:root {
   /* Colour Palette: Forest Botanical & Technical Ground */
   --ground: #e4eae3;
   --surface: #dce3db;
   --surface-lift: #d3dcd2;
   --surface-inset: #ccd7cb;
   --surface-plate: #eaf0e9;
   --ink: #14221a;
   --ink-secondary: #2c3c32;
   --muted: #405347;
   --muted-light: #3d5044;
   --border: #b6c2b4;
   --border-strong: #8f9e8d;
   --border-subtle: #c8d4c6;
   --border-dark: #2c3c32;
  
   /* Confident Accent: Electrical Cured-Amber (adjusted for AA contrast >= 4.5:1 on light ground/surface) */
   --accent: #9a4e08;
   --accent-hover: #824005;
   --accent-active: #6b3402;
   --accent-contrast: #ffffff;
   --accent-subtle: #f1d9c5;
   --accent-tint: rgba(201, 110, 36, 0.08);

   /* Emergency / Breaker Signal */
   --signal: #b33927;
   --signal-bg: #f8dfdb;
   --signal-border: #e29b90;

   /* Grid & Generative Canvas */
   --canvas-grid: rgba(20, 34, 26, 0.06);
   --datum-line: rgba(20, 34, 26, 0.12);

   /* Type Families */
   --demo-6d4: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
   --demo-3fd: "Spectral", Georgia, serif;
   --demo-0d6: "JetBrains Mono", monospace;

   /* Fluid Type Scales (clamp min accommodates 320px screens cleanly) */
   --step--2: clamp(0.72rem, 0.7rem + 0.1vw, 0.78rem);
   --step--1: clamp(0.82rem, 0.78rem + 0.18vw, 0.92rem);
   --demo-d82: clamp(0.98rem, 0.94rem + 0.22vw, 1.125rem);
   --demo-1bc: clamp(1.15rem, 1.08rem + 0.35vw, 1.34rem);
   --demo-3ef: clamp(1.36rem, 1.25rem + 0.55vw, 1.68rem);
   --demo-d1c: clamp(1.62rem, 1.45rem + 0.85vw, 2.15rem);
   --demo-2e4: clamp(1.95rem, 1.7rem + 1.25vw, 2.85rem);
   --demo-2ee: clamp(2.35rem, 2rem + 1.75vw, 3.85rem);

   --space-3xs: 0.25rem;
   --space-2xs: 0.5rem;
   --space-xs: 0.75rem;
   --space-s: 1rem;
   --space-m: 1.5rem;
   --space-l: 2rem;
   --space-xl: 3rem;
   --space-2xl: 4.5rem;
   --space-3xl: 6.5rem;

   /* Layout Boundaries */
   --gutter: clamp(1.125rem, 3.5vw, 3.25rem);
   --max-width: 1420px;
   --rail-width: 320px;
   --measure-narrow: 38ch;
   --measure-prose: 65ch;
   --measure-wide: 78ch;

   --ease-standard: cubic-bezier(0.2, 0, 0, 1);
   --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
   --dur-fast: 140ms;
   --dur-normal: 220ms;
   --dur-slow: 380ms;
}


*, *::before, *::after {
   box-sizing: border-box;
   margin: 0;
   padding: 0;
}

html {
   background-color: var(--ground);
   color: var(--ink);
   font-family: var(--demo-3fd);
   font-size: 100%;
   line-height: 1.55;
   -webkit-text-size-adjust: 100%;
   text-rendering: optimizeLegibility;
   scroll-behavior: smooth;
}

body {
   background-color: var(--ground);
   color: var(--ink);
   font-family: var(--demo-3fd);
   min-height: 100vh;
   display: flex;
   flex-direction: column;
   position: relative;
   overflow-x: hidden;
}

img, picture, svg, video {
   display: block;
   max-width: 100%;
   height: auto;
}

button, input, select, textarea {
   font: inherit;
   color: inherit;
}


h1, h2, h3, h4, h5, h6 {
   font-family: var(--demo-6d4);
   font-weight: 700;
   line-height: 1.15;
   color: var(--ink);
   letter-spacing: -0.025em;
   text-wrap: balance;
   overflow-wrap: break-word;
}

h1 {
   font-size: var(--demo-2ee);
   font-weight: 700;
   letter-spacing: -0.035em;
   line-height: 1.05;
}

h2 {
   font-size: var(--demo-2e4);
   font-weight: 600;
   letter-spacing: -0.025em;
   line-height: 1.12;
}

h3 {
   font-size: var(--demo-d1c);
   font-weight: 600;
   letter-spacing: -0.02em;
   line-height: 1.2;
}

h4 {
   font-size: var(--demo-3ef);
   font-weight: 600;

   line-height: 1.25;
}

h5 {
   font-size: var(--demo-1bc);
   font-weight: 600;
   line-height: 1.3;
}

h6 {
   font-size: var(--demo-d82);
   font-weight: 600;
   line-height: 1.35;
}

p {
   font-size: var(--demo-d82);
   line-height: 1.62;
   margin-bottom: var(--space-s);
   max-width: var(--measure-prose);
}

p:last-child { margin-bottom: 0; }

a {
   color: inherit;
   text-decoration-thickness: 1px;
   text-underline-offset: 3px;
   transition: color var(--dur-fast) var(--ease-standard),
                     border-color var(--dur-fast) var(--ease-standard);
}

ul, ol {
   padding-left: 1.35em;
   margin-bottom: var(--space-s);
}

li {

   margin-bottom: 0.35em;
   line-height: 1.55;
}

code, kbd, samp, pre {
   font-family: var(--demo-0d6);
   font-size: var(--step--1);
}

table {
   border-collapse: collapse;
   width: 100%;
}

address { font-style: normal; }

hr {
   border: none;
   border-top: 1px solid var(--border);
   margin: var(--space-xl) 0;
}

blockquote {
   border-left: 3px solid var(--accent);
   padding-left: var(--space-m);
   margin: var(--space-m) 0;
   font-style: italic;
   color: var(--ink-secondary);
}

strong, b {
   font-weight: 600;
   color: var(--ink);
}

small { font-size: var(--step--1); }

/* Monospace & Tabular Technical Classes */
.mono {
   font-family: var(--demo-0d6);
   font-feature-settings: "tnum" 1, "zero" 1;
}

.tabular-nums { font-variant-numeric: tabular-nums; }

.label-mono {
   font-family: var(--demo-0d6);
   font-size: var(--step--2);
   letter-spacing: 0.08em;
   text-transform: uppercase;
   color: var(--muted);
   display: block;
   line-height: 1.3;
}

.value-mono {
   font-family: var(--demo-0d6);
   font-size: var(--demo-1bc);
   font-weight: 500;
   color: var(--ink);
}


.site-wrap {
   width: 100%;
   max-width: var(--max-width);
   margin-left: auto;
   margin-right: auto;
   padding-left: var(--gutter);
   padding-right: var(--gutter);
}

.site-main {
   flex: 1 0 auto;
   width: 100%;
   position: relative;
   z-index: 2;
}

.split-2-1 {
   display: grid;
   grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
   gap: var(--space-xl);
   align-items: start;
}

.split-1-2 {
   display: grid;
   grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
   gap: var(--space-xl);
   align-items: start;
}

@media (max-width: 900px) {
   .split-2-1,
   .split-1-2 {
      grid-template-columns: 1fr;
      gap: var(--space-l);
   }
}

.reading-system {
   display: grid;
   grid-template-columns: minmax(0, 68ch) minmax(220px, 1fr);
   gap: clamp(1.5rem, 4vw, 3.5rem);
   align-items: start;
}

.reading-system .main-col { min-width: 0; }

.reading-system .margin-col {
   min-width: 0;
   border-left: 1px solid var(--border);
   padding-left: var(--space-m);
}

@media (max-width: 860px) {
   .reading-system {
      grid-template-columns: 1fr;
      gap: var(--space-m);
   }
   .reading-system .margin-col {
      border-left: 2px solid var(--accent);
      padding-left: var(--space-s);
      margin-top: var(--space-s);
      margin-bottom: var(--space-m);
      background-color: var(--surface);
      padding: var(--space-s);
   }
}

.hairline-top { border-top: 1px solid var(--border); }

.hairline-bottom { border-bottom: 1px solid var(--border); }

.hairline-all { border: 1px solid var(--border); }

.screen-reader-only {
   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;
   top: var(--space-xs);
   left: var(--space-xs);
   z-index: 1000;
   background-color: var(--ink);
   color: var(--ground);
   padding: var(--space-xs) var(--space-s);

   font-family: var(--demo-0d6);
   font-size: var(--step--1);
   text-decoration: none;
   transform: translateY(-200%);
   transition: transform var(--dur-fast) var(--ease-standard);
   border: 2px solid var(--accent);
}

.skip-link:focus {
   transform: translateY(0);
   outline: 2px solid var(--accent);
   outline-offset: 2px;
}

/* Background Generative Canvas */
.bg-canvas-container {
   position: fixed;
   inset: 0;
   width: 100vw;
   height: 100vh;
   pointer-events: none;
   z-index: 1;
   opacity: 0.38;
}

.bg-canvas {
   width: 100%;
   height: 100%;
   display: block;
}

/* Icon Sprites */
.icon {
   width: 1.15em;
   height: 1.15em;
   fill: currentColor;
   vertical-align: -0.18em;
   display: inline-block;
   flex-shrink: 0;
}

.icon-s {
   width: 0.9em;
   height: 0.9em;
   vertical-align: -0.1em;
}

.icon-m {
   width: 1.25em;
   height: 1.25em;
   vertical-align: -0.2em;
}

.icon-l {
   width: 1.6em;
   height: 1.6em;
   vertical-align: -0.24em;
}


@media (prefers-reduced-motion: reduce) {
   *, *::before, *::after {
      animation-duration: 0.001ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.001ms !important;
      scroll-behavior: auto !important;
   }
   .bg-canvas-container { display: none !important; }
   .self-draw-path { stroke-dashoffset: 0 !important; }
}