/* ============================================================
   Filtrium 1.0 — filtrium.css
   ============================================================ */

.filtrium-filter {
  --filtrium-acc:    #e63946;
  --filtrium-txt:    #111111;
  --filtrium-bg:     #ffffff;
  --filtrium-rad:    14px;
  --filtrium-brd:    #e4e4e7;
  --filtrium-muted:  #888888;
  --filtrium-inp:    #f5f5f7;
  --filtrium-tr:     .2s cubic-bezier(.4,0,.2,1);

  position: relative;
  background: var(--filtrium-bg);
  color: var(--filtrium-txt);
  border-radius: var(--filtrium-rad);
  padding: 20px 18px;
  border: 0.5px solid var(--filtrium-brd);
  font-family: inherit;
}

/* ── Groups ─────────────────────────────────────────────── */
.filtrium-group {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 0.5px solid var(--filtrium-brd);
}
.filtrium-group:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

/* ── Section labels ─────────────────────────────────────── */
.filtrium-sec-label {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--filtrium-muted);
  margin: 0 0 10px;
}

/* ── Price range ────────────────────────────────────────── */
.filtrium-price-disp {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--filtrium-acc);
  margin-bottom: 12px;
}
.filtrium-price-sep { color: var(--filtrium-muted); }

.filtrium-range-wrap {
  position: relative;
  height: 22px;
}
.filtrium-range {
  -webkit-appearance: none;
  appearance: none;
  position: absolute;
  width: 100%;
  height: 4px;
  background: transparent;
  pointer-events: none;
  outline: none;
  top: 9px;
}
.filtrium-range::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--filtrium-brd);
  border-radius: 4px;
}
.filtrium-range::-moz-range-track {
  height: 4px;
  background: var(--filtrium-brd);
  border-radius: 4px;
}
.filtrium-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--filtrium-acc);
  border: 2px solid var(--filtrium-bg);
  cursor: pointer;
  pointer-events: all;
  margin-top: -7px;
  transition: transform var(--filtrium-tr);
}
.filtrium-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--filtrium-acc);
  border: 2px solid var(--filtrium-bg);
  cursor: pointer;
  pointer-events: all;
}
.filtrium-range::-webkit-slider-thumb:hover { transform: scale(1.15); }

.filtrium-range-track {
  position: absolute;
  top: 11px;
  height: 4px;
  background: var(--filtrium-acc);
  border-radius: 4px;
  pointer-events: none;
}

/* ── Color swatches ─────────────────────────────────────── */
.filtrium-swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.filtrium-swatch { display: flex; flex-direction: column; align-items: center; gap: 4px; cursor: pointer; }
.filtrium-swatch input { position: absolute; opacity: 0; width: 0; height: 0; }
.filtrium-swatch__dot {
  width: 26px; height: 26px; border-radius: 50%;
  border: 1.5px solid var(--filtrium-brd);
  transition: transform var(--filtrium-tr), border-color var(--filtrium-tr), outline var(--filtrium-tr);
}
.filtrium-swatch__name { font-size: 10px; color: var(--filtrium-muted); max-width: 36px; text-align: center; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.filtrium-swatch input:checked ~ .filtrium-swatch__dot {
  border-color: var(--filtrium-acc);
  transform: scale(1.2);
  outline: 2px solid color-mix(in srgb, var(--filtrium-acc) 28%, transparent);
}
.filtrium-swatch:hover .filtrium-swatch__dot { transform: scale(1.1); }

/* ── Size chips ─────────────────────────────────────────── */
.filtrium-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.filtrium-chip { cursor: pointer; }
.filtrium-chip input { position: absolute; opacity: 0; width: 0; height: 0; }
.filtrium-chip span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; padding: 4px 10px;
  font-size: 12px; font-weight: 500;
  border: 0.5px solid var(--filtrium-brd);
  border-radius: 6px;
  background: var(--filtrium-inp);
  color: var(--filtrium-txt);
  transition: background var(--filtrium-tr), border-color var(--filtrium-tr), color var(--filtrium-tr);
}
.filtrium-chip:hover span { border-color: var(--filtrium-acc); color: var(--filtrium-acc); }
.filtrium-chip input:checked ~ span { background: var(--filtrium-acc); border-color: var(--filtrium-acc); color: #fff; }

/* ── Weight inputs ──────────────────────────────────────── */
.filtrium-weight-row { display: flex; align-items: flex-end; gap: 8px; }
.filtrium-weight-f { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.filtrium-weight-sep { color: var(--filtrium-muted); padding-bottom: 8px; }
.filtrium-w-label { font-size: 11px; color: var(--filtrium-muted); }
.filtrium-w-input {
  width: 100%; padding: 7px 9px;
  border: 0.5px solid var(--filtrium-brd);
  border-radius: 8px;
  background: var(--filtrium-inp);
  color: var(--filtrium-txt);
  font-size: 13px; outline: none;
  transition: border-color var(--filtrium-tr), box-shadow var(--filtrium-tr);
  box-sizing: border-box;
}
.filtrium-w-input:focus {
  border-color: var(--filtrium-acc);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--filtrium-acc) 18%, transparent);
}

/* ── Buttons ────────────────────────────────────────────── */
.filtrium-actions { margin-top: 18px; display: flex; gap: 8px; }
.filtrium-btn-apply,
.filtrium-btn-reset {
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity var(--filtrium-tr), transform var(--filtrium-tr);
}
.filtrium-btn-apply {
  flex: 1; padding: 10px;
  border: none;
  background: var(--filtrium-acc);
  color: #fff;
}
.filtrium-btn-apply:hover  { opacity: .85; transform: translateY(-1px); }
.filtrium-btn-apply:active { transform: translateY(0); }
.filtrium-btn-reset {
  padding: 10px 14px;
  border: 0.5px solid var(--filtrium-brd);
  background: var(--filtrium-inp);
  color: var(--filtrium-muted);
}
.filtrium-btn-reset:hover { background: var(--filtrium-brd); color: var(--filtrium-txt); }

/* ── Loader ─────────────────────────────────────────────── */
.filtrium-loader { display: none; position: absolute; inset: 0; background: rgba(255,255,255,.6); border-radius: var(--filtrium-rad); }
.filtrium-loader::after {
  content: '';
  position: absolute; top: 50%; left: 50%;
  width: 26px; height: 26px; margin: -13px 0 0 -13px;
  border: 3px solid var(--filtrium-brd);
  border-top-color: var(--filtrium-acc);
  border-radius: 50%;
  animation: filtrium-spin .7s linear infinite;
}
@keyframes filtrium-spin { to { transform: rotate(360deg); } }
.filtrium-filter.filtrium-loading .filtrium-loader { display: block; }

/* ── No results ─────────────────────────────────────────── */
.filtrium-no-results {
  text-align: center; padding: 40px;
  color: var(--filtrium-muted); font-size: 14px;
}