/**
 * 通用 UI 状态组件（空态 / 加载 / 错误）
 * 与 legacy .empty / .loading 并存，新代码优先使用 .mika-* 类名。
 */

.mika-empty,
.mika-empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-flow: column;
    min-height: 280px;
    width: 100%;
    color: var(--mika-color-text-placeholder);
    text-align: center;
    gap: calc(var(--mika-gap) * 0.75);
}

.mika-empty__icon,
.mika-empty img {
    width: min(250px, 60vw);
    opacity: 0.5;
}

.mika-empty__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--mika-color-text-muted);
}

.mika-empty__desc {
    font-size: 14px;
    color: var(--mika-color-text-subtle);
    max-width: 360px;
}

/* 弹窗内缺 props / 无数据空态 */
.mika-modal-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 220px;
    padding: 28px 24px 32px;
    text-align: center;
    color: #8a91a1;
}

.mika-modal-empty > i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 4px;
    border-radius: var(--mika-radius, 14px);
    background: #fff1f3;
    color: var(--mika-color-primary);
    font-size: 26px;
}

.mika-modal-empty strong {
    font-size: 16px;
    font-weight: 650;
    color: #303746;
}

.mika-modal-empty p {
    margin: 0;
    max-width: 280px;
    font-size: 13px;
    line-height: 1.5;
    color: #8a91a1;
}

.mika-modal-empty__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 10px;
    min-height: 40px;
    padding: 0 18px;
    border: 0;
    border-radius: var(--mika-radius-button, 12px);
    background: var(--mika-color-primary);
    color: #fff !important;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.mika-modal-empty__cta:hover {
    opacity: 0.92;
}

.join-circle-container .circle-image-fallback {
    display: inline-flex;
    width: 46px;
    height: 46px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #f5f7f9;
    color: #8a91a1;
    font-size: 22px;
}

.app-layout-active .mika-pay-vip.pay-vip-empty {
    min-height: 260px;
    padding: 8px;
}

.mika-loading,
.mika-loading-state {
    position: relative;
    min-height: 120px;
}

.mika-loading::after,
.mika-loading-state::after {
    content: '';
    position: absolute;
    inset: 0;
    margin: auto;
    width: 24px;
    height: 30px;
    background: url(images/loading.svg) no-repeat center center;
    background-size: contain;
}

.mika-error,
.mika-error-state {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-flow: column;
    min-height: 200px;
    padding: calc(var(--mika-gap) * 1.5);
    color: var(--mika-color-text-muted);
    text-align: center;
    gap: calc(var(--mika-gap) * 0.5);
}

.mika-error__title {
    font-size: 16px;
    font-weight: 600;
    color: #e11d48;
}

.mika-error__desc {
    font-size: 14px;
    color: var(--mika-color-text-subtle);
}

.mika-error__retry {
    margin-top: var(--mika-gap);
    padding: 8px 16px;
    border-radius: var(--mika-radius-button, 12px);
    background: var(--mika-color-primary);
    color: #fff;
    cursor: pointer;
    border: none;
    font-size: 14px;
}

.mika-error__retry:hover {
    opacity: 0.92;
}

.mika-skeleton {
    background: linear-gradient(
        90deg,
        var(--mika-color-surface-muted) 25%,
        color-mix(in srgb, var(--mika-color-border) 40%, var(--mika-color-surface)) 50%,
        var(--mika-color-surface-muted) 75%
    );
    background-size: 200% 100%;
    animation: mika-skeleton-shimmer 1.2s ease-in-out infinite;
    border-radius: var(--mika-radius);
}

@keyframes mika-skeleton-shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}