/* ============================================
   UTILIDADES Y COMPONENTES BASE
   Clases reutilizables en todo el proyecto
   ============================================ */

/* -------------------------------------------
   CONTENEDORES
------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container--sm  { max-width: var(--container-sm); }
.container--md  { max-width: var(--container-md); }
.container--lg  { max-width: var(--container-lg); }
.container--2xl { max-width: var(--container-2xl); }

/* -------------------------------------------
   GRID SYSTEM
------------------------------------------- */

.grid {
  display: grid;
  gap: var(--space-6);
}

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

.grid--auto-sm {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.grid--auto-md {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}
.grid--auto-lg {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

/* -------------------------------------------
   FLEXBOX HELPERS
------------------------------------------- */

.flex          { display: flex; }
.flex-col      { flex-direction: column; }
.flex-wrap     { flex-wrap: wrap; }
.items-center  { align-items: center; }
.items-start   { align-items: flex-start; }
.items-end     { align-items: flex-end; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }
.gap-2  { gap: var(--space-2); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }

/* -------------------------------------------
   SECCIONES
------------------------------------------- */

.section {
  padding-block: var(--space-24);
}

.section--sm {
  padding-block: var(--space-16);
}

.section--lg {
  padding-block: var(--space-32);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-teal-light);
  background: rgba(39, 192, 208, 0.1);
  border: 1px solid rgba(39, 192, 208, 0.25);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
  line-height: var(--leading-relaxed);
  max-width: 60ch;
  margin-inline: auto;
}

/* -------------------------------------------
   BOTONES
------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-spring);
  text-decoration: none;
  white-space: nowrap;
  border: 2px solid transparent;
}

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

/* Primario - Teal */
.btn--primary {
  background: var(--gradient-teal);
  color: var(--color-white);
  box-shadow: var(--shadow-teal);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(39, 192, 208, 0.45);
  color: var(--color-white);
}

.btn--primary:active {
  transform: translateY(0);
}

/* Secundario - Orange */
.btn--secondary {
  background: var(--gradient-orange);
  color: var(--color-white);
  box-shadow: var(--shadow-orange);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(222, 105, 28, 0.45);
  color: var(--color-white);
}

/* Outline - Teal */
.btn--outline {
  background: transparent;
  color: var(--color-teal-dark);
  border-color: var(--color-teal-light);
}

.btn--outline:hover {
  background: var(--color-teal-light);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* Ghost */
.btn--ghost {
  background: rgba(39, 192, 208, 0.08);
  color: var(--color-teal-dark);
}

.btn--ghost:hover {
  background: rgba(39, 192, 208, 0.15);
  transform: translateY(-1px);
}

/* Tamaños */
.btn--sm {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-5);
}

.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-5) var(--space-10);
}

/* -------------------------------------------
   TARJETAS (CARDS)
------------------------------------------- */

.card {
  background: var(--color-white);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

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

.card--gradient {
  background: var(--gradient-card);
  border-color: rgba(39, 192, 208, 0.15);
}

.card--dark {
  background: var(--color-dark);
  border-color: rgba(39, 192, 208, 0.15);
  color: var(--color-white);
}

.card--dark p { color: var(--color-gray-400); }

/* -------------------------------------------
   BADGES / ETIQUETAS
------------------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-wide);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.badge--teal {
  background: rgba(39, 192, 208, 0.12);
  color: var(--color-teal-dark);
}

.badge--orange {
  background: rgba(245, 167, 61, 0.15);
  color: var(--color-orange);
}

/* -------------------------------------------
   TEXTO DE ACENTO (HIGHLIGHT)
------------------------------------------- */

.text-gradient {
  background: var(--gradient-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient--orange {
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient--hero {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* -------------------------------------------
   DIVISORES DECORATIVOS
------------------------------------------- */

.divider {
  width: 60px;
  height: 4px;
  background: var(--gradient-teal);
  border-radius: var(--radius-full);
  margin-block: var(--space-6);
}

.divider--center { margin-inline: auto; }
.divider--orange { background: var(--gradient-orange); }

/* -------------------------------------------
   FONDOS DE SECCIÓN
------------------------------------------- */

.bg-light  { background-color: var(--color-off-white); }
.bg-dark   { background-color: var(--color-dark); }
.bg-teal   { background: var(--gradient-teal); }
.bg-orange { background: var(--gradient-orange); }

/* -------------------------------------------
   UTILIDADES DE TEXTO
------------------------------------------- */

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

.text-xs   { font-size: var(--text-xs); }
.text-sm   { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg   { font-size: var(--text-lg); }
.text-xl   { font-size: var(--text-xl); }

.font-bold     { font-weight: var(--font-bold); }
.font-semibold { font-weight: var(--font-semibold); }
.font-medium   { font-weight: var(--font-medium); }

.color-teal   { color: var(--color-teal-light); }
.color-orange { color: var(--color-orange); }
.color-dark   { color: var(--color-dark); }
.color-muted  { color: var(--color-gray-600); }

/* -------------------------------------------
   ANIMACIONES BASE
------------------------------------------- */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(39, 192, 208, 0.3);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(39, 192, 208, 0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.animate-pulse-glow {
  animation: pulse-glow 2.5s infinite;
}

/* -------------------------------------------
   RESPONSIVE: OCULTAR/MOSTRAR
------------------------------------------- */

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .hide-mobile { display: none !important; }

  .section {
    padding-block: var(--space-16);
  }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

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

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* -------------------------------------------
   PREFERENCIA DE MOVIMIENTO REDUCIDO
   Accesibilidad: respeta configuración del sistema
------------------------------------------- */

@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;
  }
}