/* ================================================================
   StudentOS — patches32.css
   1.  Whiteboard grid CSS overlay
   2.  Whiteboard: resizable image overlay
   3.  Notes: color-dot picker popup
   4.  Mind-map: context menu
   5.  Whiteboard: fullscreen helper
   ================================================================ */

/* ================================================================
   1.  GRID OVERLAY
   ================================================================ */

#wb-grid-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    display: none;
    z-index: 1;
    background-image:
        linear-gradient(rgba(128,128,128,.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(128,128,128,.18) 1px, transparent 1px);
    background-size: 30px 30px;
}

#wb-grid-overlay.active {
    display: block;
}

/* ================================================================
   2.  RESIZABLE IMAGE OVERLAY
   ================================================================ */

#p32-img-overlay {
    position: absolute;
    display: none;
    z-index: 10;
    cursor: move;
    user-select: none;
    touch-action: none;
    border: 2px dashed var(--accent, #6366f1);
    border-radius: 4px;
    box-sizing: border-box;
}

#p32-img-overlay.active {
    display: block;
}

#p32-img-preview {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: fill;
    pointer-events: none;
    border-radius: 2px;
}

.p32-img-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--accent, #6366f1);
    border: 2px solid #fff;
    border-radius: 50%;
    z-index: 11;
    touch-action: none;
}

.p32-img-nw { top: -6px;    left: -6px;   cursor: nwse-resize; }
.p32-img-ne { top: -6px;    right: -6px;  cursor: nesw-resize; }
.p32-img-sw { bottom: -6px; left: -6px;   cursor: nesw-resize; }
.p32-img-se { bottom: -6px; right: -6px;  cursor: nwse-resize; }

.p32-img-toolbar {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 4px;
    white-space: nowrap;
    pointer-events: all;
}

.p32-img-place-btn,
.p32-img-cancel-btn {
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid var(--glass-border, rgba(255,255,255,.1));
    font-size: .7rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity .15s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.p32-img-place-btn {
    background: var(--accent, #6366f1);
    color: #fff;
}

.p32-img-cancel-btn {
    background: var(--glass-panel, rgba(255,255,255,.06));
    color: var(--text-muted, #94a3b8);
}

.p32-img-place-btn:hover  { opacity: .85; }
.p32-img-cancel-btn:hover { opacity: .85; }

/* ================================================================
   3.  NOTE COLOR-DOT PICKER POPUP
   ================================================================ */

#p32-note-color-picker {
    position: fixed;
    z-index: 9999;
    display: none;
    background: var(--bg-color, #09090b);
    border: 1px solid var(--glass-border, rgba(255,255,255,.1));
    border-radius: 10px;
    padding: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,.4);
    gap: 6px;
    flex-wrap: wrap;
    width: 152px;
}

#p32-note-color-picker.visible {
    display: flex;
}

.p32-note-color-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform .12s, border-color .12s;
    padding: 0;
    flex-shrink: 0;
}

.p32-note-color-dot:hover {
    transform: scale(1.25);
    border-color: #fff;
}

/* The small dot shown inside each note sidebar item */
.p32-note-dot {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: 6px;
    margin-right: 2px;
    transition: transform .15s;
    outline: none;
}

.p32-note-dot:hover {
    transform: scale(1.5);
}

/* ================================================================
   4.  MIND-MAP CONTEXT MENU
   ================================================================ */

.p32-mm-ctx {
    position: fixed;
    z-index: 9999;
    display: none;
    background: var(--bg-color, #09090b);
    border: 1px solid var(--glass-border, rgba(255,255,255,.1));
    border-radius: 10px;
    padding: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,.45);
    min-width: 160px;
}

.p32-mm-ctx.visible {
    display: block;
}

.p32-mm-ctx-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 7px 12px;
    border: none;
    background: transparent;
    color: var(--text-main, #f8fafc);
    font-size: .8rem;
    cursor: pointer;
    border-radius: 7px;
    text-align: left;
    transition: background .12s;
}

.p32-mm-ctx-item:hover {
    background: var(--glass-hover, rgba(255,255,255,.08));
}

.p32-mm-ctx-danger {
    color: #f87171;
}

.p32-mm-ctx-danger:hover {
    background: rgba(239,68,68,.12);
}

.p32-mm-ctx-divider {
    height: 1px;
    background: var(--glass-border, rgba(255,255,255,.08));
    margin: 3px 0;
}

/* ================================================================
   5.  WHITEBOARD FULLSCREEN
   ================================================================ */

#view-whiteboard:fullscreen,
#view-whiteboard:-webkit-full-screen,
#view-whiteboard:-moz-full-screen {
    padding: 12px;
    background: var(--bg-color, #09090b);
    max-width: 100%;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 9999;
}

/* Make sure the canvas fills properly in fullscreen */
#view-whiteboard:fullscreen #wb-container,
#view-whiteboard:-webkit-full-screen #wb-container,
#view-whiteboard:-moz-full-screen #wb-container {
    flex: 1;
    min-height: 0;
}

/* The mind-map edit modal header reflects "Edit" not "Add" */
#modal-mm-edit h3 {
    color: var(--text-main, #f8fafc);
}