:root {
  --blue-900: #0d2b57;
  --blue-700: #1356c4;
  --blue-600: #1565d8;
  --blue-500: #2979ff;
  --blue-100: #dbe7ff;
  --blue-50: #eef4ff;
  --ink: #16202e;
  --ink-soft: #45526502;
  --text: #2b3645;
  --muted: #5d6b7e;
  --line: #e3e9f2;
  --surface: #ffffff;
  --bg: #f6f8fc;
  --radius: 18px;
  --shadow-sm: 0 1px 2px rgba(16, 38, 76, .06), 0 2px 8px rgba(16, 38, 76, .05);
  --shadow-md: 0 8px 28px rgba(19, 86, 196, .14);
  --maxw: 980px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(246, 248, 252, .82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-700));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 17px;
  box-shadow: var(--shadow-sm);
}
.brand .name { font-size: 18px; letter-spacing: -.2px; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--muted); font-weight: 500; font-size: 15px; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ---------- Hero ---------- */
.hero { padding: 84px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .4px;
  color: var(--blue-700); background: var(--blue-100);
  padding: 6px 13px; border-radius: 999px; text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 52px); line-height: 1.08; letter-spacing: -1px;
  color: var(--ink); margin: 18px 0 16px; font-weight: 800;
}
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0 0 30px; max-width: 30em; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 12px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--blue-600); color: #fff; box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--blue-700); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { border-color: var(--blue-100); }

/* phone mock */
.phone {
  margin: 0 auto; width: 248px; height: 506px; border-radius: 36px;
  background: #0d2b57; padding: 11px;
  box-shadow: 0 30px 60px rgba(13, 43, 87, .28); position: relative;
}
.phone::before {
  content: ""; position: absolute; top: 18px; left: 50%; transform: translateX(-50%);
  width: 78px; height: 6px; border-radius: 4px; background: rgba(255,255,255,.25); z-index: 3;
}
.screen {
  width: 100%; height: 100%; border-radius: 27px; background: var(--bg);
  overflow: hidden; display: flex; flex-direction: column;
}
.screen-top { background: linear-gradient(135deg, var(--blue-600), var(--blue-700)); color: #fff; padding: 38px 18px 16px; }
.screen-top .t-title { font-weight: 700; font-size: 17px; }
.screen-top .t-sub { font-size: 12px; opacity: .85; }
.screen-body { flex: 1; padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.card-row {
  background: #fff; border-radius: 12px; padding: 11px 12px; box-shadow: var(--shadow-sm);
  display: flex; align-items: center; gap: 10px;
}
.card-row .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--blue-500); flex: none; }
.card-row .ln { flex: 1; }
.card-row .l1 { height: 8px; width: 70%; background: #dde5f1; border-radius: 4px; margin-bottom: 6px; }
.card-row .l2 { height: 7px; width: 45%; background: #eaf0f9; border-radius: 4px; }
.card-row .pill { font-size: 10px; font-weight: 700; color: var(--blue-700); background: var(--blue-50); padding: 3px 8px; border-radius: 999px; }
.tabbar { display: flex; justify-content: space-around; padding: 10px 6px 14px; background: #fff; border-top: 1px solid var(--line); }
.tabbar .tab { font-size: 10px; color: var(--muted); display: flex; flex-direction: column; align-items: center; gap: 4px; }
.tabbar .tab.active { color: var(--blue-600); font-weight: 700; }
.tabbar .ico { width: 18px; height: 18px; border-radius: 6px; background: #e3e9f2; }
.tabbar .tab.active .ico { background: var(--blue-500); }

/* ---------- Features ---------- */
section.block { padding: 56px 0; }
.section-head { text-align: center; max-width: 36em; margin: 0 auto 42px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 34px); color: var(--ink); letter-spacing: -.6px; margin: 0 0 10px; }
.section-head p { color: var(--muted); font-size: 17px; margin: 0; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm);
}
.feature .ficon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--blue-50); color: var(--blue-700); font-size: 22px; margin-bottom: 14px;
}
.feature h3 { margin: 0 0 6px; font-size: 18px; color: var(--ink); }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- CTA band ---------- */
.band {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-900));
  color: #fff; border-radius: 24px; padding: 48px 40px; text-align: center;
  box-shadow: var(--shadow-md);
}
.band h2 { font-size: 28px; margin: 0 0 10px; letter-spacing: -.5px; }
.band p { margin: 0 0 24px; opacity: .9; font-size: 17px; }
.band .btn-primary { background: #fff; color: var(--blue-700); }
.band .btn-primary:hover { background: var(--blue-50); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; margin-top: 40px; color: var(--muted); font-size: 14px; }
.foot-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; align-items: center; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); }

/* ---------- Legal pages ---------- */
.legal { background: var(--surface); }
.legal .wrap { max-width: 820px; padding-top: 48px; padding-bottom: 64px; }
.legal h1 { font-size: 34px; color: var(--ink); letter-spacing: -.5px; margin: 0 0 6px; }
.legal .effective { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
.legal h2, .legal strong.h { display: block; font-size: 20px; color: var(--ink); margin: 32px 0 8px; }
.legal p { margin: 0 0 14px; }
.legal ul { margin: 0 0 16px; padding-left: 22px; }
.legal li { margin-bottom: 6px; }
.legal hr { border: none; border-top: 1px solid var(--line); margin: 32px 0; }
.legal .gen { font-size: 13px; color: var(--muted); }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .phone { order: -1; }
  .features { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}