@charset "utf-8";

[hidden] {
  display: none !important;
}

.filter-btn {
  padding: 8px 18px;
  border: 1px solid var(--fedl-border);
  border-radius: 20px;
  background: var(--fedl-surface-muted);
  color: var(--fedl-text);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  user-select: none;
}

.filter-btn:hover {
  background: var(--fedl-surface-subtle);
  border-color: var(--fedl-border-strong);
  color: var(--fedl-text-dark);
}

.filter-btn.active,
.filter-btn[aria-pressed="true"] {
  background: var(--fedl-blue);
  border-color: var(--fedl-blue);
  color: var(--fedl-surface);
}

.error-msg,
.layout-error {
  margin: 20px auto;
  padding: 12px 16px;
  color: #9b2c2c;
  background: #fff5f5;
  border: 1px solid #feb2b2;
  border-radius: var(--fedl-radius-md);
}

.loading-text {
  font-size: 14px;
  color: var(--fedl-text-light);
}

.filter-container,
.filter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-container {
  margin-bottom: 25px;
}

.back-to-top {
  --back-to-top-footer-offset: 0px;
  position: fixed;
  right: 24px;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px) + var(--back-to-top-footer-offset));
  z-index: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 50%;
  background: rgba(14, 66, 109, 0.9);
  color: var(--fedl-surface);
  box-shadow: 0 6px 18px rgba(12, 51, 84, 0.24);
  font: inherit;
  font-size: 23px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease, background-color 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top.is-visible:hover {
  background: var(--fedl-dark-blue);
  transform: translateY(-2px);
}

.back-to-top:focus-visible {
  outline: 3px solid rgba(14, 66, 109, 0.35);
  outline-offset: 3px;
}

@media (max-width: 600px) {
  .back-to-top {
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px) + var(--back-to-top-footer-offset));
    width: 44px;
    height: 44px;
    font-size: 21px;
  }
}

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