/* ============================================================
   CONTENTIVIST — Design System
   Structure First. Scale Follows.
   Built directly from the Brand Guidelines v1.0 tokens.
   ============================================================ */

:root {
  /* Colour */
  --c-void: #0E0F11;          /* default page ground · 55% */
  --c-ink: #14161A;           /* raised panels, cards, footers · 20% */
  --c-paper: #F2EFE8;         /* light mode ground, documents · 20% */
  --c-signal: #E1502A;        /* accent — one per view · 5% */
  --c-signal-deep: #B4341A;   /* hover / pressed on signal */
  --c-ash: #8A857D;           /* muted text on dark */
  --c-stone: #5A5650;         /* muted text on paper */
  --c-hairline: rgba(242, 239, 232, 0.14);
  --c-hairline-ink: rgba(20, 22, 26, 0.14);

  /* Type */
  --f-display: "Syne", system-ui, sans-serif;
  --f-text: "Archivo", system-ui, sans-serif;
  --t-display: 600 clamp(40px, 5vw, 80px)/1.0 var(--f-display);
  --t-h1: 600 clamp(28px, 3.4vw, 42px)/1.1 var(--f-display);
  --t-h2: 600 clamp(20px, 2.2vw, 26px)/1.2 var(--f-display);
  --t-h3: 600 17px/1.35 var(--f-text);
  --t-body: 400 16px/1.65 var(--f-text);
  --t-small: 400 13.5px/1.6 var(--f-text);
  --t-label: 500 10.5px/1 var(--f-text);
  --t-figure: 800 clamp(40px, 5vw, 64px)/1 var(--f-display);
  --tracking-display: -0.02em;
  --tracking-label: 0.20em;

  /* Space — 8px base */
  --sp-1: 4px;  --sp-2: 8px;   --sp-3: 12px;  --sp-4: 16px;  --sp-5: 24px;
  --sp-6: 32px; --sp-7: 48px;  --sp-8: 64px;  --sp-9: 96px;  --sp-10: 128px;

  /* Structure */
  --max-w: 1280px;
  --gutter: 24px;
  --page-x: 64px;             /* 24px below 768px */
  --radius: 0;                /* never change this */
  --border: 1px solid var(--c-hairline);

  /* Motion */
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 120ms;
  --dur-base: 220ms;
  --dur-slow: 420ms;
  --dur-hover: 220ms;
  --dur-fill: 320ms;
  --dur-line: 900ms;
  --stagger: 90ms;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font: var(--t-body);
  color: var(--c-paper);
  background: var(--c-void);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
ul { list-style: none; padding: 0; }

::selection { background: var(--c-signal); color: var(--c-paper); }

/* ---------- Focus (accessibility floor: WCAG 2.1 AA) ---------- */
:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--sp-4); top: -60px;
  z-index: 200;
  background: var(--c-signal); color: var(--c-paper);
  padding: var(--sp-3) var(--sp-4);
  font: var(--t-label); letter-spacing: var(--tracking-label); text-transform: uppercase;
  transition: top var(--dur-base) var(--ease);
}
.skip-link:focus { top: var(--sp-4); }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--page-x);
}
@media (max-width: 767px) { .container { padding-inline: var(--gutter); } }

.section { padding-block: clamp(64px, 9vw, 128px); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }

/* Grounds */
.ground-void  { background: var(--c-void);  color: var(--c-paper); }
.ground-ink   { background: var(--c-ink);   color: var(--c-paper); }
.ground-paper { background: var(--c-paper); color: var(--c-ink); }
.ground-signal{ background: var(--c-signal);color: var(--c-ink); }

/* ---------- Typography ---------- */
.t-display { font: var(--t-display); letter-spacing: var(--tracking-display); }
.t-h1 { font: var(--t-h1); letter-spacing: -0.025em; }
.t-h2 { font: var(--t-h2); letter-spacing: var(--tracking-display); }
.t-h3 { font: var(--t-h3); }
.t-body { font: var(--t-body); }
.t-lead { font: 400 clamp(17px, 1.5vw, 20px)/1.6 var(--f-text); }
.t-small { font: var(--t-small); }
.measure { max-width: 68ch; }
.balance { text-wrap: balance; }

.label {
  font: var(--t-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-ash);
}
.ground-paper .label { color: var(--c-stone); }
.label--signal { color: var(--c-signal); }

.muted { color: var(--c-ash); }
.ground-paper .muted { color: var(--c-stone); }

/* ---------- The Ramp (logotype weight progression) ---------- */
/* Applied to ONE short headline per surface. Never on body copy. */
.ramp { font-family: var(--f-display); text-transform: uppercase; letter-spacing: var(--tracking-display); line-height: 1; }
.ramp b { font-weight: 800; color: var(--c-signal); }

/* ---------- Signal rule (opens a section) ---------- */
.rule-signal { width: 48px; height: 3px; background: var(--c-signal); border: 0; margin: 0 0 var(--sp-5); }
.hairline { border: 0; border-top: 1px solid var(--c-hairline); margin: 0; }
.ground-paper .hairline { border-top-color: var(--c-hairline-ink); }

/* ---------- Index numerals ---------- */
.index-num {
  font-family: var(--f-display);
  font-weight: 700;
  color: var(--c-signal);
  letter-spacing: var(--tracking-display);
  line-height: 1;
}
.index-num .of { color: var(--c-ash); font-weight: 600; }

/* ---------- Data figures ---------- */
.figure {
  font: var(--t-figure);
  letter-spacing: var(--tracking-display);
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
  max-width: 100%;
  overflow-wrap: break-word;
}
.figure .unit { font-size: 45%; color: var(--c-signal); margin-left: 2px; }
/* Word / phrase highlights (e.g. "System", "Tamil Nadu") — smaller than the
   numeric data-figure so long words never overflow their column. */
.figure--word {
  display: block;
  font: 600 clamp(20px, 2.4vw, 30px)/1.12 var(--f-display);
  letter-spacing: var(--tracking-display);
  max-width: 100%;
  overflow-wrap: break-word;
}
.figure--word .unit { color: var(--c-signal); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 15px var(--sp-5);
  font: 500 14px/1 var(--f-text);
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: background var(--dur-base) var(--ease), color var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), transform var(--dur-fast) var(--ease);
  min-height: 44px;               /* tap target */
}
.btn:active { transform: translateY(1px); }
.btn__arrow { display: inline-block; transition: transform var(--dur-hover) var(--ease); }
.btn:hover .btn__arrow, .btn:focus-visible .btn__arrow { transform: translateX(7px); }

/* 01 — Primary: lift, deepen, subtle ring */
.btn--primary {
  background: var(--c-signal); color: var(--c-ink);
  transition: transform var(--dur-hover) var(--ease-out-expo),
              background var(--dur-hover) linear,
              color var(--dur-hover) linear,
              box-shadow var(--dur-hover) linear;
}
.btn--primary:hover, .btn--primary:focus-visible {
  transform: translateY(-2px);
  background: var(--c-signal-deep); color: var(--c-paper);
  box-shadow: 0 0 0 1px rgba(225, 80, 42, 0.35);
}

/* 02 — Secondary: Signal floods up from the bottom edge (pseudo-element, no extra markup) */
.btn--secondary { position: relative; overflow: hidden; isolation: isolate; border: 1px solid var(--c-hairline); color: inherit; }
.btn--secondary::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--c-signal);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform var(--dur-fill) var(--ease-out-expo);
}
.btn--secondary:hover, .btn--secondary:focus-visible { color: var(--c-ink); border-color: var(--c-signal); }
.btn--secondary:hover::before, .btn--secondary:focus-visible::before { transform: scaleY(1); }
.btn--secondary:hover .index-num, .btn--secondary:focus-visible .index-num { color: var(--c-ink); }
.ground-paper .btn--secondary { border-color: var(--c-hairline-ink); }

.btn--ghost { padding-inline: 0; color: var(--c-signal); }
.btn--ghost:hover { color: var(--c-signal-deep); }
.ground-paper .btn--ghost { color: var(--c-signal-deep); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 64px;
  background: rgba(14, 15, 17, 0.93);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-hairline);
}
.site-header__inner {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-6);
}

/* Logotype — the weight ramp is fixed */
.logo {
  font-family: var(--f-display);
  text-transform: uppercase;
  letter-spacing: var(--tracking-display);
  line-height: 0.9;
  white-space: nowrap;
  font-size: 22px;
  color: var(--c-paper);
}
.logo .s1 { font-weight: 400; }
.logo .s2 { font-weight: 500; }
.logo .s3 { font-weight: 600; }
.logo .s4 { font-weight: 700; }
.logo .s5 { font-weight: 800; color: var(--c-signal); }

.nav { display: flex; align-items: center; gap: var(--sp-6); }
.nav__links { display: flex; align-items: center; gap: var(--sp-6); }
/* 04 — Nav link: hairline draws from the left, label nudges up */
.nav__link {
  font: 500 14px/1 var(--f-text);
  color: var(--c-ash);
  padding-block: var(--sp-2);
  position: relative;
  display: inline-block;
}
.nav__link .lbl { display: inline-block; transition: transform 260ms var(--ease-out-expo), color 200ms linear; }
.nav__link .bar {
  position: absolute; left: 0; right: 0; bottom: -4px; height: 1px;
  background: var(--c-signal);
  transform: scaleX(0); transform-origin: left;
  transition: transform 260ms var(--ease-out-expo);
}
.nav__link:hover .lbl, .nav__link:focus-visible .lbl { transform: translateY(-2px); color: var(--c-paper); }
.nav__link:hover .bar, .nav__link:focus-visible .bar { transform: scaleX(1); }
.nav__link[aria-current="page"] .lbl { color: var(--c-paper); }
.nav__link[aria-current="page"] .bar { transform: scaleX(1); }

.nav__toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; }
.nav__toggle span { display: block; width: 22px; height: 2px; background: var(--c-paper); position: relative; transition: background var(--dur-fast) var(--ease); }
.nav__toggle span::before, .nav__toggle span::after { content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--c-paper); transition: transform var(--dur-base) var(--ease), top var(--dur-base) var(--ease); }
.nav__toggle span::before { top: -7px; }
.nav__toggle span::after { top: 7px; }

@media (max-width: 900px) {
  .nav__toggle { display: inline-flex; }
  /* Solid header on mobile: backdrop-filter would establish a containing block
     and trap the fixed overlay inside the 64px header. */
  .site-header { background: var(--c-void); backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav__links {
    position: fixed; inset: 64px 0 0 0; top: 64px; right: 0; bottom: 0; left: 0;
    background: var(--c-ink);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: var(--sp-6) var(--gutter);
    transform: translateY(-8px);
    opacity: 0; pointer-events: none;
    transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
    overflow-y: auto;
  }
  body.nav-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
  .nav__links .nav__link { font-size: 24px; font-family: var(--f-display); color: var(--c-paper); width: 100%; padding: var(--sp-4) 0; border-bottom: 1px solid var(--c-hairline); }
  .nav__links .nav__link .bar { display: none; }
  .nav__links .nav__link[aria-current="page"] .lbl { color: var(--c-signal); }
  .nav__cta { margin-top: var(--sp-5); }
  body.nav-open .nav__toggle span { background: transparent; }
  body.nav-open .nav__toggle span::before { top: 0; transform: rotate(45deg); }
  body.nav-open .nav__toggle span::after { top: 0; transform: rotate(-45deg); }
}

/* ---------- Hero (Signal Wipe entrance + revenue-engine diagram) ---------- */
.hero { padding-block: clamp(56px, 9vw, 132px); position: relative; }
.hero__sub { max-width: 46ch; color: var(--c-ash); margin-bottom: var(--sp-7); }

/* Two-column layout: content | diagram */
.hero-grid__inner { display: grid; grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr); gap: clamp(26px, 3.4vw, 52px); align-items: center; }
@media (max-width: 900px) { .hero-grid__inner { grid-template-columns: 1fr; gap: clamp(40px, 7vw, 56px); } }

/* --- Entrance keyframes --- */
@keyframes signalClipIn { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 -2% 0 0); } }
@keyframes signalEdge   { 0% { transform: translateX(0); opacity: 1; } 92% { opacity: 1; } 100% { transform: translateX(100%); opacity: 0; } }
@keyframes heroFadeUp   { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes heroFade     { from { opacity: 0; } to { opacity: 1; } }
@keyframes heroSweepY   { from { transform: scaleY(0); } to { transform: scaleY(1); } }
@keyframes heroSweepX   { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* --- Headline: Signal Wipe (line by line) --- */
.hero-headline {
  margin: 0 0 var(--sp-6); display: grid; gap: 2px;
  font-family: var(--f-display); font-weight: 500;   /* Syne, lighter hero weight */
  font-size: clamp(28px, 4vw, 58px); line-height: 1.1; letter-spacing: -0.025em;
  color: var(--c-paper);
}
.hero-line { display: block; position: relative; overflow: hidden; padding-bottom: 0.08em; }
.hero-line__text { display: block; animation: signalClipIn 780ms cubic-bezier(0.22, 1, 0.36, 1) var(--d) both; }
.hero-line__edge {
  position: absolute; left: 0; top: 6%; bottom: 10%; width: 100%; pointer-events: none;
  animation: signalEdge 780ms cubic-bezier(0.22, 1, 0.36, 1) var(--d) both;
}
.hero-line__edge i { position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c-signal); display: block; will-change: transform; }
@media (min-width: 768px) { .hero-line__text { white-space: nowrap; } }
.hero-line:nth-child(1) { --d: 160ms; }
.hero-line:nth-child(2) { --d: 280ms; }
.hero-line:nth-child(3) { --d: 400ms; }
.hero-line:nth-child(4) { --d: 520ms; }

/* --- Supporting hero elements --- */
.hero__eyebrow { display: block; margin-bottom: var(--sp-5); animation: heroFadeUp 560ms var(--ease-out-expo) 40ms both; }
.hero__lede    { animation: heroFadeUp 740ms var(--ease-out-expo) 900ms both; }
.hero__actions { animation: heroFadeUp 700ms var(--ease-out-expo) 1040ms both; }

/* eyebrow ✦ hover (kept) */
.star { display: inline-block; transition: transform 420ms var(--ease-out-expo); }
.hero__eyebrow:hover .star { transform: rotate(90deg) scale(1.25); }

/* --- Right column: revenue-engine flow diagram (plain divs, no SVG/icons) --- */
.hero-diagram__label { display: block; margin-bottom: var(--sp-4); animation: heroFade 600ms linear 1020ms both; }
.hero-diagram {
  border: 1px solid var(--c-hairline); background: var(--c-void);
  padding: clamp(20px, 2.4vw, 32px);
  display: flex; flex-direction: column; align-items: center;
}
.flow-node {
  width: var(--w); box-sizing: border-box; text-align: center;
  background: var(--c-ink); border: 1px solid rgba(242, 239, 232, 0.16); color: var(--c-ash);
  font: 400 12.5px/1 var(--f-text); letter-spacing: 0.06em; text-transform: uppercase;
  padding: 12px 16px; border-radius: 0;
  animation: heroFadeUp 600ms var(--ease-out-expo) both;
}
.flow-node--signal {
  border-color: rgba(225, 80, 42, 0.75); background: rgba(225, 80, 42, 0.09);
  color: var(--c-paper); font-weight: 500; box-shadow: 0 0 30px rgba(225, 80, 42, 0.22);
}
.flow-connector { width: 1px; height: 16px; background: var(--c-hairline); transform-origin: top; animation: heroSweepY 260ms var(--ease-out-expo) both; }
.flow-rule { width: 100%; height: 2px; background: var(--c-signal); margin-top: 14px; transform-origin: left; animation: heroSweepX 700ms var(--ease-out-expo) 1660ms both; }
.hero-diagram__caption { margin-top: var(--sp-4); color: var(--c-ash); animation: heroFade 800ms linear 1780ms both; }

/* ---------- Marquee / ticker ---------- */
.marquee { overflow: hidden; border-block: 1px solid var(--c-hairline); padding-block: var(--sp-4); }
.marquee__track { display: inline-flex; white-space: nowrap; gap: var(--sp-6); will-change: transform; animation: marquee 42s linear infinite; }
.marquee__track span { font: var(--t-label); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--c-ash); }
.marquee__track .dot { color: var(--c-signal); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }

/* ---------- Stat grid (1px gaps, not margins) ---------- */
.grid-hairline { display: grid; gap: 1px; background: var(--c-hairline); border: 1px solid var(--c-hairline); }
/* min-width:0 lets tracks shrink so a wide child can't overflow the page */
.grid-hairline > * { background: var(--c-void); padding: var(--sp-6); min-width: 0; }
.ground-ink .grid-hairline > * { background: var(--c-ink); }
.stat-grid { grid-template-columns: repeat(4, 1fr); }
.stat__figure { display: block; margin-bottom: var(--sp-3); }
.stat__desc { color: var(--c-ash); font: var(--t-small); }
@media (max-width: 900px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stat-grid { grid-template-columns: 1fr; } }

/* ---------- The Ledger (ruled lists — replaces icon sets) ---------- */
.ledger { border-top: 1px solid var(--c-hairline); }
.ground-paper .ledger { border-top-color: var(--c-hairline-ink); }
.ledger__item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--sp-5);
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--c-hairline);
  align-items: start;
}
.ground-paper .ledger__item { border-bottom-color: var(--c-hairline-ink); }
.ledger__num { font-family: var(--f-display); font-weight: 700; color: var(--c-signal); font-size: 15px; letter-spacing: var(--tracking-display); padding-top: 4px; }
.ledger__body h3 { font: var(--t-h3); margin-bottom: var(--sp-2); }
.ledger__body p { color: var(--c-ash); max-width: 68ch; }
.ground-paper .ledger__body p { color: var(--c-stone); }
.ledger__item--link { transition: background var(--dur-base) var(--ease); }
a.ledger__item:hover { background: rgba(242,239,232,0.03); }

/* Simple ruled list (checklist-style, no bullets) */
.ruled { border-top: 1px solid var(--c-hairline); }
.ground-paper .ruled { border-top-color: var(--c-hairline-ink); }
.ruled li { padding: var(--sp-3) 0 var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--c-hairline); position: relative; color: var(--c-paper); }
.ground-paper .ruled li { border-bottom-color: var(--c-hairline-ink); color: var(--c-ink); }
.ruled li::before { content: ""; position: absolute; left: 0; top: 50%; width: 6px; height: 1px; background: var(--c-signal); }

/* ---------- Section head ---------- */
.section-head { margin-bottom: var(--sp-8); max-width: 72ch; }
.section-head .label { display: block; margin-bottom: var(--sp-4); }
.section-head h2 { margin-bottom: var(--sp-4); }
.section-head p { color: var(--c-ash); }
.ground-paper .section-head p { color: var(--c-stone); }

/* Two-column section layout (index label + content) */
.split { display: grid; grid-template-columns: 200px 1fr; gap: var(--sp-8); }
.split__aside .index-num { font-size: 22px; display: block; margin-bottom: var(--sp-3); }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: var(--sp-5); } }

/* ---------- Panels / cards ---------- */
.panel { border: 1px solid var(--c-hairline); padding: clamp(24px, 4vw, 48px); }
.ground-paper .panel { border-color: var(--c-hairline-ink); }

/* Method cards */
.method-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--c-hairline); border: 1px solid var(--c-hairline); }
.method-grid > * { background: var(--c-void); padding: clamp(24px, 3vw, 40px); min-width: 0; }
.ground-ink .method-grid > * { background: var(--c-ink); }
.method__num { font-family: var(--f-display); font-weight: 700; color: var(--c-signal); font-size: 15px; margin-bottom: var(--sp-4); letter-spacing: var(--tracking-display); }
.method__title { font: var(--t-h2); margin-bottom: var(--sp-3); }
.method__lead { font: 400 clamp(16px,1.4vw,18px)/1.5 var(--f-text); margin-bottom: var(--sp-3); }
.method__body { color: var(--c-ash); }
@media (max-width: 720px) { .method-grid { grid-template-columns: 1fr; } }

/* ---------- Service sections (alternating grounds) ---------- */
.service { scroll-margin-top: 88px; }
.service__head { display: flex; align-items: baseline; gap: var(--sp-5); margin-bottom: var(--sp-5); flex-wrap: wrap; }
.service__num { font-family: var(--f-display); font-weight: 700; font-size: clamp(28px,4vw,44px); color: var(--c-signal); letter-spacing: var(--tracking-display); line-height: 1; }
.service__grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-8); margin-top: var(--sp-7); }
@media (max-width: 900px) { .service__grid { grid-template-columns: 1fr; gap: var(--sp-6); } }

/* ---------- Case studies ---------- */
.case-index { border-top: 1px solid var(--c-hairline); }
.case-row {
  display: grid;
  grid-template-columns: 48px 1.4fr 1fr auto;
  gap: var(--sp-5);
  align-items: center;
  padding: var(--sp-6) 0;
  border-bottom: 1px solid var(--c-hairline);
  transition: background var(--dur-base) var(--ease);
}
.case-row:hover { background: rgba(242,239,232,0.03); }
.case-row__num { font-family: var(--f-display); font-weight: 700; color: var(--c-signal); font-size: 15px; }
.case-row__name { font: var(--t-h3); font-family: var(--f-display); font-weight: 600; }
.case-row__meta { color: var(--c-ash); font: var(--t-small); }
.case-row__result { color: var(--c-paper); font: var(--t-small); text-align: right; max-width: 34ch; }
@media (max-width: 820px) {
  .case-row { grid-template-columns: 40px 1fr; gap: var(--sp-2) var(--sp-4); }
  .case-row__result { text-align: left; grid-column: 2; }
  .case-row__meta { grid-column: 2; }
}

.case-detail { scroll-margin-top: 88px; }
.case-detail__figures { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--c-hairline-ink); border: 1px solid var(--c-hairline-ink); margin-block: var(--sp-6); }
.case-detail__figures > * { background: var(--c-paper); padding: var(--sp-5); min-width: 0; }
.case-detail__figures .figure { font-size: clamp(28px, 3.4vw, 44px); }
.case-detail__figures .stat__desc { color: var(--c-stone); }
@media (max-width: 820px) { .case-detail__figures { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 460px) { .case-detail__figures { grid-template-columns: 1fr; } }

/* Data table (case metrics) */
.data-table { width: 100%; border-collapse: collapse; font: var(--t-small); }
.data-table th, .data-table td { text-align: left; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--c-hairline); }
.ground-paper .data-table th, .ground-paper .data-table td { border-bottom-color: var(--c-hairline-ink); }
.data-table th { font: var(--t-label); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--c-ash); }
.ground-paper .data-table th { color: var(--c-stone); }
.data-table td .sig { color: var(--c-signal); font-family: var(--f-display); font-weight: 700; }
.table-scroll { overflow-x: auto; }

/* ---------- Client logos (monochrome, tuned to the ground) ---------- */
/* Per-logo heights are set inline so each wordmark reads at a consistent
   optical size despite different proportions. Reserve a min box for rhythm. */
.client-logo { min-height: 56px; margin-bottom: var(--sp-4); display: flex; align-items: center; }
.client-logo img {
  width: auto; max-width: 280px; object-fit: contain; object-position: left center;
  /* dark grounds: render logo white */
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.ground-paper .client-logo img {
  /* light ground: render logo ink */
  filter: brightness(0);
  opacity: 0.82;
}

/* "Selected clients" strip */
.client-strip {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: var(--sp-5) clamp(24px, 4vw, 44px);
  margin-top: var(--sp-5);
}
.client-strip img {
  width: auto; max-width: 170px; object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.5;
  transition: opacity var(--dur-base) var(--ease);
}
.client-strip img:hover { opacity: 1; }
.ground-paper .client-strip img { filter: brightness(0); opacity: 0.55; }

/* ---------- Founder note (on Paper) ---------- */
.founder { display: grid; grid-template-columns: 1fr 1.4fr; gap: var(--sp-8); align-items: start; }
.founder__sig { font-family: var(--f-display); font-weight: 600; }
@media (max-width: 820px) { .founder { grid-template-columns: 1fr; gap: var(--sp-5); } }

/* ---------- FAQ accordion ---------- */
.faq-group { margin-bottom: var(--sp-8); }
.faq-group > .label { display: block; margin-bottom: var(--sp-4); }
.faq { border-top: 1px solid var(--c-hairline); }
.faq__item { border-bottom: 1px solid var(--c-hairline); }
.faq__q { width: 100%; text-align: left; display: flex; justify-content: space-between; align-items: center; gap: var(--sp-5); padding: var(--sp-5) 0; font: var(--t-h3); font-family: var(--f-display); font-weight: 600; }
.faq__q:hover { color: var(--c-signal); }
.faq__sign { flex: none; width: 16px; height: 16px; position: relative; }
.faq__sign::before, .faq__sign::after { content: ""; position: absolute; background: var(--c-signal); transition: transform var(--dur-base) var(--ease); }
.faq__sign::before { left: 0; right: 0; top: 50%; height: 2px; transform: translateY(-50%); }
.faq__sign::after { top: 0; bottom: 0; left: 50%; width: 2px; transform: translateX(-50%); }
.faq__item[open] .faq__sign::after { transform: translateX(-50%) scaleY(0); }
.faq__a { padding: 0 0 var(--sp-5); color: var(--c-ash); max-width: 74ch; }
.faq__q::-webkit-details-marker { display: none; }
summary.faq__q { list-style: none; cursor: pointer; }
summary.faq__q::marker { content: ""; }

/* ---------- Forms (hairline-underline inputs, no boxes) ---------- */
.form { max-width: 640px; }
.field { margin-bottom: var(--sp-6); }
.field label { display: block; font: var(--t-label); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--c-ash); margin-bottom: var(--sp-3); }
.field .req { color: var(--c-signal); }
.field input, .field textarea, .field select {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--c-hairline);
  color: var(--c-paper);
  font: var(--t-body);
  padding: var(--sp-3) 0;
  border-radius: 0;
  transition: border-color var(--dur-base) var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-bottom-color: var(--c-signal); }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--c-ash) 50%), linear-gradient(135deg, var(--c-ash) 50%, transparent 50%); background-position: right 4px center, right 0 center; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 24px; }
.field select option { background: var(--c-ink); color: var(--c-paper); }
.form__confirm { display: none; }
.form__confirm.is-visible { display: block; }
.form.is-submitted .form__body { display: none; }

/* ---------- CTA band ---------- */
.cta-band { text-align: center; }
.cta-band h2 { max-width: 24ch; margin: 0 auto var(--sp-6); }
.cta-band .btn-row { justify-content: center; }
.cta-band__note { margin-top: var(--sp-5); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--c-hairline); padding-block: var(--sp-9) var(--sp-6); }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--sp-7); margin-bottom: var(--sp-8); }
.footer__brand .logo { font-size: 26px; margin-bottom: var(--sp-4); }
.footer__brand .strapline { font: var(--t-label); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--c-ash); }
.footer__col h4 { font: var(--t-label); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--c-ash); margin-bottom: var(--sp-4); }
.footer__col li { margin-bottom: var(--sp-3); }
.footer__col a { color: var(--c-ash); font-size: 14px; transition: color var(--dur-base) var(--ease); }
.footer__col a:hover { color: var(--c-paper); }
.footer__bottom { display: flex; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap; padding-top: var(--sp-6); border-top: 1px solid var(--c-hairline); }
.footer__bottom p { font: var(--t-small); color: var(--c-ash); }
@media (max-width: 820px) { .footer__top { grid-template-columns: 1fr 1fr; gap: var(--sp-6); } }
@media (max-width: 480px) { .footer__top { grid-template-columns: 1fr; } }

/* ---------- Page hero (interior) ---------- */
.page-hero { padding-block: clamp(56px, 8vw, 112px) clamp(32px,4vw,56px); }
.page-hero .label { display: block; margin-bottom: var(--sp-5); }
.page-hero h1 { max-width: 20ch; margin-bottom: var(--sp-5); }
.page-hero p { color: var(--c-ash); max-width: 64ch; }

/* ---------- Utilities ---------- */
.stack > * + * { margin-top: var(--sp-4); }
.stack-6 > * + * { margin-top: var(--sp-6); }
.mt-5 { margin-top: var(--sp-5); }
.mt-6 { margin-top: var(--sp-6); }
.mt-7 { margin-top: var(--sp-7); }
.mb-4 { margin-bottom: var(--sp-4); }
.text-center { text-align: center; }
.eyebrow { display: block; margin-bottom: var(--sp-4); }
.prose p { margin-bottom: var(--sp-4); color: inherit; }
.prose p:last-child { margin-bottom: 0; }
.prose h3 { font: var(--t-h2); margin: var(--sp-7) 0 var(--sp-4); }

/* ---------- Motion: below-fold scroll reveal ---------- */
/* fade-up (blocks) */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 760ms var(--ease-out-expo), transform 760ms var(--ease-out-expo); }
.reveal.is-in { opacity: 1; transform: none; }
/* line-mask (headings) — Option A, reserved for below the fold; the wipe is hero-only */
@keyframes lineRise { from { transform: translateY(106%); } to { transform: translateY(0); } }
.reveal-line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.reveal-line > * { display: block; transform: translateY(106%); }
.reveal-line.is-in > * { animation: lineRise 900ms cubic-bezier(0.16, 1, 0.3, 1) var(--d, 0ms) both; }

/* ---------- Reduced motion: everything visible & static ---------- */
@media (prefers-reduced-motion: reduce) {
  .hero-line__text,
  .hero-anim,
  .reveal, .reveal.is-in,
  .reveal-line > *, .reveal-line.is-in > * {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
  .hero-line__edge { animation: none !important; opacity: 0 !important; }
  .btn, .btn--primary, .btn__arrow,
  .btn--secondary, .btn--secondary::before,
  .nav__link .bar, .nav__link .lbl,
  .chip .star, .star {
    transition: none !important;
  }
  .btn--secondary::before { transform: scaleY(0) !important; }
}