/* admin-fab.css — Admin Mode floating action button (FAB)
   ============================================================================
   Visual: matches .inline-header-btn from style.css — same dark-purple glassy
   gradient, same border, same shimmer sweep on hover. Sits in the bottom-right
   corner of every page, visible only when admin.

   Author: Code | date: 2026-05-10 | Mode 1 baseline (v1.6.0)
   ============================================================================ */

#admin-fab-root {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  pointer-events: auto;
  font-family: 'Montserrat', sans-serif;
}

#admin-fab-root.admin-fab-hidden {
  display: none;
}

#admin-fab-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 12px;
  color: rgba(245, 242, 255, 0.96);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, rgba(110, 50, 195, 0.97), rgba(55, 0, 95, 1.0));
  border: 1px solid rgba(187, 134, 252, 0.55);
  box-shadow:
    0 10px 22px rgba(0, 0, 0, 0.28),
    0 0 0 rgba(187, 134, 252, 0);
  cursor: pointer;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease,
    filter 0.18s ease;
}

#admin-fab-button::before {
  content: "";
  position: absolute;
  inset: -70%;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(
    115deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.06) 38%,
    rgba(255, 255, 255, 0.22) 50%,
    rgba(255, 255, 255, 0.06) 62%,
    rgba(255, 255, 255, 0) 100%
  );
  opacity: 0.35;
  transform: translate3d(-45%, 0, 0) rotate(10deg);
  filter: blur(10px);
  will-change: transform, opacity;
  transition: opacity 0.18s ease, transform 0.45s ease;
}

#admin-fab-button:hover {
  transform: translateY(-2px) scale(1.04);
  border-color: rgba(187, 134, 252, 0.72);
  box-shadow:
    0 16px 30px rgba(0, 0, 0, 0.36),
    0 0 18px rgba(187, 134, 252, 0.55);
  filter: brightness(1.06);
}

#admin-fab-button:hover::before {
  opacity: 0.70;
  transform: translate3d(15%, 0, 0) rotate(10deg);
}

#admin-fab-button:active {
  transform: translateY(0) scale(0.99);
}

#admin-fab-button:focus-visible {
  outline: 2px solid rgba(187, 134, 252, 0.92);
  outline-offset: 2px;
}

#admin-fab-button svg {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.admin-fab-label {
  position: relative;
  z-index: 1;
}

.admin-fab-menu {
  display: flex;
  flex-direction: column;
  min-width: 260px;
  max-width: 320px;
  padding: 10px;
  background: linear-gradient(180deg, rgba(40, 18, 70, 0.92), rgba(20, 6, 38, 0.96));
  border: 1px solid rgba(187, 134, 252, 0.42);
  border-radius: 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow:
    0 16px 48px rgba(0, 0, 0, 0.50),
    0 0 24px rgba(187, 134, 252, 0.20);
  transform-origin: bottom right;
  animation: admin-fab-menu-in 0.18s ease;
}

.admin-fab-menu-hidden {
  display: none;
}

@keyframes admin-fab-menu-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.admin-fab-menu-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #bb86fc;
  padding: 8px 12px 12px;
  border-bottom: 1px solid rgba(187, 134, 252, 0.18);
  margin-bottom: 6px;
  font-family: 'Montserrat', sans-serif;
}

.admin-fab-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 10px;
  letter-spacing: 0.05em;
  color: #cfc7d9;
  font-weight: 500;
}

.admin-fab-menu-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  margin: 2px 0;
  border-radius: 10px;
  text-align: left;
  color: #efe7ff;
  background: transparent;
  border: 1px solid transparent;
  font-family: inherit;
  cursor: pointer;
  transition:
    background 0.14s ease,
    border-color 0.14s ease,
    transform 0.14s ease;
}

.admin-fab-menu-item:hover {
  background: linear-gradient(180deg, rgba(140, 70, 220, 0.22), rgba(70, 0, 110, 0.32));
  border-color: rgba(187, 134, 252, 0.42);
}

.admin-fab-menu-item:focus-visible {
  outline: 2px solid #ffd6ff;
  outline-offset: 1px;
}

.admin-fab-menu-item:active {
  transform: scale(0.99);
}

.admin-fab-menu-item-label {
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.01em;
  font-family: 'Montserrat', sans-serif;
}

.admin-fab-menu-item-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 11px;
  color: #bb86fc;
  letter-spacing: 0.04em;
  font-weight: 500;
  white-space: nowrap;
}

@media (max-width: 700px) {
  #admin-fab-root {
    bottom: 16px;
    right: 16px;
  }
  #admin-fab-button {
    padding: 8px 12px;
    font-size: 0.9rem;
  }
  .admin-fab-menu {
    min-width: 240px;
    max-width: calc(100vw - 32px);
  }
}

@media (prefers-reduced-motion: reduce) {
  #admin-fab-button,
  #admin-fab-button::before,
  .admin-fab-menu-item {
    transition: none !important;
  }
  .admin-fab-menu {
    animation: none;
  }
}