:root{
  --bg: #f7f8fc;
  --fg: #0b1020;
  --muted: rgba(11,16,32,.68);

  --glass: rgba(255,255,255,.62);
  --stroke: rgba(11,16,32,.10);
  --shadow: 0 18px 60px rgba(15,23,42,.12);

  --accent: #2563eb;   /* светлый “дорогой” синий */
  --accent2:#06b6d4;   /* мягкий cyan */

  --r: 22px;
  --pill: 999px;

  --btn-x: 0px;
  --btn-y: 0px;

  --t-fast: .16s ease-out;
  --t-med: .28s ease-out;

  --container: 1120px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  min-height:100vh;
  font-family: system-ui, -apple-system, "Inter", Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  overflow-x:hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.container{
  width:100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* Background */
.bg{ position:fixed; inset:0; z-index:-3; pointer-events:none; }
.bg-mesh{
  position:absolute; inset:-20%;
  background:
    radial-gradient(900px 520px at 18% 10%, rgba(37,99,235,.22), transparent 60%),
    radial-gradient(900px 520px at 82% 18%, rgba(6,182,212,.18), transparent 62%),
    radial-gradient(900px 520px at 50% 92%, rgba(99,102,241,.10), transparent 65%),
    linear-gradient(180deg, #fbfcff, #f7f8fc 55%, #fbfcff);
  filter: blur(18px);
  opacity: .95;
  animation: float 18s ease-in-out infinite alternate;
}
@keyframes float{
  0%{ transform: translate3d(0,0,0) scale(1); }
  100%{ transform: translate3d(18px,-12px,0) scale(1.02); }
}
.bg-noise{
  position:absolute; inset:-10%;
  opacity:.07;
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,.08), rgba(0,0,0,.08) 1px, transparent 1px, transparent 3px);
  mix-blend-mode: multiply;
}

/* Header */
.site-header{
  position: sticky;
  top:0;
  z-index: 50;
  border-bottom: 1px solid var(--stroke);
  background: rgba(247,248,252,.70);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
}
.logo{
  width:44px;height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.55);
  box-shadow: 0 10px 30px rgba(15,23,42,.10);
  text-decoration:none;
  color: var(--fg);
  font-weight: 700;
  letter-spacing: .12em;
}

.nav{ display:flex; align-items:center; gap:18px; }
.nav-list{
  list-style:none;
  display:flex;
  gap: 18px;
  margin:0; padding:0;
}
.nav-list a{
  text-decoration:none;
  color: rgba(11,16,32,.62);
  font-size: 13px;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 8px 10px;
  border-radius: var(--pill);
  transition: background var(--t-fast), color var(--t-fast);
}
.nav-list a:hover{
  color: var(--fg);
  background: rgba(11,16,32,.06);
}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius: var(--pill);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.55);
  cursor:pointer;
  position:relative;
  padding:0;
}
.nav-toggle span{
  position:absolute; left:12px; right:12px;
  height:2px; border-radius:999px;
  background: rgba(11,16,32,.85);
  transition: transform var(--t-med), top var(--t-med), bottom var(--t-med);
}
.nav-toggle span:first-child{ top:15px; }
.nav-toggle span:last-child{ bottom:15px; }
.nav-toggle[aria-expanded="true"] span:first-child{ top:20px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child{ bottom:20px; transform: rotate(-45deg); }

/* Glass */
.glass{
  background: var(--glass);
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--r);
}

/* Hero */
.hero{ padding: 86px 0 56px; }
.hero-grid{
  display:grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: center;
}
.kicker{
  margin:0;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(11,16,32,.55);
}
h1{
  margin: 12px 0 12px;
  font-size: clamp(40px, 4vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}
.subtitle{ margin: 0 0 22px; color: var(--muted); max-width: 62ch; }

.actions{ display:flex; gap: 12px; flex-wrap:wrap; margin-bottom: 14px; }
.chips{ display:flex; gap: 10px; flex-wrap:wrap; }
.chip{
  padding: 7px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.55);
  font-size: 13px;
  color: rgba(11,16,32,.68);
}

.hero-card{ padding: 18px; }
.label{ margin:0 0 8px; font-size: 12px; letter-spacing:.18em; text-transform: uppercase; color: rgba(11,16,32,.55); }
.muted{ color: var(--muted); }
.mini{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
  margin-top: 14px;
}
.mini-item{ padding: 12px; border-radius: 18px; }
.mini-k{ margin:0 0 6px; font-size: 12px; letter-spacing:.14em; text-transform: uppercase; color: rgba(11,16,32,.55); }
.mini-v{ margin:0; font-size: 14px; color: rgba(11,16,32,.78); }

.section{ padding: 78px 0; }
.section-head{ margin-bottom: 20px; }
.section-head h2{ margin:0 0 8px; font-size: 28px; letter-spacing: -0.01em; }

.cards{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
}
.card{ padding: 16px; }
.card h3{ margin: 0 0 8px; font-size: 18px; }
.card p{ margin: 0 0 10px; }

.metrics{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
}
.metric{ padding: 16px; }
.metric-k{ margin:0 0 6px; font-size: 26px; letter-spacing: -0.02em; }

.contact{
  padding: 18px;
  display:grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 14px;
}
.contact-actions{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap: 10px;
}
.small{ font-size: 13px; }

.mono{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
}
.link{
  padding: 10px 12px;
  border-radius: 18px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.55);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.55);
  color: var(--fg);
  cursor:pointer;
  text-decoration:none;
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
  transform: translate3d(var(--btn-x), var(--btn-y), 0);
}
.btn:hover{
  transform: translate3d(var(--btn-x), calc(var(--btn-y) - 1px), 0);
  box-shadow:
    0 18px 50px rgba(15,23,42,.14),
    0 0 0 1px rgba(37,99,235,.18),
    0 0 18px rgba(6,182,212,.14);
}
.btn-primary{
  color: white;
  border-color: rgba(37,99,235,.22);
  background:
    radial-gradient(circle at 20% 10%, rgba(6,182,212,.55), transparent 55%),
    radial-gradient(circle at 80% 90%, rgba(37,99,235,.75), transparent 60%),
    linear-gradient(135deg, #2563eb, #1d4ed8);
}
.btn-ghost{
  background: rgba(255,255,255,.55);
  color: rgba(11,16,32,.74);
}
.btn-lg{ padding: 14px 22px; }

/* Tilt */
.tilt{
  transform-style: preserve-3d;
  transition: transform var(--t-med), box-shadow var(--t-med);
}

.site-footer{
  border-top: 1px solid var(--stroke);
  padding: 18px 0 22px;
  background: rgba(255,255,255,.50);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.footer-inner p{ margin:0; color: rgba(11,16,32,.62); font-size: 13px; }

#services, #trust, #contacts{ scroll-margin-top: 92px; }

@media (max-width: 1040px){
  .hero-grid{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px){
  .section{ padding: 64px 0; }
  .cards{ grid-template-columns: 1fr; }
  .metrics{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }

  .nav-toggle{ display:inline-flex; }
  .nav-list{
    position: fixed;
    left: 16px; right: 16px;
    top: 72px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px;
    border-radius: 22px;
    background: rgba(255,255,255,.72);
    border: 1px solid var(--stroke);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(-14px);
    pointer-events: none;
    transition: opacity var(--t-med), transform var(--t-med);
  }
  .nav-list.is-open{
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

@media (prefers-reduced-motion: reduce){
  *{
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}