:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --text: #172033;
  --muted: #667085;
  --primary: #155eef;
  --primary-dark: #0b46be;
  --teal: #0b8d91;
  --border: #dce3ec;
  --shadow: 0 20px 55px rgba(28,45,75,.10);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.page-glow { position: fixed; z-index: -1; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.page-glow-a { width: 420px; height: 420px; top: -180px; right: -120px; background: rgba(21,94,239,.15); }
.page-glow-b { width: 360px; height: 360px; top: 760px; left: -180px; background: rgba(11,141,145,.12); }

.section-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 92px 0; }

.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 13px max(20px, calc((100vw - 1180px)/2));
  background: rgba(255,255,255,.86);
  border-bottom: 1px solid rgba(220,227,236,.9);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-mark {
  width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 13px; color: #fff; font-weight: 800;
  background: linear-gradient(145deg, #1f74ff, #0ea5a8);
  box-shadow: 0 10px 24px rgba(21,94,239,.25);
}
.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { font-size: 15px; }
.brand-copy small { color: var(--muted); font-size: 11px; font-weight: 600; }
.topnav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.topnav a { color: #465066; font-size: 14px; font-weight: 650; }
.topnav a:hover { color: var(--primary); }
.top-actions { display: flex; gap: 10px; }

.btn {
  min-height: 42px; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; border: 0; border-radius: 12px; cursor: pointer;
  font-size: 14px; font-weight: 750; transition: .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: white; background: var(--primary); box-shadow: 0 10px 24px rgba(21,94,239,.22); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 14px 30px rgba(21,94,239,.28); }
.btn-ghost { color: #334155; background: var(--surface-2); }
.btn-ghost:hover { background: #e3eaf3; }
.btn-telegram { color: #fff; background: linear-gradient(135deg, #229ED9, #168AC0); box-shadow: 0 10px 24px rgba(34,158,217,.22); }
.btn-telegram:hover { background: linear-gradient(135deg, #168fca, #0f78aa); box-shadow: 0 14px 30px rgba(34,158,217,.28); }
.contact-btn-icon { width: 24px; height: 24px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 8px; background: rgba(255,255,255,.17); font-size: 13px; font-weight: 900; }
.contact-btn-icon-telegram { font-size: 15px; }
.btn-light { color: #12386d; background: #fff; }
.btn-light:hover { background: #f3f7ff; }
.btn-outline-light { color: #fff; background: transparent; border: 1px solid rgba(255,255,255,.36); }
.btn-outline-light:disabled { opacity: .62; cursor: not-allowed; transform: none; }
.btn-disabled { color: #8b95a7; background: #edf1f6; cursor: not-allowed; box-shadow: none; }
.btn-disabled:hover { transform: none; }
.btn-lg { min-height: 50px; padding: 13px 20px; border-radius: 14px; font-size: 15px; }

.hero {
  min-height: 680px; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 60px;
  padding-top: 76px; padding-bottom: 62px;
}
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; color: var(--primary); font-size: 12px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(145deg, var(--primary), var(--teal)); box-shadow: 0 0 0 5px rgba(21,94,239,.10); }
.hero h1 { margin: 0; max-width: 720px; font-size: clamp(44px, 5.7vw, 76px); line-height: .99; letter-spacing: -.055em; }
.hero-lead { max-width: 680px; margin: 25px 0 0; color: #596579; font-size: 18px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 12px; margin-top: 31px; flex-wrap: wrap; }
.dev-note { margin-left: -3px; color: #7f899a; font-size: 12px; font-weight: 650; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 28px; }
.hero-points span { position: relative; padding-left: 21px; color: #465066; font-size: 13px; font-weight: 650; }
.hero-points span::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 900; }

.hero-visual { position: relative; min-width: 0; perspective: 1200px; }
.dashboard-window {
  overflow: hidden; border: 1px solid rgba(197,207,220,.86); border-radius: 24px;
  background: #fff; box-shadow: 0 35px 90px rgba(32,55,90,.18); transform: rotateY(-4deg) rotateX(1deg);
}
.window-bar { height: 43px; display: flex; align-items: center; gap: 7px; padding: 0 15px; background: #f8fafc; border-bottom: 1px solid #e7ecf2; }
.window-bar > span { width: 8px; height: 8px; border-radius: 50%; background: #cfd7e3; }
.window-title { margin-left: auto; margin-right: auto; color: #7a8494; font-size: 10px; font-weight: 700; }
.dashboard-body { display: grid; grid-template-columns: 56px 1fr; min-height: 420px; }
.mini-sidebar { display: flex; align-items: center; flex-direction: column; gap: 19px; padding-top: 18px; background: #fbfcfe; border-right: 1px solid #ebeff4; }
.mini-brand { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 9px; color: #fff; font-size: 12px; font-weight: 800; background: linear-gradient(145deg,#1f74ff,#0ea5a8); }
.mini-sidebar span { width: 20px; height: 6px; border-radius: 999px; background: #d9e0e9; }
.mini-sidebar span.active { background: #76a4ff; }
.mini-main { padding: 23px; background: #f7f9fc; }
.mini-heading { display: flex; justify-content: space-between; align-items: center; }
.mini-heading div:first-child { display: grid; gap: 4px; }
.mini-heading small { color: #8792a4; font-size: 9px; }
.mini-heading strong { font-size: 15px; }
.mini-avatar { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 10px; color: #155eef; background: #e6efff; font-size: 9px; font-weight: 800; }
.metric-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-top: 19px; }
.metric-card { padding: 13px; border: 1px solid #e2e8f0; border-radius: 13px; background: #fff; }
.metric-card small, .metric-card strong, .metric-card em { display: block; }
.metric-card small { color: #8a95a6; font-size: 8px; }
.metric-card strong { margin-top: 6px; font-size: 19px; }
.metric-card em { margin-top: 5px; color: #0b8d91; font-size: 7px; font-style: normal; }
.chart-card { margin-top: 11px; padding: 15px; border: 1px solid #e2e8f0; border-radius: 14px; background: #fff; }
.chart-head { display: flex; justify-content: space-between; align-items: center; font-size: 10px; }
.chart-head span { color: #8a95a6; font-size: 8px; }
.bars { height: 115px; display: flex; align-items: end; gap: 9px; margin-top: 14px; border-bottom: 1px solid #edf1f5; }
.bars i { flex: 1; min-height: 16px; border-radius: 5px 5px 0 0; background: linear-gradient(180deg,#1f74ff,#0b8d91); opacity: .82; }
.appointment-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 11px; margin-top: 11px; padding: 12px; border: 1px solid #e2e8f0; border-radius: 13px; background: #fff; }
.appointment-time { color: var(--primary); font-size: 11px; font-weight: 800; }
.appointment-card div:nth-child(2) { display: grid; gap: 3px; }
.appointment-card strong { font-size: 9px; }
.appointment-card small { color: #8b95a5; font-size: 7px; }
.appointment-card > span { padding: 5px 7px; border-radius: 999px; color: #138a5b; background: #e8f7f1; font-size: 7px; font-weight: 800; }
.float-card { position: absolute; display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid rgba(220,227,236,.96); border-radius: 14px; background: rgba(255,255,255,.94); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.float-card strong, .float-card small { display: block; }
.float-card strong { font-size: 11px; }
.float-card small { margin-top: 3px; color: #7b8697; font-size: 8px; }
.float-card-a { left: -38px; bottom: 54px; }
.float-card-b { right: -18px; top: 62px; }
.float-icon { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 9px; color: #fff; background: #138a5b; font-size: 11px; font-weight: 900; }
.pulse { width: 10px; height: 10px; border-radius: 50%; background: #13a36f; box-shadow: 0 0 0 6px rgba(19,163,111,.13); }

.trust-strip { padding: 22px 28px; border: 1px solid var(--border); border-radius: 18px; background: rgba(255,255,255,.72); box-shadow: 0 8px 30px rgba(28,45,75,.045); }
.trust-strip p { margin: 0 0 15px; color: #7c8798; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.trust-items { display: grid; grid-template-columns: repeat(6,1fr); gap: 10px; }
.trust-items span { color: #4a5568; font-size: 13px; font-weight: 700; }

.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading h2, .advantage-copy h2, .demo-banner h2, .contact-card h2 { margin: 0; font-size: clamp(34px,4vw,54px); line-height: 1.08; letter-spacing: -.04em; }
.section-heading p, .advantage-copy p, .demo-banner p, .contact-card p { color: var(--muted); font-size: 17px; line-height: 1.65; }

.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.feature-card { min-height: 290px; padding: 25px; border: 1px solid var(--border); border-radius: var(--radius); background: rgba(255,255,255,.82); box-shadow: 0 12px 34px rgba(28,45,75,.055); transition: .22s ease; }
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(28,45,75,.10); }
.feature-card-primary { color: #fff; border: 0; background: radial-gradient(circle at top right,rgba(255,255,255,.20),transparent 36%),linear-gradient(135deg,#155eef,#0b8d91); }
.feature-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; color: var(--primary); background: #e9f0ff; font-size: 11px; font-weight: 850; }
.feature-card-primary .feature-icon { color: #fff; background: rgba(255,255,255,.17); }
.feature-card h3 { margin: 30px 0 11px; font-size: 20px; line-height: 1.3; }
.feature-card p { margin: 0; color: #687386; font-size: 14px; line-height: 1.65; }
.feature-card-primary p { color: rgba(255,255,255,.78); }
.feature-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 22px; }
.feature-tags span { padding: 6px 9px; border-radius: 999px; color: #536176; background: #f0f4f8; font-size: 10px; font-weight: 750; }
.feature-card-primary .feature-tags span { color: #fff; background: rgba(255,255,255,.13); }

.advantage-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 55px; padding: 54px; border-radius: 30px; color: #fff; background: radial-gradient(circle at 90% 10%,rgba(255,255,255,.18),transparent 34%),linear-gradient(135deg,#155eef,#087f87); box-shadow: 0 28px 70px rgba(21,94,239,.22); }
.eyebrow-light { color: rgba(255,255,255,.78); }
.advantage-copy p { color: rgba(255,255,255,.76); }
.advantage-copy .btn { margin-top: 12px; }
.advantage-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 15px; }
.advantage-list > div { padding: 20px; border: 1px solid rgba(255,255,255,.18); border-radius: 18px; background: rgba(255,255,255,.10); backdrop-filter: blur(6px); }
.advantage-list span { display: block; color: rgba(255,255,255,.55); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.advantage-list strong { display: block; margin-top: 22px; font-size: 16px; }
.advantage-list p { margin: 7px 0 0; color: rgba(255,255,255,.68); font-size: 12px; line-height: 1.55; }

.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.step { position: relative; padding: 24px 22px; border: 1px solid var(--border); border-radius: 20px; background: #fff; }
.step-number { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 11px; color: var(--primary); background: #eaf1ff; font-size: 11px; font-weight: 850; }
.step h3 { margin: 25px 0 9px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.demo-banner { display: flex; align-items: center; justify-content: space-between; gap: 50px; padding: 46px 50px; border-radius: 28px; color: #fff; background: linear-gradient(135deg,#172033,#1c416e); box-shadow: var(--shadow); }
.demo-banner > div:first-child { max-width: 700px; }
.demo-banner h2 { font-size: clamp(32px,4vw,48px); }
.demo-banner p { color: rgba(255,255,255,.70); }
.demo-banner-actions { display: flex; flex-direction: column; gap: 10px; min-width: 220px; }

.contact-card { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 50px; padding: 48px; border: 1px solid var(--border); border-radius: 28px; background: rgba(255,255,255,.82); box-shadow: var(--shadow); }
.contact-card > div:first-child { max-width: 780px; }
.contact-card h2 { font-size: clamp(32px,4vw,48px); }
.contact-actions { display: flex; flex-direction: column; gap: 10px; min-width: 285px; }
.contact-actions .btn { justify-content: flex-start; }

.footer { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-top: 30px; padding-bottom: 42px; border-top: 1px solid var(--border); }
.footer p { color: #7a8494; font-size: 12px; }
.footer-links { display: flex; gap: 18px; color: #4e596b; font-size: 12px; font-weight: 650; }
.disabled-link { color: #9aa3b0; }

.reveal {
  opacity: 0;
  filter: blur(12px);
  transform: translate3d(0, 30px, 0) scale(.985);
  transition:
    opacity .8s cubic-bezier(.22,1,.36,1),
    transform .8s cubic-bezier(.22,1,.36,1),
    filter .8s cubic-bezier(.22,1,.36,1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform, filter;
}
.reveal.reveal-left { transform: translate3d(-42px, 18px, 0) scale(.985); }
.reveal.reveal-right { transform: translate3d(42px, 18px, 0) scale(.985); }
.reveal.reveal-soft { transform: translate3d(0, 22px, 0) scale(.97); }
.reveal.is-visible { opacity: 1; filter: blur(0); transform: translate3d(0,0,0) scale(1); }

@media (max-width: 1080px) {
  .topnav { display: none; }
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 70px; }
  .hero-copy { text-align: center; }
  .hero h1, .hero-lead { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-points { justify-content: center; }
  .hero-visual { width: min(760px,100%); margin: 0 auto; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .advantage-panel { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2,1fr); }
  .contact-card { grid-template-columns: 1fr; }
  .contact-actions { flex-direction: row; min-width: 0; }
}

@media (max-width: 760px) {
  .section-shell { width: min(100% - 28px,1180px); }
  .section { padding: 68px 0; }
  .topbar { padding: 11px 14px; }
  .brand-copy small { display: none; }
  .desktop-only { display: none; }
  .top-actions .btn-primary { min-height: 38px; padding: 8px 11px; font-size: 12px; }
  .hero { min-height: auto; padding-top: 52px; padding-bottom: 45px; }
  .hero h1 { font-size: clamp(40px,13vw,58px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .dev-note { margin: -4px 0 0; text-align: center; }
  .hero-points { display: grid; grid-template-columns: 1fr; justify-items: start; width: fit-content; margin-left: auto; margin-right: auto; }
  .dashboard-window { transform: none; }
  .dashboard-body { grid-template-columns: 38px 1fr; min-height: 330px; }
  .mini-main { padding: 14px; }
  .metric-row { grid-template-columns: repeat(3, minmax(0,1fr)); gap: 6px; }
  .metric-card { padding: 8px; }
  .metric-card strong { font-size: 14px; }
  .chart-card { padding: 10px; }
  .bars { height: 78px; gap: 5px; }
  .float-card { display: none; }
  .trust-items { grid-template-columns: repeat(2,1fr); }
  .feature-grid, .steps { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .advantage-panel { padding: 31px 23px; }
  .advantage-list { grid-template-columns: 1fr; }
  .demo-banner { display: grid; padding: 32px 24px; }
  .demo-banner-actions { min-width: 0; }
  .contact-card { padding: 31px 23px; }
  .contact-actions { flex-direction: column; }
  .footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; filter: none; transform: none; }
}

/* BublAPI platform and API selector */
.general-benefits { padding-bottom: 44px; }
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.platform-card { padding: 28px; border: 1px solid var(--border); border-radius: 22px; background: rgba(255,255,255,.84); box-shadow: 0 12px 34px rgba(28,45,75,.055); }
.platform-card > span { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 13px; color: var(--primary); background: #eaf1ff; font-size: 11px; font-weight: 850; }
.platform-card h3 { margin: 25px 0 10px; font-size: 20px; }
.platform-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.api-catalog { padding-top: 44px; padding-bottom: 64px; }
.api-selector { display: flex; flex-wrap: wrap; gap: 18px; }
.api-tile { position: relative; width: 230px; min-height: 230px; display: flex; flex-direction: column; align-items: flex-start; padding: 24px; border: 1px solid var(--border); border-radius: 24px; color: var(--text); background: rgba(255,255,255,.82); box-shadow: 0 12px 34px rgba(28,45,75,.055); cursor: pointer; text-align: left; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.api-tile:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(28,45,75,.10); }
.api-tile.is-active { border-color: rgba(21,94,239,.55); background: radial-gradient(circle at top right,rgba(255,255,255,.23),transparent 34%),linear-gradient(145deg,#155eef,#0b8d91); color: #fff; box-shadow: 0 24px 55px rgba(21,94,239,.22); }
.api-tile-mark { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 16px; background: #eaf1ff; color: var(--primary); font-size: 22px; font-weight: 850; }
.api-tile.is-active .api-tile-mark { color: #fff; background: rgba(255,255,255,.17); }
.api-tile strong { margin-top: 28px; font-size: 22px; }
.api-tile small { margin-top: 8px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.api-tile.is-active small { color: rgba(255,255,255,.76); }
.api-tile em { margin-top: auto; padding-top: 20px; font-size: 10px; font-style: normal; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; opacity: .72; }
.api-product { display: none; }
.api-product.is-active { display: contents; }
@media (max-width: 760px) {
  .platform-grid { grid-template-columns: 1fr; }
  .api-tile { width: 100%; min-height: 205px; }
}