/* Shared loaders. Colours come from reading-room tokens only. */

.nk-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 90;
    background: var(--cb);
    transform: scaleX(0);
    transform-origin: 0 50%;
    pointer-events: none;
}

.nk-bar.is-done {
    opacity: 0;
    transition: opacity 200ms linear;
}

.nk-status {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nk-splash {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 18px;
    background: var(--bg);
    opacity: 1;
    transition: opacity 200ms linear;
}

.nk-splash.is-out {
    opacity: 0;
    pointer-events: none;
}

.nk-mark {
    position: relative;
    width: 84px;
    height: 84px;
}

.nk-mark-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--cb) 35%, var(--line));
}

.nk-mark-orbit {
    position: absolute;
    inset: -6px;
    animation: nk-orbit 1.4s linear infinite;
}

.nk-mark-orbit i {
    position: absolute;
    top: 0;
    left: 50%;
    width: 10px;
    height: 10px;
    margin-left: -5px;
    border-radius: 50%;
    background: var(--amber);
}

.nk-mark-core {
    position: absolute;
    inset: 16px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: var(--cb);
    color: var(--on-cb);
    font-family: "Bricolage Grotesque", Georgia, sans-serif;
    font-weight: 700;
    letter-spacing: -0.04em;
}

.nk-splash p {
    margin: 0;
    color: var(--mu);
    font-size: 14px;
}

.nk-skel .res-cover,
.nk-skel-block {
    position: relative;
    overflow: hidden;
    background: var(--s2);
    color: transparent;
}

.nk-skel .res-cover {
    min-height: 140px;
}

.nk-skel-block::after,
.nk-skel .res-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        100deg,
        transparent 20%,
        color-mix(in srgb, var(--card) 72%, transparent) 50%,
        transparent 80%
    );
    transform: translateX(-100%);
    animation: nk-shimmer 1.4s ease-in-out infinite;
}

.nk-skel-pill {
    width: 72px;
    height: 22px;
    border-radius: 999px;
}

.nk-skel-title {
    height: 22px;
    width: 70%;
    border-radius: 8px;
}

.nk-skel-line {
    height: 14px;
    width: 100%;
    border-radius: 8px;
}

.nk-skel-line-short {
    width: 55%;
}

.nk-skel .res-actions .nk-skel-block {
    flex: 1;
    min-height: 42px;
    border-radius: 10px;
}

.nk-rise {
    animation: nk-rise 220ms ease both;
}

.nk-dl {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    gap: 8px;
}

.nk-dl .nk-dl-label {
    position: relative;
    z-index: 1;
}

.nk-dl[data-state="preparing"]::before,
.nk-dl[data-state="progress"]::before,
.nk-dl[data-state="done"]::before {
    content: "";
}

.nk-dl[data-state="preparing"] {
    background: var(--cb);
    color: var(--on-cb);
}

.nk-dl[data-state="preparing"]::before {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--on-cb) 35%, transparent);
    border-top-color: var(--on-cb);
    animation: nk-spin 0.7s linear infinite;
}

.nk-dl[data-state="progress"] {
    background: color-mix(in srgb, var(--cb) 28%, var(--s2));
    color: var(--on-cb);
}

.nk-dl[data-state="progress"]::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: 100%;
    background: var(--cb);
    transform: scaleX(var(--nk-p, 0.08));
    transform-origin: 0 50%;
    z-index: 0;
}

.nk-dl[data-state="progress"][data-unknown]::before {
    width: 40%;
    animation: nk-stripe 1.1s ease-in-out infinite;
}

.nk-dl[data-state="done"] {
    background: color-mix(in srgb, var(--mint) 18%, var(--card));
    color: var(--mint);
}

.nk-dl[data-state="error"] {
    background: color-mix(in srgb, var(--fail) 16%, var(--card));
    color: var(--fail);
}

.nk-dots {
    display: inline-flex;
    gap: 4px;
    padding: 8px 4px;
}

.nk-dots i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--mu);
    animation: nk-dot 1s ease-in-out infinite;
}

.nk-dots i:nth-child(2) { animation-delay: 0.15s; }
.nk-dots i:nth-child(3) { animation-delay: 0.3s; }

.nk-search-skel {
    display: grid;
    gap: 10px;
    padding: 12px;
}

.nk-search-skel span {
    display: block;
    height: 36px;
    border-radius: 8px;
    background: var(--s2);
    position: relative;
    overflow: hidden;
}

.nk-search-skel span::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent 20%, color-mix(in srgb, var(--card) 72%, transparent) 50%, transparent 80%);
    transform: translateX(-100%);
    animation: nk-shimmer 1.4s ease-in-out infinite;
}

.nk-fail {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 92px;
    padding: 16px;
    border-radius: 16px;
    background: var(--s1);
    border: 1px solid var(--line);
}

.nk-fail-mark {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: color-mix(in srgb, var(--fail) 16%, var(--card));
    color: var(--fail);
    font-weight: 700;
    flex-shrink: 0;
}

.nk-fail strong {
    display: block;
    color: var(--tx);
}

.nk-fail p {
    margin: 2px 0 0;
    color: var(--mu);
    font-size: 14px;
}

.nk-fail-retry {
    margin-left: auto;
    border: 1px solid var(--line);
    background: var(--s1);
    color: var(--tx);
    border-radius: 999px;
    min-height: 40px;
    padding: 8px 14px;
    cursor: pointer;
}

@keyframes nk-orbit {
    to { transform: rotate(360deg); }
}

@keyframes nk-shimmer {
    to { transform: translateX(100%); }
}

@keyframes nk-rise {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes nk-stripe {
    from { transform: translateX(-120%); }
    to { transform: translateX(280%); }
}

@keyframes nk-dot {
    0%, 80%, 100% { opacity: 0.3; }
    40% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .nk-mark-orbit,
    .nk-skel-block::after,
    .nk-skel .res-cover::after,
    .nk-dl[data-state="preparing"]::before,
    .nk-dl[data-state="progress"][data-unknown]::before,
    .nk-search-skel span::after,
    .nk-dots i,
    .nk-rise {
        animation: none;
    }

    .nk-rise {
        opacity: 1;
    }

    .nk-dl[data-state="progress"][data-unknown]::before {
        transform: none;
        width: 100%;
        opacity: 0.45;
    }
}