/* Analytica Deep Research — deep.analytica-data.ai */

:root {
  --deep: #0c1826;
  --deep-2: #102032;
  --deep-3: #16293f;
  --hair-dark: #23394f;
  --paper: #f3f7f9;
  --card: #ffffff;
  --ink: #12232f;
  --muted: #52697c;
  --muted-dark: #8fa6b8;
  --line: #d8e2e9;
  --azure: #24759e;
  --sky: #5bb8dc;
  --sky-2: #a9dbe6;
  --verify: #1b7a4e;
  --refute: #b3403c;
  --infer: #96690f;
  --grad: linear-gradient(92deg, #5bb8dc, #a9dbe6);
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
  --w: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--azure); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; }

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-head { background: var(--deep); }
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 26px; padding-bottom: 26px;
}
.brand { display: flex; align-items: baseline; gap: 14px; text-decoration: none; }
.brand img { height: 20px; width: auto; }
.brand .word {
  font-weight: 800; font-size: 1.3rem; letter-spacing: 0.06em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  color: transparent; line-height: 1;
}
.brand .div-name {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.22em;
  color: var(--sky-2); text-transform: uppercase; white-space: nowrap;
}
.site-nav { display: flex; gap: 30px; align-items: center; }
.site-nav a {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em;
  color: var(--muted-dark); text-decoration: none; text-transform: uppercase;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: #fff; }
.site-nav a.nav-cta {
  color: var(--deep); background: var(--grad); padding: 9px 16px; border-radius: 3px;
  font-weight: 500;
}
.site-nav a.nav-cta:hover { color: var(--deep); filter: brightness(1.06); }

/* ---------- dark sections ---------- */
.dark { background: var(--deep); color: #e8eef4; }
.dark .eyebrow { color: var(--sky); }

.eyebrow {
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--azure); display: block; margin-bottom: 22px;
}

/* ---------- hero ---------- */
.hero { padding: 72px 0 0; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: start;
}
h1 {
  font-family: var(--serif); font-weight: 600; font-size: clamp(2.4rem, 5vw, 3.9rem);
  line-height: 1.06; letter-spacing: -0.015em; color: #f4f8fb;
}
h1 .kill { position: relative; white-space: nowrap; }
h1 .kill::after {
  content: ""; position: absolute; left: -1%; right: -1%; top: 54%; height: 3px;
  background: var(--refute); transform: scaleX(0); transform-origin: left;
  animation: strike 0.5s ease-out 2.6s forwards;
}
@keyframes strike { to { transform: scaleX(1); } }
.hero-sub { margin-top: 28px; max-width: 33em; color: #b9c9d6; font-size: 1.1rem; }
.hero-actions { margin-top: 38px; display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-block; text-decoration: none; font-family: var(--mono);
  font-size: 0.82rem; letter-spacing: 0.06em; padding: 14px 24px; border-radius: 3px;
}
.btn-solid { background: var(--grad); color: var(--deep); font-weight: 500; }
.btn-solid:hover { filter: brightness(1.06); }
.btn-ghost { color: #dceaf2; border: 1px solid var(--hair-dark); }
.btn-ghost:hover { border-color: var(--sky); color: #fff; }
.dark .btn-ghost { color: #dceaf2; }
.light-btn-ghost { color: var(--azure); border: 1px solid var(--line); }

/* ---------- ledger (signature) ---------- */
.ledger {
  background: var(--deep-2); border: 1px solid var(--hair-dark); border-radius: 4px;
  font-family: var(--mono); font-size: 0.8rem; overflow: hidden;
}
.ledger-head {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 13px 18px; border-bottom: 1px solid var(--hair-dark);
  color: var(--sky-2); letter-spacing: 0.12em; font-size: 0.68rem; text-transform: uppercase;
}
.ledger-head span:last-child { color: #5d7690; }
.ledger-rows { padding: 6px 0; }
.lrow {
  display: grid; grid-template-columns: 52px 1fr auto; gap: 12px; align-items: baseline;
  padding: 10px 18px; opacity: 0; transform: translateY(4px);
}
.lrow.on { opacity: 1; transform: none; transition: opacity 0.45s ease, transform 0.45s ease; }
.lrow .cid { color: #5d7690; }
.lrow .claim { color: #c8d6e2; }
.lrow .status { white-space: nowrap; color: #5d7690; }
.lrow .status::before { content: "· · ·"; }
.lrow.resolved .status::before { content: ""; }
.lrow.resolved.v .status { color: #4fc48b; }
.lrow.resolved.r .status { color: #e07a76; }
.lrow.resolved.i .status { color: #d9a83f; }
.lrow.resolved.r .claim { text-decoration: line-through; text-decoration-color: var(--refute); color: #6e8093; }
.ledger-foot {
  padding: 13px 18px; border-top: 1px solid var(--hair-dark);
  color: #5d7690; font-size: 0.7rem; letter-spacing: 0.06em;
}
.ledger-foot strong { color: var(--sky-2); font-weight: 500; }
.no-js .lrow, .reduced .lrow { opacity: 1; transform: none; }
.no-js .lrow .status::before, .reduced .lrow .status::before { content: ""; }

/* proof line under hero */
.proofline { margin-top: 72px; border-top: 1px solid var(--hair-dark); }
.proofline .wrap {
  display: flex; flex-wrap: wrap; gap: 8px 34px; justify-content: space-between;
  padding-top: 22px; padding-bottom: 26px;
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; color: #7b91a5;
}
.proofline b { color: var(--sky-2); font-weight: 500; }

/* ---------- light editorial sections ---------- */
.section { padding: 78px 0; }
.section + .section { border-top: 1px solid var(--line); }

h2 {
  font-family: var(--serif); font-weight: 600; font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  line-height: 1.12; letter-spacing: -0.01em;
}
.dark h2 { color: #f4f8fb; }
h3 { font-size: 1.05rem; font-weight: 600; }

/* two-column section header: heading left, intro right — no dead space beside h2 */
.sec-head {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 24px 56px; align-items: end; margin-bottom: 44px;
}
.sec-head .eyebrow { grid-column: 1 / -1; margin-bottom: 0; }
.sec-head .intro { color: var(--muted); font-size: 1rem; max-width: 34em; padding-bottom: 4px; }

/* generic 3-up tile grid */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 26px 26px 28px; }
.tile .tid {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em;
  color: var(--azure); text-transform: uppercase; display: block; margin-bottom: 14px;
}
.tile h3 { font-family: var(--serif); font-size: 1.22rem; font-weight: 600; margin-bottom: 8px; }
.tile p { font-size: 0.93rem; color: var(--muted); line-height: 1.55; }

/* stacked-skills visual */
.stack { display: flex; flex-direction: column; }
.stack .layer {
  background: var(--card); border: 1px solid var(--line); border-radius: 4px;
  padding: 13px 18px; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.04em;
  color: var(--ink); box-shadow: 0 8px 20px rgba(12, 24, 38, 0.05);
}
.stack .layer + .layer { margin-top: 8px; }
.stack .layer:nth-child(2) { margin-left: 20px; }
.stack .layer:nth-child(3) { margin-left: 40px; }
.stack .layer:nth-child(4) { margin-left: 60px; }
.stack .layer:nth-child(5) { margin-left: 80px; }
.stack .layer .dim { color: var(--muted); }
.stack .base {
  margin-top: 14px; border-left: 3px solid var(--sky);
  background: var(--deep-2); color: #c8d6e2; border-radius: 4px;
  padding: 14px 18px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em;
}
.stack .base strong { color: var(--sky-2); font-weight: 500; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.two-col .lede {
  font-family: var(--serif); font-size: 1.45rem; line-height: 1.4; font-weight: 500;
}
.two-col .lede em { color: var(--azure); }
.prose p + p { margin-top: 1.1em; }
.prose { color: #3c5265; max-width: 36em; }

/* method beats */
.beats { display: grid; gap: 0; border-top: 1px solid var(--line); }
.beat {
  display: grid; grid-template-columns: 64px 230px 1fr; gap: 28px;
  padding: 22px 0; border-bottom: 1px solid var(--line); align-items: baseline;
}
.beat .num { font-family: var(--mono); font-size: 0.82rem; color: var(--azure); }
.beat h3 { font-family: var(--serif); font-size: 1.35rem; font-weight: 600; }
.beat p { color: var(--muted); font-size: 0.98rem; max-width: 40em; }
.after-note { margin-top: 30px; }
.after-note a { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.04em; }

/* evidence labels */
.labels { margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.label-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 22px;
}
.label-card .tag {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; font-weight: 500;
  display: inline-block; margin-bottom: 12px;
}
.tag.v { color: var(--verify); }
.tag.i { color: var(--infer); }
.tag.rec { color: var(--azure); }
.tag.u { color: var(--refute); }
.label-card p { font-size: 0.92rem; color: var(--muted); }

/* services */
.svc-grid { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.sec-head + .svc-grid { margin-top: 0; }
.svc-grid.two { grid-template-columns: 1fr 1fr; }
.svc .svc-price { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--muted); text-transform: uppercase; }
.svc {
  background: var(--card); border: 1px solid var(--line); border-radius: 4px;
  padding: 34px; display: flex; flex-direction: column; gap: 14px;
  text-decoration: none; color: var(--ink);
}
.svc:hover { border-color: var(--sky); }
.svc .svc-id { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em; color: var(--azure); text-transform: uppercase; }
.svc h3 { font-family: var(--serif); font-size: 1.45rem; font-weight: 600; }
.svc p { color: var(--muted); font-size: 0.97rem; }
.svc .svc-go { margin-top: auto; font-family: var(--mono); font-size: 0.78rem; color: var(--azure); letter-spacing: 0.04em; }
.svc.flagship { grid-column: 1 / -1; border-left: 3px solid var(--sky); }

/* case study */
.case { background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 44px 48px; margin-top: 36px; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.case .q {
  font-family: var(--serif); font-size: 1.6rem; line-height: 1.3; font-weight: 500;
}
.case .q em { color: var(--azure); }
.case ul { list-style: none; display: grid; gap: 14px; }
.case li { padding-left: 26px; position: relative; color: #3c5265; font-size: 0.98rem; }
.case li::before {
  content: "→"; position: absolute; left: 0; color: var(--azure); font-family: var(--mono);
}
.case .case-src { margin-top: 22px; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--muted); }

/* deliverables / definition rows */
.deliv { border-top: 1px solid var(--line); }
.drow {
  display: grid; grid-template-columns: 230px 1fr; gap: 28px; padding: 20px 0;
  border-bottom: 1px solid var(--line); align-items: baseline;
}
.drow h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 600; }
.drow p { color: var(--muted); font-size: 0.97rem; }

/* industries: name | pressure | research */
.irow {
  display: grid; grid-template-columns: 220px 1fr 1fr; gap: 28px; padding: 22px 0;
  border-bottom: 1px solid var(--line); align-items: baseline;
}
.irow h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 600; }
.irow p { color: var(--muted); font-size: 0.94rem; }
.irow p strong { color: var(--ink); font-weight: 600; font-size: 0.85rem; display: block; margin-bottom: 4px; font-family: var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }
.icols-head {
  display: grid; grid-template-columns: 220px 1fr 1fr; gap: 28px; padding-bottom: 12px;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted);
}

/* ---------- service detail pages ---------- */
.page-hero { padding: 60px 0 56px; }
.page-hero .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 56px; align-items: center; }
.page-hero h1 { font-size: clamp(2.1rem, 4.2vw, 3.1rem); }
.page-hero .hero-sub { margin-top: 18px; }
.hero-meta {
  background: var(--deep-2); border: 1px solid var(--hair-dark); border-radius: 4px;
  font-family: var(--mono); font-size: 0.76rem; padding: 8px 0;
}
.hero-meta div {
  display: flex; justify-content: space-between; gap: 18px; padding: 10px 18px;
}
.hero-meta div + div { border-top: 1px solid var(--hair-dark); }
.hero-meta .k { color: #5d7690; letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.66rem; }
.hero-meta .v { color: var(--sky-2); text-align: right; }

.svc-detail { padding: 80px 0; }
.svc-detail + .svc-detail { border-top: 1px solid var(--line); }
.svc-detail .head { display: flex; align-items: baseline; gap: 22px; margin-bottom: 30px; flex-wrap: wrap; }
.svc-detail .svc-id { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.18em; color: var(--azure); text-transform: uppercase; }
.svc-detail h2 { font-size: clamp(1.7rem, 3vw, 2.2rem); }
.svc-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.svc-cols h3 { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; font-weight: 500; }
.svc-cols ul { list-style: none; display: grid; gap: 12px; }
.svc-cols li { padding-left: 24px; position: relative; color: #3c5265; font-size: 0.97rem; }
.svc-cols li::before { content: "—"; position: absolute; left: 0; color: var(--sky); }

/* method page steps */
.mstep { padding: 58px 0; }
.mstep + .mstep { border-top: 1px solid var(--line); }
.mstep-grid { display: grid; grid-template-columns: 64px 1fr 1.2fr; gap: 40px; }
.mstep .num { font-family: var(--mono); font-size: 0.85rem; color: var(--azure); }
.mstep h2 { font-size: clamp(1.6rem, 2.8vw, 2.1rem); }
.mstep .mtitle p {
  margin-top: 16px; font-family: var(--serif); font-style: italic; font-size: 1.12rem; color: var(--azure);
}
.mstep .prose { font-size: 1rem; }
.mstep .exhibit {
  margin-top: 26px; background: var(--deep-2); border: 1px solid var(--hair-dark); border-radius: 4px;
  padding: 18px 20px; font-family: var(--mono); font-size: 0.78rem; line-height: 1.8; color: #c8d6e2;
}
.exhibit .ok { color: #4fc48b; }
.exhibit .no { color: #e07a76; }
.exhibit .mid { color: #d9a83f; }
.exhibit .dim { color: #5d7690; }
.exhibit s { text-decoration-color: var(--refute); color: #6e8093; }

/* ---------- CTA bookend ---------- */
.cta { padding: 110px 0; }
.cta h2 { font-size: clamp(2rem, 4vw, 3rem); max-width: 15em; }
.cta .prose { color: #b9c9d6; margin-top: 24px; }
.cta .hero-actions { margin-top: 36px; }
.cta .mail {
  font-family: var(--mono); font-size: 0.85rem; color: var(--sky-2); text-decoration: none;
  border-bottom: 1px solid var(--hair-dark); padding-bottom: 2px;
}
.cta .mail:hover { border-color: var(--sky); }

/* ---------- footer ---------- */
.site-foot { background: var(--deep); border-top: 1px solid var(--hair-dark); }
.site-foot .wrap {
  padding-top: 44px; padding-bottom: 52px;
  display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; flex-wrap: wrap;
}
.site-foot img { height: 18px; width: auto; }
.site-foot .word {
  font-weight: 800; font-size: 1.15rem; letter-spacing: 0.06em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  color: transparent; line-height: 1; display: inline-block;
}
.foot-brand .motto {
  margin-top: 14px; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.26em;
  color: #5d7690; text-transform: uppercase;
}
.foot-links { display: flex; gap: 28px; flex-wrap: wrap; }
.foot-links a {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em;
  color: var(--muted-dark); text-decoration: none;
}
.foot-links a:hover { color: #fff; }
.foot-legal { width: 100%; margin-top: 10px; font-family: var(--mono); font-size: 0.68rem; color: #47607a; letter-spacing: 0.06em; }

/* ---------- diagrams & icons ---------- */
.diagram { margin: 0 0 48px; max-width: 100%; }
/* grid children may hold scrollable diagrams — never let them widen the page */
.two-col > *, .hero-grid > *, .mstep-grid > *, .case > *, .sec-head > *, .wrap > * { min-width: 0; }
.diagram svg, .mdia svg { width: 100%; height: auto; display: block; }
.diagram .dnode, .mdia .dnode { fill: #fff; stroke: var(--line); }
.diagram .dnode-acc, .mdia .dnode-acc { fill: #fff; stroke: var(--azure); stroke-width: 1.5; }
.diagram .dlink, .mdia .dlink { stroke: #c6d6e0; fill: none; }
.diagram .dtext, .mdia .dtext { font-family: var(--mono); font-size: 12px; fill: var(--ink); letter-spacing: 0.04em; }
.diagram .dlabel, .mdia .dlabel { font-family: var(--mono); font-size: 12px; fill: var(--azure); letter-spacing: 0.06em; }
.diagram .dmut, .mdia .dmut { font-family: var(--mono); font-size: 11px; fill: var(--muted); letter-spacing: 0.04em; }
.diagram .dok, .mdia .dok { fill: var(--verify); }
.diagram .dno, .mdia .dno { fill: var(--refute); }
.diagram .ddot, .mdia .ddot { fill: var(--sky); }
.tile .icon {
  width: 26px; height: 26px; stroke: var(--azure); fill: none;
  stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
  display: block; margin-bottom: 14px;
}

/* portrait mobile variant of each diagram — hidden on desktop */
.mdia { display: none; margin: 0 0 44px; }
.mdia svg { width: 100%; height: auto; display: block; max-width: 420px; margin: 0 auto; }

/* ---------- photography ---------- */
.ph { position: relative; border-radius: 4px; overflow: hidden; }
.ph img { display: block; width: 100%; height: 100%; object-fit: cover; filter: grayscale(30%) contrast(1.02) saturate(0.85); }
.ph::after { content: ""; position: absolute; inset: 0; background: var(--deep); opacity: 0.16; mix-blend-mode: multiply; pointer-events: none; }
.photo-split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.photo-split .ph { min-height: 380px; height: 100%; }
.photo-split h3 { font-family: var(--serif); font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; line-height: 1.15; margin-bottom: 16px; }
.photo-split .prose { font-size: 1rem; }

/* full-width photo band under page heroes */
.ph-band, .ph-band img { height: 330px; width: 100%; }
.band-wrap { padding-top: 28px; }
@media (max-width: 700px) { .ph-band, .ph-band img { height: 190px; } }

/* handwritten margin notes — the human hand, used sparingly */
.scribble {
  font-family: "Caveat", cursive; font-size: 1.35rem; line-height: 1.25;
  color: var(--azure); transform: rotate(-2deg); display: inline-block;
}
.dark .scribble { color: var(--sky-2); }
.scribble.red { color: var(--refute); }

/* founder note */
.founder { max-width: 46em; }
.founder blockquote {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem); line-height: 1.4; color: var(--ink);
}
.founder .who { margin-top: 22px; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.founder .who strong { color: var(--azure); font-weight: 500; }

/* ---------- specimen report sheet ---------- */
.sheet {
  background: #fff; border: 1px solid var(--line); border-radius: 4px;
  padding: 54px 58px; max-width: 860px; margin: 0 auto;
  box-shadow: 0 24px 60px rgba(12, 24, 38, 0.08);
}
.sheet .rhead { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; flex-wrap: wrap; border-bottom: 2px solid var(--ink); padding-bottom: 18px; margin-bottom: 8px; }
.sheet .rhead .rtitle { font-family: var(--serif); font-size: 1.6rem; font-weight: 600; }
.sheet .rhead .rspec { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; color: var(--refute); border: 1px solid var(--refute); padding: 4px 10px; border-radius: 3px; }
.sheet .methodline { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; color: var(--muted); padding: 10px 0 26px; border-bottom: 1px solid var(--line); }
.sheet h3 { font-family: var(--serif); font-size: 1.25rem; font-weight: 600; margin: 34px 0 12px; }
.sheet p { font-size: 0.96rem; color: #3c5265; margin-bottom: 12px; }
.sheet .cite { font-family: var(--mono); font-size: 0.72rem; color: var(--azure); }
.mark { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em; padding: 2px 7px; border: 1px solid; border-radius: 3px; white-space: nowrap; }
.mark.v { color: var(--verify); border-color: var(--verify); }
.mark.i { color: var(--infer); border-color: var(--infer); }
.mark.r { color: var(--refute); border-color: var(--refute); }
.mark.rec { color: var(--azure); border-color: var(--azure); }
.sheet table { width: 100%; border-collapse: collapse; font-size: 0.86rem; margin: 8px 0 6px; }
.sheet th { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); text-align: left; padding: 8px 10px 8px 0; border-bottom: 1px solid var(--ink); }
.sheet td { padding: 10px 10px 10px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.sheet .refuted td:nth-child(2) { text-decoration: line-through; color: var(--muted); }
.sheet .insight { border-left: 3px solid var(--sky); background: var(--paper); padding: 16px 20px; margin: 14px 0; font-family: var(--serif); font-style: italic; font-size: 1.08rem; }
.sheet .math { font-family: var(--mono); font-size: 0.78rem; background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 14px 18px; line-height: 1.9; margin: 10px 0; overflow-x: auto; }
.sheet .foot { margin-top: 40px; padding-top: 18px; border-top: 2px solid var(--ink); font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; color: var(--muted); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
@media (max-width: 700px) { .sheet { padding: 28px 22px; } }

/* ---------- inquiry form ---------- */
.iform label { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); display: block; margin: 16px 0 6px; }
.iform input, .iform textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 3px;
  font-size: 0.98rem; font-family: var(--sans); background: #fff; color: var(--ink);
}
.iform textarea { min-height: 110px; resize: vertical; }
.iform input:focus, .iform textarea:focus { outline: 2px solid var(--sky); outline-offset: 1px; border-color: var(--sky); }
.iform button { margin-top: 20px; border: 0; cursor: pointer; }
.iform .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.iform .ok { border-left: 3px solid var(--verify); background: #fff; border-top: 1px solid var(--line); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); border-radius: 0 4px 4px 0; padding: 14px 18px; margin-top: 16px; }
.iform .err { border-left-color: var(--refute); }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 18px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: baseline; gap: 24px;
  font-family: var(--serif); font-size: 1.18rem; font-weight: 600;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--azure); font-size: 1rem; }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 20px; color: var(--muted); max-width: 46em; }

/* ---------- footer subscribe (the monthly ledger note) ---------- */
.foot-sub { display: flex; gap: 16px 28px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding-bottom: 24px; margin-bottom: 30px; border-bottom: 1px solid var(--hair-dark); }
.foot-sub .lbl { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted-dark); max-width: 34em; line-height: 1.7; }
.nform { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.nform input[type=email] { background: var(--deep-2); border: 1px solid var(--hair-dark); color: #e6eef4; border-radius: 3px; padding: 10px 13px; font-size: 0.86rem; font-family: var(--sans); width: 230px; }
.nform input[type=email]:focus { outline: 2px solid var(--sky); outline-offset: 1px; }
.nform button { background: linear-gradient(92deg, var(--sky), #a9dbe6); color: var(--deep); border: 0; border-radius: 3px; padding: 11px 16px; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.06em; font-weight: 600; cursor: pointer; }
.nform button:hover { filter: brightness(1.06); }
.nform .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.nform-note { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.04em; }
.nform-note.ok { color: #4fc48b; }
.nform-note.err { color: #e07b74; }

/* reveal-on-scroll removed — content is always visible; the ledger is the only animated element */

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-grid, .two-col, .case, .svc-cols, .sec-head, .page-hero .wrap, .photo-split { grid-template-columns: 1fr; gap: 40px; }
  .photo-split .ph { min-height: 260px; }
  .sec-head { gap: 16px; }
  .labels, .grid3 { grid-template-columns: 1fr 1fr; }
  .svc-grid { grid-template-columns: 1fr; }
  .beat { grid-template-columns: 60px 1fr; }
  .beat p { grid-column: 2; }
  .mstep-grid { grid-template-columns: 60px 1fr; }
  .mstep .prose { grid-column: 2; }
  .drow { grid-template-columns: 1fr; gap: 8px; }
  .irow { grid-template-columns: 1fr; gap: 14px; }
  .icols-head { display: none; }
  .stack .layer:nth-child(n) { margin-left: 0; }
}
@media (max-width: 700px) {
  .labels, .grid3 { grid-template-columns: 1fr; }
  .svc-grid.two { grid-template-columns: 1fr; }
  /* on small screens the SVG diagrams hide; stacked mobile diagrams show instead */
  .diagram { display: none; }
  .mdia { display: block; }
  .ledger { font-size: 0.72rem; }
  .lrow { grid-template-columns: 44px 1fr auto; gap: 8px; padding: 9px 14px; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .case { padding: 26px 22px; }
  .svc { padding: 26px 22px; }
  .exhibit { overflow-x: auto; }
}
@media (max-width: 640px) {
  .section { padding: 68px 0; }
  .site-head .wrap { flex-direction: column; gap: 18px; }
  .site-nav { gap: 18px; flex-wrap: wrap; justify-content: center; }
  .labels { grid-template-columns: 1fr; }
  .case { padding: 30px; }
  .hero { padding-top: 48px; }
  .proofline .wrap { flex-direction: column; gap: 6px; }
}