/* ════════════════════════════════════════════════════════════════════════
   FORM COMPONENTS
   ════════════════════════════════════════════════════════════════════════ */
.form-field {
  margin-bottom: var(--space-4);
}

.form-field--grow {
  flex: 1;
  min-width: 0;
}

.form-label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
}

.form-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-1);
}

.form-label-row .form-label {
  margin-bottom: 0;
}

.form-input,
.form-select {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 var(--space-3);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.form-input::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:hover,
.form-select:hover {
  border-color: var(--color-border-strong);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-ring);
}

.form-input.is-error {
  border-color: var(--color-error);
}

.form-input.is-error:focus {
  box-shadow: 0 0 0 3px var(--color-error-light);
}

/* Select arrow */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Password show/hide */
.form-input-wrap {
  position: relative;
}

.form-input--has-action {
  padding-right: 44px;
}

.form-input-action {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--color-text-tertiary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.form-input-action:hover {
  color: var(--color-text-secondary);
}

.form-error {
  margin-top: var(--space-1);
  font-size: 0.8125rem;
  color: var(--color-error);
  min-height: 0;
}

.form-error:empty {
  display: none;
}


/* ════════════════════════════════════════════════════════════════════════
   BUTTONS
   ════════════════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.btn:hover {
  background: var(--color-surface-muted);
  border-color: var(--color-border-strong);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Primary */
.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn--primary:disabled {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* Danger */
.btn--danger {
  background: var(--color-error);
  border-color: var(--color-error);
  color: #ffffff;
}

.btn--danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

/* Ghost */
.btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  background: var(--color-surface-muted);
  color: var(--color-text);
}

/* Sizes */
.btn--sm {
  height: 34px;
  padding: 0 var(--space-3);
  font-size: 0.8125rem;
  border-radius: var(--radius-md);
}

.btn--lg {
  height: 48px;
  font-size: 0.9375rem;
  font-weight: 600;
}

.btn--full {
  width: 100%;
}

/* Spinner */
.btn__spinner {
  display: none;
  animation: spin 0.8s linear infinite;
}

.btn.is-loading .btn__text {
  opacity: 0;
  width: 0;
  overflow: hidden;
}

.btn.is-loading .btn__spinner {
  display: block;
}

.btn.is-loading {
  pointer-events: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Link button */
.link {
  display: inline;
  border: none;
  background: none;
  padding: 0;
  color: var(--color-accent);
  font-weight: 500;
  font-size: inherit;
  font-family: inherit;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--color-accent-hover);
}