:root {
  --blue: #1e56f0;
  --blue-dark: #1642bd;
  --blue-light: #eef2fe;
  --ink: #16213e;
  --ink-soft: #4a5578;
  --line: #e3e8f4;
  --bg: #ffffff;
  --bg-soft: #f7f9fe;
  --radius: 14px;
  --shadow: 0 6px 30px rgba(22, 33, 62, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  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: 10px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 1.15rem; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.nav-links { display: flex; gap: 26px; align-items: center; list-style: none; }
.nav-links a { text-decoration: none; color: var(--ink-soft); font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover { color: var(--blue); }
.nav-links a.btn { color: #fff; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--ink); cursor: pointer; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 10px;
  background: var(--blue); color: #fff; text-decoration: none; font-weight: 600;
  border: none; cursor: pointer; font-size: 0.98rem;
}
.btn:hover { background: var(--blue-dark); }
.btn.ghost { background: transparent; color: var(--blue); border: 1.5px solid var(--blue); }
.btn.ghost:hover { background: var(--blue-light); }

/* ---------- hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--blue) 0%, #3f6ef5 55%, #6c8cf8 100%);
  color: #fff; padding: 90px 0 70px; text-align: center;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.2; margin-bottom: 18px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 1.15rem; max-width: 640px; margin: 0 auto 34px; opacity: 0.92; }
.hero .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .btn { background: #fff; color: var(--blue); }
.hero .btn:hover { background: var(--blue-light); }
.hero .btn.ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }

/* ---------- sections ---------- */
section { padding: 76px 0; }
section.alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: 2rem; letter-spacing: -0.01em; margin-bottom: 12px; }
.section-head p { color: var(--ink-soft); }
.eyebrow { color: var(--blue); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; display: block; margin-bottom: 10px; }

/* ---------- features ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
}
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--blue-light);
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 16px;
}
.card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; padding: 26px 24px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%; background: var(--blue); color: #fff;
  font-weight: 700; margin-bottom: 14px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 6px; }
.step p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- screenshots ---------- */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; justify-items: center; }
.phone {
  width: 100%; max-width: 260px; aspect-ratio: 390 / 780; overflow: hidden;
  border-radius: 26px; border: 8px solid var(--ink); box-shadow: var(--shadow); background: #fff;
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.shot-caption { text-align: center; margin-top: 12px; color: var(--ink-soft); font-size: 0.9rem; }
.desktop-shot { margin-top: 44px; text-align: center; }
.desktop-shot img {
  max-width: 100%; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow);
}

/* ---------- about / contact ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: start; }
.about-grid h2 { font-size: 1.8rem; margin-bottom: 14px; }
.about-grid p { color: var(--ink-soft); margin-bottom: 14px; }
.info-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.info-box h3 { margin-bottom: 14px; font-size: 1.05rem; }
.info-box ul { list-style: none; }
.info-box li { padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 0.95rem; }
.info-box li:last-child { border-bottom: none; }
.info-box li strong { color: var(--ink); display: inline-block; min-width: 120px; }

/* ---------- legal pages ---------- */
.legal { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.legal h1 { font-size: 2rem; margin-bottom: 6px; }
.legal .updated { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 34px; }
.legal h2 { font-size: 1.25rem; margin: 34px 0 10px; }
.legal p, .legal li { color: var(--ink-soft); font-size: 0.97rem; }
.legal ul { padding-left: 22px; margin: 10px 0; }
.legal table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.92rem; }
.legal th, .legal td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; color: var(--ink-soft); }
.legal th { background: var(--bg-soft); color: var(--ink); }

/* ---------- faq ---------- */
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; margin-bottom: 14px; padding: 20px 24px; }
.faq-item h3 { font-size: 1.02rem; margin-bottom: 6px; }
.faq-item p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #aeb6d3; padding: 44px 0 30px; font-size: 0.92rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; margin-bottom: 26px; }
.site-footer a { color: #dfe4f5; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-note { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 20px; font-size: 0.85rem; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .grid, .steps, .shots { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .grid, .steps, .shots { grid-template-columns: 1fr; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 18px 24px; gap: 16px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  section { padding: 56px 0; }
}