.regression-page{padding-top:18px}.regression-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;padding:56px 52px;border-radius:24px;background:linear-gradient(135deg,#e8eaff,#fafaff 58%,#e1f8f2)}.regression-hero.nonlinear{background:linear-gradient(135deg,#fff0e4,#fffaf5 56%,#eeeefe)}.regression-hero h1{margin:0 0 17px;font-size:clamp(44px,5vw,68px);line-height:1.04;letter-spacing:-3px}.regression-hero p:not(.eyebrow){max-width:700px;color:var(--muted);font-size:19px}.regression-hero .button{margin-top:20px}.regression-plot{padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.regression-plot svg{display:block;width:100%;height:auto}.regression-plot figcaption{margin-top:8px;color:var(--muted);font-size:15px;text-align:center}.reg-axis{stroke:#626d82;stroke-width:2}.reg-grid{stroke:#e5e8f0;stroke-width:1}.reg-line{fill:none;stroke:#4e46e5;stroke-width:5;stroke-linecap:round}.reg-curve{fill:none;stroke:#e06c37;stroke-width:5;stroke-linecap:round}.reg-step{fill:none;stroke:#19a987;stroke-width:5;stroke-linejoin:round}.reg-point{fill:#fff;stroke:#4e46e5;stroke-width:4}.reg-point-orange{fill:#fff;stroke:#e06c37;stroke-width:4}.reg-label{fill:#59647a;font:600 13px Manrope,Arial,sans-serif}.regression-section{margin-top:78px}.regression-section>.narrative-head{max-width:800px}.regression-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:17px}.regression-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:14px}.regression-card h3{margin:0 0 9px;font-size:25px}.regression-card p{color:var(--muted);font-size:17px}.regression-card ul{display:grid;gap:9px;padding-left:22px;color:#505b72;font-size:16px}.regression-equation{margin:18px 0;padding:18px 20px;border-radius:10px;background:#252d46;color:#fff;font:700 18px/1.7 'DM Mono',monospace;overflow:auto}.regression-equation.light{background:#f1f2fb;color:#252d46;border-left:5px solid #4e46e5}.regression-equation.orange{border-left-color:#e06c37}.regression-equation.mint{border-left-color:#19a987}.symbol-list{display:grid;gap:8px;margin-top:17px}.symbol-list div{display:grid;grid-template-columns:70px 1fr;gap:12px;padding:11px 13px;border-radius:8px;background:#f5f6fb}.symbol-list b{color:#4e46e5;font:800 17px 'DM Mono',monospace}.symbol-list span{color:#505b72}.method-stack{display:grid;gap:19px}.method-panel{display:grid;grid-template-columns:92px 1fr;gap:23px;padding:30px;background:#fff;border:1px solid var(--line);border-radius:15px}.method-number{display:grid;place-items:center;width:66px;height:66px;border-radius:18px;background:#ecebff;color:#4e46e5;font:900 25px 'DM Mono',monospace}.method-panel:nth-child(2) .method-number{background:#e0f8f2;color:#11836d}.method-panel:nth-child(3) .method-number{background:#fff0e5;color:#ba592e}.method-panel h3{margin:0 0 7px;font-size:29px}.method-panel h4{margin:22px 0 8px;font-size:20px}.method-panel p{color:var(--muted);font-size:17px}.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}.pros-cons div{padding:17px;border-radius:10px;background:#e8f8f4;color:#315f56}.pros-cons div:last-child{background:#fff2e8;color:#684d3f}.pros-cons b{display:block;margin-bottom:4px;color:#172033}.calculation{display:grid;gap:7px;margin-top:17px;padding:20px;background:#f4f5fb;border-radius:11px}.calculation p{margin:0;color:#313b52;font:650 16px/1.7 'DM Mono',monospace}.calculation strong{color:#4e46e5}.regression-table{overflow:auto;border:1px solid var(--line);border-radius:13px}.regression-table table{width:100%;border-collapse:collapse;background:#fff;font-size:16px}.regression-table th,.regression-table td{min-width:150px;padding:17px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.regression-table th{background:#ecebff;color:#4e46e5}.regression-table tr:last-child td{border-bottom:0}.regression-table td p{margin:5px 0;color:var(--muted)}.mini-visuals{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.mini-visual{padding:22px;background:#fff;border:1px solid var(--line);border-radius:13px}.mini-visual h3{margin:0 0 6px;font-size:22px}.mini-visual p{color:var(--muted)}.mini-visual svg{display:block;width:100%;height:auto;margin-top:14px;background:#fafbff;border-radius:9px}.feature-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:12px;align-items:center;padding:25px;background:#272e47;border-radius:14px;color:#fff}.feature-flow article{min-height:126px;padding:18px;background:#353d59;border-radius:10px}.feature-flow b,.feature-flow span{display:block}.feature-flow b{color:#9cebdc;font-size:19px}.feature-flow span{margin-top:7px;color:#d8dbea}.feature-flow>i{color:#8d85ff;font-size:25px}.regression-correction{margin-top:18px;padding:20px 22px;border-left:5px solid #4e46e5;border-radius:0 10px 10px 0;background:#ecebff;color:#3e4660;font-size:17px}.regression-correction.orange{border-left-color:#e06c37;background:#fff1e7}.regression-closing{margin-top:72px}@media(max-width:1000px){.regression-hero,.regression-intro{grid-template-columns:1fr}.mini-visuals{grid-template-columns:1fr 1fr}.feature-flow{grid-template-columns:1fr}.feature-flow>i{transform:rotate(90deg);text-align:center}}@media(max-width:720px){.regression-hero{padding:38px 23px}.regression-hero h1{font-size:42px}.method-panel{grid-template-columns:1fr;padding:22px}.method-number{width:54px;height:54px}.pros-cons,.mini-visuals{grid-template-columns:1fr}.regression-card{padding:22px}.regression-equation{font-size:16px}.symbol-list div{grid-template-columns:52px 1fr}}

/* Laboratório compartilhado das páginas de regressão matemática. */
.reg-math-lab{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:18px}.reg-canvas-panel,.reg-control-panel{padding:24px;background:#fff;border:1px solid var(--line);border-radius:15px}.reg-canvas-panel canvas{display:block;width:100%;height:470px;border:1px solid #e0e4ee;border-radius:11px;background:#fbfcff;cursor:grab;touch-action:none}.reg-canvas-panel canvas:active{cursor:grabbing}.reg-canvas-help{display:flex;justify-content:space-between;gap:15px;margin:12px 2px 0;color:var(--muted);font-size:15px}.reg-canvas-help b{color:#e06c37}.reg-control-panel h3{margin:0 0 6px;font-size:24px}.reg-control-panel>p{margin-top:0;color:var(--muted)}.reg-param{margin-top:17px}.reg-param label{display:flex;justify-content:space-between;gap:12px;font-weight:800}.reg-param output{color:#4e46e5;font:850 16px 'DM Mono',monospace}.reg-param input[type=range]{width:100%;margin-top:8px;accent-color:#4e46e5}.reg-rate{display:grid;grid-template-columns:1fr 120px;gap:12px;align-items:center;margin:18px 0}.reg-rate label{font-weight:800}.reg-rate input{width:100%;padding:11px;border:1px solid #cfd5e2;border-radius:8px;font:700 15px 'DM Mono',monospace}.reg-action-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.reg-action-grid .button{padding:12px;font-size:14px}.reg-action-grid .primary-action{grid-column:1/-1;background:#19a987}.reg-action-grid .primary-action:hover{background:#128d74}.reg-live-equation{margin:19px 0 0;padding:18px;border-radius:10px;background:#272e47;color:#fff;font:750 18px/1.6 'DM Mono',monospace;text-align:center}.reg-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:12px}.reg-metrics div{padding:13px 8px;border-radius:9px;background:#f1f2fb;text-align:center}.reg-metrics b,.reg-metrics span{display:block}.reg-metrics b{color:#647086;font-size:12px}.reg-metrics span{margin-top:4px;color:#4e46e5;font:850 16px 'DM Mono',monospace}.reg-calculation-live{margin-top:18px;padding:19px 21px;border-left:5px solid #4e46e5;border-radius:0 10px 10px 0;background:#ecebff;color:#3e4660;font-size:16px;line-height:1.75}.reg-calculation-live strong{color:#4e46e5}.reg-matrix{display:inline-block;margin:10px 0;font:700 14px/1.8 'DM Mono',monospace}.reg-data-table{max-height:430px;overflow:auto;border:1px solid var(--line);border-radius:12px}.reg-data-table table{width:100%;border-collapse:collapse;background:#fff;font-size:15px}.reg-data-table th,.reg-data-table td{padding:13px;text-align:right;border-bottom:1px solid var(--line)}.reg-data-table th{position:sticky;top:0;background:#ecebff;color:#4e46e5}.reg-data-table th:first-child,.reg-data-table td:first-child{text-align:center}.reg-data-table tr:last-child td{border-bottom:0}.reg-math-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.reg-math-step{padding:23px;background:#fff;border:1px solid var(--line);border-top:5px solid #4e46e5;border-radius:12px}.reg-math-step:nth-child(2){border-top-color:#19a987}.reg-math-step:nth-child(3){border-top-color:#e06c37}.reg-math-step:nth-child(4){border-top-color:#7567f7}.reg-math-step b{display:block;font-size:20px}.reg-math-step p{color:var(--muted)}.reg-math-step code{display:block;padding:12px;border-radius:8px;background:#f1f2fb;color:#313b52;font:700 14px/1.6 'DM Mono',monospace;white-space:normal}.reg-method-comparison{display:grid;grid-template-columns:1fr 1fr;gap:17px}.reg-method{padding:27px;background:#fff;border:1px solid var(--line);border-radius:14px}.reg-method h3{margin:0 0 9px;font-size:25px}.reg-method p{color:var(--muted);font-size:17px}.reg-method ol{display:grid;gap:9px;padding-left:24px;color:#505b72}.reg-rna-bridge{display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center;padding:31px 34px;background:linear-gradient(135deg,#272e47,#343e5e);border-radius:15px;color:#fff}.reg-rna-bridge h2{margin:0 0 8px;font-size:29px}.reg-rna-bridge p{margin:0;color:#d7dbea;font-size:17px}.reg-rna-bridge .button{white-space:nowrap}@media(max-width:1050px){.reg-math-lab{grid-template-columns:1fr}.reg-math-steps{grid-template-columns:1fr 1fr}}@media(max-width:760px){.reg-canvas-panel,.reg-control-panel{padding:15px}.reg-canvas-panel canvas{height:380px}.reg-canvas-help{flex-direction:column}.reg-action-grid,.reg-method-comparison,.reg-math-steps{grid-template-columns:1fr}.reg-action-grid .primary-action{grid-column:auto}.reg-rate{grid-template-columns:1fr}.reg-rna-bridge{grid-template-columns:1fr;padding:25px}.reg-rna-bridge .button{white-space:normal}.reg-data-table th,.reg-data-table td{padding:11px}}

/* Ponte conceitual: regressão linear → Perceptron. */
.perceptron-ancestor{padding:38px;border:1px solid #d9dfeb;border-radius:20px;background:linear-gradient(135deg,#eeedff,#fff 52%,#e5f9f4)}.linear-perceptron-flow{display:grid;grid-template-columns:1fr 44px 1fr 44px 1fr;gap:12px;align-items:center}.linear-perceptron-flow article{min-height:220px;padding:25px;border:1px solid var(--line);border-top:5px solid #4e46e5;border-radius:14px;background:#fff}.linear-perceptron-flow .shared-core{border-top-color:#e06c37}.linear-perceptron-flow .perceptron-result{border-top-color:#19a987}.linear-perceptron-flow article>span{color:#5a51dc;font:750 12px 'DM Mono',monospace;letter-spacing:.8px}.linear-perceptron-flow h3{margin:11px 0 8px;font-size:23px}.linear-perceptron-flow code{display:block;margin:16px 0;padding:14px;border-radius:8px;background:#252d46;color:#fff;font:700 15px/1.7 'DM Mono',monospace;overflow:auto}.linear-perceptron-flow p{color:var(--muted);font-size:16px}.linear-perceptron-flow>i{color:#5b4ee8;font-size:22px;text-align:center}.same-calculation{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:19px}.same-calculation>article{padding:24px;border:1px solid var(--line);border-radius:13px;background:#fff}.same-calculation h3{margin:0 0 8px;font-size:22px}.same-calculation p{color:var(--muted);font-size:16px}.same-calculation .regression-equation{font-size:15px}.same-calculation .calculation{margin-top:15px}.same-calculation .calculation p{font-size:15px}.model-answers{display:grid;gap:10px;margin-top:15px}.model-answers div{padding:14px;border-radius:9px;background:#f1f2fb}.model-answers div:last-child{background:#e6f8f3}.model-answers b,.model-answers code,.model-answers span{display:block}.model-answers b{font-size:17px}.model-answers code{margin:5px 0;color:#433ac3;font:750 15px 'DM Mono',monospace}.model-answers span{color:#5d687d;font-size:14px}.ancestor-table{margin-top:19px}.ancestor-table td:first-child{font-weight:850}.perceptron-ancestor-note{display:grid;grid-template-columns:45px 1fr auto;gap:17px;align-items:center;margin-top:19px;padding:23px;border-left:5px solid #19a987;border-radius:0 12px 12px 0;background:#e6f8f3}.perceptron-ancestor-note>i{color:#0f8b73;font-size:31px}.perceptron-ancestor-note b{font-size:21px}.perceptron-ancestor-note p{margin:5px 0 0;color:#365f58;font-size:16px}.perceptron-ancestor-note .button{white-space:nowrap}
@media(max-width:1050px){.linear-perceptron-flow,.same-calculation{grid-template-columns:1fr}.linear-perceptron-flow article{min-height:0}.linear-perceptron-flow>i{transform:rotate(90deg)}.perceptron-ancestor-note{grid-template-columns:45px 1fr}.perceptron-ancestor-note .button{grid-column:1/-1;width:max-content;margin-left:62px}}
@media(max-width:760px){.perceptron-ancestor{padding:25px 16px}.perceptron-ancestor-note{grid-template-columns:1fr}.perceptron-ancestor-note .button{grid-column:auto;width:100%;margin-left:0;white-space:normal}.perceptron-ancestor-note>i{font-size:27px}.linear-perceptron-flow code{font-size:13px}}