:root{--bg:#050b17;--panel:#0a1426;--panel2:#0d1b31;--line:rgba(115,174,255,.19);--text:#f2f6ff;--muted:#a3b2ca;--blue:#188bff;--cyan:#38d7ff;--gold:#c7d8f4;--font:'Inter',sans-serif;--display:'Barlow Condensed',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.65}a{color:inherit;text-decoration:none}.intro{position:fixed;inset:0;z-index:99;background:#050b17;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .8s ease,visibility .8s ease}.intro.hide{opacity:0;visibility:hidden}.intro img{width:120px;animation:compass 1.8s ease-in-out infinite alternate;filter:drop-shadow(0 0 28px #147fff80)}.intro-name{font:700 2.3rem var(--display);letter-spacing:.12em;margin-top:14px}.intro-name span{display:block;text-align:center;color:var(--cyan);font:600 .95rem var(--font);letter-spacing:.65em}.intro-line{width:160px;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);margin-top:25px;animation:line 1.3s ease-in-out infinite alternate}@keyframes compass{to{transform:rotate(12deg) scale(1.05)}}@keyframes line{to{width:260px;opacity:.5}}.topbar{height:82px;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:0 6vw;background:rgba(5,11,23,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font:700 1.2rem var(--display);letter-spacing:.09em}.brand img{width:44px;height:44px;object-fit:cover;border-radius:50%;border:1px solid #1a8bff}.brand b{color:var(--cyan);font-weight:600}nav{display:flex;align-items:center;gap:30px;font-size:.83rem;color:#c2cde0}nav a:hover,.text-link:hover{color:var(--cyan)}.nav-cta{border:1px solid #238dff;padding:10px 15px;color:#fff}.menu-toggle{display:none;background:none;border:0;color:white;font-size:1.6rem}.hero{min-height:720px;position:relative;overflow:hidden;display:flex;align-items:center;padding:85px 9vw 110px;background:#07142d}.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,10,24,.97) 0%,rgba(4,12,30,.88) 43%,rgba(4,12,30,.2) 100%),linear-gradient(0deg,#050b17 0%,transparent 25%),url('assets/wanderer-banner.png') center/cover;opacity:.86;animation:heroIn 1.6s ease both}@keyframes heroIn{from{transform:scale(1.08);opacity:.3}to{transform:scale(1);opacity:.86}}.hero-content{position:relative;z-index:2;max-width:690px;animation:rise .9s .3s both}@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}.eyebrow,.section-label{font-size:.72rem;letter-spacing:.2em;color:var(--cyan);font-weight:700}.pulse{display:inline-block;width:7px;height:7px;background:#50e7ff;border-radius:50%;margin-right:9px;box-shadow:0 0 15px #50e7ff}.hero h1{font:800 clamp(3.6rem,7vw,6.8rem)/.91 var(--display);letter-spacing:.015em;margin:26px 0}.hero h1 em,h2 em{font-style:normal;color:var(--cyan)}.hero-lead{max-width:550px;color:#c2cee2;font-size:1.02rem;line-height:1.9}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:22px;padding:14px 20px;font-weight:700;font-size:.82rem;transition:transform .2s,background .2s}.btn:hover{transform:translateY(-3px)}.primary{background:linear-gradient(100deg,#0878ed,#19b7f5);color:#fff;box-shadow:0 10px 35px #0878ed25}.ghost{border:1px solid #7186a9;color:#e7efff;background:#07122690}.hero-meta{display:flex;gap:32px;margin-top:58px;padding-top:22px;border-top:1px solid #8aa6d34a}.hero-meta div{display:flex;flex-direction:column}.hero-meta b{font:700 1.3rem var(--display);color:#fff;letter-spacing:.08em}.hero-meta span{font-size:.7rem;color:#9eb0cb}.hero-mark{position:absolute;right:9%;top:20%;display:flex;align-items:center;flex-direction:column;opacity:.45}.hero-mark img{width:min(22vw,260px);filter:drop-shadow(0 0 35px #078bff)}.hero-mark span{font-size:.62rem;letter-spacing:.35em;color:#8acbff}.hero-bottom{position:absolute;bottom:26px;left:9%;right:9%;display:flex;justify-content:space-between;color:#7287a8;font-size:.62rem;letter-spacing:.2em}.section{padding:110px 9vw}.about{background:linear-gradient(135deg,#081224,#050b17)}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:9%;margin-top:28px}.section h2,.join h2{font:700 clamp(2.6rem,5vw,4.5rem)/1.02 var(--display);margin:0;letter-spacing:.01em}.about-copy{color:#b3c1d6}.about-copy p{margin-top:0}.about-copy strong{color:white}.quote{border-left:2px solid var(--cyan);padding:14px 20px;margin-top:28px;background:#0b1b32;color:#d9e8ff;font-size:.94rem}.activity{background:#070e1c}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:50px;margin:25px 0 44px}.section-heading p{max-width:390px;color:var(--muted);font-size:.9rem}.activity-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.activity-card{min-height:300px;padding:25px 22px;background:linear-gradient(145deg,#0c1a30,#08111f);border:1px solid var(--line);position:relative;overflow:hidden;transition:transform .25s,border-color .25s}.activity-card:hover,.lesson:hover{transform:translateY(-5px);border-color:#258bff80}.activity-card:after{content:'';position:absolute;width:130px;height:130px;right:-70px;bottom:-75px;border:1px solid #178aff50;border-radius:50%;box-shadow:0 0 0 20px #178aff0a,0 0 0 40px #178aff08}.activity-card.featured{background:linear-gradient(145deg,#0b2a4a,#081324);border-color:#1988e966}.card-icon{font-size:2rem;color:var(--cyan);height:58px}.card-number{font-size:.61rem;color:#7f9bbf;letter-spacing:.13em}.activity-card h3,.lesson h3{font:700 1.8rem var(--display);margin:10px 0}.activity-card p,.lesson p{font-size:.82rem;color:#aebdd2;line-height:1.8}.tag{display:inline-block;margin-top:10px;padding:5px 8px;border:1px solid #42628680;color:#91cfff;font-size:.63rem}.academy{background:#091426}.academy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.lesson{padding:26px;background:#0b192c;border:1px solid var(--line);transition:transform .25s,border-color .25s;display:flex;flex-direction:column}.lesson-top{display:flex;justify-content:space-between;align-items:center}.lesson-symbol{font-size:2rem;color:var(--cyan)}.lesson-code{font-size:.6rem;color:#7c91b0;letter-spacing:.1em}.lesson ul{padding-left:18px;color:#c4d0e1;font-size:.78rem;line-height:2}.lesson li::marker{color:var(--cyan)}.text-link{color:#6fcfff;font-weight:700;font-size:.8rem;margin-top:auto;padding-top:20px}.text-link span{margin-left:8px}.lesson small{margin-top:15px;color:#6f85a5;font-size:.65rem;overflow-wrap:anywhere}.lesson code{color:#9fceff}.academy-note{display:flex;gap:14px;align-items:flex-start;margin-top:24px;padding:17px 20px;border:1px solid #2b83d34d;background:#08172a;color:#9eafc8;font-size:.77rem}.academy-note>span{border:1px solid #4dbaff;color:#4dbaff;border-radius:50%;width:22px;height:22px;flex:0 0 22px;text-align:center;font-weight:700}.academy-note p{margin:0}.academy-note strong{color:#d6e7ff}.join{position:relative;overflow:hidden;background:#061021}.join-bg{position:absolute;inset:0;background:linear-gradient(90deg,#061021f7,#061021df),url('assets/wanderer-banner-alt.png') center/cover;opacity:.9}.join>*:not(.join-bg){position:relative}.join-grid{display:grid;grid-template-columns:1fr .8fr;gap:10%;margin-top:25px}.join-intro{max-width:430px;color:#aebdd2;margin:25px 0}.requirements{background:#0b192bdb;border:1px solid var(--line);padding:28px 32px}.requirements h3{font:700 1.8rem var(--display);margin:0 0 18px}.requirements ul{list-style:none;padding:0;margin:0}.requirements li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;color:#c1cee0;font-size:.83rem;border-bottom:1px solid #91b6e014}.requirements li span{color:var(--cyan);font-weight:700}.contact{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column}.contact span{font-size:.6rem;color:#6ebfff;letter-spacing:.15em}.contact strong{font:700 1.5rem var(--display);margin-top:3px}.contact small{color:#8296b4}.final-cta{display:flex;align-items:center;gap:28px;padding:55px 9vw;background:linear-gradient(100deg,#0b1d36,#07101f);border-top:1px solid var(--line)}.final-cta img{width:95px;height:95px;object-fit:cover;border-radius:50%;filter:drop-shadow(0 0 20px #078bff55)}.final-cta h2{font:700 2.3rem var(--display);margin:3px 0}.final-cta p{color:#9eafc8;font-size:.8rem;margin:0}.final-cta .btn{margin-left:auto;white-space:nowrap}footer{padding:25px 9vw 20px;display:flex;align-items:center;gap:25px;flex-wrap:wrap;color:#7f91ac;font-size:.7rem;border-top:1px solid var(--line)}.footer-brand{font:700 1.15rem var(--display);color:#f3f7ff;letter-spacing:.1em}.footer-brand span{color:var(--cyan)}footer>a:nth-of-type(2){margin-left:auto;color:#8ed5ff}footer small{flex-basis:100%;padding-top:14px;border-top:1px solid #7891b01a;color:#5e718e}@media(max-width:1000px){.hero-mark{right:4%;opacity:.25}.activity-grid{grid-template-columns:repeat(2,1fr)}nav{gap:16px}.section{padding:85px 6vw}.hero{padding-left:7vw}.academy-grid{grid-template-columns:1fr 1fr}}@media(max-width:700px){.topbar{height:70px;padding:0 5vw}.brand{font-size:1rem}.brand img{width:37px;height:37px}.menu-toggle{display:block}nav{display:none;position:absolute;top:70px;left:0;right:0;background:#071224;padding:20px 6vw 25px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}nav.open{display:flex}nav a{padding:8px 0}.nav-cta{text-align:center}.hero{min-height:690px;padding:75px 6vw 100px}.hero-bg{background:linear-gradient(90deg,rgba(4,10,24,.96),rgba(4,12,30,.65)),linear-gradient(0deg,#050b17 0%,transparent 30%),url('assets/wanderer-banner.png') center/cover}.hero h1{font-size:clamp(3.4rem,15vw,5.5rem)}.hero-mark{display:none}.hero-meta{gap:15px;flex-wrap:wrap}.hero-meta span{max-width:95px}.hero-bottom{left:6%;right:6%;font-size:.5rem;letter-spacing:.1em}.section{padding:72px 6vw}.about-grid,.join-grid{grid-template-columns:1fr;gap:25px}.section-heading{display:block}.section-heading p{margin-top:20px}.activity-grid,.academy-grid{grid-template-columns:1fr}.activity-card{min-height:240px}.lesson{min-height:unset}.final-cta{padding:40px 6vw;flex-wrap:wrap;gap:18px}.final-cta img{width:65px;height:65px}.final-cta>div{flex:1;min-width:200px}.final-cta h2{font-size:1.9rem}.final-cta .btn{margin-left:0;width:100%}footer{padding:24px 6vw;gap:13px}footer>a:nth-of-type(2){margin-left:0}.intro-name{font-size:1.9rem}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* Academia: páginas de clase */
.lesson-hero{padding:74px 9vw 66px;background:linear-gradient(100deg,#07142bF5,#07142bd9),url('../assets/wanderer-banner.png') center/cover;border-bottom:1px solid var(--line)}
.lesson-hero .crumb{font-size:.72rem;color:#83cfff;letter-spacing:.12em;margin-bottom:18px}
.lesson-hero h1{font:800 clamp(3rem,6vw,5.2rem)/.98 var(--display);margin:0 0 18px}
.lesson-hero h1 em{font-style:normal;color:var(--cyan)}
.lesson-hero p{max-width:760px;color:#bdcce2}
.lesson-wrap{max-width:1120px;margin:auto;padding:64px 6vw 90px}
.lesson-intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;margin-bottom:28px}
.info-panel{padding:26px;background:linear-gradient(145deg,#0c1c33,#081221);border:1px solid var(--line)}
.info-panel h2,.lesson-wrap h2{font:700 2rem var(--display);margin:0 0 12px}
.info-panel p,.info-panel li,.lesson-wrap p,.lesson-wrap li{color:#b6c5db;font-size:.9rem}
.info-panel ul{padding-left:20px;margin-bottom:0}.info-panel li::marker{color:var(--cyan)}
.notice{padding:16px 18px;margin:22px 0;border-left:3px solid var(--cyan);background:#0b1c32;color:#c3d4ea;font-size:.85rem}
.source-pages{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:24px}
.source-page{margin:0;padding:12px;background:#0a1424;border:1px solid var(--line)}
.source-page img{display:block;width:100%;height:auto;background:#fff}
.source-page figcaption{font-size:.72rem;color:#91a8c8;padding:10px 3px 2px}
.lesson-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}
.channel-id{display:inline-block;border:1px solid #2b7dbd66;color:#a6d9ff;padding:6px 10px;font-size:.75rem;overflow-wrap:anywhere}
@media(max-width:700px){.lesson-hero{padding:56px 6vw 45px}.lesson-wrap{padding:45px 5vw 65px}.lesson-intro-grid,.source-pages{grid-template-columns:1fr}}

/* Ilustraciones originales integradas en las lecciones */
.class-image-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:22px}
.class-figure{margin:0;background:rgba(9,28,57,.72);border:1px solid rgba(74,190,255,.26);border-radius:12px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.18)}
.class-figure img{display:block;width:100%;height:210px;object-fit:contain;background:#06152c;padding:8px}
.class-figure figcaption{padding:12px 14px;color:#e7f5ff;font-weight:600;font-size:.92rem}
.class-figure figcaption span{display:block;color:#91a9c8;font-size:.78rem;font-weight:400;margin-top:4px}
.visual-material{margin-top:28px}
@media(max-width:600px){.class-image-grid{grid-template-columns:1fr}.class-figure img{height:auto;max-height:330px}}


/* Images integrated beside the relevant lesson text */
.inline-lesson-images{margin:24px 0 4px;padding:16px;border:1px solid rgba(62,183,255,.22);border-radius:14px;background:rgba(4,19,42,.42)}
.image-group-label{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:#64dfff;font-weight:700;margin:0 0 12px}
.inline-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:0}
.zoomable-figure{cursor:zoom-in;transition:transform .2s,border-color .2s,box-shadow .2s}
.zoomable-figure:hover{transform:translateY(-3px);border-color:rgba(65,216,255,.8);box-shadow:0 12px 32px rgba(0,0,0,.35)}
.class-figure img.zoomable-image{height:190px;object-fit:contain;cursor:zoom-in}
.image-lightbox{position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center;padding:64px 72px 54px;background:rgba(1,6,18,.94);backdrop-filter:blur(10px)}
.image-lightbox.open{display:flex}
.image-lightbox figure{margin:0;max-width:min(1200px,90vw);max-height:85vh;display:flex;flex-direction:column;align-items:center;gap:12px}
.image-lightbox figure img{max-width:100%;max-height:76vh;width:auto;height:auto;object-fit:contain;border:1px solid rgba(89,207,255,.45);border-radius:10px;box-shadow:0 20px 80px rgba(0,0,0,.6);background:#06152c}
.image-lightbox figcaption{color:#eaf7ff;text-align:center;font-size:.95rem}
.lightbox-close,.lightbox-prev,.lightbox-next{position:absolute;border:1px solid rgba(103,210,255,.45);background:rgba(10,34,65,.9);color:#fff;cursor:pointer;border-radius:50%;display:grid;place-items:center}
.lightbox-close{right:24px;top:20px;width:48px;height:48px;font-size:32px}.lightbox-prev,.lightbox-next{top:50%;transform:translateY(-50%);width:48px;height:60px;font-size:40px;border-radius:12px}.lightbox-prev{left:18px}.lightbox-next{right:18px}.lightbox-hint{position:absolute;bottom:12px;color:#a9c1db;font-size:.8rem;text-align:center}
@media(max-width:600px){.inline-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.class-figure img.zoomable-image{height:140px}.image-lightbox{padding:58px 12px 46px}.lightbox-prev{left:4px}.lightbox-next{right:4px}.lightbox-prev,.lightbox-next{width:36px;height:48px}.lightbox-close{right:10px;top:10px}}

/* Referencias visuales en orden de las páginas originales y visor PDF */
.visual-reference{display:grid;gap:1rem}
.visual-reference>h2,.visual-reference>p{grid-column:1/-1}
.visual-description{margin:0;padding:1.1rem 1.25rem;border:1px solid rgba(68,190,255,.2);border-left:3px solid #24c8ef;background:rgba(8,28,54,.72);border-radius:12px}
.visual-description h3{margin:0 0 .45rem;color:#68dfff;font-size:1.12rem}
.visual-description p{margin:0;line-height:1.7;color:#d5e2f2}
.pdf-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin:1rem 0 1.25rem}
.pdf-viewer{display:block;width:100%;height:min(82vh,950px);min-height:560px;border:1px solid rgba(68,190,255,.3);border-radius:14px;background:#07152d}
@media(max-width:700px){.pdf-viewer{height:68vh;min-height:430px}.visual-description{padding:1rem}}