/* ============================================
   Shared page styles for Marketing + Product
   (specimen rhythm, chapters, cases)
   ============================================ */

/* Page scaffolding */
main.section-page { padding: 120px 32px 48px; max-width: 1600px; margin: 0 auto; display: flex; flex-direction: column; gap: 0; }

/* ——— HERO ——— */
.sp-hero {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 64px; align-items: start;
  padding: 48px 0 96px; border-bottom: 1px solid var(--line);
}
.sp-hero .lead .kicker { font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); letter-spacing: 0.24em; text-transform: uppercase; margin-bottom: 32px; }
.sp-hero .numeral {
  position: relative;
  font-family: var(--font-display); font-style: italic; font-weight: 300;
  font-size: clamp(180px, 28vw, 360px); line-height: 0.82; letter-spacing: -0.05em;
  margin: 0 0 8px;
}
.sp-hero.mk .numeral { color: var(--acc-green); opacity: 0.22; }
.sp-hero.prod .numeral { color: var(--acc-cyan); opacity: 0.22; }
.sp-hero h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(44px, 6vw, 96px); letter-spacing: -0.035em; line-height: 0.96;
  margin: 0 0 24px; max-width: 22ch;
}
.sp-hero h1 em { font-style: italic; }
.sp-hero.mk h1 em { color: var(--acc-green); }
.sp-hero.prod h1 em { color: var(--acc-cyan); }
.sp-hero .sub { font-size: 17px; line-height: 1.55; color: var(--fg-dim); max-width: 56ch; }

.sp-hero .ticker {
  font-family: var(--font-mono); font-size: 12px; color: var(--fg); line-height: 1.9;
  border-left: 1px solid var(--line); padding-left: 20px;
}
.sp-hero .ticker .trow { display: grid; grid-template-columns: 110px 60px 1fr; gap: 10px; padding: 2px 0; letter-spacing: 0.03em; }
.sp-hero .ticker .trow:hover { color: var(--fg); background: rgba(255,255,255,0.02); padding-left: 4px; }
.sp-hero .ticker .trow .nm { color: var(--fg); font-weight: 500; }
.sp-hero .ticker .trow .yr { color: var(--fg-dim); }
.sp-hero .ticker .trow .dsc { color: var(--fg-dim); }
.sp-hero.mk .ticker .trow:hover .nm { color: var(--acc-green); }
.sp-hero.prod .ticker .trow:hover .nm { color: var(--acc-cyan); }

/* ——— THESIS CHAPTER ——— */
.thesis {
  display: grid; grid-template-columns: 220px 1fr; gap: 64px;
  padding: 96px 0; border-bottom: 1px solid var(--line);
}
.thesis .kicker { font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); letter-spacing: 0.24em; text-transform: uppercase; }
.thesis h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(36px, 4.4vw, 72px); letter-spacing: -0.03em;
  line-height: 1.04; margin: 0 0 32px; max-width: 26ch;
}
.thesis .body p { font-size: 17px; line-height: 1.6; color: var(--fg); max-width: 70ch; margin: 0 0 18px; }
.thesis .pull {
  display: block; margin-left: -64px; max-width: 22ch;
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  font-size: clamp(32px, 3.6vw, 54px); line-height: 1.1; letter-spacing: -0.02em;
  color: var(--fg); padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  margin-top: 48px;
}

/* ——— CHAPTER INTRO BAND (between chapters) ——— */
.chap-band {
  padding: 120px 0; text-align: center; border-bottom: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 16px; align-items: center;
}
.chap-band .kicker { font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); letter-spacing: 0.28em; text-transform: uppercase; }
.chap-band h3 {
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  font-size: clamp(40px, 6vw, 96px); letter-spacing: -0.03em; line-height: 1;
  margin: 0; max-width: 20ch;
}
.chap-band .sub { font-family: var(--font-mono); font-size: 12px; color: var(--fg-dim); letter-spacing: 0.12em; }

/* ——— CASE STUDY ——— */
.case {
  padding: 96px 0; border-bottom: 1px solid var(--line);
  scroll-margin-top: 100px;
}
.case-head { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: start; margin-bottom: 48px; }
.case-head .specimen {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(60px, 11vw, 180px); letter-spacing: -0.045em; line-height: 0.88;
  color: var(--fg); margin: 0;
}
.case.flagship .case-head .specimen { letter-spacing: -0.055em; }
.case[data-serif] .case-head .specimen { font-family: 'Space Grotesk', serif; font-style: italic; font-weight: 400; }
.case-head .specimen-logo { line-height: 0; padding-top: 8px; }
.case-head .specimen-logo img {
  display: block;
  height: clamp(48px, 8.5vw, 138px);
  width: auto;
  max-width: 100%;
}
/* Vol logo is black-on-transparent — invert on dark themes so it reads as white. */
.case-head .specimen-logo-vol img { filter: invert(1); }
[data-theme="light"] .case-head .specimen-logo-vol img,
body[data-variant="foundry"] .case-head .specimen-logo-vol img,
body[data-variant="atelier-light"] .case-head .specimen-logo-vol img { filter: none; }

.case-head .pills { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; padding-top: 12px; }
.case-head .pills .pill {
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: transparent; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--fg-dim);
}
.case-head .pills .pill.year { color: var(--fg); border-color: var(--fg-dim); }
.case-head .pills .pill.outcome { border-color: var(--acc-green); color: var(--acc-green); }
.case-head .pills .pill.outcome-lost { border-color: var(--fg-dim); color: var(--fg-dim); }

.case h2.claim {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(32px, 4vw, 56px); letter-spacing: -0.025em; line-height: 1.08;
  margin: 0 0 48px; max-width: 28ch; color: var(--fg);
}

.case-body { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; }
.case-body .main { min-width: 0; }
.case-body .side { font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); text-transform: uppercase; letter-spacing: 0.18em; padding-top: 6px; }
.case-body .main p { font-size: 16px; line-height: 1.6; color: var(--fg); max-width: 68ch; margin: 0 0 18px; }
.case-body .main h4 {
  font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim);
  letter-spacing: 0.18em; text-transform: uppercase;
  margin: 40px 0 16px; padding-top: 12px; border-top: 1px solid var(--line);
}
.case-body .main ol, .case-body .main ul { margin: 0 0 18px; padding-left: 24px; }
.case-body .main li { font-size: 16px; line-height: 1.55; color: var(--fg); margin-bottom: 6px; max-width: 64ch; }
.case-body .main li strong { color: var(--fg); font-weight: 500; }

/* Pull quote inside case */
.pullq {
  display: block;
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  font-size: clamp(28px, 3.2vw, 44px); letter-spacing: -0.02em; line-height: 1.12;
  color: var(--fg); margin: 36px 0 36px -120px; padding: 24px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  max-width: 24ch;
}
.pullq .attr { display: block; font-family: var(--font-mono); font-style: normal; font-size: 11px; color: var(--fg-dim); letter-spacing: 0.14em; text-transform: uppercase; margin-top: 16px; }

/* Stat blocks */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  margin: 32px 0;
}
.stats.c3 { grid-template-columns: repeat(3, 1fr); }
.stats.c2 { grid-template-columns: repeat(2, 1fr); }
.stats.c4 { grid-template-columns: repeat(4, 1fr); }
.stats .s { background: var(--bg); padding: 24px; }
.stats .s .v {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(32px, 3.6vw, 56px); letter-spacing: -0.025em; line-height: 1;
}
.stats .s.yellow .v { color: var(--acc-yellow); }
.stats .s.cyan .v { color: var(--acc-cyan); }
.stats .s.green .v { color: var(--acc-green); }
.stats .s.magenta .v { color: var(--acc-magenta); }
.stats .s .k { font-family: var(--font-mono); font-size: 10px; color: var(--fg-dim); letter-spacing: 0.12em; text-transform: uppercase; margin-top: 10px; }
.stats-source { font-family: var(--font-mono); font-size: 10px; color: var(--fg-dim); letter-spacing: 0.1em; text-transform: uppercase; margin-top: 8px; }

/* Method side-rail */
.method {
  font-family: var(--font-mono); font-size: 11px; color: var(--fg); line-height: 1.9;
  border-left: 1px solid var(--acc-cyan); padding-left: 16px; letter-spacing: 0.08em;
  margin: 24px 0;
}
.method .h { color: var(--fg-dim); letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 6px; }

/* Expand accordion */
.expand { margin-top: 32px; border-top: 1px solid var(--line); }
.expand summary { cursor: pointer; padding: 18px 0; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-dim); list-style: none; display: flex; justify-content: space-between; align-items: center; }
.expand summary::-webkit-details-marker { display: none; }
.expand summary::after { content: '+'; font-size: 20px; color: var(--fg-dim); transition: transform .2s; }
.expand[open] summary::after { content: '×'; }
.expand summary:hover { color: var(--fg); }
.expand .exp-body { padding: 8px 0 24px; color: var(--fg-dim); font-size: 14px; line-height: 1.6; }
.expand .exp-body ul { padding-left: 20px; }
.expand .exp-body li { margin-bottom: 4px; color: var(--fg-dim); }

/* Table (Vol missions, Straji categories) */
table.slim { border-collapse: collapse; width: 100%; margin: 20px 0; }
table.slim td, table.slim th { border-top: 1px solid var(--line); padding: 14px 0; vertical-align: top; text-align: left; font-size: 14px; line-height: 1.5; }
table.slim th { font-family: var(--font-mono); font-size: 10px; color: var(--fg-dim); letter-spacing: 0.14em; text-transform: uppercase; font-weight: 400; padding-top: 0; border-top: none; }
table.slim td.l { font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); letter-spacing: 0.12em; text-transform: uppercase; width: 30%; }
table.slim td ol.inline-proof { margin: 0; padding-left: 20px; }
table.slim td ol.inline-proof li { font-size: 14px; line-height: 1.5; color: var(--fg); margin-bottom: 4px; max-width: none; }
table.slim td ol.inline-proof li:last-child { margin-bottom: 0; }
table.slim td ol.inline-proof li strong { color: var(--fg); font-weight: 500; }

/* Tri-column (ParaBuyer tech anatomy, Vol quadrants) */
.tri { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 24px 0; }
.tri.q4 { grid-template-columns: repeat(2, 1fr); }
.tri .col { background: var(--bg); padding: 24px; }
.tri .col h5 { font-family: var(--font-display); font-weight: 500; font-size: 17px; letter-spacing: -0.01em; margin: 0 0 14px; }
.tri .col ul { margin: 0; padding-left: 18px; }
.tri .col li { font-size: 13px; line-height: 1.55; color: var(--fg-dim); margin-bottom: 6px; }

/* Partner pill row (Vol) */
.partner-intro { font-family: var(--font-display); font-weight: 400; font-size: clamp(22px, 2.4vw, 34px); letter-spacing: -0.01em; line-height: 1.4; margin: 12px 0 24px; }
.partner-intro .pp { display: inline-flex; align-items: center; gap: 6px; padding: 2px 12px; border-radius: 999px; color: #000; font-weight: 500; margin: 0 2px; cursor: pointer; transition: transform .2s; }
.partner-intro .pp:hover { transform: translateY(-2px); }
.partner-intro .pp.fly { background: var(--acc-green); }
.partner-intro .pp.xc { background: var(--acc-cyan); }
.partner-intro .pp.ush { background: #E5D7C0; color: #B00020; }
.partner-intro .pp.rbx { background: #E41E26; color: #fff; }

.partner-sub { font-family: var(--font-body); font-size: 16px; line-height: 1.55; color: var(--ink-2, #555); max-width: 70ch; margin: 32px 0 8px; }

.partner-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 24px 0; }
.partner-cards .pc { border: 1px solid var(--line); padding: 20px; background: var(--bg-2); }
.partner-cards .pc h5 { font-family: var(--font-display); font-weight: 500; font-size: 16px; margin: 0 0 4px; }
.partner-cards .pc .st { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-dim); margin-bottom: 10px; }
.partner-cards .pc p { margin: 0 0 8px; font-size: 13px; line-height: 1.55; color: var(--fg-dim); }
.partner-cards .pc blockquote { margin: 8px 0; padding-left: 12px; border-left: 2px solid var(--acc-green); font-size: 13px; color: var(--fg); font-style: italic; }
.partner-cards .pc .attr { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-dim); }

/* Tenants table (Straji) */
.tenants { border-top: 1px solid var(--line); margin: 24px 0; }
.tenants .t { display: grid; grid-template-columns: 180px 1fr 40px; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: start; }
.tenants .t .nm { font-family: var(--font-display); font-weight: 500; font-size: 16px; }
.tenants .t .nt { font-size: 13px; color: var(--fg-dim); line-height: 1.5; }
.tenants .t .ow { font-family: var(--font-mono); font-size: 10px; color: var(--fg-dim); letter-spacing: 0.12em; text-transform: uppercase; }
.tenants .t.mine .nm { color: var(--acc-cyan); }
.tenants .t.mine:hover::after { content: '↗'; color: var(--acc-cyan); font-size: 18px; }
.tenants .t .arrow { text-align: right; color: var(--fg-dim); }

/* Product collage hero */
.collage {
  position: relative; aspect-ratio: 16/10; border: 1px solid var(--line); background: #070707;
  overflow: hidden; border-radius: 2px;
  margin: 32px 0;
}
.collage .obj {
  position: absolute; border-radius: 2px; background: var(--bg-2); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center; text-align: center;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; color: var(--fg-dim);
  text-transform: uppercase; padding: 6px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.4);
  animation: breathe 6s ease-in-out infinite;
}
@keyframes breathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.015); } }

/* Chapter close */
.chapter-close {
  padding: 140px 0 100px; text-align: center;
  display: flex; flex-direction: column; gap: 28px; align-items: center;
  border-bottom: 1px solid var(--line);
}
.chapter-close .ghost-wrap { position: relative; display: inline-block; }
.chapter-close .ghost {
  position: absolute; inset: 0;
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  color: var(--fg); opacity: 0.1;
  transform: translate(6px, 6px);
  pointer-events: none;
}
.chapter-close .front {
  position: relative;
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(36px, 5.4vw, 84px); letter-spacing: -0.025em; line-height: 1.04;
  max-width: 26ch; margin: 0 auto; color: var(--fg);
}
.chapter-close .front em { font-style: italic; }
.chapter-close .end { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--fg-dim); margin-top: 12px; }
.chapter-close .cta-row { display: flex; gap: 32px; flex-wrap: wrap; justify-content: center; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; }
.chapter-close .cta-row a { padding-bottom: 4px; border-bottom: 1px solid var(--fg-dim); }
.chapter-close .cta-row a:hover { color: var(--acc-yellow); border-color: var(--acc-yellow); }

/* Responsive */
@media (max-width: 900px) {
  .sp-hero, .thesis, .case-body { grid-template-columns: 1fr; gap: 32px; }
  .tri, .tri.q4, .partner-cards { grid-template-columns: 1fr; }
  .stats, .stats.c3, .stats.c2, .stats.c4 { grid-template-columns: repeat(2, 1fr); }
  .case-head { grid-template-columns: 1fr; }
  .case-head .pills { flex-direction: row; flex-wrap: wrap; align-items: flex-start; }
  .pullq, .thesis .pull { margin-left: 0; max-width: none; }
}

/* ——— MARKETING FLOATING CASE NAV ———
   Appears once user scrolls past the hero. Tracks active case. */
.mk-floatnav {
  position: fixed;
  left: 28px;
  top: 50%;
  transform: translate(-8px, -50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px 14px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 360ms ease, transform 480ms cubic-bezier(.2,.7,.2,1);
  border-left: 1px solid var(--line);
  background: rgba(0,0,0,0.0);
}
.mk-floatnav.is-visible.is-clear {
  opacity: 1;
  transform: translate(0, -50%);
  pointer-events: auto;
}
.mk-floatnav.is-visible:not(.is-clear) {
  /* Past the hero, but content is crowding the gutter — tuck away */
  opacity: 0;
  transform: translate(-14px, -50%);
  pointer-events: none;
}
.mk-floatnav .fn-rail { display: none; }
.mk-floatnav .fn-row {
  position: relative;
  display: grid;
  grid-template-columns: 14px auto;
  align-items: center;
  gap: 10px;
  padding: 6px 0 6px 0;
  color: var(--fg-dim);
  text-decoration: none;
  line-height: 1.2;
  transition: color 180ms ease, padding-left 220ms ease;
}
.mk-floatnav .fn-row:hover { color: var(--fg); }
.mk-floatnav .fn-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--fg-dim);
  opacity: 0.45;
  margin-left: 2px;
  transition: background 180ms ease, opacity 180ms ease, transform 220ms ease;
}
.mk-floatnav .fn-meta {
  display: inline-flex; align-items: baseline; gap: 8px;
  white-space: nowrap;
}
.mk-floatnav .fn-yr {
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
  font-size: 10px;
  letter-spacing: 0.08em;
}
.mk-floatnav .fn-nm {
  color: var(--fg);
  font-weight: 500;
  font-size: 11.5px;
}
.mk-floatnav .fn-dsc {
  grid-column: 2;
  color: var(--fg-dim);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  font-size: 10.5px;
  transition: opacity 240ms ease, max-height 260ms ease, margin-top 240ms ease;
}
.mk-floatnav .fn-row.is-active { color: var(--fg); }
.mk-floatnav .fn-row.is-active .fn-dot {
  background: var(--acc-green);
  opacity: 1;
  transform: scale(1.35);
  box-shadow: 0 0 0 3px rgba(120,180,120,0.12);
}
.mk-floatnav .fn-row.is-active .fn-nm { color: var(--acc-green); }
.mk-floatnav .fn-row.is-active .fn-dsc,
.mk-floatnav:hover .fn-row .fn-dsc {
  opacity: 1;
  max-height: 2em;
  margin-top: 2px;
}

@media (max-width: 1200px) {
  .mk-floatnav { left: 12px; font-size: 10.5px; }
  .mk-floatnav .fn-nm { font-size: 11px; }
}
@media (max-width: 900px) {
  .mk-floatnav { display: none; }
}