/* ========================================
   Colegio San Agustín - Estilos Globales
   ======================================== */

/* Variables CSS */
:root {
  /* Paleta de colores */
  --csa-primary: #111111;      /* texto principal */
  --csa-accent: #F6C740;       /* dorado del anillo */
  --csa-accent-2: #848746;     /* verde oliva */
  --csa-accent-3: #B65B26;     /* marrón anaranjado */
  --csa-surface: #F8F5F2;      /* fondo cálido */
  --csa-neutral: #CDBDA9;      /* neutro */
  --csa-link: #0A66C2;         /* enlaces */

  /* Diseño */
  --radius: 14px;              /* esquinas redondeadas grandes */
  --shadow: 0 8px 24px rgba(0,0,0,.08); /* sombra suave */
  --shadow-hover: 0 12px 32px rgba(0,0,0,.12);

  /* Espaciado */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;

  /* Tipografía */
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Transiciones */
  --transition-fast: 200ms ease-in-out;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

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

body {
  font-family: var(--font-system);
  line-height: var(--line-height-base);
  color: var(--csa-primary);
  background-color: var(--csa-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

/* Enlaces */
a {
  color: var(--csa-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--csa-accent-3);
  text-decoration: underline;
}

a:focus-visible {
  outline: 3px solid var(--csa-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--csa-primary);
  color: white;
  padding: var(--space-sm);
  z-index: 100;
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
}

/* Header */
.header {
  background: white;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header__logo-img {
  height: 50px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__list {
  list-style: none;
  display: flex;
  gap: var(--space-md);
  margin: 0;
}

.nav__item {
  position: relative;
}

.nav__link {
  color: var(--csa-primary);
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  display: block;
  border-radius: 8px;
  transition: background-color var(--transition-fast);
}

.nav__link:hover {
  background-color: var(--csa-surface);
  text-decoration: none;
}

.nav__link--active {
  background-color: var(--csa-accent);
  color: var(--csa-primary);
}

/* Menú móvil */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav__toggle-icon {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--csa-primary);
  position: relative;
  transition: background var(--transition-fast);
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 3px;
  background: var(--csa-primary);
  left: 0;
  transition: transform var(--transition-fast);
}

.nav__toggle-icon::before {
  top: -8px;
}

.nav__toggle-icon::after {
  bottom: -8px;
}

@media (max-width: 768px) {
  .nav__toggle {
    display: block;
  }

  .header__nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    flex-direction: column;
    padding: var(--space-2xl) var(--space-md);
    transform: translateX(-100%);
    transition: transform var(--transition-fast);
  }

  .header__nav.is-open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    width: 100%;
  }
}

/* Breadcrumbs */
.breadcrumbs {
  padding: var(--space-sm) 0;
  max-width: 1400px;
  margin: 0 auto;
}

.breadcrumbs__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 0 var(--space-md);
}

.breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.breadcrumbs__item:not(:last-child)::after {
  content: '›';
  color: var(--csa-neutral);
}

.breadcrumbs__link {
  color: var(--csa-primary);
  font-size: 0.875rem;
}

.breadcrumbs__current {
  color: var(--csa-accent-2);
  font-size: 0.875rem;
}

/* Contenedor principal */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: 900px;
}

.section {
  padding: var(--space-2xl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section__title {
  color: var(--csa-primary);
  margin-bottom: var(--space-sm);
}

.section__subtitle {
  color: var(--csa-accent-2);
  font-size: 1.125rem;
}

/* Botones */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-size: 1rem;
}

.btn:focus-visible {
  outline: 3px solid var(--csa-accent);
  outline-offset: 2px;
}

.btn--primary {
  background-color: var(--csa-accent);
  color: var(--csa-primary);
}

.btn--primary:hover {
  background-color: #e5b830;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
}

.btn--secondary {
  background-color: white;
  color: var(--csa-primary);
  border-color: var(--csa-neutral);
}

.btn--secondary:hover {
  border-color: var(--csa-accent-2);
  text-decoration: none;
}

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

.btn--outline:hover {
  background-color: var(--csa-accent);
  text-decoration: none;
}

/* Tarjetas */
.card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-md);
  transition: all var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: calc(var(--radius) / 2);
  margin-bottom: var(--space-sm);
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.card__text {
  color: #555;
  margin-bottom: var(--space-sm);
}

.card__link {
  color: var(--csa-link);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Badge */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  background-color: var(--csa-accent-2);
  color: white;
}

.badge--accent {
  background-color: var(--csa-accent);
  color: var(--csa-primary);
}

.badge--primary {
  background-color: var(--csa-primary);
  color: white;
}

/* Tablas */
.table-wrapper {
  overflow-x: auto;
  margin: var(--space-md) 0;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.table caption {
  font-weight: 700;
  padding: var(--space-sm);
  text-align: left;
  background-color: var(--csa-accent-2);
  color: white;
}

.table th,
.table td {
  padding: var(--space-sm);
  text-align: left;
  border-bottom: 1px solid var(--csa-surface);
}

.table th {
  background-color: var(--csa-surface);
  font-weight: 600;
}

.table tbody tr:hover {
  background-color: rgba(246, 199, 64, 0.1);
}

/* Acordeón */
.accordion {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.accordion__item {
  border-bottom: 1px solid var(--csa-surface);
}

.accordion__item:last-child {
  border-bottom: none;
}

.accordion__header {
  width: 100%;
  padding: var(--space-md);
  background: none;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-fast);
}

.accordion__header:hover {
  background-color: var(--csa-surface);
}

.accordion__header:focus-visible {
  outline: 3px solid var(--csa-accent);
  outline-offset: -3px;
}

.accordion__icon {
  transition: transform var(--transition-fast);
}

.accordion__header[aria-expanded="true"] .accordion__icon {
  transform: rotate(180deg);
}

.accordion__content {
  padding: 0 var(--space-md);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-fast);
}

.accordion__content.is-open {
  max-height: 1000px;
  padding: var(--space-md);
}

/* Tabs */
.tabs {
  margin: var(--space-md) 0;
}

.tabs__list {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 2px solid var(--csa-surface);
  list-style: none;
  margin-bottom: var(--space-md);
}

.tabs__tab {
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--csa-primary);
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
}

.tabs__tab:hover {
  background-color: var(--csa-surface);
}

.tabs__tab[aria-selected="true"] {
  color: var(--csa-accent-3);
  border-bottom-color: var(--csa-accent);
}

.tabs__panel {
  display: none;
}

.tabs__panel.is-active {
  display: block;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  padding: var(--space-md);
  overflow-y: auto;
}

.modal.is-open {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__content {
  background: white;
  border-radius: var(--radius);
  max-width: 600px;
  width: 100%;
  padding: var(--space-lg);
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal__close {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--csa-primary);
  padding: var(--space-xs);
  line-height: 1;
}

.modal__close:hover {
  color: var(--csa-accent-3);
}

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--csa-primary);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--csa-neutral);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-system);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--csa-accent);
}

.form-input.error,
.form-textarea.error {
  border-color: #d32f2f;
}

.form-error {
  color: #d32f2f;
  font-size: 0.875rem;
  margin-top: var(--space-xs);
}

.form-help {
  color: #666;
  font-size: 0.875rem;
  margin-top: var(--space-xs);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--csa-accent-2) 0%, var(--csa-accent-3) 100%);
  color: white;
  padding: var(--space-2xl) 0;
  text-align: center;
}

.hero__title {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  color: white;
}

.hero__subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
  opacity: 0.95;
}

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

@media (max-width: 768px) {
  .hero__title {
    font-size: 2rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }
}

/* Footer */
.footer {
  background-color: var(--csa-primary);
  color: white;
  padding: var(--space-xl) 0 var(--space-md);
  margin-top: var(--space-2xl);
}

.footer__content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer__section h3 {
  color: var(--csa-accent);
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.footer__section p,
.footer__section a {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xs);
}

.footer__section a:hover {
  color: var(--csa-accent);
}

.footer__nav-list {
  list-style: none;
}

.footer__nav-item {
  margin-bottom: var(--space-xs);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-md);
  text-align: center;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

/* Utilidades */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Animaciones */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

.fade-in {
  animation: fadeIn var(--transition-fast);
}

.slide-up {
  animation: slideUp var(--transition-fast);
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --space-xl: 40px;
    --space-2xl: 48px;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
}

@media (max-width: 768px) {
  :root {
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 40px;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}