/* estilos.css */
@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;600;700;800&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

/* Fuente base */
body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: 0;
  background: #eef2ff;
  color: #111827;
}

/* Login Body Centering */
.login-body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

/* Login Container */
.login-container {
  max-width: 400px;
  width: 100%;
  padding: 1rem;
}

/* Card */
.login-card {
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  padding: 2rem;
  text-align: center;
}

/* Header */
.login-icon {
  font-size: 3rem;
  color: #2563eb;
  margin-bottom: 0.5rem;
}
.login-title {
  margin: 0;
}
.login-subtitle {
  font-size: 0.95rem;
  color: #6b7280;
  margin-bottom: 1.5rem;
}

/* Form */
.login-form {
  text-align: left;
}
.login-form label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.input-group {
  display: flex;
  align-items: center;
  background: #f9fafb;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  padding: 0.5rem;
  margin-bottom: 1rem;
}
.input-group i {
  margin-right: 0.5rem;
  color: #9ca3af;
}
.input-group input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 0.95rem;
}

/* Options */
.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.form-options .link {
  color: #2563eb;
  text-decoration: none;
}
.form-options .link:hover {
  text-decoration: underline;
}

/* Button base */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: 0.2s ease-in-out;
  font-weight: bold;
}
.btn-primary {
  background-color: #2563eb;
  color: white;
}
.btn-primary:hover {
  background-color: #1e40af;
}

/* Footer link */
.register-link {
  margin-top: 1rem;
  font-size: 0.85rem;
}
.register-link a {
  color: #2563eb;
  text-decoration: none;
}
.register-link a:hover {
  text-decoration: underline;
}

/* Navbar */
.navbar {
  background: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.navbar-left {
  display: flex;
  align-items: center;
}
.navbar-logo {
  font-size: 1.5rem;
  color: #2563eb;
  margin-right: 0.5rem;
}
.navbar-title {
  font-weight: bold;
  font-size: 1.25rem;
}
.navbar-center .nav-tabs a {
  margin: 0 0.75rem;
  text-decoration: none;
  color: #374151;
  font-weight: 500;
}
.navbar-center .nav-tabs a.active {
  color: #2563eb;
  border-bottom: 2px solid #2563eb;
  padding-bottom: 4px;
}
.navbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.btn-small {
  padding: 0.3rem 0.75rem;
  font-size: 0.85rem;
}

/* Layout */
.main-content {
  padding: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

/* Panels */
.panel {
  flex: 1;
  min-width: 300px;
}
.catalogo {
  flex: 2;
}

/* Cards */
.card {
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  margin-bottom: 1rem;
}
.card h3 {
  margin-bottom: 1rem;
}

/* Inputs */
.card input,
.card select {
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.6rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.95rem;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}
table th, table td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid #e5e7eb;
}
.badge {
  display: inline-block;
  padding: 0.3rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: bold;
}
.badge-success {
  background-color: #d1fae5;
  color: #065f46;
}
.badge-danger {
  background-color: #fee2e2;
  color: #991b1b;
}
.badge-warning {
  background-color: #fef9c3;
  color: #92400e;
}

/* Icon actions */
.action-icon {
  margin-right: 0.5rem;
  cursor: pointer;
  color: #2563eb;
}
.text-danger {
  color: #ef4444;
}
.text-success {
  color: #10b981;
}

/* Reporte tipos */
table td:nth-child(2) {
  font-weight: bold;
  color: #2563eb;
}

/* Success buttons */
.btn-success {
  background-color: #22c55e;
  color: white;
}
.btn-success:hover {
  background-color: #16a34a;
}

/* Layout específico de Libros */
.container {
  width: 90%;
  margin: auto;
}
.libros-layout {
  display: flex;
  gap: 20px;
}
.libros-sidebar {
  flex: 1;
}
.libros-main {
  flex: 3;
}
.card {
  background: #fff;
  padding: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  margin-bottom: 20px;
}
table {
  width: 100%;
  border-collapse: collapse;
}
table th, table td {
  padding: 10px;
  border-bottom: 1px solid #ddd;
}
.badge {
  padding: 5px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: bold;
}
.badge-success {
  background: #d4edda;
  color: #155724;
}
.badge-danger {
  background: #f8d7da;
  color: #721c24;
}
.btn-edit {
  color: #007bff;
  margin-right: 10px;
}
.btn-delete {
  color: #dc3545;
}

/* ======================= */
/* BOTONES PERSONALIZADOS  */
/* ======================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 24px; /* más grandes */
  font-size: 16px;
  font-weight: bold;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
}

/* Botón Buscar */
.btn-buscar {
  background-color: #2563eb; /* azul */
  color: #fff;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}
.btn-buscar:hover {
  background-color: #1e40af;
  transform: translateY(-2px) scale(1.05);
}

/* Botón Agregar Libro */
.btn-agregar {
  background-color: #16a34a; /* verde */
  color: #fff;
  width: 100%;
  box-shadow: 0 4px 10px rgba(22, 163, 74, 0.3);
}
.btn-agregar:hover {
  background-color: #15803d;
  transform: translateY(-2px) scale(1.05);
}


/* ======================= */
/* LAYOUT DE USUARIOS      */
/* ======================= */
.usuarios-layout {
  display: grid;
  grid-template-columns: 1fr 2fr; /* Izquierda: registrar+buscar | Derecha: tabla */
  gap: 20px;
  align-items: start;
}

.usuarios-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.usuarios-main {
  width: 100%;
}

/* Responsive */
@media (max-width: 900px) {
  .usuarios-layout {
    grid-template-columns: 1fr;
  }
}


/* ======================= */
/* FORMULARIOS             */
/* ======================= */
.usuarios-sidebar .card input,
.usuarios-sidebar .card select {
  width: 100%;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 0.95rem;
}

/* ======================= */
/* BOTONES NUEVOS          */
/* ======================= */
.btn-buscar {
  background-color: #2563eb;
  color: #fff;
  font-weight: bold;
  padding: 10px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}
.btn-buscar:hover {
  background-color: #1e40af;
  transform: translateY(-2px);
}

.btn-success {
  background-color: #22c55e;
  color: #fff;
  font-weight: bold;
  width: 100%;
  border: none;
  padding: 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}
.btn-success:hover {
  background-color: #16a34a;
  transform: translateY(-2px);
}

/* ======================= */
/* TABLA DE USUARIOS       */
/* ======================= */
.usuarios-main table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
.usuarios-main th, 
.usuarios-main td {
  padding: 12px;
  border-bottom: 1px solid #e5e7eb;
  text-align: left;
}
.usuarios-main th {
  background: #f9fafb;
  font-weight: bold;
  color: #374151;
}

/* ======================= */
/* ICONOS DE ACCIONES      */
/* ======================= */
.action-icon {
  margin: 0 6px;
  font-size: 1.2rem;
  cursor: pointer;
  transition: transform 0.2s;
}
.action-icon:hover {
  transform: scale(1.2);
}
.text-success { color: #16a34a; }
.text-danger { color: #dc2626; }


/* ==== LOGIN ==== */
body.login-body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: url('https://images.unsplash.com/photo-1507842217343-583bb7270b66') no-repeat center center/cover;
  position: relative;
}

body.login-body::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 0;
}

.login-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 40px 35px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  animation: fadeIn 0.6s ease;
}

.login-header {
  text-align: center;
  margin-bottom: 25px;
}

.login-header h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 0;
}

.login-header p {
  font-size: 15px;
  color: #555;
  margin-top: 6px;
}

.input-group {
  position: relative;
  margin-bottom: 15px;
}

.input-group i {
  position: absolute;
  top: 50%;
  left: 12px;
  transform: translateY(-50%);
  color: #777;
}

.input-group input {
  width: 100%;
  padding: 12px 12px 12px 38px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 15px;
  transition: border-color 0.3s;
}

.input-group input:focus {
  border-color: #3a7bd5;
  outline: none;
}

.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
}

.btn-primary {
  background: #3a7bd5;
  color: #fff;
}

.btn-primary:hover {
  background: #2e62a1;
  transform: translateY(-2px);
}

.alert {
  padding: 14px 18px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.alert.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ================================================================
   Interfaz institucional BiblioWeb - portales de gestión y lector
   ================================================================ */
:root {
  --azul: #087df5;
  --azul-oscuro: #096ad3;
  --verde: #20b34c;
  --rojo: #ed3349;
  --fondo: #f4f7fc;
  --texto: #12213b;
  --borde: #dbe2ec;
}

* { box-sizing: border-box; }
body { background: #eef3ff; color: var(--texto); font-family: Arial, Helvetica, sans-serif; }

/* Cabecera de administración */
.navbar {
  min-height: 72px; padding: 12px 26px; background: #fff;
  box-shadow: 0 2px 10px rgba(25, 52, 93, .08); gap: 22px;
}
.navbar-left { min-width: 360px; }
.navbar-logo {
  display: block; width: 34px; height: 43px; margin-right: 10px; object-fit: contain;
}
.navbar-title { color: #071d3d; font-size: 18px; }
.navbar-center { flex: 1; text-align: center; }
.navbar-center .nav-tabs { display: inline-flex; align-items: center; gap: 4px; }
.navbar-center .nav-tabs a { color: #18233b; margin: 0 9px; padding: 10px 2px 7px; font-size: 14px; }
.navbar-center .nav-tabs a.active { color: #155dff; border-bottom: 2px solid #155dff; }
.navbar-right { gap: 16px; font-size: 14px; line-height: 15px; }
.navbar-right > span { max-width: 105px; }
.navbar-right .btn-small { width: 160px; min-height: 42px; padding: 9px 18px; border-radius: 7px; }

/* Administración */
.main-content { padding: 28px 26px; gap: 18px; align-items: flex-start; }
.usuarios-layout { grid-template-columns: minmax(330px, 32%) minmax(0, 1fr); gap: 18px; width: 100%; }
.usuarios-sidebar { gap: 18px; }
.card { padding: 14px 13px; border-radius: 10px; box-shadow: 0 4px 13px rgba(28, 49, 83, .10); margin-bottom: 0; }
.card h3 { margin: 14px 0 14px; color: #071d3d; font-size: 17px; }
.card input, .card select { height: 36px; margin-bottom: 8px; padding: 7px 11px; border: 1px solid #cbd5e1; border-radius: 6px; background: #fff; font-size: 14px; }
.card label { display: block; margin: 5px 0 0; font-size: 14px; }
.btn, .btn-buscar, .btn-success { min-height: 42px; width: 100%; padding: 9px 16px; border-radius: 7px; font-size: 14px; }
.btn-primary, .btn-buscar { background: var(--azul); }
.btn-success { background: var(--verde); }
.btn-primary:hover, .btn-buscar:hover { background: var(--azul-oscuro); transform: none; }
.btn-success:hover { background: #16943e; transform: none; }
.usuarios-main { padding: 16px 13px; overflow-x: auto; }
.usuarios-main table, .libros-main table { margin-top: 14px; min-width: 720px; }
table th, table td { padding: 11px 11px; border-bottom: 1px solid #dce2ea; font-size: 14px; }
table th { background: #f7f8fa; color: #14233d; font-size: 14px; text-transform: uppercase; }
.badge { padding: 4px 10px; font-size: 11px; line-height: 1; }
.badge-success { background: #d9f3df; color: #08772d; }
.badge-danger { background: #fee0e4; color: #c01d35; }
.badge-warning { background: #fff0bb; color: #875300; }
.action-icon { font-size: 1.15rem; margin: 0 4px; }
.alert { width: 100%; margin: 0 0 14px; }

/* Portal de alumno, profesor y administrativo */
body.portal-user, body.login-body {
  min-height: 100vh; margin: 0; padding: 0; background: #f5f7fc !important;
  position: relative; isolation: isolate; display: flex; justify-content: center; align-items: center;
  font-family: 'Nunito Sans', Arial, sans-serif !important;
}
body.portal-user::before, body.login-body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; opacity: 1 !important;
  background: url('assets/Llanoverde.png') center/520px auto no-repeat;
  opacity: .075 !important;
}
.portal-card, body.portal-user .container, body.portal-user .contenedor {
  width: min(92vw, 825px) !important; margin: 0 auto !important; padding: 26px 27px !important;
  background: rgba(255,255,255,.98) !important; border-radius: 13px !important;
  box-shadow: 0 9px 22px rgba(40, 54, 77, .12) !important;
}
.institution-mark { display: block; width: 62px; height: 72px; margin: 0 auto 12px; object-fit: contain; }
.institution-name { margin: 0; color: #333; font-weight: 700; font-size: 18px; line-height: 1.25; text-align: center; }
.portal-user h1, .portal-user h2 { color: #2f3541 !important; }
.portal-user .btn, .portal-user .btn-volver, .portal-user .btn-agregar { width: auto !important; min-height: 36px; padding: 10px 21px !important; border-radius: 7px !important; box-shadow: 0 4px 10px rgba(0, 123, 255, .2) !important; }
.portal-user .btn-danger { background: var(--rojo) !important; }
.portal-user table th { background: var(--azul) !important; color: #fff !important; }
.portal-user table td { border-bottom: 1px solid #d9dde3 !important; }
.portal-user .badge-success, .portal-user .disponible { background: #23ad48 !important; color: #fff !important; }
.portal-user .badge-warning { background: #ffbd0a !important; color: #292001 !important; }

/* Inicio del portal lector */
body.portal-home .container { max-width: 695px !important; text-align: center; }
body.portal-home h1 { margin: 25px 0 6px; font-family: 'Plus Jakarta Sans', sans-serif; font-size: 30px; }
body.portal-home .rol { margin: 0 0 25px; }

/* Catálogo del lector */
body.portal-catalog { display: block; padding: 0 !important; }
body.portal-catalog .container { width: min(1080px, calc(100vw - 48px)) !important; max-width: none !important; margin: 0 auto !important; min-height: calc(100vh - 70px); padding: 26px !important; background: rgba(255,255,255,.97) !important; box-shadow: 0 9px 24px rgba(40, 54, 77, .10) !important; border-radius: 14px !important; }
body.portal-catalog h2 { margin: 0; }
body.portal-catalog table { margin-top: 0; }
body.portal-catalog .cantidad { font-weight: 700; }

/* Mis préstamos y crear préstamo */
body.portal-loans .contenedor { max-width: 955px !important; }
body.portal-loans .encabezado { margin-bottom: 20px !important; }
body.portal-loans h2 { font-size: 27px !important; }
body.portal-loan-form .contenedor { max-width: 625px !important; }
body.portal-loan-form h2 { text-align: center; margin: 28px 0 25px !important; font-size: 23px !important; }
body.portal-loan-form label { font-size: 14px; }
body.portal-loan-form input, body.portal-loan-form select { margin: 7px 0 20px !important; }
body.portal-loan-form .category-filter { margin: 0 0 16px; padding: 14px; border: 1px solid #dce8f0; border-radius: 10px; background: #f3fbfa; }
body.portal-loan-form .category-filter label { color: #177a70; font-weight: 800; }
body.portal-loan-form .category-filter select { margin-bottom: 0 !important; border-color: #a9d5cf; }
body.portal-loan-form .loan-form > label { color: #2d4059; font-weight: 800; }
body.portal-loan-form .loan-date-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
body.portal-loan-form .loan-date-grid input { width: 100%; }

/* Navegación y experiencia del portal lector */
.portal-topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10; min-height: 70px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 10px clamp(18px, 4vw, 58px); background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(210,220,235,.85); box-shadow: 0 2px 15px rgba(31,55,92,.06);
  backdrop-filter: blur(12px);
}
.portal-brand { display: flex; align-items: center; gap: 10px; color: #15345a; text-decoration: none; font: 800 14px/1.15 'Plus Jakarta Sans', sans-serif; }
.portal-brand img { width: 34px; height: 42px; object-fit: contain; }
.portal-links { display: flex; align-items: center; gap: 8px; }
.portal-links a { color: #4a5b75; text-decoration: none; font-size: 14px; font-weight: 700; padding: 9px 11px; border-radius: 8px; }
.portal-links a:hover, .portal-links a.active { color: #087df5; background: #e9f4ff; }
.portal-links .portal-exit { color: #d52e47; }
.portal-links .portal-exit:hover { background: #fff0f2; }
body.portal-home, body.portal-loans, body.portal-loan-form { padding-top: 70px !important; }
body.portal-catalog { padding-top: 70px !important; }

.welcome-copy { max-width: 510px; margin: 0 auto 22px; color: #687892; font-size: 16px; line-height: 1.55; }
.quick-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 4px auto 16px; }
.quick-action { display: block; padding: 18px 14px; border: 1px solid #e1e9f4; border-radius: 12px; color: #203e62; text-decoration: none; text-align: left; background: linear-gradient(135deg, #f9fcff, #edf6ff); transition: transform .18s ease, box-shadow .18s ease; }
.quick-action:hover { transform: translateY(-3px); box-shadow: 0 10px 18px rgba(24, 110, 203, .13); }
.quick-action i { display: block; margin-bottom: 8px; color: #087df5; font-size: 20px; }
.quick-action strong { display: block; font-family: 'Plus Jakarta Sans', sans-serif; font-size: 14px; }
.quick-action span { display: block; margin-top: 4px; color: #6c7b91; font-size: 12px; line-height: 1.35; }
.portal-note { margin: 10px 0 0; color: #69809d; font-size: 13px; }

body.portal-catalog .container { padding-top: 34px !important; }
body.portal-catalog tr:hover { background: #f4f9ff !important; }
body.portal-catalog .catalog-user-heading { display: flex; align-items: center; justify-content: center; gap: 15px; margin: 0 0 18px; text-align: left; }
body.portal-catalog .catalog-user-heading img { width: 54px; height: 65px; object-fit: contain; }
body.portal-catalog .catalog-user-heading h2 { margin: 0 0 4px; color: #2d3645; font: 800 24px 'Plus Jakarta Sans', sans-serif; }
body.portal-catalog .catalog-user-heading p { margin: 0; color: #687b95; line-height: 1.45; }
body.portal-catalog .catalog-selector { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin: 0 0 16px; padding: 14px 16px; border: 1px solid #dce8f0; border-radius: 11px; background: linear-gradient(110deg, #f4fbfa, #f5f9ff); }
body.portal-catalog .catalog-selector form { flex: 1; max-width: 490px; }
body.portal-catalog .catalog-selector label { display: block; margin: 0 0 6px; color: #277c75; font-size: 13px; font-weight: 800; }
body.portal-catalog .catalog-selector select { width: 100%; height: 39px; padding: 8px 11px; border: 1px solid #bcd4df; border-radius: 7px; color: #29465f; background: #fff; font: 700 14px 'Nunito Sans', sans-serif; cursor: pointer; }
body.portal-catalog .catalog-selector > span { padding: 7px 10px; border-radius: 999px; background: #e2f0fb; color: #28678f; font-size: 12px; font-weight: 800; white-space: nowrap; }
body.portal-catalog .category-chip b { display: grid; place-items: center; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 50%; background: #edf2f7; color: #61748b; font-size: 11px; }
body.portal-catalog .category-chip.active b { background: #1b8f86; color: #fff; }
body.portal-catalog .category-heading { display: flex; align-items: center; justify-content: space-between; margin: 0 0 12px; padding: 13px 15px; border: 1px solid #e0e9f0; border-radius: 10px; background: linear-gradient(100deg, #f3fbfa, #f8fbff); }
body.portal-catalog .category-heading h3 { margin: 2px 0 0; color: #173d61; font: 800 19px 'Plus Jakarta Sans', sans-serif; }
body.portal-catalog .eyebrow { color: #2c847b; font-size: 10px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
body.portal-catalog .results-count { padding: 6px 9px; border-radius: 999px; background: #dfeefb; color: #28678f; font-size: 12px; font-weight: 800; }
body.portal-catalog .catalog-pagination { display: flex; align-items: center; justify-content: center; gap: 15px; margin: 23px 0 0; color: #687b91; font-size: 13px; font-weight: 700; }
body.portal-catalog .catalog-pagination a { padding: 8px 12px; border-radius: 7px; background: #e9f4ff; color: #126ea8; text-decoration: none; }
body.portal-catalog .catalog-pagination a:hover { background: #d9ecfb; }
body.portal-catalog .catalog-results { padding: 18px; border: 1px solid #e0e8f0; border-radius: 13px; background: #fff; box-shadow: 0 6px 18px rgba(26, 58, 91, .07); }
body.portal-catalog .catalog-results table { margin-top: 0; }
body.portal-loans .loan-summary { margin: 0 0 14px; padding: 12px 14px; background: #ebf8ef; border-left: 5px solid #20b34c; border-radius: 7px; color: #16703a; font-size: 14px; font-weight: 700; }
body.portal-loans .loan-summary i { margin-right: 7px; }
body.portal-loans .contenedor { padding-top: 24px !important; }
body.portal-loan-form .form-helper { margin: -14px 0 21px; color: #687892; text-align: center; font-size: 14px; }

@media (max-width: 680px) {
  .portal-topbar { min-height: 62px; padding: 7px 14px; }
  .portal-brand { font-size: 11px; max-width: 165px; }
  .portal-brand img { width: 27px; height: 35px; }
  .portal-links { gap: 0; }
  .portal-links a { padding: 8px 7px; font-size: 0; }
  .portal-links a i { font-size: 16px; }
  body.portal-user, body.login-body { align-items: flex-start; }
  body.portal-home, body.portal-loans, body.portal-loan-form { padding-top: 84px !important; }
  .quick-actions { grid-template-columns: 1fr; }
  .portal-user .contenedor, .portal-user .container { width: calc(100vw - 28px) !important; }
  body.portal-loan-form .loan-date-grid { grid-template-columns: 1fr; gap: 0; }
  body.portal-catalog .container { width: calc(100vw - 24px) !important; padding: 18px !important; }
  body.portal-catalog .catalog-user-heading { align-items: flex-start; }
  body.portal-catalog .catalog-user-heading h2 { font-size: 19px; }
  body.portal-catalog .catalog-user-heading img { width: 42px; height: 53px; }
  body.portal-catalog .catalog-selector { align-items: stretch; flex-direction: column; gap: 10px; }
  body.portal-catalog .category-heading { align-items: flex-start; gap: 10px; }
  body.portal-catalog .catalog-pagination { flex-wrap: wrap; gap: 8px; }
}

/* ================================================================
   Espacio de trabajo administrativo: compacto y orientado a tareas
   ================================================================ */
body:has(.navbar) {
  background: #f4f7fb;
  color: #1c2b42;
  font-family: 'Nunito Sans', Arial, sans-serif;
}
body:has(.navbar) .navbar {
  position: fixed; z-index: 20; top: 0; left: 0; right: 0; height: 68px; min-height: 68px;
  padding: 9px 28px; background: rgba(255,255,255,.96); border-bottom: 1px solid #dfe7f1;
  box-shadow: 0 2px 14px rgba(28, 47, 77, .08);
}
body:has(.navbar) .navbar-left { min-width: 345px; }
body:has(.navbar) .navbar-logo { width: 30px; height: 39px; }
body:has(.navbar) .navbar-title { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 15px; color: #17395e; }
body:has(.navbar) .navbar-center {
  position: fixed; top: 68px; bottom: 0; left: 0; z-index: 19; width: 232px;
  padding: 24px 13px; overflow-y: auto; background: linear-gradient(180deg, #112a46 0%, #173b5d 100%);
  text-align: left; box-shadow: 4px 0 16px rgba(18, 39, 64, .09);
}
body:has(.navbar) .navbar-center .nav-tabs { display: flex !important; flex-direction: column !important; align-items: stretch !important; width: 100%; }
body:has(.navbar) .navbar-center .nav-tabs a { display: block !important; visibility: visible !important; opacity: 1 !important; }
body:has(.navbar) .navbar-center::before {
  content: 'PANEL DE GESTIÓN'; display: block; margin: 0 11px 13px;
  color: #8db7d5; font-size: 10px; font-weight: 800; letter-spacing: .12em;
}
body:has(.navbar) .navbar-center .nav-tabs { display: flex; flex-direction: column; align-items: stretch; gap: 5px; }
body:has(.navbar) .navbar-center .nav-tabs a {
  margin: 0; padding: 11px 13px; border: 0; border-radius: 8px;
  color: #d9e9f5; font-size: 14px; font-weight: 700;
}
body:has(.navbar) .navbar-center .nav-tabs a::before { display: inline-block; width: 22px; color: #7ec6bc; font-family: 'Font Awesome 6 Free'; font-weight: 900; }
body:has(.navbar) .navbar-center .nav-tabs a[href="libros.php"]::before { content: '\f02d'; }
body:has(.navbar) .navbar-center .nav-tabs a[href="prestamos.php"]::before { content: '\f49e'; }
body:has(.navbar) .navbar-center .nav-tabs a[href="usuarios.php"]::before { content: '\f0c0'; }
body:has(.navbar) .navbar-center .nav-tabs a[href="reportes.php"]::before { content: '\f201'; }
body:has(.navbar) .navbar-center .nav-tabs a:hover { color: #fff; background: rgba(255,255,255,.09); }
body:has(.navbar) .navbar-center .nav-tabs a.active { color: #fff; background: #287c83; border: 0; box-shadow: 0 7px 15px rgba(0,0,0,.16); }
body:has(.navbar) .navbar-center .nav-tabs a.active::before { color: #d5f8df; }
body:has(.navbar) .navbar-right { gap: 13px; color: #48627d; font-size: 12px; }
body:has(.navbar) .navbar-right .btn-small { width: 106px; min-height: 36px; padding: 8px 12px; background: #e95d66; box-shadow: none; }
body:has(.navbar) .navbar-right .btn-small:hover { background: #d94b56; }
body:has(.navbar) .navbar + .main-content {
  min-height: 100vh; margin-left: 232px; padding: 94px 28px 30px; gap: 16px;
  display: grid; align-content: start;
  background-color: #f4f7fb; background-image: url('assets/Llanoverde.png');
  background-repeat: no-repeat; background-position: center 67%; background-size: min(34vw, 440px);
  background-attachment: fixed; background-blend-mode: luminosity; position: relative;
}
body:has(.navbar) .navbar + .main-content:not(.usuarios-layout) { grid-template-columns: minmax(0, 1fr); }
body:has(.navbar) .navbar + .main-content::before {
  content: ''; position: fixed; z-index: 0; top: 68px; left: 232px; right: 0; bottom: 0;
  background: rgba(244,247,251,.88); pointer-events: none;
}
body:has(.navbar) .navbar + .main-content > * { position: relative; z-index: 1; }
body:has(.navbar) .workspace-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; width: 100%; margin: 0 0 3px; }
body:has(.navbar) .usuarios-layout > .workspace-heading { grid-column: 1 / -1; }
body:has(.navbar) .workspace-heading h1 { margin: 0; color: #183656; font-family: 'Plus Jakarta Sans', sans-serif; font-size: 24px; letter-spacing: -.025em; }
body:has(.navbar) .workspace-heading p { margin: 6px 0 0; color: #72839a; font-size: 14px; }
body:has(.navbar) .workspace-heading .workspace-tag { padding: 7px 11px; border-radius: 999px; background: #e4f4ef; color: #147367; font-size: 12px; font-weight: 800; white-space: nowrap; }
body:has(.navbar) .usuarios-layout { gap: 16px; }
body:has(.navbar) .usuarios-sidebar { gap: 16px; }
body:has(.navbar) .card {
  padding: 16px; border: 1px solid #e1e9f1; border-radius: 12px; box-shadow: 0 5px 16px rgba(25, 49, 81, .07);
}
body:has(.navbar) .card h3 { margin: 2px 0 14px; color: #1b3a59; font-family: 'Plus Jakarta Sans', sans-serif; font-size: 15px; }
body:has(.navbar) .card input, body:has(.navbar) .card select { height: 38px; margin-bottom: 9px; border-color: #d6e0eb; background: #fbfcfe; }
body:has(.navbar) .card input:focus, body:has(.navbar) .card select:focus { outline: 3px solid rgba(62, 168, 157, .16); border-color: #4da99e; }
body:has(.navbar) .btn-buscar, body:has(.navbar) .btn-primary { background: #276c90; box-shadow: none; }
body:has(.navbar) .btn-success { background: #269b72; box-shadow: none; }
body:has(.navbar) .btn-buscar:hover, body:has(.navbar) .btn-primary:hover { background: #1f5876; }
body:has(.navbar) .btn-success:hover { background: #1e805e; }
body:has(.navbar) .usuarios-main { padding: 17px; border-radius: 12px; }
body:has(.navbar) table th { padding: 11px; background: #edf3f7; color: #57708a; font-size: 11px; letter-spacing: .025em; }
body:has(.navbar) table td { padding: 11px; color: #2b4058; }
body:has(.navbar) table tr:hover td { background: #f3faf8; }
body:has(.navbar) .list-counter { display: inline-block; margin-left: 7px; padding: 3px 8px; border-radius: 999px; background: #e4f4ef; color: #17796d; font-size: 11px; font-weight: 800; vertical-align: middle; }
body:has(.navbar) .admin-pagination { display: flex; justify-content: center; align-items: center; gap: 12px; margin: 18px 0 2px; color: #6b7c91; font-size: 12px; font-weight: 700; }
body:has(.navbar) .admin-pagination a { padding: 7px 11px; border-radius: 7px; background: #e8f4ff; color: #126da8; text-decoration: none; }
body:has(.navbar) .results-summary { margin: -4px 0 10px; color: #6e8097; font-size: 13px; }
body:has(.navbar) .badge-success { background: #d9f2e7; color: #167052; }
body:has(.navbar) .badge-danger { background: #fee5e6; color: #bd3a48; }
body:has(.navbar) .action-icon.text-success { color: #1b9b72; }
body:has(.navbar) .action-icon.text-danger { color: #e45663; }

@media (max-width: 900px) {
  body:has(.navbar) .navbar { position: static; height: auto; flex-wrap: wrap; padding: 10px 16px; }
  body:has(.navbar) .navbar-left { min-width: 0; }
  body:has(.navbar) .navbar-center { position: static; order: 3; width: 100%; padding: 5px 0; background: transparent; box-shadow: none; overflow: visible; }
  body:has(.navbar) .navbar-center::before { display: none; }
  body:has(.navbar) .navbar-center .nav-tabs { flex-direction: row; overflow-x: auto; }
  body:has(.navbar) .navbar-center .nav-tabs a { color: #49637d; background: #edf3f7; white-space: nowrap; }
  body:has(.navbar) .navbar-center .nav-tabs a.active { background: #276c90; }
  body:has(.navbar) .navbar + .main-content { margin-left: 0; padding: 22px 16px; background-size: 540px; }
  body:has(.navbar) .navbar + .main-content::before { top: 0; left: 0; }
  body:has(.navbar) .workspace-heading { align-items: flex-start; flex-direction: column; }
}

/* Panel de gestión siempre desplegado en escritorio */
@media (min-width: 901px) {
  body:has(.navbar) .navbar-center {
    display: block !important; visibility: visible !important; opacity: 1 !important;
    top: 68px !important; left: 0 !important; bottom: 0 !important; width: 232px !important;
    height: calc(100vh - 68px) !important; padding: 18px 12px !important; overflow: visible !important;
    background: #ffffff !important; border-right: 1px solid #dce6ef !important;
  }
  body:has(.navbar) .navbar-center::before {
    display: block !important; margin: 0 10px 12px !important; padding-bottom: 10px;
    border-bottom: 1px solid #e4ebf2; color: #5f7b97 !important;
  }
  body:has(.navbar) .navbar-center .nav-tabs {
    display: flex !important; visibility: visible !important; opacity: 1 !important;
    flex-direction: column !important; align-items: stretch !important; width: 100% !important;
    gap: 6px !important;
  }
  body:has(.navbar) .navbar-center .nav-tabs a {
    display: flex !important; visibility: visible !important; opacity: 1 !important;
    align-items: center; min-height: 43px; padding: 10px 12px !important;
    color: #38546f !important; background: #f7fafc !important; border: 1px solid transparent !important;
    border-radius: 8px !important; font-size: 13px !important; font-weight: 800 !important;
  }
  body:has(.navbar) .navbar-center .nav-tabs a::before { width: 25px !important; color: #238f84 !important; }
  body:has(.navbar) .navbar-center .nav-tabs a:hover { color: #176e99 !important; background: #edf7fb !important; border-color: #d7eaf3 !important; transform: none; }
  body:has(.navbar) .navbar-center .nav-tabs a.active { color: #126c62 !important; background: #e2f4ee !important; border-color: #bfe3d8 !important; }
}

/* Usuarios: tabla completa sin barra horizontal */
body:has(.navbar) .admin-users .usuarios-main { overflow-x: visible; min-width: 0; }
body:has(.navbar) .admin-users .usuarios-main table { min-width: 0; width: 100%; table-layout: fixed; }
body:has(.navbar) .admin-users .usuarios-main th,
body:has(.navbar) .admin-users .usuarios-main td { padding: 10px 9px; font-size: 13px; overflow-wrap: anywhere; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(1) { width: 19%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(2) { width: 40%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(3) { width: 17%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(4) { width: 12%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(5) { width: 12%; }
body:has(.navbar) .admin-users .usuarios-main td:last-child { white-space: nowrap; overflow-wrap: normal; }
body:has(.navbar) .admin-users .usuarios-main .action-icon { display: inline-block; margin: 0 3px; font-size: 1.05rem; }

/* La grilla de usuarios no debe sumar el 100% al margen del panel lateral. */
body:has(.navbar) .navbar + .main-content.admin-users {
  width: auto !important; grid-template-columns: minmax(255px, 285px) minmax(0, 1fr) !important;
}
body:has(.navbar) .admin-users .usuarios-sidebar { min-width: 0; }
body:has(.navbar) .admin-users .usuarios-sidebar .card { padding: 12px; }
body:has(.navbar) .admin-users .usuarios-sidebar .card h3 { margin-bottom: 10px; font-size: 14px; }
body:has(.navbar) .admin-users .usuarios-sidebar .card input,
body:has(.navbar) .admin-users .usuarios-sidebar .card select { height: 34px; margin-bottom: 7px; padding: 6px 9px; font-size: 13px; }
body:has(.navbar) .admin-users .usuarios-sidebar .btn { min-height: 37px; padding: 8px 10px; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(1) { width: 18%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(2) { width: 39%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(3) { width: 16%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(4) { width: 12%; }
body:has(.navbar) .admin-users .usuarios-main th:nth-child(5) { width: 15%; }
body:has(.navbar) .admin-users .usuarios-main td:last-child { min-width: 70px; text-align: center; }

@media (max-width: 900px) {
  body:has(.navbar) .admin-users .usuarios-main { overflow-x: auto; }
  body:has(.navbar) .admin-users .usuarios-main table { min-width: 640px; }
  body:has(.navbar) .navbar + .main-content.admin-users { width: auto !important; grid-template-columns: 1fr !important; }
}

/* Ambiente compartido: administración con la calidez del portal lector */
body:has(.navbar) { background: #f5f7fc; }
body:has(.navbar) { overflow-x: hidden; }
body:has(.navbar) .navbar {
  background: rgba(255,255,255,.94); border-bottom-color: #dbe4ef;
  backdrop-filter: blur(12px);
}
body:has(.navbar) .navbar-center {
  background: rgba(255,255,255,.92); border-right: 1px solid #dfe7f1;
  box-shadow: 3px 0 16px rgba(46, 68, 101, .06); backdrop-filter: blur(10px);
}
body:has(.navbar) .navbar-center::before { color: #6f8fa9; }
body:has(.navbar) .navbar-center .nav-tabs a { color: #50657d; }
body:has(.navbar) .navbar-center .nav-tabs a::before { color: #2f9b8c; }
body:has(.navbar) .navbar-center .nav-tabs a:hover { color: #176f9e; background: #edf7fb; }
body:has(.navbar) .navbar-center .nav-tabs a.active {
  color: #176f9e; background: #e5f5f0; box-shadow: none;
}
body:has(.navbar) .navbar-center .nav-tabs a.active::before { color: #178778; }
body:has(.navbar) .navbar + .main-content {
  background-color: #f5f7fc; background-size: min(39vw, 520px); background-position: center 63%;
  background-blend-mode: normal;
}
body:has(.navbar) .navbar + .main-content::before { background: rgba(245,247,252,.82); }
body:has(.navbar) .workspace-heading h1 { color: #2d3645; }
body:has(.navbar) .workspace-heading p { color: #6b7d97; }
body:has(.navbar) .workspace-heading .workspace-tag { background: #e6f5f0; color: #17796d; }
body:has(.navbar) .card, body:has(.navbar) .usuarios-main {
  background: rgba(255,255,255,.96); border-color: #e0e8f1; box-shadow: 0 8px 20px rgba(48, 67, 96, .08);
}
body:has(.navbar) .card h3 { color: #31435c; }
body:has(.navbar) .card input, body:has(.navbar) .card select { background: #fbfdff; }
body:has(.navbar) .btn-buscar, body:has(.navbar) .btn-primary { background: #087df5; }
body:has(.navbar) .btn-buscar:hover, body:has(.navbar) .btn-primary:hover { background: #066bd1; }
body:has(.navbar) .btn-success { background: #20ad52; }
body:has(.navbar) .btn-success:hover { background: #198f43; }
body:has(.navbar) table th { background: #edf4f8; color: #506b87; }
body:has(.navbar) table tr:hover td { background: #f3faf8; }

@media (max-width: 900px) {
  body:has(.navbar) .navbar-center { background: transparent; border: 0; }
  body:has(.navbar) .navbar-center .nav-tabs a { background: #eef5fa; }
  body:has(.navbar) .navbar-center .nav-tabs a.active { background: #e4f5ef; }
}

/* Acceso */
body.login-body { background: #f5f7fc !important; }
body.login-body::before { background-size: 900px auto; opacity: .07 !important; }
body.login-body .login-container { max-width: 490px; padding: 20px; }
body.login-body .login-card { padding: 37px 45px 36px; border-radius: 13px; box-shadow: 0 9px 24px rgba(37, 52, 77, .13); }
body.login-body .login-card .institution-mark { margin-bottom: 14px; }
body.login-body .login-title { font-size: 17px; line-height: 1.3; }
body.login-body .input-group { display: block; padding: 0; border: 0; background: transparent; }
body.login-body .input-group i { display: none; }
body.login-body .input-group input { padding: 10px; border-radius: 7px; }
body.login-body .btn { min-height: 37px; padding: 9px; font-size: 13px; }

@media (max-width: 900px) {
  .navbar { flex-wrap: wrap; padding: 12px 16px; }
  .navbar-left { min-width: 0; }
  .navbar-center { order: 3; width: 100%; overflow-x: auto; text-align: left; }
  .navbar-right .btn-small { width: auto; }
  .main-content { padding: 16px; }
  .usuarios-layout { grid-template-columns: 1fr; }
}