:root {
  --color-bg: #f6f8fa;
  --color-surface: #ffffff;
  --color-surface-raised: #f3f4f6;
  --color-text: #1f2328;
  --color-neutral-200: #1f2328;
  --color-neutral-300: #1f2328;
  --color-neutral-400: #59636e;
  --color-neutral-500: #59636e;
  --color-accent: #7564d8;
  --color-accent-soft: rgb(117 100 216 / 13%);
  --color-on-accent: #ffffff;
  --color-divider: #d0d7de;
  --color-syntax-number: #0550ae;
  --color-syntax-string: #087f23;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color-scheme: light;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

:root[data-appearance="dark"] {
  --color-bg: #0d1117;
  --color-surface: #161b22;
  --color-surface-raised: #21262d;
  --color-text: #e6edf3;
  --color-neutral-200: #d9dbea;
  --color-neutral-300: #c9d1d9;
  --color-neutral-400: #aeb2c5;
  --color-neutral-500: #8b949e;
  --color-accent: #a99ce8;
  --color-accent-soft: rgb(169 156 232 / 20%);
  --color-on-accent: #0d1117;
  --color-divider: rgb(240 246 252 / 16%);
  --color-syntax-number: #9ecbff;
  --color-syntax-string: #7ee787;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-appearance]) {
    --color-bg: #0d1117;
    --color-surface: #161b22;
    --color-surface-raised: #21262d;
    --color-text: #e6edf3;
    --color-neutral-200: #d9dbea;
    --color-neutral-300: #c9d1d9;
    --color-neutral-400: #aeb2c5;
    --color-neutral-500: #8b949e;
    --color-accent: #a99ce8;
    --color-accent-soft: rgb(169 156 232 / 20%);
    --color-on-accent: #0d1117;
    --color-divider: rgb(240 246 252 / 16%);
    --color-syntax-number: #9ecbff;
    --color-syntax-string: #7ee787;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
}

a {
  color: var(--color-accent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-neutral-200);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.content-page {
  width: min(100% - 32px, 860px);
  margin: 0 auto;
  padding: 48px 0 28px;
}

.back-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 6px;
  font-weight: 700;
}

.content-kicker,
.last-updated {
  font-size: 0.95rem;
}

.content-kicker {
  margin: 36px 0 8px;
  color: var(--color-accent);
  font-weight: 800;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.last-updated {
  color: var(--color-neutral-500);
}

h1,
h2 {
  color: var(--color-neutral-200);
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: 28px;
}

h2 {
  margin: 30px 0 10px;
  font-size: 18px;
}

p {
  margin: 0 0 16px;
  color: var(--color-neutral-300);
}

.privacy-manage {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.privacy-manage:hover {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.error-document {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background:
    radial-gradient(
      circle at 50% 36%,
      color-mix(in srgb, var(--color-accent) 11%, transparent),
      transparent 38%
    ),
    var(--color-bg);
}

.error-page {
  display: grid;
  width: min(100% - 32px, 900px);
  flex: 1;
  place-items: center;
  margin: 0 auto;
  padding: 64px 0;
}

.error-card {
  width: 100%;
  max-width: 720px;
  text-align: center;
}

.error-brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  margin-bottom: 32px;
  color: var(--color-neutral-200);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

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

.error-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.error-code {
  margin: 0 0 12px;
  color: var(--color-accent);
  font-size: clamp(58px, 8vw, 68px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.error-card h1 {
  max-width: none;
  font-size: 32px;
}

.error-message {
  max-width: 620px;
  margin: 16px auto 0;
  color: var(--color-neutral-400);
  font-size: 16px;
}

.error-json {
  display: inline-block;
  margin: 28px 0 0;
  padding: 14px 22px;
  border: 1px solid var(--color-divider);
  border-radius: 10px;
  color: var(--color-neutral-500);
  background: var(--color-accent-soft);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.65;
  text-align: left;
  white-space: pre;
}

.error-json__key {
  color: var(--color-accent);
}

.error-json__number {
  color: var(--color-syntax-number);
}

.error-json__string {
  color: var(--color-syntax-string);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.error-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 22px;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  color: var(--color-on-accent);
  background: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}

.error-action:hover {
  color: var(--color-on-accent);
  background: var(--color-accent);
}

.error-action--secondary {
  color: var(--color-accent);
  background: transparent;
}

.error-action--secondary:hover {
  color: var(--color-neutral-200);
  background: var(--color-surface-raised);
}

.error-document .site-footer__inner {
  text-align: center;
}

.error-document .site-footer nav {
  justify-content: center;
}

.contact-page {
  padding-top: 42px;
}

.contact-page .back-link {
  margin-bottom: 24px;
}

.contact-intro {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--color-neutral-400);
  font-size: 1rem;
}

.contact-form {
  width: min(100%, 620px);
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.contact-field {
  display: grid;
  gap: 7px;
  color: var(--color-neutral-200);
  font-size: 0.9rem;
  font-weight: 600;
}

.contact-field input,
.contact-field select,
.contact-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 12px;
  border: 1px solid var(--color-divider);
  border-radius: 6px;
  color: var(--color-text);
  background: var(--color-surface);
  font: inherit;
  font-weight: 400;
}

.contact-field textarea {
  min-height: 128px;
  resize: vertical;
}

.contact-field input::placeholder,
.contact-field textarea::placeholder,
.contact-field select:invalid {
  color: var(--color-neutral-500);
  opacity: 1;
}

.contact-field option {
  color: var(--color-text);
  background: var(--color-surface);
}

.contact-form button {
  width: fit-content;
  min-height: 44px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  color: var(--color-bg);
  background: var(--color-neutral-200);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.contact-form button:hover {
  color: var(--color-on-accent);
  background: var(--color-accent);
}

.contact-page section {
  max-width: 720px;
}

.site-footer {
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface);
}

.site-footer__inner {
  width: min(100% - 32px, 860px);
  margin: 0 auto;
  padding: 22px 0 30px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.site-footer a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--color-accent);
  font-weight: 700;
}

.site-footer__copyright {
  margin: 10px 0 0;
  color: var(--color-neutral-500);
  font-size: 0.9rem;
}

.privacy-preferences {
  position: fixed;
  left: 50%;
  bottom: max(12px, env(safe-area-inset-bottom));
  z-index: 20;
  width: min(calc(100vw - 24px), 760px);
  transform: translateX(-50%);
  pointer-events: none;
}

.privacy-preferences [hidden] {
  display: none;
}

.privacy-banner,
.privacy-panel {
  width: 100%;
  border: 1px solid var(--color-divider);
  border-radius: 10px;
  background: var(--color-surface-raised);
  box-shadow: 0 10px 30px rgb(0 0 0 / 22%);
}

.privacy-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  pointer-events: none;
}

.privacy-panel {
  width: min(100%, 420px);
  margin-left: auto;
  padding: 16px;
}

.privacy-banner p,
.privacy-panel p {
  margin: 0;
  color: var(--color-neutral-300);
  font-size: 0.92rem;
  line-height: 1.5;
}

.privacy-panel {
  pointer-events: auto;
}

.privacy-banner a,
.privacy-banner button {
  pointer-events: auto;
}

.privacy-banner strong {
  color: var(--color-neutral-200);
  font-weight: 700;
}

.privacy-banner a {
  color: var(--color-accent);
}

.privacy-panel h2 {
  margin: 0 0 10px;
  color: var(--color-neutral-100);
  font-size: 1.1rem;
}

.privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: flex-start;
}

.privacy-choice-actions {
  flex-wrap: nowrap;
}

.privacy-panel-actions {
  margin-top: 12px;
}

.privacy-preferences button {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.privacy-preferences .privacy-choice {
  width: 138px;
  border-color: var(--color-divider);
  background: transparent;
  color: var(--color-neutral-200);
  font-weight: 650;
  white-space: nowrap;
}

.privacy-preferences .privacy-choice:hover,
.privacy-preferences .privacy-choice:focus-visible,
.privacy-preferences .privacy-close:hover,
.privacy-preferences .privacy-close:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.privacy-preferences .privacy-close {
  border-color: var(--color-divider);
  background: var(--color-surface-raised);
  color: var(--color-neutral-400);
  font-weight: 650;
}

@media (max-width: 520px) {
  .content-page,
  .error-page,
  .site-footer__inner {
    width: min(100% - 24px, 860px);
  }

  .content-page {
    padding-top: 28px;
  }

  h1 {
    font-size: 24px;
  }

  .error-page {
    padding: 40px 0;
  }

  .error-brand {
    margin-bottom: 24px;
  }

  .error-card h1 {
    font-size: 28px;
  }

  .error-message {
    font-size: 15px;
  }

  .error-json {
    max-width: 100%;
    padding: 12px 16px;
    font-size: 14px;
  }

  .error-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .error-action {
    width: 100%;
  }

  .privacy-preferences {
    bottom: max(12px, env(safe-area-inset-bottom));
    width: calc(100vw - 24px);
  }

  .privacy-banner {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding: 12px;
  }

  .privacy-banner p {
    font-size: 12.5px;
    line-height: 1.4;
  }

  .privacy-choice-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .privacy-preferences .privacy-choice {
    width: 100%;
  }

  .privacy-panel {
    width: 100%;
  }
}