:root {
  --bg: #f6f8fc;
  --text: #111827;
  --muted: #667085;
  --line: #e5e7eb;
  --card: #ffffff;
  --primary: #1d4ed8;
  --primary-2: #0f172a;
  --accent: #eef4ff;
  --success: #0f9d58;
  --shadow: 0 18px 50px rgba(2, 6, 23, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1140px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(17,24,39,.06);
}
.nav {
  min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { font-weight: 800; font-size: 1.1rem; }
nav { display: flex; gap: 20px; flex-wrap: wrap; }
nav a { color: var(--muted); font-weight: 600; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 22px; border-radius: 999px; font-weight: 700; border: 1px solid transparent;
  transition: .2s ease; cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow); }
.btn-secondary { background: #fff; border-color: var(--line); }
.btn-dark { background: var(--primary-2); color: #fff; }
.hero {
  padding: 72px 0 54px;
  background: radial-gradient(circle at top right, rgba(29,78,216,.15), transparent 30%), linear-gradient(180deg, #f8fbff 0%, #fff 100%);
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center;
}
.badge, .eyebrow {
  display: inline-block; background: var(--accent); color: var(--primary); border: 1px solid #dbe7ff;
  padding: 8px 14px; border-radius: 999px; font-weight: 700; font-size: .86rem;
}
.hero h1 { font-size: clamp(2.5rem, 5vw, 4.3rem); line-height: 1.02; margin: 18px 0 16px; }
.lead { font-size: 1.08rem; color: var(--muted); max-width: 650px; }
.price-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 26px 0 18px; }
.old-price { color: #98a2b3; text-decoration: line-through; font-weight: 700; }
.price { font-size: 2rem; font-weight: 900; }
.save { color: var(--success); background: #ecfdf3; padding: 8px 12px; border-radius: 999px; font-weight: 700; }
.hero-points { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 10px; }
.hero-points li::before, .check-list li::before { content: '✓'; margin-right: 10px; color: var(--primary); font-weight: 900; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.device-card {
  position: absolute; width: 320px; height: 460px; border-radius: 30px; box-shadow: var(--shadow);
}
.device-card.front {
  background: linear-gradient(180deg, #1f2937, #0f172a); right: 52px; top: 20px; border: 10px solid #111827;
}
.device-card.back {
  background: linear-gradient(180deg, #dbeafe, #93c5fd); left: 34px; bottom: 35px; transform: rotate(-10deg);
}
.tablet-screen {
  width: 100%; height: 100%; border-radius: 20px;
  background: linear-gradient(145deg, #eff6ff, #bfdbfe 55%, #60a5fa);
  display: flex; align-items: flex-end; justify-content: center; padding: 28px;
}
.screen-ui {
  background: rgba(255,255,255,.82); backdrop-filter: blur(10px); width: 100%; border-radius: 24px; padding: 22px;
}
.screen-ui span { display: block; color: var(--muted); font-weight: 700; margin-bottom: 4px; }
.screen-ui strong { font-size: 2rem; line-height: 1.1; }
.floating {
  position: absolute; background: #fff; border-radius: 18px; box-shadow: var(--shadow); padding: 14px 16px;
  display: grid; gap: 4px; min-width: 120px;
}
.floating strong { font-size: 1rem; }
.floating span { color: var(--muted); font-size: .9rem; }
.one { top: 30px; left: 0; }
.two { right: 0; bottom: 115px; }
.three { left: 40px; bottom: 0; }
.trust-strip {
  padding: 18px 0; border-top: 1px solid #eef2f7; border-bottom: 1px solid #eef2f7; background: #fff;
}
.trust-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; text-align: center; color: var(--muted); font-weight: 700;
}
.section { padding: 80px 0; }
.section.alt { background: var(--bg); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 36px; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); margin: 14px 0 10px; line-height: 1.1; }
.section-head p { color: var(--muted); }
.features-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 20px;
}
.feature-card, .benefit-box, .spec-row, .box-item, blockquote, .faq-list details, .order-box {
  background: var(--card); border: 1px solid #edf0f5; border-radius: 24px; box-shadow: var(--shadow);
}
.feature-card { padding: 26px; }
.feature-card h3 { margin-top: 0; margin-bottom: 10px; }
.feature-card p { margin: 0; color: var(--muted); }
.split {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 26px; align-items: start;
}
.check-list { list-style: none; padding: 0; display: grid; gap: 10px; }
.benefit-panel { display: grid; gap: 16px; }
.benefit-box { padding: 22px; }
.benefit-box span { display: block; margin-top: 8px; color: var(--muted); }
.box-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 16px;
}
.box-item {
  padding: 22px; text-align: center; font-weight: 800; background: linear-gradient(180deg, #ffffff, #f8fbff);
}
.specs-grid {
  display: grid; grid-template-columns: repeat(2,1fr); gap: 16px;
}
.spec-row {
  padding: 20px 22px; display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
.spec-row span { color: var(--muted); }
.testimonials-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
blockquote { margin: 0; padding: 28px; font-size: 1.05rem; }
.faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 16px; }
.faq-list details { padding: 18px 20px; }
.faq-list summary { font-weight: 800; cursor: pointer; }
.order { padding: 50px 0 90px; background: linear-gradient(180deg, #fff, #f8fbff); }
.order-box {
  padding: 32px; display: flex; gap: 20px; justify-content: space-between; align-items: center;
}
.order-box h2 { margin: 12px 0 8px; }
.order-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.footer { padding: 32px 0 44px; border-top: 1px solid #eef2f7; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; align-items: center; color: var(--muted); }
.footer p { margin: 0; }
@media (max-width: 960px) {
  nav { display: none; }
  .hero-grid, .split, .features-grid, .specs-grid, .testimonials-grid, .trust-grid, .box-grid { grid-template-columns: 1fr 1fr; }
  .hero-visual { min-height: 460px; }
  .device-card.front { right: 10px; width: 280px; height: 400px; }
  .device-card.back { left: 20px; width: 260px; height: 380px; }
  .order-box, .footer-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 680px) {
  .hero { padding-top: 48px; }
  .hero-grid, .split, .features-grid, .specs-grid, .testimonials-grid, .trust-grid, .box-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; min-height: 390px; }
  .device-card.front { width: 220px; height: 320px; }
  .device-card.back { width: 205px; height: 300px; bottom: 20px; }
  .one, .two, .three { transform: scale(.92); }
  .one { left: 0; }
  .two { right: 0; bottom: 90px; }
  .three { left: 12px; }
}