/* [Atlas] criado em 2026-05-04 - Sprint 3A / S2 (AB#3939)
   Estilos do AtlasLoader (canvas K6 + frase).
   Plano: atlas-ai/sprint3a_planejamento_consolidado.md */

/* ============================================================
   Variaveis de paleta (revisadas em 2026-05-04 — feedback PO)
   - Light: fundo branco com leve hint teal + texto teal-escuro
     harmoniza com o canvas K6 e mantem contraste AA.
   - Dark: mantido como atlas-loading.html original.
   ============================================================ */
:root {
    --atlas-loader-bg-light: rgba(243, 251, 250, 0.97);
    --atlas-loader-bg-dark: rgba(10, 25, 41, 0.94);
    --atlas-loader-text-light: #0F4D4A;
    --atlas-loader-text-dark: #e0e0e0;
}

/* ============================================================
   Container base (oculto por padrao — controlado pela API JS)
   ============================================================ */
.atlas-loader[hidden] {
    display: none !important;
}

.atlas-loader {
    align-items: center;
    justify-content: center;
    background: var(--atlas-loader-bg-light);
    color: var(--atlas-loader-text-light);
    transition: opacity 0.25s ease;
}

.atlas-loader.is-dark {
    background: var(--atlas-loader-bg-dark);
    color: var(--atlas-loader-text-dark);
}

/* ============================================================
   Modo global — overlay viewport inteira
   ============================================================ */
.atlas-loader--global {
    position: fixed;
    inset: 0;
    z-index: 1080;
    display: flex;
}

/* ============================================================
   Modo local — preenche o container que o envolve
   ============================================================ */
.atlas-loader--local {
    position: absolute;
    inset: 0;
    z-index: 10;
    display: flex;
    border-radius: inherit;
    backdrop-filter: blur(2px);
}

/* Pai do loader local precisa de position relativa */
[data-atlas-loader-host] {
    position: relative;
}

/* ============================================================
   Conteudo (canvas + frase)
   ============================================================ */
.atlas-loader__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    padding: 1rem;
}

.atlas-loader__canvas {
    display: block;
    width: 100%;
    height: auto;
    max-width: 140px;
    max-height: 140px;
}

/* Modo local — canvas menor */
.atlas-loader--local .atlas-loader__canvas {
    max-width: 80px;
    max-height: 80px;
}

.atlas-loader__frase {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    text-align: center;
    letter-spacing: 0.01em;
    max-width: 24rem;
}

/* ============================================================
   Estado terminal de erro — Lote 1 (AB#4115)
   ============================================================
   Quando o overlay troca para o estado "error", o bloco .atlas-loader__error
   fica visivel e o .atlas-loader__content (canvas+frase) fica oculto.
   Mantem o mesmo flex container do overlay, sem flicker.
*/
.atlas-loader__error[hidden] {
    display: none !important;
}

.atlas-loader__error {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    max-width: 28rem;
    text-align: center;
}

.atlas-loader__error-icon {
    font-size: 3.25rem;
    line-height: 1;
    color: #B45309;
}

.atlas-loader.is-dark .atlas-loader__error-icon {
    color: #F59E0B;
}

.atlas-loader__error-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.01em;
}

.atlas-loader__error-msg {
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
    line-height: 1.4;
    max-width: 26rem;
}

.atlas-loader__error-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 0.25rem;
}

/* ============================================================
   Acessibilidade — respeita prefers-reduced-motion (R2 do plano)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .atlas-loader__canvas {
        display: none;
    }

    .atlas-loader__content::before {
        content: '';
        width: 2.5rem;
        height: 2.5rem;
        border: 3px solid #3B9A97;
        border-top-color: transparent;
        border-radius: 50%;
        animation: atlas-loader-spin 0.9s linear infinite;
    }
}

@keyframes atlas-loader-spin {
    to { transform: rotate(360deg); }
}