:root{--bg: #0a0a0f;--surface: #12121a;--surface-2: #1a1a25;--border: #2a2a3a;--text: #e8e8ef;--text-2: #8888a0;--accent: #6c5ce7;--accent-light: #a29bfe;--green: #00b894;--red: #ff6b6b;--yellow: #ffd93d;--radius: 12px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--mono: "SF Mono", "Cascadia Code", "Fira Code", monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;padding:2rem;max-width:1200px;margin:0 auto}header{text-align:center;margin-bottom:2rem}header h1{font-size:2rem;font-weight:700}.subtitle{color:var(--text-2);margin-top:.5rem}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:3rem 2rem;text-align:center;cursor:pointer;transition:border-color .2s,background .2s}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:#6c5ce70d}.dropzone-icon{font-size:3rem;display:block;margin-bottom:1rem}.dropzone-hint{color:var(--text-2);font-size:.85rem;margin-top:.5rem}.file-label{color:var(--accent-light);cursor:pointer;text-decoration:underline}.loading{text-align:center;padding:3rem}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 1rem}@keyframes spin{to{transform:rotate(360deg)}}.hidden{display:none!important}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1.5rem}.card h2{font-size:1.25rem;margin-bottom:1rem}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-bottom:1rem}.stat-box{background:var(--surface-2);border-radius:8px;padding:1rem;text-align:center}.stat-value{font-size:1.5rem;font-weight:700;font-family:var(--mono);color:var(--accent-light)}.stat-label{font-size:.8rem;color:var(--text-2);margin-top:.25rem}.table-wrap{overflow-x:auto;margin-top:1rem}table{width:100%;border-collapse:collapse;font-size:.85rem;font-family:var(--mono)}th,td{padding:.5rem .75rem;border:1px solid var(--border);text-align:left;white-space:nowrap}th{background:var(--surface-2);color:var(--text-2);font-weight:600;position:sticky;top:0}td{max-width:200px;overflow:hidden;text-overflow:ellipsis}.config-row{display:flex;gap:2rem;align-items:flex-end;margin-bottom:1.5rem;flex-wrap:wrap}.config-field{display:flex;flex-direction:column;gap:.4rem}.config-field label{font-size:.85rem;color:var(--text-2);font-weight:600}select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:.5rem .75rem;font-size:.9rem;font-family:var(--mono);cursor:pointer}select:focus{outline:none;border-color:var(--accent)}.badge{display:inline-block;padding:.35rem .75rem;border-radius:6px;font-size:.85rem;font-weight:600;font-family:var(--mono);background:var(--surface-2);color:var(--text-2)}.badge.classification{background:#6c5ce733;color:var(--accent-light)}.badge.regression{background:#00b89433;color:var(--green)}.feature-section{margin-bottom:1.5rem}.feature-section>label{display:block;font-size:.85rem;color:var(--text-2);font-weight:600;margin-bottom:.5rem}.text-muted{color:var(--text-2);font-size:.85rem}.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.4rem}.feature-check{display:flex;align-items:center;gap:.4rem;font-size:.85rem;font-family:var(--mono)}.feature-check input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px}.feature-check.disabled{opacity:.4}.primary-btn{background:var(--accent);color:#fff;border:none;padding:.6rem 1.5rem;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .2s}.primary-btn:hover{background:#5a4bd1}.primary-btn:disabled{opacity:.5;cursor:not-allowed}#train-progress{display:flex;flex-direction:column;gap:.5rem}.progress-step{display:flex;align-items:center;gap:.75rem;font-size:.9rem;padding:.4rem 0}.progress-step .icon{width:20px;text-align:center}.progress-step.done{color:var(--green)}.progress-step.active{color:var(--accent-light)}.progress-step.pending{color:var(--text-2)}.best-row{background:#00b8941a!important}.best-row td:first-child{color:var(--green);font-weight:700}#fi-canvas{width:100%;max-width:800px;height:auto;margin-top:1rem}.predict-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem;margin-bottom:1rem}.predict-field{display:flex;flex-direction:column;gap:.3rem}.predict-field label{font-size:.8rem;color:var(--text-2);font-family:var(--mono)}.predict-field input{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:.45rem .6rem;font-size:.9rem;font-family:var(--mono)}.predict-field input:focus{outline:none;border-color:var(--accent)}.predict-result{margin-top:1rem;padding:1rem;background:var(--surface-2);border-radius:8px;font-size:1.1rem;font-family:var(--mono)}.predict-result .label{color:var(--text-2);font-size:.85rem}.predict-result .value{color:var(--green);font-weight:700;font-size:1.3rem}.export-bar{display:flex;gap:.5rem;margin-top:1rem;flex-wrap:wrap}.export-btn{background:var(--surface-2);border:1px solid var(--border);color:var(--text);padding:.4rem 1rem;border-radius:6px;cursor:pointer;font-size:.85rem;transition:background .2s}.export-btn:hover{background:var(--accent);color:#fff}footer{text-align:center;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--border);color:var(--text-2);font-size:.85rem}footer a{color:var(--accent-light);text-decoration:none}footer a:hover{text-decoration:underline}