:root {
  --canvas: #f7f9fb;
  --card: #ffffff;
  --text: #0f1721;
  --text-2: #5b6572;
  --blue: #38b6f1;
  --blue-deep: #1993d3;
  --ink: #10304b;
  --radius: 22px;
  --max: 1080px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background: var(--canvas);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 249, 251, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(15, 23, 33, 0.06);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand span { font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.nav a.link { color: var(--text-2); text-decoration: none; font-size: 15px; font-weight: 500; margin-left: 22px; }
.nav a.link:hover { color: var(--text); }

.hero { text-align: center; padding: 84px 0 40px; }
.hero img.mark { width: 96px; height: 96px; border-radius: 24px; box-shadow: 0 18px 44px rgba(56, 182, 241, 0.35); }
.hero h1 {
  font-size: clamp(38px, 6vw, 62px);
  line-height: 1.08; letter-spacing: -0.03em; font-weight: 800;
  margin: 28px auto 18px; max-width: 720px;
}
.hero h1 em { font-style: normal; color: var(--blue-deep); }
.hero p.sub { font-size: clamp(17px, 2.4vw, 21px); color: var(--text-2); max-width: 560px; margin: 0 auto 34px; }
.cta {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--text); color: #fff; text-decoration: none;
  font-weight: 700; font-size: 17px;
  padding: 16px 30px; border-radius: 999px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(15, 23, 33, 0.18); }
.cta.small { padding: 11px 22px; font-size: 15px; }
.hero .note { margin-top: 14px; font-size: 13px; color: var(--text-2); }

.banner { margin: 46px auto 0; max-width: 880px; }
.banner img { width: 100%; border-radius: var(--radius); box-shadow: 0 30px 70px rgba(25, 147, 211, 0.22); }

.features { padding: 84px 0; }
.features h2, .how h2 { font-size: 34px; letter-spacing: -0.02em; text-align: center; margin-bottom: 12px; }
.features p.lead, .how p.lead { text-align: center; color: var(--text-2); max-width: 560px; margin: 0 auto 46px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.card {
  background: var(--card); border-radius: var(--radius); padding: 28px;
  box-shadow: 0 2px 14px rgba(15, 23, 33, 0.05);
}
.card .icon {
  width: 44px; height: 44px; border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(56, 182, 241, 0.14); font-size: 21px; margin-bottom: 14px;
}
.card h3 { font-size: 17px; margin-bottom: 6px; letter-spacing: -0.01em; }
.card p { font-size: 14.5px; color: var(--text-2); }

.how { padding: 10px 0 90px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; counter-reset: step; }
.step { background: var(--card); border-radius: var(--radius); padding: 28px; box-shadow: 0 2px 14px rgba(15,23,33,0.05); }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-flex; width: 30px; height: 30px; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 700; font-size: 15px;
  align-items: center; justify-content: center; margin-bottom: 12px;
}
.step h3 { font-size: 16px; margin-bottom: 5px; }
.step p { font-size: 14px; color: var(--text-2); }

.closer { text-align: center; padding: 30px 0 100px; }
.closer .panel {
  background: linear-gradient(135deg, #4fc3f7, #1993d3);
  border-radius: 28px; padding: 64px 30px; color: #fff;
}
.closer h2 { font-size: 32px; letter-spacing: -0.02em; margin-bottom: 10px; }
.closer p { opacity: 0.9; margin-bottom: 28px; }
.closer .cta { background: #fff; color: var(--ink); }

footer { border-top: 1px solid rgba(15, 23, 33, 0.07); padding: 36px 0 46px; }
.foot { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.foot .brand img { width: 26px; height: 26px; border-radius: 7px; }
.foot .brand span { font-size: 16px; }
.foot nav a { color: var(--text-2); text-decoration: none; font-size: 14px; margin-left: 18px; }
.foot nav a:hover { color: var(--text); }
.foot .fine { width: 100%; font-size: 12.5px; color: var(--text-2); margin-top: 14px; }

/* Legal pages */
.legal { max-width: 760px; margin: 0 auto; padding: 60px 24px 90px; }
.legal h1 { font-size: 36px; letter-spacing: -0.02em; margin-bottom: 6px; }
.legal .updated { color: var(--text-2); font-size: 14px; margin-bottom: 36px; }
.legal h2 { font-size: 21px; margin: 34px 0 10px; letter-spacing: -0.01em; }
.legal p, .legal li { font-size: 15.5px; color: #2a3340; margin-bottom: 10px; }
.legal ul { padding-left: 22px; margin-bottom: 12px; }
.legal a { color: var(--blue-deep); }

@media (max-width: 720px) {
  .nav a.link { display: none; }
}

@media (prefers-color-scheme: dark) {
  :root { --canvas: #0e1116; --card: #171b22; --text: #f2f5f8; --text-2: #98a2ae; }
  header { background: rgba(14, 17, 22, 0.85); border-bottom-color: rgba(255,255,255,0.06); }
  .cta { background: #f2f5f8; color: #10304b; }
  .closer .cta { background: #fff; color: var(--ink); }
  .legal p, .legal li { color: #c4ccd6; }
  footer { border-top-color: rgba(255,255,255,0.08); }
}