:root {
  --header-height: var(--pc-site-header-height);
}

.contact-label-row,
.contact-form-actions,
.contact-file-row,
.contact-file-meta,
.contact-detail-heading,
.contact-detail-meta,
.contact-detail-actions,
.contact-reply-heading {
  display: flex;
  align-items: center;
}

.contact-shell {
  width: min(calc(100% - (var(--space-6) * 2)), var(--content-max));
  margin-inline: auto;
  padding-block: var(--space-10) var(--space-12);
}

.contact-guide-row p,
.contact-privacy-note,
.contact-login-shortcut,
.contact-account-state p,
.contact-detail-body,
.contact-reply-body,
.contact-detail-section p,
.contact-detail-section h4 {
  margin: 0;
}

.contact-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 18rem);
  align-items: start;
  gap: var(--space-6);
}

.contact-form-card,
.contact-support-rail,
.contact-history,
.contact-inquiry-list,
.contact-inquiry-detail {
  min-width: 0;
}

.contact-form-card .card-content {
  padding-top: var(--space-5);
}

.contact-form {
  display: grid;
  gap: var(--space-5);
}

.contact-details-fieldset {
  display: grid;
  min-width: 0;
  margin: 0;
  padding: var(--space-5) 0 0;
  gap: var(--space-5);
  border: 0;
  border-top: 1px solid var(--border);
}

.contact-section-legend {
  margin: 0 0 var(--space-1);
  padding: 0;
  color: var(--foreground);
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: var(--lh-h3);
}

.contact-details-gate {
  display: grid;
  grid-template-columns: var(--control-icon-m) minmax(0, 1fr);
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--info-surface);
  color: var(--foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
}

.contact-details-gate[hidden] {
  display: none;
}

.contact-details-gate > .hz-icon {
  color: var(--primary);
  font-size: var(--control-icon-m);
}

.contact-details-content {
  display: grid;
  gap: var(--space-5);
}

.contact-details-content[hidden] {
  display: none;
}

.contact-login-shortcut {
  display: none;
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
}

.contact-login-shortcut[hidden] {
  display: none;
}

.contact-login-shortcut a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.contact-email-input-row,
.contact-code-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
}

.contact-email-input-row .btn,
.contact-code-row .btn {
  min-width: 8.75rem;
  white-space: nowrap;
}

.contact-email-verification {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--background-subtle);
  animation: contact-verification-enter 160ms ease;
}

.contact-email-verification[hidden],
.contact-verification-success[hidden] {
  display: none;
}

.contact-verification-heading {
  display: grid;
  grid-template-columns: var(--control-icon-l) minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
}

.contact-verification-icon {
  color: var(--primary);
  font-size: var(--control-icon-l);
}

.contact-verification-kicker,
.contact-verification-title,
.contact-verification-copy {
  margin: 0;
}

.contact-verification-kicker {
  color: var(--primary);
  font-size: var(--fs-xs);
  font-weight: 600;
  line-height: var(--lh-xs);
}

.contact-verification-title {
  color: var(--foreground);
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: var(--lh-h3);
}

.contact-verification-copy {
  display: grid;
  gap: var(--space-1);
  color: var(--muted-foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
  overflow-wrap: anywhere;
}

.contact-verification-copy strong {
  color: var(--foreground);
  font-weight: 600;
}

.contact-code-field {
  display: grid;
  gap: var(--space-2);
}

.contact-code-row .btn {
  min-height: var(--control-h-l);
}

.contact-code-input {
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: 0.45em;
  text-align: center;
  text-indent: 0.45em;
}

.contact-verification-status {
  min-height: var(--lh-xs-size);
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
}

.contact-verification-status[data-state="info"] {
  color: var(--muted-foreground);
}

.contact-verification-status[data-state="error"] {
  color: var(--destructive);
}

.contact-verification-alternatives {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

.contact-verification-alternatives .btn {
  color: var(--muted-foreground);
}

.contact-verification-alternatives .btn:hover:not(:disabled),
.contact-verification-alternatives .btn:focus-visible {
  color: var(--foreground);
}

.contact-verification-success {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  background: var(--success-surface);
  color: var(--foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
}

.contact-verification-success > .hz-icon {
  color: var(--success);
  font-size: var(--control-icon-m);
}

.contact-label-row {
  justify-content: space-between;
  gap: var(--space-3);
}

.contact-character-count {
  flex-shrink: 0;
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
  white-space: nowrap;
}

.contact-body-input {
  min-height: 14rem;
  resize: vertical;
}

.contact-field-message {
  min-height: var(--lh-xs-size);
  color: var(--destructive);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
}

.contact-attachment-fieldset {
  display: grid;
  min-width: 0;
  margin: 0;
  padding: 0;
  gap: var(--space-2);
  border: 0;
}

.contact-attachment-fieldset legend {
  margin-bottom: var(--space-1);
  padding: 0;
}

.contact-file-picker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  min-width: 0;
}

.contact-file-picker .btn {
  flex: 0 0 auto;
  cursor: pointer;
}

.contact-file-trigger[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

.contact-file-input:focus-visible + .contact-file-picker .btn {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.contact-file-picker .hz-icon {
  font-size: var(--control-icon-s);
}

.contact-file-summary {
  min-width: 0;
  color: var(--muted-foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
  overflow-wrap: anywhere;
}

.contact-file-list {
  display: grid;
  gap: var(--space-1);
}

.contact-file-row {
  justify-content: space-between;
  min-width: 0;
  gap: var(--space-3);
  padding-block: var(--space-2);
  border-bottom: 1px solid var(--border);
}

.contact-file-meta {
  min-width: 0;
  gap: var(--space-2);
}

.contact-file-name {
  min-width: 0;
  overflow: hidden;
  color: var(--foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-file-size {
  flex-shrink: 0;
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
  white-space: nowrap;
}

.contact-file-remove {
  flex-shrink: 0;
}

.contact-file-remove .hz-icon {
  font-size: var(--control-icon-s);
}

.contact-privacy-note {
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
}

.contact-privacy-note a,
.contact-detail-section a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.contact-submit-feedback {
  min-height: var(--lh-sm-size);
}

.contact-submit-feedback .alert {
  margin: 0;
}

.contact-form-actions {
  justify-content: flex-end;
}

.contact-support-rail {
  display: grid;
  gap: var(--space-4);
}

.contact-guide-list {
  display: grid;
  gap: 0;
}

.contact-guide-row {
  display: grid;
  grid-template-columns: var(--control-icon-m) minmax(0, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--border);
}

.contact-guide-row:first-child {
  padding-top: 0;
}

.contact-guide-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-guide-row > .hz-icon {
  color: var(--muted-foreground);
  font-size: var(--control-icon-m);
}

.contact-guide-row strong {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
}

.contact-guide-row p,
.contact-account-state {
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
}

.contact-account-state {
  display: grid;
  gap: var(--space-3);
}

.contact-account-identity {
  color: var(--foreground);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: var(--lh-sm);
  overflow-wrap: anywhere;
}

.contact-history {
  margin-top: var(--space-stack-lg);
}

.contact-history-content {
  display: grid;
  grid-template-columns: minmax(15rem, 20rem) minmax(0, 1fr);
  min-height: 24rem;
  padding: 0;
}

.contact-inquiry-list {
  max-height: 38rem;
  overflow-y: auto;
  border-right: 1px solid var(--border);
}

.contact-inquiry-row {
  display: grid;
  width: 100%;
  min-width: 0;
  gap: var(--space-1-5);
  padding: var(--space-4);
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--foreground);
  text-align: left;
  cursor: pointer;
}

.contact-inquiry-row:hover,
.contact-inquiry-row:focus-visible,
.contact-inquiry-row[aria-current="true"] {
  background: var(--hover-overlay);
}

.contact-inquiry-row:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: -2px;
}

.contact-inquiry-row-head,
.contact-inquiry-row-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  gap: var(--space-2);
}

.contact-inquiry-row-title {
  min-width: 0;
  overflow: hidden;
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: var(--lh-sm);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-inquiry-row-reference,
.contact-inquiry-row-date,
.contact-detail-reference,
.contact-detail-date,
.contact-reply-meta {
  color: var(--muted-foreground);
  font-size: var(--fs-xs);
  line-height: var(--lh-xs);
}

.contact-status {
  flex-shrink: 0;
  width: fit-content;
  white-space: nowrap;
}

.contact-status[data-status="new"] {
  border-color: var(--warning);
}

.contact-status[data-status="in_progress"] {
  border-color: var(--primary);
}

.contact-status[data-status="answered"] {
  border-color: var(--success);
}

.contact-inquiry-detail {
  padding: var(--space-6);
}

.contact-detail {
  display: grid;
  gap: var(--space-5);
}

.contact-detail-heading {
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-detail-title {
  margin: var(--space-1) 0 0;
  font-size: var(--fs-h2);
  line-height: var(--lh-h2);
  overflow-wrap: anywhere;
}

.contact-detail-meta {
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.contact-detail-section {
  display: grid;
  gap: var(--space-3);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

.contact-detail-section h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: var(--lh-sm);
}

.contact-detail-body,
.contact-reply-body {
  color: var(--foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.contact-attachment-links,
.contact-reply-list {
  display: grid;
  gap: var(--space-2);
}

.contact-attachment-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--foreground);
  font-size: var(--fs-sm);
  text-decoration: none;
}

.contact-attachment-link:hover,
.contact-attachment-link:focus-visible {
  border-color: var(--primary);
  background: var(--hover-overlay);
}

.contact-attachment-link-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-reply {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  border-left: 2px solid var(--success);
  background: var(--surface);
}

.contact-reply-heading {
  justify-content: space-between;
  gap: var(--space-3);
}

.contact-reply-author {
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: var(--lh-sm);
}

.contact-state-placeholder {
  padding: var(--space-6);
  color: var(--muted-foreground);
  font-size: var(--fs-sm);
  line-height: var(--lh-sm);
  text-align: center;
}

.contact-error-state {
  color: var(--destructive);
}

@media (max-width: 1024px) {
  .contact-main-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-support-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-login-shortcut:not([hidden]) {
    display: block;
  }
}

@media (max-width: 640px) {
  .contact-shell {
    width: min(calc(100% - (var(--space-4) * 2)), var(--content-max));
    padding-block: var(--space-8) var(--space-10);
  }

  .contact-main-grid,
  .contact-support-rail {
    gap: var(--space-4);
  }

  .contact-support-rail,
  .contact-history-content {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-email-input-row,
  .contact-code-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-email-input-row .btn,
  .contact-code-row .btn {
    width: 100%;
  }

  .contact-email-verification {
    padding: var(--space-4);
  }

  .contact-form-actions .btn {
    width: 100%;
  }

  .contact-history .card-header--split {
    align-items: flex-start;
  }

  .contact-inquiry-list {
    max-height: 24rem;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .contact-inquiry-detail {
    padding: var(--space-4);
  }

  .contact-detail-heading {
    flex-direction: column;
  }
}

@keyframes contact-verification-enter {
  from {
    opacity: 0;
    transform: translateY(calc(var(--space-1) * -1));
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-email-verification {
    animation: none;
  }
}