/* Linguagem visual inspirada no Curvo Studio, com identidade própria do ITF. */
:root{--paper:#f5f3eb;--panel:#fffefa;--ink:#17353e;--muted:#60757b;--teal:#4ac8c5;--lime:#9acb2c}
body{background:var(--paper);color:var(--ink)}
header{height:68px;background:#fff;color:var(--muted);border-bottom:1px solid #dce1da;padding:0 max(24px,5vw);box-shadow:0 2px 12px #152b2510}
.brand{color:var(--ink);font-size:15px}.brand b{background:var(--teal);color:#082c3d;border-radius:7px;padding:7px 8px}
header nav{gap:24px}header nav a{color:var(--muted);font-size:12px}header nav a.on{color:var(--ink)!important;background:#edf3f0;border-radius:8px;padding:10px 12px}
main{max-width:1180px;margin:0 auto;padding:22px 22px 0}
.component-nav{display:flex;align-items:center;gap:18px;margin-bottom:14px}.component-nav button{background:#132d2d;color:#fff;border:0;border-radius:12px;padding:18px 24px;font-weight:800}.component-nav span{font-size:11px;color:#6c7d7e;letter-spacing:.08em;text-transform:uppercase}
.intro{background:var(--panel);border:1px solid #dfe4dc;border-radius:16px;padding:28px 34px 24px;margin:0 0 14px;min-height:150px;box-shadow:0 6px 18px #213d3210}.crumb{color:#2b7477}.intro h1{font-size:44px;margin:8px 0;color:#163849}.intro p:not(.crumb){font-size:14px;max-width:760px;color:#5d737c;line-height:1.6}.energy{margin-top:18px}
.projectbar{display:flex;justify-content:space-between;align-items:center;background:#fff;border:1px solid #dfe4dc;border-radius:14px;padding:14px 20px;margin:0 0 14px;color:#526d72}.projectbar div:first-child{display:flex;flex-direction:column;gap:4px}.projectbar small{color:#83918e}.projectbar button{background:#fff;border:1px solid #cdd8d1;border-radius:9px;padding:9px 14px;margin-left:7px;font-weight:700;color:#36545b}
.layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:14px;padding:12px;background:#ecebe3;border:1px solid #d8ddd5;border-radius:16px;box-shadow:0 7px 20px #263c3012}
.settings{border:1px solid #dfe5dc;border-radius:13px;padding:20px;background:#fffefa}.settings section{padding-bottom:19px;margin-bottom:20px}.settings h2{font-size:18px;color:#173b45}.settings label{color:#526b73}.settings select,.settings input{border-radius:8px;background:#fbfcf8}.settings input[type=range]{padding:0;accent-color:#138adf}.settings label b{color:#54727a}
.visual{height:570px;position:relative;overflow:hidden;border-radius:13px;background:radial-gradient(circle at 52% 45%,#f4f1e7,#e7e3d8 58%,#d6d2c8 100%);border:1px solid #d5d8d0;box-shadow:inset 0 1px #fff}
#viewport{position:absolute;inset:0}.model-controls,.model-note,.field{position:absolute;background:#ffffffdf;padding:9px;font-size:11px}.model-controls{left:20px;top:20px;display:flex;gap:6px;flex-wrap:nowrap;border-radius:22px;box-shadow:0 3px 10px #27372c18;z-index:2}.model-controls label{white-space:nowrap}.model-controls input{accent-color:var(--lime)}.field{bottom:18px;left:20px;background:#092a3ad9;color:#dceef0;display:flex;gap:12px;border-radius:7px}.field span:nth-child(1){color:#ff936f}.field span:nth-child(2){color:#5ce5de}.field span:nth-child(3){color:#e2ef59}.model-note{right:20px;bottom:18px;border-radius:18px;background:#fffef0e8;color:#4f6867;border:1px solid #d6ded4;font-family:monospace}.model-note small{color:#7b8c8a}#resetView{position:absolute;right:20px;top:20px;padding:8px 12px;font-size:10px;border:1px solid #5e8690;background:#fff;border-radius:18px;box-shadow:0 3px 10px #27372c18;z-index:3}
.part-labels{position:absolute;inset:72px 18px 62px;pointer-events:none;z-index:2}.part-label{position:absolute;display:none;max-width:185px;padding:6px 9px;border-radius:7px;background:#102a32e8;color:#fff;font-size:10px;font-weight:800;line-height:1.15;box-shadow:0 2px 6px #152b2530}.visual[data-view=exploded] .part-label{display:block}.part-body{top:3%;left:31%}.part-encoder-cover{top:13%;right:8%}.part-encoder{top:29%;right:7%}.part-stator{top:37%;right:4%}.part-coils{top:49%;left:32%}.part-rotor{top:56%;left:34%}.part-flange{top:63%;left:3%}.part-shaft{top:67%;left:32%}.part-bearing-a{top:74%;left:8%}.part-bearing-b{top:82%;left:18%}
.readouts{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:#fff;border:1px solid #dfe4dc;border-radius:14px;padding:22px 28px;margin-top:14px}.readouts article{border-right:1px solid #dae4df}.readouts span{font-size:10px;color:#52717d}.readouts b{display:block;font:700 25px Consolas;color:#123e50;margin-top:8px}
.curves{background:#fff;border:1px solid #dfe4dc;border-radius:14px;margin-top:14px;padding:34px}.curves h2,.learn h2{color:#173b45}.curves canvas{box-shadow:0 3px 12px #18383e25}
.learn{margin-top:14px;border-radius:14px;padding:40px;background:#fff;border:1px solid #dfe4dc}.learn article{border-top-color:var(--teal)}
/* Por enquanto, o servo é um módulo de estudo visual, sem ensaio elétrico. */
.energy,.layout .settings>section:nth-child(2),.readouts,.curves{display:none}.model-controls label:has(#slow){display:none}
.projectbar{display:none}
@media(max-width:700px){main{padding:12px}.layout{grid-template-columns:1fr}.visual{height:560px}}
@media(max-width:500px){.component-nav span{display:none}.intro h1{font-size:38px}.model-controls{right:10px}.field{left:10px;right:10px;overflow:auto}.projectbar{align-items:flex-start;gap:10px;flex-direction:column}.settings{padding:16px}}
.feedback-lab{margin-top:14px;padding:28px;border:1px solid #dfe4dc;border-radius:16px;background:#fffefa;box-shadow:0 7px 20px #263c3012}.feedback-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-end}.feedback-head h2{margin:5px 0;color:#173b45;font-size:27px}.feedback-head p:not(.step){max-width:650px;color:#63767b;line-height:1.55}.feedback-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.feedback-actions button{border:1px solid #9ab7b4;background:#fff;border-radius:18px;padding:9px 13px;color:#173b45;font-weight:700;cursor:pointer}.feedback-actions button:first-child{background:#163c46;color:#fff}.feedback-actions label{display:flex;align-items:center;gap:8px;font-size:11px;color:#60757b;padding:8px 10px;background:#f0f3ed;border-radius:18px}.feedback-actions input{accent-color:#1c9d9c}.feedback-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}.feedback-card{border:1px solid #dfe4dc;border-radius:13px;padding:17px;background:#f8faf5}.encoder-card{border-top:4px solid #43c7c0}.resolver-card{border-top:4px solid #ef9a73}.feedback-card-head{display:flex;justify-content:space-between;align-items:start;gap:10px}.feedback-kicker{font-size:10px;letter-spacing:.1em;font-weight:800;color:#4f7477}.feedback-card h3{margin:5px 0 13px;color:#173b45;font-size:18px}.feedback-badge{font-size:10px;font-weight:800;border-radius:12px;padding:5px 8px}.encoder-badge{color:#137b7b;background:#d9f2ed}.resolver-badge{color:#a65742;background:#fee1d2}.feedback-card canvas{display:block;width:100%;height:auto;border-radius:8px;background:#0b2029;box-shadow:inset 0 0 0 1px #33515a}.feedback-values{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.feedback-values div{padding:8px 10px;background:#fff;border:1px solid #dce5df;border-radius:8px}.feedback-values small{display:block;font-size:10px;color:#6c8080}.feedback-values strong{display:block;margin-top:4px;color:#143f4c;font:700 16px Consolas}.feedback-note{margin:13px 0 0;color:#60757b;font-size:12px;line-height:1.5}.feedback-note b{color:#173b45}@media(max-width:850px){.feedback-head{align-items:flex-start;flex-direction:column}.feedback-grid{grid-template-columns:1fr}}@media(max-width:500px){.feedback-lab{padding:18px}.feedback-actions{align-items:stretch;flex-direction:column;width:100%}.feedback-actions label{justify-content:space-between}.feedback-values strong{font-size:13px}}