*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #c3002f;--secondary: #242424;--bg: #f5f6fa;--surface: #ffffff;--border: #dde1ea;--text: #1a1a2e;--muted: #6b7280;--green: #3aa86e;--red: #c3002f;--radius: 8px;--shadow: 0 2px 8px rgba(0,0,0,.08)}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.layout{display:flex;min-height:100vh}.sidebar{width:260px;min-width:260px;background:var(--secondary);color:#fff;display:flex;flex-direction:column;padding:24px 16px;gap:20px}.sidebar-logo{width:140px;object-fit:contain}.sidebar h2{font-size:1rem;font-weight:700;color:#e5e7eb}.sidebar p{font-size:.8rem;color:#9ca3af;line-height:1.6}.sidebar a{color:var(--primary)}.main{flex:1;display:flex;flex-direction:column;min-width:0}.tab-bar{background:var(--surface);border-bottom:1px solid var(--border);display:flex;gap:0}.tab-btn{padding:14px 28px;border:none;background:transparent;color:var(--muted);font-size:.95rem;font-weight:500;cursor:pointer;border-bottom:3px solid transparent;transition:all .2s;display:flex;align-items:center;gap:8px}.tab-btn:hover{color:var(--text)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.page{padding:32px;flex:1}.page-title{text-align:center;font-size:1.8rem;font-weight:700;margin-bottom:24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:var(--radius);border:none;font-size:.9rem;font-weight:600;cursor:pointer;transition:opacity .2s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}.btn:hover:not(:disabled){opacity:.85}.file-upload{display:flex;flex-direction:column;gap:12px}.file-upload-title{font-size:.95rem;font-weight:600;color:var(--text)}.file-upload-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:2px dashed var(--border);border-radius:var(--radius);padding:48px 32px;cursor:pointer;transition:border-color .2s,background 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input{display:none}.upload-icon{font-size:3rem;margin-bottom:12px}.upload-zone h3{font-size:1.1rem;margin-bottom:6px}.upload-zone p{color:var(--muted);font-size:.85rem}.filters{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:20px}.filter-group{flex:1;min-width:220px}.filter-group label{display:block;font-size:.82rem;font-weight:600;margin-bottom:6px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.plotly-wrapper{width:100%}.popover-btn{background:none;border:1.5px solid var(--border);border-radius:20px;padding:4px 14px;font-size:.82rem;color:var(--muted);cursor:pointer}.popover-panel{position:relative;background:#fffdf0;border:1px solid #f0e68c;border-radius:var(--radius);padding:16px;margin-top:10px;font-size:.88rem;line-height:1.7}.popover-panel h3{font-size:1rem;margin-bottom:6px}.popover-panel p{color:#444}.popover-panel+.popover-panel{margin-top:8px}.diff-table-wrapper{overflow-x:auto}.diff-table{border-collapse:collapse;width:100%;font-size:.88rem}.diff-table th,.diff-table td{border:1px solid var(--border);padding:8px 14px;text-align:center;white-space:nowrap}.diff-table th{background:#f0f1f5;font-weight:600}.diff-table td.plus{background:var(--green);color:#fff;font-weight:700}.diff-table td.minus{background:var(--red);color:#fff;font-weight:700}.preview-table-wrapper{overflow-x:auto;max-height:420px}.preview-table{border-collapse:collapse;width:100%;font-size:.85rem}.preview-table th,.preview-table td{border:1px solid var(--border);padding:7px 12px;text-align:right;white-space:nowrap}.preview-table th{background:#f0f1f5;text-align:left;font-weight:600;position:sticky;top:0;z-index:1}.preview-table td:first-child{text-align:left;font-weight:600}.alert{padding:12px 18px;border-radius:var(--radius);margin-bottom:16px;font-size:.9rem}.alert-info{background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8}.alert-warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e}.alert-error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}.spinner{display:inline-block;width:20px;height:20px;border:3px solid #e5e7eb;border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.shell{display:flex;flex-direction:column;min-height:100vh}.top-navbar{position:sticky;top:0;z-index:200;display:flex;align-items:center;height:52px;background:var(--secondary);box-shadow:0 2px 6px #0000002e;padding:0 16px}.hamburger-btn{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;flex-shrink:0;width:36px;height:36px;background:none;border:none;border-radius:var(--radius);cursor:pointer;padding:0;transition:background .15s}.hamburger-btn:hover{background:#ffffff1f}.hamburger-btn span{display:block;width:20px;height:2px;background:#e5e7eb;border-radius:2px}.top-navbar-title{flex:1;text-align:center;font-size:1rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#f3f4f6;pointer-events:none;-webkit-user-select:none;user-select:none}.top-navbar-spacer{flex-shrink:0;width:36px}.top-navbar-role{flex-shrink:0;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#f3f4f6;background:var(--primary);border-radius:20px;padding:3px 10px;white-space:nowrap}.shell-content{flex:1;display:flex;flex-direction:column}.sidebar-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:400;background:#00000059;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.app-sidebar{position:fixed;top:0;left:0;z-index:500;width:260px;height:100vh;background:var(--secondary);color:#fff;display:flex;flex-direction:column;box-shadow:4px 0 16px #00000040;animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(-100%)}to{transform:translate(0)}}.app-sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:18px 16px 14px;border-bottom:1px solid rgba(255,255,255,.1)}.app-sidebar-title{font-size:1rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#e5e7eb}.sidebar-close-btn{background:none;border:none;color:#9ca3af;font-size:1.1rem;cursor:pointer;line-height:1;padding:4px 6px;border-radius:4px;transition:color .15s,background .15s}.sidebar-close-btn:hover{color:#fff;background:#ffffff1a}.app-sidebar-nav{flex:1;overflow-y:auto;padding:12px 8px;display:flex;flex-direction:column;gap:4px}.sidebar-nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 14px;background:none;border:none;border-radius:var(--radius);color:#d1d5db;font-size:.95rem;text-align:left;cursor:pointer;transition:background .15s,color .15s}.sidebar-nav-item:hover{background:#ffffff14;color:#fff}.sidebar-nav-item--active{background:var(--primary);color:#fff;font-weight:600}.sidebar-nav-item--active:hover{background:var(--primary);opacity:.9}.sidebar-nav-icon{font-size:1.1rem}.shell-loading{display:flex;align-items:center;justify-content:center;min-height:100vh;font-size:1.1rem;color:var(--muted)}@media (max-width: 768px){.layout{flex-direction:column}.sidebar{width:100%;min-width:unset;flex-direction:row;flex-wrap:wrap;padding:12px}.tab-btn{padding:10px 14px;font-size:.85rem}.page{padding:16px}}