:root {
  --background: #fcfcfc;
  --surface: #ffffff;
  --text: #111111;
  --muted: #4b4b4b;
  --border: #cfcfcf;
  --border-strong: #111111;
  --error: #b42318;
  --success: #067647;
  --warning: #444444;
  --disabled: #9a9a9a;
}

body {
  background: var(--background);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

a:focus {
  outline: 2px solid var(--border-strong);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 10;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.skip-link:focus {
  top: 0.75rem;
}

.toast-container {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: min(calc(100% - 1.5rem), 28rem);
  transform: translateX(-50%);
  pointer-events: none;
}

.toast {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem 0.9rem;
  font-size: 0.95rem;
  opacity: 0;
  transform: translateY(0.5rem);
  transition: opacity 220ms ease, transform 220ms ease;
  pointer-events: auto;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast-success {
  border-color: var(--success);
  color: var(--success);
}

.toast-error {
  border-color: var(--error);
  color: var(--error);
}

.toast-info {
  border-color: var(--border-strong);
  color: var(--text);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-shell {
  width: min(100%, 76rem);
  margin: 0 auto;
  padding: 1rem 0.75rem 2rem;
}

.page-header,
.panel,
.notice-list {
  border: 1px solid var(--border);
  background: var(--surface);
}

.page-header,
.panel {
  padding: 1rem;
}

.page-header {
  margin-bottom: 1rem;
}

.app-shell-centered {
  min-height: calc(100vh - 9rem);
  display: flex;
  align-items: center;
}

.eyebrow {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.4rem;
}

h3 {
  font-size: 1rem;
}

.lead,
.section-heading p,
.field-note,
.criteria-text,
.field-message,
.metadata-item span,
.notice-list p,
.status-message {
  color: var(--muted);
}

.notice-list {
  display: grid;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
}

.panel + .panel {
  margin-top: 1rem;
}

.section-heading {
  margin-bottom: 1.25rem;
}

.status-region:empty {
  display: none;
}

.status-message {
  border: 1px solid var(--border);
  padding: 0.9rem 1rem;
  margin-bottom: 1rem;
}

.status-message.is-error {
  border-color: var(--error);
  color: var(--error);
}

.status-message.is-success {
  border-color: var(--success);
  color: var(--success);
}

.status-message.is-neutral {
  border-color: var(--border-strong);
  color: var(--text);
}

.form-grid,
.metadata-grid {
  display: grid;
  gap: 1rem;
}

.form-grid {
  grid-template-columns: 1fr;
}

.field-group,
.output-block,
.metadata-item {
  min-width: 0;
}

.field-group-wide {
  grid-column: 1 / -1;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.checkbox-group {
  justify-content: end;
}

label {
  font-weight: 600;
}

.optional {
  color: var(--muted);
  font-weight: 400;
}

input,
select,
textarea,
button {
  width: 100%;
  border-radius: 0;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
}

input,
select,
textarea {
  padding: 0.8rem 0.9rem;
}

textarea {
  min-height: 13rem;
  max-width: 100%;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  line-height: 1.45;
}

.output-textarea-compact {
  min-height: 5rem;
}

textarea,
input {
  overflow-wrap: anywhere;
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 2px solid var(--border-strong);
  outline-offset: 2px;
}

.input-error,
.input-error:focus {
  border-color: var(--error);
  outline-color: var(--error);
}

.error-text {
  min-height: 1.25rem;
  color: var(--error);
}

.field-note {
  font-size: 0.9rem;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 600;
}

.checkbox-label input {
  width: 1rem;
  height: 1rem;
  margin: 0;
}

.input-with-button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.inline-button {
  width: auto;
  min-width: 4.75rem;
  border-left: 0;
}

.strength-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.strength-pill {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0 0.75rem;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  white-space: nowrap;
}

.strength-pill-weak {
  border-color: var(--error);
  color: var(--error);
}

.strength-pill-medium {
  border-color: var(--border-strong);
  color: var(--text);
}

.strength-pill-strong {
  border-color: var(--success);
  color: var(--success);
}

.strength-pill-neutral {
  color: var(--muted);
}

.button-row,
.output-actions,
.compact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button-row {
  margin-top: 1.25rem;
}

button {
  width: auto;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-strong);
  text-decoration: none;
}

button:hover:not(:disabled) {
  background: #f4f4f4;
}

button:disabled {
  cursor: not-allowed;
  color: var(--disabled);
  border-color: var(--border);
  background: #f6f6f6;
}

.primary-button {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

.primary-button:hover:not(:disabled) {
  background: #222222;
}

.secondary-button {
  background: #ffffff;
  color: #111111;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0.75rem 1.5rem;
  color: var(--muted);
  text-align: center;
  font-size: 0.95rem;
}

.site-footer p + p {
  margin-top: 0.35rem;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus {
  text-decoration: underline;
}

.page-note {
  margin-top: 0.75rem;
  color: var(--muted);
}

.tool-grid {
  display: grid;
  gap: 1rem;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
  border: 1px solid var(--border);
  padding: 1rem;
}

.tool-card-copy {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.tool-card-copy p {
  color: var(--muted);
}

.tool-card-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  color: var(--muted);
}

.error-page {
  width: min(100%, 38rem);
  margin: 0 auto;
  text-align: center;
}

.centered-row {
  justify-content: center;
}

.metadata-grid {
  grid-template-columns: 1fr;
  border: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.metadata-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.metadata-item strong {
  overflow-wrap: anywhere;
}

.metadata-item:last-child {
  border-bottom: 0;
}

.output-stack {
  display: grid;
  gap: 1rem;
}

.output-block {
  border: 1px solid var(--border);
  padding: 1rem;
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.hidden {
  display: none;
}

@media (min-width: 761px) {
  .app-shell {
    padding: 2rem 1rem 4rem;
  }

  .toast-container {
    bottom: 1.25rem;
  }

  .site-footer {
    padding: 1.25rem 1rem 1.5rem;
  }

  .panel,
  .page-header,
  .notice-list {
    padding: 1.5rem;
  }

  .form-grid,
  .metadata-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .field-group-wide {
    grid-column: 1 / -1;
  }

  .metadata-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .tool-card {
    justify-content: space-between;
  }

  .metadata-item {
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
  }

  .metadata-item:nth-child(3n) {
    border-right: 0;
  }

  .metadata-item:nth-last-child(-n + 3) {
    border-bottom: 0;
  }

  .metadata-item:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 760px) {
  .metadata-item,
  .metadata-item:nth-child(3n) {
    border-right: 0;
  }

  .metadata-item:not(:last-child) {
    border-bottom: 1px solid var(--border);
  }

  .metadata-item:last-child {
    border-bottom: 0;
  }

  .output-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .button-row,
  .compact-row,
  .output-actions {
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .button-link {
    width: 100%;
  }

  .toast-container {
    width: min(calc(100% - 1rem), 28rem);
    bottom: 0.75rem;
  }
}