/**
 * DIGREJA - Global Loader
 * Loader baseado na identidade visual: Cruz + Trindade (3 pontos)
 * 
 * @version 1.0.0
 * @since 05/02/2026
 * 
 * COMO USAR:
 * ──────────
 * 1. Loader de página (automático):
 *    Aparece ao carregar a página e desaparece quando pronta.
 * 
 * 2. Via JavaScript:
 *    DIGREJA.loader.show()          → Exibe o loader
 *    DIGREJA.loader.show('Salvando...')  → Exibe com mensagem
 *    DIGREJA.loader.hide()          → Oculta o loader
 *    DIGREJA.loader.inline('#el')   → Loader inline dentro de um container
 *    DIGREJA.loader.removeInline('#el') → Remove loader inline
 * 
 * 3. Em botões (auto):
 *    <button data-loading="Salvando...">Salvar</button>
 * 
 * 4. Em formulários (auto):
 *    <form data-loader>...</form>
 */

/* =====================================================
   KEYFRAMES
   ===================================================== */

/* Pulso suave nos pontos da trindade */
@keyframes dg-trinity-pulse {
    0%, 100% { 
        transform: scale(1); 
        opacity: 0.7; 
    }
    50% { 
        transform: scale(1.35); 
        opacity: 1; 
    }
}

/* Órbita sutil dos pontos ao redor da cruz */
@keyframes dg-trinity-orbit-top {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.6; }
    25%  { transform: translate(3px, 2px) scale(1.2); opacity: 1; }
    50%  { transform: translate(0, 4px) scale(1); opacity: 0.8; }
    75%  { transform: translate(-3px, 2px) scale(1.3); opacity: 1; }
    100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
}

@keyframes dg-trinity-orbit-left {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.6; }
    25%  { transform: translate(-2px, -3px) scale(1.3); opacity: 1; }
    50%  { transform: translate(-4px, 0) scale(1); opacity: 0.8; }
    75%  { transform: translate(-2px, 3px) scale(1.2); opacity: 1; }
    100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
}

@keyframes dg-trinity-orbit-right {
    0%   { transform: translate(0, 0) scale(1); opacity: 0.6; }
    25%  { transform: translate(2px, 3px) scale(1.2); opacity: 1; }
    50%  { transform: translate(4px, 0) scale(1); opacity: 0.8; }
    75%  { transform: translate(2px, -3px) scale(1.3); opacity: 1; }
    100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
}

/* Glow da cruz */
@keyframes dg-cross-glow {
    0%, 100% { 
        filter: drop-shadow(0 0 6px rgba(232, 126, 4, 0.3)); 
    }
    50% { 
        filter: drop-shadow(0 0 16px rgba(232, 126, 4, 0.6)); 
    }
}

/* Fade suave do texto */
@keyframes dg-text-breathe {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Barra de progresso infinita */
@keyframes dg-progress-slide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(200%); }
}

/* Fade in do overlay */
@keyframes dg-overlay-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Fade out do overlay */
@keyframes dg-overlay-out {
    from { opacity: 1; }
    to   { opacity: 0; }
}

/* Scale in do ícone */
@keyframes dg-icon-in {
    from { 
        opacity: 0; 
        transform: scale(0.7); 
    }
    to { 
        opacity: 1; 
        transform: scale(1); 
    }
}

/* =====================================================
   LOADER GLOBAL (FULLSCREEN)
   ===================================================== */
.dg-loader-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #0e1220;
    animation: dg-overlay-in 0.2s ease-out;
    transition: opacity 0.4s ease;
}

/* Navegação interna (clique/submit/JS): destino não re-exibe o loader de carga
   (o loader já apareceu na página de origem) — evita o "loader duplo". */
html.dg-nav .dg-loader-overlay { display: none !important; }

.dg-loader-overlay.dg-loader-hiding {
    opacity: 0;
    pointer-events: none;
}

/* ── Ícone SVG da Cruz + Trindade ── */
.dg-loader-icon {
    width: 80px;
    height: 80px;
    animation: dg-icon-in 0.4s ease-out;
}

.dg-loader-icon .dg-cross-v {
    fill: #e87e04;
}

.dg-loader-icon .dg-cross-h {
    fill: #e87e04;
}

.dg-loader-icon .dg-cross-group {
    animation: dg-cross-glow 2.5s ease-in-out infinite;
}

/* Pontos da trindade */
.dg-loader-icon .dg-dot-top {
    fill: #0085ca;
    animation: dg-trinity-orbit-top 2.4s ease-in-out infinite;
    transform-origin: center;
}

.dg-loader-icon .dg-dot-left {
    fill: #0085ca;
    animation: dg-trinity-orbit-left 2.4s ease-in-out infinite 0.4s;
    transform-origin: center;
}

.dg-loader-icon .dg-dot-right {
    fill: #0085ca;
    animation: dg-trinity-orbit-right 2.4s ease-in-out infinite 0.8s;
    transform-origin: center;
}

/* ── Barra de progresso ── */
.dg-loader-bar {
    width: 160px;
    height: 3px;
    margin-top: 28px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.dg-loader-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 50%;
    border-radius: 4px;
    background: linear-gradient(90deg, transparent, #e87e04 40%, #0085ca 80%, transparent);
    animation: dg-progress-slide 1.6s ease-in-out infinite;
}

/* ── Texto de mensagem ── */
.dg-loader-text {
    margin-top: 18px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    animation: dg-text-breathe 2.2s ease-in-out infinite;
    user-select: none;
}

/* =====================================================
   LOADER INLINE (dentro de containers)
   ===================================================== */
.dg-loader-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    gap: 16px;
}

.dg-loader-inline .dg-loader-icon {
    width: 48px;
    height: 48px;
}

.dg-loader-inline .dg-loader-bar {
    width: 100px;
    height: 2px;
    margin-top: 0;
}

.dg-loader-inline .dg-loader-text {
    margin-top: 0;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--gray-400, #94a3b8);
}

/* ── Variante mini (para botões/cards) ── */
.dg-loader-mini {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.dg-loader-mini .dg-loader-icon {
    width: 20px;
    height: 20px;
}

.dg-loader-mini .dg-loader-bar,
.dg-loader-mini .dg-loader-text {
    display: none;
}

/* =====================================================
   BOTÃO COM LOADING STATE
   ===================================================== */
.btn.dg-btn-loading {
    pointer-events: none;
    opacity: 0.8;
    position: relative;
}

.btn.dg-btn-loading .btn-text-original {
    visibility: hidden;
}

.btn.dg-btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 18px;
    margin: -9px 0 0 -9px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-left-color: currentColor;
    border-radius: 50%;
    animation: dg-btn-spin 0.6s linear infinite;
}

@keyframes dg-btn-spin {
    to { transform: rotate(360deg); }
}

/* Botão com texto de loading */
.btn.dg-btn-loading[data-loading-text]::after {
    display: none;
}

.btn.dg-btn-loading .dg-btn-loading-content {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    white-space: nowrap;
}

/* =====================================================
   OVERLAY SEMI-TRANSPARENTE (para sections)
   ===================================================== */
.dg-section-loading {
    position: relative;
    pointer-events: none;
}

.dg-section-loading::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.75);
    z-index: 10;
    border-radius: inherit;
    backdrop-filter: blur(2px);
}

.dg-section-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 28px;
    height: 28px;
    margin: -14px 0 0 -14px;
    border: 3px solid var(--gray-200, #e2e8f0);
    border-top-color: var(--primary-color, #0085ca);
    border-radius: 50%;
    z-index: 11;
    animation: dg-btn-spin 0.7s linear infinite;
}

/* =====================================================
   TEMA LIGHT (para modais, overlays claros)
   ===================================================== */
.dg-loader-overlay.dg-loader-light {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(6px);
}

.dg-loader-overlay.dg-loader-light .dg-loader-text {
    color: var(--gray-500, #64748b);
}

.dg-loader-overlay.dg-loader-light .dg-loader-bar {
    background: rgba(0, 0, 0, 0.06);
}

/* =====================================================
   RESPONSIVO
   ===================================================== */
@media (max-width: 768px) {
    .dg-loader-icon {
        width: 64px;
        height: 64px;
    }
    
    .dg-loader-bar {
        width: 120px;
    }
    
    .dg-loader-text {
        font-size: 0.7rem;
    }
}

/* =====================================================
   ACESSIBILIDADE - Reduced Motion
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
    .dg-loader-icon .dg-dot-top,
    .dg-loader-icon .dg-dot-left,
    .dg-loader-icon .dg-dot-right {
        animation: dg-trinity-pulse 2s ease-in-out infinite;
    }
    
    .dg-loader-icon .dg-dot-left { animation-delay: 0.3s; }
    .dg-loader-icon .dg-dot-right { animation-delay: 0.6s; }
    
    .dg-loader-icon .dg-cross-group {
        animation: none;
    }
    
    .dg-loader-bar::after {
        animation-duration: 3s;
    }
}