/* Shared NCIA Cloud page-transition overlay for auth and workspace pages. */
:root {
    --ncia-loader-backdrop: rgba(248, 250, 252, .96);
    --ncia-loader-surface: rgba(255, 255, 255, .94);
    --ncia-loader-text: #172033;
    --ncia-loader-muted: #64748b;
    --ncia-loader-ring: #dc111f;
    --ncia-loader-shadow: 0 24px 70px rgba(15, 23, 42, .18);
}

:root[data-theme="dark"] {
    --ncia-loader-backdrop: rgba(14, 17, 22, .96);
    --ncia-loader-surface: rgba(25, 29, 36, .94);
    --ncia-loader-text: #f8fafc;
    --ncia-loader-muted: #cbd5e1;
    --ncia-loader-shadow: 0 26px 80px rgba(0, 0, 0, .48);
}

.page-transition-loader[hidden] {
    display: none !important;
}

.page-transition-loader {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: grid;
    place-items: center;
    padding: 24px;
    overflow: hidden;
    background: var(--ncia-loader-backdrop);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease-out;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.page-transition-loader.is-active {
    opacity: 1;
    pointer-events: all;
}

.page-transition-loader__card {
    display: grid;
    min-width: min(280px, calc(100vw - 48px));
    place-items: center;
    gap: 18px;
    padding: 30px 34px 26px;
    border: 1px solid rgba(148, 163, 184, .25);
    border-radius: 24px;
    background: var(--ncia-loader-surface);
    box-shadow: var(--ncia-loader-shadow);
    text-align: center;
}

.page-transition-loader__mark {
    position: relative;
    display: grid;
    width: 144px;
    height: 104px;
    place-items: center;
    isolation: isolate;
}

.page-transition-loader__mark::before {
    position: absolute;
    inset: 0 18px;
    z-index: -1;
    border: 2px solid rgba(220, 17, 31, .16);
    border-top-color: var(--ncia-loader-ring);
    border-radius: 50%;
    content: "";
    animation: ncia-loader-orbit 1.15s cubic-bezier(.55, .12, .32, .92) infinite;
}

.page-transition-loader__mark::after {
    position: absolute;
    inset: 15px 32px;
    z-index: -1;
    border-radius: 50%;
    background: rgba(220, 17, 31, .1);
    content: "";
    filter: blur(12px);
    animation: ncia-loader-glow 1.6s ease-in-out infinite;
}

.page-transition-loader__logo {
    display: block;
    width: 94px;
    height: auto;
    filter: drop-shadow(0 8px 14px rgba(153, 27, 27, .18));
    animation: ncia-loader-breathe 1.6s ease-in-out infinite;
}

.page-transition-loader__message {
    margin: 0;
    color: var(--ncia-loader-text);
    font: 750 16px/1.35 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    letter-spacing: -.01em;
}

.page-transition-loader__hint {
    margin: -10px 0 0;
    color: var(--ncia-loader-muted);
    font: 500 13px/1.45 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

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

@keyframes ncia-loader-glow {
    0%, 100% { opacity: .45; transform: scale(.9); }
    50% { opacity: 1; transform: scale(1.08); }
}

@keyframes ncia-loader-breathe {
    0%, 100% { transform: scale(.96); }
    50% { transform: scale(1.03); }
}

@media (max-width: 420px) {
    .page-transition-loader {
        padding: 18px;
    }

    .page-transition-loader__card {
        min-width: min(250px, calc(100vw - 36px));
        padding: 26px 24px 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .page-transition-loader,
    .page-transition-loader__mark::before,
    .page-transition-loader__mark::after,
    .page-transition-loader__logo {
        animation: none !important;
        transition: none !important;
    }

    .page-transition-loader__mark::before {
        border-color: rgba(220, 17, 31, .38);
    }
}