/* ============================================
   Estilos Principales - Layout General
   ============================================ */

/* ===== Reset y Normalización ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden !important;
  max-width: 100vw !important;
  width: 100% !important;
  position: relative;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden !important;
  overflow-y: auto;
  max-width: 100vw !important;
  width: 100% !important;
  position: relative;
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center;
}

/* Escalado responsive de imágenes */
@media (max-width: 768px) {
  img {
    width: 100%;
    height: auto;
  }
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
}

/* ===== Layout Principal ===== */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  overflow-x: hidden;
  box-sizing: border-box;
}

.section {
  padding: var(--spacing-4xl) var(--spacing-lg);
}

.section--white {
  background-color: var(--color-bg-primary);
}

.section--light {
  background-color: var(--color-bg-secondary);
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-index-sticky);
  transition: all var(--transition-base);
}

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.header__logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
}

.header__nav {
  display: flex;
  gap: var(--spacing-xl);
}

.header__nav-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  position: relative;
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-base);
}

.header__nav-link:hover {
  color: var(--color-teal);
}

/* ===== Botón Menú Hamburguesa ===== */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  position: relative;
}

.menu-toggle__line {
  width: 100%;
  height: 3px;
  background-color: var(--color-navy);
  border-radius: 3px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.menu-toggle.is-active .menu-toggle__line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

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

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

/* ===== Main Content ===== */
.main {
  min-height: calc(100vh - 200px);
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  box-sizing: border-box;
}

/* ===== Secciones Específicas ===== */
.section-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
}

.section-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-4xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-summary {
  text-align: center;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-2xl);
}

/* ===== Footer ===== */
.footer {
  background-color: #1b1e3c;
  color: var(--color-text-white);
  padding: var(--spacing-4xl) var(--spacing-lg);
  text-align: center;
}

.footer__text {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

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

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

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-3xl) var(--spacing-md);
  }
  
  .section-title {
    font-size: var(--font-size-4xl);
  }
  
  .section-subtitle {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .header__container {
    position: relative;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .header__nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: 1000;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  
  .header__nav.is-open {
    transform: translateX(0);
  }
  
  .header__nav-link {
    padding: var(--spacing-md);
    border-bottom: 1px solid #e0e0e0;
    font-size: var(--font-size-lg);
    text-align: left;
    width: 100%;
  }
  
  .header__nav-link:last-child {
    border-bottom: none;
  }
  
  .header__nav-link:hover {
    background-color: var(--color-bg-secondary);
    padding-left: var(--spacing-lg);
  }
  
  .section {
    padding: var(--spacing-lg) var(--spacing-sm) !important;
  }
  
  .section-title {
    font-size: var(--font-size-2xl) !important;
    margin-bottom: var(--spacing-xs) !important;
  }
  
  .section-subtitle {
    font-size: var(--font-size-sm) !important;
    margin-bottom: var(--spacing-md) !important;
  }
  
  .container {
    padding: 0 var(--spacing-sm) !important;
  }
}

@media (max-width: 480px) {
  .header__nav {
    top: 60px;
    padding: var(--spacing-lg);
  }
  
  .header__nav-link {
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

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

/* ===== Focus visible para navegación por teclado ===== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm);
}