/* ============================================================
   Staves — Shared Whiskey Filter Component
   Used by both admin whiskey list and consumer menu.
   Assumes design tokens (--amber, --rule, etc.) are already
   defined by the host page (admin.css or menu.html).
   ============================================================ */

/* ── Filter bar ──────────────────────────────────────────────── */
.sf-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 0.75rem 0;
}

/* ── Pill button base ────────────────────────────────────────── */
.sf-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.42rem 0.9rem;
  border: 1.5px solid var(--rule);
  border-radius: 99px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.845rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.sf-pill:hover        { border-color: var(--amber); background: var(--amber-wash); }
.sf-pill.has-selection { border-color: var(--amber); background: var(--amber-wash); color: var(--amber); }
.sf-pill.open         { border-color: var(--amber); }

.sf-pill .chevron { font-size: 0.6rem; transition: transform 0.15s; }
.sf-pill.open .chevron { transform: rotate(180deg); }

.sf-pill .sf-badge {
  background: var(--amber);
  color: #fff;
  border-radius: 99px;
  padding: 0.05rem 0.42rem;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1.5;
}

/* ── Sort select ─────────────────────────────────────────────── */
.sf-sort-select {
  padding: 0.42rem 0.9rem;
  border: 1.5px solid var(--rule);
  border-radius: 99px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.845rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23A39E98'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}
.sf-sort-select:hover { border-color: var(--amber); }
.sf-sort-select:focus { border-color: var(--amber); outline: none; }

.sf-filter-spacer { flex: 1 1 0; }

/* ── Advanced toggle ─────────────────────────────────────────── */
.sf-adv-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.42rem 0.9rem;
  border: 1.5px solid var(--rule);
  border-radius: 99px;
  background: transparent;
  font-family: inherit;
  font-size: 0.845rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.15s;
}
.sf-adv-toggle:hover         { border-color: var(--amber); color: var(--amber); }
.sf-adv-toggle.open          { border-color: var(--amber); color: var(--amber); background: var(--amber-wash); }
.sf-adv-toggle .adv-chevron  { font-size: 0.6rem; transition: transform 0.15s; }
.sf-adv-toggle.open .adv-chevron { transform: rotate(180deg); }

/* ── Dropdown panels ─────────────────────────────────────────── */
.sf-pill-wrap { position: relative; }

.sf-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 210px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  z-index: 200;
  padding: 0.4rem;
}
.sf-dropdown.open { display: block; }

.sf-dropdown-scroll {
  max-height: 270px;
  overflow-y: auto;
  overflow-x: hidden;
}
.sf-dropdown-scroll::-webkit-scrollbar { width: 4px; }
.sf-dropdown-scroll::-webkit-scrollbar-track { background: transparent; }
.sf-dropdown-scroll::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 2px; }

.sf-dd-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.42rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--ink);
  transition: background 0.1s;
  user-select: none;
}
.sf-dd-item:hover { background: var(--surface); }
.sf-dd-item input[type=checkbox] {
  accent-color: var(--amber);
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  cursor: pointer;
}

.sf-dd-clear {
  display: block;
  width: 100%;
  padding: 0.38rem 0.6rem;
  border: none;
  border-top: 1px solid var(--rule);
  background: none;
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-align: left;
  cursor: pointer;
  margin-top: 0.25rem;
}
.sf-dd-clear:hover { color: var(--amber); }

/* ── Proof dropdown ──────────────────────────────────────────── */
.sf-proof-dropdown {
  padding: 1.1rem 1.4rem 0.6rem;
  min-width: 260px;
  max-width: calc(100vw - 1rem);
}

/* ── Dual-handle proof slider ────────────────────────────────── */
.sf-proof-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.sf-proof-head strong { font-size: 0.85rem; font-weight: 600; }

.sf-proof-inputs {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.sf-proof-input {
  width: 58px;
  padding: 0.28rem 0.4rem;
  border: 1.5px solid var(--rule);
  border-radius: 6px;
  background: var(--bg);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  text-align: center;
  outline: none;
  transition: border-color 0.15s;
  -moz-appearance: textfield;
}
.sf-proof-input::-webkit-outer-spin-button,
.sf-proof-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.sf-proof-input:focus { border-color: var(--amber); }
.sf-proof-inputs .sep { font-size: 0.8rem; color: var(--ink-faint); }

.sf-range-wrap {
  position: relative;
  height: 28px;
  display: flex;
  align-items: center;
}
.sf-range-track {
  position: absolute;
  width: 100%;
  height: 4px;
  background: var(--rule);
  border-radius: 2px;
}
.sf-range-fill {
  position: absolute;
  height: 4px;
  background: var(--amber);
  border-radius: 2px;
}
.sf-range-input {
  position: absolute;
  width: 100%;
  height: 4px;
  background: transparent;
  border: none;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  pointer-events: none;
}
.sf-range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--amber);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.22);
  cursor: grab;
  pointer-events: all;
}
.sf-range-input::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--amber);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.22);
  cursor: grab;
  pointer-events: all;
}
.sf-range-input::-webkit-slider-runnable-track { background: transparent; }
.sf-range-input::-moz-range-track { background: transparent; }

/* ── Sub-type bar ────────────────────────────────────────────── */
.sf-subtype-bar {
  display: none;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  padding: 0.5rem 0 0.25rem;
  border-top: 1px solid var(--rule);
}
.sf-subtype-bar.visible { display: flex; }
.sf-subtype-label {
  font-size: 0.75rem;
  color: var(--ink-faint);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-right: 0.15rem;
}

.sf-sub-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.24rem 0.65rem;
  border: 1px solid var(--rule);
  border-radius: 99px;
  background: var(--bg-card);
  font-size: 0.8rem;
  cursor: pointer;
  user-select: none;
  transition: all 0.12s;
}
.sf-sub-chip input[type=checkbox] { display: none; }
.sf-sub-chip.checked   { border-color: var(--amber); background: var(--amber-wash); color: var(--amber); font-weight: 500; }
.sf-sub-chip.unchecked { color: var(--ink-faint); text-decoration: line-through; }

/* ── Advanced filters section ────────────────────────────────── */
.sf-adv-section {
  display: none;
  padding: 0.6rem 0 0.75rem;
  border-top: 1px solid var(--rule);
}
.sf-adv-section.visible { display: block; }

.sf-adv-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.sf-adv-section-label {
  font-size: 0.75rem;
  color: var(--ink-faint);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.4rem;
}

/* ── Toggle chips (Barrel Pick, NCF, etc.) ───────────────────── */
.sf-toggle-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.32rem 0.8rem;
  border: 1.5px solid var(--rule);
  border-radius: 99px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}
.sf-toggle-chip:hover                { border-color: var(--amber); }
.sf-toggle-chip.on                   { border-color: var(--amber); background: var(--amber); color: #fff; }
.sf-toggle-chip.on.chip-red          { border-color: var(--red);   background: var(--red); }
.sf-toggle-chip:not(.on).chip-red:hover { border-color: var(--red); color: var(--red); }

/* ── Finish type chips ───────────────────────────────────────── */
.sf-finish-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.24rem 0.65rem;
  border: 1px solid var(--rule);
  border-radius: 99px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.8rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.12s;
  user-select: none;
}
.sf-finish-chip:hover { border-color: var(--amber); color: var(--amber); }
.sf-finish-chip.on    { border-color: var(--amber); background: var(--amber-wash2); color: var(--amber); font-weight: 500; }

.sf-barrel-cat-wrap { display: inline-flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; }
.sf-barrel-sub-chips { display: inline-flex; gap: 0.25rem; flex-wrap: wrap; align-items: center; }

/* ── Results bar ─────────────────────────────────────────────── */
.sf-results-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-top: 1px solid var(--rule);
  gap: 1rem;
}
.sf-results-count {
  font-size: 0.875rem;
  color: var(--ink-soft);
}
.sf-results-count strong { color: var(--ink); font-weight: 600; }

/* ── View toggle buttons ─────────────────────────────────────── */
.sf-view-toggle {
  display: flex;
  border: 1.5px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
}
.sf-view-btn {
  padding: 0.35rem 0.72rem;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1.05rem;
  line-height: 1;
  color: var(--ink-faint);
  transition: background 0.12s, color 0.12s;
}
.sf-view-btn + .sf-view-btn { border-left: 1px solid var(--rule); }
.sf-view-btn.active { background: var(--amber); color: #fff; }

/* ── States ──────────────────────────────────────────────────── */
.sf-loading-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--ink-soft);
}
.sf-empty-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--ink-soft);
}
.sf-empty-state h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--ink); }
.sf-empty-state p  { font-size: 0.9rem; }

/* ── Admin search input ──────────────────────────────────────── */
.sf-search-input {
  padding: 0.42rem 0.9rem 0.42rem 2rem;
  border: 1.5px solid var(--rule);
  border-radius: 99px;
  background: var(--bg-card);
  font-family: inherit;
  font-size: 0.845rem;
  font-weight: 500;
  color: var(--ink);
  outline: none;
  min-width: 220px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23A39E98' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='16.5' y1='16.5' x2='22' y2='22'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.7rem center;
  transition: border-color 0.15s;
}
.sf-search-input:focus { border-color: var(--amber); }
.sf-search-input::placeholder { color: var(--ink-faint); }

/* ── Sticky filter area ──────────────────────────────────────── */
.sf-filter-sticky {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  padding-bottom: 0.1rem;
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 700px) {
  .sf-filter-bar { gap: 0.4rem; }
  .sf-search-input { min-width: 160px; }
}