/* Sort • Filter • Find Panel (Phase 1 minimal styles) */
/* assistant-change: sff_init */
:root {
  --sff-bg-light: #ffffff;
  --sff-fg-light: #000000;
  --sff-border-light: #d0d0d0;
  --sff-bg-dark: #000000;
  --sff-fg-dark: #ffffff;
  --sff-border-dark: #333333;
}
body.sff-open {
  overflow: hidden;
}
#sff-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
  z-index: 1400;
}
#sff-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 360px;
  max-width: 90vw;
  height: 100%;
  background: var(--sff-bg, #fff);
  color: var(--sff-fg, #000);
  border-left: 1px solid var(--sff-border, #d0d0d0);
  transform: translateX(100%);
  transition: transform 0.2s ease;
  z-index: 1500;
  display: flex;
  flex-direction: column;
  font:
    14px/1.4 system-ui,
    Arial,
    sans-serif;
}
body.sff-open #sff-backdrop {
  opacity: 1;
  pointer-events: auto;
}
body.sff-open #sff-panel {
  transform: translateX(0);
}
#sff-panel header {
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--sff-border, #d0d0d0);
}
#sff-panel header h2 {
  font-size: 15px;
  margin: 0;
  font-weight: 600;
}
#sff-panel .sff-body {
  flex: 1;
  overflow-y: auto;
  padding: 12px 14px 60px;
}
#sff-panel .sff-toolbar {
  padding: 8px 14px 4px;
  border-bottom: 1px solid var(--sff-border, #d0d0d0);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sff-search-wrap {
  display: flex;
  gap: 6px;
}
.sff-search-wrap input[type="search"] {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--sff-border, #d0d0d0);
  border-radius: 4px;
}
.sff-search-wrap select {
  padding: 6px 8px;
  border: 1px solid var(--sff-border, #d0d0d0);
  border-radius: 4px;
}
#sff-panel footer {
  position: sticky;
  bottom: 0;
  background: inherit;
  border-top: 1px solid var(--sff-border, #d0d0d0);
  padding: 10px 14px;
  display: flex;
  gap: 8px;
}
#sff-panel footer {
  justify-content: space-between;
}
.sff-footer-buttons {
  display: flex;
  gap: 8px;
}
.sff-status {
  font-size: 11px;
  opacity: 0.75;
}
#sff-panel button {
  cursor: pointer;
}
.sff-trigger-btn {
  position: fixed;
  left: 10px;
  top: 74px;
  z-index: 1300;
  background: #111;
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}
.sff-group {
  margin-bottom: 16px;
}
.sff-group h3 {
  font-size: 13px;
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.sff-options {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sff-option {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}
body.theme-dark #sff-panel {
  --sff-bg: var(--sff-bg-dark);
  --sff-fg: var(--sff-fg-dark);
  --sff-border: var(--sff-border-dark);
}
body.theme-light #sff-panel,
body:not(.theme-dark) #sff-panel {
  --sff-bg: var(--sff-bg-light);
  --sff-fg: var(--sff-fg-light);
  --sff-border: var(--sff-border-light);
}

/* A11y: visually hidden utility (non-display impacting, still screen-reader reachable) */
.sff-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Chips bar */
#sff-chips {
  margin: 8px 0 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sff-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sff-chip,
.sff-chip-clear {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 16px;
  padding: 4px 10px;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
}
.sff-chip:hover {
  background: #e2e8f0;
}
.sff-chip-clear {
  background: #1d4ed8;
  color: #fff;
  border-color: #1d4ed8;
}
.sff-chip-clear:hover {
  background: #1e40af;
}

/* Focus outline */
#sff-panel button:focus,
#sff-panel input:focus,
#sff-panel select:focus {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

/* Disabled apply */
#sff-apply[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Tiered loading state (skeleton first, spinner escalation) */
.sff-tier-loading-host {
  position: relative;
}
.sff-skeleton-wrapper {
  position: absolute;
  inset: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  padding: 8px;
  background: linear-gradient(180deg, #ffffffee, #fffffff8);
  backdrop-filter: blur(1px);
}
.sff-skel {
  position: relative;
  border: 1px solid #e2e8f0;
  background: #f1f5f9;
  border-radius: 8px;
  height: 210px;
  overflow: hidden;
}
.sff-skel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.65) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  animation: sff-shimmer 1.1s linear infinite;
}
@keyframes sff-shimmer {
  0% {
    transform: translateX(-55%);
  }
  100% {
    transform: translateX(55%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .sff-skel::after {
    animation: none;
    opacity: 0.4;
  }
}
.sff-loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(2px);
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  color: #1e293b;
}
.sff-spinner {
  width: 46px;
  height: 46px;
  border: 4px solid #cbd5e1;
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: sff-spin 0.75s linear infinite;
  margin-bottom: 12px;
}
@keyframes sff-spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .sff-spinner {
    animation: none;
  }
}

/* Badge */
.sff-badge {
  font-weight: 600;
}