/* ===== Universal Dropdown Component ===== */
.dropdown {
  position: relative;
  flex-shrink: 0;
}

.dropdown-button {
  padding: var(--space-sm) var(--space-sm);
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: auto;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  line-height: 1.5;
}

.dropdown-button:hover {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.dropdown-button:focus {
  outline: none;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.dropdown-menu {
  position: absolute;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 1000;
  padding: var(--space-xs);
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Default: dropdown opens downward (for header) */
.dropdown-menu.downward {
  top: calc(100% + var(--space-xs));
  right: 0;
  transform: translateY(-4px);
}

/* Dropdown opens upward (for footer) */
.dropdown-menu.upward {
  bottom: calc(100% + var(--space-xs));
  right: 0;
  transform: translateY(4px);
  z-index: 1001; /* Higher than footer z-index (100) */
}

.dropdown-menu.open {
  opacity: 1;
  visibility: visible;
}

.dropdown-menu.downward.open {
  transform: translateY(0);
}

.dropdown-menu.upward.open {
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: none;
  background: transparent;
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-align: left;
  width: 100%;
}

.dropdown-item:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

.dropdown-item.active {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  font-weight: 500;
}

.dropdown-item:active {
  transform: scale(0.98);
}

.dropdown-item:focus {
  outline: none;
  background: var(--color-bg);
  color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

/* Handle form-based items (like button_to) */
.dropdown-item-form {
  display: flex;
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
  width: 100%;
}

.dropdown-item-form input[type="submit"],
.dropdown-item-form button[type="submit"] {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: none;
  background: transparent;
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-align: left;
  width: 100%;
}

.dropdown-item-form:hover input[type="submit"],
.dropdown-item-form:hover button[type="submit"] {
  background: var(--color-bg);
  color: var(--color-primary);
}

.dropdown-item-form input[type="submit"]:active,
.dropdown-item-form button[type="submit"]:active {
  transform: scale(0.98);
}

.dropdown-item-form input[type="submit"]:focus,
.dropdown-item-form button[type="submit"]:focus {
  outline: none;
  background: var(--color-bg);
  color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

/* Dropdown icon (for chevron, etc.) */
.dropdown-icon {
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
  width: 12px;
  height: 12px;
}

.dropdown-button:hover .dropdown-icon {
  color: var(--color-primary);
}

.dropdown-button[aria-expanded="true"] .dropdown-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .dropdown-button {
    padding: var(--space-xs) var(--space-xs);
    font-size: 0.8125rem;
    gap: 2px;
  }

  .dropdown-icon {
    width: 12px;
    height: 12px;
  }

  .dropdown-menu {
    min-width: 200px;
    max-height: 300px;
    overflow-y: auto;
  }

  .dropdown-item,
  .dropdown-item-form input[type="submit"],
  .dropdown-item-form button[type="submit"] {
    font-size: 0.8125rem;
    padding: var(--space-sm);
  }
}