/**
 * APERAT - Componentes Reutilizables y Estructuras Modulares (Modern UI/UX)
 */

/* ==========================================================================
   1. Barra Superior (Topbar)
   ========================================================================== */
.topbar {
  background: linear-gradient(90deg, #01223e 0%, var(--color-primary) 50%, #034b85 100%);
  color: var(--color-white);
  font-family: var(--font-sans-body);
  font-size: 0.8125rem;
  line-height: 1;
  padding: 11px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: calc(var(--z-header) + 1);
}

.topbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.topbar__contacts {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.topbar__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #e2ecf5;
  transition: all var(--transition-fast);
  padding: 2px 0;
}

.topbar__item:hover {
  color: #7fe1ff;
  transform: translateY(-1px);
}

.topbar__icon {
  width: 14px;
  height: 14px;
  fill: var(--color-secondary-light);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.topbar__item:hover .topbar__icon {
  transform: scale(1.15);
}

.topbar__location {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #d1e2ef;
}

/* ==========================================================================
   2. Navegación Principal (Header & Navbar) con Glassmorphism
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  z-index: var(--z-header);
  transition: box-shadow var(--transition-normal), background-color var(--transition-normal), border-bottom var(--transition-normal);
  border-bottom: 1px solid rgba(2, 54, 96, 0.06);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.97);
  box-shadow: 0 10px 30px -10px rgba(2, 54, 96, 0.12);
  border-bottom: 1px solid rgba(7, 165, 214, 0.18);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-nav-height);
  padding: 0 10px;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.navbar__brand-link {
  display: inline-flex;
  align-items: center;
}

.navbar__logo {
  height: 36px;
  width: auto;
  transition: transform var(--transition-fast);
}

.navbar__logo:hover {
  transform: scale(1.02);
}

.navbar__divider {
  width: 1px;
  height: 28px;
  background-color: rgba(2, 54, 96, 0.12);
  margin: 0 4px;
  flex-shrink: 0;
}

.navbar__menu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
  flex: 1;
  min-width: 0;
}

.navbar__list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.navbar__item {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  font-family: var(--font-sans-title);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.015em;
  white-space: nowrap;
  padding: 8px 6px;
  position: relative;
  background-color: transparent;
  transition: color var(--transition-fast);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 12px;
  right: 12px;
  height: 2.5px;
  border-radius: 2px;
  background-color: var(--color-secondary-dark);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.navbar__link:hover {
  color: var(--color-secondary-dark);
  background-color: transparent;
}

.navbar__link:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.navbar__link.active {
  color: var(--color-secondary-dark);
  background-color: transparent;
}

.navbar__link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.navbar__separator {
  display: none;
  width: 1px;
  height: 20px;
  background-color: rgba(2, 54, 96, 0.1);
  margin: 0 4px;
}

.navbar__socials {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 4px;
  flex-shrink: 0;
}

.navbar__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: var(--color-secondary-tint);
  color: var(--color-secondary-dark);
  transition: all var(--transition-fast);
  border: 1px solid rgba(7, 165, 214, 0.2);
}

.navbar__social-link svg {
  width: 15px;
  height: 15px;
  fill: var(--color-secondary-action);
  transition: fill var(--transition-fast);
}

.navbar__social-link:hover {
  transform: translateY(-2px);
  background: var(--gradient-secondary);
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.navbar__social-link:hover svg {
  fill: var(--color-white);
}

.navbar__cta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 0;
  flex-shrink: 0;
}

/* Selector de Idioma (ES / EN) Moderno */
.lang-switch {
  display: inline-flex;
  align-items: center;
  background: rgba(2, 54, 96, 0.05);
  border: 1px solid rgba(2, 54, 96, 0.12);
  border-radius: var(--radius-pill);
  padding: 3px 5px;
  font-family: var(--font-sans-title);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  gap: 2px;
}

.lang-switch__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  min-width: 32px;
  padding: 5px 9px;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
  line-height: 1.2;
}

.lang-switch__btn:hover {
  color: var(--color-primary);
}

.lang-switch__btn.is-active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 6px rgba(2, 54, 96, 0.2);
  cursor: default;
}

.lang-switch__divider {
  color: rgba(2, 54, 96, 0.25);
  font-size: 0.7rem;
  user-select: none;
}

/* Botón Hamburguesa Móvil Moderno con área táctil accesible (WCAG 2.1 AA) */
.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 44px;
  height: 44px;
  padding: 10px 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-header) + 1);
  border-radius: var(--radius-sm);
}

.navbar__toggle-bar {
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.navbar__toggle.is-active .navbar__toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.navbar__toggle.is-active .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.is-active .navbar__toggle-bar:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ==========================================================================
   3. Botones y Llamados a la Acción Modernos
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-sans-title);
  font-weight: 700;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
  text-align: center;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn span {
  color: inherit;
}

.btn-primary {
  background: var(--gradient-secondary);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.65s ease;
}

.btn-primary:hover::after {
  left: 120%;
}

.btn-primary:hover {
  background: var(--gradient-secondary-hover);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
}

.btn-donar {
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-size: 0.8125rem;
  line-height: 1.4;
}

.btn-icon-heart {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.btn-donar:hover .btn-icon-heart {
  transform: scale(1.2);
}

.btn-dark {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(2, 54, 96, 0.25);
}

.btn-dark:hover {
  background: linear-gradient(135deg, #011f38 0%, #023660 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 54, 96, 0.4);
}

.btn-outline-white,
.btn-outline-white span {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.btn-outline-white span {
  background-color: transparent;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.btn-outline-white:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

.btn-hero-primary {
  border-radius: var(--radius-pill);
  padding: 14px 34px;
}

.btn-hero-secondary {
  border-radius: var(--radius-pill);
  padding: 14px 30px;
}

.btn-arrow {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-pill {
  border-radius: var(--radius-pill);
}

/* Botón Magnético Moderno (Estilo Pill con círculo de flecha) */
.btn-magnetic {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans-title);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-secondary-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 18px 10px 4px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.btn-magnetic__text {
  color: var(--color-secondary-dark);
}

.btn-magnetic__arrow {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-secondary-tint);
  color: var(--color-secondary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  border: 1px solid rgba(7, 165, 214, 0.2);
}

.btn-magnetic__arrow svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.btn-magnetic:hover {
  color: var(--color-secondary-dark);
}

.btn-magnetic:hover .btn-magnetic__arrow {
  background: var(--gradient-secondary);
  color: var(--color-white);
  transform: translateX(4px) scale(1.08);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

/* Tag de sección overline (Alto contraste accesible WCAG AA/AAA) */
.section-tag {
  display: inline-block;
  font-family: var(--font-sans-title);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #024b75;
  background-color: var(--color-secondary-tint);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  border: 1px solid rgba(7, 165, 214, 0.35);
}

/* ==========================================================================
   4. Títulos y Encabezados de Sección Modernos
   ========================================================================== */
.section-header {
  text-align: center;
  margin-bottom: 55px;
}

.section-header__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-secondary-tint);
  margin-bottom: 16px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(7, 165, 214, 0.25);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.section-header:hover .section-header__badge {
  transform: scale(1.08) rotate(4deg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.section-header__badge-icon {
  width: 28px;
  height: 28px;
}

.section-header__title {
  font-family: var(--font-sans-title);
  font-size: clamp(2.1rem, 3.6vw, 2.85rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

.section-header__subtitle {
  font-family: var(--font-sans-body);
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.65;
}

/* ==========================================================================
   5. Adorno Geométrico Bicolor del Hero (Diseño Oficial APERAT)
   ========================================================================== */
.hero-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  z-index: 3;
  pointer-events: none;
}

.hero-divider svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: clamp(34px, 3.2vw, 54px);
}

/* ==========================================================================
   6. Modal de Donación con Glassmorphism
   ========================================================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(1, 15, 28, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  padding: 20px;
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal__dialog {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 580px;
  max-height: calc(100vh - 40px);
  max-height: calc(100dvh - 40px);
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transform: translateY(24px) scale(0.96);
  transition: transform var(--transition-normal);
}

.modal.is-open .modal__dialog {
  transform: translateY(0) scale(1);
}

.modal__header {
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 24px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal__title {
  font-family: var(--font-sans-title);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
}

.modal__close {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background-color: rgba(255, 255, 255, 0.25);
  transform: rotate(90deg);
}

.modal__body {
  padding: 30px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.modal__tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  background: #f0f4f8;
  padding: 6px;
  border-radius: var(--radius-pill);
  overflow-x: auto;
}

.modal__tab-btn {
  flex: 1;
  min-height: 44px;
  padding: 10px 16px;
  font-family: var(--font-sans-title);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
}

.modal__tab-btn.active {
  background: var(--gradient-secondary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.modal__tab-content {
  display: none;
  animation: fadeIn 0.28s ease;
}

.modal__tab-content.active {
  display: block;
  visibility: visible;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal__intro {
  margin-bottom: 20px;
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.modal__card {
  background: var(--color-bg-alt);
  padding: 20px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  border: 1px solid var(--color-border-light);
}

.modal__card--center {
  text-align: center;
}

.modal__card--notice {
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  padding: 22px 18px;
}

.modal__card-label {
  font-family: var(--font-sans-title);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.modal__card-value {
  font-size: 1.25rem;
  font-family: monospace;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.modal__card-sub {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.modal__card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

.modal__badge-notice {
  display: inline-block;
  background: rgba(185, 28, 28, 0.08);
  color: #b91c1c;
  font-family: var(--font-sans-title);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.modal__btn-copy {
  min-height: 44px;
  font-size: 0.8125rem;
  padding: 8px 18px;
}

.btn-copy.is-error {
  background: #8f1d1d;
  color: var(--color-white);
}

.modal__btn-donate {
  display: inline-flex;
}

/* ==========================================================================
   7. Botón Scroll to Top Moderno con Glassmorphism
   ========================================================================== */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(2, 54, 96, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(2, 54, 96, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.25);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.scroll-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background: var(--gradient-secondary);
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.scroll-top-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}