/* ================================================================
   COMPONENT: Multiselect Dropdown
   FILE: components/multiselect-dropdown/multiselect-dropdown.css
   Requires: textbox.css
   ================================================================ */

/* Field wrapper needs relative positioning for the panel */
.ui-field--ms { position: relative; }

/* ---- Trigger (styled like an input) ---- */
.ui-ms-trigger {
  position: relative;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  min-height: 44px;
  padding: 6px 42px 6px 14px;
  background: var(--ui-surface);
  border: 1.5px solid var(--ui-border);
  border-radius: var(--r-md);
  cursor: pointer;
  user-select: none;
  outline: none;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.ui-ms-trigger:hover { border-color: var(--ui-border-mid); }
.ui-ms-trigger:focus,
.ui-ms-trigger[aria-expanded="true"] {
  border-color: var(--ui-border-focus);
  box-shadow: var(--sh-focus);
  background: var(--ui-white);
}

/* Error state applied to trigger */
.ui-field--error .ui-ms-trigger {
  border-color: var(--ui-error);
  background: var(--ui-error-bg);
}
.ui-field--error .ui-ms-trigger:focus {
  box-shadow: 0 0 0 3px var(--ui-error-glow);
}

/* ---- Placeholder ---- */
.ui-ms-ph { font-size: 14px; color: var(--ui-text-4); pointer-events: none; }
.ui-ms-ph.hidden { display: none; }

/* ---- Tags container ---- */
.ui-ms-tags { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; }

/* ---- Tag chip ---- */
.ui-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  height: 23px;
  padding: 0 3px 0 9px;
  background: var(--ui-primary-light);
  color: var(--ui-primary-dark);
  border: 1px solid rgba(26, 107, 74, 0.22);
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  animation: tagIn 150ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes tagIn {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.ui-tag__x {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  border: none; background: none;
  color: inherit; cursor: pointer;
  border-radius: 50%;
  font-size: 14px; line-height: 1; padding: 0;
  opacity: 0.7;
  transition: opacity var(--t-fast), background var(--t-fast);
}
.ui-tag__x:hover { opacity: 1; background: rgba(26, 107, 74, 0.2); }

/* ---- Chevron ---- */
.ui-ms-chev {
  position: absolute;
  right: 13px; top: 50%;
  transform: translateY(-50%);
  display: flex;
  color: var(--ui-text-3);
  pointer-events: none;
  transition: transform var(--t-base), color var(--t-base);
}
.ui-ms-trigger[aria-expanded="true"] .ui-ms-chev {
  transform: translateY(-50%) rotate(180deg);
  color: var(--ui-primary);
}

/* ---- Dropdown Panel ---- */
.ui-ms-panel {
  position: absolute;
  z-index: var(--z-dropdown);
  top: calc(100% + 5px);
  left: 0; right: 0;
  background: var(--ui-surface);
  border: 1.5px solid var(--ui-border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-lg);
  overflow: hidden;
  display: none;
  flex-direction: column;
}
.ui-ms-panel.open {
  display: flex;
  animation: panelIn 150ms ease;
}
@keyframes panelIn {
  from { opacity: 0; transform: translateY(-5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Search ---- */
.ui-ms-srch-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--ui-border);
  background: var(--ui-surface-alt);
}
.ui-ms-srch-wrap svg { color: var(--ui-text-3); flex-shrink: 0; }

.ui-ms-srch {
  flex: 1; border: none; outline: none;
  font-family: var(--ui-font);
  font-size: 13px;
  color: var(--ui-text-1);
  background: transparent;
}
.ui-ms-srch::placeholder { color: var(--ui-text-4); }

/* ---- Options list ---- */
.ui-ms-list {
  list-style: none;
  max-height: 210px;
  overflow-y: auto;
  padding: 5px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--ui-border) transparent;
}
.ui-ms-list::-webkit-scrollbar { width: 4px; }
.ui-ms-list::-webkit-scrollbar-thumb { background: var(--ui-border); border-radius: 99px; }

/* ---- Option row ---- */
.ui-ms-opt {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--ui-text-1);
  transition: background var(--t-fast);
}
.ui-ms-opt:hover                    { background: var(--ui-surface-alt); }
.ui-ms-opt[aria-selected="true"]    { background: var(--ui-primary-light); color: var(--ui-primary-dark); }
.ui-ms-opt.focused                  { background: var(--ui-surface-alt); }
.ui-ms-opt.filtered                 { display: none; }

/* Custom checkbox */
.ui-ms-chk {
  width: 16px; height: 16px;
  border: 1.5px solid var(--ui-border-mid);
  border-radius: 4px;
  background: var(--ui-white);
  flex-shrink: 0;
  position: relative;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.ui-ms-opt[aria-selected="true"] .ui-ms-chk {
  background: var(--ui-primary);
  border-color: var(--ui-primary);
}
.ui-ms-opt[aria-selected="true"] .ui-ms-chk::after {
  content: '';
  position: absolute;
  left: 4px; top: 1px;
  width: 5px; height: 9px;
  border: 2px solid #fff;
  border-top: none; border-left: none;
  transform: rotate(45deg);
}

/* ---- Empty state ---- */
.ui-ms-empty {
  padding: 16px;
  text-align: center;
  font-size: 13px;
  color: var(--ui-text-3);
}

/* ---- Footer ---- */
.ui-ms-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-top: 1px solid var(--ui-border);
  background: var(--ui-surface-alt);
}
.ui-ms-clear {
  font-family: var(--ui-font);
  font-size: 12px; font-weight: 600;
  color: var(--ui-primary);
  background: none; border: none;
  cursor: pointer; padding: 2px 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.ui-ms-clear:hover { color: var(--ui-primary-dark); }

.ui-ms-count { font-size: 12px; color: var(--ui-text-3); }