:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #65717f;
  --paper: #f7f4ed;
  --card: #ffffff;
  --line: #d9d6cc;
  --navy: #173f5f;
  --cyan: #22a6b3;
  --formal: #176b45;
  --formal-bg: #e5f5ec;
  --candidate: #825513;
  --candidate-bg: #fff2d8;
  --reject: #9f2f2f;
  --focus: #f4c542;
  --shadow: 0 16px 40px rgb(23 32 42 / 8%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 100% 0%, rgb(34 166 179 / 10%), transparent 30rem),
    var(--paper);
}

button,
textarea,
input {
  font: inherit;
}

a {
  color: var(--navy);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 0.5rem;
  color: white;
  background: var(--navy);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.app-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.loading,
.fatal {
  max-width: 48rem;
  margin: 5rem auto;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--card);
}

.fatal {
  border-color: #e2abab;
}

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: end;
  padding: 1.25rem 0 1.75rem;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--navy);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 18ch;
  margin-bottom: 0.65rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 6vw, 4.4rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

h2 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.25rem, 3vw, 1.8rem);
}

.lede {
  max-width: 68ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
}

.button,
.decision-button {
  min-height: 2.6rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  color: var(--ink);
  background: var(--card);
  cursor: pointer;
}

.button:hover,
.decision-button:hover {
  border-color: var(--navy);
}

.button.primary {
  border-color: var(--navy);
  color: #fff;
  background: var(--navy);
}

.dataset-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.25rem;
  margin: 1rem 0 2rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.dataset-strip code {
  color: var(--ink);
}

.status {
  min-height: 1.5rem;
  margin: -1rem 0 1rem;
  color: var(--formal);
  font-size: 0.9rem;
}

.status.error {
  color: var(--reject);
}

.empty-state {
  max-width: 52rem;
  margin: 4rem auto;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px dashed #aca89d;
  border-radius: 1rem;
  text-align: center;
  background: rgb(255 255 255 / 55%);
}

.empty-state strong {
  display: block;
  margin-bottom: 0.65rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
}

.empty-state p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}

.finding-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr));
  gap: 1rem;
}

.finding-card,
.panel {
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--card);
  box-shadow: var(--shadow);
}

.finding-card {
  display: flex;
  flex-direction: column;
  min-height: 16rem;
  padding: 1.15rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.65rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge.formal {
  color: var(--formal);
  background: var(--formal-bg);
}

.badge.candidate {
  color: var(--candidate);
  background: var(--candidate-bg);
}

.badge.ap {
  color: var(--navy);
  background: #e9f0f5;
}

.badge.reviewed {
  color: #fff;
  background: var(--navy);
}

.finding-card h2 {
  font-size: 1.15rem;
  line-height: 1.3;
}

.card-meta {
  display: grid;
  gap: 0.25rem;
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.card-summary {
  color: var(--muted);
  line-height: 1.5;
}

.finding-link {
  align-self: flex-start;
  margin-top: auto;
  font-weight: 750;
}

.claim-boundary {
  margin: 1rem 0 1.5rem;
  padding: 0.85rem 1rem;
  border-left: 4px solid var(--navy);
  background: rgb(255 255 255 / 65%);
  color: var(--muted);
  line-height: 1.45;
}

.claim-boundary.candidate {
  border-left-color: var(--candidate);
  background: var(--candidate-bg);
  color: #68440e;
}

.back-link {
  display: inline-block;
  margin: 0 0 1.25rem;
  font-weight: 700;
}

.finding-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
}

.finding-heading h1 {
  max-width: 22ch;
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.finding-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(270px, 0.75fr);
  gap: 1rem;
  align-items: start;
}

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

.panel {
  padding: 1.1rem;
}

.panel-label {
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.formula {
  display: block;
  overflow-x: auto;
  padding: 0.9rem;
  border-radius: 0.55rem;
  color: #f3f8fa;
  background: #142d3d;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

.bombadil {
  overflow-x: auto;
  margin: 0;
  padding: 0.9rem;
  border: 1px solid #d5e0e5;
  border-radius: 0.55rem;
  background: #f4f8fa;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.84rem;
  line-height: 1.55;
  white-space: pre;
}

.step-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.15rem 0.15rem 0.75rem;
}

.step-tab {
  flex: 0 0 auto;
  min-width: 9rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  text-align: left;
  color: var(--ink);
  background: var(--card);
  cursor: pointer;
}

.step-tab[aria-selected="true"] {
  border-color: var(--navy);
  color: #fff;
  background: var(--navy);
}

.step-tab small {
  display: block;
  margin-top: 0.2rem;
  opacity: 0.78;
}

.screenshot-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: #e9e7e0;
}

.screenshot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.focus-box {
  position: absolute;
  border: clamp(2px, 0.35vw, 5px) solid var(--focus);
  border-radius: 0.25rem;
  box-shadow:
    0 0 0 2px rgb(23 32 42 / 65%),
    0 0 0 9999px rgb(23 32 42 / 10%);
  pointer-events: none;
}

.focus-label {
  position: absolute;
  left: 0;
  bottom: calc(100% + 0.3rem);
  max-width: min(24rem, 80vw);
  padding: 0.3rem 0.45rem;
  border-radius: 0.3rem;
  color: #17202a;
  background: var(--focus);
  font-size: clamp(0.62rem, 1.2vw, 0.78rem);
  font-weight: 800;
  white-space: nowrap;
}

.screenshot-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1rem;
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.transition {
  margin: 1rem 0 0;
  padding: 0.8rem;
  border-radius: 0.55rem;
  background: #f4f2ec;
  line-height: 1.5;
}

.transition strong {
  color: var(--navy);
}

.fact-list {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
}

.fact {
  display: grid;
  grid-template-columns: minmax(6.5rem, 0.35fr) 1fr;
  gap: 0.75rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--line);
  font-size: 0.87rem;
}

.fact dt {
  color: var(--muted);
}

.fact dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.decision-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
}

.decision-button[aria-pressed="true"] {
  border-color: var(--navy);
  color: #fff;
  background: var(--navy);
}

.decision-button[data-decision="reject"][aria-pressed="true"] {
  border-color: var(--reject);
  background: var(--reject);
}

.decision-button[data-decision="unsure"][aria-pressed="true"] {
  border-color: var(--candidate);
  background: var(--candidate);
}

.note-label {
  display: block;
  margin: 1rem 0 0.4rem;
  font-weight: 750;
}

.note {
  width: 100%;
  min-height: 8rem;
  resize: vertical;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  color: var(--ink);
  background: #fff;
  line-height: 1.5;
}

.review-hint {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.finding-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
}

.finding-nav a {
  font-weight: 700;
}

.source-link {
  font-size: 0.82rem;
  font-weight: 700;
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 1.2rem, 1180px);
    padding-top: 1rem;
  }

  .masthead,
  .finding-heading,
  .finding-layout {
    grid-template-columns: 1fr;
  }

  .toolbar {
    justify-content: flex-start;
  }

  .decision-group {
    grid-template-columns: 1fr;
  }

  .fact {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}