/* Guías de Medusa Hardware
   Oscuro por defecto (modo claro con el botón del sol), acentos verde agua de la marca */
:root{
  --bg:#050706; --surface:#0d1413; --soft:#0f1d1b; --ink:#eef4f3; --muted:#93a3a0; --line:rgba(255,255,255,.09);
  --teal:#1fbfae; --deep:#0b3a35; --shadow:0 30px 80px -40px rgba(31,191,174,.35);
  --teal-hi:#1fbfae; --deep-ink:#e8fffb; --yellow:#e9cf1d; --nav:rgba(5,7,6,.78);
  --head:"Inter Tight","Inter",system-ui,sans-serif; --body:"Inter",system-ui,sans-serif; --cond:"Barlow Condensed",sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#f5f8f7; --surface:#fff; --soft:#eaf6f4; --ink:#0a1211; --muted:#566664; --line:rgba(10,18,17,.1);
  --teal:#0c9c8e; --teal-hi:#1fbfae; --deep:#062a26; --deep-ink:#e8fffb; --yellow:#e9cf1d;
  --nav:rgba(5,7,6,.78); --shadow:0 30px 70px -40px rgba(6,42,38,.45);
  --head:"Inter Tight","Inter",system-ui,sans-serif; --body:"Inter",system-ui,sans-serif; --cond:"Barlow Condensed",sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased;transition:background .4s,color .4s}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
svg{flex:none}
::selection{background:var(--teal-hi);color:#021}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}

/* Scroll verde y fino, igual en todo el sitio */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(#1fbfae,#0d7f74);border-radius:10px;border:2px solid var(--bg)}
@supports not selector(::-webkit-scrollbar){html{scrollbar-color:#1fbfae var(--bg);scrollbar-width:thin}}

/* Barra de progreso de lectura */
.progress{position:fixed;inset:0 0 auto;height:3px;z-index:60;transform-origin:0 50%;transform:scaleX(var(--p,0));background:linear-gradient(90deg,var(--teal-hi),var(--yellow))}

/* NAV: idéntica a la de la home (transparente arriba, vidrio al bajar) */
.nav{position:fixed;inset:0 0 auto;z-index:50;border-bottom:1px solid transparent;color:#f2f5f4;transition:background .3s,border-color .3s}
.nav.scrolled,:root[data-theme="light"] .nav{background:rgba(5,7,6,.94);border-color:rgba(255,255,255,.09)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:.75rem;flex-shrink:0}
.logo .ph{width:40px;height:40px;border-radius:50%;border:2px solid var(--teal-hi);overflow:hidden;flex:none}
.logo .ph img{width:100%;height:100%;object-fit:cover}
.logo .logo-wordmark{height:34px;width:auto;object-fit:contain;transition:transform .25s var(--ease),filter .25s}
.logo:hover .logo-wordmark{transform:scale(1.03);filter:drop-shadow(0 0 8px rgba(31,191,174,.5))}
.nav ul{display:flex;gap:2rem;list-style:none;font-family:var(--cond);font-weight:600;text-transform:uppercase;letter-spacing:.1em;font-size:.95rem}
.nav ul a{color:#9aa7a4;transition:color .2s}
.nav ul a:hover,.nav ul a[aria-current]{color:#f2f5f4}
.nav ul a[aria-current]{color:var(--teal-hi)}
.nav .btn{padding:.65em 1.2em;font-size:.9rem;white-space:nowrap}
.nav-r{display:flex;align-items:center;gap:10px}
.theme{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.14);color:#f2f5f4;display:grid;place-items:center;transition:background .2s,transform .3s var(--ease)}
.theme:hover{background:rgba(255,255,255,.08);transform:rotate(20deg)}
.theme svg{width:18px;height:18px}
.theme .sun,:root[data-theme="light"] .theme .moon{display:none}
:root[data-theme="light"] .theme .sun{display:block}
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--cond);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.95rem;padding:.8em 1.35em;border-radius:999px;transition:transform .25s var(--ease),box-shadow .25s,background .25s,border-color .25s}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--teal-hi);color:#03110f}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(31,191,174,.9)}
.btn-ghost{border:1px solid var(--line);background:var(--surface)}
.btn-ghost:hover{border-color:var(--teal);transform:translateY(-2px)}

/* Aparición al scrollear */
/* Aparición suave desde un estado ya visible: nada queda oculto si el script no corre */
.js [data-rv]:not(.in){opacity:.35;transform:translateY(18px)}
[data-rv]{transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--d,0) * 80ms)}
h1,h2,h3{text-wrap:balance}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--teal-hi);outline-offset:3px;border-radius:8px}
.words .w{display:inline-block;opacity:0;transform:translateY(.6em) rotate(2deg);filter:blur(6px);animation:word .9s var(--ease) forwards;animation-delay:calc(var(--i) * 70ms + 120ms)}
@keyframes word{to{opacity:1;transform:none;filter:none}}

.eyebrow{font-family:var(--cond);font-weight:700;letter-spacing:.18em;text-transform:uppercase;font-size:.85rem;color:var(--teal)}
.chip{display:inline-flex;align-items:center;gap:.4em;font-family:var(--cond);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;color:var(--teal)}
.chip i{width:4px;height:4px;border-radius:50%;background:currentColor;opacity:.5}

/* ===== ÍNDICE ===== */
.g-hero{position:relative;padding:156px 0 40px;text-align:center;overflow:hidden;isolation:isolate}
.g-hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(55% 50% at 78% 42%,rgba(31,191,174,.2),transparent 70%),linear-gradient(180deg,rgba(5,7,6,.2),transparent 30%,transparent 72%,var(--bg))}
:root[data-theme="light"] .g-hero::after{background:radial-gradient(55% 50% at 78% 42%,rgba(12,156,142,.16),transparent 70%),linear-gradient(180deg,transparent 72%,var(--bg))}
@keyframes float{to{transform:translate(60px,50px) scale(1.12)}}
.g-hero h1{font-family:var(--head);font-weight:800;font-size:clamp(2.6rem,6.4vw,5rem);line-height:1;letter-spacing:-.045em;margin:.35em auto .35em;max-width:14ch}
.g-hero h1 em{font-style:normal;color:var(--teal-hi)}
.g-hero h1 em .w{background:linear-gradient(90deg,var(--teal-hi),var(--yellow));-webkit-background-clip:text;background-clip:text;color:transparent;padding-bottom:.08em}
.g-hero p{color:var(--muted);max-width:58ch;margin-inline:auto;font-size:1.1rem}
.filters{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:34px 0 8px}
.filters button{padding:.55em 1.1em;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-weight:600;font-size:.92rem;transition:background .25s,color .25s,border-color .25s,transform .25s var(--ease)}
.filters button:hover{transform:translateY(-2px);border-color:var(--teal)}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.filters button span{opacity:.55;margin-left:.3em;font-variant-numeric:tabular-nums}

.g-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;padding:30px 0 110px}
.g-card{position:relative;display:flex;flex-direction:column;border-radius:24px;background:var(--surface);border:1px solid var(--line);overflow:hidden;transition:transform .5s var(--ease),box-shadow .4s,border-color .4s,opacity .4s}
.g-card::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(31,191,174,.16),transparent 45%);opacity:0;transition:opacity .3s}
.g-card:hover{box-shadow:var(--shadow);border-color:rgba(31,191,174,.55);transform:perspective(1000px) rotateX(var(--rx,0)) rotateY(var(--ry,0))}
.g-card:hover::after{opacity:1}
.g-card.feat{grid-column:1 / -1;flex-direction:row}
.g-card.feat .g-art{flex:1.25;aspect-ratio:auto;min-height:380px}
.g-card.feat .g-body{flex:1;justify-content:center;padding:44px}
.g-card.feat h2{font-size:clamp(1.8rem,3vw,2.6rem)}
.g-card.hide{display:none}
.g-art{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--soft)}
.g-art img{width:100%;height:100%;object-fit:cover;transform:scale(1.02);transition:transform 1s var(--ease)}
.g-card:hover .g-art img{transform:scale(1.08)}
.g-art .tag{position:absolute;left:16px;top:16px;padding:.35em .8em;border-radius:999px;background:rgba(5,7,6,.82);color:#fff;font-family:var(--cond);font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.75rem}
.g-body{display:flex;flex-direction:column;gap:10px;padding:26px 28px 30px;flex:1}
.g-body h2{font-family:var(--head);font-weight:700;font-size:1.5rem;line-height:1.15;letter-spacing:-.025em}
.g-body p{color:var(--muted);font-size:.98rem}
.g-more{margin-top:auto;padding-top:10px;display:inline-flex;align-items:center;gap:.45em;font-weight:700;color:var(--teal)}
.g-more svg{width:18px;height:18px;transition:transform .3s var(--ease)}
.g-card:hover .g-more svg{transform:translateX(5px)}

/* ===== GUÍA ===== */
.a-hero{padding:112px 0 0}
.a-fig{position:relative;max-width:1100px;margin-inline:auto;border-radius:28px;overflow:hidden;aspect-ratio:21/9;box-shadow:var(--shadow);background:var(--soft)}
.a-fig img{width:100%;height:118%;object-fit:cover;transform:translateY(var(--py,0)) scale(1.04);will-change:transform}
.a-fig figcaption{position:absolute;right:14px;bottom:12px;padding:.3em .7em;border-radius:8px;background:rgba(5,7,6,.7);color:#dfe;font-size:.74rem}
.a-fig figcaption a{text-decoration:underline;text-underline-offset:2px}
.a-head{max-width:860px;margin:44px auto 0;text-align:center}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--teal);font-weight:600}
.a-head h1{font-family:var(--head);font-weight:800;font-size:clamp(2.3rem,5.4vw,4.1rem);line-height:1.02;letter-spacing:-.045em;margin:.3em 0 .35em}
.a-head .lead{color:var(--muted);font-size:1.15rem;max-width:58ch;margin-inline:auto}
.meta{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:22px}
.meta span{display:inline-flex;align-items:center;gap:.45em;padding:.45em .9em;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:.86rem;font-weight:600}
.meta svg{width:15px;height:15px;color:var(--teal)}

.a-layout{display:grid;grid-template-columns:250px minmax(0,720px);justify-content:center;gap:64px;padding:64px 0 40px}
.toc{position:sticky;top:100px;align-self:start;max-height:calc(100vh - 130px);overflow:auto;font-size:.92rem}
.toc b{display:block;font-family:var(--cond);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:.82rem;color:var(--muted);margin-bottom:12px}
.toc ol{list-style:none;border-left:2px solid var(--line)}
.toc a{display:block;padding:6px 0 6px 16px;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);line-height:1.35;transition:color .25s,border-color .25s,padding .25s var(--ease)}
.toc a:hover{color:var(--ink)}
.toc a.on{color:var(--ink);font-weight:600;border-color:var(--teal-hi);padding-left:20px}
.toc-m{display:none}

.prose>*{margin-bottom:18px}
.prose h2{font-family:var(--head);font-weight:800;font-size:clamp(1.65rem,3.2vw,2.15rem);line-height:1.12;letter-spacing:-.035em;margin:64px 0 16px}
.prose h2:first-child{margin-top:0}
.prose h3{font-family:var(--head);font-weight:700;font-size:1.25rem;letter-spacing:-.02em;margin:30px 0 8px}
.prose ul,.prose ol{padding-left:1.25em}
.prose li{margin-bottom:8px}
.prose li::marker{color:var(--teal)}
.prose strong{font-weight:650}
.prose a{color:var(--teal);font-weight:600;text-decoration:underline;text-underline-offset:3px}

.summary{position:relative;padding:30px 32px;border-radius:24px;background:linear-gradient(135deg,var(--deep),#0b4a43);color:var(--deep-ink);overflow:hidden;isolation:isolate}
.summary::before{content:"";position:absolute;z-index:-1;width:300px;height:300px;right:-80px;top:-120px;border-radius:50%;background:radial-gradient(circle,rgba(31,191,174,.6),transparent 65%);animation:float 10s ease-in-out infinite alternate}
.summary b{display:block;font-family:var(--cond);letter-spacing:.16em;text-transform:uppercase;font-size:.85rem;color:var(--teal-hi);margin-bottom:12px}
.summary ul{list-style:none;padding:0;display:grid;gap:12px}
.summary li{position:relative;padding-left:30px;margin:0}
.summary li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;background:var(--teal-hi) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23032' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/11px no-repeat}
.summary strong{color:#fff}

.tip{position:relative;padding:20px 22px 20px 58px;border-radius:18px;background:var(--soft);border:1px solid rgba(31,191,174,.25)}
.tip::before{content:"";position:absolute;left:20px;top:21px;width:24px;height:24px;border-radius:8px;background:var(--teal-hi) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23032' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M12 8v5M12 16.5v.5'/%3E%3C/svg%3E") center/16px no-repeat}
.tip b{display:block;font-weight:700;margin-bottom:2px}

.tbl{overflow-x:auto;border-radius:18px;border:1px solid var(--line);background:var(--surface)}
.tbl table{width:100%;border-collapse:collapse;font-size:.95rem}
.tbl th,.tbl td{text-align:left;padding:14px 18px;vertical-align:top}
.tbl th{background:var(--deep);color:#fff;font-weight:600}
.tbl tr+tr td{border-top:1px solid var(--line)}
.tbl tbody tr{transition:background .2s}
.tbl tbody tr:hover{background:var(--soft)}

.inline-fig{border-radius:20px;overflow:hidden;position:relative}
.inline-fig img{width:100%;height:auto;transition:transform 1s var(--ease)}
.inline-fig:hover img{transform:scale(1.04)}
.inline-fig figcaption{font-size:.78rem;color:var(--muted);margin-top:8px}
.inline-fig figcaption a{color:inherit;font-weight:400}

.faq details{border:1px solid var(--line);border-radius:16px;background:var(--surface);margin-bottom:10px;overflow:hidden;transition:border-color .3s}
.faq details[open]{border-color:rgba(31,191,174,.5)}
.faq summary{list-style:none;cursor:pointer;padding:18px 54px 18px 22px;font-weight:650;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:20px;top:50%;width:22px;height:22px;margin-top:-11px;border-radius:50%;background:var(--soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230c9c8e' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center/13px no-repeat;transition:transform .35s var(--ease)}
.faq details[open] summary::after{transform:rotate(135deg)}
.faq details p{padding:0 22px 20px;color:var(--muted);margin:0}

/* Herramientas interactivas */
.tool{border-radius:26px;padding:30px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);position:relative;overflow:hidden}
.tool::before{content:"";position:absolute;inset:0 0 auto;height:4px;background:linear-gradient(90deg,var(--teal-hi),var(--yellow))}
.tool-h{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.tool-h .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--soft);color:var(--teal)}
.tool-h .ic svg{width:22px;height:22px}
.tool-h h3{margin:0;font-family:var(--head);font-weight:800;font-size:1.3rem;letter-spacing:-.02em}
.tool>p{color:var(--muted);font-size:.95rem;margin-bottom:20px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{display:block;font-weight:600;font-size:.88rem;margin-bottom:8px}
.field output,.field .val{float:right;font-variant-numeric:tabular-nums;color:var(--teal);font-weight:700}
.field input[type=number],.field select{width:100%;padding:.75em .9em;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit}
.field input[type=number]:focus,.field select:focus{outline:2px solid var(--teal-hi);outline-offset:1px}
input[type=range]{width:100%;accent-color:var(--teal-hi);height:28px}
.seg{display:flex;gap:6px;padding:5px;border-radius:14px;background:var(--bg);border:1px solid var(--line)}
.seg button{flex:1;padding:.55em .4em;border-radius:10px;font-weight:600;font-size:.9rem;color:var(--muted);transition:background .25s,color .25s}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.result{margin-top:22px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.result div{padding:16px;border-radius:16px;background:var(--soft);text-align:center}
.result b{display:block;font-family:var(--head);font-weight:800;font-size:1.6rem;letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:var(--ink);transition:transform .3s var(--ease)}
.result b.pop{animation:pop .45s var(--ease)}
@keyframes pop{40%{transform:scale(1.12);color:var(--teal)}}
.result span{font-size:.8rem;color:var(--muted)}
.verdict{margin-top:14px;padding:14px 16px;border-radius:14px;border:1px dashed rgba(31,191,174,.5);font-size:.95rem}
.small{font-size:.8rem;color:var(--muted);margin-top:10px}

/* Gráfico de switches */
.sw{display:grid;grid-template-columns:150px 1fr;gap:26px;align-items:center}
.keycap{position:relative;width:130px;height:150px;margin-inline:auto}
.keycap .cap{position:absolute;left:15px;top:10px;width:100px;height:86px;border-radius:16px;background:linear-gradient(180deg,#fff,#dfe6e5);box-shadow:inset 0 -8px 0 #c3cfcd,0 10px 20px -8px rgba(0,0,0,.4);animation:press 1.8s var(--ease) infinite}
:root:not([data-theme="light"]) .keycap .cap{background:linear-gradient(180deg,#2a3533,#1a2321);box-shadow:inset 0 -8px 0 #0f1514,0 10px 20px -8px rgba(0,0,0,.6)}
.keycap .stem{position:absolute;left:50px;top:96px;width:30px;height:24px;border-radius:4px;background:var(--stem,#e53b3b);animation:press 1.8s var(--ease) infinite}
.keycap .base{position:absolute;left:5px;bottom:0;width:120px;height:34px;border-radius:10px;background:rgba(127,140,138,.35)}
@keyframes press{0%,15%{transform:none}35%,55%{transform:translateY(16px)}75%,100%{transform:none}}
.keycap .click{position:absolute;right:-4px;top:4px;font-family:var(--cond);font-weight:700;color:var(--teal);opacity:0;animation:clk 1.8s infinite}
@keyframes clk{0%,28%{opacity:0;transform:scale(.6)}34%{opacity:1;transform:scale(1.15)}50%,100%{opacity:0}}
.curve svg{width:100%;height:auto}
.curve .grid line{stroke:var(--line)}
.curve .axis{fill:var(--muted);font-size:11px;font-family:var(--body)}
.curve path.f{fill:none;stroke:var(--teal-hi);stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:600;stroke-dashoffset:600;animation:draw 1.2s var(--ease) forwards}
.curve circle{fill:var(--yellow);stroke:var(--ink);stroke-width:2}
@keyframes draw{to{stroke-dashoffset:0}}
.sw-desc{margin-top:16px;font-size:.95rem}

/* CTA y relacionadas */
.g-cta{position:relative;max-width:1100px;margin:40px auto 0;padding:56px 40px;border-radius:30px;text-align:center;color:#f2f5f4;background:#050706;overflow:hidden;isolation:isolate}
.g-cta::before,.g-cta::after{content:"";position:absolute;z-index:-1;border-radius:50%}
.g-cta::before{width:520px;height:520px;left:-160px;top:-240px;background:radial-gradient(circle,rgba(31,191,174,.5),transparent 65%)}
.g-cta::after{width:480px;height:480px;right:-170px;bottom:-260px;background:radial-gradient(circle,rgba(233,207,29,.3),transparent 65%)}
.g-cta h2{font-family:var(--head);font-weight:800;font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.02;letter-spacing:-.04em}
.g-cta p{color:#a9b8b5;margin:14px auto 26px;max-width:46ch}
.g-cta .ctas{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.g-cta .btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:#fff}
.related{max-width:1100px;margin:70px auto 100px}
.related h2{font-family:var(--head);font-weight:800;font-size:1.6rem;letter-spacing:-.03em;margin-bottom:20px}
.related .g-grid{padding:0}

footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
footer nav{display:flex;gap:22px;flex-wrap:wrap}
footer nav a:hover{color:var(--ink)}

.to-top{position:fixed;right:20px;bottom:20px;z-index:40;width:48px;height:48px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;box-shadow:0 10px 30px -10px rgba(0,0,0,.5);opacity:0;transform:translateY(20px) scale(.8);pointer-events:none;transition:opacity .3s,transform .4s var(--ease)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top svg{width:20px;height:20px}

@media (max-width:1020px){
  .a-layout{grid-template-columns:minmax(0,720px);gap:0}
  .toc{display:none}
  .toc-m{display:block;margin-bottom:28px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
  .toc-m summary{cursor:pointer;padding:16px 20px;font-weight:700}
  .toc-m ol{padding:0 20px 18px 40px;color:var(--teal)}
  .toc-m li{padding:3px 0}
  .toc-m a{color:var(--ink)}
}
@media (max-width:900px){
  .nav ul{display:none}
  .g-grid{grid-template-columns:1fr}
  .g-card.feat{flex-direction:column}
  .g-card.feat .g-art{min-height:0;aspect-ratio:16/9}
  .g-card.feat .g-body{padding:26px 28px 30px}
  .a-fig{aspect-ratio:16/10;border-radius:20px}
  .sw{grid-template-columns:1fr}
}
@media (max-width:600px){
  body{font-size:16px}
  .wrap{width:calc(100% - 32px)}
  .g-hero{padding:56px 0 24px}
  .a-hero{padding:88px 0 0}
  .a-fig{border-radius:18px}
  .logo .logo-wordmark{height:26px}
  .nav .btn{padding:.6em 1em;font-size:.82rem}
  .nav-r{gap:8px}
  .theme{width:36px;height:36px}
  .fields{grid-template-columns:1fr}
  .result{grid-template-columns:1fr 1fr}
  .result div:last-child{grid-column:1 / -1}
  .tool{padding:24px 20px}
  .g-cta{padding:44px 22px;border-radius:24px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js [data-rv]:not(.in),.words .w{opacity:1;transform:none;filter:none}
  .curve path.f{stroke-dashoffset:0}
}

/* Portada: periféricos flotando */
.g-hero{min-height:min(88vh,760px);display:flex;align-items:center}
.g-hero .wrap{position:relative;z-index:2}
.scene{position:absolute;inset:72px 0 0;z-index:0;pointer-events:none;contain:layout paint}
.g-hero.off .scene *{animation-play-state:paused!important}
.fl{position:absolute;left:var(--x);top:var(--y);width:var(--w);will-change:transform;
  transform:translate3d(calc(var(--mx,0) * var(--dp) * 1px),calc(var(--my,0) * var(--dp) * 1px),0);
  transition:transform .9s cubic-bezier(.2,.7,.2,1);opacity:0;animation:flIn 1.2s var(--ease) forwards;animation-delay:calc(var(--dp) * 8ms)}
@keyframes flIn{from{opacity:0;scale:.6;filter:blur(8px)}to{opacity:1;scale:1;filter:none}}
.fl::after{content:"";position:absolute;left:4%;right:4%;bottom:-10%;height:16%;border-radius:50%;background:radial-gradient(closest-side,rgba(31,191,174,.5),transparent);animation:shadow var(--dur) ease-in-out infinite;animation-delay:var(--dl,0s)}
.bob{position:relative;rotate:var(--r);will-change:transform;animation:bob var(--dur) ease-in-out infinite;animation-delay:var(--dl,0s);filter:drop-shadow(0 24px 30px rgba(0,0,0,.55))}
.bob svg{width:100%;height:auto;display:block}
.photo .bob{filter:none}
.photo .bob img{width:100%;height:auto;display:block;filter:drop-shadow(0 28px 22px rgba(0,0,0,.6))}
.photo::after{background:radial-gradient(closest-side,rgba(0,0,0,.7),transparent);bottom:-6%}
@keyframes bob{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-22px) rotate(5deg)}}
@keyframes shadow{0%,100%{opacity:.9;transform:scaleX(1)}50%{opacity:.45;transform:scaleX(.8)}}
.key b{position:absolute;inset:0 0 10%;display:grid;place-items:center;font-family:var(--cond);font-weight:700;font-size:calc(var(--w) * .42);color:#e8fffb;text-shadow:0 0 12px rgba(31,191,174,.8)}
:root[data-theme="light"] .fl::after{background:radial-gradient(closest-side,rgba(12,156,142,.35),transparent)}
:root[data-theme="light"] .bob{filter:drop-shadow(0 24px 26px rgba(6,42,38,.28))}
/* Toque Medusa: topografía, partículas, avatar y sticker holográfico */
.scene .topo{position:absolute;inset:-10% -5%;width:110%;height:120%;opacity:1;transform:translate3d(calc(var(--mx,0) * -14px),calc(var(--my,0) * -14px),0);transition:transform 1.2s var(--ease)}
.scene .topo path{fill:none;stroke:rgba(255,255,255,.1);stroke-width:1.1}
:root[data-theme="light"] .scene .topo path{stroke:rgba(10,18,17,.09)}
.sparks i{position:absolute;left:var(--px);bottom:-10px;width:var(--ps);height:var(--ps);border-radius:50%;background:var(--teal-hi);box-shadow:0 0 10px 2px rgba(31,191,174,.8);opacity:0;animation:spark var(--pd) linear infinite;animation-delay:var(--pdl)}
.sparks i:nth-child(3n){background:var(--yellow);box-shadow:0 0 10px 2px rgba(233,207,29,.7)}
@keyframes spark{0%{opacity:0;transform:translate(0,0) scale(.6)}15%{opacity:.9}70%{opacity:.6}100%{opacity:0;transform:translate(24px,-640px) scale(1)}}
@keyframes spin{to{transform:rotate(1turn)}}
.holo{position:relative;padding:16px 20px;border-radius:18px;overflow:hidden;background:linear-gradient(135deg,rgba(31,191,174,.18),rgba(5,7,6,.85) 40%,rgba(233,207,29,.14));border:1px solid rgba(159,243,234,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.15),0 0 40px -10px rgba(31,191,174,.7)}
.holo img{width:100%;height:auto;display:block;filter:drop-shadow(0 0 10px rgba(31,191,174,.55))}
.holo::after{content:"";position:absolute;inset:-50% -30%;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.18) 48%,rgba(159,243,234,.12) 52%,transparent 60%);transform:translateX(-70%);animation:sheen 4.5s var(--ease) infinite}
@keyframes sheen{0%,35%{transform:translateX(-70%)}75%,100%{transform:translateX(70%)}}
.sticker::after{display:none}

/* Tarjeta flotante de Instagram */
.igc .bob{display:flex;align-items:center;gap:12px;padding:9px 18px 9px 9px;border-radius:999px;background:linear-gradient(135deg,rgba(13,24,22,.88),rgba(5,7,6,.82));border:1px solid rgba(159,243,234,.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 44px -12px rgba(31,191,174,.75),0 24px 40px -18px rgba(0,0,0,.8);filter:none}
.igc .ring{position:relative;flex:none;width:62px;height:62px;border-radius:50%;padding:3px;isolation:isolate}
.igc .ring::before{content:"";position:absolute;inset:0;z-index:-1;border-radius:50%;background:conic-gradient(#1fbfae,#45ff7c,#e9cf1d,#1fbfae);animation:spin 5s linear infinite}
.igc .ring img{width:100%;height:100%;border-radius:50%;object-fit:cover;border:3px solid #050706}
.igt{display:flex;flex-direction:column;line-height:1.15;color:#eef4f3;white-space:nowrap}
.igh{display:flex;align-items:center;gap:5px;font-size:.78rem;font-weight:600;color:#c9d6d3}
.igh .ig{flex:none;width:18px;height:18px;border-radius:6px;display:grid;place-items:center;background:radial-gradient(circle at 30% 107%,#fdf497 0%,#fdf497 5%,#fd5949 45%,#d6249f 60%,#285aeb 90%)}
.igh .ig svg{width:14px;height:14px;display:block}
.igh .vt{flex:none;width:15px;height:15px}
.igt b{font-family:var(--head);font-weight:800;font-size:1.65rem;letter-spacing:-.03em;margin-top:2px;background:linear-gradient(90deg,#fff,#9ff3ea);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.igt small{font-size:.74rem;color:#93a3a0}
.igc::after{left:20%;right:20%;bottom:-24%;height:30%}
:root[data-theme="light"] .igc .bob{background:linear-gradient(135deg,rgba(255,255,255,.92),rgba(234,246,244,.9));border-color:rgba(12,156,142,.3)}
:root[data-theme="light"] .igt{color:#0a1211}
:root[data-theme="light"] .igh{color:#566664}
:root[data-theme="light"] .igt b{background:linear-gradient(90deg,#0a1211,#0c9c8e);-webkit-background-clip:text;background-clip:text}

@media (max-width:1100px){
  .fl{width:calc(var(--w) * .8)}
  .igc{width:auto;left:calc(50% - 125px);top:1%}
  .t-hide{display:none}
  .sticker{left:41%;top:auto;bottom:2%}
  .g-hero{padding-bottom:110px}
}
@media (max-width:600px){
  .g-hero{min-height:0;padding:150px 0 30px}
  .fl{width:calc(var(--w) * .55)}
  .m-hide{display:none}
  /* Celular: toda la escena en una franja arriba del texto, sin nada cortado */
  .g-hero{padding-top:334px}
  .fl{transform:none}
  .igc{left:0;right:0;margin-inline:auto;width:max-content;top:16px}
  .igc .ring{width:54px;height:54px}
  .igt b{font-size:1.45rem}
  .mA,.mB{width:62px;top:134px}
  .mA{left:30px}
  .mB{left:auto;right:42px}
  .sticker{display:none}
}
@media (prefers-reduced-motion:reduce){
  .sparks{display:none}
}

/* Fondo de cada guía igual al de la home: topografía + brillo verde agua */
main{position:relative;isolation:isolate}
.page-bg{position:absolute;inset:0 0 auto;height:min(100vh,980px);z-index:-1;overflow:hidden;pointer-events:none}
.page-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(55% 50% at 78% 42%,rgba(31,191,174,.18),transparent 70%),linear-gradient(180deg,transparent 55%,var(--bg))}
.page-bg .topo{position:absolute;inset:0;width:100%;height:100%}
.page-bg .topo path{fill:none;stroke:rgba(255,255,255,.1);stroke-width:1.1}
:root[data-theme="light"] .page-bg .topo path{stroke:rgba(10,18,17,.09)}
:root[data-theme="light"] .page-bg::after{background:radial-gradient(55% 50% at 78% 42%,rgba(12,156,142,.14),transparent 70%),linear-gradient(180deg,transparent 55%,var(--bg))}

/* Menú en celular */
.menu-btn{display:none;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.14);background:none;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0}
.menu-btn span{display:block;width:16px;height:2px;border-radius:2px;background:#f2f5f4;transition:transform .3s,opacity .2s}
.nav.open .menu-btn span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav.open .menu-btn span:nth-child(2){opacity:0}
.nav.open .menu-btn span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:980px){
  .menu-btn{display:flex}
  .nav.open{background:rgba(5,7,6,.97)!important;border-color:rgba(255,255,255,.09)}
  .nav.open ul{display:flex;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;padding:8px 20px 18px;background:rgba(5,7,6,.97);border-bottom:1px solid rgba(255,255,255,.09)}
  .nav.open ul li a{display:block;padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.07);font-size:1.05rem;color:#f2f5f4}
  .nav.open ul li:last-child a{border-bottom:0}
  .nav.open ul li a[aria-current]{color:#1fbfae}
}
@media (max-width:600px){ .menu-btn{width:36px;height:36px} }