:root {
  --primary: #38bdf8;
  --primary-dark: #0284c7;
  --primary-soft: #e0f2fe;
  --accent: #14b8a6;
  --gold: #facc15;
  --dark: #102033;
  --darker: #071523;
  --light: #f8fcff;
  --muted: #5b6b7d;
  --line: rgba(16, 32, 51, 0.12);
  --white: #fff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--light);
  color: var(--dark);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; }
svg { width: 1.2em; height: 1.2em; fill: currentColor; flex: 0 0 auto; }
.icon-sprite { display: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  background: rgba(248, 252, 255, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--primary-dark); font-size: 22px; font-weight: 800; text-decoration: none; }
.logo-icon { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 10px; color: white; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.nav-cta, .btn-primary, .btn-secondary, .copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  border-radius: 999px;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}
.nav-cta { padding: 10px 22px; background: var(--dark); color: white; }
.btn-primary { padding: 14px 28px; border: 0; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: white; box-shadow: 0 14px 30px rgba(2, 132, 199, 0.26); }
.btn-secondary { padding: 12px 26px; border: 2px solid var(--dark); background: white; color: var(--dark); }
.nav-cta:hover, .btn-primary:hover, .btn-secondary:hover, .copy-btn:hover { transform: translateY(-2px); }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }

.hero {
  min-height: 96vh;
  display: grid;
  place-items: center;
  padding: 130px 24px 80px;
  text-align: center;
  background:
    radial-gradient(circle at 20% 25%, rgba(56, 189, 248, 0.28), transparent 34%),
    radial-gradient(circle at 82% 18%, rgba(20, 184, 166, 0.20), transparent 30%),
    linear-gradient(180deg, #effaff 0%, var(--light) 72%);
}
.hero-content { max-width: 940px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 24px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; background: white; color: var(--primary-dark); font-size: 13px; font-weight: 750; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
.hero h1, h2 { letter-spacing: 0; line-height: 1.08; }
.hero h1 { margin-bottom: 24px; font-size: clamp(38px, 6vw, 72px); font-weight: 850; }
.highlight { color: var(--primary-dark); }
.hero p { max-width: 730px; margin: 0 auto 38px; color: var(--muted); font-size: clamp(17px, 2vw, 21px); }
.cta-group, .hero-trust { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.hero-trust { margin-top: 48px; color: var(--muted); font-weight: 650; }
.hero-trust span { display: inline-flex; align-items: center; gap: 8px; }

section { padding: 92px 24px; }
.section-header { max-width: 760px; margin: 0 auto 54px; text-align: center; }
.section-tag { display: inline-block; margin-bottom: 14px; padding: 6px 14px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); font-size: 13px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
h2 { margin-bottom: 16px; font-size: clamp(30px, 4.5vw, 48px); font-weight: 850; }
.section-header p { color: var(--muted); font-size: 18px; }

.problems, .features, .cta-final { background: var(--darker); color: white; }
.problems .section-header p, .features .section-header p, .cta-final .section-header p { color: rgba(255,255,255,.74); }
.problem-grid, .benefit-grid, .security-grid, .why-grid { display: grid; max-width: 1120px; margin: 0 auto; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.problem-card, .feat, .benefit-card, .sec-item, .step, .offer-card, .short-card, .contact-form, .contact-card {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: white;
}
.problem-card { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.10); padding: 26px; }
.problem-card p { color: rgba(255,255,255,.72); }
.card-icon, .qr-icon { display: grid; place-items: center; width: 50px; height: 50px; margin-bottom: 16px; border-radius: 14px; color: white; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.solution-card {
  max-width: 1000px;
  margin: 0 auto;
  padding: 56px;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-align: center;
  box-shadow: 0 28px 56px rgba(2, 132, 199, 0.22);
}
.solution-card .qr-icon { width: 82px; height: 82px; margin: 0 auto 22px; background: white; color: var(--primary-dark); }
.solution-card p { max-width: 740px; margin: 0 auto; font-size: 19px; }
.how, .benefits, .offer, .short-version { background: white; }
.steps { display: grid; max-width: 1120px; margin: 0 auto; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.step, .benefit-card, .sec-item { padding: 28px; }
.step span { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 16px; border-radius: 50%; background: var(--primary-soft); color: var(--primary-dark); font-weight: 850; }
h3 { margin-bottom: 8px; font-size: 19px; }
.step p, .benefit-card p, .sec-item p, .offer-card p, .short-card p, .contact-card p { color: var(--muted); }
.benefit-card, .sec-item, .step, .short-card, .contact-form, .contact-card { box-shadow: 0 14px 35px rgba(16, 32, 51, 0.07); }
.feat-grid { display: grid; max-width: 1120px; margin: 0 auto; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.feat { display: flex; align-items: flex-start; gap: 14px; padding: 18px; background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.12); }
.feat svg { margin-top: 3px; color: var(--primary); }
.feat span { display: block; color: rgba(255,255,255,.68); font-size: 14px; }
.offer-card { max-width: 930px; margin: 0 auto; padding: 44px; text-align: center; box-shadow: 0 18px 45px rgba(16, 32, 51, .08); }
.offer-tag { display: inline-block; margin-bottom: 18px; padding: 7px 14px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); font-weight: 800; font-size: 13px; }
.offer-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; margin: 28px 0; text-align: left; }
.offer-list div { display: flex; align-items: center; gap: 10px; }
.offer-list svg { color: var(--primary-dark); }
.faq-list { max-width: 920px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; }
.faq-q { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 22px 0; border: 0; background: transparent; color: var(--dark); font: inherit; font-weight: 800; text-align: left; cursor: pointer; }
.faq-q span { font-size: 26px; line-height: 1; color: var(--primary-dark); transition: transform .2s; }
.faq-item.open .faq-q span { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 0 22px; color: var(--muted); }
.faq-item.open .faq-a { display: block; }
.contact-layout { display: grid; max-width: 1120px; margin: 0 auto; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 22px; }
.contact-form, .contact-card { padding: 28px; }
.contact-form { display: grid; gap: 16px; }
label { display: grid; gap: 7px; color: var(--dark); font-weight: 750; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; font: inherit; color: var(--dark); background: white; }
textarea { resize: vertical; }
.form-status { min-height: 24px; color: var(--primary-dark); font-weight: 750; }
.contact-card { background: var(--primary-soft); align-self: start; }
.contact-card a { display: flex; align-items: center; gap: 10px; margin: 14px 0; color: var(--primary-dark); font-weight: 800; text-decoration: none; }
.short-card { max-width: 760px; margin: 0 auto; padding: 34px; border-left: 6px solid var(--primary); }
.short-card .sub { margin-bottom: 18px; color: var(--muted); font-size: 14px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.pitch { white-space: pre-line; font-size: 16px; }
.copy-btn { margin-top: 20px; padding: 12px 22px; border: 0; background: var(--dark); color: white; }
footer { padding: 40px 24px; background: var(--darker); color: rgba(255,255,255,.68); text-align: center; }
.footer-logo { justify-content: center; margin-bottom: 12px; }
.footer-copy { margin-top: 12px; }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .38; } }

@media (max-width: 760px) {
  .nav-inner { min-height: 66px; }
  .nav-cta { padding: 9px 14px; font-size: 14px; }
  .logo { font-size: 18px; }
  .hero { min-height: auto; padding-top: 112px; }
  section { padding: 70px 20px; }
  .solution-card, .offer-card, .short-card, .contact-form, .contact-card { padding: 28px 22px; }
  .contact-layout { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}