/* ==========================================================================
   STARLITweb — nástěnka s widgety (Azure DevOps style positional grid)
   Bootstrap 5 friendly. No JS libraries, no icon font.
   ========================================================================== */

.dsh {
    --dsh-cols: 4;
    --dsh-row: 168px;          /* height of one grid row */
    --dsh-gap: 12px;
    --dsh-radius: 8px;
    --dsh-tile-pad: .625rem;

    --dsh-surface: var(--bs-body-bg, #fff);
    --dsh-border: var(--bs-border-color, #dee2e6);
    --dsh-head-bg: var(--bs-tertiary-bg, #f8f9fa);
    --dsh-muted: var(--bs-secondary-color, #6c757d);
    --dsh-accent: var(--bs-primary, #0d6efd);
    --dsh-danger: var(--bs-danger, #dc3545);
    --dsh-ok: var(--bs-success, #198754);

    position: relative;
}

/* ---- toolbar ----------------------------------------------------------- */

.dsh-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: var(--dsh-gap);
    min-height: 2.25rem;
}

.dsh-toolbar__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.dsh-toolbar__hint {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    margin-left: .75rem;
    font-size: .8125rem;
    color: var(--dsh-muted);
}

.dsh-toolbar__actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .375rem;
    margin-left: auto;
}

.dsh-toolbar__sep {
    width: 1px;
    height: 1.5rem;
    background: var(--dsh-border);
    margin: 0 .25rem;
}

.dsh-cols {
    display: inline-flex;
    align-items: center;
    gap: .125rem;
    padding: .125rem .375rem;
    border: 1px solid var(--dsh-border);
    border-radius: .375rem;
}

.dsh-cols__label {
    font-size: .75rem;
    color: var(--dsh-muted);
    margin-right: .25rem;
}

.dsh-cols__btn {
    min-width: 1.5rem;
    padding: .05rem .25rem;
    font-size: .8125rem;
    border: 0;
    border-radius: .25rem;
    background: transparent;
    color: var(--dsh-muted);
    cursor: pointer;
}

.dsh-cols__btn:hover { background: var(--dsh-head-bg); }

.dsh-cols__btn.is-on {
    background: var(--dsh-accent);
    color: #fff;
}

/* ---- layout: canvas + catalogue ---------------------------------------- */

.dsh-body {
    display: flex;
    align-items: flex-start;
    gap: var(--dsh-gap);
}

.dsh-canvas {
    position: relative;
    flex: 1 1 auto;
    min-width: 0;
}

/* ---- the grid ---------------------------------------------------------- */

.dsh-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(var(--dsh-cols), minmax(0, 1fr));
    grid-auto-rows: var(--dsh-row);
    gap: var(--dsh-gap);
}

/* decorative cell guides while editing */
.dsh-guides {
    position: absolute;
    inset: 0;
    display: grid;
    gap: var(--dsh-gap);
    pointer-events: none;
    z-index: 0;
}

.dsh-guide {
    border: 1px dashed var(--dsh-border);
    border-radius: var(--dsh-radius);
}

/* ---- tile ------------------------------------------------------------- */

/* NOTE: deliberately no `z-index` here.
   A positioned element with a z-index creates a stacking context, which would
   trap everything inside the tile — including a widget's `position: fixed`
   Bootstrap modal (z-index 1055) — underneath the modal backdrop that Bootstrap
   appends to <body> at z-index 1050. The modal would then render, look dimmed
   and swallow every click. Tiles stack above the guides by DOM order instead. */
.dsh-tile {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    background: var(--dsh-surface);
    border: 1px solid var(--dsh-border);
    border-radius: var(--dsh-radius);
    box-shadow: 0 1px 2px rgb(0 0 0 / .05);
    transition: box-shadow .15s ease, opacity .15s ease;
}

.dsh-tile:hover { box-shadow: 0 3px 10px rgb(0 0 0 / .08); }

.dsh-tile__head {
    display: flex;
    align-items: center;
    gap: .375rem;
    padding: .375rem .625rem;
    min-height: 2.25rem;
    background: var(--dsh-head-bg);
    border-bottom: 1px solid var(--dsh-border);
}

/* Ikona má stejnou barvu jako titulek vedle ní — jedna barva na hlavičku.
   Když ji chcete zpátky v akcentu, stačí color: var(--dsh-accent). */
.dsh-tile__icon { color: inherit; line-height: 1; }
.dsh-tile__grip { color: var(--dsh-muted); line-height: 1; cursor: grab; }

.dsh-tile__title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dsh-tile__tools {
    display: flex;
    align-items: center;
    gap: .125rem;
    margin-left: auto;
}

.dsh-tile__body {
    flex: 1 1 auto;
    min-height: 0;
    padding: var(--dsh-tile-pad);
    overflow: auto;
}

/* content that should touch the frame (tables, lists) */
.dsh-tile__body--flush { padding: 0; }

.dsh-tile--skeleton {
    border-style: dashed;
    background: linear-gradient(90deg,
        var(--dsh-head-bg) 25%, var(--dsh-surface) 37%, var(--dsh-head-bg) 63%);
    background-size: 400% 100%;
    animation: dsh-shimmer 1.4s ease infinite;
}

@keyframes dsh-shimmer {
    from { background-position: 100% 50%; }
    to   { background-position: 0 50%; }
}

/* ---- icon buttons ----------------------------------------------------- */

.dsh-iconbtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    border: 0;
    border-radius: .25rem;
    background: transparent;
    color: var(--dsh-muted);
    cursor: pointer;
}

.dsh-iconbtn:hover { background: rgb(0 0 0 / .06); color: var(--dsh-accent); }
.dsh-iconbtn--danger:hover { color: var(--dsh-danger); }

/* ---- edit mode -------------------------------------------------------- */

.dsh.is-editing .dsh-tile {
    cursor: grab;
    border-color: var(--dsh-accent);
    border-style: dashed;
}

/* The widget itself must not swallow the drag gesture. The stripes are there so
   the "dead" content reads as deliberate instead of looking like a broken widget. */
.dsh.is-editing .dsh-tile__body {
    pointer-events: none;
    user-select: none;
    opacity: .75;
    background-image: repeating-linear-gradient(
        45deg,
        transparent 0 8px,
        color-mix(in srgb, var(--dsh-accent) 5%, transparent) 8px 16px);
}

@supports not (background: color-mix(in srgb, red 10%, transparent)) {
    .dsh.is-editing .dsh-tile__body {
        background-image: repeating-linear-gradient(
            45deg, transparent 0 8px, rgb(13 110 253 / .05) 8px 16px);
    }
}

.dsh-tile.is-dragging { opacity: .35; }

.dsh-tile__resize {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: 1px;
    color: var(--dsh-accent);
    background: var(--dsh-surface);
    border-top-left-radius: .25rem;
    cursor: nwse-resize;
    z-index: 1;          /* above tile content, below the drag preview */
}

/* ---- drag preview + drop layer ---------------------------------------- */

.dsh-preview {
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8125rem;
    font-weight: 600;
    border-radius: var(--dsh-radius);
    pointer-events: none;
}

.dsh-preview.is-valid {
    border: 2px solid var(--dsh-ok);
    background: color-mix(in srgb, var(--dsh-ok) 12%, transparent);
    color: var(--dsh-ok);
}

.dsh-preview.is-invalid {
    border: 2px solid var(--dsh-danger);
    background: color-mix(in srgb, var(--dsh-danger) 12%, transparent);
    color: var(--dsh-danger);
}

/* Fallback for browsers without color-mix() */
@supports not (background: color-mix(in srgb, red 10%, transparent)) {
    .dsh-preview.is-valid   { background: rgb(25 135 84 / .12); }
    .dsh-preview.is-invalid { background: rgb(220 53 69 / .12); }
}

.dsh-droplayer {
    position: absolute;
    inset: 0;
    display: grid;
    gap: var(--dsh-gap);
    z-index: 4;
}

.dsh-cell { border-radius: var(--dsh-radius); }

/* ---- empty state ------------------------------------------------------ */

.dsh-empty {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    min-height: 12rem;
    color: var(--dsh-muted);
    text-align: center;
    pointer-events: auto;
}

/* ---- catalogue panel -------------------------------------------------- */

.dsh-catalog {
    flex: 0 0 20rem;
    max-width: 20rem;
    align-self: stretch;
    background: var(--dsh-surface);
    border: 1px solid var(--dsh-border);
    border-radius: var(--dsh-radius);
    overflow: hidden;
}

.dsh-catalog__head {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem .75rem;
    background: var(--dsh-head-bg);
    border-bottom: 1px solid var(--dsh-border);
}

.dsh-catalog__head .dsh-iconbtn { margin-left: auto; }

.dsh-catalog__hint {
    margin: 0;
    padding: .625rem .75rem;
    font-size: .8125rem;
    color: var(--dsh-muted);
}

.dsh-catalog__list {
    padding: 0 .75rem .75rem;
    max-height: 60vh;
    overflow-y: auto;
}

.dsh-catalog__group {
    font-size: .6875rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--dsh-muted);
    margin: .75rem 0 .375rem;
}

.dsh-card {
    display: flex;
    align-items: flex-start;
    gap: .5rem;
    padding: .5rem;
    margin-bottom: .375rem;
    border: 1px solid var(--dsh-border);
    border-radius: .375rem;
    background: var(--dsh-surface);
    cursor: grab;
}

.dsh-card:hover { border-color: var(--dsh-accent); }

.dsh-card.is-disabled {
    opacity: .5;
    cursor: not-allowed;
}

.dsh-catalog__foot {
    padding: .5rem .75rem .75rem;
    border-top: 1px solid var(--dsh-border);
}

.dsh-catalog__foot .dsh-catalog__hint { padding: 0; }

.dsh-card__icon { color: inherit; line-height: 1; padding-top: .125rem; }

.dsh-card__text { display: flex; flex-direction: column; min-width: 0; }
.dsh-card__title { font-size: .875rem; font-weight: 600; }
.dsh-card__desc { font-size: .75rem; color: var(--dsh-muted); }
.dsh-card__meta { font-size: .6875rem; color: var(--dsh-muted); margin-top: .125rem; }

.dsh-card__add {
    margin-left: auto;
    align-self: center;
    white-space: nowrap;
}

/* widget, který smí být na nástěnce jen jednou a už tam je */
.dsh-card__placed {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    margin-left: auto;
    align-self: center;
    white-space: nowrap;
    font-size: .75rem;
    color: var(--dsh-ok);
}

/* ---- settings dialog -------------------------------------------------- */

.dsh-modal { position: fixed; inset: 0; z-index: 1080; }

/* potvrzení musí být nad dialogem nastavení */
.dsh-modal--confirm { z-index: 1090; }
.dsh-modal--confirm:focus { outline: none; }


.dsh-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgb(0 0 0 / .35);
}

.dsh-modal__panel {
    position: relative;
    width: min(30rem, calc(100vw - 2rem));
    max-height: min(85vh, 44rem);
    margin: 6vh auto 0;
    display: flex;
    flex-direction: column;
    background: var(--dsh-surface);
    border-radius: .5rem;
    box-shadow: 0 1rem 3rem rgb(0 0 0 / .3);
    overflow: hidden;
}

/* POZOR na pořadí: obě šířkové varianty musí být AŽ ZA .dsh-modal__panel.
   Mají stejnou specificitu, takže když jsou před ním, přebije je width
   ze základního pravidla a dialog zůstane 30rem. (Přesně tohle se tu stalo
   — --narrow byl celou dobu bez účinku a nikdo si toho nevšiml.) */

.dsh-modal__panel--narrow { width: min(26rem, calc(100vw - 2rem)); }

/* Nastavení, jehož obsahem je seznam (např. Zkratky). V 30rem se dlouhé
   názvy položek lámou do tří řádků a dialog je nepřehledný. */
.dsh-modal__panel--wide { width: min(46rem, calc(100vw - 2rem)); }

.dsh-modal__head {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .625rem .875rem;
    background: var(--dsh-head-bg);
    border-bottom: 1px solid var(--dsh-border);
}

.dsh-modal__icon { color: inherit; line-height: 1; }
.dsh-modal__body { padding: .875rem; overflow-y: auto; }

.dsh-modal__foot {
    display: flex;
    justify-content: flex-end;
    gap: .5rem;
    padding: .625rem .875rem;
    border-top: 1px solid var(--dsh-border);
}

/* ---- size picker ------------------------------------------------------ */

.dsh-sizepicker {
    display: inline-grid;
    gap: 3px;
}

.dsh-sizepicker__cell {
    width: 1.5rem;
    height: 1.25rem;
    padding: 0;
    border: 1px solid var(--dsh-border);
    border-radius: 2px;
    background: var(--dsh-surface);
    cursor: pointer;
}

.dsh-sizepicker__cell:hover { border-color: var(--dsh-accent); }

.dsh-sizepicker__cell.is-on {
    background: var(--dsh-accent);
    border-color: var(--dsh-accent);
}

/* ---- responsive ------------------------------------------------------- */

@media (max-width: 1200px) {
    .dsh-catalog { flex-basis: 17rem; max-width: 17rem; }
}

@media (max-width: 900px) {
    /* Positional grids don't work on a phone: stack in reading order and
       hide the editing affordances. */
    .dsh-grid {
        display: flex !important;
        flex-direction: column;
        grid-template-rows: none !important;
    }

    .dsh-tile {
        grid-column: auto !important;
        grid-row: auto !important;
        min-height: 10rem;
    }

    .dsh-guides,
    .dsh-droplayer,
    .dsh-preview,
    .dsh-tile__resize,
    .dsh-cols { display: none !important; }

    .dsh-body { flex-direction: column; }

    .dsh-catalog {
        flex: 1 1 auto;
        max-width: none;
        width: 100%;
    }

    .dsh.is-editing .dsh-tile__body { pointer-events: auto; opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .dsh-tile, .dsh-tile--skeleton { transition: none; animation: none; }
}

/* ---- dark mode (Bootstrap 5.3 colour modes) --------------------------- */

[data-bs-theme="dark"] .dsh {
    --dsh-surface: var(--bs-body-bg);
    --dsh-border: var(--bs-border-color);
    --dsh-head-bg: var(--bs-secondary-bg);
}

[data-bs-theme="dark"] .dsh-iconbtn:hover { background: rgb(255 255 255 / .08); }

/* ---- print ------------------------------------------------------------ */

@media print {
    .dsh-toolbar, .dsh-tile__tools, .dsh-catalog, .dsh-guides { display: none !important; }
    .dsh-tile { break-inside: avoid; box-shadow: none; }
}

/* ============================================================================
   Načítání v dlaždici (WidgetSpinner.razor)
   ============================================================================ */

.dsh-nacitani {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    height: 100%;
    min-height: 3rem;
    padding: 1rem;
    color: var(--bs-secondary-color, #6c757d);
    font-size: .9em;
}

.dsh-nacitani__obal {
    position: relative;
    height: 100%;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.dsh-nacitani__obsah {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

/* Obnovování: obsah zůstane, jen zešedne. Žádný skok rozvržení. */
.dsh-nacitani__obsah.is-nacita {
    opacity: .45;
    transition: opacity .15s ease-out;
    pointer-events: none;
}

.dsh-nacitani__roh {
    position: absolute;
    top: .4rem;
    right: .4rem;
    z-index: 2;
    color: var(--bs-secondary-color, #6c757d);
}

/* Kdo si vypnul animace, nemá koukat na točící se kolečko. */
@media (prefers-reduced-motion: reduce) {
    .dsh-nacitani .spinner-border,
    .dsh-nacitani__roh .spinner-border {
        animation: none;
        border-right-color: currentColor;
        opacity: .6;
    }

    .dsh-nacitani__obsah.is-nacita { transition: none; }
}

/* Seznam položek v nastavení zkratek — ať dialog neroste do nekonečna. */
.zkratky-nastaveni__seznam {
    max-height: 18rem;
    overflow-y: auto;
    padding-right: .25rem;
}

/* Vybrané zkratky v nastavení — seznam s poli na název a popis. */
.zkratky-nastaveni__vybrane {
    max-height: 22rem;
    overflow-y: auto;
}

/* Skrytý <InputFile> pod vlastním tlačítkem Import. Ne display:none —
   to by prvek vyřadilo i z klávesnice a čteček obrazovky. */
.dsh-vizualne-skryto {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Hláška o exportu/importu v liště. */
.dsh-toolbar__zprava {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: .85em;
    color: var(--bs-success, #198754);
}

.dsh-toolbar__zprava.is-chyba { color: var(--bs-danger, #dc3545); }
