/* Container and layout */
.docx2html-container {
    background: #fafafa;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 18px 22px 26px;
    margin-top: 16px;
    box-shadow: 0 3px 10px rgba(0,0,0,.08);
    font-family: system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}

.docx2html-title {
    text-align: center;
    margin: 0 0 18px;
    color: #2c3e50;
    font-weight: 600;
    letter-spacing: .5px;
}

.docx2html-grid {
    display: grid;
    grid-template-columns: 340px 1fr 310px;
    gap: 16px;
}

.panel {
    background: #fff;
    border: 1px solid #e2e2e2;
    border-radius: 8px;
    padding: 14px 16px 18px;
    display: flex;
    flex-direction: column;
    min-height: 320px;
}

.panel h4 {
    margin: 0 0 10px;
    font-size: 15px;
    color: #34495e;
    font-weight: 600;
}

/* Upload Section */
.upload-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.file-label {
    font-size: 14px;
    font-weight: 600;
    color: #555;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#docxFile {
    padding: 7px 10px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 14px;
    background: #fff;
    cursor: pointer;
}

.drag-drop-zone {
    border: 2px dashed #b9c3d1;
    border-radius: 8px;
    text-align: center;
    padding: 18px 10px;
    font-size: 13px;
    color: #607080;
    background: #f4f7fa;
    transition: background .2s, border-color .2s;
}
.drag-drop-zone.dragover {
    background: #ecf5ff;
    border-color: #3498db;
}

/* Buttons */
#docx2HtmlBtn,
.convert-btn,
.download-btn,
.clear-btn {
    border: none;
    border-radius: 6px;
    padding: 9px 14px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    letter-spacing: .3px;
}

#docx2HtmlBtn {
    background: linear-gradient(90deg,#3498db,#4aa3e9);
    color: #fff;
    margin-bottom: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,.15);
}
#docx2HtmlBtn:hover {
    filter: brightness(1.08);
}

.convert-btn {
    background: #2980b9;
    color: #fff;
}
.convert-btn:disabled {
    background: #7f8c8d;
    cursor: not-allowed;
}

.download-btn {
    background: #27ae60;
    color: #fff;
}
.download-btn:disabled {
    background: #95af9f;
    cursor: not-allowed;
}
.clear-btn {
    background: #e74c3c;
    color: #fff;
}

.actions-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 8px;
}

/* Options */
.options-group {
    margin-top: 4px;
    background: #f7f9fb;
    border: 1px solid #d9e2ea;
    border-radius: 8px;
    padding: 10px 12px;
}
.options-group h4 {
    margin-top: 0;
    font-size: 14px;
}
.checkbox-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    margin-bottom: 4px;
}
.checkbox-row input {
    cursor: pointer;
}

/* Progress Bar */
.progress-wrapper {
    width: 100%;
    background: #eef2f5;
    border-radius: 6px;
    overflow: hidden;
    height: 12px;
    margin-top: 4px;
}
.progress-bar {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg,#4aa3e9,#3498db);
    transition: width .3s ease;
}

/* Messages */
.messages {
    font-size: 12.5px;
    color: #555;
    min-height: 20px;
    line-height: 1.4;
}

/* Preview */
.preview-panel {
    position: relative;
}
.preview-surface {
    flex: 1;
    background: #fff;
    border: 1px solid #d5d5d5;
    border-radius: 6px;
    padding: 14px 16px;
    overflow: auto;
    max-height: 500px;
    font-size: 14px;
}
.preview-surface img {
    max-width: 100%;
    height: auto;
}

/* Comments */
.comments-panel {
    max-height: 500px;
    overflow: auto;
}
.comments-list {
    margin: 0;
    padding-left: 18px;
    list-style: decimal;
    font-size: 13px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.comments-list li {
    background: #f0f5fa;
    border: 1px solid #d1dde8;
    padding: 8px 10px;
    border-radius: 6px;
    line-height: 1.35;
}
.comment-meta {
    display: block;
    font-size: 11px;
    color: #607080;
    margin-bottom: 4px;
}
.comment-link {
    color: #1f6fb2;
    text-decoration: none;
    font-weight: 600;
    font-size: 11px;
}
.comment-link:hover {
    text-decoration: underline;
}

/* Tag inserted markers */
.comment-marker {
    background: #ffe9b3;
    color: #b45d00;
    padding: 1px 4px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    margin-left: 4px;
}

/* Responsive */
@media (max-width: 1180px) {
    .docx2html-grid {
        grid-template-columns: 1fr 1fr;
    }
    .comments-panel {
        grid-column: 1 / -1;
    }
}
@media (max-width: 760px) {
    .docx2html-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility & Scrollbar (optional aesthetic) */
.preview-surface::-webkit-scrollbar,
.comments-panel::-webkit-scrollbar {
    width: 10px;
}
.preview-surface::-webkit-scrollbar-track,
.comments-panel::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 6px;
}
.preview-surface::-webkit-scrollbar-thumb,
.comments-panel::-webkit-scrollbar-thumb {
    background: #b9c3cd;
    border-radius: 6px;
}
.preview-surface::-webkit-scrollbar-thumb:hover,
.comments-panel::-webkit-scrollbar-thumb:hover {
    background: #9aa6b2;
}