/* ================================================================
   StudentOS — patches58.css
   1.  Formula block — neutralise ALL accent-coloured internal
       elements so the block looks identical to every other
       .p19-ws-block (border-left already fixed by patches57.css;
       this covers the expression chip and the result panel).
   2.  Flashcard star button — style for the injected star toggle
       in the study header and card-list rows.
   3.  Whiteboard section — belt-and-braces hide of every whiteboard-
       related settings node that may have survived earlier patches.
   ================================================================ */

/* ================================================================
   1.  FORMULA BLOCK — UNIFORM INTERNAL COLOURS
       patches19.css colours the expression chip and the result
       panel with var(--accent), making formula blocks stand out.
       Override all of them to use neutral glass colours.
   ================================================================ */

/* Expression chip (the monospace formula string) */
.p19-ws-formula-expr {
    color:        var(--text-muted)    !important;
    background:   var(--glass-hover)   !important;
    border-color: var(--glass-border)  !important;
}

/* Result panel container */
.p19-ws-result {
    background:   var(--glass-hover)   !important;
    border-color: var(--glass-border)  !important;
}

/* Result value (the large computed number) */
.p19-ws-result-val {
    color: var(--text-main) !important;
}

/* Variable symbol labels */
.p19-ws-var-sym {
    color: var(--text-muted) !important;
}

/* Belt-and-braces border-left fix (also in patches57.css) */
.p19-ws-block.formula-block {
    border-left-width: 1.5px         !important;
    border-left-color: var(--glass-border) !important;
    border-left-style: solid         !important;
}

/* ================================================================
   2.  FLASHCARD — STAR BUTTON (study header + card-list rows)
   ================================================================ */

/* Star button in the study-view top bar */
#p58-study-star-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1.5px solid var(--glass-border);
    background: var(--glass-panel);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    transition: color .15s, border-color .15s, background .15s;
    flex-shrink: 0;
}
#p58-study-star-btn:hover {
    border-color: #fbbf24;
    color: #fbbf24;
}
#p58-study-star-btn.starred {
    color: #fbbf24;
    border-color: #fbbf24;
    background: rgba(251,191,36,.12);
}

/* Star toggle button inside each card-list row */
.p58-card-star-btn {
    color: var(--text-muted);
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    font-size: .75rem;
    line-height: 1;
    transition: color .15s;
}
.p58-card-star-btn:hover,
.p58-card-star-btn.starred {
    color: #fbbf24;
}

/* ================================================================
   3.  WHITEBOARD SETTINGS SECTION — BELT-AND-BRACES HIDE
       Hides every known container for whiteboard settings,
       whether placed by patches46, patches48, or patches53.
   ================================================================ */

#p48-whiteboard-section,
#p53-wb-appearance-section {
    display: none !important;
}

/* Hide the "Whiteboard Defaults" sub-label and its following rows
   if patches48 failed to extract them from #p46-widgets-section. */
#p46-widgets-section .p46-sub-label,
#p46-widgets-section .p46-sub-label ~ * {
    display: none !important;
}