.custom-select {
  position: relative;
  width: 100%;
}

.custom-select > .custom-select__native,
.custom-select > select.custom-select__native {
  display: none;
  visibility: hidden;
  position: absolute;
  width: 0;
  height: 0;
  margin: 0;
  padding: 0;
  border: 0;
  overflow: hidden;
  pointer-events: none;
  appearance: none;
  -webkit-appearance: none;
}

.custom-select__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  width: 100%;
  min-height: 44px;
  padding: 0.75rem 1rem;
  font-size: 16px;
  text-align: left;
  color: var(--color-graphite);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    border-color var(--duration-ui) var(--ease-out),
    box-shadow var(--duration-ui) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.custom-select__trigger:hover {
  border-color: rgba(138, 175, 168, 0.55);
}

.custom-select__trigger:focus-visible {
  border-color: var(--color-sage);
  outline: none;
  box-shadow: 0 0 0 3px rgba(138, 175, 168, 0.22);
}

.custom-select.is-open .custom-select__trigger {
  border-color: var(--color-sage);
  box-shadow: 0 0 0 3px rgba(138, 175, 168, 0.18);
}

.custom-select__value {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.custom-select__value.is-placeholder {
  color: var(--color-graphite-muted);
}

.custom-select__icon {
  flex-shrink: 0;
  width: 0.625rem;
  height: 0.625rem;
  border-right: 2px solid var(--color-navy);
  border-bottom: 2px solid var(--color-navy);
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--duration-ui) var(--ease-out);
}

.custom-select.is-open .custom-select__icon {
  transform: rotate(-135deg) translateY(2px);
}

.custom-select__trigger.form-input--invalid {
  border-color: #9f2f2d;
  box-shadow: 0 0 0 3px rgba(159, 47, 45, 0.14);
}

.custom-select__trigger.form-input--invalid:focus-visible {
  border-color: #9f2f2d;
  box-shadow: 0 0 0 3px rgba(159, 47, 45, 0.18);
}

.custom-select__backdrop {
  display: none;
}

.custom-select__dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 40;
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.custom-select__sheet-head {
  display: none;
}

.custom-select__list {
  max-height: 240px;
  margin: 0;
  padding: var(--space-xs);
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.custom-select__option {
  display: block;
  width: 100%;
  padding: 0.75rem 0.875rem;
  font-size: 16px;
  line-height: 1.35;
  text-align: left;
  color: var(--color-graphite);
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background-color var(--duration-ui) var(--ease-out),
    color var(--duration-ui) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.custom-select__option:hover,
.custom-select__option:focus-visible {
  background: var(--color-bg-accent);
  color: var(--color-navy);
  outline: none;
}

.custom-select__option.is-selected {
  background: var(--color-sage-pastel);
  color: var(--color-navy);
  font-weight: 600;
}

.custom-select__option.is-disabled {
  color: var(--color-graphite-muted);
  cursor: default;
}

@media (max-width: 767px) {
  .custom-select__backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 120;
    background: rgba(31, 74, 115, 0.28);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity var(--duration-modal) var(--ease-out),
      visibility var(--duration-modal) var(--ease-out);
  }

  .custom-select.is-open .custom-select__backdrop,
  .custom-select__backdrop.is-active {
    opacity: 1;
    visibility: visible;
  }

  .custom-select__dropdown {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 121;
    max-height: min(72vh, 520px);
    border: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: 0 -12px 40px rgba(31, 74, 115, 0.18);
    transform: translateY(100%);
    transition: transform var(--duration-modal) var(--ease-drawer);
  }

  .custom-select.is-open .custom-select__dropdown,
  .custom-select__dropdown.is-active {
    transform: translateY(0);
  }

  .custom-select__sheet-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border-subtle);
  }

  .custom-select__sheet-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-navy);
  }

  .custom-select__sheet-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    color: var(--color-navy);
    background: var(--color-bg-accent);
    border: 0;
    border-radius: var(--radius-pill);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .custom-select__sheet-close:focus-visible {
    outline: 2px solid var(--color-sage);
    outline-offset: 2px;
  }

  .custom-select__list {
    max-height: calc(min(72vh, 520px) - 68px);
    padding:
      var(--space-xs)
      var(--space-md)
      calc(var(--space-md) + env(safe-area-inset-bottom, 0px));
  }

  .custom-select__option {
    padding: 0.875rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .custom-select__dropdown,
  .custom-select__backdrop,
  .custom-select__icon {
    transition: none;
  }
}

html.custom-select-open {
  overflow: hidden;
}

html.custom-select-open body {
  touch-action: none;
}