/* ==========================================================================
   The Book of Avidha — story and engineering edition
   A glowing book floating in a night sky. Every right-hand page has two
   faces: the story (Literata) and how it works (JetBrains Mono).
   ========================================================================== */

@font-face { font-family: "Literata"; src: url("assets/fonts/literata-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Literata"; src: url("assets/fonts/literata-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Literata"; src: url("assets/fonts/literata-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Literata"; src: url("assets/fonts/literata-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("assets/fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("assets/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --space: #0B1030;
  --space-2: #151A4A;
  --violet: #2A1C58;
  --starlight: #FFF3D9;
  --mist: #B3BDE8;
  --gold: #F4C66A;
  --cyan: #7FE3F2;
  --lotus: #F59AB0;
  --acc: #F4C66A;
  --glass: rgba(20, 26, 70, .62);
  --edge: rgba(127, 227, 242, .2);
  --book: "Literata", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--starlight);
  font: 400 1.125rem/1.72 var(--book);
  background: linear-gradient(180deg, var(--space) 0%, var(--space-2) 60%, var(--violet) 100%) fixed;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--gold); text-decoration-thickness: 1px; text-underline-offset: .22em; }
a:hover { color: var(--starlight); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--gold); color: var(--space); }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; z-index: 40; left: 16px; top: -60px; padding: 10px 16px; border-radius: 8px; background: var(--starlight); color: var(--space); }
.skip:focus { top: 16px; }

/* ---------- Sky ---------- */
.sky { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; }
.nebula {
  position: fixed; inset: -10%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(40vmax 30vmax at 75% 30%, color-mix(in srgb, var(--acc) 16%, transparent), transparent 70%),
    radial-gradient(50vmax 34vmax at 15% 85%, rgba(245, 154, 176, .10), transparent 70%),
    radial-gradient(36vmax 26vmax at 20% 15%, rgba(127, 227, 242, .08), transparent 70%);
}
main { position: relative; z-index: 2; padding: 0 clamp(12px, 3vw, 40px) 140px; }

/* ---------- Top bar ---------- */
.bar {
  position: fixed; z-index: 20; top: 14px; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 6px; padding: 6px 6px 6px 18px;
  background: rgba(11, 16, 48, .72); border: 1px solid var(--edge); border-radius: 999px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 10px 40px -20px rgba(0,0,0,.8);
  font: 500 .8125rem/1 var(--mono); white-space: nowrap;
}
.bar a { color: var(--mist); text-decoration: none; padding: 8px 10px; border-radius: 999px; }
.bar a:hover { color: var(--starlight); }
.bar__home { color: var(--starlight) !important; font: 600 .95rem/1 var(--book); padding-left: 0 !important; }
.mode { display: flex; margin-left: 6px; padding: 3px; border-radius: 999px; background: rgba(127, 227, 242, .08); }
.mode__btn { font: 500 .8125rem/1 var(--mono); color: var(--mist); background: none; border: 0; padding: 8px 12px; border-radius: 999px; cursor: pointer; transition: background .3s, color .3s; }
.mode__btn.is-on[data-mode="story"] { background: var(--gold); color: var(--space); }
.mode__btn.is-on[data-mode="tech"] { background: var(--cyan); color: var(--space); }

/* ---------- Illustrations, drawn in light ---------- */
.ill { width: 100%; height: auto; overflow: visible; filter: drop-shadow(0 0 6px rgba(127, 227, 242, .35)); }
.ill .ink, .ill .ink-l { stroke: #CFF6FF; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.ill .ink-l { stroke-width: 1.8; }
.ill path.ink:not([class*=" "]), .ill .ink-l, .ill .ink-p, .ill .ink-c, .ill .le-s, .ill .dash, .ill .wave { fill: none; }
.ill .ink-p { stroke: rgba(207, 246, 255, .3); stroke-width: 1.6; }
.ill .ink-c { stroke: var(--cyan); stroke-width: 2.4; }
.ill .le-s { stroke: #8BE3A2; stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }
.ill .dash { stroke-dasharray: 5 8; }
.ill .ch  { fill: color-mix(in srgb, var(--acc) 42%, transparent); }
.ill .tu, .ill .star { fill: rgba(244, 198, 106, .8); }
.ill .lo  { fill: rgba(245, 154, 176, .62); }
.ill .le  { fill: rgba(139, 227, 162, .45); }
.ill .pa  { fill: rgba(255, 243, 217, .14); }
.ill .sk, .ill .ni, .ill .hill { fill: rgba(127, 227, 242, .05); }
.ill .rv  { fill: rgba(127, 227, 242, .3); }
.ill .dk  { fill: rgba(11, 16, 48, .9); }
.ill .sh  { fill: rgba(127, 227, 242, .08); }
.ill .dkh { fill: rgba(11, 16, 48, .6); }
.ill .dkw { fill: rgba(11, 16, 48, .9); }
.ill .cy  { fill: rgba(127, 227, 242, .6); }
.ill .orb { fill: rgba(127, 227, 242, .25); }
.ill .steam { fill: none; stroke: rgba(255, 243, 217, .6); stroke-width: 3; }
.ill rect.sk, .ill rect.ni { stroke: rgba(127, 227, 242, .25); stroke-width: 1.5; stroke-dasharray: 2 6; }
.js .spread.open .ill .fly { animation: fly 3.2s var(--ease) infinite alternate; }
.js .spread.open .ill .steam, .js .spread.open .ill .smoke { animation: rise 4s ease-in-out infinite alternate; }
.js .spread.open .ill .sat { animation: drift 6s ease-in-out infinite alternate; }
.js .spread.open .ill .ring { animation: ring .9s ease-in-out 3; transform-origin: 200px 110px; }
.js .spread.open .ill .wave-hand { animation: wave 1.4s ease-in-out 2; transform-origin: 340px 150px; }
.js .spread.open .ill .orb { animation: glow 2.4s ease-in-out infinite alternate; }
@keyframes fly { to { transform: translate(8px, -6px); } }
@keyframes rise { to { transform: translateY(-6px); opacity: .6; } }
@keyframes drift { to { transform: translateX(-14px); } }
@keyframes ring { 25% { transform: rotate(-6deg); } 75% { transform: rotate(6deg); } }
@keyframes wave { 50% { transform: rotate(14deg); } }
@keyframes glow { to { fill: rgba(127, 227, 242, .6); } }

/* ---------- Cover ---------- */
.cover-page { position: relative; min-height: 100svh; display: grid; place-items: center; align-content: center; gap: 22px; padding: 12vh 0 6vh; }
.orbit { position: absolute; left: 50%; top: 46%; width: min(820px, 140vw); aspect-ratio: 1; transform: translate(-50%, -50%); pointer-events: none; }
.orbit svg { width: 100%; height: 100%; overflow: visible; }
.orbit circle { fill: none; stroke: var(--cyan); stroke-opacity: .22; }
.orbit .o1 { stroke-dasharray: 2 10; }
.orbit .o2 { stroke-opacity: .12; }
.orbit .o3 { stroke: var(--gold); stroke-opacity: .16; stroke-dasharray: 60 30 4 30; }
.orbit .o4 circle { fill: var(--gold); stroke: none; }
.js .orbit svg { animation: turn 90s linear infinite; }
.js .orbit .o3 { animation: turn 140s linear infinite reverse; transform-origin: 300px 300px; }
@keyframes turn { to { transform: rotate(360deg); } }
.book-cover {
  position: relative; z-index: 1; width: min(520px, 90vw); padding: clamp(28px, 5vw, 48px) clamp(24px, 5vw, 52px) 30px; text-align: center;
  background: linear-gradient(160deg, rgba(40, 46, 110, .78), rgba(20, 22, 64, .86));
  border: 1px solid rgba(244, 198, 106, .4); border-radius: 6px 16px 16px 6px;
  box-shadow: inset 6px 0 0 rgba(0,0,0,.25), inset 0 0 0 8px rgba(255,255,255,.02), inset 0 0 0 9px rgba(244,198,106,.25),
              0 0 80px -10px rgba(127, 227, 242, .35), 0 40px 90px -30px rgba(0,0,0,.9);
  backdrop-filter: blur(8px);
}
.js .book-cover { animation: arrive 1.6s var(--ease) both; }
@keyframes arrive { from { opacity: 0; transform: translateY(28px) scale(.97); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }
.book-cover__by { margin: 0 0 14px; font: 500 .8125rem/1 var(--mono); letter-spacing: .14em; color: var(--cyan); }
.book-cover__title { margin: 0; font: 700 clamp(2.9rem, 8.6vw, 5rem)/.95 var(--book); letter-spacing: -.02em; color: var(--starlight); text-shadow: 0 0 30px rgba(244, 198, 106, .35); }
.book-cover__sub { margin: 14px auto 0; max-width: 26em; font: 400 italic 1.05rem/1.45 var(--book); color: #F4E3BC; }
.book-cover__ill { margin: 4px auto 0; max-width: 400px; --acc: #7FE3F2; }
.book-cover__note { margin: 0 auto; max-width: 30ch; font-size: .92rem; line-height: 1.5; color: var(--mist); }
.open-book { position: relative; z-index: 1; font: 500 .95rem/1 var(--mono); color: var(--space); text-decoration: none; padding: 14px 24px; border-radius: 999px; background: var(--gold); box-shadow: 0 0 30px -4px rgba(244, 198, 106, .6); }
.open-book:hover { color: var(--space); background: var(--starlight); }
.hint { position: relative; z-index: 1; margin: 0; max-width: 32em; text-align: center; font-size: .95rem; color: var(--mist); }

/* ---------- Spreads ---------- */
.spread { position: relative; display: grid; grid-template-columns: 1fr 1fr; width: min(1200px, 100%); margin: 12vh auto; scroll-margin-top: 80px; }
.spread::before { content: ""; position: absolute; inset: 6% 4%; z-index: -1; border-radius: 40px; background: radial-gradient(closest-side, color-mix(in srgb, var(--acc) 26%, transparent), transparent); filter: blur(30px); opacity: .8; }
.spread::after { content: ""; position: absolute; top: 3%; bottom: 3%; left: 50%; width: 2px; transform: translateX(-50%); z-index: 3; pointer-events: none; background: linear-gradient(transparent, color-mix(in srgb, var(--acc) 80%, white), transparent); box-shadow: 0 0 18px 2px color-mix(in srgb, var(--acc) 60%, transparent); }
.page { position: relative; min-height: min(88vh, 880px); padding: clamp(32px, 4.2vw, 62px) clamp(26px, 4vw, 58px) 74px; background: var(--glass); border: 1px solid var(--edge); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.page--l { border-radius: 16px 4px 4px 16px; border-right: 0; display: flex; flex-direction: column; box-shadow: inset 0 0 0 1px rgba(244,198,106,.06), -20px 30px 60px -40px rgba(0,0,0,.9); }
.page--r { border-radius: 4px 16px 16px 4px; border-left: 0; box-shadow: inset 0 0 0 1px rgba(244,198,106,.06), 20px 30px 60px -40px rgba(0,0,0,.9); }
.js .spread .page { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .spread .page--r { transition-delay: .12s; }
.js .spread.open .page { opacity: 1; transform: none; }
.run { margin: 0 0 26px; font: 400 .75rem/1 var(--mono); letter-spacing: .08em; color: var(--mist); opacity: .85; }
.folio { position: absolute; bottom: 26px; left: clamp(26px, 4vw, 58px); margin: 0; font: 400 .8125rem/1 var(--mono); color: var(--mist); }
.folio--r { left: auto; right: clamp(26px, 4vw, 58px); }
.chap { margin: 0 0 8px; font: 400 italic 1.25rem/1 var(--book); color: var(--acc); }
.spread h2 { margin: 0 0 18px; font: 700 clamp(2rem, 3.3vw, 2.9rem)/1.06 var(--book); letter-spacing: -.015em; text-wrap: balance; color: var(--starlight); }
.ill-wrap { margin: auto 0; padding: 16px 0; }
.where { margin: 18px 0 0; font: 400 .875rem/1.5 var(--mono); color: var(--mist); }

/* ---------- Right page: tabs + two faces ---------- */
.tabs { display: inline-flex; gap: 4px; padding: 4px; margin: 0 0 26px; border-radius: 999px; background: rgba(127, 227, 242, .07); border: 1px solid var(--edge); }
.tabs button { font: 500 .8125rem/1 var(--mono); color: var(--mist); background: none; border: 0; padding: 9px 14px; border-radius: 999px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--starlight); color: var(--space); }
.spread.flipped .tabs button[aria-selected="true"] { background: var(--cyan); }
.card { display: grid; perspective: 2200px; }
.face { grid-area: 1 / 1; min-width: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; transition: transform .9s var(--ease), opacity .45s, visibility 0s .45s; }
.js .face--tech { transform: rotateY(180deg); opacity: 0; visibility: hidden; }
.js .spread.flipped .face--story { transform: rotateY(-180deg); opacity: 0; visibility: hidden; }
.js .spread.flipped .face--tech { transform: none; opacity: 1; visibility: visible; transition: transform .9s var(--ease), opacity .45s .15s, visibility 0s; }
.js .face--story { visibility: visible; }
html:not(.js) .face--tech { margin-top: 40px; padding-top: 30px; border-top: 1px dashed var(--edge); }
html:not(.js) .card { display: block; }
html:not(.js) .tabs, html:not(.js) .flip-cta { display: none; }

.story p { margin: 0 0 1em; max-width: 34em; text-wrap: pretty; }
.story p:first-child::first-letter { float: left; font: 700 3.5em/.82 var(--book); color: var(--acc); margin: .06em .1em 0 0; text-shadow: 0 0 20px color-mix(in srgb, var(--acc) 60%, transparent); }
.figs { display: flex; flex-wrap: wrap; gap: 14px 38px; margin: 26px 0 4px; padding-top: 20px; border-top: 1px solid var(--edge); }
.figs > div { display: flex; flex-direction: column-reverse; }
.figs dd { margin: 0; font: 600 2.4rem/1 var(--book); color: var(--acc); text-shadow: 0 0 24px color-mix(in srgb, var(--acc) 50%, transparent); }
.figs dt { margin-top: 6px; font: 400 .8125rem/1.35 var(--mono); color: var(--mist); max-width: 15em; }
.flip-cta { display: inline-flex; align-items: center; gap: 10px; margin-top: 30px; padding: 11px 18px; font: 500 .875rem/1 var(--mono); color: var(--cyan); background: rgba(127, 227, 242, .06); border: 1px solid rgba(127, 227, 242, .35); border-radius: 999px; cursor: pointer; transition: background .3s, box-shadow .3s; }
.flip-cta::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.flip-cta:hover { background: rgba(127, 227, 242, .14); box-shadow: 0 0 24px -6px var(--cyan); }
.face--tech .flip-cta { color: var(--gold); border-color: rgba(244,198,106,.4); background: rgba(244,198,106,.06); }
.face--tech .flip-cta::before { background: var(--gold); box-shadow: 0 0 10px var(--gold); }

.face--tech { font-size: 1rem; line-height: 1.65; }
.face--tech h3 { margin: 28px 0 14px; font: 500 .8125rem/1.3 var(--mono); letter-spacing: .06em; color: var(--cyan); }
.face--tech h3:first-child { margin-top: 0; }
.face--tech > p { margin: 14px 0; color: #E6E0D2; max-width: 36em; }
.flow { list-style: none; margin: 0; padding: 0; counter-reset: f; display: grid; gap: 8px; }
.flow li { counter-increment: f; position: relative; display: grid; grid-template-columns: 9.5em 1fr; gap: 12px; align-items: baseline; padding: 10px 14px 10px 40px; background: rgba(127, 227, 242, .05); border: 1px solid var(--edge); border-radius: 10px; }
.flow li::before { content: counter(f); position: absolute; left: 12px; top: 11px; width: 18px; height: 18px; display: grid; place-items: center; font: 500 .6875rem/1 var(--mono); color: var(--space); background: var(--cyan); border-radius: 50%; box-shadow: 0 0 10px rgba(127,227,242,.6); }
.flow li:not(:last-child)::after { content: ""; position: absolute; left: 20.5px; bottom: -9px; width: 1px; height: 9px; background: var(--cyan); }
.flow b { font: 500 .875rem/1.3 var(--mono); color: var(--starlight); }
.flow span { font-size: .9375rem; color: var(--mist); line-height: 1.45; }
.code { margin: 16px 0; border: 1px solid var(--edge); border-radius: 10px; overflow: hidden; background: rgba(6, 9, 30, .78); }
.code figcaption { display: flex; align-items: center; gap: 8px; padding: 9px 14px; font: 400 .75rem/1 var(--mono); color: var(--mist); border-bottom: 1px solid var(--edge); background: rgba(127, 227, 242, .04); }
.code__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--acc); box-shadow: 0 0 8px var(--acc); }
.code pre { margin: 0; padding: 14px 16px; overflow-x: auto; font: 400 .78rem/1.7 var(--mono); color: #DCE6FF; tab-size: 4; }
.t-s { color: #A8E6B4; } .t-k { color: #F59AB0; } .t-c { color: #8C97C6; font-style: italic; } .t-n { color: var(--gold); }
.tbl-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--edge); border-radius: 10px; }
.tbl { width: 100%; border-collapse: collapse; font: 400 .84rem/1.4 var(--mono); }
.tbl th, .tbl td { padding: 10px 14px; text-align: left; border-bottom: 1px solid rgba(127, 227, 242, .12); white-space: nowrap; }
.tbl thead th { color: var(--cyan); font-weight: 500; background: rgba(127, 227, 242, .05); }
.tbl tbody th { font-weight: 400; color: var(--starlight); }
.tbl td { color: var(--mist); }
.tbl tr:last-child th, .tbl tr:last-child td { border-bottom: 0; }
.tbl tr.hi th, .tbl tr.hi td { color: var(--gold); background: rgba(244, 198, 106, .06); }
.bars, .duo { list-style: none; margin: 16px 0; padding: 0; display: grid; gap: 12px; }
.bars li { display: grid; grid-template-columns: 12em 1fr 4.2em; gap: 12px; align-items: center; font: 400 .84rem/1.3 var(--mono); }
.bars__k { color: var(--starlight); }
.bars__v { color: var(--gold); text-align: right; }
.bars__t { position: relative; height: 10px; border-radius: 99px; background: rgba(127, 227, 242, .1); }
.bars__f { position: absolute; top: 0; bottom: 0; left: calc(var(--a) * 2%); width: calc((var(--b) - var(--a)) * 2%); border-radius: 99px; background: linear-gradient(90deg, var(--lotus), var(--gold)); box-shadow: 0 0 12px rgba(244,198,106,.5); }
.duo li { display: grid; grid-template-columns: 8.5em 1fr; gap: 12px; align-items: center; font: 400 .84rem/1.3 var(--mono); }
.duo__legend { display: flex !important; gap: 18px; color: var(--mist); font-size: .75rem; }
.duo__legend span::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.duo__legend .d2::before { background: rgba(179, 189, 232, .55); } .duo__legend .d4::before { background: var(--cyan); }
.duo__k { color: var(--starlight); }
.duo__bars { display: grid; gap: 4px; }
.duo__bars span { position: relative; height: 9px; width: calc(var(--v) * .8%); border-radius: 0 4px 4px 0; }
.duo__bars .d2 { background: rgba(179, 189, 232, .55); }
.duo__bars .d4 { background: var(--cyan); box-shadow: 0 0 10px rgba(127,227,242,.5); }
.duo__bars em { position: absolute; left: calc(100% + 6px); top: 50%; transform: translateY(-50%); font-style: normal; font-size: .72rem; color: var(--mist); }
.shots { display: grid; gap: 12px; margin: 18px 0 6px; align-items: start; }
.shots--1 { grid-template-columns: 1fr; }
.shots--2 { grid-template-columns: 1fr 1fr; }
.shots--3 { grid-template-columns: 1fr 1fr 1fr; }
.shot { display: block; border-radius: 8px; overflow: hidden; border: 1px solid var(--edge); box-shadow: 0 14px 30px -16px rgba(0,0,0,.9); transition: transform .35s var(--ease), box-shadow .35s; }
.shot:hover { transform: translateY(-3px); box-shadow: 0 0 0 1px var(--cyan), 0 0 30px -6px rgba(127,227,242,.6); }
.cap { margin: 8px 0 0; font: 400 .8125rem/1.5 var(--mono); color: var(--mist); }
.link { margin: 22px 0 0; }
.link a { font: 500 .9rem/1 var(--mono); }
.cover { display: block; width: 44%; margin: 26px 0 0; transform: rotate(-3deg); border-radius: 4px; overflow: hidden; box-shadow: 0 0 60px -10px rgba(244,198,106,.6), 0 24px 40px -18px rgba(0,0,0,.8); transition: transform .4s var(--ease); }
.cover:hover { transform: rotate(0) scale(1.02); }

.listen[hidden] { display: none; }
.listen { display: inline-flex; align-items: center; gap: 10px; margin: -6px 0 20px; padding: 8px 16px 8px 8px; border: 1px solid rgba(244,198,106,.45); border-radius: 999px; background: rgba(244,198,106,.07); color: var(--gold); font: 500 .875rem/1 var(--mono); cursor: pointer; }
.listen__icon { width: 26px; height: 26px; border-radius: 50%; background: var(--gold); position: relative; box-shadow: 0 0 12px rgba(244,198,106,.6); }
.listen__icon::after { content: ""; position: absolute; left: 10px; top: 7px; border-left: 9px solid var(--space); border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.listen.playing .listen__icon::after { left: 8px; top: 8px; width: 10px; height: 10px; border: 0; background: linear-gradient(90deg, var(--space) 0 3px, transparent 3px 7px, var(--space) 7px); }

.spread--toc h2 { font-size: clamp(2.2rem, 3.6vw, 3rem); }
.dedic { margin: auto 0; text-align: center; padding: 0 6%; }
.dedic p { font: 400 italic 1.2rem/1.6 var(--book); color: #E6DDC8; }
.dedic__small { font: 400 .875rem/1.4 var(--mono) !important; color: var(--lotus) !important; font-style: normal !important; }
.toc { list-style: none; margin: 0; padding: 0; }
.toc a { display: grid; grid-template-columns: 2.4em 1fr auto; align-items: baseline; gap: 8px; padding: 10px 0; text-decoration: none; color: var(--starlight); border-bottom: 1px solid rgba(127, 227, 242, .12); }
.toc__n { font: 500 .8125rem/1 var(--mono); color: var(--cyan); }
.toc__p { font: 400 .8125rem/1 var(--mono); color: var(--mist); }
.toc a:hover .toc__t { color: var(--gold); }
.shorts { margin: 0; padding: 0; list-style: none; }
.shorts li { position: relative; padding-left: 1.5em; margin: 0 0 .9em; color: #E6E0D2; }
.shorts li::before { content: "✦"; position: absolute; left: 0; color: var(--gold); text-shadow: 0 0 10px var(--gold); }
.shorts b { font-weight: 600; color: var(--starlight); }
.end__p { color: #E6E0D2; max-width: 32em; }
.contact { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 8px; }
.contact a { font: 600 1.5rem/1.3 var(--book); color: var(--gold); }
.the-end { margin: 44px 0 8px; text-align: center; font: 400 italic 1.6rem/1 var(--book); color: var(--starlight); text-shadow: 0 0 20px rgba(244,198,106,.5); }
.colophon { margin: 0; text-align: center; font: 400 .75rem/1.6 var(--mono); color: var(--mist); }

body.tech .nebula { background: radial-gradient(40vmax 30vmax at 75% 30%, rgba(127, 227, 242, .14), transparent 70%), radial-gradient(50vmax 34vmax at 15% 85%, rgba(157, 180, 255, .1), transparent 70%); }
body.tech::after { content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none; background-image: linear-gradient(rgba(127,227,242,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(127,227,242,.045) 1px, transparent 1px); background-size: 48px 48px; -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%); mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%); }

.ask { position: fixed; z-index: 20; right: clamp(16px, 3vw, 36px); bottom: 22px; display: inline-flex; align-items: center; gap: 10px; padding: 11px 18px 11px 12px; border-radius: 999px; border: 1px solid var(--edge); background: rgba(11, 16, 48, .82); color: var(--starlight); font: 500 .875rem/1 var(--mono); backdrop-filter: blur(12px); cursor: pointer; box-shadow: 0 0 30px -10px rgba(127,227,242,.6); }
.ask:hover { border-color: var(--cyan); }
.ask__orb { width: 16px; height: 16px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #fff, #7FE3F2 40%, #1C8FB0); box-shadow: 0 0 12px 2px rgba(127,227,242,.7); }
.jarvis { width: min(600px, calc(100vw - 24px)); max-height: min(80vh, 660px); padding: 0; border: 1px solid rgba(127,227,242,.3); border-radius: 14px; background: rgba(14, 19, 54, .97); color: var(--starlight); box-shadow: 0 40px 90px -20px rgba(0,0,0,.9), 0 0 60px -20px rgba(127,227,242,.4); }
.jarvis::backdrop { background: rgba(5, 8, 24, .6); }
.jarvis[open] { animation: pop .3s var(--ease); }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
.jarvis__inner { display: flex; flex-direction: column; max-height: inherit; }
.jarvis__head { display: flex; gap: 12px; justify-content: space-between; align-items: start; padding: 16px 16px 12px 22px; border-bottom: 1px solid var(--edge); }
.jarvis__head p { margin: 0; font-size: .95rem; line-height: 1.45; color: var(--mist); }
.jarvis__head b { color: var(--cyan); }
.jarvis__x { width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--edge); background: none; font-size: 1.4rem; line-height: 1; color: var(--starlight); cursor: pointer; }
.jarvis__log { flex: 1; overflow-y: auto; padding: 16px 22px; display: flex; flex-direction: column; gap: 12px; min-height: 130px; }
.msg { max-width: 92%; font-size: 1rem; line-height: 1.55; }
.msg p { margin: 0 0 .3rem; }
.msg--you { align-self: flex-end; padding: 8px 14px; border-radius: 14px 14px 4px 14px; background: rgba(244,198,106,.14); border: 1px solid rgba(244,198,106,.3); }
.msg__src { font: 400 .78rem/1.4 var(--mono); color: var(--mist); }
.jarvis__chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 22px 12px; }
.jarvis__chips button { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--edge); background: none; font: 400 .78rem/1.2 var(--mono); color: var(--starlight); cursor: pointer; }
.jarvis__chips button:hover { border-color: var(--cyan); color: var(--cyan); }
.jarvis__input { display: flex; gap: 10px; padding: 12px 12px 12px 22px; border-top: 1px solid var(--edge); }
.jarvis__input input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; font: 400 1rem/1.4 var(--book); color: var(--starlight); }
.jarvis__input input::placeholder { color: rgba(179,189,232,.7); }
.jarvis__input button { padding: 10px 18px; border-radius: 999px; border: 0; background: var(--cyan); color: var(--space); font: 500 .875rem/1 var(--mono); cursor: pointer; }

@media (max-width: 900px) {
  body { font-size: 1.0625rem; }
  .bar { top: 10px; padding-left: 6px; }
  .bar__home, .bar__toc { display: none; }
  .mode { margin-left: 0; }
  .spread { grid-template-columns: 1fr; margin: 8vh auto; }
  .spread::after { display: none; }
  .page { min-height: 0; padding: 30px 22px 64px; }
  .page--l { border-radius: 16px 16px 4px 4px; border-right: 1px solid var(--edge); border-bottom: 0; }
  .page--r { border-radius: 4px 4px 16px 16px; border-left: 1px solid var(--edge); border-top: 1px dashed var(--edge); }
  .ill-wrap { margin: 6px 0; }
  .shots--3 { grid-template-columns: 1fr 1fr; }
  .shots--3 .shot:last-child { grid-column: 1 / -1; }
  .flow li { grid-template-columns: 1fr; gap: 2px; }
  .bars li { grid-template-columns: 1fr 4.2em; }
  .bars__k { grid-column: 1 / -1; }
  .duo li { grid-template-columns: 1fr; gap: 4px; }
  .cover { width: 60%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}
@media print {
  .sky, .nebula, .bar, .ask, .orbit { display: none !important; }
  body { background: #fff; color: #000; }
  .face--tech { transform: none !important; opacity: 1 !important; visibility: visible !important; }
  .card { display: block; }
}
.stick { position: sticky; top: 96px; }
.stick .ill-wrap { margin: 36px 0 0; }
@media (max-width: 900px) { .stick { position: static; } .stick .ill-wrap { margin: 14px 0 0; } }