:root {
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 1240px;
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --shadow: 0 28px 90px rgba(4, 12, 24, .32);
  --navy-950: #07101f;
  --navy-900: #0b1323;
  --blue-700: #2a4d7c;
  --blue-500: #2563eb;
  --cyan-300: #56c7ff;
  --slate-500: #5d6b7f;
  --slate-300: #a7b3c1;
  --surface: #07101f;
  --surface-2: #0b1323;
  --surface-3: #111d30;
  --text: #f8fafc;
  --muted: rgba(248,250,252,.72);
  --soft: rgba(255,255,255,.08);
  --line: rgba(255,255,255,.11);
  --inverse: #ffffff;
  --inverse-text: #07101f;
  --panel: rgba(255,255,255,.075);
  --glass: rgba(7,16,31,.78);
}

html[data-theme="light"] {
  --surface: #f7f9fc;
  --surface-2: #ffffff;
  --surface-3: #eef3f9;
  --text: #07101f;
  --muted: #5d6b7f;
  --soft: rgba(7,16,31,.06);
  --line: rgba(7,16,31,.11);
  --inverse: #07101f;
  --inverse-text: #ffffff;
  --panel: rgba(255,255,255,.86);
  --glass: rgba(255,255,255,.78);
  --shadow: 0 24px 80px rgba(15,23,42,.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(circle at 80% -10%, rgba(86,199,255,.18), transparent 32rem),
    radial-gradient(circle at 0% 12%, rgba(42,77,124,.22), transparent 28rem),
    var(--surface);
  color: var(--text);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(86,199,255,.075) 1px, transparent 1px),
    linear-gradient(0deg, rgba(86,199,255,.055) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 76%);
  opacity: .72;
  z-index: -1;
}
html[data-theme="light"] body::before { opacity: .35; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: absolute; left: -999px; top: 0; z-index: 99; padding: 10px 14px; border-radius: 10px; background: var(--inverse); color: var(--inverse-text); }
.skip-link:focus { left: 12px; top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  backdrop-filter: blur(22px);
  background: var(--glass);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 190px; }
.brand-symbol { width: 40px; height: 40px; object-fit: contain; filter: drop-shadow(0 10px 22px rgba(37,99,235,.25)); }
.brand-word { font-size: 17px; letter-spacing: -.03em; font-weight: 650; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a, .control-btn {
  color: var(--muted);
  border-radius: 999px;
  padding: 10px 13px;
  font-size: 14px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: .2s ease;
}
.nav a:hover, .nav a.is-active, .control-btn:hover { background: var(--soft); color: var(--text); border-color: var(--line); }
.nav-controls { display: flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; border: 1px solid var(--line); background: var(--soft); color: var(--text); border-radius: 999px; padding: 10px 13px; }

.btn {
  display: inline-flex;
  min-height: 47px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--text);
  box-shadow: 0 12px 34px rgba(0,0,0,.15);
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); border-color: rgba(86,199,255,.55); }
.btn.primary { color: #fff; border-color: rgba(86,199,255,.58); background: linear-gradient(135deg, #2563eb, #56c7ff); }
.btn.inverse { background: var(--inverse); color: var(--inverse-text); border-color: transparent; }
.btn.small { min-height: 38px; padding: 0 14px; font-size: 13px; }

.hero { padding: 92px 0 70px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(390px, .98fr); gap: 52px; align-items: center; }
.eyebrow, .section-kicker { margin: 0 0 14px; color: var(--cyan-300); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 850; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(48px, 7.4vw, 90px); line-height: .94; letter-spacing: -.075em; margin-bottom: 24px; }
h2 { font-size: clamp(34px, 5vw, 58px); line-height: 1; letter-spacing: -.055em; margin-bottom: 16px; }
h3 { letter-spacing: -.025em; }
.hero-lead, .lead { color: var(--muted); font-size: clamp(18px, 2vw, 22px); line-height: 1.62; max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 34px; }
.trust-pill { color: var(--muted); border: 1px solid var(--line); background: var(--soft); padding: 9px 12px; border-radius: 999px; font-size: 13px; }
.hero-card {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.04));
  border-radius: 38px;
  padding: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
html[data-theme="light"] .hero-card { background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.72)); }
.hero-card::after { content: ""; position: absolute; width: 280px; height: 280px; right: -84px; top: -84px; border-radius: 50%; background: radial-gradient(circle, rgba(86,199,255,.33), transparent 65%); }
.browser-shell { position: relative; z-index: 1; overflow: hidden; border-radius: 28px; background: var(--surface-2); border: 1px solid var(--line); }
.browser-top { height: 44px; display: flex; align-items: center; gap: 8px; padding: 0 16px; border-bottom: 1px solid var(--line); }
.dot { width: 11px; height: 11px; border-radius: 50%; background: var(--line); }
.browser-body { padding: 26px; }
.mock-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.mock-brand img { width: 52px; }
.mock-brand span { font-size: 18px; font-weight: 650; }
.mock-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mock-tile { min-height: 122px; border-radius: 20px; background: var(--soft); border: 1px solid var(--line); padding: 16px; }
.mock-tile strong { display: block; margin-bottom: 8px; }
.mock-tile span { display: block; color: var(--muted); font-size: 13px; line-height: 1.45; }

.section { padding: 88px 0; }
.section.alt { background: var(--surface-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 780px; margin-bottom: 35px; }
.section-head.center { text-align: center; margin-inline: auto; }
.muted { color: var(--muted); line-height: 1.72; }
.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.card {
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--panel);
  min-height: 238px;
  box-shadow: 0 18px 70px rgba(0,0,0,.12);
}
.card p { color: var(--muted); line-height: 1.64; margin-bottom: 0; }
.icon-badge { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px; margin-bottom: 20px; background: linear-gradient(135deg, rgba(86,199,255,.25), rgba(42,77,124,.22)); border: 1px solid rgba(86,199,255,.24); font-weight: 900; color: var(--cyan-300); }
.split { display: grid; grid-template-columns: minmax(0,.94fr) minmax(0,1.06fr); gap: 34px; align-items: center; }
.panel { border-radius: var(--radius-xl); background: var(--panel); border: 1px solid var(--line); padding: 26px; box-shadow: var(--shadow); }
.showcase-image { border-radius: 26px; overflow: hidden; border: 1px solid var(--line); background: var(--surface-2); }
.feature-list { display: grid; gap: 14px; margin-top: 22px; }
.feature-item { display: flex; align-items: flex-start; gap: 12px; color: var(--muted); line-height: 1.6; }
.check { flex: 0 0 auto; width: 23px; height: 23px; display: grid; place-items: center; border-radius: 50%; background: rgba(86,199,255,.16); color: var(--cyan-300); font-weight: 900; font-size: 13px; }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.portfolio-card { overflow: hidden; }
.app-art { height: 190px; display: grid; place-items: center; border-radius: 22px; background: radial-gradient(circle at 55% 20%, rgba(86,199,255,.26), transparent 45%), linear-gradient(145deg, #07101f, #142842); margin-bottom: 18px; overflow: hidden; }
.app-art img { width: 118px; max-height: 135px; object-fit: contain; filter: drop-shadow(0 16px 28px rgba(0,0,0,.32)); }
.app-art.wide img { width: 100%; height: 100%; max-height: none; object-fit: cover; filter: none; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.tag { font-size: 12px; padding: 6px 9px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line); color: var(--muted); }

.cta-band { margin-top: 72px; border-radius: 38px; padding: 42px; color: #fff; background: radial-gradient(circle at 80% 10%, rgba(86,199,255,.30), transparent 20rem), linear-gradient(135deg, #07101f, #142842); display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; box-shadow: var(--shadow); }
.cta-band p { color: rgba(248,250,252,.72); margin: 0; }

.page-hero { padding: 76px 0 50px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 920px; }
.page-hero p { max-width: 790px; color: var(--muted); line-height: 1.75; font-size: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
label { color: var(--text); font-weight: 760; font-size: 14px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 16px;
  padding: 14px 15px;
  outline: none;
}
textarea { min-height: 130px; resize: vertical; }
input:focus, textarea:focus, select:focus { border-color: #2563eb; box-shadow: 0 0 0 4px rgba(37,99,235,.13); }
.result-box { display: none; margin-top: 20px; padding: 18px; border-radius: 18px; background: var(--soft); border: 1px solid var(--line); }
.result-box.is-visible { display: block; }
.copy-row { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.copy-row input { font-size: 13px; }
.note { color: var(--muted); font-size: 13px; line-height: 1.6; }
.qr-preview { display: grid; place-items: center; min-height: 340px; border-radius: 26px; background: radial-gradient(circle at 18% 16%, rgba(86,199,255,.18), transparent 15rem), var(--surface-3); border: 1px solid var(--line); }
.qr-code-img { width: min(260px, 76%); border-radius: 18px; background: #fff; padding: 12px; box-shadow: 0 18px 45px rgba(15,23,42,.15); }
.stats-card { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.stat { border-radius: 18px; padding: 16px; background: var(--surface-3); border: 1px solid var(--line); }
.stat strong { display: block; font-size: 22px; }
.stat span { color: var(--muted); font-size: 13px; }

.about-card { display: grid; grid-template-columns: 86px 1fr; gap: 18px; align-items: center; }
.avatar { width: 86px; height: 86px; object-fit: cover; border-radius: 24px; border: 1px solid var(--line); box-shadow: 0 18px 40px rgba(0,0,0,.18); }
.footer { padding: 46px 0; border-top: 1px solid var(--line); background: var(--surface-2); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: 14px; }
.footer small { color: var(--muted); }

.legal { max-width: 880px; line-height: 1.75; color: var(--muted); }
.legal h2 { margin-top: 36px; color: var(--text); font-size: 32px; }

@media (max-width: 980px) {
  .hero-grid, .split { grid-template-columns: 1fr; }
  .service-grid, .portfolio-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 28px, var(--max)); }
  .nav-wrap { height: 70px; }
  .brand { min-width: 0; }
  .brand-word { font-size: 16px; }
  .nav-toggle { display: inline-flex; }
  .nav { position: fixed; left: 14px; right: 14px; top: 78px; display: none; flex-direction: column; align-items: stretch; padding: 12px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); }
  .nav.is-open { display: flex; }
  .nav a { padding: 13px 14px; }
  .nav-controls { gap: 5px; }
  .control-btn { padding: 9px 10px; font-size: 13px; }
  .hero { padding-top: 58px; }
  h1 { font-size: clamp(42px, 13vw, 70px); }
  .hero-card { padding: 16px; border-radius: 28px; }
  .mock-grid, .service-grid, .portfolio-grid, .stats-card, .form-grid { grid-template-columns: 1fr; }
  .copy-row, .footer-grid { grid-template-columns: 1fr; display: grid; }
  .app-art { height: 170px; }
}