(--color-red-50, #fef2f2);
    border: 1px solid var(--color-red-300, #fca5a5);
    color: var(--color-red-800, #991b1b);
}

.ajax-message.warning {
    background: var(--color-yellow-50, #fffbeb);
    border: 1px solid var(--color-yellow-300, #fde047);
    color: var(--color-yellow-800, #854d0e);
}

.ajax-message.info {
    background: var(--color-blue-50, #eff6ff);
    border: 1px solid var(--color-blue-300, #93c5fd);
    color: var(--color-blue-800, #1e40af);
}

/* ============================================================================
 * Animações - @keyframes centralizados em _animations.css
 * Este arquivo usa: spin, shimmer, fadeIn, slideInUp, pulseGlow
 * ============================================================================ */

/* Pulse dos dots - específico deste arquivo */
@keyframes ajax-dots-pulse {
    0%, 80%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    40% {
        transform: scale(1.3);
        opacity: 0.7;
    }
}

/* ============================================================================
 * Progress Bar
 * ============================================================================ */

/* Barra de progresso para uploads */
.ajax-progress {
    width: 100%;
    height: 8px;
    background: var(--color-gray-100, #f3f4f6);
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
}

.ajax-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary, #0f4c3a), var(--color-primary-500));
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.ajax-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: ajax-progress-shine 1s ease-in-out infinite;
}

@keyframes ajax-progress-shine {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(100%);
    }
}

/* ============================================================================
 * Responsividade
 * ============================================================================ */

/* Mobile */
@media (max-width: 640px) {
    .ajax-skeleton.title {
        width: 80%;
    }

    .ajax-message {
        font-size: 14px;
        padding: 10px 12px;
    }
}

/* ============================================================================
 * Dark Mode
 * ============================================================================ */

/* 🚫 REMOVIDO: @media (prefers-color-scheme: dark)
 * MOTIVO: Não deve respeitar preferência do SO, apenas escolha explícita do usuário
 * O tema só deve mudar quando o usuário clicar no botão de tema escuro
 * Mantemos apenas as regras com .dark para controle manual
 */

/* Classes dark mode explícitas */
.dark body.ajax-loading-overlay::after {
    background: rgba(0, 0, 0, 0.6);
}

.dark .card-ajax-loading::before {
    background: rgba(0, 0, 0, 0.8);
}

.dark .ajax-skeleton {
    background: linear-gradient(
        90deg,
        var(--dark-gray-700, #374151) 25%,
        var(--dark-gray-600, #4b5563) 50%,
        var(--dark-gray-700, #374151) 75%
    );
}

.dark .ajax-progress {
    background: var(--dark-gray-700, #374151);
}