/* Lucas EGA Academy — V3 prototype */
:root{
  --bg:#0b0f0d;
  --bg2:#101613;
  --card:#141b17;
  --line:#223026;
  --green:#1a5c3a;
  --green-bright:#2f9e5f;
  --gold:#d4a437;
  --gold-soft:#f0d488;
  --text:#e8efe9;
  --muted:#9fb3a4;
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}
a{color:var(--gold-soft);text-decoration:none}
a:hover{color:var(--gold)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* Header */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(11,15,13,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;color:var(--text)}
.brand .logo{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:1.5rem;
  background:linear-gradient(135deg,var(--green),#0d2f1e);
  border:1px solid var(--green-bright);
}
.brand small{display:block;font-weight:400;color:var(--muted);font-size:.72rem;letter-spacing:.12em}
nav.links{display:flex;gap:6px;flex-wrap:wrap}
nav.links a{
  padding:8px 14px;border-radius:999px;color:var(--text);font-size:.92rem;
  border:1px solid transparent;
}
nav.links a:hover,nav.links a.active{border-color:var(--green-bright);background:#12241a;color:var(--gold-soft)}

/* Hero */
.hero{
  padding:70px 0 50px;
  background:
    radial-gradient(600px 300px at 15% 10%,rgba(47,158,95,.14),transparent),
    radial-gradient(700px 340px at 85% 20%,rgba(212,164,55,.10),transparent);
}
.hero h1{font-size:clamp(1.9rem,4.6vw,3.2rem);line-height:1.15;margin-bottom:14px}
.hero h1 .hl{color:var(--gold)}
.hero h1 .gr{color:var(--green-bright)}
.hero p.lead{color:var(--muted);font-size:1.08rem;max-width:640px;margin-bottom:26px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:13px 26px;border-radius:999px;font-weight:700;cursor:pointer;border:none;
  font-size:1rem;transition:transform .12s ease,box-shadow .12s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold),#a97c1e);color:#141005;box-shadow:0 6px 22px rgba(212,164,55,.25)}
.btn-green{background:linear-gradient(135deg,var(--green-bright),var(--green));color:#fff;box-shadow:0 6px 22px rgba(47,158,95,.25)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:34px}
.stat b{display:block;font-size:1.7rem;color:var(--gold)}
.stat span{color:var(--muted);font-size:.9rem}

/* Sections */
section.block{padding:56px 0}
.sec-head{margin-bottom:26px}
.sec-head .kicker{color:var(--green-bright);text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;font-weight:700}
.sec-head h2{font-size:clamp(1.4rem,3vw,2rem);margin:6px 0 8px}
.sec-head p{color:var(--muted);max-width:700px}

/* Course cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;display:flex;flex-direction:column;gap:10px;
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--green-bright);box-shadow:0 12px 30px rgba(0,0,0,.4)}
.card .ico{font-size:2rem}
.card h3{font-size:1.08rem}
.card .meta{color:var(--muted);font-size:.86rem}
.card .row{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.tag{font-size:.75rem;padding:4px 10px;border-radius:999px;background:#0f1a13;border:1px solid var(--line);color:var(--muted)}
.tag.vid{border-color:var(--green);color:var(--green-bright)}
.tag.lib{border-color:#6b5416;color:var(--gold-soft)}

/* Feature bands */
.band{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.feat .ico{font-size:2.2rem;margin-bottom:10px}
.feat h3{margin-bottom:8px;color:var(--gold-soft)}
.feat p{color:var(--muted);font-size:.95rem}

/* Tabs */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:26px 0}
.tab-btn{
  padding:11px 22px;border-radius:999px;background:var(--card);border:1px solid var(--line);
  color:var(--text);cursor:pointer;font-size:.95rem;font-weight:600;
}
.tab-btn.active{background:var(--green);border-color:var(--green-bright);color:#fff}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* Video placeholders */
.videos{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:18px}
.vid-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.vid-frame{
  aspect-ratio:9/16;background:linear-gradient(160deg,#0d2f1e,#1a5c3a 60%,#0d2f1e);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  position:relative;color:#fff;
}
.vid-frame .play{
  width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font-size:1.6rem;
  background:rgba(0,0,0,.45);border:2px solid var(--gold);
}
.vid-frame .dur{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,.65);padding:3px 9px;border-radius:8px;font-size:.78rem}
.vid-frame .fmt{position:absolute;top:10px;left:10px;background:rgba(0,0,0,.55);padding:3px 9px;border-radius:8px;font-size:.72rem;color:var(--gold-soft)}
.vid-body{padding:12px 14px}
.vid-body h4{font-size:.92rem;margin-bottom:4px}
.vid-body p{color:var(--muted);font-size:.8rem}

/* Book preview pages */
.book-pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.book-page{
  background:#f7f3e8;color:#222;border-radius:8px;padding:22px 18px;min-height:300px;
  box-shadow:0 8px 24px rgba(0,0,0,.45);font-size:.85rem;line-height:1.55;
}
.book-page h5{font-size:.95rem;margin-bottom:8px;color:#12351f;border-bottom:2px solid var(--green);padding-bottom:6px}
.book-page code{background:#e8e2d2;padding:1px 5px;border-radius:4px;font-size:.78rem}
.book-page pre{background:#1c2420;color:#cfe6d4;padding:10px;border-radius:6px;font-size:.72rem;overflow-x:auto;margin:8px 0}

/* Editor */
.editor-box{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:820px){.editor-box{grid-template-columns:1fr}}
textarea.code{
  width:100%;min-height:320px;background:#0d1210;color:#cfe6d4;border:1px solid var(--line);
  border-radius:var(--radius);padding:16px;font-family:'Cascadia Code',Consolas,monospace;font-size:.88rem;resize:vertical;
}
.preview-pane{background:#fff;border-radius:var(--radius);min-height:320px;overflow:hidden;border:1px solid var(--line)}
.preview-pane iframe{width:100%;height:320px;border:none;background:#fff}
.toolbar-row{display:flex;gap:10px;margin:12px 0;flex-wrap:wrap}

/* Quiz */
.quiz{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;max-width:760px}
.q{margin-bottom:22px;padding-bottom:18px;border-bottom:1px dashed var(--line)}
.q:last-of-type{border-bottom:none}
.q p{font-weight:700;margin-bottom:10px}
.q label{display:block;padding:9px 14px;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;cursor:pointer;font-size:.93rem}
.q label:hover{border-color:var(--green-bright)}
.q input{margin-right:10px}
.quiz-result{margin-top:16px;padding:16px;border-radius:10px;font-weight:700;display:none}
.quiz-result.ok{display:block;background:#12351f;border:1px solid var(--green-bright)}
.quiz-result.bad{display:block;background:#3a1414;border:1px solid #a33}

/* Reader */
.reader-shell{display:grid;grid-template-columns:260px 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-height:70vh;background:var(--card)}
@media(max-width:820px){.reader-shell{grid-template-columns:1fr}.reader-index{display:none}.reader-index.open{display:block}}
.reader-index{background:#0d1411;border-right:1px solid var(--line);padding:18px;overflow-y:auto}
.reader-index h4{color:var(--gold-soft);margin-bottom:12px;font-size:.9rem;text-transform:uppercase;letter-spacing:.1em}
.reader-index button{display:block;width:100%;text-align:left;background:none;border:none;color:var(--muted);padding:9px 10px;border-radius:8px;cursor:pointer;font-size:.88rem}
.reader-index button:hover,.reader-index button.cur{background:#16281d;color:var(--text)}
.reader-main{display:flex;flex-direction:column}
.reader-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 16px;border-bottom:1px solid var(--line);background:#0d1411}
.tool-btn{background:var(--card);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:8px 13px;cursor:pointer;font-size:.88rem}
.tool-btn:hover{border-color:var(--green-bright)}
.tool-btn.on{background:var(--green);border-color:var(--green-bright);color:#fff}
.page-ind{font-size:.88rem;color:var(--muted);margin:0 6px}
.reader-stage{flex:1;display:flex;justify-content:center;align-items:flex-start;padding:30px 20px;overflow:auto;background:#0a0e0b}
.reader-page{
  background:#f7f3e8;color:#1d1d1d;border-radius:6px;box-shadow:0 14px 44px rgba(0,0,0,.55);
  width:100%;max-width:640px;min-height:560px;padding:44px 40px;transition:transform .15s ease;
  transform-origin:top center;
}
.reader-page h3{color:#12351f;border-bottom:3px solid var(--green);padding-bottom:10px;margin-bottom:16px}
.reader-page p{margin-bottom:12px;font-size:.95rem}
.reader-page pre{background:#1c2420;color:#cfe6d4;padding:12px;border-radius:8px;font-size:.8rem;overflow-x:auto;margin:12px 0}
body.night .reader-page{background:#151a17;color:#cfd8cf}
body.night .reader-page h3{color:var(--gold-soft);border-color:var(--gold)}
body.night .reader-page pre{background:#0b0f0d}
.bookmark-flag{color:var(--gold);font-weight:700}

/* Store */
.price{font-size:1.5rem;font-weight:800;color:var(--gold)}
.price small{font-size:.85rem;color:var(--muted);font-weight:400}
.paypal-btn{
  display:inline-block;background:#ffc439;color:#003087;font-weight:800;padding:12px 30px;border-radius:999px;
  border:none;cursor:pointer;font-size:1rem;margin-top:10px;
}
.paypal-btn:hover{filter:brightness(1.05)}
.sample-note{background:#2a2108;border:1px dashed var(--gold);color:var(--gold-soft);border-radius:10px;padding:12px 16px;font-size:.85rem;margin-top:14px}

/* Mascot band */
.mascot{display:flex;gap:22px;align-items:center;background:linear-gradient(135deg,#10241a,#0b0f0d);border:1px solid var(--green);border-radius:18px;padding:28px;flex-wrap:wrap}
.mascot .big{font-size:3.4rem}
.mascot h3{color:var(--gold-soft);margin-bottom:6px}
.mascot p{color:var(--muted)}

footer.site{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:.88rem;margin-top:40px}
footer.site .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

.badge{display:inline-block;background:var(--green);color:#fff;font-size:.72rem;font-weight:700;padding:4px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.08em}
.badge.gold{background:var(--gold);color:#141005}

/* V3: imágenes generadas */
.brand img.logo{width:42px;height:42px;border-radius:12px;object-fit:cover;border:1px solid var(--green-bright);display:block}
.hero-banner{width:100%;border-radius:18px;margin:10px 0 34px;border:1px solid var(--green);box-shadow:0 10px 40px rgba(0,0,0,.5);display:block}
.mascot img.mascot-img{width:150px;height:150px;border-radius:18px;object-fit:cover;border:1px solid var(--green-bright);flex-shrink:0}
.cert-frame{width:100%;border-radius:18px;border:1px solid var(--gold);margin-top:24px;box-shadow:0 10px 40px rgba(212,164,55,.15);display:block}
.practice-img{width:100%;border-radius:14px;border:1px solid var(--green);margin-bottom:18px;display:block}
.brand img.brand-banner{height:46px;width:auto;max-width:300px;object-fit:cover;border-radius:10px;border:1px solid var(--green);margin-left:4px;display:block}
@media(max-width:640px){.brand img.brand-banner{display:none}}
.scroll-hint{display:flex;flex-direction:column;align-items:center;gap:2px;margin:34px auto 0;color:var(--gold);text-decoration:none;font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;animation:floaty 1.8s ease-in-out infinite}
.scroll-hint i{font-style:normal;font-size:1.8rem;line-height:1;filter:drop-shadow(0 0 8px rgba(212,175,55,.6))}
@keyframes floaty{0%,100%{transform:translateY(0);opacity:.75}50%{transform:translateY(10px);opacity:1}}
.portada{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:top;border-radius:12px;border:1px solid var(--green);margin-bottom:12px;display:block;background:#0d0d0d}