/* ============ Verdigris tokens ============ */
:root {
  --ink: #0F1E1C;
  --ink-2: #132623;
  --ink-3: #1A302C;
  --verdigris: #4F8A7B;
  --verdigris-soft: #86B4A6;
  --copper: #B8734A;
  --copper-bright: #D4925F;
  --linen: #EEE9E0;
  --linen-dim: #B9C4BF;
  --muted: #7C908A;
  --line: rgba(238, 233, 224, 0.12);
  --line-strong: rgba(238, 233, 224, 0.24);

  --serif: 'Gambarino', 'Iowan Old Style', Georgia, serif;
  --sans: 'Instrument Sans', -apple-system, system-ui, sans-serif;
  --mono: 'Fragment Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --gutter: clamp(16px, 4vw, 56px);
  --max: 1320px;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--linen);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
::selection { background: var(--copper); color: var(--ink); }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, ol, ul { margin: 0; }
ol, ul { padding: 0; list-style: none; }
button, input { font: inherit; color: inherit; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.dim { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 200; background: var(--linen); color: var(--ink); padding: 10px 14px; }
.skip:focus { top: 16px; }
:focus-visible { outline: 1px solid var(--copper); outline-offset: 4px; }

.label { color: var(--verdigris-soft); display: flex; gap: 14px; align-items: center; margin-bottom: 28px; }
.label span { color: var(--copper); }
.h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.1rem, 4.6vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
}
.h2 .dim { color: var(--muted); }
em { font-style: normal; color: var(--copper); }

/* ============ Texture, cursor ============ */
.grain {
  position: fixed; inset: -50%; z-index: 90; pointer-events: none; opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes grain {
  0% { transform: translate(0, 0); } 20% { transform: translate(-3%, 2%); } 40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -1%); } 80% { transform: translate(3%, 3%); } 100% { transform: translate(0, 0); }
}

.cursor-dot, .cursor-ring { display: none; }
@media (hover: hover) and (pointer: fine) {
  html.has-cursor, html.has-cursor * { cursor: none !important; }
  html.has-cursor .cursor-dot, html.has-cursor .cursor-ring {
    display: block; position: fixed; left: 0; top: 0; z-index: 150; pointer-events: none; border-radius: 50%;
  }
  .cursor-dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; background: var(--copper); }
  .cursor-ring {
    width: 38px; height: 38px; margin: -19px 0 0 -19px; border: 1px solid rgba(184, 115, 74, .55);
    transition: width .35s var(--ease), height .35s var(--ease), margin .35s var(--ease), background .35s, border-color .35s;
  }
  .cursor-ring.is-hover { width: 72px; height: 72px; margin: -36px 0 0 -36px; background: rgba(184, 115, 74, .12); border-color: transparent; }
  .cursor-ring.is-text { width: 4px; height: 30px; margin: -15px 0 0 -2px; border-radius: 2px; background: var(--copper); border-color: transparent; }
}

/* ============ Preloader ============ */
.preloader { display: none; }
.js .preloader {
  display: flex; position: fixed; inset: 0; z-index: 120; background: var(--ink);
  align-items: center; justify-content: center;
  animation: preloaderSafety .6s ease 4s forwards;
}
.js.seen .preloader, .js.intro-done .preloader { display: none; }
@media (prefers-reduced-motion: reduce) { .js .preloader { display: none; } }
@keyframes preloaderSafety { to { opacity: 0; visibility: hidden; } }
.preloader-inner { width: min(560px, 82vw); }
.preloader-words { position: relative; height: clamp(3.4rem, 9vw, 6rem); overflow: hidden; }
.preloader-words span {
  position: absolute; left: 0; top: 0; font-family: var(--serif); font-size: clamp(2.6rem, 8vw, 5rem); line-height: 1.1; letter-spacing: -0.03em;
  transform: translateY(110%);
}
.preloader-words .is-final { color: var(--copper); }
.preloader-bar { height: 1px; background: var(--line); margin: 22px 0 14px; overflow: hidden; }
.preloader-bar i { display: block; height: 100%; background: var(--copper); transform: scaleX(0); transform-origin: left; }
.preloader-meta { display: flex; justify-content: space-between; color: var(--muted); }

/* Hide hero pieces until the intro animates them in */
.motion-pending [data-hero], .motion-pending .hero-title .line > span { opacity: 0; }

/* ============ Nav ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 80;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px var(--gutter);
  transition: transform .6s var(--ease), background .4s, backdrop-filter .4s;
}
.nav.is-scrolled { background: rgba(15, 30, 28, .72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); padding-top: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.nav.is-hidden { transform: translateY(-110%); }
.wordmark { font-family: var(--serif); font-size: 22px; letter-spacing: -0.02em; }
.wordmark i { font-style: normal; color: var(--copper); }
.nav-links { display: flex; align-items: center; gap: clamp(16px, 2.6vw, 36px); font-size: 14px; }
.nav-links a:not(.btn) { color: var(--linen-dim); transition: color .3s; }
.nav-links a:not(.btn):hover { color: var(--linen); }
@media (max-width: 760px) { .hide-sm { display: none; } }

/* ============ Buttons + forms ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 56px; padding: 0 26px; border: 0; border-radius: 2px;
  background: var(--copper); color: var(--ink); font-weight: 500; font-size: 15px; white-space: nowrap;
  cursor: pointer; position: relative; overflow: hidden; isolation: isolate;
  transition: color .45s var(--ease);
}
.btn::before {
  content: ''; position: absolute; inset: 0; z-index: -1; background: var(--linen);
  transform: translateY(101%); transition: transform .5s var(--ease);
}
.btn:hover::before { transform: translateY(0); }
.btn-arrow { transition: transform .45s var(--ease); }
.btn:hover .btn-arrow { transform: translateX(4px); }
.btn-small { height: 40px; padding: 0 18px; font-size: 13px; }
.btn-ghost { background: transparent; color: var(--linen); box-shadow: inset 0 0 0 1px var(--line-strong); }
.btn-ghost:hover { color: var(--ink); }
.btn-ghost::before { background: var(--copper); }

.join { width: 100%; max-width: 560px; }
.join-row {
  display: flex; gap: 6px; padding: 6px; border: 1px solid var(--line-strong); border-radius: 3px;
  background: rgba(15, 30, 28, .55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: border-color .3s, box-shadow .3s;
}
.join-row:focus-within { border-color: var(--copper); box-shadow: 0 0 0 4px rgba(184, 115, 74, .12); }
.join input[type=email] {
  flex: 1; min-width: 0; height: 56px; padding: 0 16px; background: transparent; border: 0; outline: 0; font-size: 16px;
}
.join input::placeholder { color: var(--muted); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.join-msg { min-height: 0; font-size: 14px; margin-top: 10px; color: var(--linen-dim); }
.join-msg:empty { display: none; }
.join.is-error .join-msg { color: #E8A27A; }
.join.is-error .join-row { border-color: #C97B55; }
.join-note { color: var(--muted); margin-top: 14px; font-size: 11px; }
.join.is-loading .btn { pointer-events: none; }
.join.is-loading .btn-label { opacity: .6; }
.join.is-loading .btn-arrow { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.join.is-done .join-row { border-color: var(--verdigris); }
.join.is-done input, .join.is-done .join-note { display: none; }
.join.is-done .btn { flex: 1; pointer-events: none; background: transparent; color: var(--verdigris-soft); }
.join.is-done .join-msg { color: var(--verdigris-soft); }

@media (max-width: 520px) {
  .join-row { flex-direction: column; }
  .join input[type=email] { height: 52px; }
  .btn { width: 100%; }
}

/* ============ Hero ============ */
.hero {
  position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: center;
  padding: 120px 0 32px; overflow: hidden;
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 55% 50% at 24% 55%, rgba(15, 30, 28, .7) 0%, rgba(15, 30, 28, .15) 60%, transparent 100%),
    linear-gradient(to bottom, rgba(15, 30, 28, .6), transparent 22%, transparent 78%, var(--ink));
}
.hero-content { position: relative; z-index: 2; }
.eyebrow { color: var(--verdigris-soft); margin-bottom: clamp(22px, 3vw, 36px); }
.eyebrow i { color: var(--copper); font-style: normal; margin: 0 .6em; font-size: 9px; vertical-align: 1px; }
.hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(3.4rem, 10.5vw, 10rem); line-height: .96; letter-spacing: -0.035em;
  margin-bottom: clamp(24px, 3vw, 40px);
}
.line { display: block; overflow: hidden; padding-bottom: .06em; margin-bottom: -.06em; }
.line > span { display: inline-block; will-change: transform; }
.hero-sub { max-width: 540px; color: var(--linen-dim); font-size: clamp(16px, 1.4vw, 19px); margin-bottom: 34px; }

.hero-foot {
  position: relative; z-index: 2; display: flex; justify-content: flex-end; align-items: flex-end;
  margin-top: auto; padding-top: 56px; color: var(--linen-dim);
}
.scroll-cue { display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 10px; color: var(--muted); }
.scroll-cue i { display: block; width: 1px; height: 54px; background: var(--line); position: relative; overflow: hidden; }
.scroll-cue i::after {
  content: ''; position: absolute; left: 0; top: 0; width: 1px; height: 40%; background: var(--copper);
  animation: drip 2.2s var(--ease) infinite;
}
@keyframes drip { 0% { transform: translateY(-100%); } 100% { transform: translateY(260%); } }

/* ============ About ============ */
.about {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(36px, 7vw, 120px); align-items: center;
  padding-top: clamp(60px, 8vw, 120px); padding-bottom: clamp(110px, 14vw, 200px);
}
.about-media { position: relative; }
.about-img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 2px; }
.about-placeholder {
  display: flex; align-items: center; justify-content: center; color: var(--muted);
  background:
    repeating-linear-gradient(135deg, rgba(79, 138, 123, .08) 0 1px, transparent 1px 14px),
    linear-gradient(160deg, var(--ink-3), var(--ink-2));
  border: 1px solid var(--line);
}
.about-caption { color: var(--muted); font-size: 10px; margin-top: 14px; }
.about-copy .h2 { margin-bottom: 26px; }
.about-copy p + p { margin-top: 18px; }
.about-copy p:not(.label) { color: var(--linen-dim); max-width: 540px; }
.about-copy .lead { color: var(--linen); font-size: clamp(18px, 1.6vw, 22px); line-height: 1.5; }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; } .about-media { max-width: 460px; } }

/* ============ Guide ============ */
.guide { background: var(--ink-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; }
.guide-inner {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 7vw, 120px); align-items: center;
  padding-top: clamp(100px, 12vw, 170px); padding-bottom: clamp(100px, 12vw, 170px);
}
.guide-visual { perspective: 1200px; display: flex; justify-content: center; }
.guide-cover {
  position: relative; width: min(380px, 78vw); aspect-ratio: 3 / 4; padding: 34px 30px;
  display: flex; flex-direction: column; overflow: hidden; border-radius: 3px;
  background: linear-gradient(155deg, #1d3a35 0%, #12312C 45%, #0d2421 100%);
  box-shadow: 0 50px 90px -30px rgba(0, 0, 0, .75), inset 0 0 0 1px rgba(184, 115, 74, .35);
  transform-style: preserve-3d; will-change: transform;
}
.guide-cover::before {
  content: ''; position: absolute; left: 14px; top: 0; bottom: 0; width: 1px; background: rgba(0, 0, 0, .35); box-shadow: 1px 0 0 rgba(238, 233, 224, .06);
}
.guide-cover-shine {
  position: absolute; inset: 0; pointer-events: none; opacity: .0; transition: opacity .4s;
  background: radial-gradient(circle at var(--sx, 50%) var(--sy, 30%), rgba(212, 146, 95, .28), transparent 55%);
}
.guide-cover:hover .guide-cover-shine { opacity: 1; }
.guide-kicker { color: var(--verdigris-soft); font-size: 10px; }
.guide-cover-title { font-family: var(--serif); font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: .98; letter-spacing: -0.03em; margin-top: auto; color: var(--copper-bright); }
.guide-cover-rule { width: 48px; height: 1px; background: var(--copper); margin: 22px 0 14px; }
.guide-cover-sub { color: var(--linen-dim); font-size: 10px; }
.guide-cover-mark { position: absolute; top: 34px; right: 30px; font-size: 10px; color: var(--muted); letter-spacing: .3em; }
.guide-copy .h2 { margin-bottom: 30px; }
.guide-list { margin-bottom: 36px; border-top: 1px solid var(--line); }
.guide-list li { display: flex; gap: 18px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--linen-dim); }
.guide-list .mono { color: var(--copper); font-size: 11px; }
@media (max-width: 860px) { .guide-inner { grid-template-columns: 1fr; } .guide-visual { order: 2; } }

/* ============ Final ============ */
.final { padding-top: clamp(120px, 16vw, 240px); padding-bottom: clamp(120px, 14vw, 200px); position: relative; overflow: hidden; }
.final::before {
  content: ''; position: absolute; left: 50%; top: 55%; width: 90vw; height: 90vw; max-width: 1100px; max-height: 1100px;
  transform: translate(-50%, -50%); border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(184, 115, 74, .14), rgba(79, 138, 123, .06) 40%, transparent 70%);
}
.final-inner { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; }
.final-inner .label { justify-content: center; }
.final-title { font-family: var(--serif); font-weight: 400; font-size: clamp(3rem, 9vw, 8.6rem); line-height: .98; letter-spacing: -0.035em; margin-bottom: 52px; }
.join-center .join-row { text-align: left; }

/* ============ Footer ============ */
.footer {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  padding-top: 34px; padding-bottom: 34px; border-top: 1px solid var(--line);
}
.footer .wordmark { font-size: 20px; }
.footer a { color: var(--linen-dim); transition: color .3s; }
.footer a:hover { color: var(--copper); }

/* ============ Series ============ */
.series { padding-top: clamp(60px, 8vw, 120px); padding-bottom: clamp(110px, 14vw, 200px); }
.series .h2 { margin-bottom: clamp(36px, 5vw, 64px); }
.series-list { border-top: 1px solid var(--line); }
.series-item {
  display: grid; grid-template-columns: 70px minmax(0, 1fr) minmax(0, 1.1fr); gap: 24px; align-items: baseline;
  padding: clamp(24px, 3vw, 40px) 0; border-bottom: 1px solid var(--line);
}
.series-num { color: var(--copper); }
.series-name { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 4.4vw, 3.8rem); line-height: 1; letter-spacing: -0.03em; }
.series-text { color: var(--linen-dim); max-width: 460px; }
.series-follow { margin-top: 28px; }
.series-follow a, .join-note a { color: var(--copper); transition: color .3s; }
.series-follow a:hover, .join-note a:hover { color: var(--linen); }
@media (max-width: 760px) {
  .series-item { grid-template-columns: 44px 1fr; gap: 8px 14px; }
  .series-text { grid-column: 2; }
}
.final-sub { color: var(--linen-dim); max-width: 460px; margin: -24px auto 36px; }

/* ============ Playbook page ============ */
.pb-hero { min-height: 100svh; display: flex; align-items: center; padding: 130px 0 80px; position: relative; overflow: hidden; }
.pb-hero::before {
  content: ''; position: absolute; right: -20vw; top: 10%; width: 80vw; height: 80vw; max-width: 1000px; max-height: 1000px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(184, 115, 74, .12), rgba(79, 138, 123, .06) 40%, transparent 70%);
}
.pb-grid { position: relative; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 100px); align-items: center; }
.pb-title { font-size: clamp(3rem, 7.4vw, 7rem); margin-bottom: 28px; }
.pb-sub { color: var(--linen-dim); font-size: clamp(16px, 1.4vw, 19px); max-width: 520px; margin-bottom: 34px; }
.pb-chapters { padding-top: clamp(80px, 10vw, 140px); padding-bottom: clamp(100px, 12vw, 170px); }
.pb-chapters .h2 { margin-bottom: clamp(32px, 4vw, 56px); }
.chapter-list { border-top: 1px solid var(--line); }
.chapter {
  display: grid; grid-template-columns: 90px minmax(0, 1fr) auto; gap: 24px; align-items: baseline;
  padding: clamp(24px, 3vw, 40px) 0; border-bottom: 1px solid var(--line);
}
.chapter-num { color: var(--copper); }
.chapter-name { font-family: var(--serif); font-weight: 400; font-size: clamp(1.8rem, 3.6vw, 3rem); line-height: 1.05; letter-spacing: -0.025em; margin-bottom: 10px; }
.chapter-text { color: var(--linen-dim); max-width: 560px; }
.chapter-status { font-size: 11px; color: var(--verdigris-soft); border: 1px solid var(--line-strong); border-radius: 2px; padding: 5px 10px; white-space: nowrap; }
.chapter.is-live .chapter-status { color: var(--ink); background: var(--copper); border-color: var(--copper); }
.chapter.is-soon .chapter-name, .chapter.is-soon .chapter-num { color: var(--muted); }
.pb-how { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: clamp(48px, 6vw, 80px); }
.pb-how div { border-top: 1px solid var(--line); padding-top: 18px; }
.pb-how p.mono { color: var(--copper); margin-bottom: 10px; font-size: 11px; }
.pb-how p:not(.mono) { color: var(--linen-dim); }
@media (max-width: 860px) {
  .pb-grid { grid-template-columns: 1fr; }
  .pb-hero { padding-top: 110px; }
  .pb-hero .guide-visual { order: 2; }
  .pb-hero .guide-cover { width: min(300px, 70vw); }
  .chapter { grid-template-columns: 52px 1fr; }
  .chapter-status { grid-column: 2; justify-self: start; }
  .pb-how { grid-template-columns: 1fr; }
}

/* ============ Playbook reading page ============ */
.read-wrap { width: 100%; max-width: 760px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.read { font-size: 18px; line-height: 1.7; }
.read p { color: var(--linen-dim); }
.read strong { color: var(--linen); font-weight: 600; }
em.i { font-style: italic; color: inherit; }
.read-progress { position: fixed; left: 0; right: 0; top: 0; height: 2px; z-index: 95; pointer-events: none; }
.read-progress i { display: block; height: 100%; background: var(--copper); transform: scaleX(0); transform-origin: left; }
.read-head { padding-top: clamp(140px, 18vw, 220px); padding-bottom: clamp(40px, 6vw, 72px); }
.read-title { font-size: clamp(3rem, 8vw, 6.4rem); margin-bottom: 26px; }
.read .read-sub { font-size: clamp(19px, 1.8vw, 23px); line-height: 1.5; color: var(--linen); max-width: 620px; margin-bottom: 22px; }
.read-byline { color: var(--muted); font-size: 11px; }
.read-byline a { color: var(--copper); }
.read-how { padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.read-index { padding: clamp(48px, 7vw, 80px) 0 clamp(24px, 4vw, 40px); }
.read-index .label { margin-bottom: 18px; }
.read-index ol { border-top: 1px solid var(--line); }
.read-index li a {
  display: grid; grid-template-columns: 70px 1fr auto; gap: 18px; align-items: baseline;
  padding: 18px 0; border-bottom: 1px solid var(--line); transition: color .3s, padding .4s var(--ease);
}
.read-index li a:hover { padding-left: 10px; }
.read-index li a .mono { color: var(--copper); font-size: 11px; }
.read-index-name { font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.02em; color: var(--linen); line-height: 1.1; }
.read-index .read-index-kw { color: var(--muted); }
.read .read-index-more { color: var(--muted); font-size: 11px; margin-top: 16px; }
.read-chapter { padding-top: clamp(60px, 9vw, 110px); scroll-margin-top: 70px; }
.read-chapter > p, .read-chapter > figure, .read-chapter > div, .read-chapter > h3 { margin-top: 26px; }
.read-chapter-meta { display: flex; gap: 22px; color: var(--copper); font-size: 11px; margin-bottom: 18px; }
.read-chapter-meta span + span { color: var(--muted); }
.read-chapter-title { font-size: clamp(2.4rem, 5.6vw, 4.2rem); margin-bottom: 8px; }
.read-h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; line-height: 1.1; padding-top: 18px; }

.read-equation {
  margin: 34px 0 0; padding: clamp(28px, 5vw, 48px) clamp(20px, 4vw, 40px);
  display: flex; align-items: center; justify-content: center; gap: clamp(12px, 2.4vw, 26px); flex-wrap: wrap;
  border: 1px solid rgba(184, 115, 74, .35); border-radius: 3px;
  background: radial-gradient(ellipse 70% 90% at 50% 0%, rgba(184, 115, 74, .1), transparent 70%), var(--ink-2);
  font-family: var(--serif); letter-spacing: -0.02em; text-align: center;
}
.eq-lhs { font-size: clamp(1.7rem, 4vw, 2.6rem); color: var(--linen); }
.eq-eq { font-size: clamp(1.7rem, 4vw, 2.6rem); color: var(--muted); }
.eq-frac { display: inline-flex; flex-direction: column; align-items: stretch; gap: 10px; }
.eq-top, .eq-bottom { font-size: clamp(1.25rem, 3vw, 1.9rem); white-space: nowrap; }
.eq-top { color: var(--copper-bright); }
.eq-bottom { color: var(--verdigris-soft); }
.eq-bar { height: 1px; background: var(--linen-dim); }

.read-table-wrap { border: 1px solid var(--line); border-radius: 3px; overflow-x: auto; }
.read-table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; min-width: 640px; }
.read-table th, .read-table td { text-align: left; vertical-align: top; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.read-table thead th { font-family: var(--mono); font-weight: 400; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); background: var(--ink-2); }
.read-table tbody th { font-family: var(--serif); font-weight: 400; font-size: 20px; letter-spacing: -0.01em; color: var(--copper-bright); white-space: nowrap; }
.read-table td { color: var(--linen-dim); }
.read-table td:last-child { color: var(--linen); }
.read-table tbody tr:last-child > * { border-bottom: 0; }
@media (max-width: 680px) {
  .read-table-wrap { border: 0; overflow: visible; }
  .read-table { min-width: 0; }
  .read-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .read-table, .read-table tbody, .read-table tr, .read-table th, .read-table td { display: block; }
  .read-table tr { border: 1px solid var(--line); border-radius: 3px; margin-bottom: 14px; background: var(--ink-2); }
  .read-table tbody th { padding: 16px 16px 6px; border: 0; font-size: 22px; }
  .read-table td { padding: 8px 16px; border: 0; }
  .read-table td:last-child { padding-bottom: 16px; }
  .read-table td::before { content: attr(data-label); display: block; font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
  .read-table td:last-child::before { color: var(--copper); }
}

.read .read-callout { padding: 22px 24px; border-left: 2px solid var(--copper); background: rgba(184, 115, 74, .06); color: var(--linen); }
.read .read-source { font-size: 14px; color: var(--muted); padding-top: 22px; border-top: 1px solid var(--line); }
.read-end { margin-top: clamp(80px, 12vw, 140px); padding: clamp(80px, 10vw, 130px) 0; background: var(--ink-2); border-top: 1px solid var(--line); }
.read-end .h2 { margin-bottom: 22px; }
.read-end-follow { margin-bottom: 34px; }
.read-end-follow a { color: var(--copper); }
.read-end-follow a:hover { color: var(--linen); }

.fix-grid { display: grid; gap: 14px; margin-top: 26px; }
.fix { border: 1px solid var(--line); border-radius: 3px; padding: clamp(20px, 3vw, 28px); background: var(--ink-2); }
.read .fix-part { font-size: 10px; color: var(--copper); margin-bottom: 8px; }
.fix-title { font-family: var(--serif); font-weight: 400; font-size: clamp(1.4rem, 2.6vw, 1.75rem); letter-spacing: -0.02em; line-height: 1.15; color: var(--linen); margin: 0 0 12px; }
.read .fix-scene { color: var(--linen-dim); font-style: italic; }
.read .fix-do { color: var(--linen); margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.read .fix-why { font-size: 15px; color: var(--muted); margin-top: 10px; }
.read .fix-why strong { color: var(--verdigris-soft); font-weight: 500; }

.join-read { display: none; margin-top: 12px; font-weight: 500; color: var(--copper); }
.join.is-done .join-read { display: inline-block; }
.join-read:hover { color: var(--linen); }
.chapter-link { color: inherit; transition: color .3s; }
.chapter-link:hover { color: var(--copper); }
a.chapter-status:hover { background: var(--linen); border-color: var(--linen); }

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}