:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f6f7f8;
  --text: #151317;
  --text-muted: #5f6368;
  --accent: #15803d;
  --accent-text: #ffffff;
  --border: #e3e3e3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111315;
    --surface: #181b1e;
    --text: #f1f3f4;
    --text-muted: #9aa3ab;
    --accent: #2fb96a;
    --accent-text: #08130c;
    --border: #2a2f34;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  line-height: 1.55;
}

.wrap { max-width: 980px; margin: 0 auto; padding-inline: 1.25rem; }
.accent { color: var(--accent); }

h1, h2, h3, p { margin: 0; }

.top { border-bottom: 1px solid var(--border); }
.top__in { display: flex; align-items: center; justify-content: space-between; padding-block: 0.8rem; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.08); }
.btn:focus-visible { outline: 3px solid var(--text); outline-offset: 2px; }
.btn--sm { padding: 0.45rem 1rem; font-size: 0.95rem; }

.hero { padding-block: 4rem 3rem; text-align: center; }
.hero h1 { font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.1; letter-spacing: -0.02em; }
.lead { max-width: 640px; margin: 1.1rem auto 0; color: var(--text-muted); font-size: 1.15rem; }
.privacy { margin-top: 0.6rem; color: var(--text-muted); font-size: 0.95rem; }
.cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.9rem 1.2rem; margin: 2rem 0 3rem; }

.shot {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.features, .steps { padding-block: 3rem; }
.features h2, .steps h2, .final h2 { text-align: center; font-size: clamp(1.5rem, 4vw, 2rem); margin-bottom: 2rem; }

.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.grid li { padding: 1.25rem; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.grid h3 { font-size: 1.1rem; margin-bottom: 0.35rem; }
.grid p, .steps p { color: var(--text-muted); }

.steps ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.steps li { display: flex; gap: 0.9rem; align-items: flex-start; }
.steps h3 { font-size: 1.1rem; margin-bottom: 0.2rem; }

.num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
}

.final { padding-block: 3rem 4.5rem; text-align: center; }

.foot { border-top: 1px solid var(--border); padding-block: 1.5rem; color: var(--text-muted); font-size: 0.9rem; text-align: center; }