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#32b08e;--header-bg: #141414;--divider-color: #2d2d2d;--scrollbar-bg: #242424;--scrollbar-thumb: #444444;--color-success: #27ae60;--color-warning: #e67e22;--color-error: #e74c3c;--color-info: #3EC6A0;--color-google: #4285f4}body{background:var(--bg-primary);color:var(--text-primary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--scrollbar-bg)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.modal-backdrop{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:200}.modal-content{background:var(--panel-bg);border-radius:12px;padding:24px;max-width:400px;width:90%;box-shadow:0 12px 40px #0000004d;position:relative}.modal-content h3{margin:0 0 16px;color:var(--text-primary)}.modal-close{position:absolute;top:12px;right:12px;background:none;border:none;cursor:pointer;color:var(--text-muted);font-size:1rem;padding:4px 8px}.modal-close:hover{color:var(--text-primary)}.btn-close-modal{width:100%;padding:8px;background:var(--accent-color);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.85rem;font-weight:600}.btn-close-modal:hover{opacity:.85}.btn-close-modal:disabled{opacity:.5;cursor:not-allowed}.sign-in-prompt-modal{max-width:380px;text-align:center}.sign-in-prompt-modal p{margin:0 0 20px;font-size:.87rem;color:var(--text-secondary);line-height:1.55}.sign-in-prompt-icon{font-size:2rem;color:var(--accent-color);margin-bottom:12px}.sign-in-prompt-actions{display:flex;flex-direction:column;gap:8px}.sign-in-prompt-actions .btn-google{background:var(--input-bg);color:var(--text-primary);border:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:10px 16px;border-radius:6px;font-size:.9rem;font-weight:500;cursor:pointer;transition:border-color .2s,background .2s}.sign-in-prompt-actions .btn-google:hover{border-color:var(--color-google);background:var(--hover-bg)}.sign-in-prompt-actions .btn-cancel-sign-in{background:none;border:none;color:var(--text-muted);font-size:.85rem;cursor:pointer;padding:6px;border-radius:4px}.sign-in-prompt-actions .btn-cancel-sign-in:hover{color:var(--text-primary)}.empty-state{padding:12px;text-align:center;color:var(--text-muted);font-size:.8rem}.source-options{display:flex;gap:12px}.source-btn{flex:1;padding:20px;border:1px solid var(--border-color);border-radius:8px;background:var(--input-bg);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-primary);font-size:.9rem;transition:border-color .2s,background .2s}.source-btn i{font-size:1.5rem;color:var(--accent-color)}.source-btn:hover{border-color:var(--accent-color);background:var(--hover-bg)}.source-btn.locked{opacity:.6;border-style:dashed;position:relative}.source-btn.locked .lock-icon{font-size:.85rem;color:var(--text-muted)}.source-btn.locked:hover{border-color:var(--accent-color);opacity:.85}.source-btn.google-signin-btn{border-style:dashed}.source-btn.google-signin-btn .signin-hint{font-size:.7rem;color:var(--text-muted);font-weight:400}.drive-picker{max-width:500px}.drive-picker .drive-breadcrumbs{display:flex;align-items:center;gap:4px;padding:8px 4px;margin-bottom:8px;font-size:.82rem;flex-wrap:wrap}.drive-picker .drive-breadcrumbs .breadcrumb-item{color:var(--accent-color);cursor:pointer;padding:2px 4px;border-radius:4px}.drive-picker .drive-breadcrumbs .breadcrumb-item:hover:not(.active){background:var(--hover-bg);text-decoration:underline}.drive-picker .drive-breadcrumbs .breadcrumb-item.active{color:var(--text-primary);font-weight:600;cursor:default}.drive-picker .drive-breadcrumbs .breadcrumb-separator{font-size:.6rem;color:var(--text-muted)}.drive-picker .select-all-row{margin-bottom:6px}.drive-picker .btn-select-all{background:none;border:none;cursor:pointer;color:var(--text-secondary);font-size:.8rem;padding:4px 2px;display:inline-flex;align-items:center;gap:6px}.drive-picker .btn-select-all:hover{color:var(--accent-color)}.drive-picker .btn-select-all .fa{font-size:.85rem}.drive-picker .drive-file-list{max-height:350px;overflow-y:auto;border:1px solid var(--border-color);border-radius:6px;margin-bottom:12px}.drive-picker .folder-item{font-weight:600}.drive-picker .folder-item .fa-folder{color:#f6b93b}.drive-picker .folder-item .folder-arrow{margin-left:auto;font-size:.7rem;color:var(--text-muted)}.drive-picker .loading{padding:20px;text-align:center;color:var(--text-muted)}.classroom-picker{max-width:480px}.classroom-picker .loading{padding:24px;text-align:center;color:var(--text-muted);font-size:.85rem;display:flex;align-items:center;justify-content:center;gap:8px}.classroom-header{display:flex;align-items:center;gap:8px;margin-bottom:16px}.classroom-header h3{margin:0}.classroom-header .btn-icon{padding:4px 8px;font-size:.9rem;color:var(--text-muted);background:none;border:none;cursor:pointer;border-radius:4px}.classroom-header .btn-icon:hover{background:var(--hover-bg);color:var(--text-primary)}.classroom-list{max-height:350px;overflow-y:auto;border:1px solid var(--border-color);border-radius:6px}.classroom-item{display:flex;align-items:center;gap:10px;padding:10px 12px;cursor:pointer;font-size:.85rem;color:var(--text-primary);border-bottom:1px solid var(--border-color)}.classroom-item:last-child{border-bottom:none}.classroom-item:hover{background:var(--hover-bg)}.classroom-item>i:first-child{color:var(--accent-color);width:20px;text-align:center}.classroom-item-text{flex:1;display:flex;flex-direction:column;gap:2px;min-width:0}.classroom-item-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.classroom-item-sub{font-size:.75rem;color:var(--text-muted)}.classroom-arrow{font-size:.7rem;color:var(--text-muted)}.classroom-summary{border:1px solid var(--border-color);border-radius:8px;padding:12px;margin-bottom:16px;background:var(--input-bg)}.summary-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;font-size:.82rem}.summary-row:not(:last-child){border-bottom:1px solid var(--border-color)}.summary-label{color:var(--text-muted);font-weight:500}.summary-value{color:var(--text-primary);font-weight:600;text-align:right}.summary-value.rubric-found{color:var(--color-success)}.summary-value.rubric-missing{color:var(--color-warning)}.summary-value.summary-desc{font-weight:400;font-size:.78rem}