@import url("https://fonts.googleapis.com/css2?family=Fraunces:wght@600;700&family=Instrument+Sans:wght@400;500;600;700&display=swap");

/* Minimal, self-contained styling for the OED demo pages. */

:root {
  color-scheme: light;
  --font-sans: "Instrument Sans", "Segoe UI", Helvetica, Arial, sans-serif;
  --font-serif: "Fraunces", "Georgia", "Times New Roman", serif;

  --ink: #1f2a37;
  --muted: #5b6673;
  --bg: #eef1f5;
  --panel: #ffffff;

  --accent: #8b3a3a;
  --accent-strong: #6d2b2b;
  --accent-soft: rgba(139, 58, 58, 0.14);

  --line: rgba(31, 42, 55, 0.12);
  --shadow-lg: 0 22px 50px rgba(31, 42, 55, 0.12);
  --shadow: 0 12px 24px rgba(31, 42, 55, 0.08);

  --radius-lg: 26px;
  --radius: 18px;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(140deg, rgba(139, 58, 58, 0.06) 0%, transparent 55%),
    repeating-linear-gradient(0deg, rgba(139, 58, 58, 0.02), rgba(139, 58, 58, 0.02) 1px, transparent 1px, transparent 6px),
    var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  display: flex;
  justify-content: center;
  padding: 2.5rem 1.5rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
  font-weight: 650;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

.shell {
  width: min(1050px, 100%);
  background: var(--panel);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  border: 1px solid rgba(31, 42, 55, 0.08);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: fade-up 0.6s ease-out both;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.nav-brand {
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  justify-content: flex-end;
  font-size: 0.9rem;
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid rgba(31, 42, 55, 0.08);
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.text-link {
  color: var(--muted);
  font-weight: 550;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--accent-strong);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.75rem;
  color: var(--accent-strong);
  font-weight: 750;
}

h1 {
  font-family: var(--font-serif);
  margin: 0.45rem 0 0.8rem;
  font-size: clamp(2.1rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h2 {
  font-family: var(--font-serif);
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

p {
  margin: 0;
  line-height: 1.65;
}

.lede {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 1.35rem;
}

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

.small {
  font-size: 0.92rem;
}

.hero {
  padding-bottom: 1.75rem;
  border-bottom: 1px solid rgba(31, 42, 55, 0.08);
  margin-bottom: 2.25rem;
}

.hero .lede {
  max-width: 680px;
}

.section {
  margin-top: 2.75rem;
  scroll-margin-top: 120px;
  animation: fade-up 0.7s ease-out both;
}

.section:nth-of-type(2) {
  animation-delay: 0.05s;
}

.section:nth-of-type(3) {
  animation-delay: 0.1s;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(139, 58, 58, 0.18);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 750;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.tag--live {
  border-color: rgba(16, 185, 129, 0.25);
  background: rgba(16, 185, 129, 0.12);
  color: #065f46;
}

.tag--local {
  border-color: rgba(59, 130, 246, 0.25);
  background: rgba(59, 130, 246, 0.12);
  color: #1e3a8a;
}

.tag--upcoming {
  border-color: rgba(107, 114, 128, 0.28);
  background: rgba(107, 114, 128, 0.12);
  color: rgba(55, 65, 81, 0.95);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow);
  margin-top: 1.35rem;
}

.cta-panel {
  background: linear-gradient(120deg, rgba(139, 58, 58, 0.12), rgba(255, 255, 255, 0.9));
  border-color: rgba(139, 58, 58, 0.25);
}

.actions,
.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.row {
  align-items: flex-end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 240px;
  flex: 1 1 240px;
}

.field.compact {
  min-width: 160px;
  flex: 0 1 160px;
}

.field span {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 650;
}

input[type="text"],
input[type="url"],
input[type="number"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  border: 1px solid rgba(31, 42, 55, 0.16);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
}

input[type="file"] {
  width: 100%;
  padding: 0.6rem 0.4rem;
  border-radius: 12px;
  border: 1px dashed rgba(31, 42, 55, 0.22);
  background: rgba(255, 255, 255, 0.75);
}

input:focus-visible {
  outline: 3px solid rgba(139, 58, 58, 0.22);
  outline-offset: 2px;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.7rem 1.25rem;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 10px 18px rgba(31, 42, 55, 0.14);
}

.button:hover,
.button:focus-visible {
  background: var(--accent-strong);
  box-shadow: 0 14px 24px rgba(31, 42, 55, 0.18);
}

.button.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(31, 42, 55, 0.18);
  box-shadow: none;
}

.button.secondary:hover,
.button.secondary:focus-visible {
  background: rgba(139, 58, 58, 0.08);
  border-color: rgba(139, 58, 58, 0.25);
  box-shadow: none;
}

.button.small {
  padding: 0.55rem 1.05rem;
  font-size: 0.95rem;
}

.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  border-radius: 999px;
  border: 1px solid rgba(31, 42, 55, 0.18);
  background: rgba(255, 255, 255, 0.85);
  overflow: hidden;
}

.view-toggle {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 750;
  padding: 0.55rem 1.05rem;
}

.view-toggle + .view-toggle {
  border-left: 1px solid rgba(31, 42, 55, 0.14);
}

.view-toggle:hover,
.view-toggle:focus-visible {
  background: rgba(139, 58, 58, 0.08);
  color: var(--accent-strong);
}

.view-toggle[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

button[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

.details {
  margin-top: 1rem;
}

.details summary {
  cursor: pointer;
  color: var(--accent-strong);
  font-weight: 750;
}

.check {
  display: inline-flex;
  gap: 0.55rem;
  align-items: center;
  padding: 0.55rem 0.85rem;
  border: 1px solid rgba(31, 42, 55, 0.14);
  border-radius: 999px;
  background: rgba(139, 58, 58, 0.06);
}

.grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  background: var(--panel);
}

.card:hover {
  border-color: rgba(139, 58, 58, 0.22);
}

.card-title {
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.list {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.list li {
  margin: 0.4rem 0;
}

.steps {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.step {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  background: rgba(255, 255, 255, 0.9);
}

.step-number {
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.22em;
  color: var(--accent-strong);
  margin-bottom: 0.5rem;
}

.step-title {
  font-weight: 750;
  margin-bottom: 0.45rem;
}

.metrics {
  margin-top: 1.1rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.metric {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.9);
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 750;
}

.metric-label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.4rem;
  margin-bottom: 0.5rem;
}

.card--disabled {
  opacity: 0.75;
}

.footer {
  margin-top: 2rem;
  text-align: center;
}

.canvas-wrap {
  border: 1px solid rgba(31, 42, 55, 0.12);
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.canvas-wrap canvas,
.canvas-wrap img {
  display: block;
  width: 100%;
  height: auto;
}

.legend {
  border: 1px solid rgba(31, 42, 55, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  padding: 0.85rem 0.9rem;
}

.canvas-wrap .legend {
  margin: 0.9rem;
}

@media (max-width: 640px) {
  .canvas-wrap .legend {
    margin: 0.6rem;
  }
}

.legend-title {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 750;
  margin-bottom: 0.55rem;
}

.legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.92rem;
  color: var(--ink);
}

.legend-swatch {
  width: 14px;
  height: 14px;
  display: inline-block;
  flex: 0 0 auto;
}

.legend-swatch.circle {
  border-radius: 999px;
}

.legend-swatch.square {
  border-radius: 3px;
}

.legend-swatch.filled {
  background: #111;
  border: 1.5px solid #fff;
}

.legend-swatch.hollow {
  background: #fff;
  border: 1.5px solid #111;
}

.legend-swatch.outline {
  background: transparent;
  border: 1.8px solid #111;
}

.legend-swatch.star {
  background: #ffd92f;
  border: 1.4px solid #111;
  clip-path: polygon(
    50% 0%,
    61% 35%,
    98% 35%,
    68% 57%,
    79% 92%,
    50% 70%,
    21% 92%,
    32% 57%,
    2% 35%,
    39% 35%
  );
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Matching UI (pair cards). */
.pair-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.85rem;
}

.pair {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.05rem;
  background: rgba(255, 255, 255, 0.88);
}

.pair.is-active {
  border-color: rgba(139, 58, 58, 0.35);
  box-shadow: 0 0 0 3px rgba(139, 58, 58, 0.18);
}

.pair-top {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
}

.pair-names {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  min-width: 0;
  flex: 1;
}

.pair-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(31, 42, 55, 0.6);
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.pair-value {
  font-weight: 650;
  word-break: break-word;
  line-height: 1.35;
}

.pair-score {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.pill {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(139, 58, 58, 0.18);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 750;
  font-size: 0.75rem;
}

.score {
  font-weight: 850;
}

.pair-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.85rem;
}

.choice {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  border: 1px solid rgba(31, 42, 55, 0.14);
  border-radius: 999px;
  background: rgba(31, 42, 55, 0.02);
  color: var(--accent-strong);
  font-weight: 800;
  cursor: pointer;
  user-select: none;
}

.choice input {
  margin: 0;
}

.choice.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

@media (max-width: 850px) {
  .shell {
    padding: 2.25rem 1.75rem;
  }

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

  .nav-links {
    justify-content: flex-start;
  }

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

  .pair-top {
    flex-direction: column;
  }

  .pair-names {
    grid-template-columns: 1fr;
  }
}