/* =====================================================
   Admin v3 — Estados transversais
   Loading skeleton, Empty, Error e RBAC.
   Estende o `.state-block` base de `_components.css` com
   ícone, layout vertical e variantes específicas.
   ===================================================== */

/* Empty/Error/RBAC layout — ícone grande + headline + desc + CTA centralizados */
.state-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--s-2);
    text-align: center;
    padding: var(--s-7) var(--s-4);
}

.state-block__icon {
    color: var(--text-mute);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--bg-sunken);
    margin-bottom: var(--s-1);
}

.state-block--error .state-block__icon {
    background: var(--bad-soft);
    color: var(--bad);
}

.state-block--rbac .state-block__icon {
    background: var(--accent-soft);
    color: var(--accent);
}

.state-block__title {
    margin: 0;
}

.state-block__desc {
    color: var(--text-mute);
    font-size: var(--text-sm);
    line-height: var(--lh-base);
    max-width: 480px;
    margin: 0;
}

.state-block__cta {
    margin-top: var(--s-2);
}

/* =====================================================
   Skeleton — shimmer rows / cards
   ===================================================== */
.skeleton {
    position: relative;
    background: var(--bg-sunken);
    border-radius: var(--r-md);
    overflow: hidden;
}

.skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--bg-hover) 50%,
        transparent 100%
    );
    animation: skeleton-shimmer 1.4s linear infinite;
    transform: translateX(-100%);
}

@keyframes skeleton-shimmer {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@media (prefers-reduced-motion: reduce) {
    .skeleton::after {
        animation: none;
        background: var(--bg-hover);
        opacity: 0.6;
        transform: none;
    }
}

.skeleton--row {
    height: 44px;
}

.skeleton--card {
    height: 120px;
}

.skeleton-stack {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
}

.skeleton-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-3);
}

@media (min-width: 600px) {
    .skeleton-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .skeleton-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* Sobrescreve a animação `state-block--loading` antiga (que pulsava o bloco
   inteiro). Em admin-v3, estado loading prefere skeleton, mas mantemos o
   bloco simples como fallback para mensagens curtas. */
.state-block--loading {
    animation: state-pulse 1.4s linear infinite;
    color: var(--text-mute);
}

@keyframes state-pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
    .state-block--loading {
        animation: none;
        opacity: 0.85;
    }
}