/* Editor Toolbar & Main Writing Canvas */

/* Formatting Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    max-width: 100%;
}

.toolbar::-webkit-scrollbar {
    display: none;
}

.toolbar-divider {
    width: 1px;
    height: 18px;
    background: var(--panel-border);
    margin: 0 4px;
    flex-shrink: 0;
}

.toolbar select,
.toolbar input[type="color"] {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--panel-border);
    color: var(--text-main);
    height: 30px;
    padding: 0 6px;
    border-radius: 6px;
    font-size: 0.82rem;
    outline: none;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.toolbar select:hover {
    border-color: var(--primary-accent);
}

.toolbar input[type="color"] {
    width: 30px;
    padding: 2px;
    flex-shrink: 0;
}

.toolbar .icon-btn {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
}

/* Editor Scroll Container */
#editor-container {
    flex: 1;
    overflow-y: auto;
    display: flex;
    justify-content: center;
    padding: 40px 20px 80px 20px;
    scroll-behavior: smooth;
}

/* Document Paper / Sheet */
.page-sheet {
    background: var(--sheet-bg);
    color: var(--sheet-text-color);
    max-width: var(--sheet-max-width);
    width: 100%;
    min-height: 1000px;
    padding: var(--sheet-padding);
    font-family: var(--sheet-font-family);
    font-size: var(--sheet-font-size);
    line-height: var(--sheet-line-height);
    box-shadow: var(--sheet-shadow);
    border-radius: var(--sheet-border-radius);
    outline: none;
    user-select: text;
    transition: background 0.3s ease, color 0.3s ease, max-width 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}

/* Page Modes */
.page-sheet.mode-a4 {
    width: 794px;
    min-height: 1123px;
    border: 1px solid var(--panel-border);
}

.page-sheet.mode-continuous {
    width: 100%;
    min-height: 80vh;
    border-radius: 12px;
}

.page-sheet.mode-minimal {
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
    padding: 40px 0;
}

/* Placeholder text when empty */
.page-sheet:empty::before {
    content: attr(data-placeholder);
    color: rgba(148, 163, 184, 0.4);
    pointer-events: none;
    display: block;
}

/* Rich Text Content Formatting */
.page-sheet h1 {
    font-size: 2em;
    margin-bottom: 0.6em;
    font-weight: 700;
}

.page-sheet h2 {
    font-size: 1.5em;
    margin-top: 1em;
    margin-bottom: 0.5em;
    font-weight: 600;
}

.page-sheet h3 {
    font-size: 1.25em;
    margin-top: 0.8em;
    margin-bottom: 0.4em;
    font-weight: 600;
}

.page-sheet p {
    margin-bottom: 1em;
}

.page-sheet blockquote {
    border-left: 4px solid var(--primary-accent);
    padding-left: 16px;
    margin: 16px 0;
    font-style: italic;
    color: var(--text-muted);
}

.page-sheet ul, .page-sheet ol {
    margin: 1em 0;
    padding-left: 28px;
}

.page-sheet img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px auto;
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Custom Scrollbar for Editor */
#editor-container::-webkit-scrollbar {
    width: 8px;
}

#editor-container::-webkit-scrollbar-track {
    background: transparent;
}

#editor-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

#editor-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Responsive Media Queries for Mobile & Tablet Writing Canvas */
@media (max-width: 768px) {
    .toolbar {
        width: 100%;
        order: 3;
        padding-top: 6px;
        border-top: 1px solid var(--panel-border);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        justify-content: flex-start;
    }

    #editor-container {
        padding: 12px 8px 60px 8px !important;
    }

    .page-sheet,
    .page-sheet.mode-a4,
    .page-sheet.mode-continuous,
    .page-sheet.mode-minimal {
        width: 100% !important;
        max-width: 100% !important;
        min-height: 80vh !important;
        padding: 20px 14px !important;
        border-radius: 8px !important;
    }
}