/* NT Group — командный центр участия в госзакупках: продуктовый лендинг.
   Стиль: navy #0D1B2E + золото #C8A24A. Без внешних шрифтов/CDN. */
:root {
  --ink: #0d1b2e;
  --ink-2: #16273f;
  --gold: #c8a24a;
  --gold-light: #e3c884;
  --paper: #faf9f6;
  --card: #ffffff;
  --text: #22303f;
  --muted: #5d6b7c;
  --line: #e6e1d6;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1120px; margin: 0 auto; padding: 0 28px; }
a { color: inherit; }

/* ---------- Навигация ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13,27,46,.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 18px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 8px; display: inline-flex;
  align-items: center; justify-content: center;
  border: 1px solid var(--gold); color: var(--gold);
  background: rgba(200,162,74,.08);
  font-family: Georgia, serif; font-weight: 700; font-size: 17px;
}
.brand-name { color: #fff; font-weight: 600; letter-spacing: 1.5px; font-size: 15px; }
.brand-name em { color: var(--gold-light); font-style: normal; }
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: #cdd7e3; text-decoration: none; font-size: 14px; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.nav-cta { display: flex; align-items: center; gap: 18px; }
.nav-phone { color: #cdd7e3; font-size: 14px; text-decoration: none; }
.nav-phone:hover { color: #fff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--sans); font-weight: 600; font-size: 15px;
  padding: 13px 26px; border-radius: 6px; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .15s, box-shadow .2s, background .2s, border-color .2s;
}
.btn-gold { background: linear-gradient(135deg, var(--gold), #b08c3a); color: #0d1b2e; box-shadow: 0 8px 24px rgba(200,162,74,.28); }
.btn-gold:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(200,162,74,.38); }
.btn-ghost { border-color: rgba(255,255,255,.3); color: #fff; background: transparent; }
.btn-ghost:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.06); }
.btn-ghost-dark { border: 1px solid #cbc2ad; color: var(--ink); background: transparent; }
.btn-ghost-dark:hover { border-color: var(--gold); background: rgba(200,162,74,.07); }
.btn-lg { padding: 16px 34px; font-size: 16px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(200,162,74,.17), transparent 60%),
    radial-gradient(800px 500px at -10% 110%, rgba(200,162,74,.08), transparent 55%),
    linear-gradient(160deg, #0a1526 0%, #0d1b2e 55%, #12233c 100%);
  color: #fff; padding: 104px 0 92px;
}
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 75%);
}
.hero .container { position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--gold-light); border: 1px solid rgba(200,162,74,.35);
  padding: 7px 16px; border-radius: 30px; margin-bottom: 30px;
  background: rgba(200,162,74,.06);
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.hero h1 {
  font-family: Georgia, "Times New Roman", serif; font-weight: 600;
  font-size: 50px; line-height: 1.14; letter-spacing: -.4px;
  max-width: 840px; margin-bottom: 22px;
}
.hero h1 .accent { color: var(--gold-light); font-style: italic; }
.hero .sub { font-size: 17.5px; color: #b9c6d6; max-width: 700px; margin-bottom: 36px; font-weight: 300; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero .note { margin-top: 20px; font-size: 13.5px; color: #8295ab; max-width: 640px; }
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  margin-top: 68px; border: 1px solid rgba(255,255,255,.10); border-radius: 12px;
  background: rgba(255,255,255,.03); overflow: hidden;
}
.stat { padding: 26px 22px; border-right: 1px solid rgba(255,255,255,.08); }
.stat:last-child { border-right: none; }
.stat .num { font-family: Georgia, serif; font-size: 29px; color: var(--gold-light); font-weight: 600; line-height: 1.15; }
.stat .lbl { font-size: 12.5px; color: #93a3b7; margin-top: 6px; letter-spacing: .3px; }

/* ---------- Секции ---------- */
section { padding: 96px 0; }
.sec-head { max-width: 760px; margin-bottom: 52px; }
.sec-kicker {
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--gold);
  font-weight: 600; margin-bottom: 14px; display: flex; align-items: center; gap: 12px;
}
.sec-kicker::before { content: ''; width: 34px; height: 1px; background: var(--gold); }
h2 { font-family: Georgia, serif; font-weight: 600; font-size: 37px; color: var(--ink); line-height: 1.22; letter-spacing: -.3px; }
.sec-lead { color: var(--muted); font-size: 16px; margin-top: 14px; font-weight: 300; }

/* Как работает */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: step; }
.step { position: relative; padding: 30px 26px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.step .idx {
  font-family: Georgia, serif; font-size: 52px; line-height: 1; color: transparent;
  -webkit-text-stroke: 1px var(--gold); font-weight: 700; margin-bottom: 18px;
}
.step h4 { font-size: 17px; color: var(--ink); font-weight: 600; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--muted); }

/* Сегменты */
.alt { background: #f4f1ea; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 28px 26px;
}
.card h3 { font-size: 17px; color: var(--ink); font-weight: 600; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--muted); }
.seg-note {
  margin-top: 26px; background: #fff8e7; border: 1px solid #ecd9a8; border-radius: 10px;
  padding: 16px 20px; font-size: 14px; color: #6f5320;
}

/* ---------- Служебное ---------- */
.hidden { display: none !important; }
section[id], header[id] { scroll-margin-top: 84px; }

/* ---------- Демо / форма заявки ---------- */
.demo {
  background:
    radial-gradient(900px 420px at 85% 0%, rgba(200,162,74,.16), transparent 60%),
    linear-gradient(160deg, #0a1526, #0d1b2e 55%, #12233c);
  color: #fff; padding: 96px 0;
}
.demo-wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.sec-kicker.light { color: var(--gold-light); }
.demo-intro h2 { color: #fff; font-size: 40px; line-height: 1.16; margin-bottom: 18px; }
.demo-intro p { color: #b9c6d6; font-size: 16px; font-weight: 300; max-width: 520px; }
.demo-intro p + p { margin-top: 12px; }
.demo-form-box {
  background: var(--card); color: var(--text); border-radius: 16px;
  padding: 34px 32px; box-shadow: 0 26px 64px rgba(0,0,0,.35);
}
.demo-form-box h3 { font-family: Georgia, serif; font-size: 22px; color: var(--ink); margin-bottom: 6px; }
.demo-form-sub { font-size: 14px; color: var(--muted); margin-bottom: 22px; }
.lead-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink); }
.field input,
.field textarea {
  font-family: var(--sans); font-size: 15px; color: var(--text);
  background: #fff; border: 1px solid #d8d2c5; border-radius: 7px;
  padding: 12px 14px; width: 100%; transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 96px; }
.field input:focus,
.field textarea:focus {
  outline: none; border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(200,162,74,.18);
}
.field input::placeholder,
.field textarea::placeholder { color: #a4a597; }
.check {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13px; color: var(--muted); cursor: pointer;
}
.check input { margin-top: 3px; accent-color: var(--gold); width: 17px; height: 17px; flex: none; }
.form-legal { font-size: 12px; color: var(--muted); line-height: 1.55; }
.btn-submit { width: 100%; margin-top: 4px; }
.form-status {
  font-size: 14px; font-weight: 600; padding: 13px 15px; border-radius: 8px;
  background: #f1f8f1; border: 1px solid #bfdcbf; color: #1d6b2e;
}
.form-status.error { background: #fdf1f1; border-color: #ecc9c9; color: #9b2c2c; }
.hp-field {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px;
  overflow: hidden; opacity: 0;
}

/* CTA */
.cta-band {
  background:
    radial-gradient(900px 400px at 20% 0%, rgba(200,162,74,.18), transparent 60%),
    linear-gradient(160deg, #0a1526, #0d1b2e 60%, #12233c);
  color: #fff; text-align: center; padding: 92px 28px;
}
.cta-band h2 { color: #fff; font-size: 38px; margin-bottom: 14px; }
.cta-band h2 .accent { color: var(--gold-light); font-style: italic; }
.cta-band p { color: #aebccd; font-size: 16px; max-width: 620px; margin: 0 auto 34px; font-weight: 300; }
.cta-band .actions { justify-content: center; display: flex; flex-wrap: wrap; gap: 16px; }

/* Футер */
footer { background: #0a1424; color: #7e90a5; padding: 44px 0 38px; font-size: 14px; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.f-brand { font-family: Georgia, serif; font-size: 19px; color: #fff; letter-spacing: 1px; }
.f-brand span { color: var(--gold); }
.f-contacts { text-align: right; line-height: 1.9; }
footer a { color: var(--gold-light); text-decoration: none; }
footer a:hover { text-decoration: underline; }
.copy { border-top: 1px solid rgba(255,255,255,.07); padding-top: 22px; text-align: center; font-size: 12.5px; color: #5a6b7f; }

/* ---------- Адаптивность ---------- */
@media (max-width: 980px) {
  .steps { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .demo-wrap { grid-template-columns: 1fr; gap: 44px; }
}
@media (max-width: 860px) {
  .nav-links { display: none; }
  .cards { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .hero { padding: 68px 0 62px; }
  .hero h1 { font-size: 34px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-bottom: 1px solid rgba(255,255,255,.08); }
  .f-contacts { text-align: left; }
  section { padding: 64px 0; }
  h2 { font-size: 28px; }
  .demo { padding: 70px 0; }
  .demo-intro h2 { font-size: 32px; }
}
@media (max-width: 560px) {
  .nav-phone { display: none; }
  .container { padding: 0 20px; }
  .cta-band { padding: 70px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .demo-form-box { padding: 28px 20px; }
}