html[data-theme="light"] {
  --bg: #fff;
  --ink: #0a0a0a;
  --muted: #5c5c5c;
  --line: #0a0a0a;
  --fill: #fff;
  --hover-bg: #0a0a0a;
  --hover-ink: #fff;
  --up: #18794c;
  --down: #b42318;
  --flat: #5c5c5c;
}

html[data-theme="dark"] {
  --bg: #0a0a0a;
  --ink: #f3f3f3;
  --muted: #9a9a9a;
  --line: #f3f3f3;
  --fill: #0a0a0a;
  --hover-bg: #f3f3f3;
  --hover-ink: #0a0a0a;
  --up: #7dcea0;
  --down: #f2a4a4;
  --flat: #9a9a9a;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Archivo, system-ui, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

header,
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 2px solid var(--line);
}

footer {
  border-bottom: 0;
  border-top: 2px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

header nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  flex-shrink: 0;
}

header nav a:hover,
.theme-btn:hover,
footer a:hover {
  text-decoration: underline;
}

.theme-btn {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

main {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 64px;
}

.hero,
.panel {
  padding: 0 0 36px;
  margin: 0 0 36px;
  border-bottom: 2px solid var(--line);
}

.panel:last-of-type {
  border-bottom: 0;
  margin-bottom: 0;
}

.eyebrow,
.mini-label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.55;
  font-weight: 600;
}

h1 {
  margin: 0 0 12px;
  font-stretch: 125%;
  font-weight: 700;
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

h2 {
  margin: 0 0 8px;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
  font-weight: 700;
}

h3,
.tool-card-title {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.lede,
.tool-intro-copy,
.tool-section-copy,
.tool-detail-copy,
.tool-empty-state p,
.tool-card-copy p,
.tool-decision-copy p,
.tool-company,
.tool-status-text {
  margin: 0;
  color: var(--muted);
}

.lede {
  max-width: 40rem;
}

.tool-form,
.tool-empty-state,
.tool-section,
.tool-result-card {
  display: grid;
  gap: 16px;
  padding: 20px 0;
}

.tool-form {
  gap: 18px;
}

.tool-form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.tool-field {
  display: grid;
  gap: 8px;
}

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

.tool-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tool-form input,
.tool-form select,
.tool-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 2px solid var(--line);
  border-radius: 0;
  background: var(--fill);
}

.tool-form textarea {
  min-height: 168px;
  resize: vertical;
}

.tool-form input:focus,
.tool-form select:focus,
.tool-form textarea:focus {
  outline: none;
  background: var(--hover-bg);
  color: var(--hover-ink);
}

.tool-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.tool-checkbox-card {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 14px;
  border: 2px solid var(--line);
  cursor: pointer;
}

.tool-checkbox-card:hover {
  background: var(--hover-bg);
  color: var(--hover-ink);
}

.tool-checkbox-card input {
  width: 16px;
  height: 16px;
  min-height: 16px;
  padding: 0;
  margin: 0;
  accent-color: var(--ink);
}

.tool-form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.button,
.tool-source-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

.button:hover,
.button:focus-visible,
.tool-source-list a:hover {
  background: var(--bg);
  color: var(--ink);
}

.button:disabled {
  opacity: 0.45;
  cursor: wait;
}

.tool-results {
  display: grid;
  gap: 8px;
}

.tool-section {
  border-top: 2px solid var(--line);
}

.tool-section-header {
  display: grid;
  gap: 8px;
}

.tool-card-stack {
  display: grid;
  gap: 0;
}

.tool-result-card {
  border-top: 2px solid var(--line);
}

.tool-card-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.tool-card-copy {
  display: grid;
  gap: 6px;
}

.tool-meta-row,
.tool-source-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-pill,
.tool-inline-pill,
.tool-view-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border: 2px solid var(--line);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tool-pill.is-live,
.tool-inline-pill.is-up {
  color: var(--up);
  border-color: var(--up);
}

.tool-pill.is-down,
.tool-inline-pill.is-down {
  color: var(--down);
  border-color: var(--down);
}

.tool-pill.is-fallback,
.tool-inline-pill.is-flat {
  color: var(--flat);
}

.tool-meta-grid,
.tool-reason-grid,
.tool-decision-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tool-meta-card,
.tool-reason-card,
.tool-decision-card {
  padding: 14px 0;
  border-top: 1px solid color-mix(in srgb, var(--line) 35%, transparent);
}

.tool-meta-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.55;
}

.tool-reason-card h4,
.tool-decision-copy h4 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.tool-meter-track {
  position: relative;
  width: 100%;
  height: 8px;
  overflow: hidden;
  border: 2px solid var(--line);
  background: var(--fill);
}

.tool-meter-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--ink);
}

.tool-meter-label {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.tool-view-pill {
  margin-bottom: 10px;
}

.tool-note,
.tool-warning {
  padding: 12px 0;
  border-top: 1px solid color-mix(in srgb, var(--line) 35%, transparent);
  color: var(--muted);
}

.tool-warning {
  color: var(--down);
}

.tool-loading {
  position: relative;
}

.tool-loading::after {
  content: "";
  position: absolute;
  top: 8px;
  right: 0;
  width: 14px;
  height: 14px;
  border: 2px solid color-mix(in srgb, var(--line) 35%, transparent);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: tool-spin 0.85s linear infinite;
}

@keyframes tool-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 820px) {
  main {
    width: calc(100% - 32px);
    padding-top: 20px;
  }

  header,
  footer {
    padding: 14px 16px;
  }

  .tool-form-grid,
  .tool-checkbox-grid,
  .tool-meta-grid,
  .tool-reason-grid,
  .tool-decision-grid {
    grid-template-columns: 1fr;
  }

  .tool-form-actions,
  .tool-card-head {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  h1 {
    font-stretch: 100%;
  }
}