@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  color-scheme: light;
  --portfolio-paper: #f7f8fa;
  --portfolio-surface: #ffffff;
  --portfolio-ink: #0b0d10;
  --portfolio-muted: #5d6573;
  --portfolio-line: #d9dee7;
  --portfolio-blue: #2563eb;
  --portfolio-header: rgba(247, 248, 250, 0.92);
  --portfolio-header-line: rgba(217, 222, 231, 0.92);
  --portfolio-solid-bg: #0b0d10;
  --portfolio-solid-text: #ffffff;
  --portfolio-font: 'IBM Plex Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --portfolio-display: 'Space Grotesk', 'PingFang SC', sans-serif;
  --portfolio-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

html[data-theme='dark'] {
  color-scheme: dark;
  --portfolio-paper: #0b1017;
  --portfolio-surface: #121a25;
  --portfolio-ink: #edf2f7;
  --portfolio-muted: #a7b2c1;
  --portfolio-line: #2a3645;
  --portfolio-blue: #7d9fff;
  --portfolio-header: rgba(11, 16, 23, 0.92);
  --portfolio-header-line: rgba(42, 54, 69, 0.94);
  --portfolio-solid-bg: #edf2f7;
  --portfolio-solid-text: #0b1017;
  --paper: #0b1017;
  --paper2: #111923;
  --ink: #edf2f7;
  --ink2: #b8c3d0;
  --muted: #96a3b2;
  --line: #2b3746;
  --panel: #121a25;
  --panel-2: #13201f;
  --card: #121a25;
  --accent: #62c8bb;
  --gold: #e0b45f;
  --gold2: #efc86f;
  --teal: #62c8bb;
  --teal2: #8bddcf;
  --crimson: #ed8178;
  --hard: #e47b70;
  --soft: #e1b35f;
  --clean: #62c8bb;
  --observe: #7d9fff;
  --shadow: rgba(0, 0, 0, 0.34);
}

html {
  scroll-padding-top: 84px;
}

body {
  padding-top: 64px !important;
  background-color: var(--portfolio-paper) !important;
  font-family: var(--portfolio-font) !important;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--portfolio-display) !important;
  letter-spacing: -0.025em !important;
}

.portfolio-nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  display: flex;
  width: 100%;
  height: 64px;
  padding: 0 max(20px, calc((100vw - 1180px) / 2));
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--portfolio-header-line);
  background: var(--portfolio-header);
  backdrop-filter: blur(18px);
}

.portfolio-nav a {
  color: var(--portfolio-ink) !important;
  text-decoration: none !important;
}

.portfolio-brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-family: var(--portfolio-display);
  font-size: 14px;
  font-weight: 700;
}

.portfolio-brand span {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 3px;
  color: var(--portfolio-solid-text);
  background: var(--portfolio-solid-bg);
  font-family: var(--portfolio-mono);
  font-size: 10px;
}

.portfolio-links {
  display: flex;
  gap: 25px;
  align-items: center;
}

.portfolio-links a {
  color: var(--portfolio-muted) !important;
  font-family: var(--portfolio-mono);
  font-size: 11px;
  text-decoration: underline !important;
  text-underline-offset: 4px;
}

.portfolio-links a:hover {
  color: var(--portfolio-blue) !important;
}

.article-skip {
  position: fixed;
  top: 8px;
  left: 12px;
  z-index: 1000;
  padding: 8px 12px;
  color: var(--portfolio-solid-text) !important;
  background: var(--portfolio-solid-bg);
  transform: translateY(-150%);
}

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

.article-return {
  display: flex;
  width: min(920px, calc(100vw - 40px));
  margin: 0 auto 72px;
  padding: 22px 0;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--portfolio-line);
  border-bottom: 1px solid var(--portfolio-line);
  color: var(--portfolio-muted);
  font-family: var(--portfolio-mono);
  font-size: 11px;
}

.article-return a {
  color: var(--portfolio-ink) !important;
  font-weight: 600;
  text-underline-offset: 4px;
}

.portfolio-theme-button {
  position: relative;
  display: grid;
  width: 32px;
  height: 32px;
  padding: 0;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--portfolio-line);
  border-radius: 50%;
  color: var(--portfolio-ink);
  background: var(--portfolio-surface);
  cursor: pointer;
}

.portfolio-theme-button:hover {
  border-color: var(--portfolio-ink);
}

.portfolio-theme-button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--portfolio-blue), transparent 52%);
  outline-offset: 3px;
}

.portfolio-theme-icon {
  position: absolute;
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
  transition: opacity 180ms ease, transform 220ms ease;
}

.portfolio-theme-icon--moon {
  fill: currentColor;
  stroke: none;
}

.portfolio-theme-icon--sun {
  opacity: 0;
  transform: rotate(-35deg) scale(0.55);
}

html[data-theme='dark'] .portfolio-theme-icon--moon {
  opacity: 0;
  transform: rotate(35deg) scale(0.55);
}

html[data-theme='dark'] .portfolio-theme-icon--sun {
  opacity: 1;
  transform: rotate(0) scale(1);
}

html[data-theme='dark'] body {
  color: var(--ink) !important;
}

html[data-theme='dark'][data-article='harness'] code {
  border-color: #38475a;
  color: #e7c979;
  background: #18212c;
}

html[data-theme='dark'][data-article='harness'] blockquote,
html[data-theme='dark'][data-article='harness'] tbody tr:hover {
  background: #151f2b;
}

html[data-theme='dark'][data-article='harness'] .t-hi {
  border-color: #32675c;
  color: #9de0cd;
  background: #15302d;
}

html[data-theme='dark'][data-article='harness'] .t-mid {
  border-color: #6e5628;
  color: #f0ca78;
  background: #332817;
}

html[data-theme='dark'][data-article='harness'] .t-lo {
  border-color: #6b3c3a;
  color: #f1a39c;
  background: #321d1d;
}

html[data-theme='dark'][data-article='harness'] .verdict code {
  border-color: rgba(255, 255, 255, 0.18);
  color: #f0e6c8;
  background: rgba(255, 255, 255, 0.08);
}

html[data-theme='dark'][data-article='strategy'] article {
  border-color: var(--line);
  background: rgba(18, 26, 37, 0.9);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

html[data-theme='dark'][data-article='strategy'] p,
html[data-theme='dark'][data-article='strategy'] li {
  color: var(--ink2);
}

html[data-theme='dark'][data-article='strategy'] code {
  border-color: #38475a;
  color: #e7c979;
  background: #18212c;
}

html[data-theme='dark'][data-article='strategy'] pre,
html[data-theme='dark'][data-article='strategy'] pre code {
  color: #f8f1df;
  background: #080c12;
}

html[data-theme='dark'][data-article='algorithm'] .hero,
html[data-theme='dark'][data-article='algorithm'] .legend-item,
html[data-theme='dark'][data-article='algorithm'] .board,
html[data-theme='dark'][data-article='algorithm'] .card,
html[data-theme='dark'][data-article='algorithm'] .table-wrap,
html[data-theme='dark'][data-article='algorithm'] .switch,
html[data-theme='dark'][data-article='algorithm'] .step,
html[data-theme='dark'][data-article='algorithm'] .timeline-item {
  border-color: var(--line);
  background: var(--panel);
}

html[data-theme='dark'][data-article='algorithm'] .node,
html[data-theme='dark'][data-article='algorithm'] .node.input,
html[data-theme='dark'][data-article='algorithm'] .node.policy,
html[data-theme='dark'][data-article='algorithm'] .node.end,
html[data-theme='dark'][data-article='algorithm'] .arrow,
html[data-theme='dark'][data-article='algorithm'] .note {
  border-color: var(--line);
  color: var(--ink2);
  background: var(--panel-2);
}

html[data-theme='dark'][data-article='algorithm'] .subtitle,
html[data-theme='dark'][data-article='algorithm'] .node p,
html[data-theme='dark'][data-article='algorithm'] .node li,
html[data-theme='dark'][data-article='algorithm'] .card p,
html[data-theme='dark'][data-article='algorithm'] .prompt-list li,
html[data-theme='dark'][data-article='algorithm'] .switch p,
html[data-theme='dark'][data-article='algorithm'] .step p,
html[data-theme='dark'][data-article='algorithm'] .timeline-item p {
  color: var(--ink2);
}

html[data-theme='dark'][data-article='algorithm'] .section-title .tag,
html[data-theme='dark'][data-article='algorithm'] .card .source,
html[data-theme='dark'][data-article='algorithm'] .prompt-list code,
html[data-theme='dark'][data-article='algorithm'] .hashes code {
  border-color: var(--line);
  color: var(--ink2);
  background: #18212c;
}

html[data-theme='dark'][data-article='algorithm'] .hero-button {
  border-color: var(--portfolio-solid-bg);
  color: var(--portfolio-solid-text);
  background: var(--portfolio-solid-bg);
  box-shadow: 4px 4px 0 #2b3746;
}

html[data-theme='dark'][data-article='algorithm'] .hero-button:hover,
html[data-theme='dark'][data-article='algorithm'] .hero-button:focus-visible {
  box-shadow: 6px 6px 0 #2b3746;
}

html[data-theme='dark'][data-article='algorithm'] .hero-button.secondary {
  border-color: var(--line);
  color: var(--ink);
  background: var(--panel);
}

html[data-theme='dark'][data-article='algorithm'] .commit,
html[data-theme='dark'][data-article='algorithm'] .ifelse,
html[data-theme='dark'][data-article='algorithm'] .chalkboard {
  border-color: var(--line);
  background: #080c12;
}

html[data-theme='dark'][data-article='algorithm'] td:first-child,
html[data-theme='dark'][data-article='algorithm'] .timeline-date {
  color: var(--ink);
}

html[data-theme='dark'][data-article='algorithm'] .pill {
  border-color: var(--line);
  color: var(--ink2);
  background: #18212c;
}

html[data-theme='dark'][data-article='algorithm'] .pill.hard {
  border-color: #6b3c3a;
  background: #321d1d;
}

html[data-theme='dark'][data-article='algorithm'] .pill.soft {
  border-color: #6e5628;
  background: #332817;
}

html[data-theme='dark'][data-article='algorithm'] .pill.clean {
  border-color: #32675c;
  background: #15302d;
}

html[data-theme='dark'][data-article='algorithm'] .pill.observe {
  border-color: #405883;
  background: #192744;
}

@media (max-width: 620px) {
  body {
    overflow-x: hidden;
  }

  main,
  article,
  section,
  li {
    min-width: 0;
    max-width: 100%;
  }

  :not(pre) > code {
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  pre {
    display: block;
    max-width: 100%;
    overflow-x: auto !important;
  }

  pre code {
    white-space: pre;
    overflow-wrap: normal;
    word-break: normal;
  }

  table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
  }

  .portfolio-brand {
    font-size: 0;
  }

  .portfolio-links {
    gap: 14px;
  }

  .portfolio-links a {
    font-size: 10px;
  }

  .portfolio-links a:first-child {
    display: none;
  }

  .article-return {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }
}

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