@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.legacy{--ink:#1C3144;--ink-soft:#4C5D6E;--blue:#245E93;--gold:#A8770E;--gold-soft:#F3E8CC;--rule:#DCD5C5;--note:#F5F1E4;--display:"Faustina", Georgia, serif;}
.legacy{background:var(--paper);background-image:linear-gradient(180deg, #F3EFE2 0%, var(--paper) 220px);color:var(--ink);font-family:var(--serif);font-size:1.075rem;line-height:1.68;}
.legacy .legacy-main{max-width:47rem;margin:0 auto;padding:0 1.4rem 5rem}
.legacy header{
    padding:4.2rem 0 2.4rem;
    border-bottom:3px double var(--ink);
    margin-bottom:2.2rem;
    animation:rise .7s ease both;
  }
.legacy .eyebrow{
    font-family:var(--mono);
    font-size:.72rem;
    letter-spacing:.22em;
    text-transform:uppercase;
    color:var(--gold);
    margin:0 0 .9rem;
  }
.legacy h1{
    font-family:var(--display);
    font-weight:700;
    font-size:clamp(2rem, 5.4vw, 3.1rem);
    line-height:1.12;
    margin:0 0 .6rem;
    letter-spacing:-.01em;
  }
.legacy .byline{
    font-style:italic;
    color:var(--ink-soft);
    margin:0 0 1.4rem;
  }
.legacy .lede{
    color:var(--ink-soft);
    max-width:38rem;
    margin:0;
    font-size:.98rem;
  }
.legacy .toc{margin:0 0 3rem;animation:rise .7s .12s ease both}
.legacy .toc h2{margin-bottom:.8rem}
.legacy table{
    width:100%;
    border-collapse:collapse;
    font-size:.92rem;
  }
.legacy th{
    font-family:var(--mono);
    font-size:.68rem;
    letter-spacing:.16em;
    text-transform:uppercase;
    text-align:left;
    color:var(--gold);
    border-bottom:2px solid var(--ink);
    padding:.45rem .6rem .45rem 0;
    font-weight:500;
  }
.legacy td{
    border-bottom:1px solid var(--rule);
    padding:.5rem .6rem .5rem 0;
    vertical-align:top;
  }
.legacy td.num{font-family:var(--mono);font-size:.82rem;white-space:nowrap;color:var(--blue)}
.legacy td a{color:inherit;text-decoration:none}
.legacy tr:hover td{background:var(--gold-soft)}
.legacy h2{
    font-family:var(--display);
    font-weight:600;
    font-size:1.55rem;
    margin:3.2rem 0 .4rem;
    letter-spacing:-.005em;
  }
.legacy .chapter-meta{
    font-family:var(--mono);
    font-size:.72rem;
    letter-spacing:.18em;
    text-transform:uppercase;
    color:var(--gold);
    margin:0 0 1.3rem;
  }
.legacy section > .chapter-note{
    font-size:.92rem;
    color:var(--ink-soft);
    font-style:italic;
    margin:0 0 1.4rem;
  }
.legacy article{
    background:var(--card);
    border:1px solid var(--rule);
    border-left:4px solid var(--gold);
    border-radius:2px;
    padding:1.4rem 1.7rem 1.5rem;
    margin:0 0 1.6rem;
    box-shadow:0 1px 3px rgba(28,49,68,.06);
  }
.legacy article h3{
    font-family:var(--display);
    font-weight:700;
    font-size:1.12rem;
    margin:0 0 .8rem;
    display:flex;
    align-items:baseline;
    gap:.7rem;
  }
.legacy .exnum{
    font-family:var(--mono);
    font-weight:500;
    font-size:.78rem;
    letter-spacing:.08em;
    color:var(--card);
    background:var(--blue);
    padding:.18rem .5rem;
    border-radius:2px;
    white-space:nowrap;
  }
.legacy article p{margin:.7rem 0}
.legacy article p:first-of-type{margin-top:0}
.legacy var{font-style:italic;font-family:var(--serif)}
.legacy .math{white-space:nowrap}
.legacy code{
    font-family:var(--mono);
    font-size:.86em;
    background:var(--note);
    padding:.06em .3em;
    border-radius:2px;
  }
.legacy .frac{
    display:inline-flex;
    flex-direction:column;
    align-items:center;
    vertical-align:middle;
    margin:0 .35rem;
    font-size:.92em;
    line-height:1.35;
  }
.legacy .frac .top{border-bottom:1.5px solid var(--ink);padding:0 .5em .1em}
.legacy .frac .bot{padding:.1em .5em 0}
.legacy .displayeq{
    text-align:center;
    margin:1.1rem 0;
    font-size:1.05em;
  }
.legacy .aside{
    background:var(--note);
    border-left:3px solid var(--gold);
    padding:.7rem 1rem;
    margin:1rem 0 .3rem;
    font-size:.93rem;
    border-radius:0 2px 2px 0;
  }
.legacy .aside .label{
    font-family:var(--mono);
    font-size:.66rem;
    letter-spacing:.18em;
    text-transform:uppercase;
    color:var(--gold);
    display:block;
    margin-bottom:.25rem;
  }
.legacy .aside p{margin:.3rem 0}
.legacy .seq{
    font-size:.85rem;
    color:var(--ink-soft);
    font-style:italic;
    margin-top:.9rem;
    padding-top:.7rem;
    border-top:1px dashed var(--rule);
  }
.legacy footer{
    margin-top:4rem;
    padding-top:1.4rem;
    border-top:3px double var(--ink);
    font-size:.88rem;
    color:var(--ink-soft);
  }
.legacy footer p{margin:.4rem 0}
.legacy .termo{
    border-bottom:1.5px dotted var(--blue);
    cursor:help;
    color:inherit;
    transition:background .15s;
    padding:0 .05em;
  }
.legacy .termo:hover, .legacy .termo:focus, .legacy .termo.ativo{
    background:var(--gold-soft);
    outline:none;
  }
.legacy .termo:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.legacy #tooltip{
    position:absolute;
    max-width:22rem;
    background:var(--card);
    color:var(--ink);
    border:1px solid var(--ink);
    border-top:3px solid var(--gold);
    border-radius:3px;
    padding:.9rem 1.05rem 1rem;
    box-shadow:0 8px 24px rgba(28,49,68,.15), 0 2px 4px rgba(28,49,68,.08);
    font-family:var(--serif);
    font-size:.9rem;
    line-height:1.55;
    z-index:100;
    opacity:0;
    pointer-events:none;
    transform:translateY(4px);
    transition:opacity .15s, transform .15s;
  }
.legacy #tooltip.visivel{
    opacity:1;
    pointer-events:auto;
    transform:none;
  }
.legacy #tooltip .tt-titulo{
    display:block;
    font-family:var(--display);
    font-weight:700;
    font-size:1rem;
    margin-bottom:.35rem;
    color:var(--blue);
    letter-spacing:-.005em;
  }
.legacy #tooltip .tt-def{margin:0 0 .55rem}
.legacy #tooltip .tt-link{
    display:inline-block;
    font-family:var(--mono);
    font-size:.68rem;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--gold);
    text-decoration:none;
    border-bottom:1px solid var(--gold);
    padding-bottom:1px;
  }
.legacy #tooltip .tt-link:hover{color:var(--ink);border-color:var(--ink)}
.legacy #tooltip .tt-fechar{
    position:absolute;
    top:.35rem;
    right:.5rem;
    background:none;
    border:none;
    font-family:var(--mono);
    font-size:1rem;
    color:var(--ink-soft);
    cursor:pointer;
    padding:.15rem .35rem;
    line-height:1;
  }
.legacy #tooltip .tt-fechar:hover{color:var(--ink)}
@media (max-width:560px){.legacy #tooltip{max-width:calc(100vw - 2rem)}}
.legacy details.codigo{
    margin:1.2rem 0 .3rem;
    border-top:1px dashed var(--rule);
    padding-top:.9rem;
  }
.legacy details.codigo summary{
    cursor:pointer;
    font-family:var(--mono);
    font-size:.72rem;
    letter-spacing:.16em;
    text-transform:uppercase;
    color:var(--gold);
    list-style:none;
    padding:.3rem 0;
    user-select:none;
    display:flex;
    align-items:center;
    gap:.5rem;
  }
.legacy details.codigo summary::-webkit-details-marker{display:none}
.legacy details.codigo summary::before{
    content:"▸";
    display:inline-block;
    transition:transform .18s ease;
    color:var(--blue);
    font-size:.9rem;
  }
.legacy details.codigo[open] summary::before{transform:rotate(90deg)}
.legacy details.codigo summary:hover{color:var(--ink)}
.legacy details.codigo pre{
    background:#0F1B2A;
    color:#E4E7EB;
    border-radius:3px;
    padding:1rem 1.1rem;
    margin:.7rem 0 0;
    overflow-x:auto;
    font-family:var(--mono);
    font-size:.82rem;
    line-height:1.55;
    max-height:26rem;
    overflow-y:auto;
  }
.legacy details.codigo pre code{background:none;padding:0;color:inherit;font-size:inherit}
.legacy .executor{
    margin-top:1rem;
    padding:1rem 1.1rem 1.1rem;
    background:linear-gradient(180deg, var(--note) 0%, #FBF7EA 100%);
    border-radius:3px;
    border:1px solid var(--rule);
  }
.legacy .executor .obs{
    margin:0 0 .8rem;
    font-size:.85rem;
    color:var(--ink-soft);
    font-style:italic;
  }
.legacy .executor .campos{
    display:flex;
    flex-wrap:wrap;
    gap:.7rem .9rem;
    margin-bottom:.9rem;
  }
.legacy .executor label{
    display:flex;
    flex-direction:column;
    font-family:var(--mono);
    font-size:.68rem;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--ink-soft);
    gap:.25rem;
    flex:1 1 10rem;
  }
.legacy .executor input{
    font-family:var(--mono);
    font-size:.92rem;
    padding:.4rem .55rem;
    border:1px solid var(--rule);
    border-radius:2px;
    background:var(--card);
    color:var(--ink);
    letter-spacing:0;
    text-transform:none;
    transition:border-color .15s, box-shadow .15s;
  }
.legacy .executor input:focus{
    outline:none;
    border-color:var(--blue);
    box-shadow:0 0 0 3px rgba(36,94,147,.15);
  }
.legacy .executor button{
    font-family:var(--mono);
    font-size:.8rem;
    letter-spacing:.12em;
    text-transform:uppercase;
    background:var(--ink);
    color:var(--paper);
    border:none;
    padding:.6rem 1.1rem;
    border-radius:2px;
    cursor:pointer;
    transition:background .15s, transform .1s;
  }
.legacy .executor button:hover:not(:disabled){background:var(--blue)}
.legacy .executor button:active:not(:disabled){transform:translateY(1px)}
.legacy .executor button:disabled{opacity:.55;cursor:wait}
.legacy .executor .saida{
    margin:1rem 0 0;
    background:var(--card);
    border:1px solid var(--rule);
    border-left:3px solid var(--blue);
    padding:.9rem 1rem;
    font-family:var(--mono);
    font-size:.82rem;
    line-height:1.55;
    color:var(--ink);
    white-space:pre-wrap;
    overflow-x:auto;
    border-radius:0 2px 2px 0;
    max-height:22rem;
    overflow-y:auto;
    animation:fadeIn .25s ease;
  }
@media (max-width:560px){.legacy article{padding:1.1rem 1rem 1.2rem}.legacy{font-size:1rem;}}
/* extra: rsa */
.legacy { --gold: #7A5700; border-radius: var(--radius); overflow: hidden; }
:root[data-theme="dark"]{
  .legacy { --paper: #171918; --card: #1E2120; --ink: #E6E3DA; --ink-soft: #B3B0A6; --blue: #8DB8E6; --gold: #E0B454; --gold-soft: #3A3220; --rule: #3A3E3B; --note: #1F2321;
    background-image: none; }
  .legacy a { color: var(--blue); }
}
@media (prefers-color-scheme: dark){:root:not([data-theme]){
  .legacy { --paper: #171918; --card: #1E2120; --ink: #E6E3DA; --ink-soft: #B3B0A6; --blue: #8DB8E6; --gold: #E0B454; --gold-soft: #3A3220; --rule: #3A3E3B; --note: #1F2321;
    background-image: none; }
  .legacy a { color: var(--blue); }
}}