body{margin:0}code{background:#ffffff14;border-radius:4px;padding:.1rem .35rem;font-family:ui-monospace,Consolas,monospace;font-size:.85em}:root{--color-bg:#0f1115;--color-surface:#171a21;--color-border:#2a2e38;--color-text:#e8eaed;--color-muted:#9aa0ac;--color-primary:#5b8def;--color-primary-dark:#3d6fd6;--color-free:#2f9e5b;--color-paid:#b08a2e;--radius:10px}*{box-sizing:border-box}body{background:var(--color-bg);color:var(--color-text);margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif}.container{max-width:960px;margin:0 auto;padding:2rem 1.25rem 4rem}.muted{color:var(--color-muted)}.small{font-size:.85rem}.page-loading,.page-error{max-width:960px;margin:3rem auto;padding:0 1.25rem}.page-error{color:#e06a6a}.navbar{border-bottom:1px solid var(--color-border);background:var(--color-surface);justify-content:space-between;align-items:center;padding:1rem 1.5rem;display:flex}.navbar-brand{color:var(--color-text);font-size:1.1rem;font-weight:700;text-decoration:none}.navbar-links{align-items:center;gap:1.25rem;display:flex}.navbar-links a{color:var(--color-text);text-decoration:none}.navbar-user{color:var(--color-muted);font-size:.9rem}.btn{border-radius:var(--radius);cursor:pointer;border:1px solid #0000;padding:.55rem 1rem;font-size:.95rem;text-decoration:none;display:inline-block}.btn:disabled{cursor:not-allowed;opacity:.6}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-secondary{border-color:var(--color-border);color:var(--color-text);background:0 0}.btn-ghost{color:var(--color-muted);border-color:var(--color-border);background:0 0}.auth-page{justify-content:center;padding:3rem 1rem;display:flex}.auth-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);width:100%;max-width:380px;padding:2rem}.auth-form{flex-direction:column;gap:.9rem;margin-top:1rem;display:flex}.auth-form label{color:var(--color-muted);flex-direction:column;gap:.35rem;font-size:.9rem;display:flex}.auth-form input{background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text);border-radius:6px;padding:.55rem .7rem;font-size:1rem}.auth-switch{text-align:center;width:100%;margin-top:1rem}.form-error{color:#e06a6a;font-size:.9rem}.form-notice{color:#7fb0e0;font-size:.9rem}.escuela-section{margin-bottom:2.5rem}.ruta-block{margin:1.25rem 0 2rem}.curso-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;margin-top:.75rem;display:grid}.curso-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);flex-direction:column;gap:.5rem;padding:1rem;text-decoration:none;display:flex}.curso-card:hover{border-color:var(--color-primary)}.badge{border-radius:999px;width:fit-content;padding:.2rem .6rem;font-size:.75rem;display:inline-block}.badge-free{color:var(--color-free);background:#2f9e5b2e}.badge-paid{color:var(--color-paid);background:#b08a2e2e}.badge-enrolled{color:var(--color-primary);background:#5b8def2e}.badge-preview{color:var(--color-muted);background:#ffffff14}.back-link{color:var(--color-muted);font-size:.9rem;text-decoration:none}.curso-acceso{flex-wrap:wrap;align-items:center;gap:1rem;margin:1rem 0 2rem;display:flex}.modulo-block{margin-bottom:1.5rem}.leccion-list{border:1px solid var(--color-border);border-radius:var(--radius);margin:0;padding:0;list-style:none;overflow:hidden}.leccion-list li{border-bottom:1px solid var(--color-border)}.leccion-list li:last-child{border-bottom:none}.leccion-link{color:var(--color-text);align-items:center;gap:.6rem;padding:.75rem 1rem;text-decoration:none;display:flex}.leccion-link:hover{background:var(--color-surface)}.leccion-locked{color:var(--color-muted);align-items:center;gap:.6rem;padding:.75rem 1rem;display:flex}.leccion-page{max-width:720px}.leccion-contenido-texto{white-space:pre-wrap;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);margin:1rem 0;padding:1.25rem;line-height:1.6}.video-placeholder{background:var(--color-surface);border:1px dashed var(--color-border);border-radius:var(--radius);margin:1rem 0;padding:1.5rem}.leccion-acciones{margin-top:1.5rem}.dashboard-stats{flex-wrap:wrap;gap:1rem;margin:1.5rem 0 2rem;display:flex}.stat-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);flex-direction:column;min-width:120px;padding:1rem 1.5rem;display:flex}.stat-value{font-size:1.6rem;font-weight:700}.stat-label{color:var(--color-muted);font-size:.85rem}.progress-bar{background:var(--color-bg);border-radius:999px;height:6px;overflow:hidden}.progress-bar-fill{background:var(--color-primary);height:100%}.home-hero{text-align:center;padding-top:4rem}