/* Sidebar widgets, header banner, newsletter popup — fluid multi-viewport */

.urdfw-header-banner {
  container-type: inline-size;
  container-name: urdfw-banner;
  width: 100%;
  background: linear-gradient(90deg, #0369a1 0%, #0c4a6e 100%);
  color: #f8fafc;
  font-size: clamp(0.75rem, 2.2vw, 0.875rem);
  line-height: 1.4;
}

.urdfw-header-banner__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(0.5rem, 2vw, 1rem);
  padding: clamp(0.5rem, 2vw, 0.75rem) var(--urdfw-gutter, 1rem);
  max-width: 1536px;
  margin: 0 auto;
}

.urdfw-header-banner__inner > * {
  flex: 0 1 auto;
  min-width: 0;
}

@container urdfw-banner (max-width: 480px) {
  .urdfw-header-banner__inner {
    flex-direction: column;
    text-align: center;
  }
  .urdfw-header-banner__inner a,
  .urdfw-header-banner__inner button {
    width: 100%;
    max-width: 280px;
  }
}

.urdfw-sidebar-widgets {
  container-type: inline-size;
  container-name: urdfw-sidebar;
  display: grid;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  grid-template-columns: 1fr;
  min-width: 0;
}

.urdfw-sidebar-widgets .urdfw-widget-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: clamp(0.75rem, 2.5vw, 1rem);
  min-width: 0;
  overflow-wrap: anywhere;
}

@container urdfw-sidebar (min-width: 200px) {
  .urdfw-sidebar-widgets--multi {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 160px), 1fr));
  }
}

.urdfw-page-with-sidebar {
  display: grid;
  gap: clamp(1rem, 3vw, 2rem);
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 768px) {
  .urdfw-page-with-sidebar {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 280px);
  }
}

@media (min-width: 1024px) {
  .urdfw-page-with-sidebar {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  }
}

@media (max-width: 767px) {
  .urdfw-sidebar-widgets {
    order: 2;
  }
  .urdfw-page-with-sidebar > :not(.urdfw-sidebar-widgets) {
    order: 1;
  }
}

/* IO sentinel — off-screen, no layout impact */
.urdfw-nl-io-sentinel {
  position: absolute;
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
  visibility: hidden;
  overflow: hidden;
}

/* Newsletter popup — container-relative fluid layout */
.urdfw-nl-popup {
  container-type: size;
  container-name: nl-overlay;
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: max(0.75rem, env(safe-area-inset-top))
    max(0.75rem, env(safe-area-inset-right))
    max(0.75rem, env(safe-area-inset-bottom))
    max(0.75rem, env(safe-area-inset-left));
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.urdfw-nl-popup.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.urdfw-nl-popup.is-fading {
  opacity: 0;
  pointer-events: none;
}

.urdfw-nl-popup__card {
  container-type: inline-size;
  container-name: nl-popup;
  position: relative;
  width: min(92cqw, 26rem, 100%);
  max-height: min(88cqh, 85dvh);
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  background: #fff;
  border-radius: clamp(0.875rem, 3cqw, 1.25rem);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  padding: clamp(1rem, 5cqi, 1.75rem);
  padding-top: clamp(1.25rem, 6cqi, 2rem);
  transform: translateY(1rem);
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-sizing: border-box;
}

.urdfw-nl-popup.is-visible .urdfw-nl-popup__card {
  transform: translateY(0);
}

.urdfw-nl-popup.is-fading .urdfw-nl-popup__card {
  transform: translateY(0.5rem);
  opacity: 0.85;
}

.urdfw-nl-popup__title {
  font-size: clamp(1.05rem, 4.5cqi + 0.5rem, 1.375rem);
  line-height: 1.25;
  font-weight: 600;
  color: #0f172a;
  margin: 0 0 clamp(0.25rem, 1.5cqi, 0.5rem);
  padding-right: 2.5rem;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.urdfw-nl-popup__subtitle {
  font-size: clamp(0.8rem, 3.2cqi + 0.35rem, 0.9375rem);
  line-height: 1.45;
  color: #64748b;
  margin: 0 0 clamp(0.75rem, 3cqi, 1rem);
  overflow-wrap: anywhere;
}

.urdfw-nl-popup__form {
  display: flex;
  flex-direction: column;
  gap: clamp(0.4rem, 2cqi, 0.65rem);
}

@container nl-popup (min-width: 20rem) {
  .urdfw-nl-popup__form--row {
    flex-direction: row;
    align-items: stretch;
  }
  .urdfw-nl-popup__form--row input {
    flex: 1 1 55%;
    min-width: 0;
  }
  .urdfw-nl-popup__form--row button[type="submit"] {
    flex: 0 1 auto;
  }
}

.urdfw-nl-popup__form input[type="email"] {
  border: 1px solid #cbd5e1;
  border-radius: clamp(0.5rem, 2cqi, 0.75rem);
  padding: clamp(0.55rem, 2.5cqi, 0.7rem) clamp(0.65rem, 3cqi, 0.85rem);
  font-size: clamp(0.875rem, 3.5cqi, 1rem);
  min-height: 2.75rem;
  width: 100%;
  box-sizing: border-box;
}

.urdfw-nl-popup__form button[type="submit"] {
  min-height: 2.75rem;
  border-radius: clamp(0.5rem, 2cqi, 0.75rem);
  background: #0369a1;
  color: #fff;
  font-weight: 600;
  font-size: clamp(0.8125rem, 3.2cqi, 0.9375rem);
  padding: clamp(0.55rem, 2.5cqi, 0.7rem) clamp(0.85rem, 4cqi, 1.1rem);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.urdfw-nl-popup__dismiss {
  margin-top: clamp(0.5rem, 2.5cqi, 0.85rem);
  font-size: clamp(0.7rem, 2.8cqi, 0.8125rem);
  color: #94a3b8;
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  width: 100%;
  text-align: center;
  min-height: 2.25rem;
}

.urdfw-nl-popup__close {
  position: absolute;
  top: clamp(0.5rem, 2cqi, 0.75rem);
  right: clamp(0.5rem, 2cqi, 0.75rem);
  width: clamp(2rem, 8cqi, 2.25rem);
  height: clamp(2rem, 8cqi, 2.25rem);
  border: none;
  background: #f1f5f9;
  border-radius: 999px;
  cursor: pointer;
  font-size: clamp(1rem, 4cqi, 1.125rem);
  line-height: 1;
  color: #475569;
  flex-shrink: 0;
}

@container nl-overlay (min-height: 28rem) {
  .urdfw-nl-popup {
    align-items: center;
  }
}

@media (min-width: 640px) {
  .urdfw-nl-popup {
    align-items: center;
  }
}

@media (max-width: 359px) {
  .urdfw-nl-popup__card {
    width: 100%;
    max-height: 90dvh;
    border-radius: 1rem 1rem 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .urdfw-nl-popup,
  .urdfw-nl-popup__card {
    transition: none;
  }
}