/* Estilos globales para SaludNova - Solo Verde y Blanco */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

/* Variables CSS - Paleta Verde y Blanco */
:root {
  /* Colores principales - Solo Verde */
  --primary-color: #4caf50;
  --primary-dark: #2e7d32;
  --primary-light: #81c784;
  --primary-lighter: #c8e6c9;
  --primary-lightest: #e8f5e8;

  /* Colores secundarios - Tonos de Verde */
  --secondary-color: #388e3c;
  --accent-color: #66bb6a;
  --success-color: #4caf50;
  --warning-color: #689f38;
  --error-color: #558b2f;
  --info-color: #4caf50;

  /* Colores de texto */
  --text-primary: #1b5e20;
  --text-secondary: #2e7d32;
  --text-light: #81c784;
  --text-white: #ffffff;
  --text-dark: #1b5e20;

  /* Colores de fondo */
  --bg-primary: #ffffff;
  --bg-secondary: #f1f8e9;
  --bg-light: #f9fbe7;
  --bg-dark: #1b5e20;
  --bg-green-light: #e8f5e8;

  /* Colores de borde */
  --border-color: #c8e6c9;
  --border-light: #e8f5e8;
  --border-medium: #a5d6a7;
  --border-dark: #66bb6a;

  /* Sombras */
  --shadow-sm: 0 2px 4px rgba(46, 125, 50, 0.1);
  --shadow: 0 4px 8px rgba(46, 125, 50, 0.15);
  --shadow-lg: 0 8px 16px rgba(46, 125, 50, 0.2);
  --shadow-xl: 0 12px 24px rgba(46, 125, 50, 0.25);

  /* Bordes redondeados */
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-pill: 50px;

  /* Espaciado */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Tipografía */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Transiciones */
  --transition-base: 0.3s ease;
  --transition-fast: 0.15s ease;
  --transition-slow: 0.5s ease;

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1050;
  --z-tooltip: 1070;
}

/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  font-size: var(--font-size-base);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Contenedores */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

/* Header global */
.header {
  background: var(--bg-primary);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  border-bottom: 2px solid var(--border-light);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--primary-color);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  transition: all var(--transition-base);
}

.logo:hover {
  color: var(--primary-dark);
  transform: scale(1.05);
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  border: 2px solid var(--primary-light);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
  position: relative;
  border: 2px solid transparent;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background-color: var(--bg-green-light);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: var(--border-radius-sm);
}

.header-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.menu-toggle {
  display: none;
  background: none;
  border: 2px solid var(--border-color);
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
}

.menu-toggle:hover {
  background-color: var(--bg-green-light);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Botones globales */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  justify-content: center;
  line-height: 1;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--text-white);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), #1b5e20);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-dark));
  color: var(--text-white);
  border-color: var(--secondary-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--primary-dark), #1b5e20);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-color), var(--primary-light));
  color: var(--text-white);
  border-color: var(--success-color);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: var(--font-size-lg);
  border-radius: var(--border-radius-lg);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  border-radius: var(--border-radius-sm);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Formularios */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: all var(--transition-base);
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-lightest);
  background-color: var(--bg-light);
}

.form-group input:valid {
  border-color: var(--success-color);
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: var(--error-color);
}

/* Secciones */
.section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  text-align: center;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: var(--border-radius-sm);
}

.section-subtitle {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--text-white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")
    repeat;
  z-index: 1;
}

.hero-content {
  text-align: center;
  z-index: 2;
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.hero-content h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

/* Tarjetas */
.card {
  background: var(--bg-primary);
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition-base);
  overflow: hidden;
  position: relative;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.card-header {
  padding: var(--spacing-lg);
  background: var(--bg-light);
  border-bottom: 2px solid var(--border-light);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  background: var(--bg-light);
  border-top: 2px solid var(--border-light);
}

/* Grids */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background: var(--bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--primary-lightest), transparent);
  transition: left 0.5s;
}

.feature-card:hover::before {
  left: 100%;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-color);
}

.feature-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: var(--font-size-2xl);
  color: var(--text-white);
  box-shadow: var(--shadow);
  position: relative;
}

.feature-icon::after {
  content: "";
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border: 2px solid var(--primary-light);
  border-radius: 50%;
  opacity: 0;
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon::after {
  opacity: 1;
  transform: scale(1.1);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer global */
.footer {
  background: linear-gradient(135deg, var(--primary-dark), #1b5e20);
  color: var(--text-white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
  margin-top: auto;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'%3E%3Cpath d='m0 40l40-40h-40v40zm40 0v-40h-40l40 40z'/%3E%3C/g%3E%3C/svg%3E")
    repeat;
  z-index: 0;
}

.footer > * {
  position: relative;
  z-index: 1;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-lg);
  color: var(--text-white);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.footer-section h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-light), #81c784);
  border-radius: var(--border-radius-sm);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
}

.footer-section ul li a:hover {
  color: var(--text-white);
  transform: translateX(5px);
  text-decoration: underline;
}

.footer-section ul li i {
  color: var(--primary-light);
  width: 20px;
  text-align: center;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--text-white);
  text-decoration: underline;
}

/* Utilidades */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.text-primary {
  color: var(--primary-color) !important;
}
.text-secondary {
  color: var(--text-secondary) !important;
}
.text-success {
  color: var(--success-color) !important;
}
.text-white {
  color: var(--text-white) !important;
}

.bg-primary {
  background-color: var(--primary-color) !important;
}
.bg-secondary {
  background-color: var(--bg-secondary) !important;
}
.bg-light {
  background-color: var(--bg-light) !important;
}
.bg-white {
  background-color: var(--bg-primary) !important;
}

.mt-4 {
  margin-top: var(--spacing-xl);
}
.mb-4 {
  margin-bottom: var(--spacing-xl);
}
.p-4 {
  padding: var(--spacing-xl);
}

.hidden {
  display: none !important;
}
.visible {
  display: block !important;
}

/* Animaciones */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}
.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}
.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .header-actions {
    display: none;
  }
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: var(--spacing-sm) 0;
  }
  .hero {
    min-height: 60vh;
    padding: var(--spacing-xl) 0;
  }
  .hero-content h1 {
    font-size: var(--font-size-2xl);
  }
  .hero-content p {
    font-size: var(--font-size-base);
  }
  .btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }
  .feature-card {
    padding: var(--spacing-lg);
  }
  .container {
    padding: 0 var(--spacing-sm);
  }
  .section {
    padding: var(--spacing-xl) 0;
  }
  .section-title {
    font-size: var(--font-size-2xl);
  }
}

/* Estados de carga */
.loading {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--primary-color);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

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

.btn:focus-visible,
.nav-link:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}