:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-danger: #dc2626;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --radius: 0.5rem;
  --space: 1rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.container {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 var(--space) calc(var(--space) * 2);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: calc(var(--space) * 1.5);
}

.site-nav__brand {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-nav__links {
  display: flex;
  gap: var(--space);
}

.site-nav__links a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-nav__links a:hover {
  color: var(--color-text);
}

.flash {
  max-width: 64rem;
  margin: 0 auto var(--space);
  padding: 0.75rem var(--space);
  border-radius: var(--radius);
}

.flash--notice {
  background: #ecfdf5;
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.flash--alert {
  background: #fef2f2;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space);
}

.page-header h1 {
  margin: 0;
}

.page-header__actions {
  display: flex;
  gap: 0.5rem;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; margin-top: calc(var(--space) * 1.5); }

.button {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  background: var(--color-primary-hover);
}

.button--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.button--secondary:hover {
  background: var(--color-bg);
}

.button--danger {
  background: var(--color-danger);
}

.button--danger:hover {
  background: #b91c1c;
}

.button--link {
  background: none;
  color: var(--color-danger);
  padding: 0.5rem 0;
  align-self: end;
}

.button--link:hover {
  background: none;
  text-decoration: underline;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.05);
}

.table th,
.table td {
  padding: 0.75rem var(--space);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.table tr:last-child td {
  border-bottom: none;
}

.table__actions {
  text-align: right;
}

.details {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem var(--space);
  background: var(--color-surface);
  padding: var(--space);
  border-radius: var(--radius);
  margin: 0;
}

.details dt {
  font-weight: 600;
  color: var(--color-text-muted);
}

.details dd {
  margin: 0;
}

.results {
  display: grid;
  gap: var(--space);
  margin: 0;
}

.result-field {
  display: grid;
  grid-template-columns: 12rem 1fr 16rem;
  align-items: center;
  gap: var(--space);
  background: var(--color-surface);
  padding: var(--space);
  border-radius: var(--radius);
}

.result-field dt {
  font-weight: 600;
  color: var(--color-text-muted);
}

.result-field dd {
  margin: 0;
}

.result-field__value {
  font-size: 1.125rem;
  font-weight: 500;
}

.confidence {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.confidence__bar {
  flex: 1;
  height: 0.5rem;
  background: var(--color-border);
  border-radius: 999px;
  overflow: hidden;
}

.confidence__fill {
  height: 100%;
  border-radius: 999px;
}

.confidence__fill--high { background: var(--color-success); }
.confidence__fill--medium { background: var(--color-warning); }
.confidence__fill--low { background: var(--color-danger); }

.confidence__label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 0.125rem 0.625rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--pending { background: #f3f4f6; color: var(--color-text-muted); }
.badge--converting { background: #eff6ff; color: var(--color-primary); }
.badge--extracting { background: #fffbeb; color: var(--color-warning); }
.badge--completed { background: #ecfdf5; color: var(--color-success); }
.badge--failed { background: #fef2f2; color: var(--color-danger); }

.form {
  max-width: 64rem;
  background: var(--color-surface);
  padding: calc(var(--space) * 1.5);
  border-radius: var(--radius);
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: var(--space);
}

.form__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 5rem minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: end;
}

.form__field label {
  font-size: 0.875rem;
  font-weight: 600;
}

.form__field input,
.form__field select {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
}

.form__field input:focus,
.form__field select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -1px;
  border-color: var(--color-primary);
}

.form__actions {
  display: flex;
  gap: 0.75rem;
  margin-top: calc(var(--space) * 1.5);
}

.form__errors {
  padding: var(--space);
  margin-bottom: var(--space);
  background: #fef2f2;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius);
  color: var(--color-danger);
}

.form__errors h2 {
  font-size: 0.875rem;
  margin: 0 0 0.5rem;
}

.form__errors ul {
  margin: 0;
  padding-left: 1.25rem;
}

.rule-fields {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space);
  margin: 0 0 var(--space);
}

.empty-state {
  padding: calc(var(--space) * 3);
  text-align: center;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border-radius: var(--radius);
}

.processing-notice {
  padding: var(--space);
  background: #eff6ff;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  color: var(--color-primary);
  margin: var(--space) 0;
}

.processing-notice p {
  margin: 0;
}

.form__hint {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.form__hint--error {
  color: var(--color-danger);
  font-weight: 600;
}

.auth {
  max-width: 24rem;
  margin: calc(var(--space) * 3) auto;
}

.auth__links {
  margin-top: var(--space);
  text-align: center;
}

.auth__links a {
  color: var(--color-primary);
  text-decoration: none;
}

.site-nav__sign-out {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--color-text-muted);
  cursor: pointer;
}

.site-nav__sign-out:hover {
  color: var(--color-text);
}