.app-main:has(.signature-page) {
  max-inline-size: 1040px;
}

.signature-page {
  min-height: 100dvh;
  padding: var(--space-6) var(--space-6) var(--space-12);
  color: var(--color-text-body);
  display: grid;
  align-content: start;
  gap: var(--space-5);
}

.signature-header {
  display: grid;
  gap: var(--space-3);
  max-width: 760px;
}

.signature-header .hero-headline,
.signature-header .hero-body {
  margin: 0;
}

.signature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  align-items: stretch;
  min-width: 0;
}

.signature-grid-single {
  grid-template-columns: minmax(0, 520px);
}

.signature-card {
  display: grid;
  align-content: start;
  gap: var(--space-5);
  min-width: 0;
  padding: var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--r-md);
}

.signature-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.2;
  font-weight: 500;
  margin: 0;
  color: var(--color-text-heading);
}

.signature-helper {
  margin: var(--space-3) 0 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-text-body);
  overflow-wrap: anywhere;
}

.signature-helper a {
  color: var(--color-primary-text);
  font-weight: 700;
  text-decoration: none;
}

.signature-helper a:hover {
  text-decoration: none;
}

.signature-uuid {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.signature-uuid > span {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.signature-uuid > code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-body);
}

.signature-status {
  margin: 0;
  min-width: 0;
  font-size: 0.875rem;
  color: var(--color-text-body);
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--color-primary-accent);
  background: var(--color-bg-page);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  overflow-wrap: anywhere;
}

.signature-label {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.signature-field {
  display: block;
  width: 100%;
  min-width: 0;
  min-height: 2.75rem;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--r-md);
  background: var(--color-bg-page);
  color: var(--color-text-body);
  font-family: var(--font-sans);
  font-size: 1rem;
}

.signature-field:focus-visible {
  outline: 2px solid var(--color-primary-accent);
  outline-offset: 2px;
  border-color: var(--color-primary-accent);
}

.signature-error {
  margin: 0;
  min-width: 0;
  padding: var(--space-3) var(--space-4);
  background: var(--color-accent-bounded-subtle);
  border-inline-start: 3px solid var(--color-accent-bounded);
  border-radius: var(--r-md);
  color: var(--color-text-bounded);
  font-size: 0.875rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.signature-success {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-page);
  border-radius: var(--r-md);
  color: var(--color-text-body);
  font-size: 0.9375rem;
}

.signature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-block-start: auto;
}

.signature-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  min-inline-size: min(100%, 260px);
  padding: var(--space-3) var(--space-5);
  border: 0;
  border-radius: var(--r-md);
  background: var(--color-primary-bg);
  color: var(--color-text-on-primary);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
}

.signature-button:disabled {
  opacity: 0.5;
  cursor: progress;
}

.signature-button-danger {
  background: var(--color-bg-page);
  border: 1px solid var(--color-accent-bounded);
  color: var(--color-text-bounded);
}

.signature-button-danger:hover:not(:disabled) {
  background: var(--color-accent-bounded-subtle);
}

.signature-button-hidden {
  display: none;
}

.signature-button:focus-visible {
  outline: 2px solid var(--color-primary-accent);
  outline-offset: 2px;
}

@media (max-width: 760px) {
  .app-main:has(.signature-page) {
    max-inline-size: 640px;
  }
  .signature-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 480px) {
  .signature-page {
    padding: var(--space-5) var(--space-4) var(--space-8);
  }
  .signature-card {
    padding: var(--space-4);
  }
  .signature-button {
    inline-size: 100%;
  }
}