/* REDES SOCIAIS — noite elétrica: violeta e ciano */
body.t-redes{--bg:#0b0820;--fg:#f1eeff;--muted:#a49ec7;--line:rgba(190,170,255,.18);--accent:#25e3d0;--accent-2:#8f5bff;--accent-ink:#0b0820;--card:#141032;background:var(--bg)}
.t-redes .dark{--bg:#0b0820;--card:#141032;background:var(--bg)}
.t-redes .light{--bg:#eeeaff;--fg:#140f33;--muted:#4f4a7a;--line:rgba(20,15,51,.16);--card:#fff;--accent:#8f5bff;--accent-ink:#fff}
.rhero{padding:0;min-height:max(100vh,820px);min-height:max(100svh,820px);display:block;background:#0b0820}
.rh-stage{position:absolute;inset:0;z-index:0}
.rh-txt{position:relative;z-index:2;pointer-events:none;padding-top:130px}
.rh-txt a,.rh-txt p{pointer-events:auto}
.rhero h1{max-width:9ch;font-size:clamp(46px,8.4vw,150px)}
.rhero .row{position:absolute;left:var(--pad);right:var(--pad);top:calc(100vh - 190px);top:calc(100svh - 190px);margin:0;grid-template-columns:1fr auto}
.rhero .lead{max-width:40ch}
@media(max-width:800px){.rhero .row{top:auto;bottom:30px;position:absolute;grid-template-columns:1fr}.rhero .lead{display:none}}
.lightbox{position:fixed;inset:0;z-index:120;display:none;place-items:center;background:rgba(5,5,6,.9);backdrop-filter:blur(10px)}
.lightbox.on{display:grid}.lightbox img{max-height:86vh;max-width:90vw;border-radius:18px}
.lightbox button{position:absolute;top:24px;right:24px;padding:12px 18px;border-radius:99px;background:var(--accent);color:#0b0820;font-weight:600}
/* tema vs solto */
.tem-ctrl{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;margin:36px 0 26px}
.sw{position:relative;display:flex;border-radius:99px;box-shadow:inset 0 0 0 1px var(--line);padding:5px}
.sw button{position:relative;z-index:1;padding:11px 22px;border-radius:99px;font-weight:600;font-size:14px;color:var(--muted);transition:color .3s}
.sw button.on{color:#0b0820}
.sw i{position:absolute;z-index:0;top:5px;bottom:5px;left:5px;width:calc(50% - 5px);border-radius:99px;background:var(--accent);transition:transform .5s var(--ease)}
.sw.t i{transform:translateX(100%)}
.cal{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.cal .wk{display:grid;gap:10px;align-content:start}
.cal .wk>span{font-family:var(--f-mono);font-size:11px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.cc{position:relative;border-radius:18px;padding:16px;min-height:104px;display:flex;flex-direction:column;justify-content:space-between;gap:10px;font-size:14px;line-height:1.25;transition:background .6s,color .6s,transform .6s var(--ease);background:var(--card);box-shadow:inset 0 0 0 1px var(--line)}
.cc small{font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;opacity:.75}
.cc.solto{transform:rotate(var(--r,0deg))}
.cc.tema{background:var(--c);color:#0b0820;box-shadow:none}
.cc.flip{animation:flipc .7s var(--ease)}
@keyframes flipc{from{transform:rotateX(90deg);opacity:0}to{transform:none;opacity:1}}
.tem-read{margin-top:26px;color:var(--muted);max-width:70ch;min-height:3em}
@media(max-width:900px){.cal{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.cal{grid-template-columns:1fr}}
/* órbita */
.orb-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,80px);align-items:center}
.orb-info{margin-top:28px;padding:22px 26px;border-radius:22px;background:#140f33;color:#eeeaff;min-height:130px}
.orb-info p{color:#b3accc;margin-top:6px}
.orb-vis svg{width:100%;max-width:560px;margin:auto}
.ring{fill:none;stroke:#140f33;stroke-opacity:.2;stroke-width:1.5;transition:stroke .3s,stroke-opacity .3s,stroke-width .3s;cursor:pointer}
.rg:hover .ring,.rg.on .ring{stroke:#8f5bff;stroke-opacity:1;stroke-width:3}
.dot{transition:r .3s}
@keyframes orbit{to{transform:rotate(360deg)}}
.orb-rot{transform-origin:0 0;animation:orbit var(--d,20s) linear infinite}
@media(max-width:900px){.orb-grid{grid-template-columns:1fr}}
/* algoritmo */
.alg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.6vw,22px)}
.ag{border-radius:26px;padding:28px;min-height:330px;display:flex;flex-direction:column;justify-content:flex-end;gap:10px;background:var(--card);box-shadow:inset 0 0 0 1px var(--line);position:relative;overflow:hidden;transition:transform .6s var(--ease),background .5s}
.ag b{position:absolute;left:24px;top:14px;font-size:clamp(80px,8vw,130px);line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--accent-2);transition:color .5s}
.ag:hover{transform:translateY(-10px);background:linear-gradient(160deg,#2b1a6b,#141032)}
.ag:hover b{color:var(--accent-2);-webkit-text-stroke-color:var(--accent-2)}
.ag p{color:var(--muted);font-size:15px}
.ag.dim{opacity:.62}
.alg-note{margin-top:24px;color:var(--muted)}
@media(max-width:1000px){.alg-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.alg-grid{grid-template-columns:1fr}}
.faq-s{background:var(--bg)}