@charset "UTF-8";
:root{--bg:#f2f8fd;--surface:#ffffff;--surface-alt:#e6f3fc;--line:#b9d4e6;--text:#153652;--muted:#49677d;--accent:#17669e;--ink:#153652;--highlight:#BFE3FA;--radius:16px;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg);color-scheme:light;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}a,button,input,select,textarea{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img,video{max-width:100%}button,a{touch-action:manipulation}button{cursor:pointer}.wrap{width:min(1280px,calc(100% - 96px));margin-inline:auto}.skip-link{position:absolute;top:-100px;left:12px;background:var(--highlight);color:var(--ink);padding:12px;z-index:10}.skip-link:focus{top:12px}.site-header{min-height:102px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:2rem}.brand{display:inline-flex;align-items:center;gap:10px;font-size:30px;font-weight:700;letter-spacing:-1px;line-height:1.1}.brand-tag{font-size:12px;letter-spacing:1.5px;line-height:1.4;max-width:85px;margin-left:12px;padding-left:18px;border-left:1px solid var(--line);color:var(--muted)}nav{display:flex;gap:34px;align-items:center}nav a{font-size:14px;color:var(--muted);padding:10px 0}nav a:hover,nav a[aria-current]{color:var(--text)}nav a[aria-current]{box-shadow:0 2px var(--accent)}nav a:last-child{border:1px solid #8eb8d6;border-radius:100px;padding:9px 18px}nav a:last-child span{margin-left:12px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:58px;align-items:center;padding-block:82px 74px}.eyebrow,.small-label{font-family:Consolas,'Courier New',monospace;font-size:12px;letter-spacing:1.5px;font-weight:500;color:var(--muted)}.eyebrow{margin:0 0 25px;display:flex;align-items:center;gap:10px}.square{width:7px;height:7px;display:inline-block;background:var(--accent)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(3.2rem,5vw,4.6rem);line-height:1.07;letter-spacing:-3.5px;margin-bottom:27px;font-weight:500}h1 em{font-family:Georgia,serif;color:var(--accent);font-weight:400}h2{font-size:clamp(2rem,3vw,2.8rem);line-height:1.17;letter-spacing:-1.7px;font-weight:500;margin-bottom:16px}h3{font-size:1.4rem;line-height:1.3;letter-spacing:-.5px;font-weight:500}.lead{font-size:18px;line-height:1.7;color:var(--muted);max-width:470px}.hero-actions{display:flex;align-items:center;gap:22px;margin-top:34px}.button{background:var(--highlight);color:var(--ink);border:0;border-radius:6px;padding:14px 21px;font-size:14px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:27px;transition:background .2s,transform .2s}.button:hover{background:#a8d7f6;transform:translateY(-2px)}.button:disabled{opacity:.7;cursor:wait}.reading{font-size:12px;color:var(--muted)}.network-panel{margin:0;border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:radial-gradient(ellipse at 55% 50%,#BFE3FA 0%,#e6f3fc 65%);overflow:hidden}.panel-top{display:flex;justify-content:space-between;align-items:center;gap:12px;font-family:Consolas,monospace;font-size:12px;letter-spacing:1px;color:#365e7a}.pill{font-family:Arial,sans-serif;border:1px solid #8eb8d6;border-radius:30px;padding:4px 8px;letter-spacing:0;font-size:12px;color:var(--muted)}.network-svg{display:block;width:100%;height:auto;margin-top:5px}.network-labels{display:grid;grid-template-columns:1fr 1fr 1fr;text-align:center;font-family:Consolas,monospace;font-size:12px;color:var(--accent);gap:5px}.network-panel figcaption{font-size:12px;line-height:1.5;color:var(--muted);border-top:1px solid var(--line);margin-top:21px;padding-top:16px}.connections line{stroke:#417ea8;stroke-width:1;opacity:.32}.nodes circle{fill:#e6f3fc;stroke:#347cab;stroke-width:1.5}.nodes .input{fill:#ffffff;stroke:#417ea8}.nodes .output{fill:var(--accent);stroke:var(--accent)}.intro-strip{border-block:1px solid var(--line);padding:23px 0;display:flex;justify-content:space-between;align-items:center;gap:24px}.breadcrumb{display:flex;gap:20px;align-items:center;font-size:14px}.breadcrumb b{color:#417ea8;font-size:22px;font-weight:400}.breadcrumb strong{font-weight:400;color:var(--accent)}.strip-note{font-size:12px;color:var(--muted)}.section{padding-block:76px}.section-heading{display:flex;justify-content:space-between;gap:60px;align-items:end;margin-bottom:34px}.section-heading .eyebrow{color:var(--accent);margin-bottom:18px}.section-heading>p{max-width:375px;color:var(--muted);font-size:16px;margin-bottom:18px}.concept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.concept-card{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:29px}.card-number{font-family:Consolas,monospace;color:var(--accent);font-size:13px;display:inline-block;margin-bottom:30px}.concept-card p{color:var(--muted);line-height:1.7}.card-key{font-family:Consolas,monospace;font-size:12px;letter-spacing:1.8px;color:#365e7a;display:block;border-top:1px solid var(--line);padding-top:20px;margin-top:24px}.site-footer{border-top:1px solid var(--line);padding-top:45px;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:35px}.site-footer p{font-size:14px;color:var(--muted);margin-top:15px}.site-footer .small-label{display:block;margin-bottom:16px}.site-footer>div>a:not(.brand){display:block;font-size:14px;margin:8px 0;color:#365e7a}.site-footer a:hover{color:var(--accent)}.footer-bottom{grid-column:1/-1;display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:21px 0;font-size:12px;color:var(--muted)}
@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.hero{gap:28px}.brand-tag,.strip-note{display:none}.hero-actions{flex-wrap:wrap;gap:12px}h1{font-size:3.6rem}.section-heading{gap:30px}.breadcrumb{gap:13px}.network-panel{padding:19px}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.site-header{min-height:85px;gap:20px}.brand{font-size:25px}.brand img{width:29px;height:29px}nav{gap:17px}nav a{font-size:13px}nav a:last-child{padding:8px 0;border:0}nav a:last-child span{display:none}.hero{grid-template-columns:1fr;padding-block:48px;gap:35px}h1{font-size:clamp(2.8rem,11vw,4rem);letter-spacing:-2px}.eyebrow{font-size:12px;letter-spacing:1px}.lead{font-size:17px;max-width:100%}.hero-actions{gap:18px}.network-panel{padding:21px}.network-svg{max-height:330px}.intro-strip{align-items:start;flex-direction:column;gap:12px}.breadcrumb{font-size:12px;gap:9px;flex-wrap:wrap}.section{padding-block:48px}.section-heading{display:block}.section-heading>p{max-width:none;margin-top:22px}.concept-grid{grid-template-columns:1fr}.concept-card{padding:26px}.card-number{margin-bottom:20px}.site-footer{grid-template-columns:1fr 1fr;gap:25px}.site-footer>div:first-child{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:7px}.reading{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media(max-width:360px){.site-header{flex-wrap:wrap;gap:10px;padding-block:18px}.site-header nav{width:100%;justify-content:space-between}}

/* Contenido educativo y páginas interiores */
.learning-section{background:#e6f3fc;border-block:1px solid var(--line)}.process-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:90px;align-items:start}.process-list{list-style:none;padding:0;margin:0}.process-list li{display:flex;gap:23px;padding:22px 0;border-bottom:1px solid var(--line)}.process-list li:first-child{padding-top:0}.process-list li>span{font-family:Consolas,monospace;color:var(--accent);font-size:13px;padding-top:5px}.process-list h3{font-size:20px;margin-bottom:8px}.process-list p{color:var(--muted);margin-bottom:0}.note-panel{background:#BFE3FA;border:1px solid #8eb8d6;border-radius:var(--radius);padding:32px}.note-panel h3{font-size:30px;line-height:1.15}.note-panel p{color:#294e6b}.note-panel p:last-child{margin-bottom:0}.note-symbol{font-size:60px;font-family:Georgia,serif;color:var(--accent);line-height:1;display:block;margin-bottom:38px}.note-panel .eyebrow{font-size:12px;color:var(--accent)}.text-link{color:var(--accent);font-size:14px;text-decoration:underline;text-underline-offset:6px;display:inline-block}.text-link:hover{color:#153652}.applications{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.applications article{border-top:1px solid #8eb8d6;padding-top:25px}.application-tag{font-family:Consolas,monospace;font-size:12px;letter-spacing:1.5px;color:var(--accent);display:block;margin-bottom:28px}.applications h3{font-size:24px}.applications p{color:var(--muted)}.example{font-size:12px;color:#49677d}.media-section{padding-top:10px}.media-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:30px}.media-grid>div,.audio-panel{min-width:0}.media-video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#d9edf9;border-radius:var(--radius);border:1px solid var(--line)}.media-audio{display:block;width:100%;height:180px;border:0;border-radius:8px;background:#edf6fc;margin:24px 0}.media-caption a{font-size:inherit}.media-caption{font-size:12px;color:var(--muted);margin-top:12px}.audio-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;align-self:start}.audio-panel .eyebrow{color:var(--accent);font-size:12px}.audio-panel h3{font-size:26px}.audio-panel p{color:var(--muted)}audio{display:block;width:100%;margin:24px 0}details{border-top:1px solid var(--line);padding-top:16px;font-size:14px}summary{cursor:pointer;color:#294e6b}details p{margin-top:15px}.sources-section{display:flex;gap:50px;align-items:start;padding-bottom:55px}.sources-section>.small-label{white-space:nowrap;padding-top:4px}.sources-section p{font-size:14px;color:var(--muted);margin:0}.sources-section a{color:#17669e;text-decoration:underline;text-underline-offset:3px}.page-intro{padding-block:68px 56px}.page-intro .eyebrow{color:var(--accent)}.page-intro .lead{max-width:615px}.about-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:start}.about-intro>article p:not(.eyebrow){color:var(--muted)}.about-intro .note-panel{padding:23px}.small-note{font-size:14px}.architecture-list article{display:grid;grid-template-columns:110px 1fr 215px;gap:35px;border-top:1px solid var(--line);padding-block:32px}.architecture-list article:last-child{border-bottom:1px solid var(--line)}.architecture-code{font-size:30px;color:var(--accent);font-family:Consolas,monospace;letter-spacing:-2px}.architecture-list p{color:var(--muted)}.architecture-list h3{font-size:24px}.architecture-use{font-size:12px;color:var(--muted);padding-top:9px}.limits-layout{display:grid;grid-template-columns:1fr 1.3fr;gap:90px}.limits-list{padding:0;margin:0;list-style:none}.limits-list li{padding-left:23px;border-left:2px solid #347cab;margin-bottom:27px}.limits-list li:last-child{margin-bottom:0}.limits-list h3{font-size:20px;margin-bottom:8px}.limits-list p{color:var(--muted);margin-bottom:0}.source-list{list-style:decimal-leading-zero;padding-left:35px;color:var(--accent)}.source-list li{border-top:1px solid var(--line);padding-left:12px}.source-list a{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:20px 0;color:var(--text)}.source-list a:hover{color:var(--accent)}.source-list small{display:block;color:var(--muted);font-size:14px;margin-top:5px}.contact-layout{display:grid;grid-template-columns:.8fr 1.3fr;gap:90px;padding-bottom:90px}.contact-aside{padding-top:27px}.contact-aside h2{font-size:32px}.contact-aside>p:not(.eyebrow){color:var(--muted)}.contact-detail{border-top:1px solid var(--line);padding-top:23px;margin-top:26px}.contact-detail .small-label{font-size:12px;color:var(--accent)}.contact-detail p{margin-top:10px}.contact-detail p span{color:var(--muted);font-size:14px}.contact-detail a{text-decoration:underline;text-underline-offset:4px;color:#17669e}.form-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:34px}.form-intro{font-size:13px;color:var(--muted);margin-bottom:28px}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}.field{margin-bottom:19px}.field label{display:block;font-size:14px;margin-bottom:8px}.field input,.field select,.field textarea{width:100%;max-width:100%;border:1px solid #729bb8;background:#f7fbfe;color:var(--text);padding:12px 13px;border-radius:5px;font-size:16px;min-height:49px}.field input::placeholder,.field textarea::placeholder{color:#58758a}.field textarea{resize:vertical;min-height:150px}.field input[aria-invalid=true],.field select[aria-invalid=true],.field textarea[aria-invalid=true]{border-color:#ad3345}.field-error{display:block;color:#ad3345;font-size:13px;line-height:1.4;margin-top:6px}.field-error:empty{display:none}.field-hint{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:12px;margin-top:6px}.consent-field{margin:8px 0 24px}.consent-field label{display:flex;align-items:start;gap:12px;font-size:13px;color:#365e7a}.consent-field input{accent-color:var(--accent);width:19px;height:19px;flex-shrink:0;margin:2px 0}.privacy-note{color:var(--muted);font-size:12px;line-height:1.5;margin:18px 0 0}.form-status:not(:empty){padding:16px;border:1px solid var(--accent);border-radius:6px;color:var(--accent);font-size:14px;margin-top:20px}.form-status.error{color:#ad3345;border-color:#ad3345}
@media(max-width:1050px){.process-layout,.about-intro,.limits-layout,.contact-layout{gap:40px}.architecture-list article{grid-template-columns:90px 1fr}.architecture-use{grid-column:2}.media-grid{grid-template-columns:1.1fr 1fr}.form-panel{padding:25px}.field-row{gap:16px}.applications{gap:25px}}
@media(max-width:760px){.process-layout,.media-grid,.about-intro,.limits-layout,.contact-layout{grid-template-columns:1fr;gap:32px}.applications{grid-template-columns:1fr;gap:30px}.application-tag{margin-bottom:18px}.sources-section{flex-direction:column;gap:12px}.page-intro{padding-block:47px 28px}.about-intro>article{order:0}.architecture-list article{grid-template-columns:60px 1fr;gap:16px;padding-block:25px}.architecture-code{font-size:24px}.architecture-list h3{font-size:22px}.architecture-use{grid-column:2;padding:0}.contact-layout{padding-bottom:50px}.contact-aside{padding-top:0}.contact-aside>.eyebrow{display:none}.field-row{grid-template-columns:1fr;gap:0}.form-panel{padding:24px 20px}.field-hint{flex-wrap:wrap}.form-panel .button{width:100%}.note-symbol{margin-bottom:20px}.note-panel{padding:26px}}

/* La portada ocupa la primera pantalla; el contenido continúa al desplazarse. */
@media (min-width:1051px) {
  :root { --desktop-header:88px; --desktop-strip:84px; }
  .wrap { width:min(1600px,90%); }
  .site-header { min-height:var(--desktop-header); }
  .hero {
    min-height:calc(100svh - var(--desktop-header) - var(--desktop-strip));
    grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
    gap:clamp(36px,4.5vw,86px);
    padding-block:clamp(28px,5svh,64px);
  }
  .hero h1 { font-size:clamp(3.5rem,4.7vw,5.5rem); }
  .hero .lead { max-width:52ch; font-size:clamp(18px,1.15vw,21px); }
  .network-svg { height:clamp(230px,38svh,410px); }
  .intro-strip { min-height:var(--desktop-strip); padding-block:18px; }
  .about-intro>article p,.process-list p,.architecture-list p { max-width:68ch; }
}