/* ─── PrimeCard component base appearance ───────────────────────────────────
   UX-COMPONENT-CSS-BASE-APPEARANCE-001: the `layout::container::Card` shipped
   its Rust/Leptos implementation (prime-card* classes) with NO stylesheet
   repo-wide. This defines the base chrome so the component renders correctly
   on any host. Consumes the host's semantic --color-* aliases (dashboard
   style.css) with hard fallbacks + the --card-* runtime CSS variables the
   component emits (opacity/cursor/header-hover/animation/loading). Linked in
   the shell index.html per FRONTEND-COMPONENT-CSS-LINK-001; declared in the
   layout crate's [package.metadata.ux.css] manifest per UX-CSS-ASSET-001. */

.prime-card {
    background: var(--color-bg, #ffffff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
    padding: 1rem 1.25rem;
    color: var(--color-text, #0f172a);
    opacity: var(--card-opacity, 1);
    cursor: var(--card-cursor, default);
    transition:
        box-shadow 0.15s ease-in-out,
        opacity var(--card-animation-duration, 300ms)
            var(--card-animation-easing, ease-in-out);
}

.prime-card--interactive:hover {
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
}

.prime-card--disabled {
    opacity: var(--card-opacity, 0.6);
}

/* ─── Header ─── */

.prime-card__header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
    cursor: var(--card-header-cursor, default);
    border-radius: inherit;
}

.prime-card__header:hover {
    background: var(--card-header-hover-bg, transparent);
}

.prime-card--collapsible .prime-card__header:focus-visible {
    outline: 2px solid var(--color-primary, #2563eb);
    outline-offset: 2px;
}

.prime-card__header-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
}

.prime-card__title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text, #0f172a);
    line-height: 1.3;
}

.prime-card__subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-text-muted, #475569);
}

.prime-card__toggle-icon {
    margin-left: auto;
    display: inline-flex;
}

.prime-card__toggle-arrow {
    transition: transform var(--card-animation-duration, 300ms)
        var(--card-animation-easing, ease-in-out);
}

.prime-card__toggle-arrow--collapsed {
    transform: rotate(-90deg);
}

/* ─── Body / content ─── */

.prime-card__body {
    /* The content area; visible unless collapsed. */
}

.prime-card--content-hidden .prime-card__body {
    display: none;
}

.prime-card__body-content {
    /* Plain block — consumers structure their own content spacing. */
    display: block;
}

/* ─── Footer ─── */

.prime-card__footer {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-subtle, #eef2f7);
    cursor: var(--card-cursor, default);
}

/* ─── Loading overlay ─── */

.prime-card--loading {
    position: relative;
}

.prime-card__loading-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: var(--card-loading-overlay-bg, rgba(255, 255, 255, 0.8));
    border-radius: inherit;
    z-index: 1;
}

.prime-card__loading-spinner {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    border: 2px solid var(--color-border, #e2e8f0);
    border-top-color: var(--card-loading-spinner-color, var(--color-primary, #2563eb));
    animation: prime-card-spin 0.8s linear infinite;
}

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

@media (prefers-reduced-motion: reduce) {
    .prime-card__loading-spinner {
        animation: none;
    }
    .prime-card,
    .prime-card__toggle-arrow {
        transition: none;
    }
}

/* ─── Accent variants (consumers mark a Card with these via `class`) ─── */

.prime-card--accent-warning {
    border-left: 4px solid var(--color-warning, #b45309);
}

.prime-card--accent-info {
    border-left: 4px solid var(--color-info, #0284c7);
}

.prime-card--accent-error {
    border-left: 4px solid var(--color-error, #dc2626);
}

.prime-card--narrow {
    max-width: 42rem;
}