:root{--bg-page: #f5f6f8;--bg-card: #ffffff;--bg-header: #f0f1f3;--text-main: #1a1a1a;--text-muted: #666;--text-faint: #999;--border: #e5e5e5;--border-light: #eee;--accent: #2563eb;--accent-text: #ffffff;--danger: #dc2626;--row-hover: #f5f8ff;--input-bg: #ffffff}[data-theme=dark]{--bg-page: #14161a;--bg-card: #1e2126;--bg-header: #262a30;--text-main: #e8e8e8;--text-muted: #a0a0a0;--text-faint: #777;--border: #33373d;--border-light: #2a2d33;--accent: #3b82f6;--accent-text: #ffffff;--danger: #f87171;--row-hover: #262c38;--input-bg: #262a30}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg-page);color:var(--text-main);transition:background .15s,color .15s}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-form{background:var(--bg-card);padding:32px;border-radius:12px;box-shadow:0 2px 12px #00000014;width:320px;display:flex;flex-direction:column;gap:10px}.login-form h1{margin:0}.subtitle{color:var(--text-muted);margin:0 0 12px}.login-form input{padding:10px;border:1px solid var(--border);border-radius:8px;font-size:15px;background:var(--input-bg);color:var(--text-main)}.login-form button{padding:10px;border:none;border-radius:8px;background:var(--accent);color:var(--accent-text);font-size:15px;cursor:pointer}.error{color:var(--danger);font-size:14px}.app-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:var(--bg-card);border-bottom:1px solid var(--border);flex-wrap:wrap;gap:10px}.header-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.add-btn{background:var(--accent);color:var(--accent-text);border:none;border-radius:6px;padding:8px 14px;cursor:pointer;font-size:14px}.secondary-btn{background:none;border:1px solid var(--border);color:var(--text-main);border-radius:6px;padding:8px 14px;cursor:pointer;font-size:14px}.secondary-btn:disabled{opacity:.6;cursor:default}.icon-btn{background:none;border:1px solid var(--border);border-radius:6px;width:36px;height:36px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center}.logout-btn{background:none;border:1px solid var(--border);color:var(--text-main);border-radius:6px;padding:6px 12px;cursor:pointer}.import-banner{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--bg-header);border-bottom:1px solid var(--border);padding:10px 20px;font-size:14px}.table-wrap{overflow-x:auto;padding:16px}.plots-table{width:100%;border-collapse:collapse;background:var(--bg-card);border-radius:8px;overflow:hidden;font-size:14px}.plots-table th{text-align:left;padding:10px 12px;background:var(--bg-header);border-bottom:2px solid var(--border);white-space:nowrap}.plots-table td{padding:8px 12px;border-bottom:1px solid var(--border-light);white-space:nowrap}.plot-row{cursor:pointer}.plot-row:hover{background:var(--row-hover)}.empty-state{padding:40px;text-align:center;color:var(--text-faint)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}.modal-card{background:var(--bg-card);border-radius:12px;width:640px;max-width:100%;max-height:90vh;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border-light)}.close-btn{background:none;border:none;font-size:22px;cursor:pointer;color:var(--text-muted)}.tabs{display:flex;gap:4px;padding:8px 20px 0;overflow-x:auto}.tab{border:none;background:none;padding:8px 12px;cursor:pointer;border-radius:6px 6px 0 0;color:var(--text-muted);white-space:nowrap}.tab.active{background:var(--bg-header);color:var(--text-main);font-weight:600}.modal-body{padding:16px 20px;overflow-y:auto;flex:1}.field-row{display:flex;flex-direction:column;gap:4px;margin-bottom:12px;font-size:13px;color:var(--text-muted)}.field-row input{padding:8px;border:1px solid var(--border);border-radius:6px;font-size:14px;color:var(--text-main);background:var(--input-bg)}.modal-footer{padding:12px 20px;border-top:1px solid var(--border-light);display:flex;justify-content:flex-end}.modal-footer button{background:var(--accent);color:var(--accent-text);border:none;padding:8px 16px;border-radius:6px;cursor:pointer}.history-list,.comments-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.history-list li,.comments-list li{font-size:14px;border-bottom:1px solid var(--border-light);padding-bottom:8px}.meta{font-size:12px;color:var(--text-faint);margin-top:2px}.comment-input{display:flex;gap:8px;margin-top:12px}.comment-input textarea{flex:1;padding:8px;border:1px solid var(--border);border-radius:6px;resize:vertical;min-height:40px;background:var(--input-bg);color:var(--text-main)}.comment-input button{background:var(--accent);color:var(--accent-text);border:none;padding:0 16px;border-radius:6px;cursor:pointer}@media (max-width: 640px){.modal-card{width:100%}.plots-table{font-size:13px}}