/* ==========================================================================
   ncbd.dev -- Not Centralized, But Distributed
   Scandinavian editorial -- neon-electric -- magazine-spread
   Fonts: Playfair Display (Google Fonts), Inter (Google Fonts), Fira Code (Google Fonts)
   ========================================================================== */

:root {
    --c-paper:        #FAFAFA;
    --c-ink:          #1A1A20;
    --c-neon:         #00B8FF;
    --c-neon-green:   #00E870;
    --c-sage:         #5A8A60;
    --c-code-bg:      #F0F0F4;
    --c-border:       #E0E0E8;

    --c-ink-soft:     rgba(26, 26, 32, 0.72);
    --c-ink-faint:    rgba(26, 26, 32, 0.42);

    --f-serif:  "Playfair Display", Georgia, serif;
    --f-sans:   "Inter", "Helvetica Neue", Arial, sans-serif;
    --f-mono:   "Fira Code", ui-monospace, "SFMono-Regular", monospace;

    --gutter: 32px;
    --rail-w: 168px;
    --content-w: min(85vw, 1240px);
    --spread-gap: 80px;
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--c-paper);
    color: var(--c-ink);
    font-family: var(--f-sans);
    font-size: clamp(15px, 1vw, 16px);
    line-height: 1.8;
    font-weight: 400;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--c-neon);
    color: var(--c-paper);
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ==========================================================================
   Manifesto header
   ========================================================================== */

.manifesto {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 120px 7.5vw 96px;
    background: var(--c-paper);
    overflow: hidden;
}

.manifesto-frame { position: absolute; inset: 32px; pointer-events: none; }

.frame-line {
    position: absolute;
    background: var(--c-neon);
    transform-origin: 0 0;
    transform: scaleX(0);
    opacity: 0;
    transition: transform 900ms cubic-bezier(.7,0,.2,1) 1100ms,
                opacity 600ms ease 1100ms;
}
.frame-line-top    { top: 0;    left: 0;  height: 2px; width: 38%; }
.frame-line-bottom { bottom: 0; right: 0; height: 2px; width: 38%; transform-origin: 100% 0; }
.frame-line-left   { top: 0;    left: 0;  width: 2px;  height: 28%; transform: scaleY(0); transform-origin: 0 0; }
.frame-line-right  { bottom: 0; right: 0; width: 2px;  height: 28%; transform: scaleY(0); transform-origin: 0 100%; }

.manifesto.is-loaded .frame-line {
    transform: scaleX(1);
    opacity: 1;
}
.manifesto.is-loaded .frame-line-left,
.manifesto.is-loaded .frame-line-right {
    transform: scaleY(1);
}

.manifesto-inner {
    position: relative;
    max-width: var(--content-w);
    width: 100%;
    margin: 0 auto;
    z-index: 2;
}

.masthead {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    padding: 12px 0;
    margin-bottom: 56px;
    font-family: var(--f-sans);
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-ink-soft);
    flex-wrap: wrap;
    gap: 12px;
}

.domain {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: clamp(56px, 9vw, 148px);
    line-height: 0.92;
    letter-spacing: -0.02em;
    margin: 0 0 28px;
    color: var(--c-ink);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 600ms ease, transform 800ms cubic-bezier(.2,.7,.2,1);
}
.manifesto.is-loaded .domain {
    opacity: 1;
    transform: translateY(0);
}

.manifesto-line {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(22px, 2.6vw, 36px);
    color: var(--c-ink);
    margin: 0 0 28px;
    min-height: 1.4em;
    border-left: 2px solid var(--c-neon);
    padding-left: 18px;
}
.manifesto-line::after {
    content: "";
    display: inline-block;
    width: 0.6em;
    height: 1em;
    background: var(--c-neon);
    margin-left: 4px;
    vertical-align: -0.12em;
    animation: cursor-blink 950ms steps(1, end) infinite;
}
.manifesto-line.is-typed::after { animation: none; opacity: 0; }

@keyframes cursor-blink {
    0%, 49%   { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.manifesto-sub {
    max-width: 56ch;
    font-size: clamp(15px, 1.05vw, 17px);
    line-height: 1.75;
    color: var(--c-ink-soft);
    margin: 0 0 56px;
}

.hero-diagram {
    width: 100%;
    max-width: 720px;
    margin: 8px 0 48px;
}
.hero-diagram svg { width: 100%; height: auto; }

.net-edges line {
    stroke: var(--c-neon);
    stroke-width: 1;
    stroke-linecap: round;
    fill: none;
    stroke-dasharray: var(--len, 200);
    stroke-dashoffset: var(--len, 200);
    transition: stroke-dashoffset 700ms ease;
    opacity: 0.85;
}
.manifesto.is-drawn .net-edges line {
    stroke-dashoffset: 0;
}

.net-nodes circle {
    fill: var(--c-paper);
    stroke: var(--c-ink);
    stroke-width: 1.5;
    transform-origin: center;
    transform: scale(0);
    transition: transform 380ms cubic-bezier(.2,.8,.2,1);
}
.manifesto.is-drawn .net-nodes circle { transform: scale(1); }
.net-nodes circle:hover {
    fill: var(--c-neon-green);
    stroke: var(--c-neon-green);
    transform: scale(1.35);
    transition: transform 220ms ease, fill 220ms ease, stroke 220ms ease;
}
.net-nodes circle.is-pulse {
    fill: var(--c-neon);
    stroke: var(--c-neon);
}

.net-packets circle {
    fill: var(--c-neon-green);
    filter: drop-shadow(0 0 4px rgba(0, 232, 112, 0.5));
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--c-ink-soft);
}
.meta-tag { padding: 4px 0; }
.meta-tag.accent-green { color: var(--c-sage); }

.scroll-cue {
    position: absolute;
    left: 7.5vw;
    bottom: 56px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--f-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-ink-faint);
}
.cue-line {
    width: 64px;
    height: 1px;
    background: var(--c-ink-faint);
    position: relative;
    overflow: hidden;
}
.cue-line::after {
    content: "";
    position: absolute;
    inset: 0 auto 0 -100%;
    background: var(--c-neon);
    width: 60%;
    animation: cue-slide 2400ms ease-in-out infinite;
}
@keyframes cue-slide {
    0%   { left: -60%; }
    55%  { left: 100%; }
    100% { left: 100%; }
}

/* ==========================================================================
   Documentation spreads
   ========================================================================== */

.documentation {
    padding: 96px 7.5vw 120px;
}

.spread {
    max-width: var(--content-w);
    margin: 0 auto var(--spread-gap);
    padding: 56px 0;
    border-top: 1px solid var(--c-border);
    position: relative;
    transition: filter 420ms ease, opacity 420ms ease;
    filter: blur(1.5px);
    opacity: 0.55;
}
.spread:last-of-type { margin-bottom: 0; }
.spread.is-active {
    filter: blur(0);
    opacity: 1;
}

.spread-meta {
    display: flex;
    align-items: baseline;
    gap: 28px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}
.folio {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 400;
    font-size: 18px;
    color: var(--c-neon);
}
.spread-label {
    font-family: var(--f-sans);
    font-weight: 500;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-ink-soft);
}
.spread-keyword {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 700;
    font-size: 22px;
    color: var(--c-ink);
    margin-left: auto;
}

.spread-grid {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: var(--gutter);
    align-items: start;
    transition: filter 320ms ease;
}
.spread-reverse .spread-grid {
    grid-template-columns: 45% 55%;
}

.column { min-width: 0; }
.column.is-hover-blur { filter: blur(0.5px); }

.spread-title {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: clamp(28px, 3.5vw, 52px);
    line-height: 1.08;
    letter-spacing: -0.012em;
    margin: 0 0 28px;
    color: var(--c-ink);
}

.lede {
    font-family: var(--f-serif);
    font-style: italic;
    font-size: clamp(17px, 1.4vw, 22px);
    line-height: 1.55;
    color: var(--c-ink-soft);
    margin: 0 0 28px;
    border-left: 2px solid var(--c-neon-green);
    padding-left: 18px;
}

.column-text p {
    margin: 0 0 22px;
    max-width: 60ch;
}

.column-text em {
    font-family: var(--f-serif);
    font-style: italic;
    color: var(--c-ink);
}

.pull-quote {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 700;
    font-size: clamp(22px, 1.8vw, 28px);
    line-height: 1.35;
    color: var(--c-ink);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    padding: 24px 0;
    margin-top: 32px;
}

.column-text code {
    font-family: var(--f-mono);
    font-size: 0.9em;
    background: var(--c-code-bg);
    padding: 2px 6px;
    border-radius: 2px;
    color: var(--c-ink);
}

.micro-note {
    font-family: var(--f-mono);
    font-size: 12px;
    line-height: 1.7;
    color: var(--c-ink-soft);
    background: var(--c-code-bg);
    border-left: 2px solid var(--c-neon);
    padding: 14px 18px;
    margin: 24px 0;
    letter-spacing: 0.01em;
}
.micro-tag {
    display: block;
    color: var(--c-sage);
    margin-bottom: 6px;
    letter-spacing: 0.06em;
}

/* Topology grid */
.topology-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin: 0;
    padding: 0;
}
.topo-cell {
    background: var(--c-paper);
    border: 1px solid var(--c-border);
    padding: 18px 18px 14px;
    transition: border-color 240ms ease, transform 240ms ease;
}
.topo-cell:hover {
    border-color: var(--c-neon);
    transform: translateY(-2px);
}
.topo-svg { width: 100%; height: auto; aspect-ratio: 1 / 1; }
.topo-edges line {
    stroke: var(--c-border);
    stroke-width: 1;
    transition: stroke 240ms ease;
}
.topo-cell:hover .topo-edges line { stroke: var(--c-neon); }
.topo-nodes circle {
    fill: var(--c-paper);
    stroke: var(--c-ink);
    stroke-width: 1.4;
    transition: fill 240ms ease, stroke 240ms ease;
}
.topo-cell:hover .topo-nodes circle { fill: var(--c-neon-green); stroke: var(--c-neon-green); }
.topo-nodes circle.hub {
    fill: var(--c-ink);
}
.topo-cell figcaption {
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-ink-soft);
    margin-top: 12px;
    line-height: 1.45;
}

/* Code figure */
.code-figure {
    background: var(--c-code-bg);
    border-left: 2px solid var(--c-border);
    margin: 0 0 28px;
    transition: border-color 280ms ease, border-left-width 280ms ease;
}
.code-figure.is-active,
.code-figure:hover {
    border-left-color: var(--c-neon);
    border-left-width: 4px;
}
.code-cap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 18px;
    border-bottom: 1px solid var(--c-border);
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-ink-soft);
    letter-spacing: 0.06em;
    flex-wrap: wrap;
    gap: 8px;
}
.code-file { color: var(--c-ink); }
.code-tag { color: var(--c-sage); font-weight: 500; }

.code-block {
    margin: 0;
    padding: 18px 18px 20px 18px;
    overflow-x: auto;
    font-family: var(--f-mono);
    font-size: 13px;
    line-height: 1.7;
    color: var(--c-ink);
    background: transparent;
}
.code-block code { font-family: inherit; white-space: pre; }
.code-block .ln {
    display: inline-block;
    width: 26px;
    color: var(--c-ink-faint);
    user-select: none;
    margin-right: 12px;
}
.code-block .kw { color: var(--c-neon); font-weight: 500; }
.code-block .ty { color: var(--c-sage); }
.code-block .fn { color: var(--c-ink); font-weight: 500; }
.code-block .vl { color: var(--c-sage); }
.code-block .id { color: var(--c-ink); }
.code-block .st { color: var(--c-neon-green); }

/* Callout */
.callout {
    margin: 0;
    padding: 20px 22px;
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    display: flex;
    gap: 18px;
    align-items: flex-start;
}
.callout-mark {
    font-family: var(--f-serif);
    font-style: italic;
    font-size: 32px;
    color: var(--c-neon);
    line-height: 1;
}
.callout p {
    margin: 0;
    font-family: var(--f-serif);
    font-style: italic;
    font-size: 16px;
    line-height: 1.55;
    color: var(--c-ink-soft);
}

/* Ledger list (chapter 2) */
.ledger {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    border-top: 1px solid var(--c-border);
}
.ledger li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 12px 0;
    border-bottom: 1px solid var(--c-border);
    font-family: var(--f-mono);
    font-size: 13px;
    gap: 16px;
}
.ledger-key {
    color: var(--c-ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
}
.ledger-val { color: var(--c-ink); }

/* Replication figure */
.replication-figure {
    margin: 0;
    padding: 24px;
    border: 1px solid var(--c-border);
    background: var(--c-paper);
}
#replication-svg { width: 100%; height: auto; }

.rep-edges line {
    stroke: var(--c-border);
    stroke-width: 1.5;
    transition: stroke 260ms ease, stroke-width 260ms ease;
}
.replication-figure.is-active .rep-edges line {
    stroke: var(--c-neon);
}
.rep-nodes circle {
    transition: transform 260ms ease, filter 260ms ease;
    transform-origin: center;
}
.rep-nodes circle.primary {
    fill: var(--c-neon);
    stroke: var(--c-ink);
    stroke-width: 1.5;
}
.rep-nodes circle.coordinator {
    fill: var(--c-ink);
    stroke: var(--c-neon);
    stroke-width: 1.5;
}
.rep-nodes circle.replica {
    fill: var(--c-paper);
    stroke: var(--c-ink);
    stroke-width: 1.5;
}
.rep-nodes circle:hover {
    filter: drop-shadow(0 0 6px rgba(0, 184, 255, 0.55));
}
.rep-nodes circle.is-ack {
    fill: var(--c-neon-green);
    stroke: var(--c-neon-green);
}
.rep-packets circle {
    fill: var(--c-neon);
    filter: drop-shadow(0 0 4px rgba(0, 184, 255, 0.6));
}

.legend {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-ink-soft);
}
.legend li { display: flex; align-items: center; gap: 8px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-blue  { background: var(--c-neon); }
.dot-green { background: var(--c-neon-green); }
.dot-sage  { background: var(--c-sage); }

/* Failure grid (chapter 4) */
.failure-figure { margin: 0; }
.failure-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.failure-card {
    border: 1px solid var(--c-border);
    padding: 22px 20px 20px;
    background: var(--c-paper);
    position: relative;
    transition: border-color 260ms ease, transform 260ms ease;
}
.failure-card:hover {
    border-color: var(--c-neon);
    transform: translateY(-2px);
}
.fc-num {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 700;
    font-size: 22px;
    color: var(--c-neon);
}
.failure-card h4 {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 20px;
    margin: 6px 0 10px;
    color: var(--c-ink);
}
.failure-card p {
    margin: 0 0 16px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--c-ink-soft);
}
.fc-tag {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-sage);
    border: 1px solid var(--c-border);
    padding: 3px 8px;
    letter-spacing: 0.06em;
}

/* ==========================================================================
   Botanical interlude (full bleed)
   ========================================================================== */

.botanical {
    background: linear-gradient(180deg, var(--c-paper) 0%, var(--c-code-bg) 100%);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    padding: 120px 7.5vw;
    margin: 40px 0 var(--spread-gap);
    position: relative;
}
.botanical::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    width: 1px;
    height: 56px;
    background: var(--c-sage);
    transform: translate(-50%, -50%);
}

.botanical-inner {
    max-width: var(--content-w);
    margin: 0 auto;
}

.botanical-header {
    text-align: center;
    margin-bottom: 72px;
}
.botanical-eyebrow {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.3em;
    color: var(--c-sage);
    text-transform: uppercase;
}
.botanical-title {
    font-family: var(--f-serif);
    font-weight: 700;
    font-style: italic;
    font-size: clamp(28px, 3.5vw, 48px);
    line-height: 1.18;
    color: var(--c-ink);
    margin: 16px auto 18px;
    max-width: 22ch;
}
.botanical-sub {
    font-size: 16px;
    color: var(--c-ink-soft);
    max-width: 56ch;
    margin: 0 auto;
    line-height: 1.7;
}

.botanical-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.botanical-card {
    margin: 0;
    background: var(--c-paper);
    border: 1px solid var(--c-border);
    padding: 32px 28px 28px;
    transition: border-color 320ms ease, transform 320ms ease;
}
.botanical-card:hover {
    border-color: var(--c-sage);
    transform: translateY(-3px);
}
.botanical-card:hover .botanical-svg svg {
    filter: drop-shadow(0 0 10px rgba(90, 138, 96, 0.55));
}

.botanical-svg {
    margin: 0 auto 18px;
    width: 100%;
    max-width: 220px;
    aspect-ratio: 6 / 5;
    transition: filter 320ms ease;
}
.botanical-svg svg {
    width: 100%;
    height: 100%;
    transition: filter 320ms ease;
}

.bot-line {
    fill: none;
    stroke: var(--c-sage);
    stroke-width: 1.2;
    stroke-linecap: round;
    stroke-dasharray: 220;
    stroke-dashoffset: 220;
    transition: stroke-dashoffset 1100ms ease;
}
.botanical-card.is-drawn .bot-line {
    stroke-dashoffset: 0;
}

.bot-leaves circle {
    fill: var(--c-paper);
    stroke: var(--c-sage);
    stroke-width: 1.4;
    opacity: 0;
    transform-origin: center;
    transform: scale(0.4);
    transition: opacity 380ms ease 600ms, transform 480ms cubic-bezier(.2,.8,.2,1) 700ms;
}
.botanical-card.is-drawn .bot-leaves circle {
    opacity: 1;
    transform: scale(1);
}

.botanical-card figcaption h3 {
    font-family: var(--f-serif);
    font-weight: 700;
    font-style: italic;
    font-size: 24px;
    margin: 0 0 8px;
    color: var(--c-ink);
}
.botanical-card figcaption p {
    margin: 0 0 14px;
    font-size: 14px;
    line-height: 1.65;
    color: var(--c-ink-soft);
}
.bot-label {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--c-sage);
    letter-spacing: 0.04em;
}

/* ==========================================================================
   Colophon
   ========================================================================== */

.colophon {
    max-width: var(--content-w);
    margin: 0 auto;
    padding: 80px 0 0;
    border-top: 1px solid var(--c-border);
}
.colophon-inner {
    text-align: center;
    padding-bottom: 40px;
}
.colophon-logo {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 36px;
    color: var(--c-ink);
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}
.cl-dot { color: var(--c-neon); margin: 0 6px; }
.cl-tld { font-style: italic; color: var(--c-ink-soft); font-weight: 400; }

.colophon-line {
    max-width: 56ch;
    margin: 0 auto 36px;
    font-family: var(--f-serif);
    font-style: italic;
    font-size: 17px;
    line-height: 1.6;
    color: var(--c-ink-soft);
}

.colophon-grid {
    list-style: none;
    margin: 0 auto 32px;
    padding: 24px 0;
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 720px;
}
.colophon-grid li {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: var(--f-mono);
    font-size: 12px;
}
.ck { color: var(--c-ink-faint); letter-spacing: 0.18em; text-transform: uppercase; }
.cv { color: var(--c-ink); font-weight: 500; }
.cv.accent-green { color: var(--c-sage); }

.colophon-foot {
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-ink-faint);
    letter-spacing: 0.04em;
    margin: 0;
}

/* ==========================================================================
   Reading rail (right-side chapter index)
   ========================================================================== */

.reading-rail {
    position: fixed;
    top: 50%;
    right: 32px;
    transform: translateY(-50%);
    z-index: 50;
    display: flex;
    align-items: flex-start;
    gap: 18px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 480ms ease;
}
.reading-rail.is-visible {
    opacity: 1;
    pointer-events: auto;
}
.rail-line {
    width: 1px;
    height: 180px;
    background: var(--c-border);
    margin-top: 14px;
    position: relative;
}
.rail-line::after {
    content: "";
    position: absolute;
    left: -1px;
    width: 3px;
    background: var(--c-neon);
    top: 0;
    height: 25%;
    transition: top 320ms ease, height 320ms ease;
}
.reading-rail[data-active="0"] .rail-line::after { top: 0;   height: 25%; }
.reading-rail[data-active="1"] .rail-line::after { top: 25%; height: 25%; }
.reading-rail[data-active="2"] .rail-line::after { top: 50%; height: 25%; }
.reading-rail[data-active="3"] .rail-line::after { top: 75%; height: 25%; }

.rail-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--c-ink-faint);
    cursor: pointer;
}
.rail-list li {
    display: flex;
    align-items: baseline;
    gap: 10px;
    transition: color 240ms ease;
}
.rail-list li:hover { color: var(--c-ink); }
.rail-list li.is-active {
    color: var(--c-ink);
}
.rail-num { color: var(--c-neon); font-weight: 500; }
.rail-name { font-family: var(--f-sans); font-size: 12px; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
    .reading-rail { display: none; }
    .botanical-grid { grid-template-columns: 1fr 1fr; }
    .botanical-grid .botanical-card:nth-child(3) { grid-column: span 2; max-width: 480px; margin: 0 auto; }
}

@media (max-width: 768px) {
    :root { --gutter: 24px; }
    .documentation { padding: 64px 6vw 80px; }
    .manifesto { padding: 96px 6vw 80px; }
    .botanical { padding: 80px 6vw; }
    .spread-grid { grid-template-columns: 1fr; }
    .spread-reverse .spread-grid { grid-template-columns: 1fr; }
    .spread-reverse .column-visual { order: -1; }
    .topology-grid { grid-template-columns: 1fr 1fr; }
    .botanical-grid { grid-template-columns: 1fr; }
    .botanical-grid .botanical-card:nth-child(3) { grid-column: span 1; }
    .colophon-grid { grid-template-columns: 1fr 1fr; }
    .scroll-cue { left: 6vw; bottom: 32px; }
    .domain { font-size: clamp(54px, 14vw, 96px); }
    .failure-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .topology-grid { grid-template-columns: 1fr; }
    .colophon-grid { grid-template-columns: 1fr; }
    .masthead { font-size: 10px; letter-spacing: 0.12em; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .spread { filter: none; opacity: 1; }
    .net-edges line { stroke-dashoffset: 0; }
    .net-nodes circle { transform: scale(1); }
    .bot-line { stroke-dashoffset: 0; }
    .bot-leaves circle { opacity: 1; transform: scale(1); }
}