/* ========================================
   Salud Aguilar - Estilos Principales
   ======================================== */

/* ========== Variables CSS ========== */
:root {
  /* Colores Principales (Salud Aguilar) */
  --primary-navy: #1B3F6B;
  --primary-navy-dark: #0F2847;

  /* Cyan/Turquesa - Secundario */
  --secondary-cyan: #56C7E8;
  --secondary-cyan-light: #8DD9F0;

  /* Morado/Púrpura - Acento */
  --accent-purple: #B19CD9;
  --accent-purple-light: #D4C5F0;

  /* Neutrales */
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --gray: #E0E0E0;
  --dark-gray: #666666;
  --black: #1A1A1A;

  /* Colores de Marca Lao Zen */
  --laozen-gold: #C4996B;
  --laozen-gold-light: #DDB892;
  --laozen-navy: #2C3E50;

  /* Tipografía */
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Open Sans', sans-serif;

  /* Tamaños de Fuente */
  --h1-size: 3rem;
  --h2-size: 2.5rem;
  --h3-size: 2rem;
  --h4-size: 1.5rem;
  --body-size: 1rem;
  --small-size: 0.875rem;

  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;

  /* Bordes */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-full: 50%;

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);

  /* Transiciones */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.6s ease;
}

/* ========== Reset y Base ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--body-size);
  line-height: 1.6;
  color: var(--black);
  background-color: var(--white);
  overflow-x: hidden;
}

/* ========== Tipografía ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

h1 {
  font-size: var(--h1-size);
}

h2 {
  font-size: var(--h2-size);
}

h3 {
  font-size: var(--h3-size);
}

h4 {
  font-size: var(--h4-size);
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--secondary-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ========== Container ========== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

/* ========== Header y Navegación ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: transform var(--transition-normal);
}

.header.hidden {
  transform: translateY(-100%);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: 1.5rem;
  font-family: var(--font-primary);
  font-weight: 700;
  color: var(--primary-navy);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  height: 50px;
  width: auto;
}

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

.nav-menu a {
  color: var(--primary-navy);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
  background-color: var(--secondary-cyan-light);
  color: var(--primary-navy-dark);
}

.btn-cta {
  background: linear-gradient(135deg, var(--secondary-cyan), var(--accent-purple));
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--white);
}

/* Menú hamburguesa para móviles */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--primary-navy);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ========== Hero Section ========== */
.hero {
  padding-top: 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--secondary-cyan-light) 0%, var(--accent-purple-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".25" fill="%23FFFFFF"></path></svg>');
  background-repeat: no-repeat;
  background-position: bottom;
  background-size: cover;
  opacity: 0.5;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--primary-navy);
  margin-bottom: var(--spacing-sm);
}

.hero .slogan {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--primary-navy-dark);
  margin-bottom: var(--spacing-md);
  font-weight: 300;
}

.hero p {
  font-size: 1.1rem;
  color: var(--dark-gray);
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  font-size: var(--h2-size);
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--dark-gray);
  max-width: 700px;
  margin: 0 auto;
}

/* ========== Cards ========== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--secondary-cyan), var(--accent-purple));
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 1.8rem;
  color: var(--white);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--dark-gray);
  line-height: 1.6;
}

/* ========== Botones ========== */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  font-family: var(--font-primary);
  font-size: 1rem;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary-cyan), var(--accent-purple));
  color: var(--white);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--primary-navy);
  border: 2px solid var(--primary-navy);
}

.btn-secondary:hover {
  background-color: var(--primary-navy);
  color: var(--white);
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* ========== Equipo ========== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.team-member {
  text-align: center;
  padding: var(--spacing-md);
}

.team-member img {
  width: 200px;
  height: 200px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
  margin: 0 auto var(--spacing-sm);
  border: 5px solid var(--secondary-cyan-light);
}

.team-member h3 {
  margin-bottom: var(--spacing-xs);
}

.team-member .role {
  color: var(--secondary-cyan);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.team-member p {
  color: var(--dark-gray);
}

/* ========== Valores ========== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.value-item {
  text-align: center;
  padding: var(--spacing-sm);
}

.value-item .icon {
  font-size: 2rem;
  color: var(--secondary-cyan);
  margin-bottom: var(--spacing-xs);
}

.value-item h4 {
  font-size: 1.1rem;
  color: var(--primary-navy);
}

/* ========== Formulario de Contacto ========== */
.contact-form {
  max-width: 700px;
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-lg);
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

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

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 600;
  color: var(--primary-navy);
  margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-sm);
  border: 2px solid var(--gray);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-secondary);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--secondary-cyan);
}

.form-group.error input,
.form-group.error textarea {
  border-color: #e74c3c;
}

.error-message {
  color: #e74c3c;
  font-size: var(--small-size);
  margin-top: var(--spacing-xs);
  display: none;
}

.form-group.error .error-message {
  display: block;
}

.btn-submit {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, var(--secondary-cyan), var(--accent-purple));
  color: var(--white);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ========== Info de Contacto ========== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
}

.contact-item .icon {
  font-size: 1.5rem;
  color: var(--secondary-cyan);
  flex-shrink: 0;
}

.contact-item-content h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}

.contact-item-content p {
  color: var(--dark-gray);
  margin-bottom: 0;
}

/* ========== Mapa ========== */
.map-container {
  width: 100%;
  height: 450px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: var(--spacing-lg);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ========== Footer ========== */
.footer {
  background-color: var(--primary-navy);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

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

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
  color: var(--light-gray);
  margin-bottom: var(--spacing-xs);
  display: block;
}

.footer-section a:hover {
  color: var(--secondary-cyan);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.social-links a {
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.social-links a:hover {
  background-color: var(--secondary-cyan);
}

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

.footer-bottom p {
  margin-bottom: var(--spacing-xs);
}

.footer-bottom a {
  color: var(--secondary-cyan);
}

/* ========== WhatsApp Flotante ========== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 40px rgba(37, 211, 102, 0.4);
  color: var(--white);
}

/* ========== Scroll to Top Button ========== */
.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--primary-navy);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-fast);
  z-index: 998;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-5px);
  background-color: var(--secondary-cyan);
}

/* ========== Visualizador PDF ========== */
.pdf-viewer-container {
  max-width: 900px;
  margin: var(--spacing-lg) auto;
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.pdf-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--light-gray);
  border-bottom: 2px solid var(--gray);
}

.pdf-controls button {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--primary-navy);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.pdf-controls button:hover {
  background-color: var(--secondary-cyan);
}

.pdf-controls button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#pdf-canvas {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

/* ========== Lao Zen Específico ========== */
.laozen-section {
  background: linear-gradient(135deg, var(--laozen-gold-light) 0%, var(--laozen-navy) 100%);
  padding: var(--spacing-xl) 0;
}

.laozen-section h2,
.laozen-section h3 {
  color: var(--white);
}

.laozen-section p {
  color: var(--light-gray);
}

/* ========== Blog Grid ========== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.blog-card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-card-content {
  padding: var(--spacing-md);
}

.blog-card h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-sm);
}

.blog-card .meta {
  color: var(--dark-gray);
  font-size: var(--small-size);
  margin-bottom: var(--spacing-sm);
}

.blog-card p {
  color: var(--dark-gray);
  margin-bottom: var(--spacing-sm);
}

.read-more {
  color: var(--secondary-cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.read-more:hover {
  color: var(--primary-navy);
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Accesibilidad ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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