.btn {
  display: inline-block;
  padding: 0.95rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 450;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.btn--light {
  color: var(--color-ivory);
  border-color: var(--color-line-light);
  background: transparent;
}

.btn--light:hover {
  background: var(--color-ivory);
  color: var(--color-charcoal);
  opacity: 1;
}

.btn--dark {
  color: var(--color-ivory);
  background: var(--color-charcoal);
  border-color: var(--color-charcoal);
}

.btn--dark:hover {
  background: var(--color-charcoal-soft);
  opacity: 1;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-field {
  margin-bottom: var(--space-sm);
}

.form-field label {
  display: block;
  margin-bottom: var(--space-2xs);
  font-size: 0.68rem;
  font-weight: 450;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-stone);
}

.label-optional {
  font-weight: 300;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-stone-light);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.85rem 0;
  font: inherit;
  font-weight: 300;
  color: var(--color-charcoal);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-line);
  border-radius: 0;
  appearance: none;
}

.form-field select {
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--color-stone) 50%),
    linear-gradient(135deg, var(--color-stone) 50%, transparent 50%);
  background-position: calc(100% - 16px) calc(50% + 2px), calc(100% - 10px) calc(50% + 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-bottom-color: var(--color-charcoal);
}

.form-field__readonly,
.form-field input[readonly] {
  color: var(--color-charcoal-soft);
  cursor: default;
  border-bottom-style: dashed;
}

.form-field--language {
  margin-bottom: var(--space-md);
}

.form-field--honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.presentation-form__privacy {
  margin: 0 0 var(--space-md);
  font-size: 0.78rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-stone);
}

.presentation-form__privacy a {
  color: var(--color-charcoal-soft);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  transition: color var(--duration-fast);
}

.presentation-form__privacy a:hover {
  color: var(--color-charcoal);
}

.presentation-form__status {
  margin-top: var(--space-sm);
  min-height: 1.25rem;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.presentation-form__status--success {
  color: #4a5d4a;
}

.presentation-form__status--error {
  color: #6b4545;
}