/* ==========================================================================
   COMPONENT: Custom Select Dropdown
   Replaces native <select> with a styled, accessible dropdown
   ========================================================================== */

.herb-select {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.herb-select__label {
  color: var(--color-on-surface-variant);
  white-space: nowrap;
}

/* Trigger button */
.herb-select__trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  font-weight: 500;
  color: var(--color-on-surface);
  background-color: var(--color-surface-container-lowest, #fff);
  border: 1.5px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default),
              background-color var(--duration-fast) var(--ease-default);
  outline: none;
  min-width: 160px;
  justify-content: space-between;
}

.herb-select__trigger:hover {
  border-color: var(--color-on-surface-variant);
  background-color: var(--color-surface-container-low, #f6f3eb);
}

.herb-select__trigger:focus-visible,
.herb-select.is-open .herb-select__trigger {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

/* Arrow icon */
.herb-select__arrow {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-on-surface-variant);
  transition: transform var(--duration-fast) var(--ease-default);
}

.herb-select.is-open .herb-select__arrow {
  transform: rotate(180deg);
}

/* Dropdown panel */
.herb-select__dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 100%;
  background-color: var(--color-surface-container-lowest, #fff);
  border: 1.5px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-medium);
  padding: var(--space-1);
  z-index: var(--z-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--duration-fast) var(--ease-default),
              visibility var(--duration-fast) var(--ease-default),
              transform var(--duration-fast) var(--ease-default);
}

.herb-select.is-open .herb-select__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Option items */
.herb-select__option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  color: var(--color-on-surface-variant);
  background: none;
  border: none;
  border-radius: calc(var(--radius-md) - 2px);
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
  transition: background-color var(--duration-fast) var(--ease-default),
              color var(--duration-fast) var(--ease-default);
}

.herb-select__option:hover {
  background-color: var(--color-surface-container-low, #f6f3eb);
  color: var(--color-on-surface);
}

.herb-select__option:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.herb-select__option.is-selected {
  color: var(--color-primary);
  font-weight: 600;
  background-color: rgba(23, 49, 36, 0.04);
}

.herb-select__option.is-selected::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  margin-left: auto;
}

/* Hidden native select (for form submission / accessibility) */
.herb-select select {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}