/* The Octave Spiral — field dossier (ChristCode brand) */
:root {
  --paper: #f6f1e7;
  --paper2: #efe7d6;
  --ink: #241f18;
  --ink-soft: #5b5344;
  --ink-faint: #8a8069;
  --gold: #b08428;
  --gold-pale: #e7d3a3;
  --line: #d8cdb4;
  --lane-doc: #4a6b4a;
  --lane-inf: #8a6d2f;
  --lane-hyp: #9a5b3c;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
/* grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 999; pointer-events: none;
  background-image: radial-gradient(rgba(36,31,24,.3) 0.5px, transparent 0.5px);
  background-size: 4px 4px;
  mix-blend-mode: multiply;
  opacity: .5;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }
/* masthead */
.masthead { border-bottom: 1px solid var(--line); padding: 18px 0; }
.masthead .wrap { display: flex; align-items: center; justify-content: space-between; }
.masthead img { height: 26px; display: block; }
.masthead .mark { font-family: var(--mono); font-size: 10px; letter-spacing: .2em; color: var(--ink-faint); text-transform: uppercase; }
/* filter bar */
.filterbar {
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  background: var(--paper);
  position: sticky; top: 0; z-index: 50;
}
.filterbar .wrap { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filterbar .lbl { font-family: var(--mono); font-size: 9px; letter-spacing: .2em; color: var(--ink-faint); text-transform: uppercase; margin-right: 6px; }
.fbtn {
  font-family: var(--mono); font-size: 9px; letter-spacing: .14em; text-transform: uppercase;
  border: 1px solid var(--line); background: transparent; color: var(--ink-soft);
  padding: 6px 12px; cursor: pointer;
}
.fbtn:hover { border-color: var(--gold); }
.fbtn.active { border-color: var(--gold); color: var(--gold); background: var(--paper2); }
/* hero */
.hero { padding: 88px 0 40px; }
.hero h1 {
  font-family: var(--serif); font-weight: 600; font-size: 64px; line-height: 1.05;
  letter-spacing: -.01em; margin: 18px 0 10px;
}
.hero .sub { font-family: var(--serif); font-style: italic; font-size: 26px; color: var(--ink-soft); }
.hero .lede { max-width: 640px; margin-top: 22px; font-size: 17px; }
.hero .epi { max-width: 640px; margin-top: 26px; font-size: 13.5px; color: var(--ink-soft); border-left: 2px solid var(--line); padding-left: 16px; }
/* kicker + module */
.kicker {
  font-family: var(--mono); font-size: 10px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 14px;
}
.kicker::before {
  content: ""; display: inline-block; width: 32px; height: 1px;
  background: var(--gold); margin-right: 12px; vertical-align: middle;
}
.module { position: relative; padding: 84px 0; border-top: 1px solid var(--line); }
.module::before {
  content: attr(data-num);
  position: absolute; top: 36px; right: 0;
  font-family: var(--serif); font-size: 190px; line-height: 1;
  color: var(--gold); opacity: .08; pointer-events: none;
}
.module h2 { font-family: var(--serif); font-weight: 600; font-size: 42px; line-height: 1.1; margin-bottom: 28px; }
.module p { max-width: 700px; margin-bottom: 18px; }
.module p q, .module li q { font-family: var(--serif); font-style: italic; font-size: 17.5px; }
/* pull quote */
.pull {
  font-family: var(--serif); font-style: italic; font-size: 27px; line-height: 1.4;
  margin: 34px 0; max-width: 640px;
}
.pull::before { content: "“"; color: var(--gold); }
/* lane tags */
.lane-tag {
  display: inline-block; margin-top: 10px;
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  padding: 4px 10px; border: 1px solid;
}
.lane-doc { color: var(--lane-doc); border-color: var(--lane-doc); background: rgba(74,107,74,.06); }
.lane-inf { color: var(--lane-inf); border-color: var(--lane-inf); background: rgba(138,109,47,.06); }
.lane-hyp { color: var(--lane-hyp); border-color: var(--lane-hyp); background: rgba(154,91,60,.06); }
.lane-tag.dim { opacity: .18; }
/* figures */
.fig-frame {
  position: relative; margin: 34px 0 10px;
  aspect-ratio: 21 / 9; overflow: hidden;
  border: 1px solid var(--line);
}
.fig-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.fig-frame img.photo { object-fit: contain; background: var(--paper2); }
.tick { position: absolute; width: 14px; height: 14px; border-color: var(--gold); border-style: solid; border-width: 0; z-index: 2; }
.tick.tl { top: -1px; left: -1px; border-top-width: 2px; border-left-width: 2px; }
.tick.tr { top: -1px; right: -1px; border-top-width: 2px; border-right-width: 2px; }
.tick.bl { bottom: -1px; left: -1px; border-bottom-width: 2px; border-left-width: 2px; }
.tick.br { bottom: -1px; right: -1px; border-bottom-width: 2px; border-right-width: 2px; }
figcaption {
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 26px; line-height: 1.8;
}
/* oct rows (M/F table) */
.oct {
  display: flex; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.oct .num {
  font-family: var(--serif); font-size: 34px; color: var(--gold); min-width: 44px; text-align: right;
}
.oct h4 { font-family: var(--serif); font-size: 19px; font-weight: 600; }
.oct p { margin: 0; font-size: 14px; color: var(--ink-soft); }
/* practice cards */
.card { border: 1px solid var(--line); margin: 26px 0; background: var(--paper2); }
.card-head {
  width: 100%; text-align: left; background: transparent; border: 0; cursor: pointer;
  padding: 16px 20px; font-family: var(--serif); font-size: 19px; font-weight: 600; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center;
}
.card-head .plus { font-family: var(--mono); font-size: 16px; color: var(--gold); }
.card-body { display: none; padding: 0 20px 18px; font-size: 15px; color: var(--ink-soft); }
.card.open .card-body { display: block; }
.card.open .plus { transform: rotate(45deg); }
/* spiral stage (module 01) */
.spiral-stage {
  border: 1px solid var(--line); background: var(--paper2);
  margin: 30px 0; padding: 22px;
  display: grid; grid-template-columns: 1fr 264px; gap: 22px;
}
.spiral-main { position: relative; }
.spiral-main svg { width: 100%; height: auto; display: block; }
.spiral-side {
  border-left: 1px solid var(--line); padding-left: 22px;
  display: flex; flex-direction: column;
}
.side-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.side-label { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); }
.side-mf {
  font-family: var(--serif); font-size: 30px; font-weight: 600; color: var(--gold);
  line-height: 1; min-width: 34px; text-align: center;
}
.spiral-side svg { width: 100%; max-width: 220px; height: auto; margin: 0 auto; }
.side-dir { text-align: center; margin-top: 10px; }
.side-dir span { font-family: var(--mono); font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); }
.speedo { margin-top: 18px; }
.speedo-lbl { font-family: var(--mono); font-size: 9px; letter-spacing: .22em; color: var(--ink-faint); margin-bottom: 6px; }
.speedo-track { height: 5px; background: var(--paper); border: 1px solid var(--line); }
.speedo-track div { height: 100%; width: 0%; background: var(--gold); transition: width .25s linear; }
.speedo-num { font-family: var(--mono); font-size: 10px; color: var(--gold); margin-left: 8px; }
.readout { margin-top: 14px; font-family: var(--mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); min-height: 16px; }
.spiral-ctrl {
  grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 16px;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
}
.sbtn {
  font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  border: 1px solid var(--line); background: transparent; color: var(--ink-soft);
  padding: 8px 14px; cursor: pointer;
}
.sbtn:hover { border-color: var(--gold); color: var(--gold); }
.pos-strip { display: flex; gap: 4px; margin-left: auto; }
.pos-strip button {
  width: 18px; height: 18px; border: 1px solid var(--line); background: var(--paper);
  cursor: pointer; padding: 0; position: relative;
}
.pos-strip button:hover { border-color: var(--gold); }
.pos-strip button.done { background: var(--gold-pale); }
.pos-strip button.current { background: var(--gold); }
@media (max-width: 820px) {
  .spiral-stage { grid-template-columns: 1fr; }
  .spiral-side { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 18px; }
  .pos-strip { margin-left: 0; }
}
/* signoff + companions */
.signoff { font-family: var(--serif); font-size: 24px; font-style: italic; margin-bottom: 20px; }
.cta {
  display: inline-block; font-family: var(--mono); font-size: 11px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--paper); background: var(--ink); padding: 14px 26px; text-decoration: none; margin-bottom: 30px;
}
.cta:hover { background: var(--gold); }
.companions { font-size: 14px; color: var(--ink-soft); max-width: 640px; }
.companions p { margin-bottom: 8px; }
.companions a { color: var(--gold); }
/* appendix */
.appendix { border-top: 1px solid var(--line); padding-top: 40px; }
.openq { list-style: none; max-width: 700px; }
.openq li { padding: 10px 0 10px 20px; border-bottom: 1px solid var(--line); font-size: 14.5px; color: var(--ink-soft); position: relative; }
.openq li::before { content: "?"; position: absolute; left: 0; color: var(--gold); font-family: var(--mono); }
/* footer */
footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 26px 0; }
footer p { font-family: var(--mono); font-size: 9px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); text-align: center; }
/* dot rail */
.rail { position: fixed; right: 26px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: 12px; z-index: 40; }
.rail a {
  width: 7px; height: 7px; border-radius: 50%; background: var(--line); display: block;
  position: relative;
}
.rail a.active { background: var(--gold); }
.rail a.active::after {
  content: attr(data-num);
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  font-family: var(--mono); font-size: 9px; letter-spacing: .14em; color: var(--gold);
}
@media (max-width: 1220px) { .rail { display: none; } }
/* scroll reveal (gated behind html.js so no-JS never blanks content) */
html.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; transition: none; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 42px; }
  .module h2 { font-size: 30px; }
  .module::before { font-size: 110px; }
}