:root{--primary:#2E7D32;--primary-dark:#27632B;--bg-dark:#0F1419;--bg-light:#f8fafc;--text-dark:#1a202c;--text-light:#4a5568;--success:#22c55e}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6;color:var(--text-dark);overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block;height:auto}
header{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.1);position:sticky;top:0;z-index:100}
nav{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.logo{font-weight:700;font-size:1.25rem;color:var(--primary);display:flex;align-items:center;gap:.75rem}
.logo img{height:48px;width:auto}
.nav-links{display:flex;gap:2rem;list-style:none;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--text-dark);font-weight:500;transition:.2s;display:inline-flex;align-items:center;min-height:44px}
.nav-links .btn-primary{color:#fff}
.nav-links a:hover{color:var(--primary)}
.nav-toggle{display:none;flex-direction:column;align-items:center;justify-content:center;gap:6px;width:44px;height:44px;padding:0;background:none;border:none;border-radius:10px;cursor:pointer;flex:0 0 auto}
.nav-toggle span{display:block;width:24px;height:2px;border-radius:2px;background:var(--text-dark);transition:transform .25s ease,opacity .2s ease}
.nav-toggle:hover{background:var(--bg-light)}
.nav-toggle[aria-expanded='true'] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded='true'] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded='true'] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.btn{padding:.625rem 1.5rem;border-radius:50px;font-weight:500;transition:.2s;display:inline-flex;align-items:center;gap:.5rem;border:none;cursor:pointer}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-white{background:#fff;color:var(--primary)}
.hero{background:linear-gradient(135deg,#1B5E20 0%,#2E7D32 100%);color:#fff;padding:6rem 2rem 4rem;text-align:center}
.hero-content{max-width:900px;margin:0 auto}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:700;line-height:1.15;margin-bottom:1.5rem}
.hero p{font-size:clamp(1.125rem,2vw,1.25rem);color:rgba(255,255,255,.9);margin-bottom:2.5rem;max-width:700px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.section{padding:5rem 2rem}
.container{max-width:1200px;margin:0 auto}
.section-header{text-align:center;margin-bottom:3rem}
.section-header h2{font-size:clamp(2rem,4vw,2.5rem);font-weight:700;margin-bottom:1rem}
.section-header p{color:var(--text-light);font-size:1.125rem;max-width:700px;margin:0 auto}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}
.feature-card{background:#fff;padding:2rem;border-radius:1rem;box-shadow:0 4px 6px -1px rgba(0,0,0,.1);transition:.2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 10px 15px -3px rgba(0,0,0,.1)}
.feature-icon{width:3rem;height:3rem;background:rgba(46,125,50,0.1);border-radius:.75rem;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.5rem;margin-bottom:1.5rem}
.feature-card h3{font-size:1.25rem;font-weight:600;margin-bottom:.75rem}
.feature-card p{color:var(--text-light)}
.courses-section{background:var(--bg-light)}
.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:2rem}
.course-card{background:#fff;border-radius:1rem;overflow:hidden;box-shadow:0 4px 6px -1px rgba(0,0,0,.1);transition:.2s;display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px rgba(0,0,0,.1)}
.course-header{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;padding:2rem;text-align:center}
.course-badge{display:inline-block;background:rgba(255,255,255,.2);padding:.25rem .75rem;border-radius:50px;font-size:.875rem;font-weight:500;margin-bottom:1rem;backdrop-filter:blur(10px)}
.course-header h3{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}
.course-content{padding:2rem;display:flex;flex-direction:column;flex:1}
.course-meta{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.5rem}
.meta-item{display:flex;align-items:center;gap:.5rem;color:var(--text-light)}
.course-list{list-style:none;margin-bottom:2rem;flex:1}
.course-list li{display:flex;align-items:start;gap:.75rem;margin-bottom:.75rem}
.check{color:var(--success);margin-top:.25rem}
.cta-section{background:linear-gradient(135deg,#1B5E20 0%,#2E7D32 100%);color:#fff;text-align:center}
.cta-content{max-width:700px;margin:0 auto}
.cta-section h2{font-size:clamp(2rem,4vw,2.5rem);margin-bottom:1rem}
.cta-section p{color:rgba(255,255,255,.9);font-size:1.125rem;margin-bottom:2rem}
footer{background:var(--bg-dark);color:#fff;padding:3rem 2rem 2rem}
.footer-content{max-width:1200px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:3rem;margin-bottom:3rem}
.footer-brand p{color:rgba(255,255,255,.7);margin-top:1rem}
.footer-links h4{font-weight:600;margin-bottom:1.5rem}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:.75rem}
.footer-links a{color:rgba(255,255,255,.7);transition:.2s}
.footer-links a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.6)}
.tag{background:rgba(34,197,94,.1);color:var(--success);padding:.25rem .75rem;border-radius:50px;font-size:.875rem;font-weight:600;display:inline-block;margin-bottom:1rem}
@media(max-width:768px){nav{flex-wrap:nowrap;padding:.75rem 1rem}.nav-toggle{display:flex}.logo img{height:40px}.nav-links{display:none}.nav-links.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:.5rem 1rem 1rem;background:#fff;border-top:1px solid #e2e8f0;box-shadow:0 12px 24px rgba(15,20,25,.12);max-height:calc(100vh - 64px);overflow-y:auto;-webkit-overflow-scrolling:touch}.nav-links.open li{margin:0}.nav-links.open a{display:block;padding:.85rem .5rem;font-size:1.0625rem;border-bottom:1px solid #f1f5f9}.nav-links.open .btn{margin-top:.85rem;border-bottom:none;justify-content:center}.hero{padding:4rem 1rem 3rem}.section{padding:3rem 1rem}}

/* ═══ Paginas de curso ═══ */
.curso-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:3rem;max-width:1200px;margin:0 auto;padding:2rem 2rem 4rem;align-items:start}
.curso-sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:1.25rem}
.curso-temario-btn{display:none;align-items:center;gap:.6rem;width:100%;padding:.85rem 1rem;background:#fff;border:1px solid #e2e8f0;border-radius:.75rem;font:inherit;font-weight:600;font-size:.95rem;color:var(--text-dark);cursor:pointer;box-shadow:0 1px 2px rgba(15,20,25,.06)}
.curso-temario-btn:hover{border-color:var(--primary)}
.temario-titulo{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-light);padding:0 .25rem .75rem}
.temario-lista{list-style:none;display:flex;flex-direction:column;gap:.25rem}
.temario-lista a{display:flex;align-items:flex-start;gap:.7rem;padding:.7rem .75rem;border-radius:.6rem;color:var(--text-dark);transition:.18s;border-left:3px solid transparent}
.temario-lista a:hover{background:var(--bg-light)}
.temario-lista .mod-num{flex:0 0 1.6rem;height:1.6rem;display:grid;place-items:center;border-radius:50%;background:#eef2f6;color:var(--text-light);font-size:.8rem;font-weight:700}
.temario-lista .mod-txt{display:flex;flex-direction:column;gap:.1rem;line-height:1.3;min-width:0}
.temario-lista .mod-txt strong{font-weight:600;font-size:.9rem}
.temario-lista .mod-txt em{font-style:normal;font-size:.78rem;color:var(--text-light)}
.temario-lista .mod-check{margin-left:auto;margin-top:.2rem;color:var(--success);opacity:0;flex:0 0 auto}
.temario-lista li.activo a{background:rgba(46,125,50,.08);border-left-color:var(--primary)}
.temario-lista li.activo .mod-num{background:var(--primary);color:#fff}
.temario-lista li.hecho .mod-num{background:var(--success);color:#fff}
.temario-lista li.hecho .mod-check{opacity:1}
.temario-lista li.hecho .mod-txt strong{color:var(--text-light)}
.curso-progreso{background:#fff;border:1px solid #e2e8f0;border-radius:.75rem;padding:1rem}
.prog-cabecera{display:flex;justify-content:space-between;align-items:baseline;font-size:.85rem;color:var(--text-light);margin-bottom:.5rem}
.prog-cabecera strong{color:var(--primary);font-size:1.05rem}
.prog-barra{height:8px;background:#eef2f6;border-radius:99px;overflow:hidden}
.prog-barra span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--success));border-radius:99px;transition:width .4s ease}
.prog-nota{font-size:.75rem;color:var(--text-light);margin-top:.6rem;line-height:1.45}
.mod-progreso-badge{margin-left:auto;background:var(--bg-light);color:var(--primary);font-size:.75rem;font-weight:700;padding:.15rem .5rem;border-radius:99px}
.curso-main{max-width:680px;min-width:0}
.migas{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-light);margin-bottom:1.25rem;flex-wrap:wrap}
.migas a{color:var(--text-light);font-weight:500;display:inline-flex;align-items:center;min-height:44px}
.migas a:hover{color:var(--primary)}
.migas i{font-size:.7rem}
.mod-header{margin-bottom:2rem}
.mod-header h1{font-size:clamp(1.75rem,4vw,2.5rem);line-height:1.2;margin-bottom:.75rem}
.mod-resumen{color:var(--text-light);font-size:1.0625rem;max-width:640px}
.mod-meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.25rem}
.mod-meta span{display:inline-flex;align-items:center;gap:.4rem;background:#fff;border:1px solid #e2e8f0;border-radius:99px;padding:.35rem .8rem;font-size:.8rem;color:var(--text-light);font-weight:500}
.mod-meta i{color:var(--primary)}
.mod-objetivos{background:rgba(46,125,50,.06);border-left:4px solid var(--primary);border-radius:.6rem;padding:1.25rem 1.5rem;margin-bottom:2.5rem}
.mod-objetivos h2{display:flex;align-items:center;gap:.5rem;font-size:1rem;font-weight:700;margin-bottom:.85rem}
.mod-objetivos ul{list-style:none;display:flex;flex-direction:column;gap:.5rem}
.mod-objetivos li{display:flex;gap:.6rem;font-size:.95rem;line-height:1.5}
.mod-objetivos .check{flex:0 0 auto;margin-top:.25rem}
.leccion{margin-bottom:3rem}
.leccion h2{display:flex;flex-direction:column;gap:.35rem;font-size:1.5rem;line-height:1.3;margin-bottom:1.25rem;padding-bottom:.75rem;border-bottom:2px solid #eef2f6}
.lec-num{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--primary)}
.leccion h3{font-size:1.15rem;font-weight:700;margin:1.75rem 0 .75rem}
.leccion p{margin-bottom:1rem;color:#334155}
.leccion ul,.leccion ol{margin:0 0 1.25rem;padding-left:1.35rem;display:flex;flex-direction:column;gap:.5rem}
.leccion li{line-height:1.6;color:#334155}
.leccion ul li::marker{color:var(--primary)}
.tabla-wrap{overflow-x:auto;margin:0 0 1rem;border:1px solid #e2e8f0;border-radius:.6rem;-webkit-overflow-scrolling:touch}
.tabla{width:100%;border-collapse:collapse;font-size:.9rem;min-width:480px}
.tabla th{background:var(--bg-light);font-weight:600;text-align:left;padding:.7rem .9rem;border-bottom:1px solid #e2e8f0;white-space:nowrap}
.tabla td{padding:.7rem .9rem;border-bottom:1px solid #f1f5f9;line-height:1.5;vertical-align:top}
.tabla tbody tr:last-child td{border-bottom:none}
.tabla tbody tr:nth-child(even){background:#fcfdfe}
.tabla-nota{font-size:.82rem;color:var(--text-light);margin-bottom:1.25rem}
.callout{border-radius:.6rem;padding:1rem 1.25rem;margin:1.5rem 0;border-left:4px solid}
.callout-head{display:flex;align-items:center;gap:.5rem;margin-bottom:.4rem;font-size:.95rem}
.callout p{margin:0;font-size:.93rem;line-height:1.6}
.callout-key{background:rgba(46,125,50,.07);border-color:var(--primary)}.callout-key .callout-head{color:var(--primary-dark)}
.callout-warn{background:rgba(245,158,11,.09);border-color:#f59e0b}.callout-warn .callout-head{color:#b45309}
.callout-tip{background:rgba(56,189,248,.08);border-color:#38bdf8}.callout-tip .callout-head{color:#0369a1}
.callout-error{background:rgba(220,38,38,.07);border-color:#dc2626}.callout-error .callout-head{color:#b91c1c}
.ejemplo{background:#fff;border:1px solid #e2e8f0;border-radius:.75rem;padding:1.25rem 1.5rem;margin:1.5rem 0}
.ejemplo-head{display:flex;align-items:center;gap:.5rem;font-size:.95rem;margin-bottom:.85rem;color:var(--text-dark)}
.ejemplo-head i{color:var(--primary)}
.ejemplo-pasos{margin:0;padding-left:1.35rem;display:flex;flex-direction:column;gap:.55rem}
.ejemplo-pasos li{line-height:1.6;font-size:.93rem;color:#334155}
.ejemplo-resultado{margin-top:1rem;background:rgba(46,125,50,.08);border-radius:.5rem;padding:.8rem 1rem;font-weight:600;color:var(--primary-dark);font-size:.95rem;display:flex;flex-direction:column;gap:.2rem}
.ejemplo-resultado span{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;opacity:.75;font-weight:700}
.ejemplo-nota{font-size:.82rem;color:var(--text-light);margin-top:.75rem}
.formula{background:#0f1419;color:#e2e8f0;border-radius:.5rem;padding:1rem 1.25rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem;margin:1.25rem 0;overflow-x:auto;white-space:pre-wrap;line-height:1.7}
.formula-nota{font-size:.82rem;color:var(--text-light);margin:-.75rem 0 1.25rem}
.checklist{background:var(--bg-light);border-radius:.6rem;padding:1.1rem 1.25rem;margin:1.5rem 0;display:flex;flex-direction:column;gap:.6rem}
.check{display:flex;gap:.7rem;align-items:flex-start;font-size:.93rem;line-height:1.5;cursor:pointer;color:#334155}
.check input{width:18px;height:18px;margin-top:.15rem;flex:0 0 auto;accent-color:var(--primary);cursor:pointer}
.download-box{background:rgba(46,125,50,.06);border:1px dashed var(--primary);border-radius:.75rem;padding:1.25rem;text-align:center;margin:1.75rem 0}
.download-nota{font-size:.82rem;color:var(--text-light);margin-top:.6rem}
.mod-completar{margin-top:3rem;padding-top:2rem;border-top:2px solid #eef2f6;text-align:center}
.mod-completar p{margin-bottom:1rem;color:var(--text-light)}
.btn-completar.done{background:var(--success)}
.btn-completar{min-height:44px}
.btn-reiniciar{display:inline-flex;align-items:center;gap:.4rem;margin-left:.75rem;background:none;border:none;color:var(--text-light);font-size:.85rem;cursor:pointer;text-decoration:underline;padding:.5rem;min-height:44px}
.mod-nav{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:2rem}
.mod-nav-btn{display:flex;align-items:center;gap:.75rem;padding:1rem;background:#fff;border:1px solid #e2e8f0;border-radius:.75rem;transition:.18s;min-width:0}
.mod-nav-btn:hover{border-color:var(--primary);box-shadow:0 4px 12px rgba(15,20,25,.07)}
.mod-nav-btn span{display:flex;flex-direction:column;min-width:0;line-height:1.3}
.mod-nav-btn small{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-light);font-weight:700}
.mod-nav-btn{font-weight:600;font-size:.88rem}
.mod-nav-btn.next{justify-content:flex-end;text-align:right}
.mod-nav-btn i{color:var(--primary);font-size:1.1rem;flex:0 0 auto}
.curso-indice .mod-lista{display:flex;flex-direction:column;gap:1rem;margin-bottom:2.5rem}
.mod-ficha{display:flex;gap:1.1rem;align-items:flex-start;background:#fff;border:1px solid #e2e8f0;border-radius:.75rem;padding:1.25rem;transition:.18s}
.mod-ficha:hover{border-color:var(--primary);box-shadow:0 6px 18px rgba(15,20,25,.07)}
.mod-ficha .mod-num{flex:0 0 2.4rem;height:2.4rem;display:grid;place-items:center;border-radius:.75rem;background:rgba(46,125,50,.1);color:var(--primary);font-weight:700;font-size:.95rem}
.mod-ficha .mod-cuerpo{flex:1;min-width:0}
.mod-ficha h3{font-size:1.05rem;margin-bottom:.3rem}
.mod-ficha p{color:var(--text-light);font-size:.9rem;margin-bottom:.5rem}
.mod-ficha .mod-mini{display:flex;flex-wrap:wrap;gap:.35rem}
.mod-ficha .mod-mini span{background:var(--bg-light);border-radius:99px;padding:.2rem .6rem;font-size:.72rem;color:var(--text-light)}
.mod-ficha .mod-cta{flex:0 0 auto;align-self:center}
@media(max-width:900px){.curso-layout{grid-template-columns:1fr;gap:1.25rem;padding:1.25rem 1rem 3rem}.curso-sidebar{position:static;top:auto}.curso-temario-btn{display:flex}.curso-temario{display:none}.curso-sidebar.is-open .curso-temario{display:block}.curso-main{max-width:100%}.mod-nav{grid-template-columns:1fr}.mod-nav-btn.next{justify-content:flex-start;text-align:left}.btn-reiniciar{display:block;margin:.75rem auto 0}.btn-completar{min-height:48px;padding:.85rem 1.25rem}.temario-lista a{min-height:44px}.mod-nav-btn{min-height:56px}}
@media(max-width:768px){.leccion h2{font-size:1.3rem}.mod-nav-btn{font-size:.85rem}.mod-ficha{flex-wrap:wrap}.mod-ficha .mod-cta{width:100%}.mod-ficha .mod-cta .btn{width:100%;justify-content:center}}