/* UX: reading progress, infinite scroll, Spotlight search, focus rings */

/* ── Soft focus (replace browser outline) ── */
:root {
  --focus-ring: color-mix(in srgb, var(--accent, #e3b341) 45%, transparent);
  --focus-border: var(--accent, #e3b341);
}

input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="file"]):not([type="submit"]):not([type="button"]):not([type="reset"]):not([type="image"]),
textarea,
select,
.form-control,
.form-select,
.blog-dp-display,
.cmt-input {
  outline: none !important;
  transition: border-color 0.2s ease, box-shadow 0.25s ease, background-color 0.2s ease;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="file"]):not([type="submit"]):not([type="button"]):not([type="reset"]):not([type="image"]):not(.site-search-input):not(.admin-search-input):focus,
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="file"]):not([type="submit"]):not([type="button"]):not([type="reset"]):not([type="image"]):not(.site-search-input):not(.admin-search-input):focus-visible,
textarea:focus,
textarea:focus-visible,
select:focus,
select:focus-visible,
.form-control:focus,
.form-control:focus-visible,
.form-select:focus,
.form-select:focus-visible,
.blog-dp-display:focus,
.blog-dp-display:focus-visible,
.cmt-input:focus,
.cmt-input:focus-visible {
  outline: none !important;
  border-color: var(--focus-border) !important;
  box-shadow: 0 0 0 3px var(--focus-ring) !important;
}

/* Spotlight search inputs: never paint a thick ring on the field itself */
.site-search-input:focus,
.site-search-input:focus-visible,
.admin-search-input:focus,
.admin-search-input:focus-visible {
  outline: none !important;
  border: 0 !important;
  box-shadow: none !important;
  background: transparent !important;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
}

button:focus-visible,
a:focus-visible,
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--focus-ring);
}

/* ── Reading progress ── */
.reading-progress {
  position: fixed;
  top: 0;
  inset-inline-start: 0;
  height: 3px;
  width: 0%;
  z-index: 1100;
  background: linear-gradient(90deg, var(--accent, #e3b341), color-mix(in srgb, var(--accent, #e3b341) 60%, #fff));
  pointer-events: none;
  opacity: 0;
  transition: width 0.12s linear, opacity 0.25s ease;
  box-shadow: 0 0 8px color-mix(in srgb, var(--accent, #e3b341) 40%, transparent);
}
.reading-progress.is-active { opacity: 1; }
.reading-progress.is-complete { opacity: 0.85; }

.infinite-status {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted, #8b93a7);
  min-height: 2.5rem;
}
.infinite-status.is-loading { color: var(--accent, #e3b341); }
.infinite-status.is-error { color: var(--danger, #e5637a); }
#infinite-sentinel { height: 1px; width: 100%; pointer-events: none; }

.back-to-top {
  position: fixed;
  bottom: 1.25rem;
  inset-inline-end: 1.25rem;
  z-index: 900;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid var(--border-soft, #1e2430);
  background: var(--surface, #12161f);
  color: var(--text, #e6e9f0);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: none; }
.back-to-top:hover { border-color: var(--accent, #e3b341); color: var(--accent, #e3b341); }

.md-heading.is-section-active { scroll-margin-top: 6rem; }
.md-heading.is-section-active::before {
  content: "";
  display: inline-block;
  width: 3px;
  height: 0.85em;
  margin-inline-end: 0.45rem;
  border-radius: 2px;
  background: var(--accent, #e3b341);
  vertical-align: -0.05em;
}

/* ═══════════════════════════════════════════════════════════════
   Public Spotlight search — macOS Spotlight inspired
   ═══════════════════════════════════════════════════════════════ */
#search-overlay.site-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(28px) saturate(140%);
  -webkit-backdrop-filter: blur(28px) saturate(140%);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: min(14vh, 110px) 1rem 2rem;
}
#search-overlay.site-search-overlay[hidden] {
  display: none !important;
}

.site-search-dialog {
  width: min(680px, 100%);
  max-height: min(70vh, 620px);
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--surface, #1c1c1e) 88%, #fff 6%) 0%,
      var(--surface, #1c1c1e) 100%
    );
  border: 1px solid color-mix(in srgb, #fff 10%, transparent);
  border-radius: 14px;
  box-shadow:
    0 0 0 0.5px rgba(0, 0, 0, 0.35),
    0 22px 70px rgba(0, 0, 0, 0.55),
    0 2px 8px rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: site-search-pop 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes site-search-pop {
  from { opacity: 0; transform: translateY(-12px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

/* Flush header field — no boxed input (true Spotlight) */
.site-search-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem 1.15rem 0.95rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transition: none;
}
.site-search-bar:focus-within {
  border: 0;
  background: transparent;
  box-shadow: none;
}
.site-search-icon {
  flex-shrink: 0;
  opacity: 0.45;
  font-size: 1.2rem;
  line-height: 1;
  color: var(--text-muted, #98989d);
  transition: opacity 0.15s ease;
}
.site-search-bar:focus-within .site-search-icon {
  opacity: 0.75;
  color: var(--text-muted, #98989d);
}
.site-search-input {
  flex: 1;
  min-width: 0;
  border: 0 !important;
  outline: 0 !important;
  box-shadow: none !important;
  background: transparent !important;
  color: var(--text, #f5f5f7);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  font-family: inherit;
  padding: 0.1rem 0;
  line-height: 1.35;
  -webkit-appearance: none;
  appearance: none;
}
.site-search-input::placeholder {
  color: var(--text-muted, #98989d);
  opacity: 0.75;
  font-weight: 400;
}
.site-search-clear {
  border: 0;
  background: color-mix(in srgb, var(--text-muted, #98989d) 22%, transparent);
  color: var(--text, #f5f5f7);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0.85;
  transition: opacity 0.12s, background 0.12s;
}
.site-search-clear:hover {
  opacity: 1;
  background: color-mix(in srgb, var(--text-muted, #98989d) 35%, transparent);
}

/* Hairline under search field only */
.site-search-bar + .site-search-meta,
.site-search-bar + .site-search-body {
  border-top: 1px solid color-mix(in srgb, #fff 8%, transparent);
}

.site-search-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 1.15rem;
  font-size: 0.72rem;
  color: var(--text-muted, #98989d);
  border-bottom: 1px solid color-mix(in srgb, #fff 6%, transparent);
  background: transparent;
}
.site-search-latency {
  font-variant-numeric: tabular-nums;
  opacity: 0.7;
}

.site-search-body {
  flex: 1;
  overflow-y: auto;
  min-height: 140px;
  max-height: min(50vh, 400px);
  padding: 0.25rem 0;
}

.site-search-empty {
  padding: 2.25rem 1.5rem 1.75rem;
  text-align: center;
  color: var(--text-muted, #98989d);
}
.site-search-empty .hint {
  font-size: 1rem;
  font-weight: 500;
  margin: 0 0 0.4rem;
  color: color-mix(in srgb, var(--text, #f5f5f7) 88%, transparent);
  letter-spacing: -0.01em;
}
.site-search-empty .hint-sub {
  font-size: 0.78rem;
  opacity: 0.65;
  margin: 0;
  font-weight: 400;
}

.site-search-scopes {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: center;
  padding-top: 1rem;
}
.site-search-scopes .scope {
  border: 0;
  border-radius: 999px;
  padding: 0.32rem 0.85rem;
  font-size: 0.78rem;
  cursor: pointer;
  background: color-mix(in srgb, #fff 8%, transparent);
  color: var(--text-muted, #98989d);
  font-family: inherit;
  transition: background 0.12s, color 0.12s;
}
.site-search-scopes .scope:hover {
  background: color-mix(in srgb, #fff 14%, transparent);
  color: var(--text, #f5f5f7);
}

.site-search-skeleton {
  padding: 0.45rem 0.75rem;
}
.site-search-skeleton .sk-row {
  height: 48px;
  margin: 0.35rem 0;
  border-radius: 8px;
  background: linear-gradient(
    90deg,
    color-mix(in srgb, #fff 5%, transparent) 25%,
    color-mix(in srgb, #fff 10%, transparent) 50%,
    color-mix(in srgb, #fff 5%, transparent) 75%
  );
  background-size: 200% 100%;
  animation: site-search-shimmer 1.15s ease-in-out infinite;
}
@keyframes site-search-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.site-search-list {
  list-style: none;
  margin: 0;
  padding: 0.2rem 0.45rem 0.45rem;
}
.site-search-item {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 0.65rem;
  align-items: center;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: background 0.1s ease;
}
.site-search-item:hover,
.site-search-item.is-active {
  background: color-mix(in srgb, #0a84ff 22%, transparent);
}
.site-search-item .ss-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, #fff 8%, transparent);
  color: var(--text, #f5f5f7);
  font-size: 0.7rem;
  font-weight: 650;
  text-transform: uppercase;
}
.site-search-item .ss-main { min-width: 0; }
.site-search-item .ss-title {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text, #f5f5f7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.site-search-item .ss-title mark {
  background: color-mix(in srgb, #0a84ff 35%, transparent);
  color: inherit;
  border-radius: 2px;
  padding: 0 1px;
}
.site-search-item .ss-sub {
  font-size: 0.74rem;
  color: var(--text-muted, #98989d);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.08rem;
}
.site-search-item .ss-meta {
  font-size: 0.68rem;
  color: var(--text-muted, #98989d);
  text-align: end;
  max-width: 6.5rem;
}

.site-search-group {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted, #98989d);
  padding: 0.55rem 0.75rem 0.2rem;
  list-style: none;
  opacity: 0.85;
}

/* Compact macOS-style footer */
.site-search-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  padding: 0.45rem 1rem;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--text-muted, #98989d);
  border-top: 1px solid color-mix(in srgb, #fff 8%, transparent);
  background: color-mix(in srgb, #000 18%, transparent);
}
.site-search-footer kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.35em;
  font-size: 0.65rem;
  font-weight: 500;
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, #fff 12%, transparent);
  font-family: inherit;
  background: color-mix(in srgb, #fff 8%, transparent);
  color: color-mix(in srgb, var(--text, #f5f5f7) 80%, transparent);
  box-shadow: none;
}
.site-search-full {
  margin-inline-start: auto;
  color: #0a84ff;
  text-decoration: none;
  font-weight: 500;
  opacity: 1;
}
.site-search-full:hover { text-decoration: none; opacity: 0.85; }

html[data-theme="light"] #search-overlay.site-search-overlay {
  background: rgba(0, 0, 0, 0.22);
}
html[data-theme="light"] .site-search-dialog {
  background: color-mix(in srgb, #f5f5f7 92%, #fff);
  border-color: color-mix(in srgb, #000 8%, transparent);
  box-shadow:
    0 0 0 0.5px rgba(0, 0, 0, 0.08),
    0 22px 60px rgba(0, 0, 0, 0.18);
}
html[data-theme="light"] .site-search-input {
  color: #1d1d1f;
}
html[data-theme="light"] .site-search-item:hover,
html[data-theme="light"] .site-search-item.is-active {
  background: color-mix(in srgb, #0a84ff 14%, transparent);
}
html[data-theme="light"] .site-search-full {
  color: #0071e3;
}

@media (prefers-reduced-motion: reduce) {
  .reading-progress,
  .back-to-top { transition: none; }
  .site-search-dialog { animation: none; }
  .site-search-skeleton .sk-row { animation: none; }
  input, textarea, select, .form-control, .form-select {
    transition: none;
  }
}