/* Estilo común de las animaciones de Claudito (extension/animaciones/). */
:root{
  --bg:#f7f6f2; --panel:#ffffff; --ink:#1d1d22; --muted:#6b6b75; --line:#dedcd5;
  --axis:#2a2a33; --grid:rgba(40,60,120,.16); --plane:rgba(70,110,200,.10);
  --c1:#d1345b; --c2:#e07a1f; --c3:#2e9d4f; --c4:#7a4fd8; --c5:#1f86c9; --c6:#555560;
  --btn:#efede7; --btn-h:#e4e1d8; --acc:#7a4fd8;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#15161b; --panel:#1e2027; --ink:#ecebf2; --muted:#9a9aa8; --line:#30323c;
    --axis:#d8d8e2; --grid:rgba(150,170,230,.16); --plane:rgba(110,140,230,.12);
    --c1:#ff6b8b; --c2:#ff9f4a; --c3:#5fd08a; --c4:#a98bff; --c5:#5cb8f0; --c6:#b8b8c4;
    --btn:#2a2c35; --btn-h:#343743; --acc:#a98bff;
  }
}
:root[data-theme="dark"]{
  --bg:#15161b; --panel:#1e2027; --ink:#ecebf2; --muted:#9a9aa8; --line:#30323c;
  --axis:#d8d8e2; --grid:rgba(150,170,230,.16); --plane:rgba(110,140,230,.12);
  --c1:#ff6b8b; --c2:#ff9f4a; --c3:#5fd08a; --c4:#a98bff; --c5:#5cb8f0; --c6:#b8b8c4;
  --btn:#2a2c35; --btn-h:#343743; --acc:#a98bff;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  display:flex;min-height:100vh}
main{flex:1;display:flex;flex-direction:column;min-width:0}
#lienzo{flex:1;width:100%;min-height:320px;display:block;touch-action:none}
.barra{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 16px;border-top:1px solid var(--line)}
button{font:inherit;background:var(--btn);color:var(--ink);border:1px solid var(--line);border-radius:8px;
  padding:6px 12px;cursor:pointer}
button:hover{background:var(--btn-h)}
button.prim{background:var(--acc);color:#fff;border-color:transparent;min-width:110px}
.puntos{display:flex;gap:6px;margin-left:auto}
.puntos span{width:12px;height:12px;border-radius:50%;background:var(--line);cursor:pointer}
.puntos span.hecho{background:color-mix(in srgb,var(--acc) 45%,var(--line))}
.puntos span.act{background:var(--acc);transform:scale(1.25)}
label.op{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:14px}
select{font:inherit;background:var(--btn);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:3px}
aside{width:370px;flex:none;background:var(--panel);border-left:1px solid var(--line);padding:20px;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.paso{color:var(--muted);font-size:13px;letter-spacing:.04em;text-transform:uppercase}
h1{font-size:22px;margin:2px 0 8px;line-height:1.25}
#texto p{margin:0 0 10px}
.m{font-family:"Latin Modern Math","STIX Two Math","Cambria Math","Times New Roman",serif;font-style:italic;font-size:1.08em}
.f{font-family:"Latin Modern Math","STIX Two Math","Cambria Math","Times New Roman",serif;font-size:17px;
  background:var(--bg);border-radius:8px;padding:10px 12px;margin:8px 0;line-height:1.8}
.f i{font-style:italic}
.c1{color:var(--c1)} .c2{color:var(--c2)} .c3{color:var(--c3)} .c4{color:var(--c4)} .c5{color:var(--c5)} .c6{color:var(--c6)}
.desl{display:grid;grid-template-columns:28px 1fr 92px;gap:6px 10px;align-items:center}
.desl b{font-family:"Times New Roman",serif;font-style:italic;font-size:20px;font-weight:normal}
.desl output{font-variant-numeric:tabular-nums;text-align:right;font-size:14px}
.desl select{grid-column:span 2}
input[type=range]{width:100%}
.lect{font-variant-numeric:tabular-nums;font-size:14px;color:var(--muted)}
.lect strong{color:var(--ink);font-weight:600}
.ayuda{font-size:12.5px;color:var(--muted);margin-top:auto}
kbd{font:12px ui-monospace,monospace;border:1px solid var(--line);border-radius:4px;padding:0 4px}
@media (max-width:820px){
  body{flex-direction:column}
  #lienzo{height:62vh;flex:none}
  aside{width:auto;border-left:none;border-top:1px solid var(--line);padding:16px}
  .puntos{margin-left:0}
}