/* ======================================== */
/* VARIABLES CSS - SISTEMA DE DISEÑO */
/* ======================================== */

:root {
  /* Colores principales */
  --color-primary: #1e3c72;
  --color-primary-light: #2a5298;
  --color-primary-dark: #152d55;
  --color-primary-gradient: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-light) 100%
  );

  /* Colores secundarios */
  --color-success: #28a745;
  --color-success-light: #20c997;
  --color-warning: #ffc107;
  --color-warning-dark: #fd7e14;
  --color-danger: #dc3545;
  --color-danger-dark: #c82333;
  --color-info: #17a2b8;
  --color-info-light: #0ea5e9;
  --color-purple: #6f42c1;
  --color-purple-light: #8b5cf6;
  --color-orange: #fd7e14;
  --color-orange-light: #f97316;

  /* Colores neutrales */
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #f1f3f5;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.18);

  /* Radios */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Espaciado */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
}

/* ======================================== */
/* RESET Y ESTILOS BASE */
/* ======================================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family:
    "Segoe UI",
    -apple-system,
    BlinkMacSystemFont,
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  background: var(--color-primary-gradient);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  color: var(--color-gray-900);
}

/* Modo oscuro automático */
@media (prefers-color-scheme: dark) {
  body {
    background: linear-gradient(135deg, #0f1a2e 0%, #1a2d4a 100%);
  }
}

/* Fondo animado optimizado */
body::before {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.08) 0%,
    transparent 70%
  );
  animation: rotate 30s linear infinite;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ======================================== */
/* CONTENEDOR PRINCIPAL */
/* ======================================== */

.contenedor {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 0;
  box-shadow: none;
  position: relative;
  overflow-x: auto;
  min-height: 100vh;
  z-index: 1;
}

@media (prefers-color-scheme: dark) {
  .contenedor {
    background: rgba(20, 30, 50, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

@media (min-width: 1920px) {
  .contenedor {
    max-width: 1600px;
    padding: var(--space-8);
  }
}

@media (max-width: 1440px) {
  .contenedor {
    max-width: 1300px;
    padding: var(--space-5);
  }
}

@media (max-width: 1024px) {
  .contenedor {
    padding: var(--space-4);
  }
}

@media (max-width: 768px) {
  .contenedor {
    padding: var(--space-3);
  }
}

/* Línea brillante en el contenedor */
.contenedor::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(30, 60, 114, 0.3),
    transparent
  );
  transform: translateX(-100%);
  animation: shine 4s ease-in-out infinite;
  z-index: 2;
}

@keyframes shine {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ======================================== */
/* HEADER CON LOGO - MÁS GRANDE */
/* ======================================== */

header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 2px solid rgba(30, 60, 114, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-5);
  position: relative;
  z-index: 2;
}

@media (prefers-color-scheme: dark) {
  header {
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }
}

.header-logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}

/* ======================================== */
/* LOGO HORIZONTAL EN TODAS LAS PANTALLAS */
/* ======================================== */

.header-logo img {
  height: auto;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-base);
  max-height: 64px;
  min-height: 0;
  max-width: 100%;
}

.header-logo img:hover {
  transform: scale(1.03);
}

/* Pantallas grandes (4K, 2K) */
@media (min-width: 1920px) {
  .header-logo img {
    max-height: 80px;
  }
}

/* Laptops grandes (1440px) */
@media (max-width: 1440px) {
  .header-logo img {
    max-height: 70px;
  }
}

/* Laptops medianas (1366px) */
@media (max-width: 1366px) {
  .header-logo img {
    max-height: 68px;
  }
}

/* Tablets (1024px) */
@media (max-width: 1024px) {
  header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }
  .header-logo img {
    max-height: 64px;
  }
}

/* Tablets pequeñas (768px) */
@media (max-width: 768px) {
  .header-logo img {
    max-height: 60px;
  }
}

/* Móviles grandes (576px) */
@media (max-width: 576px) {
  .header-logo img {
    max-height: 52px;
  }
}

/* Móviles pequeños (400px) */
@media (max-width: 400px) {
  .header-logo img {
    max-height: 44px;
  }
}

.header-titulo {
  flex: 1 1 auto;
  text-align: center;
  padding: 0 var(--space-5);
}

.header-titulo h1 {
  color: var(--color-primary);
  font-size: clamp(1.125rem, 2vw + 0.5rem, 2rem);
  font-weight: 700;
  margin: 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  letter-spacing: 0.5px;
  line-height: 1.3;
}

@media (prefers-color-scheme: dark) {
  .header-titulo h1 {
    color: #e8edf5;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
}

/* ======================================== */
/* INFO SESIÓN */
/* ======================================== */

.info-sesion {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: linear-gradient(
    135deg,
    var(--color-gray-50) 0%,
    var(--color-gray-200) 100%
  );
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  min-width: 250px;
  transition:
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.info-sesion:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

@media (prefers-color-scheme: dark) {
  .info-sesion {
    background: linear-gradient(135deg, #1a2a4a 0%, #0f1a2e 100%);
    border-color: rgba(255, 255, 255, 0.05);
  }
}

@media (max-width: 1024px) {
  .info-sesion {
    min-width: auto;
    width: 100%;
    max-width: 350px;
    margin: 0 auto;
    padding: var(--space-4) var(--space-5);
  }
}

@media (max-width: 768px) {
  .info-sesion {
    padding: var(--space-3) var(--space-4);
  }
}

.usuario-info {
  flex: 1;
  text-align: left;
  min-width: 0;
}

.usuario-info span {
  color: var(--color-gray-700);
  font-size: 0.875rem;
  font-weight: 500;
  display: block;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  .usuario-info span {
    color: var(--color-gray-300);
  }
}

.usuario-info strong {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.125rem;
  display: block;
  margin-top: var(--space-1);
}

@media (prefers-color-scheme: dark) {
  .usuario-info strong {
    color: #6a8ecf;
  }
}

/* Botón cerrar sesión - icono de puerta con tooltip */
.btn-cerrar {
  width: 54px;
  height: 54px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  cursor: pointer;
  position: relative;
  font-size: 0; /* El texto "Cerrar Sesión" se oculta visualmente pero se mantiene para accesibilidad */
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
  will-change: transform;
}

.btn-cerrar::before {
  content: "";
  width: 34px;
  height: 34px;
  background: url('../icon/exit.png') center / contain no-repeat;
  transition: transform var(--transition-base);
}

.btn-cerrar:hover {
  border-color: var(--color-danger);
  box-shadow: 0 6px 20px rgba(220, 53, 69, 0.25);
  transform: translateY(-2px);
}

.btn-cerrar:hover::before {
  transform: scale(1.08);
}

/* Tooltip al pasar el mouse */
.btn-cerrar::after {
  content: "Cerrar Sesión";
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast);
  z-index: 100;
}

.btn-cerrar:hover::after,
.btn-cerrar:focus-visible::after {
  opacity: 1;
  visibility: visible;
}

.btn-cerrar:focus-visible {
  outline: 3px solid var(--color-danger);
  outline-offset: 3px;
}

.btn-cerrar:active {
  transform: scale(0.95);
}

/* ======================================== */
/* MENÚ PRINCIPAL */
/* ======================================== */

.menu-principal {
  margin-bottom: var(--space-8);
  border-bottom: 2px solid rgba(30, 60, 114, 0.08);
  padding-bottom: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  position: relative;
  z-index: 2;
}

@media (prefers-color-scheme: dark) {
  .menu-principal {
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }
}

.menu-principal a {
  display: inline-block;
  padding: var(--space-2) var(--space-5);
  color: var(--color-gray-700);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-base);
  position: relative;
  background: transparent;
  border: 2px solid transparent;
}

.menu-principal a:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

@media (prefers-color-scheme: dark) {
  .menu-principal a {
    color: var(--color-gray-300);
  }
  .menu-principal a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #6a8ecf;
    border-color: #6a8ecf;
  }
}

.menu-principal a.activo {
  background: var(--color-primary-gradient);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(30, 60, 114, 0.3);
}

.menu-principal a.activo:hover {
  background: linear-gradient(
    135deg,
    var(--color-primary-light) 0%,
    var(--color-primary) 100%
  );
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(30, 60, 114, 0.4);
}

.menu-principal a:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .menu-principal {
    flex-direction: column;
    gap: var(--space-1);
    padding-bottom: var(--space-3);
  }
  .menu-principal a {
    width: 100%;
    text-align: center;
    padding: var(--space-3) var(--space-4);
    font-size: 0.875rem;
  }
}

/* ======================================== */
/* TARJETAS DE ESTADÍSTICAS */
/* ======================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.stats-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.stats-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-bounce);
  border: 1px solid var(--color-gray-200);
  position: relative;
  overflow: hidden;
  cursor: default;
  will-change: transform;
}

@media (prefers-color-scheme: dark) {
  .stats-card {
    background: rgba(30, 45, 70, 0.8);
    border-color: rgba(255, 255, 255, 0.06);
  }
}

.stats-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.stats-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

@media (min-width: 1920px) {
  .stats-card {
    padding: var(--space-8) var(--space-6);
  }
  .stats-number {
    font-size: 2.625rem;
  }
  .stats-label {
    font-size: 1rem;
  }
}

@media (max-width: 1440px) {
  .stats-card {
    padding: var(--space-4);
  }
  .stats-number {
    font-size: 2rem;
  }
  .stats-label {
    font-size: 0.8125rem;
  }
}

@media (max-width: 1024px) {
  .stats-grid,
  .stats-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .stats-grid,
  .stats-grid-2 {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .stats-card {
    padding: var(--space-4);
  }
  .stats-number {
    font-size: 1.75rem;
  }
}

.stats-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  display: block;
  line-height: 1;
}

.stats-number {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: var(--space-2);
  transition: opacity var(--transition-base);
}

@media (prefers-color-scheme: dark) {
  .stats-number {
    color: #6a8ecf;
  }
}

.stats-label {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  font-weight: 500;
}

@media (prefers-color-scheme: dark) {
  .stats-label {
    color: var(--color-gray-400);
  }
}

.stats-sub {
  font-size: 0.75rem;
  color: var(--color-success);
  margin-top: var(--space-2);
  font-weight: 600;
}

/* Colores de tarjetas - usando variables */
.stats-card.total::before {
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-primary-light)
  );
}
.stats-card.activos::before {
  background: linear-gradient(
    90deg,
    var(--color-success),
    var(--color-success-light)
  );
}
.stats-card.inactivos::before {
  background: linear-gradient(
    90deg,
    var(--color-warning),
    var(--color-warning-dark)
  );
}
.stats-card.jubilados::before {
  background: linear-gradient(
    90deg,
    var(--color-purple),
    var(--color-purple-light)
  );
}
.stats-card.baja::before {
  background: linear-gradient(90deg, var(--color-danger), #f87171);
}
.stats-card.nuevos::before {
  background: linear-gradient(
    90deg,
    var(--color-info),
    var(--color-info-light)
  );
}
.stats-card.cambios::before {
  background: linear-gradient(
    90deg,
    var(--color-orange),
    var(--color-orange-light)
  );
}
.stats-card.pagos::before {
  background: linear-gradient(90deg, var(--color-success), #10b981);
}

/* ======================================== */
/* BARRA DE PROGRESO */
/* ======================================== */

.progress-container {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-top: var(--space-5);
  border: 1px solid var(--color-gray-200);
}

@media (prefers-color-scheme: dark) {
  .progress-container {
    background: rgba(30, 45, 70, 0.8);
    border-color: rgba(255, 255, 255, 0.06);
  }
}

@media (max-width: 768px) {
  .progress-container {
    padding: var(--space-4);
  }
}

.progress-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-gray-700);
  font-weight: 500;
}

@media (max-width: 768px) {
  .progress-label {
    font-size: 0.75rem;
    flex-direction: column;
    gap: var(--space-1);
  }
}

.progress-value {
  color: var(--color-primary);
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .progress-value {
    color: #6a8ecf;
  }
}

.progress-bar {
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  height: 10px;
  overflow: hidden;
}

.progress-fill {
  background: var(--color-primary-gradient);
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: width;
}

/* ======================================== */
/* TABLAS */
/* ======================================== */

.tabla-container {
  overflow-x: auto;
  margin-top: var(--space-5);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-200);
  -webkit-overflow-scrolling: touch;
}

@media (prefers-color-scheme: dark) {
  .tabla-container {
    background: rgba(30, 45, 70, 0.8);
    border-color: rgba(255, 255, 255, 0.06);
  }
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 600px;
}

@media (min-width: 1920px) {
  table {
    font-size: 1rem;
  }
  th,
  td {
    padding: var(--space-4);
  }
}

@media (max-width: 1440px) {
  table {
    font-size: 0.8125rem;
  }
  th,
  td {
    padding: var(--space-3) var(--space-2);
  }
}

@media (max-width: 768px) {
  table {
    font-size: 0.75rem;
    min-width: 480px;
  }
  th,
  td {
    padding: var(--space-2) var(--space-1);
  }
}

th {
  background: var(--color-primary-gradient);
  color: var(--color-white);
  padding: var(--space-4) var(--space-3);
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  font-size: 0.875rem;
  letter-spacing: 0.3px;
  position: sticky;
  top: 0;
  z-index: 2;
}

td {
  padding: var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--color-gray-200);
  white-space: normal;
  word-break: break-word;
  font-size: 0.8125rem;
  transition: background var(--transition-fast);
}

@media (prefers-color-scheme: dark) {
  td {
    border-bottom-color: rgba(255, 255, 255, 0.05);
    color: var(--color-gray-200);
  }
}

tr:hover td {
  background: var(--color-gray-50);
}

@media (prefers-color-scheme: dark) {
  tr:hover td {
    background: rgba(255, 255, 255, 0.03);
  }
}

/* ======================================== */
/* BOTONES DE ACCIÓN */
/* ======================================== */

.acciones {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}

.btn-accion {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.75rem;
  color: var(--color-white);
  flex: 1;
  text-align: center;
  white-space: nowrap;
  display: inline-block;
  font-weight: 600;
  transition: all var(--transition-bounce);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border: none;
  cursor: pointer;
  min-width: 56px;
  will-change: transform;
}

@media (max-width: 768px) {
  .btn-accion {
    padding: var(--space-1) var(--space-2);
    font-size: 0.625rem;
    min-width: 44px;
  }
  .acciones {
    gap: var(--space-1);
  }
}

.btn-accion::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.5),
    transparent
  );
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn-accion:hover::before {
  transform: translateX(100%);
}

.btn-accion:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
}

.btn-accion:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-accion:active {
  transform: scale(0.95);
}

.btn-ver {
  background: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);
}
.btn-ver:hover {
  background: linear-gradient(135deg, #1976d2 0%, #0d47a1 100%);
}

.btn-editar {
  background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
}
.btn-editar:hover {
  background: linear-gradient(135deg, #f57c00 0%, #e65100 100%);
}

.btn-eliminar {
  background: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
}
.btn-eliminar:hover {
  background: linear-gradient(135deg, #d32f2f 0%, #b71c1c 100%);
}

/* ======================================== */
/* PAGINACIÓN */
/* ======================================== */

.paginacion {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.btn-pagina {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-base);
  font-size: 0.875rem;
  cursor: pointer;
}

@media (prefers-color-scheme: dark) {
  .btn-pagina {
    background: rgba(30, 45, 70, 0.8);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--color-gray-200);
  }
}

@media (max-width: 768px) {
  .btn-pagina {
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-2);
    font-size: 0.8125rem;
  }
}

.btn-pagina:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-pagina.activo {
  background: var(--color-primary-gradient);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(30, 60, 114, 0.3);
}

.btn-pagina:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ======================================== */
/* SCROLLBAR PERSONALIZADA */
/* ======================================== */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-gradient);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-gray-100);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    135deg,
    var(--color-primary-light) 0%,
    var(--color-primary) 100%
  );
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-gray-100);
}

/* ======================================== */
/* TIPOGRAFÍA GLOBAL */
/* ======================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.3;
}

@media (prefers-color-scheme: dark) {
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    color: #e8edf5;
  }
}

a {
  text-decoration: none;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-light);
}

a:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ======================================== */
/* ANIMACIONES GLOBALES MEJORADAS */
/* ======================================== */

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

/* Clases de utilidad para animaciones */
.animate-fade-in {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-slide-right {
  animation: slideInRight 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-slide-left {
  animation: slideInLeft 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Stagger animations para elementos de lista */
.stagger > *:nth-child(1) {
  animation-delay: 0.05s;
}
.stagger > *:nth-child(2) {
  animation-delay: 0.1s;
}
.stagger > *:nth-child(3) {
  animation-delay: 0.15s;
}
.stagger > *:nth-child(4) {
  animation-delay: 0.2s;
}
.stagger > *:nth-child(5) {
  animation-delay: 0.25s;
}
.stagger > *:nth-child(6) {
  animation-delay: 0.3s;
}
.stagger > *:nth-child(7) {
  animation-delay: 0.35s;
}
.stagger > *:nth-child(8) {
  animation-delay: 0.4s;
}

/* ======================================== */
/* UTILIDADES RESPONSIVE */
/* ======================================== */

/* Ocultar en móvil */
.hide-mobile {
  display: block;
}
@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

/* Ocultar en desktop */
.hide-desktop {
  display: none;
}
@media (max-width: 768px) {
  .hide-desktop {
    display: block !important;
  }
}

/* Text truncate */
.text-truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* ======================================== */
/* MEJORAS DE ACCESIBILIDAD */
/* ======================================== */

/* Focus visible para navegación por teclado */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  z-index: 9999;
}

.skip-link:focus {
  top: var(--space-3);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}