/* Global Layout & Utilities */

.skip-link {
  position: absolute;
  top: -100px;
  left: 1.5rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-orange);
  color: var(--color-white);
  font-weight: 700;
  border-radius: var(--radius-badge);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1.5rem;
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

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

.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;
}

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

/* Base Body Surface */
body {
  background-color: var(--color-white);
  color: var(--color-white);
  min-height: 100vh;
  position: relative;
}

/* Floating Back to Top Button */
.floating-back-to-top {
  position: fixed !important;
  bottom: 24px !important;
  right: 24px !important;
  width: 48px !important;
  height: 48px !important;
  border-radius: 50% !important;
  background: #ff5722 !important;
  color: #ffffff !important;
  border: none !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  box-shadow: 0 6px 20px rgba(255, 87, 34, 0.45), 0 4px 12px rgba(0, 0, 0, 0.4) !important;
  z-index: 99999 !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
  transform: translateY(16px) !important;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background-color 0.2s ease, box-shadow 0.2s ease !important;
}

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

.floating-back-to-top:hover {
  background-color: #f4511e !important;
  transform: translateY(-3px) scale(1.06) !important;
  box-shadow: 0 10px 24px rgba(255, 87, 34, 0.55), 0 6px 16px rgba(0, 0, 0, 0.45) !important;
}

.floating-back-to-top svg {
  width: 22px !important;
  height: 22px !important;
  stroke: currentColor !important;
  stroke-width: 2.5 !important;
  fill: none !important;
}

@media (max-width: 600px) {
  .floating-back-to-top {
    bottom: calc(18px + env(safe-area-inset-bottom, 0px)) !important;
    right: calc(18px + env(safe-area-inset-right, 0px)) !important;
    width: 44px !important;
    height: 44px !important;
  }
}