@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=DM+Sans:wght@400;500;600;700&display=swap');:root{color-scheme:dark;--bg:#080808;--panel:#141414;--line:#302a21;--gold:#d9b66c;--muted:#a9a49b;--white:#f7f3ec}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--white);font:15px/1.6 'DM Sans',Arial,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer;border:1px solid #40372b;background:#191919;color:var(--white);border-radius:8px;padding:10px 15px;transition:.2s}button:hover{border-color:var(--gold)}button:disabled{opacity:.45;cursor:default}.primary{background:linear-gradient(110deg,#eed282,#b7854d);color:#14100a;border-color:#c4a365;font-weight:700}.full{width:100%}h1,h2,h3{font-family:'Cinzel',Georgia,serif;font-weight:500}.eyebrow{font-size:10px;letter-spacing:3px;color:var(--gold);font-weight:700}.auth-screen{min-height:100vh;display:grid;place-items:center;padding:25px;background:radial-gradient(ellipse at 50% 10%,#2a2114 0%,#080808 60%)}.auth-card{width:min(100%,440px);background:#111;border:1px solid #433723;border-radius:16px;padding:38px;box-shadow:0 22px 70px #0008;text-align:center}.auth-logo{display:block;width:170px;max-height:110px;object-fit:contain;margin:0 auto 22px}.auth-card h1{font-size:29px;margin:12px 0 4px}.auth-card p{color:var(--muted)}label{display:block;text-align:left;font-size:13px;color:#dcd0b8;margin:14px 0}input,textarea{width:100%;padding:12px;margin-top:5px;border:1px solid #4a3c2b;border-radius:7px;background:#0b0b0b;color:white}input:focus,textarea:focus{outline:1px solid var(--gold)}.auth-links{display:flex;justify-content:space-between;gap:12px;margin-top:16px}.linkbtn{border:0;background:transparent;color:var(--gold);padding:4px;font-size:12px}.error{color:#f4a5a5!important;min-height:20px;font-size:12px}.top{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding:12px 4vw;background:#0d0d0d}.brand{display:flex;align-items:center;gap:13px}.brand img{width:65px;height:58px;object-fit:contain}.brand strong{font-family:Cinzel,serif;display:block;font-size:14px;letter-spacing:1px}.brand small{display:block;color:var(--gold);font-size:10px}.account{display:flex;align-items:center;gap:15px;color:var(--muted);font-size:12px}.shell{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:calc(100vh - 180px)}.sidebar{border-right:1px solid var(--line);padding:35px 18px;display:flex;flex-direction:column;gap:12px}.sidebar .eyebrow{margin:0 12px 15px}.navitem{border:0;text-align:left;background:transparent;color:#bcb6a9}.navitem.active{color:var(--gold);background:#231e16}.sidebar-foot{margin-top:auto;color:#7e7569;font-size:10px;letter-spacing:1px;line-height:2}.shell main{max-width:1250px;width:100%;padding:0 5% 70px;margin:auto}.hero{padding:70px 0 60px;border-bottom:1px solid var(--line);background:radial-gradient(ellipse at 90% 10%,#241d13 0%,transparent 55%)}.hero h1{font-size:clamp(32px,4.8vw,65px);line-height:1.24;margin:17px 0}.hero em{font-style:normal;color:var(--gold)}.hero p{color:var(--muted);max-width:620px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:10px;margin:42px 0 23px}.section-head h2{margin:7px 0;font-size:28px}.counter,.muted{color:var(--muted)}.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:25px}.filters button{border-radius:30px;font-size:12px}.filters button.active{color:#0a0a0a;background:var(--gold)}.lessons{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:20px}.lesson{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}.player{aspect-ratio:16/9;background:#000;position:relative}.player iframe{width:100%;height:100%;border:0}.player-placeholder{display:grid;place-items:center;height:100%;color:var(--gold);font-family:Cinzel,serif;letter-spacing:2px}.lesson-body{padding:24px}.lesson-body h3{font-size:20px;line-height:1.4;margin:9px 0}.lesson-body p{color:var(--muted);white-space:pre-line;font-size:13px}.pill{color:var(--gold);font-size:10px;letter-spacing:2px;text-transform:uppercase}.watch{color:var(--gold);font-size:12px;text-decoration:none}.empty{color:var(--muted);padding:40px 0}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.upload{display:inline-flex;align-items:center;cursor:pointer;border:1px solid #40372b;background:#191919;color:var(--white);border-radius:8px;padding:10px 15px;margin:0}.status{font-size:13px;color:var(--gold);min-height:24px}.admin-list{display:grid;gap:12px}.admin-item{display:flex;justify-content:space-between;gap:15px;align-items:center;border:1px solid var(--line);border-radius:10px;background:var(--panel);padding:16px}.admin-item h3{font:500 16px 'DM Sans',sans-serif;margin:0}.admin-item p{font-size:12px;color:var(--muted);margin:4px 0;overflow-wrap:anywhere}.actions{display:flex;flex-wrap:wrap;gap:7px}.actions button{padding:6px 10px;font-size:12px}.danger{color:#ffb0a7}.hidden-label{color:#ffcc89;font-size:12px}dialog{width:min(94vw,560px);background:#151515;color:white;border:1px solid var(--gold);border-radius:15px;padding:26px}dialog::backdrop{background:#000d}.dialog-head{display:flex;align-items:center;justify-content:space-between}.dialog-head h2{margin:0}.checkrow{display:flex;align-items:center;gap:10px}.checkrow input{width:auto;margin:0}.dialog-actions{display:flex;justify-content:end;gap:10px;margin-top:25px}footer{text-align:center;padding:24px;border-top:1px solid var(--line);font-size:10px;letter-spacing:2px;color:#8e816b}[hidden]{display:none!important}@media(max-width:760px){.shell{grid-template-columns:1fr}.sidebar{flex-direction:row;align-items:center;padding:12px;border-right:0;border-bottom:1px solid var(--line);flex-wrap:wrap}.sidebar .eyebrow,.sidebar-foot{display:none}.hero{padding:40px 0}.brand strong{font-size:10px}.brand img{width:45px;height:45px}.account{gap:5px}.account span{max-width:95px}.admin-item{align-items:stretch;flex-direction:column}.section-head h2{font-size:23px}.auth-card{padding:24px}}
/* Curso destacado: Agilización de Tiempo */
.featured-course{margin:28px 0 48px;padding:36px;border:1px solid rgba(238,210,130,.35);border-radius:16px;background:linear-gradient(125deg,#17130d,#090909 65%)}.featured-grid{display:flex;justify-content:space-between;gap:32px;align-items:center}.featured-course h2{font-family:Georgia,serif;font-weight:400;font-size:clamp(28px,3.3vw,48px);line-height:1.16;color:#fff;margin:16px 0}.featured-course h2 em{font-style:normal;color:#e6c273}.featured-course p{max-width:670px;color:#d2c9b7;line-height:1.7}.course-tag{display:inline-block;border:1px solid #d6b66c;color:#e6c273;border-radius:30px;padding:7px 13px;font-size:11px;letter-spacing:2px;margin-top:14px}.course-meta{font-size:10px;letter-spacing:2px;color:#e6c273;margin-top:22px}.course-mark{font-family:Georgia,serif;font-size:90px;color:rgba(230,194,115,.35);text-align:center}.course-mark span{display:block;font-family:Arial,sans-serif;font-size:10px;letter-spacing:2px;white-space:nowrap}@media(max-width:750px){.featured-course{padding:22px}.course-mark{display:none}}

/* Aula virtual: cursos agrupados y reproductor de lecciones */
.course-catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:20px}.course-card{border:1px solid #55452c;border-radius:15px;background:linear-gradient(140deg,#1b160e,#111 70%);padding:30px;min-height:265px;display:flex;flex-direction:column;align-items:flex-start}.course-card h3{font-size:23px;line-height:1.4;margin:18px 0 12px}.course-card-meta{color:var(--muted);font-size:13px;margin:auto 0 13px}.course-card .progress-track{width:100%;margin-bottom:19px}.course-card button{width:100%}.course-room{padding-top:5px}.back-courses{margin-bottom:25px;color:var(--gold);background:transparent;border:0;padding-left:0}.room-heading h2{font-size:clamp(23px,3vw,35px);margin:8px 0}.room-heading{margin-bottom:24px}.room-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(270px,1fr);gap:22px;align-items:start}.room-main,.room-list-panel{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#121212}.room-player{aspect-ratio:16/9;background:#000}.room-player iframe{width:100%;height:100%;border:0}.room-lesson-info{padding:24px}.room-lesson-info h3{font-size:23px;margin:12px 0}.room-lesson-info p{font-size:13px;white-space:pre-line}.room-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.room-actions .done{background:#26251e;color:var(--gold);border-color:var(--gold)}.room-list-panel{padding:20px}.room-list-header{display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:13px}.room-list-header span{color:var(--muted);font-size:11px;text-align:right}.progress-track{height:6px;background:#34302a;border-radius:30px;overflow:hidden}.room-list-panel .progress-track{margin:15px 0 18px}.progress-fill{height:100%;width:0;background:linear-gradient(90deg,#b7854d,#eed282);border-radius:30px;transition:width .2s}.room-lesson-list{display:grid;gap:8px}.room-lesson{display:flex;text-align:left;align-items:center;gap:13px;width:100%;background:#191919;border:1px solid #302a21;padding:14px;border-radius:10px}.room-lesson.selected{background:#2a2216;border-color:#b7854d}.lesson-num{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid #80673d;color:var(--gold);font-size:12px}.lesson-name{font-size:13px;line-height:1.5}@media(max-width:900px){.room-grid{grid-template-columns:1fr}}@media(max-width:500px){.room-lesson-info,.room-list-panel{padding:16px}.room-actions button{width:100%}}

/* Academy Signature — nueva dirección visual */
:root{--gold:#d8b676;--gold2:#f0dca8}body{background:radial-gradient(ellipse at 85% -10%,rgba(174,130,61,.12),transparent 35%),#080808} .top{backdrop-filter:blur(18px);background:rgba(10,10,10,.93)}.hero{position:relative;overflow:hidden;border:1px solid rgba(219,178,108,.2);border-radius:22px;background:radial-gradient(ellipse at 90% 10%,rgba(203,163,96,.22),transparent 40%),linear-gradient(135deg,#171411,#090909 75%);padding:clamp(28px,5vw,64px)}.hero:after{content:'✦';position:absolute;right:8%;top:6%;font-size:clamp(90px,18vw,230px);color:rgba(218,182,118,.065);pointer-events:none}.hero h1{letter-spacing:-.035em;line-height:1.05}.hero h1 em{color:#dfbf82}.featured-course{border-radius:22px;box-shadow:0 16px 70px rgba(0,0,0,.18)}.course-card,.room-list-panel,.room-lesson-info,.student-admin-card{border:1px solid rgba(216,182,118,.23);border-radius:18px;background:linear-gradient(155deg,rgba(32,28,23,.94),rgba(12,12,12,.98))}.course-card:hover{border-color:rgba(239,207,147,.65);transform:translateY(-2px);transition:all .2s}.primary{background:linear-gradient(115deg,#a87c3e,#e6c789 55%,#b38748)!important;color:#12100b!important;border-color:transparent!important;font-weight:700}.enrollment-admin{margin-top:38px;padding-top:26px;border-top:1px solid #3b3020}.student-admin-list{display:grid;gap:14px}.student-admin-card{padding:18px}.student-admin-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-bottom:12px}.student-admin-head strong{color:#f4dfb7}.student-admin-head small{color:#bdb7a9}.enroll-line{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;border-top:1px solid #383127;padding:13px 0}.enroll-info{display:grid;gap:5px}.enroll-info strong{font-size:14px}.enroll-info small{color:#bdb7a9}.enroll-controls{display:flex;gap:7px;flex-wrap:wrap}.enroll-controls button{font-size:12px;padding:8px 11px}.student-search{max-width:330px;min-width:220px;background:#131313;color:#eee;border:1px solid #66543c;border-radius:10px;padding:11px}.room-player{box-shadow:0 18px 60px rgba(0,0,0,.45)}@media(max-width:680px){.enroll-controls{width:100%}.enroll-controls button{flex:1}.student-search{width:100%;max-width:none}}

/* Biblioteca Signature · lector de documentos */
.pdf-catalog{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:20px;margin:18px 0 32px}.pdf-course-card{background:#12110f;border:1px solid #665235;border-radius:18px;overflow:hidden;box-shadow:0 12px 35px #0008}.pdf-cover{min-height:215px;padding:28px;background:radial-gradient(circle at 90% 10%,#5d45311f,transparent 55%),linear-gradient(135deg,#21190e,#0a0a0a 70%);display:flex;flex-direction:column;justify-content:center;gap:13px}.pdf-cover h3{font-family:Georgia,serif;font-size:clamp(24px,2.3vw,33px);line-height:1.15;color:#e4c58d;margin:0}.pdf-cover p{font-size:13px;color:#bcb5a9;line-height:1.6}.pdf-card-bottom{padding:19px 24px;display:flex;flex-direction:column;gap:15px}.pdf-status{color:#c5ae83;font-size:11px;letter-spacing:.06em}.pdf-card-bottom button{width:100%}.outline{border:1px solid #bc9656;color:#e8c994;background:transparent}.pdf-admin{margin:32px 0;padding:24px;border:1px solid #685337;border-radius:16px}.pdf-admin select,.pdf-admin input{background:#191715;color:#fff;border:1px solid #6a573c;border-radius:8px;padding:12px;max-width:100%}.pdf-overlay{position:fixed;inset:0;z-index:9999;background:#050505f5;padding:12px}.pdf-overlay[hidden]{display:none}.pdf-modal{height:100%;max-width:1150px;margin:auto;display:flex;flex-direction:column;border:1px solid #705737;border-radius:16px;background:#0d0c0b;overflow:hidden}.pdf-top,.pdf-bottom{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:12px 20px;background:#17130f}.pdf-top h2{font-family:Georgia,serif;color:#e9d0a0;font-size:22px;margin:6px 0}.pdf-canvas-wrap{flex:1;overflow:auto;text-align:center;padding:12px;background:#24211d}.pdf-canvas-wrap canvas{max-width:100%;height:auto;box-shadow:0 4px 25px #000a}.pdf-bottom span{font-size:13px;color:#d2c1a2;text-align:center}@media(max-width:600px){.pdf-top h2{font-size:16px}.pdf-top,.pdf-bottom{padding:10px}.pdf-bottom button{padding:9px}.pdf-cover{min-height:170px}}

/* Ficha comercial LED System */
.led-featured{overflow:hidden;border:1px solid rgba(207,169,95,.45);background:linear-gradient(155deg,#191611,#0b0b0b 70%)}
.led-featured .pdf-cover{padding-bottom:12px}
.led-lead{font-size:1rem!important;line-height:1.75!important;max-width:65ch;color:#eee2cd!important}
.led-highlights{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.led-pill{font-size:11px;letter-spacing:.025em;border:1px solid #68502e;color:#e3c38b;background:#20190f;border-radius:30px;padding:8px 11px}
.led-sales{padding:6px 24px 18px;color:#e6dfd2}
.led-sales h4{color:#e9c88d;font-size:19px;margin:8px 0 10px}
.led-sales p{line-height:1.65}
.led-topics{margin:14px 0 22px;padding-left:22px;line-height:1.65}
.led-topics li{padding:4px 0}
.led-topics li::marker{color:#d8b778}
.led-details{border:1px solid #68502e;border-radius:10px;padding:13px 16px;margin:16px 0;cursor:pointer}
.led-details summary{color:#e7c68a;font-weight:600}
.led-program{line-height:1.9;padding-left:23px;margin-bottom:0}
.led-audience{font-size:12px;color:#bcb4a5;line-height:1.65;margin-top:18px}
@media(max-width:600px){.led-sales{padding:6px 16px 16px}}

/* Login premium con profundidad sutil; resto del sitio intacto */
.auth-screen{position:relative;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 50% 22%,#34271a 0%,#15110c 34%,#080808 72%);padding:24px 16px;min-height:100svh}
.auth-screen::before{content:"";position:absolute;inset:-35%;z-index:-1;pointer-events:none;background:radial-gradient(circle at 26% 32%,rgba(238,210,130,.10),transparent 27%),radial-gradient(circle at 72% 68%,rgba(183,133,77,.08),transparent 30%);animation:ambientGlow 14s ease-in-out infinite alternate}
.auth-card{position:relative;isolation:isolate;overflow:hidden;width:min(100%,470px);padding:clamp(24px,5vw,42px);border-radius:23px;border:1px solid rgba(238,210,130,.35);background:linear-gradient(145deg,rgba(27,24,21,.96),rgba(11,11,11,.98) 52%,rgba(21,17,13,.96));box-shadow:0 30px 75px #000b,0 9px 22px #0009,inset 0 1px rgba(255,240,200,.11);transform:perspective(1100px) rotateX(1deg);animation:loginReveal .65s ease-out both}
.auth-card::before{content:"";position:absolute;top:0;left:12%;right:12%;height:1px;background:linear-gradient(90deg,transparent,#eed2829c,transparent);pointer-events:none}
.auth-logo{width:155px;max-height:105px;margin:0 auto 18px;filter:drop-shadow(0 7px 13px #000b) drop-shadow(0 0 9px #d5ad5430);animation:logoFloat 6s ease-in-out infinite}
.auth-card .eyebrow{font-size:10px;letter-spacing:3.2px}
.auth-card h1{font-size:clamp(22px,4.6vw,29px);line-height:1.35;letter-spacing:.3px;margin:13px auto 12px;max-width:390px;text-wrap:balance;text-shadow:0 3px 16px #000a}
.auth-card p{font-size:13px;line-height:1.6;margin:0 auto 23px}
.auth-card label{margin:12px 0;color:#e4d6ba}
.auth-card input{min-height:47px;background:#101012;border-color:#4b4030;transition:border-color .2s,box-shadow .2s,background .2s}
.auth-card input:focus{outline:none;border-color:#e2c37f;box-shadow:0 0 0 3px #d9b66c24;background:#171512}
.auth-card .primary{min-height:48px;border-radius:10px;box-shadow:0 6px 18px #0007,inset 0 1px #fff5;transition:transform .2s,box-shadow .2s,filter .2s}
.auth-card .primary:hover{transform:translateY(-2px);box-shadow:0 10px 22px #0009,0 0 22px #d9b66c30;filter:brightness(1.07)}
.auth-card .primary:active{transform:translateY(0)}
@keyframes ambientGlow{to{transform:translate(5%,3%) scale(1.05)}}
@keyframes logoFloat{50%{transform:translateY(-4px)}}
@keyframes loginReveal{from{opacity:0;transform:perspective(1100px) translateY(18px) rotateX(3deg)}to{opacity:1;transform:perspective(1100px) rotateX(1deg)}}
@media(max-width:480px){.auth-screen{padding:14px}.auth-card{padding:27px 22px;transform:none;border-radius:18px}.auth-logo{width:130px;max-height:85px;margin-bottom:14px}.auth-card h1{font-size:clamp(21px,6vw,26px)}.auth-card p{margin-bottom:18px}.auth-card label{margin:10px 0}.auth-card input{min-height:46px}}
@media(prefers-reduced-motion:reduce){.auth-screen::before,.auth-logo,.auth-card{animation:none!important}.auth-card{transform:none!important}}

.premium-course-card{margin-bottom:24px}.premium-course-card .premium-course-action{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:22px}.premium-course-card .premium-course-action button{background:#c9a15c;color:#110d08;border:0;border-radius:9px;padding:15px 23px;font-weight:700;cursor:pointer}.premium-course-card .premium-access{font-size:12px;letter-spacing:.08em;color:#d7bd84}.premium-course-card h2 em{color:#d8ad61}@media(max-width:700px){.premium-course-card{padding:24px 20px}.premium-course-card .featured-grid{display:block}.premium-course-card .course-mark{display:none}.premium-course-card h2{font-size:clamp(27px,7vw,40px);line-height:1.2}.premium-course-card .premium-course-action button{width:100%}}

/* Diseño horizontal unificado para la biblioteca de formaciones. */
#pdfCatalog.pdf-catalog{display:flex;flex-direction:column;gap:24px;margin:24px 0 36px;width:100%;min-width:0}
#pdfCatalog .premium-course-card{display:block;width:100%;max-width:100%;box-sizing:border-box;margin:0;padding:36px;border-radius:22px;overflow:hidden}
#pdfCatalog .premium-course-card .featured-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(135px,230px);align-items:center;gap:30px}
#pdfCatalog .premium-course-card .featured-grid>div:first-child{min-width:0}
#pdfCatalog .premium-course-card h2{font-size:clamp(29px,3.8vw,48px);line-height:1.14;overflow-wrap:break-word;max-width:740px}
#pdfCatalog .premium-course-card p{max-width:690px}
#pdfCatalog .premium-course-card .course-mark{display:block;font-size:clamp(55px,8vw,95px);line-height:1;color:rgba(216,180,105,.34);text-align:center;min-width:0}
#pdfCatalog .premium-course-card .course-mark span{font-size:10px;letter-spacing:1.7px;margin-top:12px;color:#b69a60}
#pdfCatalog .premium-course-action button{max-width:100%;white-space:normal;line-height:1.4}
@media(max-width:700px){
 #pdfCatalog.pdf-catalog{gap:16px}
 #pdfCatalog .premium-course-card{padding:24px 20px}
 #pdfCatalog .premium-course-card .featured-grid{display:block}
 #pdfCatalog .premium-course-card .course-mark{display:none}
 #pdfCatalog .premium-course-card h2{font-size:clamp(28px,7vw,40px)}
 #pdfCatalog .premium-course-action button{width:100%}
}

/* Rediseño visual inspirado en la navegación de apps educativas; sin alterar Firebase ni las compras */
:root{--gold:#e3c47e;--panel:#151515}
#appShell{background:#080808}
#appShell .top{position:sticky;top:0;z-index:30;border-bottom:1px solid #3a3123;background:#0b0b0bf5;box-shadow:0 12px 36px #0006}
#appShell .brand img{filter:drop-shadow(0 4px 12px #000)}
#appShell .shell main{max-width:1420px}
#appShell .hero{min-height:360px;display:flex;flex-direction:column;justify-content:center;padding:52px clamp(24px,5vw,70px);margin:24px 0 22px;border:1px solid #55432c;border-radius:24px;background:linear-gradient(90deg,#090909 0%,#0a0a0ae8 49%,#0a0a0a6a 100%),url('logo-oficial.png') right 9% center / auto 83% no-repeat,linear-gradient(135deg,#17130f,#090909);box-shadow:0 24px 65px #0009;overflow:hidden}
#appShell .hero h1{max-width:820px;font-size:clamp(32px,4.2vw,62px);line-height:1.15}
#appShell .hero p{font-size:15px;max-width:540px}
#appShell .featured-course{border-radius:23px;box-shadow:0 20px 55px #0008;transition:transform .25s,border-color .25s}
#appShell .featured-course:hover{transform:translateY(-3px);border-color:#d3ad68}
#appShell .section-head h2,#appShell .mobile-explore-title h2{font-family:'DM Sans',sans-serif;font-weight:750;letter-spacing:-.03em}
#appShell .course-card,#appShell .pdf-course-card{border-radius:20px;box-shadow:0 12px 38px #0007;transition:transform .25s,box-shadow .25s,border-color .25s}
#appShell .course-card:hover,#appShell .pdf-course-card:hover{transform:translateY(-4px);border-color:#c6a569;box-shadow:0 18px 42px #000a}
#appShell .course-card h3{font-family:'DM Sans',sans-serif;font-weight:700;letter-spacing:-.025em}
#appShell .course-card button,#appShell .pdf-card-bottom button{border-radius:11px;min-height:46px}
#appShell .sidebar{background:#0d0d0d}
#appShell .navitem{border-radius:12px;padding:13px 15px}
.mobile-explore-title{display:none}.mobile-bottom-nav{display:none}
@media(max-width:760px){
 #appShell .top{padding:10px 16px;min-height:70px}
 #appShell .brand img{width:48px;height:48px}
 #appShell .brand strong{font-size:10px;line-height:1.4;max-width:170px}
 #appShell .account{font-size:11px}
 #appShell .account #accountName{display:none}
 #appShell .account #logout{padding:8px 10px;font-size:11px}
 #appShell .sidebar{display:none}
 #appShell .shell main{padding:0 15px 95px}
 #appShell .hero{margin:14px 0 24px;min-height:330px;border-radius:22px;padding:32px 24px;background:linear-gradient(180deg,#0a0a0aaf 0%,#0a0a0af2 80%),url('logo-oficial.png') center 14% / auto 52% no-repeat,#18130d}
 #appShell .hero h1{font-size:clamp(28px,8vw,40px);margin:12px 0}
 #appShell .hero p{font-size:13px}
 #appShell .featured-course{padding:22px 20px;border-radius:20px;margin:18px 0 26px}
 #appShell .featured-course h2{font-size:clamp(25px,7vw,36px)}
 #appShell .section-head{margin:26px 0 14px}
 #appShell .section-head h2{font-size:25px}
 .mobile-explore-title{display:block;margin:20px 0 12px}
 .mobile-explore-title h2{font-size:28px;margin:6px 0}
 .mobile-explore-title p{color:#bfb7a9;font-size:13px;margin:0}
 #appShell .course-catalog{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
 #appShell .course-card{padding:17px 13px;min-height:240px;border-radius:18px}
 #appShell .course-card h3{font-size:17px;line-height:1.25}
 #appShell .course-card-meta{font-size:11px}
 #appShell .course-card button{padding:10px 6px;font-size:12px}
 #appShell .pdf-cover{min-height:145px}
 #appShell .pdf-course-card{border-radius:18px}
 #appShell footer{padding-bottom:90px}
 .mobile-bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:80;display:flex;align-items:center;justify-content:space-around;gap:2px;padding:8px 8px max(9px,env(safe-area-inset-bottom));background:#111111f7;border-top:1px solid #4a3a25;backdrop-filter:blur(18px);box-shadow:0 -12px 32px #0009}
 .mobile-bottom-nav .bottom-nav-item{display:flex;flex-direction:column;align-items:center;gap:0;flex:1;min-width:0;background:transparent;border:0;border-radius:12px;color:#9e9b95;padding:3px 2px 5px;font-size:10px;font-weight:600}
 .mobile-bottom-nav .bottom-nav-item.selected{color:#eed282;background:#2c2418}
 .mobile-bottom-nav .nav-ico{font-size:27px;line-height:1.2;font-weight:400}
 #appShell[hidden] .mobile-bottom-nav{display:none}
}
@media(max-width:380px){#appShell .course-catalog{grid-template-columns:1fr}#appShell .course-card{min-height:200px}}
@media(prefers-reduced-motion:reduce){#appShell .course-card,#appShell .featured-course{transition:none}}

/* Casa de las Extensiones · rediseño Lash App 2026 */
:root{--lash-gold:#e6c780;--lash-muted:#b5aa98}
#appShell .shell{display:block}#appShell .sidebar{display:none!important}
#appShell .shell main{width:min(100%,1220px);max-width:1220px;margin:auto;padding:20px clamp(16px,3vw,36px) 110px;box-sizing:border-box}
#appShell .top{padding:10px clamp(16px,3vw,36px)}
#appShell .lash-hero{min-height:0;position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:clamp(25px,4vw,45px);margin:8px 0 25px;background:radial-gradient(circle at 85% 20%,#3d2c18 0%,transparent 37%),linear-gradient(125deg,#201a13,#100e0c 72%);border:1px solid #5d4829;border-radius:22px;overflow:hidden}
#appShell .lash-hero h1{font-size:clamp(30px,4vw,54px);line-height:1.12;margin:13px 0;color:white;letter-spacing:-.03em}
#appShell .lash-hero h1 em{color:var(--lash-gold);font-style:normal}
#appShell .lash-hero p{font-size:14px;color:#cfc2ad;max-width:440px;margin-bottom:22px}
.lash-hero-monogram{font-size:clamp(95px,15vw,210px);line-height:1;color:#e3c17b18;flex-shrink:0}
.lash-gold-btn{border:0;border-radius:11px;background:#d9b874;color:#17120b;font-weight:800;padding:13px 20px;cursor:pointer}
.lash-intro{margin-bottom:24px}.lash-section-head{display:flex;align-items:center;justify-content:space-between;margin:20px 0 13px}.lash-section-head h2{margin:4px 0;color:#fff;font-size:clamp(23px,3vw,32px)}.lash-section-mark{color:#e6c780;font-size:26px}
.lash-shortcuts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.lash-shortcuts button{background:linear-gradient(145deg,#22201c,#131313);border:1px solid #463928;border-radius:17px;padding:20px;text-align:left;color:#fff;display:flex;flex-direction:column;gap:6px;cursor:pointer}.lash-shortcuts strong{font-size:16px}.lash-shortcuts small{color:#b8ae9d}.lash-shortcut-icon{font-size:28px;color:#e6c780}
.lash-category-row{display:flex;overflow-x:auto;gap:10px;padding:2px 0 13px;scrollbar-width:none}.lash-category-row button{flex:none;border:1px solid #59472d;border-radius:40px;padding:11px 18px;background:#1c1915;color:#e9d6b2;cursor:pointer}
#appShell .lash-featured{margin:12px 0 24px;padding:clamp(23px,4vw,35px);border:1px solid #55432d;background:linear-gradient(120deg,#1c1915,#111);border-radius:20px}
#appShell .lash-featured h2{font-size:clamp(25px,3vw,39px)}
#appShell .mobile-explore-title{display:none!important}
#appShell #pdfCatalog.pdf-catalog{display:flex;flex-direction:row;overflow-x:auto;gap:14px;scroll-snap-type:x mandatory;padding-bottom:18px;margin:18px 0 28px;scrollbar-color:#7a613d #181818}
#appShell #pdfCatalog .premium-course-card{flex:0 0 min(340px,85vw);scroll-snap-align:start;padding:23px;min-height:285px;display:flex;flex-direction:column;justify-content:center}
#appShell #pdfCatalog .premium-course-card .featured-grid{display:block}#appShell #pdfCatalog .premium-course-card .course-mark{display:none}#appShell #pdfCatalog .premium-course-card h2{font-size:clamp(23px,2.6vw,30px)}
#appShell .course-catalog{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:15px}
#appShell .course-card{min-height:245px;background:linear-gradient(155deg,#252018,#131313 65%);border:1px solid #51412b;padding:23px;display:flex;flex-direction:column;justify-content:flex-end;position:relative}
#appShell .course-card::before{content:'✦';position:absolute;top:12px;right:18px;font-size:36px;color:#dfbf7840}
#appShell .course-card button{margin-top:auto}
.lash-profile{padding:28px 5px 50px}.lash-profile h2{font-size:30px}.lash-profile-card{display:flex;gap:17px;align-items:center;padding:20px;background:#191714;border:1px solid #51412b;border-radius:16px;margin:20px 0}.lash-profile-card p{color:#b6ab9a;margin:5px 0}.lash-avatar{width:56px;height:56px;border-radius:50%;background:#372b1c;color:#e6c780;display:grid;place-items:center;font-size:30px}
.lash-bottom-nav{display:flex!important;position:fixed;bottom:0;left:0;right:0;z-index:90;background:#10100ff5;border-top:1px solid #55452e;box-shadow:0 -10px 30px #0009;padding:9px max(12px,env(safe-area-inset-right)) max(9px,env(safe-area-inset-bottom));justify-content:center;gap:8px;backdrop-filter:blur(18px)}
.lash-bottom-nav .bottom-nav-item{display:flex;flex-direction:column;align-items:center;gap:3px;min-width:95px;padding:7px 16px;background:transparent;border:0;border-radius:13px;color:#aaa093;font-size:12px;cursor:pointer}.lash-bottom-nav .bottom-nav-item.selected{color:#eed282;background:#292116}.lash-bottom-nav .nav-ico{font-size:24px;line-height:1.1}
#appShell footer{padding-bottom:88px}
@media(max-width:760px){#appShell .shell main{padding:12px 15px 105px}#appShell .lash-hero{padding:25px 22px;margin:7px 0 17px;min-height:0;background:radial-gradient(circle at 100% 0%,#443019,transparent 55%),#17130f}#appShell .lash-hero h1{font-size:31px}#appShell .lash-hero p{font-size:13px}#appShell .lash-hero-monogram{display:none}.lash-shortcuts{gap:8px}.lash-shortcuts button{padding:12px 9px;min-height:112px}.lash-shortcuts strong{font-size:12px}.lash-shortcuts small{font-size:10px}.lash-shortcut-icon{font-size:23px}.lash-section-head h2{font-size:23px}#appShell .lash-featured{padding:22px 18px}#appShell #pdfCatalog .premium-course-card{flex-basis:82vw;min-height:255px}#appShell .course-catalog{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;padding-bottom:18px}#appShell .course-card{flex:0 0 78vw;min-height:250px;scroll-snap-align:start} .lash-bottom-nav{justify-content:space-around;gap:1px}.lash-bottom-nav .bottom-nav-item{min-width:0;flex:1;padding:5px 2px;font-size:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* V2 · Inspiración Lash Expert, sin fotografías externas */
#appShell .shell main{max-width:1320px}
#appShell .lash-hero{padding:clamp(24px,4vw,42px);min-height:290px;background:radial-gradient(circle at 75% 40%,#46341f 0%,transparent 37%),linear-gradient(120deg,#191510,#0c0c0c 70%);border-color:#66502e}
#appShell .lash-hero h1{font-size:clamp(34px,4.6vw,60px);font-family:Georgia,serif;font-weight:500;letter-spacing:-.045em;max-width:650px}
#appShell .lash-hero .lash-hero-copy{position:relative;z-index:1}
.lash-hero-art{position:relative;flex:0 0 33%;aspect-ratio:1;max-width:320px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-direction:column;background:radial-gradient(circle,#342818 0%,#1b1711 42%,#100e0c 72%);border:1px solid #9c784344;box-shadow:0 0 70px #c6a36512,inset 0 0 70px #e2b96913;transform:rotate(-7deg)}
.lash-art-orbit{font-size:72px;color:#b99b63;line-height:1}.lash-art-word{font-family:Georgia,serif;color:#f3e2bc;text-align:center;letter-spacing:.2em;font-size:23px}.lash-art-caption{font-size:9px;color:#bba57c;letter-spacing:.14em;margin-top:16px}
.lash-featured-heading,.lash-learning-heading{margin:25px 0 12px}.lash-featured-heading h2,.lash-learning-heading h2{color:#fff;font-size:clamp(24px,3vw,34px);margin:6px 0}.lash-featured-heading h2 span,.lash-learning-heading h2 span{color:#e6c780}.lash-featured-heading p,.lash-learning-heading p{color:#a99d8b;margin:4px 0;font-size:13px}
#appShell .lash-featured{min-height:220px;position:relative;overflow:hidden;background:radial-gradient(circle at 90% 30%,#5e4425 0%,transparent 38%),linear-gradient(125deg,#272018,#100e0b);padding:clamp(23px,3vw,36px);box-shadow:0 12px 45px #0004}
#appShell .lash-featured .course-mark{font-family:Georgia,serif;font-size:clamp(90px,12vw,170px);color:#e6c78022}
#appShell .lash-intro{display:flex;flex-direction:column}.lash-category-title{order:0}.lash-category-row{order:1}.lash-intro>.lash-section-head:first-child{order:2;margin-top:26px}.lash-shortcuts{order:3}
#appShell .lash-shortcuts button{min-height:128px;border-color:#4c3d28;background:linear-gradient(135deg,#28221a,#12110f);transition:transform .2s,border-color .2s}
#appShell .lash-shortcuts button:hover{transform:translateY(-3px);border-color:#c9a15c}
#appShell #pdfCatalog .premium-course-card{flex-basis:min(420px,84vw);min-height:340px;border-radius:20px;background:radial-gradient(circle at 90% 20%,#594023,transparent 50%),linear-gradient(135deg,#242019,#100f0e);border:1px solid #705633;scroll-snap-align:start}
#appShell .course-catalog{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:15px;padding-bottom:20px;scrollbar-width:thin}
#appShell .course-card{flex:0 0 min(340px,84vw);min-height:325px;scroll-snap-align:start;border-radius:20px;background:radial-gradient(circle at 80% 15%,#62482955,transparent 40%),linear-gradient(150deg,#252018,#111);transition:transform .2s}
#appShell .course-card::before{content:'✦';font-size:88px;top:10px;right:28px;color:#d6b67525}
#appShell .course-card:hover{transform:translateY(-3px)}
.lash-bottom-nav{width:max-content;max-width:calc(100% - 24px);left:50%;right:auto;transform:translateX(-50%);bottom:14px;border:1px solid #5b482d;border-radius:24px;padding:8px 14px;box-shadow:0 12px 45px #000b}
.lash-bottom-nav .bottom-nav-item{min-width:115px}.lash-bottom-nav .bottom-nav-item.selected{background:#392a18}
#appShell #adminQuickAccess:not([hidden]){border:1px solid #705633;color:#ead3a7;background:#201b15;border-radius:9px;padding:9px 14px;cursor:pointer}
@media(max-width:760px){#appShell .lash-hero{min-height:0;padding:22px 20px 18px;gap:5px}#appShell .lash-hero h1{font-size:clamp(30px,8vw,40px)}#appShell .lash-hero-art{flex-basis:80px;min-width:80px;height:100px;border:0;background:transparent;box-shadow:none}.lash-art-orbit{font-size:34px}.lash-art-word{font-size:9px}.lash-art-caption{display:none}#appShell .lash-hero p{max-width:230px}#appShell .lash-featured{min-height:0}#appShell .lash-featured .course-mark{display:none}.lash-bottom-nav{width:100%;max-width:none;bottom:0;left:0;transform:none;border-radius:18px 18px 0 0;border-left:0;border-right:0;border-bottom:0;padding:9px 5px max(9px,env(safe-area-inset-bottom))}.lash-bottom-nav .bottom-nav-item{min-width:0}#appShell .lash-shortcuts{grid-template-columns:repeat(3,minmax(0,1fr))}#appShell .lash-shortcuts button{min-height:102px;padding:10px}#appShell #pdfCatalog .premium-course-card{min-height:300px}#appShell .course-card{min-height:300px}}

/* Portadas administrables de formaciones */
.course-cover{width:100%;aspect-ratio:16/9;min-height:130px;background:linear-gradient(135deg,#17130e,#302417 55%,#090909);border:1px solid #51412a;border-radius:13px;overflow:hidden;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:9px;margin-bottom:17px;color:#d5b778}.course-cover img{width:100%;height:100%;object-fit:cover;display:block}.course-cover-placeholder{font-size:40px}.course-cover small{font-size:10px;letter-spacing:1.5px;color:#b8a78c}.photo-admin{padding:25px;margin:22px 0;border:1px solid #534127;border-radius:18px;background:#10100f}.course-photo-admin-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:13px;margin-top:18px}.photo-admin-row{display:flex;gap:12px;padding:12px;border:1px solid #473924;border-radius:12px;background:#181613;align-items:center}.photo-admin-preview{flex:0 0 86px;height:75px;border-radius:9px;background:#30261a;display:flex;align-items:center;justify-content:center;color:#d8ba7c;font-size:28px;overflow:hidden}.photo-admin-preview img{width:100%;height:100%;object-fit:cover}.photo-admin-info{display:flex;flex-direction:column;align-items:flex-start;gap:7px;min-width:0}.photo-admin-info strong{font-size:13px;overflow-wrap:anywhere}.photo-admin-info small{font-size:11px;color:#b6a994}.photo-admin-info input{display:none}.photo-admin-info button{font-size:12px;padding:8px 12px}.premium-course-card>.course-cover{max-width:360px;margin:15px 0 0}.course-card>.course-cover{min-height:140px}@media(max-width:700px){.photo-admin{padding:14px}.course-cover{min-height:155px}}

/* V5 — Corrección de navegación y tarjetas, sin alterar lógica Firebase */
@media (min-width: 761px) {
  #appShell .course-catalog {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));overflow:visible;gap:16px;padding-bottom:20px;}
  #appShell .course-catalog .course-card {flex:auto;width:auto;min-width:0;min-height:0;padding:18px;}
  #appShell .course-card .course-cover {width:100%;min-height:0;aspect-ratio:16/9;}
  #appShell #pdfCatalog.pdf-catalog {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));overflow:visible;gap:16px;}
  #appShell #pdfCatalog .premium-course-card {flex:auto;min-width:0;min-height:0;padding:18px;}
  #appShell .lash-bottom-nav {position:static!important;transform:none!important;left:auto!important;right:auto!important;bottom:auto!important;width:max-content;max-width:calc(100% - 32px);margin:24px auto 32px;}
  #appShell .lash-bottom-nav .bottom-nav-item {min-width:100px;}
}
@media (min-width:761px) and (max-width:1100px) {
  #appShell .course-catalog,#appShell #pdfCatalog.pdf-catalog {grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:760px) {
  #appShell .lash-bottom-nav {position:fixed!important;bottom:0!important;left:0!important;right:0!important;transform:none!important;width:100%!important;max-width:none!important;}
  #appShell .shell main {padding-bottom:130px!important;}
  #appShell .course-catalog {scroll-padding-inline:15px;}
  #appShell .course-card {flex-basis:min(310px,82vw);}
}

/* V6: portada editorial con fotografía propia */
#appShell .lash-hero.lash-hero-photo{position:relative;isolation:isolate;display:flex;align-items:center;min-height:345px;padding:clamp(30px,5vw,62px);background:#17130f;border:1px solid #3b3022;border-radius:19px;overflow:hidden;margin-bottom:22px}
#appShell .lash-hero-photo .lash-hero-media{position:absolute;inset:0;z-index:-1;overflow:hidden}
#appShell .lash-hero-photo .lash-hero-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0b0908 0%,#0b0908f5 26%,#0b0908b5 52%,#0b09082b 100%)}
#appShell .lash-hero-photo .lash-hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 36%;display:block}
#appShell .lash-hero-photo .lash-hero-media img[hidden]{display:none}
#appShell .lash-hero-photo .lash-hero-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:flex-end;justify-content:center;padding-right:14%;gap:12px;background:radial-gradient(circle at 75% 40%,#493622 0%,#17120d 46%,#0c0b0a 100%);color:#c6a56d}
#appShell .lash-hero-photo .lash-hero-placeholder span{font-size:84px}#appShell .lash-hero-photo .lash-hero-placeholder small{font-size:9px;letter-spacing:2px}
#appShell .lash-hero-photo .lash-hero-copy{max-width:610px;z-index:2}
#appShell .lash-hero-photo h1{font-size:clamp(36px,4.5vw,60px);line-height:1.08;letter-spacing:-.045em;margin:17px 0 15px;font-weight:500}
#appShell .lash-hero-photo p{max-width:450px;font-size:15px;line-height:1.65}
.academy-hero-admin{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin:18px 0 24px}.academy-hero-preview{width:200px;height:105px;border-radius:12px;border:1px solid #675136;background:#201913;color:#cdb27b;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;overflow:hidden}.academy-hero-preview img{width:100%;height:100%;object-fit:cover}
@media(max-width:760px){#appShell .lash-hero.lash-hero-photo{display:flex;flex-direction:column;padding:0;min-height:0;gap:0}#appShell .lash-hero-photo .lash-hero-media{position:relative;inset:auto;z-index:0;width:100%;height:195px;flex:none}#appShell .lash-hero-photo .lash-hero-media:after{background:linear-gradient(0deg,#17130f,transparent 60%)}#appShell .lash-hero-photo .lash-hero-placeholder{align-items:center;padding:0}#appShell .lash-hero-photo .lash-hero-placeholder span{font-size:50px}#appShell .lash-hero-photo .lash-hero-copy{padding:10px 22px 26px;width:100%;box-sizing:border-box}#appShell .lash-hero-photo h1{font-size:clamp(31px,8vw,42px)}#appShell .lash-hero-photo p{max-width:none;font-size:13px}}