:root {
  --bg: #f3ede3;
  --bg-deep: #e8dcc8;
  --panel: rgba(255, 249, 241, 0.72);
  --panel-solid: #fbf6ee;
  --ink: #1b1612;
  --muted: #65594d;
  --accent: #b14f2e;
  --accent-strong: #8f3417;
  --accent-soft: rgba(177, 79, 46, 0.12);
  --teal: #1c6f68;
  --line: rgba(27, 22, 18, 0.12);
  --shadow: 0 30px 80px rgba(49, 31, 16, 0.16);
  --shadow-soft: 0 18px 45px rgba(49, 31, 16, 0.08);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1280px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(
      circle at top left,
      rgba(255, 255, 255, 0.8),
      transparent 34%
    ),
    radial-gradient(
      circle at 85% 15%,
      rgba(28, 111, 104, 0.12),
      transparent 20%
    ),
    radial-gradient(
      circle at 75% 80%,
      rgba(177, 79, 46, 0.16),
      transparent 24%
    ),
    linear-gradient(135deg, var(--bg) 0%, var(--bg-deep) 100%);
}

.page-aura,
.page-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

.page-aura {
  background:
    radial-gradient(
      circle at 20% 18%,
      rgba(255, 255, 255, 0.75),
      transparent 28%
    ),
    radial-gradient(
      circle at 80% 10%,
      rgba(28, 111, 104, 0.16),
      transparent 22%
    ),
    radial-gradient(circle at 85% 75%, rgba(177, 79, 46, 0.22), transparent 24%);
  filter: blur(14px);
}

.page-grain {
  z-index: -1;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.35)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

.topbar {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 1.25rem auto 0;
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  background: rgba(255, 251, 246, 0.58);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
}

.topbar-mark {
  font-family: "Instrument Serif", serif;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.topbar-meta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.layout {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 1.5rem;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.toc-panel,
.readme-card {
  border: 1px solid rgba(255, 255, 255, 0.62);
  background: var(--panel);
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-panel {
  border-radius: var(--radius-xl);
  padding: clamp(1.75rem, 4vw, 3rem);
}

.eyebrow,
.stat-label,
.toc-header p,
.readme-meta,
.render-status {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-copy h1 {
  margin: 0.75rem 0 1rem;
  max-width: 12ch;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
}

.hero-description {
  max-width: 42rem;
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.7;
  color: var(--muted);
}

.hero-actions {
  margin-top: 1.75rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #fffaf4;
  background: linear-gradient(
    135deg,
    var(--accent) 0%,
    var(--accent-strong) 100%
  );
  box-shadow: 0 18px 30px rgba(143, 52, 23, 0.24);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 22px 34px rgba(143, 52, 23, 0.28);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.45);
  box-shadow: inset 0 0 0 1px var(--line);
}

.hero-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-content: start;
}

.stat-card {
  margin: 0;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.46);
  box-shadow: inset 0 0 0 1px rgba(27, 22, 18, 0.06);
}

.stat-value {
  margin: 0.55rem 0 0;
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  line-height: 1.05;
}

.hero-note {
  margin: 0;
  padding: 1.1rem 1.2rem;
  grid-column: 1 / -1;
  border-left: 4px solid var(--teal);
  border-radius: 0 18px 18px 0;
  background: rgba(28, 111, 104, 0.08);
  color: var(--muted);
  line-height: 1.65;
}

.content-shell {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.toc-panel {
  position: sticky;
  top: 1.25rem;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 1rem;
  max-height: min(85vh, calc(100svh - 2.5rem));
  border-radius: 28px;
  padding: 1.35rem 1rem 1rem;
  overflow: hidden;
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0 0.2rem 0.95rem;
  border-bottom: 1px solid var(--line);
}

#toc-status {
  color: var(--teal);
  font-size: 0.8rem;
}

#toc {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-height: 0;
  padding-right: 0.3rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: rgba(177, 79, 46, 0.45) rgba(27, 22, 18, 0.06);
}

#toc::-webkit-scrollbar {
  width: 0.55rem;
}

#toc::-webkit-scrollbar-track {
  border-radius: 999px;
  background: rgba(27, 22, 18, 0.06);
}

#toc::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: linear-gradient(
    180deg,
    rgba(177, 79, 46, 0.65) 0%,
    rgba(143, 52, 23, 0.55) 100%
  );
}

#toc::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    180deg,
    rgba(177, 79, 46, 0.8) 0%,
    rgba(143, 52, 23, 0.7) 100%
  );
}

.toc-link {
  display: block;
  padding: 0.75rem 0.9rem;
  border-radius: 16px;
  text-decoration: none;
  color: var(--muted);
  line-height: 1.35;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.toc-link:hover,
.toc-link:focus-visible,
.toc-link.is-active {
  transform: translateX(4px);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.55);
}

.toc-link.level-3 {
  margin-left: 1rem;
  font-size: 0.95rem;
}

.readme-card {
  border-radius: 36px;
  overflow: hidden;
}

.readme-chrome {
  padding: 1rem 1.4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.readme-window-controls {
  display: flex;
  gap: 0.5rem;
}

.readme-window-controls span {
  display: block;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 999px;
  background: rgba(27, 22, 18, 0.16);
}

.readme-window-controls span:nth-child(1) {
  background: #e18059;
}

.readme-window-controls span:nth-child(2) {
  background: #edc760;
}

.readme-window-controls span:nth-child(3) {
  background: #71ab7f;
}

.readme-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.render-status {
  padding: 1.25rem 1.6rem 0;
}

.markdown-body {
  padding: 1.2rem clamp(1.35rem, 4vw, 3rem) clamp(2rem, 6vw, 3.25rem);
  font-size: 1.05rem;
  line-height: 1.9;
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body :where(h1, h2, h3, h4) {
  color: var(--ink);
  scroll-margin-top: 1.5rem;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.6rem;
  margin-bottom: 1rem;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.markdown-body h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

.markdown-body h2 {
  padding-top: 1.2rem;
  font-size: clamp(1.95rem, 4vw, 2.8rem);
  border-top: 1px solid var(--line);
}

.markdown-body h3 {
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body table,
.markdown-body pre,
.markdown-body hr {
  margin: 1.05rem 0 1.25rem;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.35rem;
}

.markdown-body li + li {
  margin-top: 0.45rem;
}

.markdown-body a {
  color: var(--accent-strong);
  text-decoration-color: rgba(143, 52, 23, 0.35);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.markdown-body a:hover,
.markdown-body a:focus-visible {
  text-decoration-color: currentColor;
}

.markdown-body strong {
  color: var(--ink);
}

.markdown-body code {
  padding: 0.22rem 0.45rem;
  border-radius: 0.55rem;
  background: rgba(177, 79, 46, 0.1);
  color: var(--accent-strong);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92em;
}

.markdown-body pre {
  position: relative;
  overflow: auto;
  padding: 1.2rem;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 30%), #171513;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.markdown-body pre::before {
  content: attr(data-language);
  position: absolute;
  top: 0.95rem;
  right: 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 250, 244, 0.55);
}

.markdown-body pre code {
  display: block;
  padding: 0;
  background: none;
  color: #f7eee2;
  font-size: 0.94rem;
  line-height: 1.7;
}

.markdown-body blockquote {
  padding: 1.15rem 1.35rem;
  border-left: 4px solid var(--accent);
  border-radius: 0 20px 20px 0;
  background: rgba(177, 79, 46, 0.08);
  color: var(--muted);
}

.markdown-body table {
  display: block;
  width: 100%;
  border-collapse: collapse;
  overflow-x: auto;
  overflow: hidden;
  border-radius: 18px;
  box-shadow: inset 0 0 0 1px var(--line);
  -webkit-overflow-scrolling: touch;
}

.markdown-body th,
.markdown-body td {
  min-width: 11rem;
  padding: 0.9rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  word-break: normal;
  overflow-wrap: normal;
}

.markdown-body th {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.52);
}

.markdown-body th code,
.markdown-body td code {
  white-space: nowrap;
}

.comparison-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.38rem 0.72rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.comparison-badge.is-strong {
  border-color: rgba(58, 122, 78, 0.24);
  background: rgba(94, 168, 114, 0.18);
  color: #245334;
}

.comparison-badge.is-indirect {
  border-color: rgba(184, 116, 34, 0.2);
  background: rgba(219, 167, 89, 0.18);
  color: #80520f;
}

.comparison-badge.is-limited,
.comparison-badge.is-neutral {
  border-color: rgba(168, 74, 58, 0.18);
  background: rgba(177, 79, 46, 0.12);
  color: #8b3417;
}

.markdown-body tr:last-child td {
  border-bottom: none;
}

.markdown-body hr {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.markdown-body img {
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
}

.markdown-body p[align="center"] {
  text-align: center;
  line-height: 1.08;
  margin: 0.2rem 0 0.7rem;
}

.markdown-body p[align="center"] img {
  display: inline-block;
  margin: 0 0.12rem 0.18rem;
  vertical-align: middle;
  border-radius: 999px;
  box-shadow: none;
}

.heading-anchor {
  opacity: 0;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 180ms ease;
}

.markdown-body :where(h1, h2, h3):hover .heading-anchor,
.markdown-body :where(h1, h2, h3):focus-within .heading-anchor {
  opacity: 1;
}

.render-status.is-error {
  color: var(--accent-strong);
}

.render-status.is-ready {
  color: var(--teal);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-copy,
.hero-panel,
.toc-panel,
.readme-card {
  animation: rise-in 700ms ease both;
}

.hero-panel {
  animation-delay: 80ms;
}

.toc-panel {
  animation-delay: 160ms;
}

.readme-card {
  animation-delay: 220ms;
}

@media (max-width: 1080px) {
  .hero,
  .content-shell {
    grid-template-columns: 1fr;
  }

  .toc-panel {
    position: static;
    max-height: min(32rem, 60vh);
  }
}

@media (max-width: 720px) {
  .topbar,
  .layout {
    width: min(calc(100% - 1rem), var(--max-width));
  }

  .topbar {
    border-radius: 28px;
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-meta {
    justify-content: flex-start;
  }

  .hero-copy,
  .hero-panel {
    padding: 1.35rem;
  }

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

  .button {
    width: 100%;
  }

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

  .readme-meta {
    justify-content: flex-start;
  }

  .markdown-body {
    font-size: 1rem;
  }
}