.excel-container{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:1.5rem}.excel-header{display:flex;justify-content:space-between;align-items:center;padding:1rem;border-bottom:1px solid var(--border);flex-wrap:wrap;gap:.75rem}.file-info{display:flex;align-items:center;gap:.75rem}.file-name{font-weight:600;word-break:break-all}.unsaved-badge{background:#fbbf24;color:#78350f;font-size:.7rem;font-weight:600;padding:.2rem .5rem;border-radius:9999px}.header-actions{display:flex;gap:.5rem;flex-wrap:wrap}.btn-small{padding:.5rem .75rem;font-size:.875rem}.edit-notice{padding:.75rem 1rem;background:#fef3c7;color:#92400e;font-size:.875rem;border-bottom:1px solid var(--border)}.sheet-tabs{display:flex;overflow-x:auto;border-bottom:1px solid var(--border);background:var(--bg)}.sheet-tab{padding:.75rem 1rem;background:transparent;border:none;border-bottom:3px solid transparent;cursor:pointer;font-size:.875rem;white-space:nowrap;transition:all .2s ease}.sheet-tab:hover{background:var(--card-bg)}.sheet-tab.active{background:var(--card-bg);border-bottom-color:var(--primary);font-weight:600}.search-bar{display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;border-bottom:1px solid var(--border)}.search-input{flex:1;padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;font-size:.875rem;background:var(--bg)}.search-count{font-size:.75rem;color:var(--text-muted);white-space:nowrap}.table-container{overflow-x:auto;max-height:500px;overflow-y:auto}.excel-table{width:100%;border-collapse:collapse;font-size:.875rem}.excel-table th,.excel-table td{padding:.5rem .75rem;text-align:left;border:1px solid var(--border);white-space:nowrap;max-width:300px;overflow:hidden;text-overflow:ellipsis}.excel-table .header-row th{background:var(--bg);font-weight:600;position:sticky;top:0;z-index:1}.excel-table tr:hover td{background:#3b82f60d}.excel-table td.editable{cursor:text;background:var(--color-warning-subtle);transition:background .15s ease}.excel-table td.editable:focus{outline:2px solid var(--primary);outline-offset:-2px;background:var(--color-bg-card)}.table-footer{padding:.75rem 1rem;text-align:center;font-size:.875rem;color:var(--text-muted);border-top:1px solid var(--border);background:var(--bg)}.stats-bar{display:flex;justify-content:center;gap:1.5rem;padding:.75rem 1rem;font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border);background:var(--bg)}.error-message{text-align:center;padding:2rem;background:var(--color-error-subtle);border-radius:12px;color:var(--color-error);margin-bottom:1.5rem}.error-message p{margin-bottom:1rem}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background:var(--card-bg);border-radius:16px;padding:1.5rem;max-width:480px;width:100%;box-shadow:0 20px 60px #0000004d}.modal-content h3{margin-bottom:1rem;font-size:1.125rem}.modal-content p{margin-bottom:.75rem;color:var(--text-muted)}.warning-list{margin:1rem 0;padding-left:1.25rem;font-size:.875rem}.warning-list li{margin-bottom:.5rem;line-height:1.4}.warning-list li.format-warning{background:#ffc10726;border:1px solid rgba(255,193,7,.4);border-radius:6px;padding:.5rem .75rem;margin-left:-1rem;list-style:none}.modal-actions{display:flex;gap:.75rem;margin-top:1.5rem;justify-content:flex-end}.privacy-note{text-align:center;font-size:.875rem;color:var(--text-muted);padding:1rem;background:var(--card-bg);border-radius:8px}.engine-loading,.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem;text-align:center;color:var(--text-muted);gap:1rem}.loading-spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}