:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#152238;background:#f5f7fa;line-height:1.5}.sel-app{max-width:1220px;margin:0 auto;padding:32px 20px 64px}.tool-hero{display:flex;justify-content:space-between;gap:32px;align-items:flex-end;padding:28px 0 30px}.tool-hero h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.02;margin:.2rem 0 .7rem;letter-spacing:-.04em}.lede{max-width:760px;color:#536276;font-size:1.05rem}.eyebrow,.kicker{text-transform:uppercase;letter-spacing:.12em;font-size:.72rem;font-weight:800;color:#65758b;margin:0}.hero-badge{display:grid;gap:3px;min-width:190px;padding:15px 18px;border:1px solid #d9e0e8;border-radius:16px;background:#fff;box-shadow:0 8px 30px rgba(32,54,82,.06)}.hero-badge span{font-size:.8rem;color:#607085}.workspace-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(340px,.95fr);gap:18px}.panel{background:#fff;border:1px solid #dde3ea;border-radius:20px;padding:22px;box-shadow:0 8px 28px rgba(27,49,78,.055)}.panel-head,.section-row,.load-card-head,.button-row,.chart-title{display:flex;align-items:center;justify-content:space-between;gap:12px}.panel h2,.panel h3{margin:.15rem 0 .75rem}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:grid;gap:7px;font-weight:650;font-size:.88rem}.field em{font-style:normal;font-weight:550;color:#718096}.field input,.field select{width:100%;box-sizing:border-box;border:1px solid #cfd8e3;border-radius:11px;padding:11px 12px;background:#fbfcfe;color:#16243a;font:inherit}.field input:focus,.field select:focus{outline:3px solid rgba(60,100,160,.14);border-color:#7590b5}.load-section{border-top:1px solid #e7ebf0;margin-top:20px;padding-top:20px}.hint{color:#708096;font-size:.82rem}.load-list{display:grid;gap:10px;margin:12px 0 18px}.load-card{background:#f7f9fc;border:1px solid #e0e6ee;border-radius:14px;padding:14px}.load-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px}.load-fields.three{grid-template-columns:repeat(3,1fr)}button{font:inherit;cursor:pointer}.primary-button,.secondary-button,.ghost-button,.remove-button{border-radius:10px;padding:10px 14px;font-weight:750}.primary-button{border:0;background:#183a66;color:#fff;width:100%;padding:13px}.secondary-button{border:1px solid #cbd6e3;background:#fff;color:#234466}.ghost-button{border:1px solid #ccd6e1;background:#f8fafc;color:#234466}.remove-button{border:0;background:transparent;color:#7a4650;padding:4px 6px;font-size:.82rem}.result-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.result-card,.critical-card{border:1px solid #e0e6ed;border-radius:14px;padding:14px;background:#fafbfd}.result-card{display:grid;gap:3px}.result-card span,.critical-card span{font-size:.78rem;color:#6b7b8e}.result-card strong{font-size:1.45rem}.result-card em{font-style:normal;color:#55677d}.critical-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:12px}.critical-card{display:grid;gap:3px}.critical-card small{color:#718096}.empty-state{min-height:255px;display:grid;place-content:center;text-align:center;color:#6c7b8f;gap:5px}.version-pill{font-size:.72rem;background:#edf2f7;border-radius:999px;padding:6px 9px;color:#50647b}.visual-panel{margin-top:18px}.diagram-card{border:1px solid #e1e7ef;border-radius:15px;background:#fbfcfe;min-height:155px;margin:15px 0;padding:8px}.placeholder{display:grid;place-items:center;color:#7b8999}.diagram-card svg{width:100%;height:auto}.beam-line{stroke:#203c62;stroke-width:6;stroke-linecap:round}.load-line{stroke:#9b4f4f;stroke-width:2}.load-fill{fill:#9b4f4f}.support{fill:#68798e}.chart-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.chart-card{border:1px solid #e1e7ee;border-radius:14px;padding:12px;background:#fbfcfe}.chart-card svg{width:100%;height:auto;min-height:180px}.response-line{stroke:#2d557f;stroke-width:2.4}.axis{stroke:#98a7b8;stroke-width:1}.axis.muted{stroke:#d3dae3}.axis-label{font-size:12px;fill:#69798c}.details-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}.prose,.clean-list{color:#506176}.clean-list{padding-left:20px}.warning-panel{border-color:#e5d6c0;background:#fffdf8}.example-panel{margin-top:18px}.message{border-radius:12px;padding:11px 13px;margin-bottom:12px}.error-message{background:#fff3f3;border:1px solid #eccaca;color:#833d3d}@media(max-width:900px){.workspace-grid,.details-grid{grid-template-columns:1fr}.chart-grid{grid-template-columns:1fr}.tool-hero{align-items:flex-start;flex-direction:column}.hero-badge{min-width:0}.results-panel{min-height:auto}}@media(max-width:560px){.sel-app{padding:18px 12px 44px}.panel{padding:16px;border-radius:16px}.field-grid,.result-cards,.critical-grid,.load-fields,.load-fields.three{grid-template-columns:1fr}.section-row,.panel-head{align-items:flex-start}.button-row{flex-wrap:wrap;justify-content:flex-start}.secondary-button{padding:8px 10px}.tool-hero{padding-top:16px}.tool-hero h1{font-size:2.2rem}}

/* Statistical dashboard refinements */
.sel-app{max-width:1240px;margin:0 auto;padding:42px 20px 72px;background:#f5f8fb}.tool-hero{padding:30px 32px;border:1px solid #173c64;border-radius:14px;background:linear-gradient(120deg,#071a2f,#0c3155 74%,#124b78);color:#fff;box-shadow:0 18px 45px rgba(7,26,47,.14)}.tool-hero h1{font-family:'Space Grotesk',sans-serif;color:#fff;font-size:clamp(2rem,4vw,3.25rem);letter-spacing:-.045em}.tool-hero .lede{color:#c8d9ea}.tool-hero .eyebrow{color:#73b7ff}.hero-badge{border-color:#4d7194;background:rgba(255,255,255,.08);color:#fff;box-shadow:none}.hero-badge span{color:#c8d9ea}.workspace-grid{gap:16px}.panel{border-color:#d8e2ec;border-radius:12px;box-shadow:0 8px 24px rgba(15,44,75,.055)}.panel h2,.panel h3{font-family:'Space Grotesk',sans-serif}.field input,.field select{border-color:#c9d5e2;border-radius:7px;background:#fbfdff}.field input:focus,.field select:focus{border-color:#2475e8;outline:3px solid rgba(36,117,232,.12)}.primary-button{background:#2475e8;box-shadow:0 6px 16px rgba(36,117,232,.18)}.secondary-button,.ghost-button{border-radius:7px}.result-card,.critical-card{border-color:#d9e4ee;border-radius:9px;background:linear-gradient(180deg,#fff,#f7faff)}.result-card strong{font-family:'Space Grotesk',sans-serif;color:#0a2b4d;font-variant-numeric:tabular-nums}.version-pill{background:#e8f2fd;color:#1768ca}.chart-card{border-color:#d9e4ee;border-radius:9px;background:#fbfdff}.details-grid{gap:16px}.warning-panel{background:#fffaf3}.message{border-radius:7px}@media(max-width:560px){.sel-app{padding:22px 12px 50px}.tool-hero{padding:24px 20px}.tool-hero h1{font-size:2.2rem}}