:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #16a34a;
  --cp-danger: #dc2626;
  --cp-warning: #f59e0b;
  --cp-link: #0078d4;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
  --cp-card-shadow: 0 0 2px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.14);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
  --cp-card-shadow: 0 0 2px rgba(0, 0, 0, 0.32), 0 1px 2px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  color: var(--cp-text);
  background: var(--cp-bg);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--cp-link);
  text-underline-offset: 0.24em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  color: var(--cp-accent-hover);
}

a:focus-visible,
button:focus-visible,
[tabindex="-1"]:focus-visible {
  outline: 3px solid var(--cp-accent);
  outline-offset: 3px;
}

button {
  font: inherit;
}

h1,
h2,
h3,
p,
a {
  overflow-wrap: anywhere;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  z-index: 20;
  top: 0.5rem;
  left: 0.5rem;
  min-height: 44px;
  padding: 0.75rem 1rem;
  color: var(--cp-accent-fg);
  background: var(--cp-accent);
  border-radius: 0.625rem;
  transform: translateY(-160%);
}

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

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  background: var(--cp-bg);
  border-bottom: 1px solid var(--cp-border);
}

.header-inner {
  display: flex;
  width: min(100% - 2rem, 1120px);
  min-height: 64px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 0.75rem;
  color: var(--cp-text);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand:hover {
  color: var(--cp-accent);
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  color: var(--cp-accent-fg);
  background: var(--cp-accent);
  border-radius: 0.625rem;
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.75rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.header-nav a {
  display: inline-flex;
  min-height: 44px;
  padding: 0 0.75rem;
  align-items: center;
  color: var(--cp-text-muted);
  font-size: 0.825rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0.625rem;
}

.header-nav a:hover {
  color: var(--cp-accent);
  background: var(--cp-accent-soft);
}

.demo-nav {
  background: var(--cp-bg-elevated);
  border-top: 1px solid var(--cp-border);
}

.demo-nav-inner {
  display: flex;
  width: min(100% - 2rem, 1120px);
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-color: var(--cp-border-strong) var(--cp-bg-elevated);
}

.demo-nav a {
  display: inline-flex;
  flex: 0 0 auto;
  min-height: 40px;
  padding: 0 0.75rem;
  align-items: center;
  color: var(--cp-text-muted);
  font-size: 0.775rem;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.demo-nav a:hover {
  color: var(--cp-accent);
  background: var(--cp-accent-soft);
}

.demo-nav a[aria-current="page"] {
  color: var(--cp-accent-fg);
  background: var(--cp-accent);
}

main {
  width: min(100% - 2rem, 1000px);
  margin: 0 auto;
}

.masthead {
  display: grid;
  min-height: min(760px, calc(100vh - 64px));
  padding: clamp(5rem, 12vw, 9rem) 0;
  place-content: center;
  text-align: center;
}

.eyebrow,
.card-kicker,
.state-label,
.source-label,
.archive-label {
  margin: 0 0 0.75rem;
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 920px;
  margin: 0 auto;
  font-size: clamp(3.2rem, 10vw, 7rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

h1 span {
  color: var(--cp-accent);
}

.lead {
  max-width: 710px;
  margin: 2rem auto 0;
  color: var(--cp-text-muted);
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  line-height: 1.9;
  letter-spacing: 0.01em;
}

.masthead-link {
  display: inline-flex;
  min-height: 44px;
  margin: 2rem auto 0;
  align-items: center;
  gap: 0.5rem;
  color: var(--cp-text);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
}

.masthead-link:hover {
  color: var(--cp-accent);
}

.today-section,
.archive-section,
.how-section {
  scroll-margin-top: 1.5rem;
}

.today-section {
  padding: clamp(2rem, 5vw, 4rem) 0 clamp(5rem, 11vw, 8rem);
}

.section-heading {
  display: flex;
  margin-bottom: 1.5rem;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.section-heading h2,
.how-copy h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.quiet-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--cp-text-muted);
  font-size: 0.825rem;
  font-weight: 650;
}

.state-panel,
.byte-card {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  box-shadow: 0 1px 0 var(--cp-border);
}

.state-panel {
  display: grid;
  min-height: 240px;
  padding: clamp(1.5rem, 5vw, 2.75rem);
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 1.25rem;
  border-left: 4px solid var(--cp-link);
  border-radius: 1rem;
}

.state-panel[data-state="empty"],
.state-panel[data-state="rate-limit"] {
  border-left-color: var(--cp-warning);
}

.state-panel[data-state="malformed"],
.state-panel[data-state="network"],
.state-panel[data-state="api-error"] {
  border-left-color: var(--cp-danger);
}

.state-icon {
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  color: var(--cp-link);
  background: var(--cp-surface-soft);
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.state-panel[data-state="empty"] .state-icon,
.state-panel[data-state="rate-limit"] .state-icon {
  color: var(--cp-warning);
}

.state-panel[data-state="malformed"] .state-icon,
.state-panel[data-state="network"] .state-icon,
.state-panel[data-state="api-error"] .state-icon {
  color: var(--cp-danger);
}

.state-icon.is-spinning {
  animation: spin 0.9s linear infinite;
}

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

.state-copy {
  max-width: 680px;
}

.state-copy h3 {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  letter-spacing: -0.025em;
}

.state-copy > p:last-of-type {
  margin: 0.75rem 0 0;
  color: var(--cp-text-muted);
  line-height: 1.75;
}

.state-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.button,
.text-button,
.archive-toggle {
  display: inline-flex;
  min-height: 44px;
  padding: 0.625rem 1rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.625rem;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
}

.button {
  color: var(--cp-accent-fg);
  background: var(--cp-accent);
  border: 1px solid var(--cp-accent);
}

.button:hover {
  background: var(--cp-accent-hover);
  border-color: var(--cp-accent-hover);
}

.text-button,
.archive-toggle {
  color: var(--cp-text);
  background: var(--cp-surface);
  border: 1px solid var(--cp-border-strong);
  text-decoration: none;
}

.text-button:hover,
.archive-toggle:hover {
  color: var(--cp-accent-hover);
  background: var(--cp-accent-soft);
}

.byte-card {
  overflow: hidden;
  border-radius: 1rem;
}

.card-header,
.fact,
.source-panel,
.joke-block,
.card-footer {
  margin-right: clamp(1.25rem, 6vw, 3.5rem);
  margin-left: clamp(1.25rem, 6vw, 3.5rem);
}

.card-header {
  display: flex;
  padding: clamp(1.75rem, 5vw, 3rem) 0 1.5rem;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--cp-border);
}

.card-header h3,
.joke-block h3 {
  margin: 0;
  font-size: 1.1rem;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: end;
  gap: 0.75rem;
  color: var(--cp-text-muted);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.78rem;
}

.category {
  padding: 0.35rem 0.625rem;
  color: var(--cp-accent);
  background: var(--cp-accent-soft);
  border: 1px solid var(--cp-accent);
  border-radius: 0.625rem;
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 700;
}

.fact {
  padding: clamp(2rem, 6vw, 4rem) 0;
  font-size: clamp(1.45rem, 4vw, 2.25rem);
  font-weight: 650;
  line-height: 1.72;
  letter-spacing: -0.025em;
}

.source-panel {
  display: flex;
  padding: 1rem 1.125rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--cp-surface-soft);
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
}

.source-label {
  margin-bottom: 0.2rem;
  color: var(--cp-success);
}

.source-host {
  margin: 0;
  color: var(--cp-text);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.825rem;
}

.joke-block {
  display: grid;
  margin-top: 1.25rem;
  padding: 1.25rem 0;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  border-top: 1px solid var(--cp-border);
  border-bottom: 1px solid var(--cp-border);
}

.joke-symbol {
  margin: 0;
  color: var(--cp-accent);
  font-size: 1.5rem;
  line-height: 1;
}

.joke {
  margin: 0.5rem 0 0;
  color: var(--cp-text);
  line-height: 1.75;
}

.card-footer {
  display: flex;
  padding: 1.5rem 0 clamp(1.75rem, 5vw, 3rem);
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--cp-text-muted);
  font-size: 0.8rem;
}

.card-footer p {
  max-width: 560px;
  margin: 0;
  line-height: 1.65;
}

.archive-section {
  padding: clamp(4.5rem, 10vw, 8rem) 0;
  border-top: 1px solid var(--cp-border);
}

.archive-heading {
  margin-bottom: 0;
}

.archive-summary,
.archive-intro,
.quality-note,
.archive-empty {
  color: var(--cp-text-muted);
  line-height: 1.7;
}

.archive-summary {
  max-width: 280px;
  margin: 0;
  font-size: 0.8rem;
  text-align: right;
}

.archive-intro {
  max-width: 620px;
  margin: 1rem 0 0;
}

.quality-note {
  margin: 1rem 0 0;
  padding-left: 0.875rem;
  border-left: 2px solid var(--cp-border-strong);
  font-size: 0.8rem;
}

.archive-empty {
  margin: 2.5rem 0 0;
  padding: 2rem 0;
  border-top: 1px solid var(--cp-border);
  border-bottom: 1px solid var(--cp-border);
}

.archive-list {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  border-top: 1px solid var(--cp-border-strong);
}

.archive-card {
  display: grid;
  padding: clamp(2rem, 5vw, 3rem) 0;
  gap: 1.5rem;
  border-bottom: 1px solid var(--cp-border);
}

.archive-card-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.archive-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem 1rem;
}

.archive-date {
  color: var(--cp-text);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.8rem;
  font-weight: 700;
}

.archive-category {
  margin: 0;
  color: var(--cp-accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.archive-comment-link,
.archive-source {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--cp-text-muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.archive-fact {
  max-width: 880px;
  margin: 0;
  font-size: clamp(1.15rem, 2.8vw, 1.45rem);
  font-weight: 600;
  line-height: 1.85;
  letter-spacing: -0.012em;
}

.archive-joke {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 1rem;
}

.archive-label {
  margin: 0;
}

.archive-joke-copy {
  margin: 0;
  color: var(--cp-text-soft);
  line-height: 1.7;
}

.archive-source {
  width: fit-content;
}

.archive-action {
  display: flex;
  padding-top: 2rem;
  justify-content: center;
}

.archive-toggle {
  min-width: 180px;
}

.how-section {
  display: grid;
  padding: clamp(4.5rem, 10vw, 7rem) 0;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.8fr);
  gap: clamp(2rem, 8vw, 6rem);
  border-top: 1px solid var(--cp-border);
}

.how-copy > p:last-child {
  max-width: 620px;
  margin: 1.25rem 0 0;
  color: var(--cp-text-muted);
  line-height: 1.8;
}

.compact-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--cp-border-strong);
}

.compact-steps li {
  display: grid;
  min-height: 64px;
  padding: 0.75rem 0;
  grid-template-columns: 3rem 1fr;
  align-items: center;
  border-bottom: 1px solid var(--cp-border);
}

.compact-steps span {
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 0.75rem;
}

.compact-steps strong {
  font-size: 0.9rem;
}

.resource-links {
  display: flex;
  grid-column: 1 / -1;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--cp-border);
}

.resource-links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.site-footer {
  padding: 1.5rem 1rem;
  color: var(--cp-text-muted);
  background: var(--cp-bg-elevated);
  border-top: 1px solid var(--cp-border);
  font-size: 0.78rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .state-icon.is-spinning {
    animation: none;
  }
}

@media (max-width: 720px) {
  .header-inner,
  .demo-nav-inner,
  main {
    width: min(100% - 1.5rem, 1000px);
  }

  .header-nav a:first-child {
    display: none;
  }

  .masthead {
    min-height: 620px;
    padding: 4.5rem 0;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 5rem);
  }

  .section-heading,
  .card-header,
  .source-panel,
  .card-footer,
  .archive-card-header {
    align-items: stretch;
    flex-direction: column;
  }

  .archive-summary {
    max-width: none;
    text-align: left;
  }

  .state-panel {
    min-height: 260px;
    grid-template-columns: 1fr;
  }

  .state-actions,
  .state-actions > *,
  .source-panel .text-button {
    width: 100%;
  }

  .card-meta {
    justify-content: start;
  }

  .archive-joke {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

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

  .resource-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 460px) {
  .header-nav a:nth-child(2) {
    display: none;
  }

  .header-nav a {
    padding: 0 0.5rem;
  }

  .brand {
    gap: 0.5rem;
  }

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