@font-face {
  font-family: "Roboto Slab";
  font-style: normal;
  font-weight: 600 700;
  font-display: swap;
  src: url("./fonts/roboto-slab-latin.woff2") format("woff2");
}

@font-face {
  font-family: Spectral;
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("./fonts/spectral-400-latin.woff2") format("woff2");
}

@font-face {
  font-family: Spectral;
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("./fonts/spectral-600-latin.woff2") format("woff2");
}

@font-face {
  font-family: Spectral;
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("./fonts/spectral-700-latin.woff2") format("woff2");
}

:root {
  color-scheme: dark;
  --web-bg: #292524;
  --surface: #363231;
  --surface-raised: #3e3a39;
  --surface-strong: #464242;
  --detail: #3e3b3a;
  --ink: #ffffff;
  --ink-secondary: #bebbb9;
  --ink-faint: #b4b1af;
  --accent: #ff6719;
  --accent-hover: #ff8a4c;
  --accent-ink: #292524;
  --accent-soft: #ff9a5c;
  --heading: "Roboto Slab", Rockwell, "Courier New", serif;
  --text: Spectral, Georgia, serif;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --card-shadow: 0 18px 45px rgba(0, 0, 0, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--web-bg);
}

body {
  position: relative;
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 83% 18%, rgba(255, 103, 25, 0.045), transparent 32rem),
    var(--web-bg);
  font-family: var(--text);
  font-size: 19px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: 100;
  inset: 0;
  opacity: 0.025;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
  content: "";
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

a {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: 6px;
  color: var(--accent-ink);
  background: var(--accent);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-160%);
  transition: opacity 150ms ease, transform 150ms ease;
}

.skip-link:focus-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Jacob's Tech Tavern publication chrome, shared with the Roadmap. */
.site-header {
  border-bottom: 1px solid var(--detail);
}

.publication-chrome {
  position: sticky;
  top: 0;
  z-index: 50;
  isolation: isolate;
}

.publication-chrome::before {
  position: absolute;
  z-index: -2;
  inset: 0;
  background: rgba(41, 37, 36, 0.88);
  content: "";
}

.header-blur {
  position: absolute;
  z-index: -1;
  inset: 0 0 -20px;
  overflow: hidden;
  pointer-events: none;
}

.header-blur span {
  position: absolute;
  inset: 0;
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  -webkit-mask-image: linear-gradient(to bottom, #000 0 58%, transparent 78%);
  mask-image: linear-gradient(to bottom, #000 0 58%, transparent 78%);
}

.header-blur span:nth-child(2) {
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  -webkit-mask-image: linear-gradient(to bottom, transparent 35%, #000 58%, transparent 82%);
  mask-image: linear-gradient(to bottom, transparent 35%, #000 58%, transparent 82%);
}

.header-blur span:nth-child(3) {
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  -webkit-mask-image: linear-gradient(to bottom, transparent 52%, #000 70%, transparent 92%);
  mask-image: linear-gradient(to bottom, transparent 52%, #000 70%, transparent 92%);
}

.header-blur span:nth-child(4) {
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  -webkit-mask-image: linear-gradient(to bottom, transparent 66%, #000 82%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 66%, #000 82%, transparent 100%);
}

.publication-bar {
  width: 100%;
  min-height: 72px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
}

.publication-mark {
  justify-self: start;
  display: inline-flex;
}

.publication-logo {
  width: 48px;
  height: 48px;
  display: block;
  border-radius: 8px;
  object-fit: cover;
}

.publication-brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  justify-self: center;
  font-family: var(--heading);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
}

.publication-brand:hover,
.publication-brand:focus-visible,
.publication-nav a:hover,
.publication-nav a:focus-visible {
  color: var(--accent);
}

.source-button {
  min-height: 40px;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  padding: 0 1rem;
  border-radius: 8px;
  color: var(--accent-ink);
  background: var(--accent);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background 150ms ease;
}

.source-button:hover,
.source-button:focus-visible {
  color: var(--accent-ink);
  background: var(--accent-hover);
}

.publication-nav {
  width: 100%;
  min-height: 50px;
  display: flex;
  overflow-x: auto;
  border-top: 1px solid var(--detail);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  scrollbar-width: none;
}

.publication-nav::-webkit-scrollbar {
  display: none;
}

.publication-nav-track {
  width: max-content;
  min-width: max-content;
  min-height: 48px;
  margin: 0 auto;
  display: flex;
  align-items: stretch;
}

.publication-nav a,
.publication-nav span {
  min-height: 48px;
  display: inline-flex;
  flex: none;
  align-items: center;
  padding: 0 12px;
  white-space: nowrap;
}

.publication-nav a {
  text-decoration: none;
}

.publication-nav span[aria-current="page"] {
  color: var(--accent);
  font-weight: 700;
}

.shell {
  width: min(calc(100% - 2rem), 1280px);
  margin: 0 auto;
  padding: 4.5rem 0 5.5rem;
}

.landing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 520px);
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.hero {
  max-width: 660px;
}

h1 {
  max-width: 650px;
  margin: 0.9rem 0 0;
  font-family: var(--heading);
  font-size: clamp(2.45rem, 4.2vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
}

h1 em {
  color: var(--accent);
  font-style: normal;
}

.lede {
  max-width: 620px;
  margin: 1.25rem 0 0;
  color: #d9d9d9;
  font-size: 19px;
  line-height: 1.58;
}

.analyzer {
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 13px;
  background:
    linear-gradient(145deg, rgba(255, 103, 25, 0.035), transparent 42%),
    var(--surface);
  box-shadow: var(--card-shadow);
}

.drop-zone {
  width: 100%;
  min-height: 220px;
  display: grid;
  place-content: center;
  gap: 0.4rem;
  padding: 2rem;
  cursor: pointer;
  color: var(--ink-secondary);
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.13);
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

.drop-zone:hover,
.drop-zone.is-dragging {
  border-color: var(--accent);
  background: rgba(255, 103, 25, 0.055);
  transform: translateY(-2px);
}

.drop-zone:disabled {
  cursor: wait;
  opacity: 0.68;
}

.drop-zone strong {
  color: var(--ink);
  font-family: var(--heading);
  font-size: 1.15rem;
}

.drop-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin: 0 auto 0.4rem;
  border-radius: 9px;
  color: var(--accent-ink);
  background: var(--accent);
  font-family: var(--sans);
  font-size: 26px;
  font-weight: 800;
}

.ipa-help {
  display: table;
  margin: 0.9rem auto 0;
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
  text-decoration-color: rgba(255, 255, 255, 0.3);
  text-underline-offset: 3px;
}

.ipa-help:hover {
  color: var(--ink);
  text-decoration-color: var(--accent);
}

.status {
  min-height: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1rem;
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 13px;
}

.status[hidden] {
  display: none;
}

.status.is-error {
  color: #ff9aa5;
}

.cancel-analysis {
  min-height: 34px;
  margin-left: auto;
  padding: 0 0.75rem;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: var(--ink);
  background: var(--surface-raised);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
}

.cancel-analysis:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: var(--surface-strong);
}

.cancel-analysis[hidden] {
  display: none;
}

.local-library,
.comparison {
  margin-top: 4rem;
}

.library-head,
.comparison-head {
  display: flex;
  gap: 1.5rem;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--detail);
}

.library-head h2,
.comparison-head h2,
.comparison-section h3 {
  margin: 0;
  font-family: var(--heading);
  line-height: 1.2;
}

.library-head h2,
.comparison-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.library-head p,
.comparison-head p {
  margin: 0.35rem 0 0;
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 14px;
}

.library-head-actions,
.comparison-actions,
.compare-prompt > div,
.library-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.library-head button,
.comparison button,
.library-actions button,
.compare-prompt button {
  min-height: 40px;
  padding: 0 0.85rem;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: var(--ink);
  background: var(--surface-raised);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
}

.library-head button:hover,
.comparison button:hover,
.library-actions button:hover,
.compare-prompt button:hover {
  border-color: rgba(255, 255, 255, 0.28);
  background: var(--surface-strong);
}

.compare-prompt {
  display: grid;
  grid-template-columns: minmax(12rem, auto) minmax(16rem, 1fr) auto;
  gap: 1rem;
  align-items: center;
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 103, 25, 0.5);
  border-radius: 9px;
  background: rgba(255, 103, 25, 0.07);
  font-family: var(--sans);
  font-size: 13px;
}

.compare-prompt[hidden],
.library-message[hidden] {
  display: none;
}

.compare-prompt > span,
.library-message {
  color: var(--ink-secondary);
}

.library-message {
  margin: 1rem 0 0;
  font-family: var(--sans);
  font-size: 13px;
}

.library-message.is-error {
  color: #ff9aa5;
}

.library-list {
  display: grid;
  gap: 0.65rem;
  margin-top: 1rem;
}

.library-empty {
  margin: 0;
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 13px;
}

.library-row {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) repeat(2, minmax(8rem, 0.34fr)) auto;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9px;
  background: var(--surface);
}

.library-row.is-baseline {
  border-color: var(--accent);
  box-shadow: inset 3px 0 var(--accent);
}

.library-identity {
  min-width: 0;
}

.library-identity strong,
.library-identity span {
  display: block;
}

.library-identity strong {
  overflow: hidden;
  font-family: var(--heading);
  font-size: 1rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.library-identity span,
.library-date,
.library-metric span {
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 12px;
}

.library-identity span {
  overflow: hidden;
  margin-top: 0.15rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.library-metric {
  display: grid;
  gap: 0.08rem;
}

.library-metric strong {
  font-family: var(--sans);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.library-actions {
  justify-content: flex-end;
}

.library-actions button[data-action="compare"] {
  border-color: rgba(255, 103, 25, 0.5);
}

.library-actions button[data-action="delete"] {
  color: #ffadb4;
}

.comparison {
  margin-top: 0;
}

.comparison-head {
  align-items: center;
}

.comparison-head .back-link {
  min-height: 32px;
  margin-bottom: 0.7rem;
  padding: 0;
  border: 0;
  color: var(--accent-soft);
  background: transparent;
}

.comparison-head .back-link:hover {
  color: var(--accent);
  background: transparent;
}

.comparison-warning {
  margin: 1rem 0 0;
  padding: 0.75rem 0.9rem;
  border-left: 3px solid var(--accent);
  color: var(--ink-secondary);
  background: rgba(255, 103, 25, 0.07);
  font-family: var(--sans);
  font-size: 13px;
}

.comparison-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.comparison-metric {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.35rem 1rem;
  align-items: end;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9px;
  background: var(--surface);
}

.comparison-metric > span {
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 12px;
  text-transform: uppercase;
}

.comparison-metric strong {
  font-family: var(--heading);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-variant-numeric: tabular-nums;
}

.comparison-metric .metric-delta {
  grid-row: 1 / span 2;
  grid-column: 2;
  align-self: center;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}

.delta-positive {
  color: #ff8b74;
}

.delta-negative {
  color: #69d7a6;
}

.delta-neutral {
  color: var(--ink-secondary);
}

.comparison-section {
  margin-top: 2rem;
}

.comparison-empty {
  margin: 1.5rem 0 0;
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 14px;
}

.comparison-section h3 {
  font-size: 1.25rem;
}

.comparison-section-head {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.comparison-section-head span {
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.change-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 0.75rem;
}

.change-group,
.comparison-table-wrap {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9px;
  background: var(--surface);
}

.change-group h4 {
  margin: 0;
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.change-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.change-list li {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.15rem 0.75rem;
  padding: 0.68rem 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.change-list li:first-child {
  border-top: 0;
}

.change-list strong,
.change-list small {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.change-list strong {
  font-family: var(--sans);
  font-size: 13px;
}

.change-list b {
  grid-row: 1 / span 2;
  grid-column: 2;
  font-family: var(--sans);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.change-list small,
.empty-change {
  color: var(--ink-secondary);
  font-family: var(--sans);
  font-size: 11px;
}

.empty-change {
  margin: 0;
  padding: 1rem 0.8rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 13px;
}

.comparison-table th,
.comparison-table td {
  padding: 0.65rem 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  text-align: left;
}

.comparison-table thead th {
  border-top: 0;
  color: var(--ink-secondary);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.comparison-table td:not(:first-child),
.comparison-table th:not(:first-child) {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.result {
  margin-top: 1.5rem;
}

.result-bar {
  min-height: 58px;
  display: flex;
  gap: 1.25rem;
  align-items: center;
  justify-content: flex-end;
  padding: 0.45rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 10px;
  background: var(--surface);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.actions button {
  min-height: 40px;
  padding: 0 0.85rem;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  background: var(--surface-raised);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
}

.actions button:hover,
.actions button:focus-visible {
  border-color: rgba(255, 255, 255, 0.24);
  background: var(--surface-strong);
}

.actions .primary {
  color: var(--accent-ink);
  border-color: transparent;
  background: var(--accent);
}

.actions .primary:hover,
.actions .primary:focus-visible {
  color: var(--accent-ink);
  border-color: transparent;
  background: var(--accent-hover);
}

#report-frame {
  width: 100%;
  min-height: 900px;
  display: block;
  margin-top: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 10px;
  background: var(--web-bg);
}

/* A completed report becomes the product, rather than an app framed in a landing page. */
.has-result {
  overflow: hidden;
}

.has-result::before,
.has-result .site-header,
.has-result .skip-link,
.has-result .landing {
  display: none;
}

.has-result .local-library,
.has-result .comparison {
  display: none;
}

.is-comparing .landing,
.is-comparing .local-library,
.is-comparing .result {
  display: none;
}

.is-comparing .comparison {
  display: block;
}

.has-result .shell {
  width: 100%;
  max-width: none;
  padding: 0;
}

.has-result .result {
  margin: 0;
}

.has-result .result-bar {
  position: relative;
  z-index: 2;
  min-height: 58px;
  border-width: 0 0 1px;
  border-radius: 0;
  background: var(--web-bg);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}

.has-result #report-frame {
  height: calc(100vh - 58px);
  min-height: 0;
  margin: 0;
  border: 0;
  border-radius: 0;
}

@media (max-width: 900px) {
  .shell {
    padding-top: 3rem;
  }

  .landing {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .hero {
    max-width: 720px;
  }

  .analyzer {
    width: min(100%, 640px);
  }

  .library-row {
    grid-template-columns: minmax(0, 1fr) repeat(2, minmax(7rem, 0.35fr));
  }

  .library-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

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

@media (max-width: 720px) {
  body {
    font-size: 17px;
  }

  .publication-bar {
    min-height: 64px;
    padding: 0 12px;
    gap: 0.75rem;
  }

  .publication-logo {
    width: 42px;
    height: 42px;
  }

  .publication-brand {
    font-size: 1rem;
  }

  .source-button {
    min-height: 36px;
    padding: 0 0.75rem;
    font-size: 13px;
  }

  .shell {
    width: min(100% - 1.25rem, 1280px);
    padding: 2.5rem 0 3.5rem;
  }

  h1 {
    font-size: clamp(2.25rem, 11vw, 3.4rem);
  }

  .analyzer {
    padding: 1rem;
  }

  .result-bar,
  .has-result .result-bar {
    min-height: 58px;
    align-items: center;
    flex-direction: row;
    padding: 0.45rem;
  }

  .actions {
    width: 100%;
    justify-content: flex-end;
  }

  .actions button {
    flex: 1 1 auto;
  }

  .has-result #report-frame {
    height: calc(100vh - 58px);
  }

  .local-library {
    margin-top: 2.5rem;
  }

  .library-head,
  .comparison-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .compare-prompt {
    grid-template-columns: 1fr;
  }

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

  .library-identity,
  .library-actions,
  .library-date {
    grid-column: 1 / -1;
  }

  .comparison-actions {
    width: 100%;
  }

  .comparison-actions button {
    flex: 1 1 auto;
  }

  .comparison-metrics {
    grid-template-columns: 1fr;
  }

  .comparison-table-wrap {
    overflow-x: auto;
  }
}