:root {
  --framework-bg: #05070c;
  --framework-bg-gradient-1: radial-gradient(circle at 20% 20%, rgba(84, 240, 255, 0.12), transparent 55%);
  --framework-bg-gradient-2: radial-gradient(circle at 80% 10%, rgba(95, 140, 255, 0.1), transparent 60%);
  --framework-surface: rgba(10, 15, 25, 0.82);
  --framework-surface-strong: rgba(13, 20, 35, 0.92);
  --framework-border: rgba(120, 165, 210, 0.22);
  --framework-border-strong: rgba(84, 240, 255, 0.45);
  --framework-shadow: 0 40px 90px rgba(3, 10, 24, 0.55);
  --framework-shadow-hover: 0 45px 120px rgba(4, 14, 32, 0.65);
  --framework-radius: 28px;
  --framework-text: #e5edf7;
  --framework-heading: #f6f9ff;
  --framework-muted: #9aacbf;
  --framework-accent: #58e0ff;
  --framework-accent-soft: rgba(88, 224, 255, 0.16);
  --framework-code-bg: rgba(4, 12, 24, 0.85);
  --framework-line-height: 1.75;
  --framework-font-serif: "Iowan Old Style", "Georgia", "Times New Roman", serif;
  --framework-font-sans: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --framework-font-mono: "IBM Plex Mono", "SFMono-Regular", "Menlo", monospace;
}

body.framework-theme {
  margin: 0;
  min-height: 100vh;
  background: var(--framework-bg);
  background-image: var(--framework-bg-gradient-1), var(--framework-bg-gradient-2);
  color: var(--framework-text);
  font-family: var(--framework-font-serif);
  line-height: var(--framework-line-height);
  letter-spacing: 0.01em;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

body.framework-theme::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, rgba(84, 240, 255, 0.08), transparent 45%),
    linear-gradient(220deg, rgba(45, 88, 200, 0.08), transparent 55%);
  pointer-events: none;
  z-index: 0;
}

body.framework-theme #cortex {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
}

.framework-shell {
  position: relative;
  z-index: 2;
  max-width: min(100%, 1020px);
  margin: clamp(1.5rem, 4vw, 4rem) auto clamp(2.5rem, 6vw, 5rem);
  padding: clamp(1.75rem, 3vw + 1rem, 3.5rem);
  background: linear-gradient(145deg, var(--framework-surface), var(--framework-surface-strong));
  border: 1px solid var(--framework-border);
  border-radius: var(--framework-radius);
  box-shadow: var(--framework-shadow);
  backdrop-filter: blur(18px);
}

.framework-shell:hover,
.framework-shell:focus-within {
  border-color: var(--framework-border-strong);
  box-shadow: var(--framework-shadow-hover);
}

.framework-shell > *:first-child {
  margin-top: 0;
}

.framework-shell > *:last-child {
  margin-bottom: 0;
}

.framework-shell .back-link {
  font-family: var(--framework-font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--framework-accent);
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
  text-decoration: none;
  opacity: 0.85;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.framework-shell .back-link::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--framework-accent);
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.framework-shell .back-link:hover,
.framework-shell .back-link:focus-visible {
  opacity: 1;
  transform: translateX(-2px);
  outline: none;
}

.framework-shell .back-link:hover::before,
.framework-shell .back-link:focus-visible::before {
  opacity: 0.9;
}

.framework-breadcrumb {
  font-family: var(--framework-font-sans);
  font-size: 0.9rem;
  color: var(--framework-muted);
  margin-bottom: clamp(1.25rem, 3vw, 1.9rem);
}

.framework-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.framework-breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.framework-breadcrumb li + li::before {
  content: "›";
  color: var(--framework-accent);
  font-size: 0.85em;
}

.framework-breadcrumb a {
  color: var(--framework-accent);
  text-decoration: none;
}

.framework-breadcrumb a:hover,
.framework-breadcrumb a:focus-visible {
  text-decoration: underline;
  outline: none;
}

body.framework-theme h1,
body.framework-theme h2,
body.framework-theme h3,
body.framework-theme h4,
body.framework-theme h5,
body.framework-theme h6 {
  font-family: var(--framework-font-sans);
  color: var(--framework-heading);
  line-height: 1.3;
}

body.framework-theme h1 {
  font-size: clamp(2rem, 3vw + 1.4rem, 2.9rem);
  margin-bottom: clamp(1.2rem, 3vw, 1.8rem);
  text-shadow: 0 0 24px rgba(84, 240, 255, 0.25);
}

body.framework-theme h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  margin-top: clamp(2.2rem, 4vw, 3rem);
  margin-bottom: clamp(0.85rem, 2vw, 1.2rem);
  border-bottom: 1px solid rgba(84, 240, 255, 0.12);
  padding-bottom: 0.75rem;
}

body.framework-theme h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  margin-top: clamp(1.8rem, 3.6vw, 2.5rem);
  margin-bottom: 0.75rem;
}

body.framework-theme h4,
body.framework-theme h5,
body.framework-theme h6 {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  margin-top: clamp(1.2rem, 2.4vw, 1.8rem);
  margin-bottom: 0.6rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--framework-muted);
}

body.framework-theme p,
body.framework-theme ul,
body.framework-theme ol,
body.framework-theme blockquote,
body.framework-theme pre,
body.framework-theme table {
  margin-top: 0.75rem;
  margin-bottom: 1.25rem;
}

body.framework-theme p {
  font-size: clamp(1rem, 1.2vw + 0.9rem, 1.1rem);
}

body.framework-theme strong {
  color: var(--framework-heading);
}

body.framework-theme ul,
body.framework-theme ol {
  padding-left: clamp(1.2rem, 3vw, 1.8rem);
}

body.framework-theme li {
  margin: 0.35rem 0;
  padding-left: 0.2rem;
}

body.framework-theme li::marker {
  color: var(--framework-accent);
}

body.framework-theme blockquote {
  position: relative;
  padding: 1.2rem 1.5rem;
  border-left: 3px solid var(--framework-accent);
  background: rgba(84, 240, 255, 0.08);
  border-radius: 0 18px 18px 0;
  color: var(--framework-heading);
  font-style: italic;
}

body.framework-theme blockquote::before {
  content: "\201C";
  position: absolute;
  top: -10px;
  left: 12px;
  font-size: 3rem;
  color: rgba(84, 240, 255, 0.25);
}

body.framework-theme hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(84, 240, 255, 0.5), transparent);
  margin: clamp(2rem, 4vw, 3rem) 0;
}

body.framework-theme a {
  color: var(--framework-accent);
  text-decoration: none;
  transition: color 0.3s ease;
}

body.framework-theme a:hover,
body.framework-theme a:focus-visible {
  color: var(--framework-heading);
  outline: none;
}

body.framework-theme code,
body.framework-theme pre {
  font-family: var(--framework-font-mono);
  background: var(--framework-code-bg);
  border: 1px solid rgba(84, 240, 255, 0.25);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  color: var(--framework-accent);
  overflow-x: auto;
  box-shadow: inset 0 0 0 1px rgba(84, 240, 255, 0.08);
}

body.framework-theme pre {
  white-space: pre-wrap;
  font-size: 0.95rem;
  line-height: 1.65;
}

body.framework-theme table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--framework-border);
  border-radius: 18px;
  overflow: hidden;
}

body.framework-theme th,
body.framework-theme td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(84, 240, 255, 0.1);
  text-align: left;
}

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

body.framework-theme th {
  background: rgba(84, 240, 255, 0.12);
  font-family: var(--framework-font-sans);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.framework-theme footer {
  position: relative;
  z-index: 2;
  max-width: min(100%, 1020px);
  margin: clamp(2rem, 5vw, 4rem) auto clamp(2rem, 5vw, 4rem);
  padding: clamp(1.25rem, 3vw, 2rem) clamp(1.2rem, 4vw, 1.8rem) clamp(1.5rem, 4vw, 2.4rem);
  color: var(--framework-muted);
  font-family: var(--framework-font-sans);
  font-size: 0.9rem;
  text-align: center;
}

body.framework-theme footer a {
  color: var(--framework-accent);
}

body.framework-theme footer a:hover,
body.framework-theme footer a:focus-visible {
  color: var(--framework-heading);
}

.framework-section-intro {
  font-family: var(--framework-font-sans);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--framework-muted);
  margin-bottom: 1.25rem;
}

.framework-callout {
  border-radius: 18px;
  border: 1px solid rgba(84, 240, 255, 0.18);
  background: rgba(84, 240, 255, 0.08);
  padding: 1.4rem 1.6rem;
  margin: clamp(1.5rem, 3vw, 2.5rem) 0;
  font-family: var(--framework-font-sans);
  color: var(--framework-heading);
}

.framework-callout strong {
  display: block;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.65rem;
  color: var(--framework-accent);
}

.framework-grid {
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 900px) {
  .framework-grid--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.framework-grid-item {
  padding: 1.4rem 1.6rem;
  border-radius: 18px;
  border: 1px solid rgba(84, 240, 255, 0.14);
  background: rgba(9, 16, 28, 0.75);
  box-shadow: inset 0 0 0 1px rgba(84, 240, 255, 0.06);
}

.framework-grid-item h3,
.framework-grid-item h4 {
  margin-top: 0;
}

.framework-figure {
  margin: clamp(1.5rem, 3vw, 2.5rem) 0;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(84, 240, 255, 0.16);
  background: rgba(9, 16, 28, 0.78);
}

.framework-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.framework-figure figcaption {
  padding: 0.85rem 1.2rem;
  font-size: 0.9rem;
  color: var(--framework-muted);
  font-family: var(--framework-font-sans);
}

.framework-terminal {
  background: rgba(5, 12, 24, 0.92);
  border-radius: 18px;
  border: 1px solid rgba(84, 240, 255, 0.35);
  box-shadow: inset 0 0 0 1px rgba(84, 240, 255, 0.12);
  padding: 1.4rem 1.6rem;
  color: #9efaff;
  font-size: 0.95rem;
}

.framework-terminal::before {
  content: "◦ Recursive Log";
  display: block;
  font-family: var(--framework-font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(158, 250, 255, 0.6);
  margin-bottom: 0.9rem;
}

.framework-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-bottom: clamp(1.8rem, 3vw, 2.5rem);
  font-family: var(--framework-font-sans);
  font-size: 0.95rem;
  color: var(--framework-muted);
}

.framework-metadata span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(84, 240, 255, 0.18);
  background: rgba(84, 240, 255, 0.05);
}

@media (max-width: 720px) {
  .framework-shell {
    margin: clamp(1.25rem, 4vw, 2.5rem) auto clamp(2rem, 5vw, 3rem);
    padding: clamp(1.4rem, 4vw, 2.2rem);
  }

  body.framework-theme {
    line-height: 1.65;
  }

  body.framework-theme h1 {
    font-size: clamp(1.85rem, 6vw, 2.4rem);
  }

  body.framework-theme h2 {
    font-size: clamp(1.35rem, 5vw, 1.8rem);
  }

  body.framework-theme h3 {
    font-size: clamp(1.18rem, 4.8vw, 1.45rem);
  }

  body.framework-theme h4,
  body.framework-theme h5,
  body.framework-theme h6 {
    font-size: clamp(0.95rem, 4vw, 1.1rem);
    letter-spacing: 0.08em;
  }

  body.framework-theme ul,
  body.framework-theme ol {
    padding-left: 1.1rem;
  }

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

@media (max-width: 480px) {
  .framework-shell .back-link {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
  }

  body.framework-theme p {
    font-size: 1rem;
  }
}