/* ====================================================================
   Innomap × Синергия — co-brand landing styles
   Aesthetic: editorial / research journal; cream + deep navy + teal,
   Synergy crimson as the accent (was carmine in the parent brand).
   Lora display + IBM Plex Sans + IBM Plex Mono.
   ==================================================================== */

:root {
  /* colour ----------------------------------------------------------- */
  --bg: #f5f2eb;
  --bg-2: #efebe0;
  --bg-3: #e9e4d4;
  --bg-elev: #ffffff;
  --ink: #0e1316;
  --ink-2: #3c4148;
  --ink-3: #6b6f76;
  --line: #e0dcd0;
  --line-2: #cdc7b6;
  --navy: #0b1f3a;
  --navy-2: #122e55;
  --navy-3: #1f4072;
  --teal: #0b6157;
  --teal-2: #14b8a6;
  --carmine: #ed131c;
  --carmine-2: #ff3b44;
  --gold: #b08c34;
  --shadow-1: 0 6px 24px rgba(11, 31, 58, 0.08);
  --shadow-2: 0 18px 50px rgba(11, 31, 58, 0.12);

  /* type ------------------------------------------------------------- */
  --font-display: 'Lora', 'Times New Roman', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Menlo', 'Monaco', monospace;

  /* layout ----------------------------------------------------------- */
  --max: 1280px;
  --max-prose: 720px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-pad-y: clamp(4.5rem, 9vw, 8.5rem);
  --radius: 3px;
}

/* base ================================================================ */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
svg { display: block; max-width: 100%; height: auto; }

h1, h2, h3 { overflow-wrap: break-word; hyphens: auto; }
button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}
a { color: inherit; text-decoration: none; }

::selection { background: var(--navy); color: var(--bg); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--navy);
  color: var(--bg);
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* header ============================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 242, 235, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(245, 242, 235, 0.95);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.9rem var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 2rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--navy);
  letter-spacing: -0.005em;
}
.brand-mark { display: inline-block; }
.brand-mark circle { fill: var(--navy); }
.brand-mark circle.dim { fill: var(--teal); opacity: 0.55; }
.brand-mark line { stroke: var(--navy); stroke-width: 1; opacity: 0.55; }
.brand-mark line.dim { stroke: var(--teal); opacity: 0.45; }
.brand-name { line-height: 1; }

.nav {
  display: flex;
  gap: 1.85rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.nav a {
  position: relative;
  padding: 0.35rem 0;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--navy);
  transition: right 0.25s ease;
}
.nav a:hover { color: var(--navy); }
.nav a:hover::after { right: 0; }

.btn-burger {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  position: relative;
}
.btn-burger span {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 1.5px;
  background: var(--navy);
}
.btn-burger span:nth-child(1) { top: 12px; }
.btn-burger span:nth-child(2) { top: 17px; }
.btn-burger span:nth-child(3) { top: 22px; }

/* buttons ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.7rem 1.05rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease,
    border-color 0.18s ease, transform 0.18s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--navy);
  color: var(--bg);
  border: 1px solid var(--navy);
}
.btn-primary:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.btn-secondary {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--navy);
}
.btn-secondary:hover {
  background: var(--navy);
  color: var(--bg);
}
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--line-2);
  padding: 0.55rem 0.95rem;
}
.btn-ghost:hover {
  border-color: var(--navy);
  background: var(--bg-2);
}
.btn-lg { padding: 0.95rem 1.4rem; font-size: 0.85rem; }
.btn-arrow {
  display: inline-block;
  transform: translateY(-0.03em);
  transition: transform 0.18s ease;
}
.btn:hover .btn-arrow { transform: translate(0.25em, -0.03em); }

/* sections / typography ============================================== */
.section {
  padding-top: var(--section-pad-y);
  padding-bottom: var(--section-pad-y);
  position: relative;
}
.section + .section { border-top: 1px solid var(--line); }

.section-head {
  max-width: var(--max);
  margin: 0 auto 3.5rem;
  padding: 0 var(--gutter);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  margin: 0 0 1.5rem;
}
.eyebrow .num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0;
  color: var(--carmine);
  text-transform: none;
}
.eyebrow .dash { color: var(--line-2); }
.eyebrow-mark { color: var(--teal); transform: translateY(-1px); }
.eyebrow-hero { color: var(--ink-2); }

.section-h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.07;
  letter-spacing: -0.015em;
  color: var(--navy);
  margin: 0;
  max-width: 18ch;
}
.section-h2 em {
  font-style: italic;
  font-weight: 500;
  color: var(--teal);
}
.section-lede {
  margin: 1.5rem 0 0;
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 56ch;
}

/* hero ================================================================ */
.hero {
  position: relative;
  min-height: 86vh;
  padding: 6rem var(--gutter) 5rem;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(
      1100px 700px at 80% 25%,
      rgba(11, 97, 87, 0.07) 0%,
      transparent 60%
    ),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      to right,
      rgba(11, 31, 58, 0.045) 1px,
      transparent 1px
    );
  background-size: 96px 100%;
  opacity: 0.5;
  z-index: -1;
}
.hero-graph {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-graph svg {
  width: 100%;
  height: 100%;
}
.hero-graph-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    var(--bg) 0%,
    rgba(245, 242, 235, 0.85) 35%,
    rgba(245, 242, 235, 0) 70%
  );
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 1rem;
}
.hero-h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.6rem, 6.4vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin: 0 0 1.6rem;
  max-width: 18ch;
}
.hero-h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--teal);
}
.hero-lede {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 56ch;
  margin: 0 0 2.2rem;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 4rem;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 1.6rem 0 0;
  border-top: 1px solid var(--line);
  max-width: 760px;
}
.hero-stats > div { padding: 0.4rem 1.5rem 0.4rem 0; }
.hero-stats > div + div {
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}
.hero-stats dt {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 0.25rem;
}
.hero-stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* hero graph nodes/edges */
.hero-graph .g-edge {
  stroke: var(--navy);
  stroke-width: 0.6;
  opacity: 0.18;
}
.hero-graph .g-node {
  fill: var(--teal);
  opacity: 0.55;
}
.hero-graph .g-node.hub { fill: var(--navy); opacity: 0.8; }
.hero-graph .g-node.alt { fill: var(--carmine); opacity: 0.7; }

/* problem ============================================================= */
.section-problem { background: var(--bg); }
.cards-3 {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}
.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.75rem 1.85rem;
  position: relative;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.card:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
}
.card-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--carmine);
  margin: 0 0 1.6rem;
}
.card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.45rem;
  line-height: 1.15;
  color: var(--navy);
  margin: 0 0 0.85rem;
}
.card p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.97rem;
  line-height: 1.6;
}

/* capabilities ======================================================== */
.section-capabilities { background: var(--bg-2); }
.capabilities-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.cap {
  background: var(--bg-elev);
  padding: 2.2rem 2rem 2.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.cap-icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  margin-bottom: 0.5rem;
}
.cap-icon svg { stroke: var(--navy); stroke-width: 1.2; fill: none; }
.cap-icon svg .hot { fill: var(--carmine); stroke: none; }
.cap-icon svg circle:not(.hot) { stroke: var(--teal); }
.cap h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.55rem;
  line-height: 1.15;
  color: var(--navy);
  margin: 0;
}
.cap h3 .amp {
  display: inline-block;
  color: var(--ink-3);
  font-style: italic;
  font-size: 1rem;
  font-weight: 400;
  vertical-align: 0.18em;
  margin-left: 0.35rem;
}
.cap > p {
  margin: 0;
  color: var(--ink-2);
  line-height: 1.6;
}
.cap-points {
  list-style: none;
  padding: 0;
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.cap-points li {
  padding-left: 1.1rem;
  position: relative;
}
.cap-points li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--teal);
}

/* how it works ======================================================== */
.section-how { background: var(--bg); }
.how-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.how-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.how-steps li {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
  display: block;
}
.how-steps li:first-child { padding-top: 0; }
.how-steps li:last-child { border-bottom: 0; }
.step-kick {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1;
}
.step-num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--carmine);
  line-height: 1;
}
.step-sep {
  display: inline-block;
  width: 1.4rem;
  height: 1px;
  background: var(--line-2);
}
.step-time {
  color: var(--ink-2);
}
.step-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.55rem;
  line-height: 1.18;
  color: var(--navy);
  margin: 0 0 0.65rem;
  letter-spacing: -0.005em;
  overflow-wrap: break-word;
  hyphens: auto;
}
.step-desc {
  margin: 0;
  color: var(--ink-2);
  line-height: 1.6;
}
.how-graph {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  aspect-ratio: 7 / 8;
  position: sticky;
  top: 90px;
}
.how-graph svg { width: 100%; height: 100%; }
.how-graph .g-edge {
  stroke: var(--navy);
  stroke-width: 0.7;
  opacity: 0.2;
}
.how-graph .g-edge.hot { stroke: var(--carmine); opacity: 0.55; stroke-width: 1; }
.how-graph .g-node { fill: var(--navy); opacity: 0.75; }
.how-graph .g-node.teal { fill: var(--teal); }
.how-graph .g-node.alt { fill: var(--carmine); }
.how-graph .g-node.hub { fill: var(--navy); opacity: 1; }

/* audiences =========================================================== */
.section-audiences { background: var(--bg-2); }
.audiences {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 22rem 1fr;
  gap: 3rem;
  align-items: start;
}
.audience-tabs {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line-2);
}
.audience-tab {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1rem;
  align-items: baseline;
  text-align: left;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line-2);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.2rem;
  color: var(--ink-2);
  transition: color 0.18s ease, padding-left 0.18s ease;
}
.audience-tab:hover { color: var(--navy); padding-left: 0.25rem; }
.audience-tab.is-active { color: var(--navy); }
.audience-tab.is-active .t-num { color: var(--carmine); }
.t-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-weight: 500;
}
.audience-panel {
  display: none;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem 2.2rem 2.4rem;
}
.audience-panel.is-active { display: block; }
.audience-panel h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.8rem;
  color: var(--navy);
  margin: 0 0 0.85rem;
  line-height: 1.15;
}
.audience-lede {
  margin: 0 0 1.5rem;
  color: var(--ink-2);
  font-size: 1.05rem;
  line-height: 1.55;
}
.audience-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
}
.audience-points li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--ink-2);
  line-height: 1.55;
}
.audience-points li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 0.05em;
  color: var(--teal);
  font-size: 0.8em;
}
.audience-points strong {
  color: var(--navy);
  font-weight: 600;
}

/* demos =============================================================== */
.section-demo { background: var(--bg); }
.demos {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.demo {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.demo-chrome {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
.chrome-dots {
  display: inline-flex;
  gap: 0.4rem;
}
.chrome-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-2);
}
.chrome-dots i:nth-child(1) { background: #e0b1a6; }
.chrome-dots i:nth-child(2) { background: #e0c7a6; }
.chrome-dots i:nth-child(3) { background: #a6c4a8; }
.chrome-title {
  color: var(--ink-2);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chrome-meta { color: var(--ink-3); }
.chrome-meta.is-live { color: var(--teal); }

/* — demo 1: graph */
.demo-body-graph {
  display: grid;
  grid-template-columns: 14rem 1fr;
  min-height: 360px;
}
.demo-side {
  border-right: 1px solid var(--line);
  padding: 1.4rem 1.2rem;
  background: linear-gradient(180deg, var(--bg-elev) 0%, var(--bg) 100%);
  font-size: 0.85rem;
}
.demo-side .side-h {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin: 0 0 0.6rem;
}
.demo-side .side-h + .side-h { margin-top: 1.2rem; }
.demo-side ul {
  list-style: none;
  padding: 0;
  margin: 0 0 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.demo-side li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--ink-2);
}
.demo-side em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
}
.demo-side .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.5rem;
}
.demo-side .dot.c1 { background: var(--navy); }
.demo-side .dot.c2 { background: var(--teal); }
.demo-side .dot.c3 { background: var(--carmine); }
.demo-side .dot.c4 { background: var(--gold); }
.side-tag {
  margin: 0 0 0.8rem;
  padding: 0.45rem 0.65rem;
  background: var(--bg-2);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--navy);
}
.side-actions li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--navy);
  cursor: default;
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--line);
}
.side-actions li:last-child { border-bottom: 0; }
.demo-canvas {
  position: relative;
  background:
    linear-gradient(rgba(11, 31, 58, 0.04) 1px, transparent 1px) 0 0 / 100% 32px,
    linear-gradient(90deg, rgba(11, 31, 58, 0.04) 1px, transparent 1px) 0 0 / 32px 100%,
    var(--bg-elev);
  overflow: hidden;
}
.demo-canvas svg { width: 100%; height: 100%; min-height: 360px; display: block; }
.demo-canvas .g-edge { stroke: var(--navy); stroke-width: 0.7; opacity: 0.22; }
.demo-canvas .g-edge.hot { stroke: var(--carmine); opacity: 0.7; stroke-width: 1.2; }
.demo-canvas .g-node { fill: var(--navy); opacity: 0.85; }
.demo-canvas .g-node.teal { fill: var(--teal); }
.demo-canvas .g-node.carmine { fill: var(--carmine); }
.demo-canvas .g-node.gold { fill: var(--gold); }
.demo-canvas .g-node.hub { stroke: var(--bg-elev); stroke-width: 2; }
.demo-canvas .g-label {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--ink-3);
}
.demo-overlay {
  position: absolute;
  left: 1.2rem;
  bottom: 1.2rem;
}
.overlay-pill {
  display: inline-block;
  background: var(--navy);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius);
  margin: 0;
}

/* — demo 2: skills heatmap */
.demo-body-skills {
  padding: 1.6rem 1.6rem 1.4rem;
}
.skills-grid {
  display: grid;
  grid-template-columns: 7rem repeat(6, minmax(0, 1fr));
  gap: 4px;
  align-items: stretch;
}
.sg-corner { background: transparent; }
.sg-col {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  padding: 0.35rem 0;
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.sg-row {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--ink);
  padding: 0.55rem 0.6rem 0.55rem 0;
  align-self: center;
  text-align: right;
}
.sg-cell {
  height: 44px;
  border-radius: 2px;
  background: var(--bg-2);
  transition: transform 0.18s ease;
}
.sg-cell[data-level='0'] { background: var(--bg-3); }
.sg-cell[data-level='1'] { background: #d6cfb8; }
.sg-cell[data-level='2'] { background: #8db5ad; }
.sg-cell[data-level='3'] { background: #3f8b80; }
.sg-cell[data-level='4'] { background: #0b6157; }
.sg-cell:hover { transform: scale(1.05); }
.skills-legend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.lg-cell {
  display: inline-block;
  width: 18px;
  height: 12px;
  border-radius: 2px;
  background: var(--bg-2);
}
.lg-cell[data-level='0'] { background: var(--bg-3); }
.lg-cell[data-level='1'] { background: #d6cfb8; }
.lg-cell[data-level='2'] { background: #8db5ad; }
.lg-cell[data-level='3'] { background: #3f8b80; }
.lg-cell[data-level='4'] { background: #0b6157; }
.lg-lbl { margin-left: 0.5rem; color: var(--ink-3); }

/* — demo 3: leaks */
.demo-body-leaks {
  padding: 1.6rem 1.6rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.leaks-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.leaks-summary > div {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}
.ls-n {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 2rem;
  color: var(--navy);
  line-height: 1;
}
.ls-l {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.leaks-timeline {
  position: relative;
  height: 56px;
  margin: 0.6rem 0;
}
.lt-axis {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: var(--line);
}
.lt-mark {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid var(--bg-elev);
}
.lt-mark.m-high { background: var(--carmine); box-shadow: 0 0 0 2px rgba(237, 19, 28, 0.18); }
.lt-mark.m-med { background: var(--gold); }
.lt-mark.m-low { background: var(--teal); opacity: 0.55; }
.lt-lbl-left, .lt-lbl-right {
  position: absolute;
  bottom: -1.1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-3);
  margin: 0;
}
.lt-lbl-left { left: 0; }
.lt-lbl-right { right: 0; }

.leaks-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}
.leaks-list li {
  display: grid;
  grid-template-columns: 6.2rem 4rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.93rem;
}
.leaks-list li:last-child { border-bottom: 0; }
.ll-sev {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  border-radius: 2px;
  display: inline-block;
  width: fit-content;
}
.ll-high .ll-sev { background: rgba(237, 19, 28, 0.12); color: var(--carmine); }
.ll-med .ll-sev { background: rgba(176, 140, 52, 0.15); color: var(--gold); }
.ll-low .ll-sev { background: rgba(11, 97, 87, 0.12); color: var(--teal); }
.ll-time {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-3);
}
.ll-msg { color: var(--ink); }

/* security ============================================================ */
.section-security {
  background: var(--navy);
  color: var(--bg);
}
.section-security .eyebrow { color: rgba(245, 242, 235, 0.7); }
.section-security .eyebrow .num { color: var(--teal-2); }
.section-security .eyebrow .dash { color: rgba(245, 242, 235, 0.25); }
.section-security .section-h2 {
  color: var(--bg);
}
.section-security .section-h2 em { color: var(--teal-2); }
.security-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(245, 242, 235, 0.12);
  border: 1px solid rgba(245, 242, 235, 0.12);
}
.security-grid article {
  padding: 2.2rem 2rem;
  background: var(--navy);
}
.sec-i {
  margin: 0 0 1.2rem;
  font-size: 1.5rem;
  color: var(--teal-2);
  line-height: 1;
}
.security-grid h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.4rem;
  color: var(--bg);
  margin: 0 0 0.6rem;
}
.security-grid p {
  color: rgba(245, 242, 235, 0.75);
  margin: 0;
  line-height: 1.55;
}

/* request form ======================================================== */
.section-request { background: var(--bg-2); }
.lead-form {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem 1.6rem;
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field-wide { grid-column: 1 / -1; }
.field-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.field-opt {
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink-3);
  font-weight: 400;
  margin-left: 0.35rem;
}
.field input,
.field textarea {
  font: inherit;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg-elev);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 0.85rem 0.95rem;
  resize: vertical;
  transition: border-color 0.18s ease, background 0.18s ease;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--navy);
  background: var(--bg-elev);
}
.field-error {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--carmine);
  min-height: 1em;
}
.field.has-error input,
.field.has-error textarea { border-color: var(--carmine); }

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}
.form-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  max-width: 36rem;
}
.form-status {
  grid-column: 1 / -1;
  margin: 0.6rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--teal);
  min-height: 1.3em;
}
.form-status.is-error { color: var(--carmine); }
.lead-form.is-submitted {
  display: block;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  text-align: center;
}
.lead-form.is-submitted > * { display: none; }
.lead-form.is-submitted .form-status {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--navy);
  letter-spacing: 0;
}
.lead-form.is-submitted .form-status::before {
  content: '✓';
  display: block;
  font-size: 2.4rem;
  color: var(--teal);
  margin-bottom: 0.6rem;
}

/* footer ============================================================== */
.site-footer {
  background: var(--navy);
  color: rgba(245, 242, 235, 0.85);
  padding: 4rem var(--gutter) 1.6rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
}
.brand-lg {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.45rem;
  color: var(--bg);
  margin: 0 0 0.7rem;
}
.brand-lg svg circle { fill: var(--bg); }
.brand-lg svg line { stroke: var(--bg); stroke-width: 1; opacity: 0.55; }
.footer-tag {
  margin: 0;
  max-width: 38ch;
  color: rgba(245, 242, 235, 0.65);
  line-height: 1.55;
}
.footer-h {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(245, 242, 235, 0.5);
  margin: 0 0 1rem;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.footer-col a {
  color: rgba(245, 242, 235, 0.85);
  transition: color 0.18s ease;
}
.footer-col a:hover { color: var(--teal-2); }
.footer-bottom {
  max-width: var(--max);
  margin: 3rem auto 0;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(245, 242, 235, 0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: rgba(245, 242, 235, 0.5);
  letter-spacing: 0.04em;
}
.footer-bottom p { margin: 0; }

/* modal =============================================================== */
.modal {
  border: 0;
  padding: 0;
  max-width: 32rem;
  width: calc(100% - 2rem);
  background: var(--bg-elev);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
}
.modal::backdrop {
  background: rgba(11, 31, 58, 0.55);
  backdrop-filter: blur(2px);
}
.modal-form {
  padding: 2rem 2rem 2rem;
  position: relative;
  margin: 0;
}
.modal-close {
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  width: 32px;
  height: 32px;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--ink-3);
}
.modal h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.65rem;
  color: var(--navy);
  margin: 0 0 0.8rem;
}
.modal p {
  margin: 0 0 1.4rem;
  color: var(--ink-2);
  line-height: 1.55;
}
.modal-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

/* responsive ========================================================== */
@media (max-width: 1024px) {
  .nav { display: none; }
  .btn-burger { display: inline-grid; }
  .header-inner { grid-template-columns: auto 1fr auto auto; gap: 0.8rem; }
  .header-inner .btn-ghost { display: none; }
  .audiences { grid-template-columns: 1fr; }
  .audience-tabs {
    flex-direction: row;
    flex-wrap: wrap;
    border-top: 0;
    border-bottom: 1px solid var(--line-2);
    padding-bottom: 0;
  }
  .audience-tab {
    border-bottom: 0;
    padding: 0.5rem 1rem 0.5rem 0;
    grid-template-columns: auto auto;
    gap: 0.5rem;
  }
  .audience-tab.is-active { border-bottom: 2px solid var(--carmine); }
  .audience-tab:hover { padding-left: 0; }
  .how-grid { grid-template-columns: 1fr; }
  .how-graph { position: static; aspect-ratio: 4 / 3; max-width: 480px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .cards-3 { grid-template-columns: 1fr; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 4.5rem; padding-bottom: 4rem; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-stats > div + div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 1rem;
    margin-top: 0.4rem;
  }
  .hero-graph-fade {
    background: linear-gradient(180deg, rgba(245, 242, 235, 0.95) 0%, rgba(245, 242, 235, 0.6) 100%);
  }
  .demo-body-graph { grid-template-columns: 1fr; }
  .demo-side { border-right: 0; border-bottom: 1px solid var(--line); }
  .demo-canvas svg { min-height: 260px; }
  .skills-grid {
    grid-template-columns: 5.5rem repeat(6, minmax(0, 1fr));
  }
  .sg-col { font-size: 0.62rem; }
  .lead-form { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .leaks-list li { grid-template-columns: 1fr; gap: 0.25rem; }
}

/* nav mobile open */
body.is-menu-open .nav {
  display: flex;
  position: fixed;
  inset: 72px 0 0 0;
  flex-direction: column;
  background: var(--bg);
  padding: 2rem var(--gutter);
  gap: 1.2rem;
  font-size: 1rem;
  z-index: 40;
}
body.is-menu-open .nav a { padding: 0.6rem 0; border-bottom: 1px solid var(--line); }

/* ====================================================================
   proof strip ("Доказанная экономика")
   ==================================================================== */
.section-proof { background: var(--bg); padding-top: clamp(3.5rem, 7vw, 6rem); padding-bottom: clamp(3.5rem, 7vw, 6rem); }
.section-head-proof .section-h2 { max-width: 22ch; }
.proof-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
}
.proof {
  padding: 1.9rem 1.5rem 1.8rem;
  border-right: 1px solid var(--line);
  position: relative;
  display: flex;
  flex-direction: column;
}
.proof:last-child { border-right: 0; }
.proof::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 1px;
  background: var(--carmine);
}
.proof-n {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 2.6vw, 2.2rem);
  line-height: 1.05;
  color: var(--navy);
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}
.proof-l {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.proof-s {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.92rem;
  line-height: 1.55;
}
.proof-s strong { color: var(--navy); font-weight: 600; }

/* ====================================================================
   use cases ("Что это решает")
   ==================================================================== */
.section-uses { background: var(--bg-2); }
.uses {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}
.use {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.8rem 1.9rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.use:hover { border-color: var(--line-2); transform: translateY(-2px); }
.use-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
}
.use-tag .t-num {
  display: inline-grid;
  place-items: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--navy);
  color: var(--bg);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 0.92rem;
  letter-spacing: 0;
  text-transform: none;
}
.use h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.45rem;
  line-height: 1.15;
  color: var(--navy);
  margin: 0;
  letter-spacing: -0.005em;
}
.use h3 em { font-style: italic; color: var(--teal); }
.use-body {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.97rem;
  line-height: 1.6;
}
.use-stats {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem 1rem;
}
.use-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.us-n {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  color: var(--navy);
  line-height: 1.05;
  letter-spacing: -0.005em;
}
.us-l {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* outcome callout on capability cards =============================== */
.cap-outcome {
  margin: -0.2rem 0 0;
  padding: 0.6rem 0 0.8rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--carmine);
  letter-spacing: -0.005em;
}

/* responsive overrides for new sections ============================ */
@media (max-width: 1024px) {
  .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof:nth-child(2) { border-right: 0; }
  .proof:nth-child(1), .proof:nth-child(2) { border-bottom: 1px solid var(--line); }
  .uses { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .proof-grid { grid-template-columns: 1fr; }
  .proof { border-right: 0; border-bottom: 1px solid var(--line); }
  .proof:last-child { border-bottom: 0; }
  .use-stats { grid-template-columns: 1fr; }
}

/* ====================================================================
   hero trust strip
   ==================================================================== */
.hero-trust {
  margin: 1.6rem 0 0;
  padding-top: 1.4rem;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  max-width: 760px;
}
.hero-trust .trust-sep { color: var(--line-2); }
.hero-trust span:not(.trust-sep) { color: var(--ink-2); }

/* ====================================================================
   "how we deploy" — honesty disclaimer
   ==================================================================== */
.honesty {
  max-width: var(--max);
  width: calc(100% - 2 * var(--gutter));
  margin: 3rem auto 0;
  padding: 1.8rem 2rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-left: 3px solid var(--carmine);
  border-radius: var(--radius);
}
.honesty-h {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--carmine);
}
.honesty ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.8rem;
}
.honesty li {
  position: relative;
  padding-left: 1.2rem;
  color: var(--ink-2);
  line-height: 1.55;
  font-size: 0.95rem;
}
.honesty li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--carmine);
}
.honesty li strong { color: var(--navy); font-weight: 600; }

@media (max-width: 760px) {
  .honesty ul { grid-template-columns: 1fr; }
  .hero-trust { font-size: 0.66rem; gap: 0.4rem 0.6rem; }
}

/* ====================================================================
   Comprehensive mobile pass
   ==================================================================== */

/* tablet portrait — drop dense grids earlier ======================== */
@media (max-width: 960px) {
  .cards-3 { grid-template-columns: 1fr; }
  .capabilities-grid { grid-template-columns: 1fr; }
  .leaks-summary { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.6rem; }
}

/* shared phone tweaks =============================================== */
@media (max-width: 760px) {
  :root { --section-pad-y: clamp(3.25rem, 11vw, 5rem); }
  html { scroll-padding-top: 60px; }

  /* header — tighten ------------------------------------------------ */
  .site-header { backdrop-filter: saturate(140%) blur(12px); }
  .header-inner { padding: 0.7rem var(--gutter); gap: 0.6rem; }
  .brand { font-size: 1.1rem; }
  .brand-mark { width: 24px; height: 24px; }

  /* hero ------------------------------------------------------------ */
  .hero {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
  .hero-h1 {
    font-size: clamp(2.1rem, 9vw, 3rem);
    line-height: 1.05;
    max-width: 22ch;
  }
  .hero-lede { font-size: 1rem; }
  .hero-cta { gap: 0.6rem; margin-bottom: 2.5rem; }
  .hero-cta .btn { flex: 1 1 calc(50% - 0.3rem); justify-content: center; }
  .hero-stats { padding-top: 1.25rem; }
  .hero-stats dt { font-size: 1.15rem; }
  .hero-stats dd { font-size: 0.68rem; }
  .hero-trust {
    margin-top: 1.25rem;
    padding-top: 1rem;
    line-height: 1.6;
  }
  .hero-graph-fade {
    background: linear-gradient(
      180deg,
      rgba(245, 242, 235, 0.92) 0%,
      rgba(245, 242, 235, 0.55) 60%,
      rgba(245, 242, 235, 0.78) 100%
    );
  }

  /* section heads — reduce excessive top margin --------------------- */
  .section-head { margin-bottom: 2rem; }
  .section-h2 {
    font-size: clamp(1.6rem, 6.4vw, 2.2rem);
    line-height: 1.1;
    max-width: 22ch;
  }
  .section-lede { font-size: 0.98rem; }
  .eyebrow { font-size: 0.66rem; letter-spacing: 0.14em; margin-bottom: 1rem; }
  .eyebrow .num { font-size: 0.9rem; }

  /* uses cards ------------------------------------------------------ */
  .use { padding: 1.6rem 1.3rem; }
  .use h3 { font-size: 1.25rem; }
  .use-tag .t-num { width: 1.5rem; height: 1.5rem; font-size: 0.85rem; }

  /* capability cards ------------------------------------------------ */
  .cap { padding: 1.8rem 1.4rem 2rem; }
  .cap h3 { font-size: 1.35rem; }
  .cap-outcome { font-size: 0.96rem; }
  .cap-icon { width: 48px; height: 48px; }

  /* how steps ------------------------------------------------------- */
  .how-steps li { padding: 1.4rem 0; }
  .step-num { font-size: 1.2rem; }
  .step-sep { width: 1rem; }
  .step-title { font-size: 1.3rem; }
  .how-graph { padding: 1rem; max-width: 100%; aspect-ratio: 5 / 4; }

  /* audience tabs — switch to horizontal scroll --------------------- */
  .audience-tabs {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
    border-top: 0;
    border-bottom: 1px solid var(--line-2);
    margin: 0 calc(-1 * var(--gutter));
    padding: 0 var(--gutter);
    scroll-snap-type: x proximity;
    gap: 0;
  }
  .audience-tabs::-webkit-scrollbar { display: none; }
  .audience-tab {
    flex: 0 0 auto;
    grid-template-columns: auto 1fr;
    gap: 0.5rem;
    padding: 0.9rem 1.1rem;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    font-size: 0.98rem;
    scroll-snap-align: start;
    min-height: 44px;
    white-space: nowrap;
  }
  .audience-tab:hover { padding-left: 1.1rem; }
  .audience-tab.is-active { border-bottom-color: var(--carmine); padding-left: 1.1rem; }
  .audience-panel { padding: 1.6rem 1.4rem 1.8rem; }
  .audience-panel h3 { font-size: 1.45rem; }

  /* demos ----------------------------------------------------------- */
  .demo-side { padding: 1rem 1.1rem; }
  .demo-canvas { background-size: 100% 28px, 28px 100%; }
  .demo-canvas svg { min-height: 240px; }
  .demo-body-skills { padding: 1.1rem 1.1rem 1.1rem; }
  .demo-body-leaks { padding: 1.1rem 1.1rem 1.2rem; gap: 1rem; }
  .overlay-pill { font-size: 0.66rem; padding: 0.4rem 0.6rem; max-width: calc(100% - 1.6rem); }
  .demo-overlay { left: 0.8rem; bottom: 0.8rem; right: 0.8rem; }
  .demo-chrome { font-size: 0.68rem; padding: 0.55rem 0.8rem; gap: 0.6rem; }

  /* skills heatmap — horizontal scroll for many cols ---------------- */
  .demo-body-skills { overflow-x: auto; }
  .skills-grid {
    grid-template-columns: 6rem repeat(6, minmax(50px, 1fr));
    min-width: 28rem;
  }
  .skills-legend { flex-wrap: wrap; }
  .lg-lbl { width: 100%; margin-left: 0; }

  /* leaks summary ---------------------------------------------------- */
  .leaks-summary { gap: 0.5rem; }
  .leaks-summary > div { padding: 0.85rem 0.8rem; }
  .ls-n { font-size: 1.5rem; }
  .ls-l { font-size: 0.65rem; }
  .ll-sev { font-size: 0.64rem; }

  /* security panel -------------------------------------------------- */
  .security-grid article { padding: 1.8rem 1.4rem; }
  .security-grid h3 { font-size: 1.25rem; }

  /* request form ---------------------------------------------------- */
  .field input, .field textarea { padding: 0.85rem 0.9rem; font-size: 1rem; }
  .form-actions { gap: 1rem; }
  .btn-lg { width: 100%; padding: 1rem 1.2rem; }

  /* proof strip — give each card more breathing room ---------------- */
  .proof { padding: 1.4rem 1.2rem 1.4rem; }
  .proof-n { font-size: 1.5rem; }
  .proof-s { font-size: 0.88rem; }

  /* honesty --------------------------------------------------------- */
  .honesty { padding: 1.4rem 1.2rem; }
  .honesty li { font-size: 0.9rem; }

  /* footer ---------------------------------------------------------- */
  .site-footer { padding-top: 3rem; padding-bottom: 1.2rem; }
  .footer-bottom { font-size: 0.68rem; }
}

/* phones — small portrait ============================================ */
@media (max-width: 480px) {
  .hero-cta .btn { flex: 1 1 100%; }
  .leaks-summary { grid-template-columns: 1fr; }
  .leaks-summary > div { display: flex; align-items: baseline; gap: 0.8rem; padding: 0.7rem 0.9rem; }
  .ls-n { font-size: 1.4rem; }
  .ls-l { margin-top: 0; }
  .hero-h1 { font-size: clamp(1.85rem, 10.5vw, 2.4rem); }
  .section-h2 { font-size: clamp(1.45rem, 7.5vw, 1.9rem); }
  .hero-trust { letter-spacing: 0.05em; font-size: 0.62rem; }
  .demo-chrome .chrome-meta { display: none; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* lock body scroll when mobile menu is open ========================== */
body.is-menu-open { overflow: hidden; }

/* ====================================================================
   Synergy co-brand additions
   ==================================================================== */
.brand-cobrand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--ink);
}
.brand-cobrand .cb-x {
  font-family: var(--font-display);
  font-size: 1.1em;
  color: var(--ink-3);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.brand-cobrand .cb-syn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.cb-syn-mark {
  width: 22px;
  height: 22px;
  display: inline-block;
  border-radius: 4px;
  background: var(--carmine);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  line-height: 22px;
  text-align: center;
  font-style: italic;
}
.eyebrow-cobrand .eyebrow-mark { color: var(--carmine); }

.cobrand-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.55rem 1rem;
  background: var(--navy);
  color: #f5f2eb;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.cobrand-banner .cb-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--carmine);
  display: inline-block;
}
.cobrand-banner em {
  font-style: italic;
  color: #d6cfb9;
  font-family: var(--font-display);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.92rem;
}

@media (max-width: 720px) {
  .brand-cobrand .cb-syn span:not(.cb-syn-mark) { display: none; }
  .cobrand-banner { font-size: 0.7rem; padding: 0.45rem 0.8rem; }
}