:root {
  --navy: #0f172a; --navy-mid: #1e293b; --navy-light: #334155;
  --blue: #2563eb; --blue-light: #3b82f6; --blue-pale: #eff6ff;
  --red: #991b1b; --red-light: #dc2626;
  --green: #166534; --green-light: #dcfce7; --green-border: #86efac;
  --white: #ffffff; --gray-50: #f8fafc; --gray-100: #f1f5f9;
  --gray-200: #e2e8f0; --gray-300: #cbd5e1; --gray-400: #94a3b8;
  --gray-500: #64748b; --gray-700: #334155; --gray-900: #0f172a;
  --text: #0f172a; --text-muted: #64748b;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);
  --shadow: 0 4px 6px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.06);
  --shadow-md: 0 10px 15px rgba(0,0,0,.1),0 4px 6px rgba(0,0,0,.05);
  --shadow-lg: 0 20px 25px rgba(0,0,0,.1),0 10px 10px rgba(0,0,0,.04);
  --shadow-xl: 0 25px 50px rgba(0,0,0,.18);
  --r: 10px; --r-sm: 6px; --r-lg: 16px; --r-xl: 20px;
  --transition: .18s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--gray-50);color:var(--text);min-height:100vh;display:flex;flex-direction:column;line-height:1.6;font-size:15px}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--gray-100)}
::-webkit-scrollbar-thumb{background:var(--navy-light);border-radius:3px}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ── NAVBAR ── */
.navbar{background:var(--navy);padding:0 28px;display:flex;align-items:center;gap:20px;position:sticky;top:0;z-index:200;min-height:64px;box-shadow:0 2px 16px rgba(0,0,0,.25);border-bottom:2px solid rgba(255,255,255,.06)}
.nav-brand{display:flex;align-items:center;flex-shrink:0}
.nav-logo{height:38px;object-fit:contain}
.nav-menu{display:flex;align-items:center;flex:1;gap:8px}
.nav-links{list-style:none;display:flex;align-items:center;gap:2px;flex:1}
.nav-links li{position:relative}
.nav-links a{display:flex;align-items:center;gap:7px;color:#94a3b8;font-size:13.5px;font-weight:500;padding:8px 13px;border-radius:var(--r-sm);transition:color var(--transition),background var(--transition);white-space:nowrap}
.nav-links a svg{width:15px;height:15px;flex-shrink:0}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{font-weight:600}
.chevron{width:13px!important;height:13px!important;transition:transform var(--transition)}
.dropdown.open .chevron{transform:rotate(180deg)}
.dropdown-menu{display:none;position:absolute;top:calc(100% + 10px);left:0;background:#1e293b;border-radius:var(--r);min-width:200px;box-shadow:0 8px 30px rgba(0,0,0,.35);overflow:hidden;z-index:300;border:1px solid rgba(255,255,255,.07)}
.dropdown.open .dropdown-menu{display:block}
.dropdown-menu li{list-style:none}
.dropdown-menu a{display:flex;align-items:center;gap:10px;color:#cbd5e1;font-size:13px;padding:11px 16px;border-radius:0;border-bottom:1px solid rgba(255,255,255,.04);transition:background var(--transition),color var(--transition)}
.dropdown-menu li:last-child a{border-bottom:none}
.dropdown-menu a svg{width:15px;height:15px;opacity:.7}
.dropdown-menu a:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-user{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0}
.nav-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#7c3aed);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.nav-username{color:#94a3b8;font-size:13px;font-weight:500;white-space:nowrap}
.btn-logout{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.07);color:#cbd5e1;border:1px solid rgba(255,255,255,.1);border-radius:var(--r-sm);padding:6px 14px;font-size:13px;font-weight:500;cursor:pointer;transition:background var(--transition),color var(--transition)}
.btn-logout svg{width:14px;height:14px}
.btn-logout:hover{background:rgba(255,255,255,.14);color:#fff}
.nav-hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;margin-left:auto}
.nav-hamburger span{display:block;width:22px;height:2px;background:#94a3b8;border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── LAYOUT ── */
.main-content{flex:1;max-width:960px;width:100%;margin:0 auto;padding:36px 20px}
.footer{background:var(--navy);color:#475569;text-align:center;padding:16px 20px;font-size:12.5px;border-top:1px solid rgba(255,255,255,.05)}

/* ── LOGIN ── */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#0f172a 100%);padding:24px;position:relative;overflow:hidden}
.login-page::before{content:'';position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.15) 0%,transparent 70%);top:-100px;right:-100px;pointer-events:none}
.login-page::after{content:'';position:absolute;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(124,58,237,.1) 0%,transparent 70%);bottom:-50px;left:-50px;pointer-events:none}
.login-card{background:#fff;border-radius:var(--r-xl);padding:48px 44px;width:100%;max-width:420px;box-shadow:var(--shadow-xl);position:relative;z-index:1}
.login-logo{text-align:center;margin-bottom:28px}
.login-logo img{max-height:80px;max-width:200px;object-fit:contain;margin:0 auto}
.login-title{font-size:22px;font-weight:800;text-align:center;color:var(--navy);margin-bottom:6px;letter-spacing:-.4px}
.login-subtitle{font-size:13px;text-align:center;color:var(--text-muted);margin-bottom:32px}
.login-divider{height:1px;background:var(--gray-200);margin:24px 0}

/* ── PAGE HEADER ── */
.page-header{margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--gray-200)}
.page-header-row{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
.page-header h1{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:-.4px;display:flex;align-items:center;gap:10px}
.page-header p{color:var(--text-muted);margin-top:5px;font-size:13.5px}

/* ── CARDS ── */
.card{background:#fff;border-radius:var(--r-lg);padding:28px 32px;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);margin-bottom:24px}
.card-title{font-size:15px;font-weight:700;color:var(--navy);margin-bottom:20px;display:flex;align-items:center;gap:8px}
.card-title svg{width:18px;height:18px;color:var(--blue)}

/* ── HERO ── */
.hero{text-align:center;padding:48px 20px 36px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--blue-pale);color:var(--blue);font-size:12px;font-weight:600;padding:5px 14px;border-radius:20px;margin-bottom:16px;border:1px solid rgba(37,99,235,.15)}
.hero h1{font-size:32px;font-weight:800;color:var(--navy);margin-bottom:10px;letter-spacing:-.6px}
.hero p{color:var(--text-muted);font-size:15px;max-width:500px;margin:0 auto}

/* ── MODULES GRID ── */
.modules-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;margin-top:8px}
.module-card{background:#fff;border-radius:var(--r-lg);padding:28px 22px;text-align:center;color:var(--text);box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);border:1px solid var(--gray-200);position:relative;overflow:hidden}
.module-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),#7c3aed);opacity:0;transition:opacity var(--transition)}
.module-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--gray-300)}
.module-card:hover::before{opacity:1}
.module-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:24px}
.module-icon.blue{background:var(--blue-pale)}
.module-icon.purple{background:#f5f3ff}
.module-icon.amber{background:#fffbeb}
.module-icon.green{background:#f0fdf4}
.module-card h2{font-size:15px;font-weight:700;margin-bottom:7px;color:var(--navy)}
.module-card p{font-size:12.5px;color:var(--text-muted);line-height:1.55}

/* ── FORMS ── */
.form-group{display:flex;flex-direction:column;margin-bottom:18px}
.form-group label{font-weight:600;font-size:13px;margin-bottom:7px;color:var(--gray-700);letter-spacing:.1px}
.label-hint{font-weight:400;color:var(--gray-400);font-size:12px}
.form-group input,.form-group textarea,.form-group select{border:1.5px solid var(--gray-200);border-radius:var(--r-sm);padding:10px 14px;font-family:inherit;font-size:14px;color:var(--text);background:var(--gray-50);transition:border-color var(--transition),background var(--transition),box-shadow var(--transition)}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--gray-400)}
.form-group select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.checkbox-label{display:flex;align-items:center;gap:10px;font-weight:500;cursor:pointer;font-size:14px}
.checkbox-label input[type=checkbox]{width:17px;height:17px;cursor:pointer;accent-color:var(--blue)}
.form-group input[type=file]{padding:8px 12px;cursor:pointer;background:#fff}

/* ── EMPRESA SELECTOR ── */
.empresa-selector .form-group label{font-size:14px;font-weight:700}
.empresa-selector select{font-size:14px;font-weight:600;border:2px solid var(--navy);border-radius:var(--r-sm);padding:12px 40px 12px 14px;background:#fff}
.empresa-selector select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.empresa-badge{display:inline-flex;align-items:center;gap:7px;background:var(--navy);color:#fff;font-size:12.5px;font-weight:600;padding:6px 16px;border-radius:20px;margin-bottom:20px}
.empresa-badge svg{width:14px;height:14px;opacity:.8}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--r-sm);padding:11px 24px;font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none;white-space:nowrap}
.btn svg{width:16px;height:16px;flex-shrink:0}
.btn-primary{background:var(--navy);color:#fff;width:100%}
.btn-primary:hover{background:#1e293b;box-shadow:0 4px 12px rgba(15,23,42,.3)}
.btn-primary:disabled{background:var(--gray-400);cursor:not-allowed;box-shadow:none}
.btn-secondary{background:var(--gray-100);color:var(--text);border:1.5px solid var(--gray-200);width:100%}
.btn-secondary:hover{background:var(--gray-200)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-light);box-shadow:0 4px 12px rgba(37,99,235,.3)}
.btn-red{background:#7f1d1d;color:#fff}
.btn-red:hover{background:var(--red-light);box-shadow:0 4px 12px rgba(153,27,27,.3)}
.btn-red:disabled{background:var(--gray-400);cursor:not-allowed}
.btn-auto{width:auto}
.btn-sm{padding:5px 13px;font-size:12px;border-radius:var(--r-sm)}
.btn-edit{background:#e0f2fe;color:#0369a1}
.btn-edit:hover{background:#bae6fd}
.btn-delete{background:#fee2e2;color:var(--red-light)}
.btn-delete:hover{background:#fecaca}
.btn-group{display:flex;gap:12px;margin-top:8px}
.btn-group .btn{flex:1}

/* ── ALERTS ── */
.alert{padding:13px 16px;border-radius:var(--r-sm);margin-bottom:20px;font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:10px;position:relative}
.alert-error{background:#fee2e2;color:var(--red-light);border:1px solid #fca5a5}
.alert-success{background:var(--green-light);color:var(--green);border:1px solid var(--green-border)}
.alert-warning{background:#fef9c3;color:#854d0e;border:1px solid #fde047}
.alert-info{background:var(--blue-pale);color:#1d4ed8;border:1px solid #bfdbfe}
.alert-close{margin-left:auto;background:none;border:none;cursor:pointer;font-size:16px;opacity:.6;padding:0 4px;line-height:1;color:inherit}
.alert-close:hover{opacity:1}

/* ── SPINNER ── */
.spinner-wrap{display:flex;align-items:center;gap:10px;color:var(--navy);font-size:13.5px;font-weight:600;margin:14px 0}
.spinner{width:20px;height:20px;border:2.5px solid var(--gray-200);border-top-color:var(--blue);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── PREVIEW SECTION ── */
.preview-section{background:#fff;border-radius:var(--r-lg);padding:28px 32px;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);border-top:3px solid var(--blue);margin-bottom:24px}
.preview-title{font-size:18px;font-weight:800;color:var(--navy);margin-bottom:5px;letter-spacing:-.3px}
.preview-subtitle{font-size:13px;color:var(--text-muted);margin-bottom:22px}
.preview-field{border:1.5px solid var(--gray-200);border-radius:var(--r-sm);padding:10px 14px;font-family:inherit;font-size:14px;color:var(--text);background:var(--gray-50);width:100%;transition:border-color var(--transition),background var(--transition),box-shadow var(--transition);resize:vertical}
.preview-field:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.1)}

/* ── CAMBIOS SECTION ── */
.cambios-section{background:var(--gray-50);border:1.5px solid var(--gray-200);border-radius:var(--r);padding:18px 20px;margin:20px 0}
.cambios-label{font-weight:700;font-size:13.5px;color:var(--navy);display:block;margin-bottom:10px}
.cambios-row{display:flex;gap:10px;align-items:center}
.cambios-input{flex:1;border:1.5px solid var(--gray-200);border-radius:var(--r-sm);padding:10px 14px;font-family:inherit;font-size:14px;color:var(--text);background:#fff;transition:border-color var(--transition),box-shadow var(--transition)}
.cambios-input:focus{outline:none;border-color:#7f1d1d;box-shadow:0 0 0 3px rgba(127,29,29,.08)}
.cambios-input::placeholder{color:var(--gray-400)}

/* ── SUCCESS MSG ── */
.msg-listo{display:none;margin-top:18px;background:var(--green-light);border:1.5px solid var(--green-border);border-radius:var(--r);padding:16px 20px;align-items:center;gap:14px}
.msg-listo.show{display:flex}
.msg-listo-icon{font-size:28px;flex-shrink:0}
.msg-listo p{margin:0;color:var(--green)}
.msg-listo p:first-child{font-weight:700;font-size:14.5px}
.msg-listo p:last-child{font-size:12.5px;margin-top:3px}

/* ── TABLE ── */
.table-card{background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid var(--gray-200)}
.table-empty{padding:48px 20px;text-align:center;color:var(--text-muted)}
.table-empty-icon{font-size:36px;margin-bottom:12px}
.table-empty p{font-size:14px;font-weight:600;margin-bottom:4px;color:var(--gray-700)}
.table-empty small{font-size:12.5px}
.tabla{width:100%;border-collapse:collapse;font-size:13.5px}
.tabla thead{background:var(--navy);color:#fff}
.tabla th{padding:13px 16px;text-align:left;font-size:12px;font-weight:600;letter-spacing:.5px;text-transform:uppercase}
.tabla td{padding:12px 16px;border-bottom:1px solid var(--gray-100);vertical-align:middle;color:var(--text)}
.tabla tbody tr:hover{background:var(--gray-50)}
.tabla tbody tr:last-child td{border-bottom:none}
.tabla code{background:var(--gray-100);padding:2px 8px;border-radius:4px;font-size:12.5px;color:var(--navy);font-family:monospace}
.acciones{display:flex;gap:7px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:11.5px;font-weight:600}
.badge-admin{background:#fef3c7;color:#92400e}
.badge-user{background:var(--blue-pale);color:#1d4ed8}
.badge-active{background:var(--green-light);color:var(--green)}
.badge-inactive{background:#fee2e2;color:var(--red-light)}

/* ── INFO BOX ── */
.info-box{background:var(--gray-50);border:1.5px solid var(--gray-200);border-radius:var(--r-sm);padding:14px 16px;font-size:13.5px}
.info-box code{background:var(--gray-200);padding:2px 8px;border-radius:4px;font-size:12.5px;color:var(--navy);font-family:monospace}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .navbar{padding:0 16px;flex-wrap:wrap;min-height:auto;padding-top:10px;padding-bottom:10px}
  .nav-hamburger{display:flex}
  .nav-menu{display:none;flex-direction:column;align-items:flex-start;width:100%;padding-bottom:12px;gap:0}
  .nav-menu.open{display:flex}
  .nav-links{flex-direction:column;width:100%;gap:0}
  .nav-links>li{width:100%}
  .nav-links a{width:100%;padding:10px 13px}
  /* Dropdown móvil: estático, expandido inline en vez de flotante */
  .dropdown-menu{position:static;box-shadow:none;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.06);background:rgba(255,255,255,.04);margin:2px 0 4px 16px;min-width:unset;overflow:hidden}
  .dropdown-menu a{padding:9px 14px;font-size:13px;border-bottom:1px solid rgba(255,255,255,.04)}
  .nav-user{width:100%;padding-top:12px;margin-top:6px;border-top:1px solid rgba(255,255,255,.08);justify-content:space-between}
  .main-content{padding:24px 16px}
  .hero h1{font-size:26px}
  .modules-grid{grid-template-columns:1fr}
  .card{padding:22px 18px}
  .form-row{grid-template-columns:1fr}
  .cambios-row{flex-direction:column}
  .cambios-input{width:100%}
  .login-card{padding:36px 24px}
  .preview-section{padding:22px 18px}
  .page-header-row{flex-direction:column}
  .tabla{font-size:12.5px}
  .tabla th,.tabla td{padding:10px 12px}
}
@media(max-width:480px){
  .btn-group{flex-direction:column}
  .hero h1{font-size:22px}
}