*{box-sizing:border-box}body{font-family:system-ui,-apple-system,sans-serif;margin:0;background:#f4f5f7;color:#1e293b}a{color:inherit}
.login-bg{background:linear-gradient(135deg,#1e3a8a,#4c1d95);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{background:#fff;padding:40px;border-radius:16px;width:400px;max-width:100%;box-shadow:0 25px 60px rgba(0,0,0,.35);text-align:center}
.login-card h1{margin:0 0 24px;font-size:22px}
.login-card input,.login-card button{width:100%;padding:13px 14px;margin:8px 0;border-radius:9px;border:1px solid #d1d5db;font-size:14px;font-family:inherit}
.login-card button{background:linear-gradient(135deg,#3b82f6,#8b5cf6);color:#fff;border:none;font-weight:600;cursor:pointer;margin-top:14px}
.link-alt{text-align:center;margin-top:18px;font-size:13px}.link-alt a{color:#3b82f6;text-decoration:none}
.topbar{background:#1e293b;color:#fff;padding:14px 30px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.topbar a{color:#cbd5e1;text-decoration:none;margin-left:16px;font-size:14px}.topbar-brand{font-weight:600;display:flex;align-items:center}
body.admin-body{display:flex;min-height:100vh;margin:0;background:#f4f5f7}
.sidebar{width:250px;background:#0f172a;color:#e2e8f0;display:flex;flex-direction:column;flex-shrink:0;position:sticky;top:0;height:100vh}
.sidebar-logo{padding:20px;font-size:15px;font-weight:700;display:flex;align-items:center;gap:10px;border-bottom:1px solid #1e293b;color:#fff}
.logo-ico{font-size:22px}.sidebar-nav{flex:1;padding:14px 8px;display:flex;flex-direction:column;gap:2px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;color:#cbd5e1;text-decoration:none;border-radius:9px;font-size:14px;transition:.15s}
.nav-item:hover{background:#1e293b;color:#fff}.nav-item.active{background:linear-gradient(135deg,var(--primary,#3b82f6),var(--secondary,#8b5cf6));color:#fff}
.nav-ico{font-size:17px;width:22px;text-align:center}.nav-danger{color:#fca5a5;margin-top:auto}
.sidebar-user{padding:14px 16px;border-top:1px solid #1e293b;display:flex;align-items:center;gap:12px}
.user-avatar{width:38px;height:38px;background:linear-gradient(135deg,var(--primary,#3b82f6),var(--secondary,#8b5cf6));border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}
.user-name{font-size:13px;font-weight:600;color:#fff}.user-rol{font-size:11px;color:#94a3b8}
.main-content{flex:1;min-width:0}.page-head{display:flex;justify-content:space-between;align-items:center;padding:22px 30px;background:#fff;border-bottom:1px solid #e2e8f0}
.page-head h1{margin:0;font-size:20px}.container{max-width:1200px;margin:30px;padding:0}h2{margin:0 0 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:22px}.grid-publico{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.card-libro{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:.25s;text-decoration:none;color:inherit;display:block}
.card-libro:hover{transform:translateY(-5px);box-shadow:0 14px 35px rgba(0,0,0,.13)}
.card-libro img{width:100%;height:300px;object-fit:cover;display:block}
.card-libro .sin-portada{width:100%;height:300px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e0e7ff,#c7d2fe);font-size:64px}
.card-libro .info{padding:14px}.card-libro h3{margin:0 0 4px;font-size:15px}.card-libro p{margin:0 0 12px;color:#64748b;font-size:13px}
.card-clickable{cursor:pointer}.btn{display:inline-block;padding:9px 16px;border-radius:8px;background:var(--primary,#3b82f6);color:#fff;text-decoration:none;font-size:13px;font-weight:500}
.btn-sm{display:inline-block;padding:5px 10px;border-radius:6px;background:var(--primary,#3b82f6);color:#fff;text-decoration:none;font-size:12px;margin-right:4px}
.btn-danger{background:#dc2626}.btn-cancel{display:inline-block;padding:12px 20px;margin-left:10px;color:#64748b;text-decoration:none;font-size:14px}
.form-card{background:#fff;padding:32px;border-radius:14px;max-width:680px;box-shadow:0 4px 20px rgba(0,0,0,.06)}.form-card-wide{max-width:820px}
.form-card label{display:block;margin:16px 0 6px;font-size:13px;font-weight:500;color:#475569}
.form-card input,.form-card textarea,.form-card select{width:100%;padding:11px 14px;border:1px solid #d1d5db;border-radius:9px;font-size:14px;font-family:inherit}
.form-card button{background:linear-gradient(135deg,var(--primary,#3b82f6),var(--secondary,#8b5cf6));color:#fff;border:none;padding:13px 26px;border-radius:9px;font-weight:600;font-size:14px;cursor:pointer;margin-top:18px}
.hint{font-size:13px;color:#64748b;margin:8px 0 0}label.check{display:flex!important;align-items:center;gap:8px;font-weight:500}label.check input{width:auto!important}
.tabla{width:100%;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);border-collapse:collapse;font-size:14px}
.tabla th,.tabla td{padding:12px 14px;text-align:left;border-bottom:1px solid #f1f5f9}
.tabla th{background:#f8fafc;font-weight:600;color:#475569;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.tabla code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-size:12px}
.badge{display:inline-block;padding:3px 10px;border-radius:12px;background:#f1f5f9;color:#475569;font-size:11px;font-weight:600}
.badge-admin{background:linear-gradient(135deg,var(--primary,#3b82f6),var(--secondary,#8b5cf6));color:#fff}.badge-ok{background:#dcfce7;color:#166534}.badge-off{background:#fee2e2;color:#991b1b}
.perm-grupo{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:16px 20px;margin:14px 0}
.perm-grupo-title{font-size:13px;font-weight:700;color:var(--primary,#3b82f6);text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}
.perm-item{display:flex;padding:8px 0;font-size:14px}
.alert-error{background:#fee2e2;color:#991b1b;padding:12px 16px;border-radius:9px;margin-bottom:16px;font-size:14px;word-break:break-word}
.alert-ok{background:#dcfce7;color:#166534;padding:12px 16px;border-radius:9px;margin-bottom:16px;font-size:14px}
.empty{text-align:center;padding:60px 20px;color:#64748b;background:#fff;border-radius:14px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.empty a{color:var(--primary,#3b82f6)}.titulo-seccion{text-align:center;font-size:28px;margin:20px 0 30px}
.reader-modal{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.75);backdrop-filter:blur(6px);padding:20px;align-items:center;justify-content:center}
.reader-modal.open{display:flex}
.reader-modal-content{width:100%;max-width:1200px;height:90vh;background:#1a0e08;border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.reader-modal-head{background:#0f172a;color:#f5deb3;padding:12px 20px;display:flex;justify-content:space-between;align-items:center;font-family:system-ui}
.reader-close{background:transparent;border:1px solid rgba(245,222,179,.3);color:#f5deb3;padding:6px 14px;border-radius:6px;cursor:pointer;font-size:13px}
#reader-iframe{flex:1;width:100%;background:#1a0e08;border:none}