:root{--navy:#07162a;--navy2:#0b2445;--cyan:#50e4ef;--ink:#12233d;--muted:#4d5c71;--line:#dce6f1}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fff}a{color:inherit}.wrap{width:min(1180px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:10px;z-index:99}.skip:focus{left:12px}.preview{background:#d9f8fa;color:#063647;text-align:center;font-size:11px;font-weight:800;letter-spacing:.16em;padding:8px}.site-header{background:#07162a;color:#fff;border-bottom:1px solid #23445e}.nav{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:78px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:Georgia,serif;font-size:clamp(18px,2vw,27px)}.brand img{width:58px;height:38px;object-fit:contain}.nav nav{display:flex;gap:25px;flex-wrap:wrap}.nav nav a{text-decoration:none;font-size:14px;color:#dceaf6}.nav nav a:hover,.nav nav a:focus-visible{color:var(--cyan)}.hero{background:radial-gradient(circle at 77% 50%,#164f87 0,#0b2a50 29%,#07162a 69%);color:white;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1.12fr;align-items:center;min-height:560px;gap:24px}.hero-copy{padding:35px 0 55px;position:relative;z-index:1}.hero-logo{width:190px;height:110px;object-fit:contain;object-position:left;margin-bottom:8px}.eyebrow{letter-spacing:.34em;color:#9fe9f1;font-size:12px;font-weight:700}.eyebrow span{color:var(--cyan)}h1,h2{font-family:Georgia,"Times New Roman",serif}h1{font-size:clamp(40px,4.5vw,66px);font-weight:500;line-height:1.08;margin:13px 0 22px}.lead{font-size:clamp(16px,1.7vw,20px);line-height:1.65;color:#e2eaf4;max-width:540px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:31px}.button{display:inline-flex;align-items:center;justify-content:center;gap:13px;padding:15px 22px;border-radius:999px;text-decoration:none;font-weight:750;font-size:14px;transition:transform .15s}.button:hover{transform:translateY(-2px)}.primary{background:var(--cyan);color:#052039}.outline{border:1px solid var(--cyan);color:#fff}.dark{background:#092847;color:#fff}.science-art{min-height:520px;position:relative;isolation:isolate;background:radial-gradient(circle at 51% 53%,#1aa7df55,transparent 37%),repeating-linear-gradient(0deg,transparent 0 49px,#5ad9ff0b 50px),repeating-linear-gradient(90deg,transparent 0 49px,#5ad9ff0b 50px)}.science-art:before{content:"";position:absolute;inset:15px;background-image:radial-gradient(#c7f9ff 1px,transparent 1.5px);background-size:39px 37px;opacity:.45;mask-image:radial-gradient(ellipse,black,transparent 76%)}.orbit{position:absolute;left:16%;top:32%;width:77%;height:37%;border:2px solid #49d7ff99;border-radius:50%;box-shadow:0 0 24px #2ed8ff55,inset 0 0 20px #2ed8ff22;transform:rotate(-26deg)}.orbit-two{transform:rotate(26deg);border-color:#91e8ff88}.orbit-three{transform:rotate(90deg);border-color:#63a9ff66}.core{position:absolute;left:53%;top:49%;width:23px;height:23px;border-radius:50%;background:#c4fcff;box-shadow:0 0 15px 6px #47e4ff,0 0 70px 23px #298dff88}.eq{position:absolute;color:#f1fbff;font-family:Cambria,"Cambria Math",Georgia,serif;font-size:clamp(17px,1.8vw,25px);text-shadow:0 0 14px #66dfff;white-space:nowrap;z-index:1}.eq b{font-style:italic;font-weight:400}.eq-one{left:4%;top:9%}.eq-two{right:4%;top:19%}.eq-three{left:1%;top:71%}.eq-four{right:0;top:80%;font-size:clamp(15px,1.5vw,21px)}.eq-newton{left:32%;top:43%;font-size:clamp(30px,3vw,44px);display:flex;flex-direction:column;align-items:center}.eq-newton small{font:700 9px system-ui;letter-spacing:.16em;margin-top:9px;color:#a6effb}.art-caption{position:absolute;left:6%;bottom:6%;font-size:10px;letter-spacing:.2em;color:#a3dce8}.features{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:30px;margin-bottom:55px}.feature{padding:24px;border-radius:15px;min-height:220px}.feature h2{font-size:22px;margin:12px 0 8px}.feature p{font-size:15px;line-height:1.55;color:var(--muted);margin:0 0 18px}.feature a{font-size:14px;font-weight:750;text-decoration:none}.feature a:hover{text-decoration:underline}.blue{background:#edf7ff}.green{background:#ebfaf6}.purple{background:#f2f0ff}.orange{background:#fff5e9}.community{background:#eef8fb}.feature-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:#2364a4;color:white;font-size:27px}.green .feature-icon{background:#149b87}.purple .feature-icon{background:#6754c7}.orange .feature-icon{background:#ef9a29}.community .feature-icon{background:#087f9c}.info{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center;border-top:1px solid var(--line);padding:50px 0}.section-label{font-size:11px;letter-spacing:.2em;font-weight:800;color:#007f9a}.info h2,.library h2{font-size:clamp(28px,3vw,39px);font-weight:500;margin:8px 0}.info>p,.library p:not(.section-label){line-height:1.75;color:var(--muted)}.library{background:#eaf7fc;border-radius:18px;padding:35px 40px;display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:65px}.library>div{max-width:710px}footer{background:#07162a;color:#c5d5e4;font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:25px 0}@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-copy{padding-bottom:10px}.science-art{min-height:370px;margin-top:-15px}.features{grid-template-columns:repeat(2,1fr)}.nav{align-items:flex-start;padding:13px 0;flex-direction:column}.nav nav{gap:15px}.eq-four{right:1%}}@media(max-width:560px){.wrap{width:min(100% - 30px,1180px)}.brand{font-size:20px}.nav nav{gap:12px}.nav nav a{font-size:12px}.hero-logo{width:140px;height:85px}.hero-copy{padding-top:20px}.eyebrow{letter-spacing:.18em}.science-art{min-height:320px}.eq{font-size:14px}.eq-four{font-size:11px}.eq-newton{font-size:28px}.features{grid-template-columns:1fr}.feature{min-height:0}.info{grid-template-columns:1fr;gap:0}.library{padding:26px;display:block}.library .button{margin-top:15px}.art-caption{font-size:8px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

/* Portada v2: ecuaciones verificables en MathML y campo vectorial decorativo */
.science-art{min-height:520px;background:radial-gradient(circle at 75% 45%,#124b82 0%,#0a2850 42%,#071b35 100%);overflow:hidden}
.science-art:before{opacity:.3}.field-art{position:absolute;inset:0;background:url("assets/lineas-campo.svg") center/cover no-repeat;filter:drop-shadow(0 0 8px #168eff);pointer-events:none}
.science-art .orbit,.science-art .core,.science-art .art-caption{display:none}
.axis{position:absolute;right:2%;top:4%;width:110px;z-index:2;opacity:.92}
.eq{font-family:"Cambria Math","STIX Two Math",serif;font-size:clamp(19px,1.9vw,28px);line-height:1.4;text-shadow:0 1px 14px #06142b,0 0 15px #55bfff;background:#061a3280;border-radius:9px;padding:3px 8px;z-index:3}
.eq math{font-size:1em;color:#f4fcff}.eq-one{left:3%;top:11%}.eq-two{left:64%;top:27%}.eq-three{left:7%;top:48%}.eq-four{left:45%;top:67%;font-size:clamp(17px,1.65vw,24px)}.eq-five{left:5%;top:81%;font-size:clamp(22px,2.1vw,31px)}
@media(max-width:900px){.science-art{min-height:470px}.eq-one{top:10%}.eq-two{top:29%}.eq-three{top:45%}.eq-four{left:34%;top:65%}.eq-five{top:83%}}
@media(max-width:560px){.science-art{min-height:390px}.axis{width:65px;right:1%;top:2%}.eq{font-size:15px;padding:2px 4px}.eq-one{left:2%;top:12%}.eq-two{left:53%;top:29%}.eq-three{left:2%;top:48%}.eq-four{left:16%;top:65%;font-size:13px}.eq-five{left:3%;top:84%;font-size:19px}}

/* V3: corregir nombres de clases y reservar una zona propia a cada ecuación. */
.science-art{min-height:540px;overflow:hidden}
.science-art .eq{position:absolute;display:block;max-width:calc(100% - 20px);width:max-content;white-space:nowrap;line-height:1.25;padding:5px 8px;font-size:clamp(18px,1.75vw,25px);background:#061a32b8;border:1px solid #86dfff20;box-shadow:0 4px 20px #04132866}
.science-art .eq-one{top:7%;left:5%;right:auto;bottom:auto}
.science-art .eq-two{top:21%;left:auto;right:8%;bottom:auto}
.science-art .eq-three{top:41%;left:4%;right:auto;bottom:auto}
.science-art .eq-four{top:65%;left:auto;right:3%;bottom:auto;font-size:clamp(16px,1.5vw,22px)}
.science-art .eq-five{top:auto;bottom:6%;left:7%;right:auto;font-size:clamp(21px,2vw,29px)}
.science-art .axis{width:112px;right:5%;top:37%;z-index:2;opacity:.98;filter:drop-shadow(0 0 8px #2ddcff)}
.science-art .axis svg{width:100%;height:auto;display:block}
@media(max-width:900px){.science-art{min-height:530px}.science-art .eq-four{right:2%;font-size:17px}.science-art .axis{width:92px;right:5%;top:37%}}
@media(max-width:560px){.science-art{min-height:530px}.science-art .eq{font-size:clamp(14px,3.7vw,18px);padding:4px 5px}.science-art .eq-one{top:5%;left:2%}.science-art .eq-two{top:21%;right:3%}.science-art .eq-three{top:42%;left:2%}.science-art .eq-four{top:65%;right:1%;font-size:clamp(12px,3vw,15px)}.science-art .eq-five{bottom:5%;left:3%;font-size:21px}.science-art .axis{width:75px;top:28%;right:2%}}

/* V4: ecuaciones flotantes sin placas; composición fluida y símbolo nítido. */
.hero{background:radial-gradient(ellipse at 81% 51%,#103b70 0%,#092442 42%,#07162a 78%)}
.hero-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);gap:22px}
.hero-copy{z-index:4}.hero-logo{width:245px;height:145px;filter:drop-shadow(0 0 12px #25d9f52e);margin-bottom:0}
.science-art{min-height:550px;background:radial-gradient(ellipse at 70% 55%,#0c65b68a 0%,#0a2c53 48%,#071a32 100%);overflow:hidden}
.science-art:before{opacity:.55}
.field-art{inset:-3%;background-size:cover;filter:drop-shadow(0 0 14px #0c9aff) saturate(1.35)}
.science-art .eq{position:absolute;z-index:3;display:block;width:max-content;max-width:96%;padding:0;margin:0;border:0;border-radius:0;box-shadow:none;background:transparent;color:#f1fcff;font-size:clamp(18px,1.75vw,25px);line-height:1.2;white-space:nowrap;text-shadow:0 2px 9px #041022,0 0 19px #0b64bd,0 0 5px #83eaff;filter:drop-shadow(0 0 3px #7befff33)}
.science-art .eq-one{top:9%;left:8%;right:auto;bottom:auto}
.science-art .eq-two{top:22%;right:7%;left:auto;bottom:auto}
.science-art .eq-three{top:43%;left:5%;right:auto;bottom:auto}
.science-art .eq-four{top:auto;bottom:11%;right:3%;left:auto;font-size:clamp(15px,1.45vw,21px)}
.science-art .eq-five{top:auto;bottom:14%;left:7%;right:auto;font-size:clamp(22px,2.05vw,30px)}
.science-art .axis{width:104px;right:5%;top:42%;opacity:.97;filter:drop-shadow(0 0 7px #41dcff)}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.science-art{min-height:510px}.science-art .eq-four{bottom:9%;right:2%;font-size:clamp(14px,2.6vw,20px)}.science-art .eq-five{bottom:13%}.science-art .axis{top:40%;right:5%}}
@media(max-width:560px){.hero-logo{width:185px;height:108px}.science-art{min-height:430px}.science-art .eq{font-size:clamp(14px,3.5vw,18px)}.science-art .eq-one{top:8%;left:4%}.science-art .eq-two{top:23%;right:4%}.science-art .eq-three{top:44%;left:3%}.science-art .eq-four{bottom:10%;right:2%;font-size:clamp(11px,2.75vw,15px)}.science-art .eq-five{bottom:18%;left:3%;font-size:clamp(18px,4.5vw,24px)}.science-art .axis{width:72px;right:4%;top:40%}}

/* V5: la composición visual procede de la imagen elegida, no de una recreación. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hero{background:#07162a}.hero-grid{grid-template-columns:minmax(0, .95fr) minmax(0, 1.25fr);gap:0;min-height:500px}
.hero-copy{padding:22px 12px 34px 0}.hero-logo{width:min(350px,85%);height:auto;aspect-ratio:350/178;object-fit:contain;object-position:left center;mix-blend-mode:screen;filter:none;margin:0 0 -7px -7px}
.hero h1{font-size:clamp(39px,4.1vw,62px)}.hero .lead{font-size:clamp(16px,1.5vw,19px);line-height:1.48}
.science-art{min-height:510px;background:#07162a url('assets/campo-aprobado.webp') center center/cover no-repeat;overflow:hidden}
.science-art:before{display:none}.brand img{width:55px;height:35px;object-fit:cover;mix-blend-mode:screen}
@media(min-width:901px){.hero-grid{width:min(1400px,calc(100% - 68px))}.science-art{margin-right:calc((min(1400px,100vw - 68px) - 100vw)/2);background-position:center center}}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-copy{padding:22px 0 20px}.science-art{min-height:clamp(260px,49vw,480px);background-size:cover;background-position:center}}
@media(max-width:560px){.hero-logo{width:250px}.science-art{min-height:250px;background-position:55% center}.hero-copy{padding-bottom:14px}}

/* V6: imagen completa y sin deformación; sin fondo rectangular en el símbolo. */
.hero-grid{grid-template-columns:minmax(0,.95fr) minmax(0,1.25fr);gap:12px}
.hero-copy{padding-right:10px}
.hero-logo{mix-blend-mode:normal;filter:drop-shadow(0 0 11px #42dcff35);margin-left:0}
.brand img{mix-blend-mode:normal;object-fit:contain}
.science-art{min-height:455px;background-color:#07162a;background-image:url('assets/campo-aprobado.webp');background-repeat:no-repeat;background-position:center center;background-size:contain;overflow:visible}
@media(min-width:901px){.hero-grid{width:min(1400px,calc(100% - 68px))}.science-art{margin-right:0;background-position:center center;background-size:contain}}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:0}.science-art{min-height:0;aspect-ratio:1248/519;background-size:contain;background-position:center center;margin:0 0 20px}}
@media(max-width:560px){.science-art{min-height:0;aspect-ratio:1248/519;background-position:center center;background-size:contain}.hero-copy{padding-bottom:10px}}

/* V7: recorte únicamente de los residuos de la portada original (letra y flecha). */
.science-art{background-size:contain;background-position:center center}
@media(max-width:900px){.science-art{aspect-ratio:1168/519}}
@media(max-width:560px){.science-art{aspect-ratio:1168/519}}

/* V8: página independiente de Cursos; la portada V7 conserva su diseño. */
.nav nav a[aria-current="page"]{color:#79eef6;font-weight:700;text-decoration:underline;text-decoration-color:#50e4ef;text-underline-offset:8px}
.course-hero{background:radial-gradient(ellipse at 76% 48%,#104a7c 0%,#092846 42%,#07162a 77%);color:#fff;overflow:hidden}
.course-layout{min-height:590px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:center;gap:45px}
.course-copy{padding:75px 0 80px;position:relative;z-index:1}.course-copy h1{margin:15px 0 35px}.course-quote{border-left:3px solid #50e4ef;padding:4px 0 4px 24px;margin:0 0 34px;max-width:650px}.course-quote p:first-child{font:normal clamp(25px,3vw,38px)/1.25 Georgia,serif;color:#fff;margin:0 0 18px}.course-quote p:last-child{font-size:clamp(16px,1.5vw,19px);line-height:1.65;color:#dceaf6;margin:0}.course-cta{max-width:100%;text-align:center}.course-note{color:#bdd2e6;font-size:13px;margin:17px 0 0;line-height:1.5}
.course-visual{min-height:440px;position:relative;isolation:isolate;background:radial-gradient(circle at 52% 51%,#34e7ff26 0,transparent 32%),radial-gradient(circle at 52% 51%,#1476ba48 0,transparent 56%);filter:drop-shadow(0 0 25px #0f78b540)}.course-visual:before{content:"";position:absolute;inset:8%;background-image:radial-gradient(#a9f7ff 1px,transparent 1.5px);background-size:33px 37px;opacity:.42;mask-image:radial-gradient(ellipse,black,transparent 72%)}.course-orbit{position:absolute;inset:20% 7%;border:2px solid #61e6f9a8;border-radius:50%;box-shadow:0 0 22px #34d9f955,inset 0 0 18px #37dfff2b}.course-orbit-a{transform:rotate(-32deg)}.course-orbit-b{transform:rotate(32deg)}.course-orbit-c{transform:rotate(90deg);border-color:#92d8ff82}.course-point{position:absolute;left:calc(52% - 12px);top:calc(50% - 12px);height:24px;width:24px;border-radius:50%;background:#d9feff;box-shadow:0 0 17px 8px #38e3fa,0 0 80px 24px #198fff80}.course-symbol{position:absolute;right:9%;bottom:6%;font:italic 44px Georgia,serif;color:#a3eaf9;opacity:.8}
.course-next{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:60px 0 75px}.course-next h2{font-size:clamp(27px,3vw,37px);font-weight:500;margin:9px 0}.course-next p:not(.section-label){color:var(--muted);line-height:1.65;max-width:580px}.course-next-links{display:flex;align-items:center;flex-wrap:wrap;gap:20px}.course-text-link{font-size:14px;font-weight:700;color:#075c77;text-decoration:none}.course-text-link:hover{text-decoration:underline}
@media(max-width:900px){.course-layout{grid-template-columns:1fr;gap:0}.course-copy{padding:55px 0 25px}.course-visual{min-height:300px;max-width:600px;width:100%;margin:0 auto 25px}.course-next{align-items:flex-start;flex-direction:column;padding:45px 0 60px}}
@media(max-width:560px){.course-copy{padding:35px 0 20px}.course-copy h1{margin-bottom:25px}.course-quote{padding-left:17px}.course-visual{min-height:240px}.course-next-links{align-items:flex-start;flex-direction:column;gap:18px}}

/* V9: Schwarzschild artwork and real, accessible MathML; the homepage remains unchanged. */
.course-hero{background:#071b32}
.course-layout{grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);gap:22px;min-height:590px}
.course-blackhole{position:relative;min-width:0;min-height:510px;display:flex;flex-direction:column;justify-content:center;align-items:center;overflow:visible;isolation:isolate}
.course-blackhole:before{content:"";position:absolute;inset:0 -9% -2% -8%;background:radial-gradient(ellipse at 54% 62%,#117bb83b,transparent 64%);pointer-events:none}
.schwarzschild-metric{position:relative;z-index:2;width:100%;color:#f0faff;text-shadow:0 0 13px #6acfff88;overflow-x:auto;overflow-y:hidden;scrollbar-width:thin;padding:0 0 8px}
.schwarzschild-metric math{font-size:clamp(12px,1.25vw,17px);white-space:nowrap;min-width:max-content;margin:0 auto}
.course-blackhole img{display:block;position:relative;width:112%;max-width:none;height:auto;object-fit:contain;margin-top:-5px;mask-image:linear-gradient(to bottom,transparent 0%,black 13%,black 96%,transparent 100%)}
@media(max-width:900px){.course-layout{grid-template-columns:1fr;gap:0}.course-blackhole{min-height:0;width:100%;max-width:720px;margin:0 auto 28px}.course-blackhole img{width:100%}.schwarzschild-metric math{font-size:clamp(12px,2.1vw,17px)}}
@media(max-width:560px){.course-blackhole{margin-bottom:20px}.schwarzschild-metric math{font-size:13px}.course-blackhole img{width:105%}}

/* V10: página Recursos; Inicio y Cursos conservan sus estilos. */
.resources-hero{background:radial-gradient(ellipse at 74% 46%,#114b69 0%,#092b49 40%,#07162a 80%);color:#fff;overflow:hidden}.resources-layout{min-height:590px;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:center;gap:34px}.resources-copy{padding:75px 0 80px;position:relative;z-index:1}.resources-copy h1{margin:15px 0 35px}.resources-quote{border-left:3px solid #50e4ef;padding:4px 0 4px 24px;margin:0 0 35px;max-width:640px}.resources-quote p:first-child{font:normal clamp(25px,2.8vw,37px)/1.25 Georgia,serif;color:#fff;margin:0 0 18px}.resources-quote p:last-child{font-size:clamp(16px,1.5vw,19px);line-height:1.65;color:#dceaf6;margin:0}.resources-visual{min-width:0;width:100%;max-width:590px;margin:auto;filter:drop-shadow(0 0 20px #0b91b52e)}.resources-visual svg{display:block;width:100%;height:auto}.resources-next{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:60px 0 75px}.resources-next>div{max-width:750px}.resources-next h2{font-size:clamp(27px,3vw,37px);font-weight:500;margin:9px 0}.resources-next p:not(.section-label){color:var(--muted);line-height:1.7}.resources-next .button{flex-shrink:0}@media(max-width:900px){.resources-layout{grid-template-columns:1fr;gap:0}.resources-copy{padding:55px 0 20px}.resources-visual{max-width:500px;margin:0 auto 25px}.resources-next{align-items:flex-start;flex-direction:column;padding:45px 0 60px}}@media(max-width:560px){.resources-copy{padding:35px 0 15px}.resources-copy h1{margin-bottom:25px}.resources-quote{padding-left:17px}.resources-visual{max-width:360px}}

/* V11: Recursos, red de Ising y ecuaciones independientes; Inicio y Cursos sin cambios. */
.resources-hero{background:#071b32}
.resources-layout{grid-template-columns:minmax(0,.96fr) minmax(0,1.04fr);gap:20px;min-height:590px}
.resources-copy{z-index:2}.resources-copy h1{font-size:clamp(39px,4.3vw,60px)}
.resources-note{font-size:13px;line-height:1.55;color:#bdd2e6;margin:18px 0 0;max-width:430px}
.resources-ising{min-width:0;position:relative;width:100%;padding:14px 0 0;align-self:center;isolation:isolate}
.resources-ising:before{content:"";position:absolute;inset:12% 0 0;background:radial-gradient(ellipse at 60% 58%,#126cb140,transparent 69%);pointer-events:none}
.resources-ising img{display:block;position:relative;width:100%;height:auto;object-fit:contain;mask-image:linear-gradient(to right,transparent 0%,black 7%,black 100%);filter:drop-shadow(0 0 18px #1b7be133)}
.ising-equations{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start;color:#f3fbff;text-shadow:0 0 13px #42a8ff88;z-index:1;padding:0 0 6px}
.ising-equations math{font-size:clamp(16px,1.7vw,24px);white-space:nowrap}
.ising-entropy math+math{margin-top:13px}.ising-spin{display:block;text-align:center;font:italic 19px Georgia,serif;margin-top:10px}
@media(max-width:900px){.resources-layout{grid-template-columns:1fr;gap:0}.resources-ising{max-width:700px;margin:0 auto 30px}.resources-copy{padding-bottom:12px}.ising-equations math{font-size:clamp(16px,3vw,22px)}}
@media(max-width:560px){.resources-ising{padding-top:10px}.ising-equations{gap:8px}.ising-equations math{font-size:clamp(12px,3vw,16px)}.ising-spin{font-size:14px}.resources-ising img{mask-image:none}.resources-note{font-size:12px}}

/* V12: página Acerca del Club. Las tres páginas aprobadas conservan su composición. */
.about-hero{color:#fff;background:radial-gradient(ellipse at 77% 47%,#123d63 0%,#0a2644 42%,#07162a 83%);overflow:hidden}
.about-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;gap:40px;min-height:510px}
.about-intro{padding:75px 0}.about-intro h1{margin:14px 0 20px}.about-lead{font:normal clamp(27px,3vw,39px)/1.3 Georgia,serif;max-width:560px;margin:0 0 22px}.about-intro-note{font-size:17px;line-height:1.7;color:#c9ddeb;max-width:510px}
.about-art{height:370px;position:relative;display:grid;place-items:center;isolation:isolate}.about-art:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#b7f6ff 1px,transparent 1.5px);background-size:34px 31px;opacity:.24;mask-image:radial-gradient(ellipse,black,transparent 75%)}.about-art-glow{position:absolute;width:300px;height:250px;border-radius:50%;background:#23b9e8;filter:blur(95px);opacity:.22}.about-art img{width:min(75%,320px);height:auto;position:relative;filter:drop-shadow(0 0 28px #3ad9f777)}.about-art-orbit{position:absolute;width:85%;height:60%;border:1px solid #6be4ff5e;border-radius:50%;transform:rotate(-26deg);box-shadow:0 0 18px #33d5ff33}.about-art-orbit-two{transform:rotate(29deg);border-color:#a4d4ff55}.about-art-year{position:absolute;right:10%;top:13%;font:italic 35px Georgia,serif;color:#d3faff}.about-art-caption{position:absolute;bottom:8%;font-size:10px;font-weight:700;letter-spacing:.22em;color:#b1eaf4}
.about-story{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;padding:75px 0}.about-story h2,.about-purpose h2{font-size:clamp(29px,3.2vw,42px);font-weight:500;line-height:1.2;margin:10px 0 26px}.about-story-text p,.about-purpose p:not(.section-label){font-size:17px;line-height:1.85;color:#46576d;margin:0 0 21px}.about-date{border-left:3px solid var(--cyan);padding:6px 0 6px 17px;display:flex;flex-direction:column;gap:5px}.about-date strong{font:normal 31px Georgia,serif;color:#0a6e92}.about-date span{font-size:14px;color:#5a6c80}
.about-purpose{background:#eaf7fc}.about-purpose-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;padding:70px 0}.about-links{display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin-top:28px}.about-text-link{font-size:14px;font-weight:750;text-decoration:none;color:#075c77}.about-text-link:hover{text-decoration:underline}.about-closing{text-align:center;padding:75px 0 85px;max-width:850px}.about-closing h2{font-size:clamp(32px,4vw,51px);font-weight:500;line-height:1.2;margin:14px 0 20px}.about-closing>p:last-child{font-size:18px;line-height:1.7;color:#526277;max-width:720px;margin:auto}
@media(max-width:900px){.about-grid,.about-story,.about-purpose-grid{grid-template-columns:1fr;gap:15px}.about-grid{min-height:0}.about-intro{padding:55px 0 5px}.about-art{height:280px;margin-bottom:20px}.about-story,.about-purpose-grid{padding:55px 0}.about-closing{padding:60px 0}}
@media(max-width:560px){.about-intro{padding:35px 0 0}.about-art{height:240px}.about-art-year{font-size:26px}.about-story-text p,.about-purpose p:not(.section-label){font-size:16px}}

/* V13: Contacto y enlace a webmail en el pie de las cinco páginas. */
.footer-mail{color:#a9f3fb;text-decoration:underline;text-underline-offset:3px}.footer-mail:hover,.footer-mail:focus-visible{color:#fff}
.contact-page{min-height:100vh;display:flex;flex-direction:column}.contact-page main{flex:1}
.contact-hero{background:radial-gradient(ellipse at 77% 49%,#123d63 0%,#0a2644 43%,#07162a 84%);color:#fff;overflow:hidden}
.contact-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);align-items:center;gap:44px;min-height:555px}
.contact-intro{padding:72px 0}.contact-intro h1{margin:15px 0 27px}.contact-lead{font:normal clamp(28px,3.2vw,41px)/1.25 Georgia,serif;max-width:620px;margin:0 0 21px}.contact-description{font-size:17px;line-height:1.75;color:#d2e4ef;max-width:580px;margin:0 0 29px}.contact-address-label{font-size:13px;color:#bcd1df;margin:26px 0 7px}.contact-address{margin:0;font-size:clamp(16px,1.65vw,20px);overflow-wrap:anywhere}.contact-address a{color:#87eff9;text-underline-offset:4px}
.contact-art{height:385px;position:relative;display:grid;place-items:center;isolation:isolate}.contact-art:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#b7f6ff 1px,transparent 1.5px);background-size:34px 31px;opacity:.26;mask-image:radial-gradient(ellipse,black,transparent 76%)}.contact-glow{position:absolute;width:300px;height:230px;border-radius:50%;background:#23b9e8;filter:blur(85px);opacity:.28}.contact-orbit{position:absolute;width:85%;height:60%;border:1px solid #6be4ff65;border-radius:50%;transform:rotate(-28deg);box-shadow:0 0 18px #33d5ff33}.contact-orbit-two{transform:rotate(29deg);border-color:#a4d4ff55}.contact-envelope{width:min(70%,310px);aspect-ratio:1.48;position:relative;border:2px solid #80efff;border-radius:15px;background:linear-gradient(145deg,#0c456a,#092740);box-shadow:0 0 34px #2ad9ff5e,inset 0 0 32px #22c4f629;overflow:hidden}.contact-envelope-flap{position:absolute;left:13%;top:-44%;width:74%;height:100%;border-right:2px solid #8df2ff;border-bottom:2px solid #8df2ff;transform:rotate(45deg);border-radius:9px;box-shadow:4px 4px 14px #22c8f51f}.contact-envelope-line{position:absolute;left:0;bottom:-55%;width:100%;height:100%;border-top:2px solid #80efff;transform:rotate(-24deg)}.contact-envelope-mark{position:absolute;bottom:12%;right:12%;font:italic 38px Georgia,serif;color:#c4fbff;text-shadow:0 0 16px #33dcff}.contact-art-caption{position:absolute;bottom:2%;font-size:10px;font-weight:700;letter-spacing:.2em;color:#b1eaf4;text-align:center}.contact-follow{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:65px 0 75px}.contact-follow h2{font-size:clamp(29px,3vw,38px);font-weight:500;margin:9px 0}.contact-follow p:not(.section-label){color:var(--muted);line-height:1.65}.contact-follow-links{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:0}.contact-intro{padding:55px 0 15px}.contact-art{height:280px;margin-bottom:28px}.contact-follow{align-items:flex-start;flex-direction:column;padding:45px 0 60px}}
@media(max-width:560px){.contact-intro{padding:35px 0 10px}.contact-art{height:230px}.contact-envelope{width:min(67%,260px)}.contact-follow-links{align-items:flex-start;flex-direction:column;gap:18px}}

/* V14: menú accesible para pantallas pequeñas, sin JavaScript. */
.mobile-navigation{display:contents}
.mobile-navigation summary{display:none}
@media(max-width:900px){
 .nav{flex-direction:row;align-items:center;flex-wrap:wrap;gap:10px;padding:13px 0}
 .mobile-navigation{display:block;width:100%}
 .mobile-navigation summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:9px 14px;border:1px solid #46738b;border-radius:9px;color:#fff;font-size:15px;font-weight:700;cursor:pointer;list-style:none}
 .mobile-navigation summary::-webkit-details-marker{display:none}
 .mobile-navigation summary:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
 .mobile-navigation summary span{font-size:20px;line-height:1}
 .mobile-navigation:not([open]) nav{display:none}
 .mobile-navigation[open] nav{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:8px 0 4px}
 .mobile-navigation nav a{display:flex;align-items:center;min-height:44px;padding:10px 14px;font-size:15px;border-bottom:1px solid #23445e}
 .mobile-navigation nav a[aria-current="page"]{text-underline-offset:4px}
}

/* V15: navegación de escritorio visible y menú accesible en pantallas estrechas. */
.responsive-navigation{display:block}
.responsive-navigation nav{display:flex;gap:25px;flex-wrap:wrap}
.menu-toggle{display:none}
@media(max-width:900px){
 .responsive-navigation{width:100%}
 .menu-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:44px;padding:9px 14px;border:1px solid #46738b;border-radius:9px;background:transparent;color:#fff;font:700 15px system-ui,sans-serif;cursor:pointer;text-align:left}
 .menu-toggle span{font-size:20px;line-height:1}
 .menu-toggle:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
 .responsive-navigation nav{display:none}
 .responsive-navigation.is-open nav{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:8px 0 4px}
 .responsive-navigation nav a{display:flex;align-items:center;min-height:44px;padding:10px 14px;font-size:15px;border-bottom:1px solid #23445e}
}

/* Neurociencias: páginas públicas y plantilla de unidades */
.neuro-hero{background:radial-gradient(circle at 85% 15%,#165477,#0b2b4b 45%,#07162a 85%);color:#fff;padding:85px 0 90px}.neuro-hero .wrap{max-width:1180px}.neuro-hero h1{margin:16px 0 20px}.neuro-lead{font-size:clamp(17px,1.8vw,21px);line-height:1.7;color:#dceaf6;max-width:770px;margin:0 0 30px}.neuro-hero-small{padding:55px 0 60px}.neuro-content{padding:65px 0 70px}.neuro-content>h2,.neuro-discussion h2,.neuro-article h2{font-size:clamp(27px,3vw,39px);font-weight:500}.neuro-content>p:not(.section-label){line-height:1.75;color:var(--muted);max-width:760px}.neuro-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}.neuro-card{background:#edf7ff;border:1px solid #d5eaf7;border-radius:17px;padding:30px;min-height:240px}.neuro-card-muted{background:#f5f7fb;border-color:#e2e8f0}.neuro-number{font-size:13px;letter-spacing:.18em;font-weight:800;color:#087f9a}.neuro-card h3{font:normal 28px Georgia,serif;margin:16px 0}.neuro-card p,.neuro-discussion p:not(.section-label){line-height:1.75;color:var(--muted)}.neuro-status{display:inline-block;margin-top:14px;border-radius:30px;padding:7px 12px;background:#d8edf7;color:#15536d;font-size:12px;font-weight:750}.neuro-discussion{display:flex;align-items:center;justify-content:space-between;gap:32px;background:#eaf7fc;border-radius:18px;padding:35px 40px;margin-bottom:75px}.neuro-discussion>div{max-width:750px}.neuro-article{max-width:850px;padding:55px 0 75px}.neuro-article h2{margin-top:40px}.neuro-article p{font-size:17px;line-height:1.85;color:#46576d}.neuro-draft{background:#fff4dc;border-left:4px solid #c98518;padding:14px 18px}@media(max-width:700px){.neuro-hero{padding:50px 0 55px}.neuro-grid{grid-template-columns:1fr}.neuro-discussion{flex-direction:column;align-items:flex-start;padding:27px;margin-bottom:50px}.neuro-content{padding:45px 0}.neuro-article{padding:35px 0 55px}}

.neuro-resource{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:35px;padding:35px 40px;border:1px solid #d5eaf7;border-radius:18px;background:#f0f9ff}.neuro-resource>div{max-width:750px}.neuro-resource h2{font-size:clamp(28px,3vw,38px);font-weight:500;margin:9px 0}.neuro-resource p:not(.section-label){line-height:1.7;color:var(--muted)}@media(max-width:700px){.neuro-resource{flex-direction:column;align-items:flex-start;padding:26px}}

/* V17 visual: ilustraciones aprobadas para Neurociencias. */
.neuro-hero{position:relative;isolation:isolate;overflow:hidden;background:#0b2139;min-height:420px;display:flex;align-items:center}
.neuro-hero::before{content:"";position:absolute;z-index:-2;inset:0 0 0 39%;background:url("assets/neuro-cerebro.webp") center right/cover no-repeat}
.neuro-hero::after{content:"";position:absolute;z-index:-1;inset:0;background:linear-gradient(90deg,#0b2139 0%,#0d2a47 31%,#0c2a47e8 43%,#0b29454d 67%,transparent 100%)}
.neuro-hero .wrap{width:100%;position:relative}.neuro-hero .neuro-lead{max-width:610px}.neuro-hero h1{max-width:610px}
.neuro-discussion{position:relative;isolation:isolate;overflow:hidden;min-height:245px}.neuro-discussion::before{content:"";position:absolute;z-index:-2;right:12%;top:0;bottom:0;width:29%;background:url("assets/neuro-neurona.webp") center/contain no-repeat;opacity:.8}.neuro-discussion::after{content:"";position:absolute;z-index:-1;inset:0;background:linear-gradient(90deg,#eaf7fc 0%,#eaf7fcef 50%,#eaf7fc44 85%,#eaf7fc 100%)}.neuro-discussion>div{max-width:610px}.neuro-discussion>.button{flex-shrink:0}
@media(max-width:800px){.neuro-hero::before{inset:0 0 0 18%;opacity:.6}.neuro-hero::after{background:linear-gradient(90deg,#0b2139 0%,#0b2139eb 50%,#0b213977 100%)}.neuro-discussion::before{right:0;width:55%;opacity:.34}.neuro-discussion::after{background:linear-gradient(90deg,#eaf7fc 0%,#eaf7fce8 100%)}}

/* Neurociencias: plantilla reutilizable de unidades */
.neuro-status-link{text-decoration:none}.neuro-status-link:hover{text-decoration:underline}.neuro-unit-hero{background:linear-gradient(120deg,#07162a,#0b3654);color:#fff;padding:58px 0 54px}.neuro-unit-head{max-width:900px}.neuro-unit-head h1{margin:14px 0 14px}.neuro-unit-head>p:not(.eyebrow){color:#dceaf6;font-size:19px;line-height:1.65;max-width:720px}.neuro-back{display:inline-block;margin-top:18px;color:#d8f4ff;font-weight:700;text-decoration:none}.neuro-back:hover{text-decoration:underline}.neuro-toc{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin:30px 0 50px;padding:18px 20px;border:1px solid #dce7ef;border-radius:14px;background:#f7fbfe}.neuro-toc strong{margin-right:4px}.neuro-toc a{color:#12657b;text-decoration:none;font-weight:650}.neuro-toc a:hover{text-decoration:underline}.neuro-article section{scroll-margin-top:90px;margin-top:48px}.neuro-placeholder{padding:22px 24px;border:1px dashed #b8cbd8;border-radius:13px;background:#fbfdff}.neuro-media-placeholder{min-height:230px;border:1px dashed #9fbccc;border-radius:16px;background:linear-gradient(135deg,#f3fbff,#eef5fa);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px;color:#49667a}.neuro-media-placeholder span{font:normal 25px Georgia,serif;color:#24475e;margin-bottom:8px}.neuro-question{border-left:4px solid #1687a0;background:#eff9fc;padding:18px 22px;border-radius:0 12px 12px 0}.neuro-question p{margin-bottom:0}.neuro-unit-nav{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:14px 28px;border-top:1px solid #dce7ef;margin-top:60px;padding-top:25px}.neuro-unit-nav a{font-weight:750;color:#12657b;text-decoration:none}.neuro-unit-nav a:hover{text-decoration:underline}.neuro-unit-nav span{color:#7a8793}.neuro-unit-nav .neuro-next-unit{margin-left:auto}.neuro-unit-nav em{font-style:normal}.neuro-card:has(.neuro-status-link){transition:transform .15s ease,box-shadow .15s ease}.neuro-card:has(.neuro-status-link):hover{transform:translateY(-2px);box-shadow:0 12px 30px #173b5520}@media(max-width:700px){.neuro-unit-hero{padding:42px 0}.neuro-toc{align-items:flex-start;flex-direction:column}.neuro-unit-nav{flex-direction:column;align-items:flex-start}.neuro-unit-nav .neuro-next-unit{margin-left:0}}

/* Demo editorial Unidad 01 */
.neuro-article .demo-lead{font-size:1.18rem;line-height:1.75;color:#23364d}.neuro-callout{margin:2rem 0;padding:1.4rem 1.6rem;border-left:4px solid #14a8a0;background:#f1fbfa;border-radius:0 14px 14px 0}.neuro-callout strong{display:block;margin-bottom:.35rem;color:#12304b}.neuro-figure{margin:2rem 0;background:#f7fafc;border:1px solid #dbe5ec;border-radius:18px;padding:1.25rem}.neuro-figure img{display:block;max-width:620px;width:100%;margin:0 auto;border-radius:14px}.neuro-figure figcaption{max-width:720px;margin:.9rem auto 0;color:#5c6f80;font-size:.93rem;line-height:1.55}.neuro-equation{margin:1.6rem 0;padding:1.3rem;text-align:center;background:#0c2638;color:white;border-radius:14px;font:1.15rem Georgia,serif;letter-spacing:.02em}.neuro-questions{display:grid;gap:1rem}.neuro-question.demo{border:1px solid #dbe5ec;border-radius:14px;padding:1.15rem 1.25rem;background:white}.neuro-question.demo strong{color:#0c6172}.neuro-note{font-size:.92rem;color:#66798a}


/* V17: ruta de navegación (miga de pan) en todas las unidades de Neurociencias. */
.neuro-breadcrumb-wrap{background:#f5f9fc;border-bottom:1px solid #dce7ef}.neuro-breadcrumb{display:flex;align-items:center;gap:9px;min-height:46px;font-size:14px;color:#657789}.neuro-breadcrumb a{color:#12657b;font-weight:700;text-decoration:none}.neuro-breadcrumb a:hover{text-decoration:underline}.neuro-breadcrumb span[aria-hidden="true"]{color:#9aabb7}.neuro-breadcrumb span[aria-current="page"]{font-weight:650;color:#526476}@media(max-width:560px){.neuro-breadcrumb{min-height:42px;font-size:13px;gap:7px;white-space:nowrap;overflow-x:auto}}

/* V19 · Comunidad */
.community-hero{background:radial-gradient(circle at 76% 48%,#124f78 0,#092b4b 38%,#07162a 73%);color:#fff;overflow:hidden}.community-grid{min-height:560px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:35px}.community-copy{padding:65px 0}.community-copy h1{margin-bottom:16px}.community-lead{font:normal clamp(25px,3vw,38px)/1.3 Georgia,serif;margin:0 0 18px;color:#fff}.community-note{max-width:600px;font-size:17px;line-height:1.7;color:#dceaf6}.community-art{min-height:430px;position:relative;display:grid;place-items:center}.community-art img{position:relative;width:220px;height:auto;filter:drop-shadow(0 0 20px #36dffb66);z-index:2}.community-art:before,.community-art:after{content:"";position:absolute;border:1px solid #58e4f388;border-radius:50%;inset:19% 8%;transform:rotate(-20deg);box-shadow:0 0 24px #33cfea33}.community-art:after{transform:rotate(27deg);inset:27% 4%}.bubble{position:absolute;display:grid;place-items:center;width:68px;height:68px;border-radius:50%;border:1px solid #70e9f2;background:#0b3152cc;color:#dffcff;font:28px Georgia,serif;box-shadow:0 0 24px #31d9ee44;z-index:3}.bubble-a{left:10%;top:23%}.bubble-b{right:9%;top:18%}.bubble-c{right:16%;bottom:18%}.community-lines{position:absolute;inset:7%;background-image:radial-gradient(#b7f8ff 1px,transparent 1.5px);background-size:37px 37px;opacity:.35;mask-image:radial-gradient(ellipse,black,transparent 72%)}.community-intro{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:55px 0}.community-intro h2,.community-forum h2{font-size:clamp(29px,3vw,40px);font-weight:500;margin:8px 0}.community-intro>p,.community-forum p:not(.section-label){color:var(--muted);line-height:1.75}.community-forum{background:#eaf7fc;border-radius:18px;padding:35px 40px;display:flex;align-items:center;justify-content:space-between;gap:35px;margin-bottom:65px}.community-forum>div{max-width:760px}@media(max-width:1050px){.features{grid-template-columns:repeat(3,1fr)}}@media(max-width:900px){.community-grid{grid-template-columns:1fr;gap:0}.community-copy{padding:50px 0 15px}.community-art{min-height:310px}.community-intro{grid-template-columns:1fr;gap:0}.community-forum{align-items:flex-start;flex-direction:column}.features{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.community-copy{padding-top:35px}.community-art{min-height:260px}.bubble{width:52px;height:52px;font-size:22px}.community-forum{padding:27px}.features{grid-template-columns:1fr}}

/* V20: legibilidad, espaciado y conversación contextual */
.resources-page .neuro-resource{background:#eaf6fc;color:#102b48}
.resources-page .neuro-resource h2{color:#102b48}
.resources-page .neuro-resource p:not(.section-label){color:#3b5269}
.resources-page .neuro-resource .section-label{color:#08718a}
.resources-page .resources-next h2{color:#fff}
.resources-page .resources-next p:not(.section-label){color:#d9e8f4}
.resources-page .resources-next .section-label{color:#66dfee}
.resources-page .resources-next .button.dark{background:#51e0ed;color:#061c31}
.resources-page .resources-next .button.dark:hover{background:#92f2fa}
.contact-page .contact-follow{padding-top:48px;padding-bottom:52px}
.contact-page main{flex:0 0 auto;min-height:0}
.neuro-forum-callout{display:flex;justify-content:space-between;align-items:center;gap:28px;margin:45px 0 15px;padding:28px 32px;border:1px solid #cbe4ef;border-radius:18px;background:#eaf7fc;color:#102b48}
.neuro-forum-callout>div{max-width:680px}
.neuro-forum-callout h2{font-size:clamp(25px,2.7vw,34px);font-weight:500;margin:8px 0 12px;color:#102b48}
.neuro-forum-callout p:not(.section-label){color:#3b5269;line-height:1.65;margin:0}
.neuro-forum-callout .section-label{color:#08718a}
.neuro-forum-callout .button{flex-shrink:0}
@media(max-width:700px){.neuro-forum-callout{flex-direction:column;align-items:flex-start;padding:24px}.contact-page .contact-follow{padding-top:35px;padding-bottom:42px}}

/* V22 · Autoevaluación formativa reutilizable para unidades de Neurociencias */
.neuro-selfcheck{margin-top:52px;padding:30px 32px;border:1px solid #cfe2ec;border-radius:18px;background:#f7fbfd}
.neuro-selfcheck>h2{margin-top:8px}.neuro-selfcheck-intro{max-width:720px;margin-bottom:24px}
.neuro-quiz{display:grid;gap:20px}.neuro-quiz-question{margin:0;padding:22px 24px;border:1px solid #dbe6ec;border-radius:15px;background:#fff}
.neuro-quiz-question legend{width:100%;padding:0;margin:0 0 14px;font:600 1.08rem Georgia,serif;color:#17364b;line-height:1.5}
.neuro-quiz-options{display:grid;gap:9px}.neuro-quiz-option{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid transparent;border-radius:10px;cursor:pointer;color:#3c5264;line-height:1.5}
.neuro-quiz-option:hover{background:#f3f9fc;border-color:#d7e8f0}.neuro-quiz-option input{margin-top:.25em;accent-color:#147b91;flex:0 0 auto}
.neuro-quiz-check,.neuro-quiz-reset{appearance:none;border:0;border-radius:999px;font:inherit;font-weight:750;cursor:pointer}
.neuro-quiz-check{margin-top:16px;padding:9px 15px;background:#123f59;color:#fff}.neuro-quiz-check:hover{background:#0c3147}
.neuro-quiz-feedback{margin:14px 0 0;padding:12px 14px;border-radius:10px;font-size:.95rem;line-height:1.55}.neuro-quiz-feedback.is-correct{background:#edf8f2;color:#245b3a;border:1px solid #cfe7d8}.neuro-quiz-feedback.is-try-again{background:#fff6e7;color:#71501c;border:1px solid #edd9b5}.neuro-quiz-feedback.is-neutral{background:#f3f6f8;color:#536674;border:1px solid #dce4e9}
.neuro-quiz-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:4px}.neuro-quiz-note{margin:0!important;font-size:.9rem!important;color:#687b88!important}.neuro-quiz-reset{padding:9px 15px;background:#e5f1f6;color:#15566d}.neuro-quiz-reset:hover{background:#d8eaf1}
@media(max-width:700px){.neuro-selfcheck{padding:24px 20px}.neuro-quiz-question{padding:19px 17px}.neuro-quiz-footer{align-items:flex-start;flex-direction:column}}