/* =====================================================================
   ИНДУСТРИАЛЬНАЯ РОБОТОТЕХНИКА — indrobo.tech
   Design system: "Signal & Graphite"
   ---------------------------------------------------------------------
   Palette
     --ink     #0F151B  deep blue-graphite (dark sections / text on light)
     --panel   #161E26  raised panel on dark
     --paper   #ECEFF2  cool light background
     --card    #FFFFFF  cards on light
     --steel   #6B7886  muted labels / secondary text
     --signal  #FF5A1F  signal orange accent (grounded in industrial robot arms)
   Type
     Display : "Saira Semi Condensed" — technical condensed grotesque
     Body    : "Manrope" — geometric humanist sans
     Mono    : "JetBrains Mono" — data labels, dimension callouts, eyebrows
   Signature
     CAD dimension-line annotations + instrument HUD over a blueprint grid.
   ===================================================================== */

/* ----------------------------- Tokens ----------------------------- */
:root {
  --ink: #0F151B;
  --ink-2: #131B23;
  --panel: #161E26;
  --panel-2: #1C262F;
  --paper: #ECEFF2;
  --paper-2: #E3E8ED;
  --card: #FFFFFF;
  --steel: #6B7886;
  --steel-d: #515E6B;       /* darker steel for text on light */
  --signal: #FF5A1F;
  --signal-d: #E64A12;
  --signal-soft: rgba(255, 90, 31, 0.14);

  --line-dark: rgba(255, 255, 255, 0.10);
  --line-dark-strong: rgba(255, 255, 255, 0.18);
  --line-light: rgba(15, 21, 27, 0.12);
  --line-light-strong: rgba(15, 21, 27, 0.20);

  --on-dark: #EDF1F4;
  --on-dark-dim: #9AA7B3;
  --on-light: #0F151B;
  --on-light-dim: #515E6B;

  --font-display: "Saira Semi Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;

  --container: 1200px;
  --gutter: clamp(1.1rem, 4vw, 2.5rem);
  --radius: 14px;
  --radius-sm: 8px;

  --space-section: clamp(4.5rem, 9vw, 8rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-card: 0 1px 0 rgba(15,21,27,0.04), 0 18px 40px -28px rgba(15,21,27,0.45);
  --shadow-pop: 0 24px 60px -24px rgba(15,21,27,0.55);

  color-scheme: dark light;
}

/* ----------------------------- Reset ------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--on-light);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, iframe { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
input, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; padding: 0; }
:focus-visible {
  outline: 2.5px solid var(--signal);
  outline-offset: 3px;
  border-radius: 3px;
}

/* --------------------------- Utilities ---------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.skip-link {
  position: fixed;
  top: 0.6rem;
  left: 50%;
  transform: translate(-50%, -160%);
  z-index: 200;
  background: var(--ink);
  color: var(--on-dark);
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  transition: transform 0.2s var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ----------------------------- Buttons ---------------------------- */
.btn {
  --btn-pad-y: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: var(--btn-pad-y) 1.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
              border-color 0.2s var(--ease), transform 0.12s var(--ease),
              box-shadow 0.2s var(--ease);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--signal);
  color: #fff;
  box-shadow: 0 8px 22px -10px rgba(255, 90, 31, 0.65);
}
.btn-primary:hover { background: var(--signal-d); box-shadow: 0 10px 26px -10px rgba(255, 90, 31, 0.8); }
.btn-ghost {
  background: transparent;
  color: var(--on-dark);
  border-color: var(--line-dark-strong);
}
.btn-ghost:hover { border-color: var(--signal); color: #fff; background: rgba(255,255,255,0.04); }
.btn-lg { --btn-pad-y: 1.05rem; padding-inline: 2.1rem; font-size: 1.1rem; }
.btn-block { width: 100%; }

/* ----------------------------- Header ----------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 21, 27, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-dark);
  color: var(--on-dark);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}
.brand { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--on-dark); }
.brand-mark { color: var(--on-dark); flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: 0.16em;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--on-dark-dim);
  margin-top: 0.28rem;
}

.primary-nav { display: flex; align-items: center; gap: 0.35rem; }
.primary-nav a {
  position: relative;
  padding: 0.55rem 0.85rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--on-dark-dim);
  border-radius: var(--radius-sm);
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.primary-nav a:hover { color: var(--on-dark); }
.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0.85rem; right: 0.85rem; bottom: 0.34rem;
  height: 2px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s var(--ease);
}
.primary-nav a:hover::after { transform: scaleX(1); }
.primary-nav .nav-cta {
  margin-left: 0.4rem;
  color: #fff;
  background: var(--signal);
  font-family: var(--font-display);
}
.primary-nav .nav-cta::after { display: none; }
.primary-nav .nav-cta:hover { background: var(--signal-d); color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-dark);
}
.nav-toggle-bar {
  display: block;
  width: 20px; height: 2px;
  margin-inline: auto;
  background: var(--on-dark);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ------------------------------ Hero ------------------------------ */
.hero {
  position: relative;
  background: radial-gradient(120% 90% at 80% -10%, #1a2530 0%, var(--ink) 55%) , var(--ink);
  color: var(--on-dark);
  overflow: hidden;
  isolation: isolate;
}
.hero-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.85), rgba(0,0,0,0.15) 70%, transparent);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.85), rgba(0,0,0,0.15) 70%, transparent);
}
.hero-scan {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, transparent, var(--signal-soft) 50%, transparent);
  height: 160px;
  opacity: 0.5;
  animation: scan 7s var(--ease) infinite;
}
@keyframes scan {
  0% { transform: translateY(-160px); opacity: 0; }
  15% { opacity: 0.55; }
  85% { opacity: 0.55; }
  100% { transform: translateY(105vh); opacity: 0; }
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 6vw, 4rem);
  padding-block: clamp(3.5rem, 9vw, 7rem) clamp(3.5rem, 8vw, 6rem);
  align-items: center;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1.4rem;
}
.eyebrow-tick { color: var(--on-dark-dim); }
.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.05rem, 8.5vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  text-wrap: balance;
  overflow-wrap: break-word;
}
.hero-lead {
  max-width: 44ch;
  margin-top: 1.5rem;
  font-size: clamp(1.02rem, 2.3vw, 1.22rem);
  color: var(--on-dark-dim);
  text-wrap: pretty;
}
.hero-copy { min-width: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2.1rem; }
.hero-actions .btn { flex: 1 1 auto; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: clamp(1.2rem, 5vw, 3rem);
  margin-top: 2.8rem;
  padding-top: 1.8rem;
  border-top: 1px solid var(--line-dark);
  width: fit-content;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-dark-dim);
}
.stat-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1;
  margin-top: 0.35rem;
  font-variant-numeric: tabular-nums;
}
.stat-unit {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--signal);
  margin-left: 0.25rem;
}

/* Hero figure — instrument readout housing the Lottie */
.hero-figure { position: relative; min-width: 0; }
.readout {
  position: relative;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0)) ,
    var(--panel);
  box-shadow: var(--shadow-pop);
  overflow: hidden;
}
.readout-head, .readout-foot {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.7rem;
  padding: 0.7rem 1rem;
  font-family: var(--font-mono);
  font-size: clamp(0.6rem, 1.6vw, 0.68rem);
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}
.readout-head { border-bottom: 1px solid var(--line-dark); }
.readout-foot { border-top: 1px solid var(--line-dark); justify-content: space-between; }
.readout-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-soft);
  flex: none;
}
.readout-id { color: var(--on-dark); }
.readout-status { margin-left: auto; color: var(--signal); }
.readout-ok { color: var(--signal); }
.readout-stage {
  position: relative;
  aspect-ratio: 5 / 4;
  display: grid;
  place-items: center;
  background:
    radial-gradient(60% 60% at 50% 45%, rgba(255,90,31,0.10), transparent 70%),
    repeating-linear-gradient(0deg, var(--line-dark) 0 1px, transparent 1px 38px),
    repeating-linear-gradient(90deg, var(--line-dark) 0 1px, transparent 1px 38px);
}
/* Интерактивная робо-рука (SVG + обратная кинематика) */
.readout-stage { cursor: crosshair; }
.hero-arm { width: 100%; height: 100%; display: block; touch-action: none; }
.arm-floor { stroke: var(--line-dark-strong); stroke-width: 1.5; stroke-dasharray: 2 7; }
.arm-base { fill: #828d98; }
.arm-link { stroke: #aeb7c0; stroke-width: 15; stroke-linecap: round; }
.arm-tendon { stroke: var(--signal); stroke-width: 2.5; stroke-linecap: round; opacity: 0.85; }
.arm-joint { fill: var(--panel); stroke: #aeb7c0; stroke-width: 3; }
.arm-dot { fill: var(--signal); }
.arm-grip { stroke: #cfd5db; stroke-width: 6; stroke-linecap: round; }
.arm-cube { fill: rgba(255, 90, 31, 0.16); stroke: var(--signal); stroke-width: 2.5; }

/* CAD dimension callouts (signature) */
.dim { position: absolute; pointer-events: none; font-family: var(--font-mono); font-size: 0.64rem; color: var(--signal); letter-spacing: 0.06em; }
.dim-line { display: block; background: var(--signal); opacity: 0.8; }
.dim-text { display: inline-block; padding: 0.1rem 0.3rem; background: rgba(15,21,27,0.7); border-radius: 3px; }
.dim-top { top: 14px; left: 12%; right: 12%; }
.dim-top .dim-line { height: 1px; margin-bottom: 4px; position: relative; }
.dim-top .dim-line::before, .dim-top .dim-line::after {
  content: ""; position: absolute; top: -3px; width: 1px; height: 7px; background: var(--signal);
}
.dim-top .dim-line::before { left: 0; } .dim-top .dim-line::after { right: 0; }
.dim-top .dim-text { position: absolute; left: 50%; transform: translateX(-50%); top: 6px; }
.dim-side { top: 22%; bottom: 18%; right: 14px; width: 1px; }
.dim-side .dim-line { width: 1px; height: 100%; }
.dim-side .dim-text { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); white-space: nowrap; }

/* ----------------------------- Sections --------------------------- */
.section { padding-block: var(--space-section); }
.section-about { background: var(--paper); color: var(--on-light); }
.section-services { background: var(--paper-2); color: var(--on-light); }
.section-projects { background: var(--ink); color: var(--on-dark); }
.section-roadmap { background: var(--ink-2); color: var(--on-dark); }
.section-video { background: var(--ink); color: var(--on-dark); }
.section-contact { background: var(--ink); color: var(--on-dark); }

.section-head { max-width: 64ch; margin-bottom: clamp(2.2rem, 5vw, 3.5rem); }
.section-marker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1rem;
}
.marker-num {
  font-weight: 700;
  color: var(--on-light);
  border: 1px solid var(--line-light-strong);
  border-radius: 4px;
  padding: 0.12rem 0.4rem;
  font-size: 0.7rem;
}
.section-marker--light .marker-num { color: var(--on-dark); border-color: var(--line-dark-strong); }
.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.85rem, 4.6vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--on-light);
  text-wrap: balance;
}
.section-title--light { color: var(--on-dark); }
.section-intro {
  margin-top: 1.1rem;
  font-size: 1.08rem;
  color: var(--on-dark-dim);
  max-width: 56ch;
}
.section-projects .section-intro { color: var(--on-dark-dim); }

/* --------------------------- О компании --------------------------- */
.about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
}
.about-lead p { color: var(--on-light-dim); margin-bottom: 1.1rem; max-width: 62ch; }
.lead-text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.3rem, 3vw, 1.7rem) !important;
  line-height: 1.25;
  color: var(--on-light) !important;
  letter-spacing: -0.005em;
}
.about-note {
  border-left: 2px solid var(--signal);
  padding-left: 1.1rem;
  color: var(--on-light-dim);
}
.cluster {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.6rem !important;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--line-light-strong);
  border-radius: 999px;
  color: var(--on-light) !important;
  font-weight: 600;
  font-size: 0.92rem;
}
.cluster svg { color: var(--signal); flex: none; }

.about-stats { display: grid; gap: 1rem; align-content: start; }
.figure-card {
  position: relative;
  display: grid;
  gap: 0.3rem;
  padding: 1.4rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.figure-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--signal);
  transform: scaleY(0.3);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}
.figure-card:hover::before { transform: scaleY(1); }
.figure-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--steel-d);
}
.figure-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 3.4rem);
  line-height: 1;
  color: var(--on-light);
  font-variant-numeric: tabular-nums;
}
.figure-value i { color: var(--signal); font-style: normal; }
.figure-desc { color: var(--on-light-dim); font-size: 0.95rem; }

/* ----------------------------- Видео ------------------------------ */
.video-frame {
  position: relative;
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-pop);
}
.video-aspect { position: relative; aspect-ratio: 16 / 9; }
.video-aspect iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-play {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 76px; height: 76px;
  border-radius: 50%;
  background: var(--signal);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 30px -10px rgba(255,90,31,0.7);
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease), opacity 0.3s var(--ease);
}
.video-play:hover { transform: translate(-50%, -50%) scale(1.06); background: var(--signal-d); }
.video-play.is-hidden { opacity: 0; pointer-events: none; }
.video-cap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--on-dark-dim);
  border-top: 1px solid var(--line-dark);
}
.video-cap .mono-tag { color: var(--signal); }

/* ----------------------------- Услуги ----------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.service-card {
  position: relative;
  display: grid;
  gap: 0.7rem;
  padding: 1.6rem 1.6rem 1.7rem;
  background: var(--card);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.service-card:hover { transform: translateY(-4px); border-color: var(--signal); box-shadow: var(--shadow-pop); }
.service-icon {
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  border-radius: 12px;
  background: var(--signal-soft);
  color: var(--signal);
}
.service-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.12;
  color: var(--on-light);
}
.service-desc { color: var(--on-light-dim); font-size: 0.96rem; }

/* -------------------------- Дорожная карта ------------------------ */
.roadmap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  counter-reset: road;
}
.road-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.1rem;
  padding: 1.3rem 0;
  border-top: 1px solid var(--line-dark);
  align-items: start;
}
.road-step:last-child { border-bottom: 1px solid var(--line-dark); }
.road-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--signal);
  padding-top: 0.2rem;
  font-variant-numeric: tabular-nums;
}
.road-text { color: var(--on-dark-dim); font-size: clamp(1rem, 2.2vw, 1.15rem); max-width: 80ch; }
.road-step--ext .road-num { color: var(--on-dark-dim); }
.road-step--ext .road-text { color: var(--on-dark); }
.road-step--ext { background: linear-gradient(90deg, rgba(255,90,31,0.05), transparent 60%); }

/* ----------------------------- Проекты ---------------------------- */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}
.project-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.project-card:hover { transform: translateY(-4px); border-color: var(--line-dark-strong); }
.project-visual {
  position: relative;
  aspect-ratio: 3 / 2;
  display: grid;
  place-items: center;
  padding: 1.6rem;
  color: var(--on-dark-dim);
  overflow: hidden;
  background:
    radial-gradient(80% 80% at 50% 30%, rgba(255,90,31,0.08), transparent 70%),
    repeating-linear-gradient(90deg, var(--line-dark) 0 1px, transparent 1px 30px),
    repeating-linear-gradient(0deg, var(--line-dark) 0 1px, transparent 1px 30px);
}
/* Pull the illustration out of flow so the box keeps its 3/2 aspect-ratio
   (otherwise the inline SVG's intrinsic height drives the box height and the
   cards stop matching the model-slot in shared rows). */
.project-visual svg {
  position: absolute;
  top: 1.6rem;
  right: 1.6rem;
  bottom: 1.6rem;
  left: 1.6rem;
  width: auto;
  height: auto;
  max-width: none;
}
.pv-tag {
  position: absolute;
  top: 0.8rem; left: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--signal);
}
.project-meta { padding: 1.3rem 1.4rem 1.5rem; display: grid; gap: 0.4rem; }
.project-name { font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; color: var(--on-dark); }
.project-desc { color: var(--on-dark-dim); font-size: 0.94rem; }

/* 3D placeholder slot */
.project-card--model {
  border: 1px dashed var(--line-dark-strong);
  background:
    linear-gradient(180deg, rgba(255,90,31,0.07), transparent 50%),
    var(--panel-2);
}
.model-slot {
  position: relative;
  aspect-ratio: 3 / 2;
  display: grid;
  place-items: center;
  gap: 0.8rem;
  color: var(--signal);
}
.model-cube { animation: spin3d 18s linear infinite; transform-box: fill-box; transform-origin: center; }
@keyframes spin3d { to { transform: rotate(360deg); } }
.model-badge {
  position: absolute;
  bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark);
  border: 1px solid var(--signal);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
}

/* ---------------------------- CTA banner -------------------------- */
.cta-banner {
  position: relative;
  background: var(--signal);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.cta-grid {
  position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(80% 120% at 50% 0%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(80% 120% at 50% 0%, #000, transparent 75%);
}
.cta-inner {
  text-align: center;
  padding-block: clamp(3.5rem, 8vw, 6rem);
  display: grid;
  justify-items: center;
  gap: 1.4rem;
}
.cta-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
}
.cta-quote {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 4.6vw, 3rem);
  line-height: 1.08;
  max-width: 20ch;
  text-wrap: balance;
}
.cta-banner .btn-primary { background: var(--ink); box-shadow: 0 12px 30px -12px rgba(0,0,0,0.6); }
.cta-banner .btn-primary:hover { background: #000; }

/* ----------------------------- Контакты --------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
}
.contact-text { color: var(--on-dark-dim); margin-top: 1rem; max-width: 46ch; }
.contact-list { margin-top: 2rem; display: grid; gap: 1rem; }
.contact-list li {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-dark);
}
.contact-key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-dim);
}
.contact-val { font-size: 1.05rem; font-weight: 600; color: var(--on-dark); }
a.contact-val:hover { color: var(--signal); }

/* Form */
.contact-form {
  display: grid;
  gap: 1.1rem;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  background: var(--panel);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow-pop);
}
.form-row { display: grid; grid-template-columns: 1fr; gap: 1.1rem; }
.field { display: grid; gap: 0.4rem; }
.field-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-dark-dim);
}
.field input, .field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--ink);
  border: 1px solid var(--line-dark-strong);
  border-radius: var(--radius-sm);
  color: var(--on-dark);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder, .field textarea::placeholder { color: #5e6a76; }
.field input:focus-visible, .field textarea:focus-visible {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-soft);
}
.field.is-invalid input, .field.is-invalid textarea { border-color: #ff6b6b; }
.field-error {
  min-height: 0;
  font-size: 0.8rem;
  color: #ff8a7a;
}
.field.is-invalid .field-error { min-height: 1rem; }

.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.consent {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: start;
  font-size: 0.9rem;
  color: var(--on-dark-dim);
  cursor: pointer;
}
.consent input {
  width: 20px; height: 20px;
  margin-top: 0.15rem;
  accent-color: var(--signal);
  flex: none;
}
.consent a { color: var(--signal); text-decoration: underline; text-underline-offset: 2px; }
.contact-form > .field-error[data-for="consent"] { margin-top: -0.6rem; }

/* Submit + spinner */
#form-submit { position: relative; }
.btn-spinner {
  display: none;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.contact-form.is-sending .btn-label { opacity: 0.75; }
.contact-form.is-sending .btn-spinner { display: inline-block; }

.form-status {
  min-height: 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
}
.form-status.is-success { color: #6ee7a8; }
.form-status.is-error { color: #ff8a7a; }

/* ----------------------------- Footer ----------------------------- */
.site-footer { background: #0A0F14; color: var(--on-dark-dim); }
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-block: clamp(2.6rem, 6vw, 4rem) 2rem;
  border-bottom: 1px solid var(--line-dark);
}
.footer-name { font-size: 1.3rem; color: var(--on-dark); }
.footer-tag { margin-top: 0.8rem; max-width: 42ch; font-size: 0.95rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; align-content: start; }
.footer-nav a { color: var(--on-dark-dim); font-weight: 600; }
.footer-nav a:hover { color: var(--signal); }
.footer-contacts { display: grid; gap: 0.5rem; align-content: start; }
.footer-contacts a { color: var(--on-dark); font-weight: 600; }
.footer-contacts a:hover { color: var(--signal); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem;
  padding-block: 1.4rem;
  font-size: 0.82rem;
}
.footer-note { color: var(--steel); }

/* --------------------------- Scroll reveal ------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* =========================== Breakpoints ========================== */
@media (min-width: 600px) {
  .form-row { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 880px) {
  .hero-inner { grid-template-columns: 1.05fr 0.95fr; }
  .service-grid { grid-template-columns: repeat(3, 1fr); }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { grid-template-columns: 1.4fr 1fr; align-items: start; }
  .about-stats { grid-template-columns: 1fr; position: sticky; top: 96px; }
  .contact-layout { grid-template-columns: 0.9fr 1.1fr; align-items: start; }
  .roadmap { grid-template-columns: 1fr 1fr; column-gap: 3rem; }
  .road-step { padding-block: 1.4rem; }
}

@media (min-width: 1040px) {
  .project-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Mobile nav */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    padding: 1rem var(--gutter) 1.6rem;
    background: rgba(15, 21, 27, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line-dark);
    transform: translateY(-130%);
    transition: transform 0.32s var(--ease);
    max-height: calc(100dvh - 72px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .primary-nav.is-open { transform: translateY(0); }
  .primary-nav a { padding: 0.85rem 0.6rem; font-size: 1.05rem; border-bottom: 1px solid var(--line-dark); }
  .primary-nav a::after { display: none; }
  .primary-nav .nav-cta { margin-top: 0.6rem; margin-left: 0; text-align: center; border-bottom: 0; border-radius: var(--radius-sm); }
}

/* --------------------- Reduced motion --------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero-scan, .model-cube { animation: none; }
}