:root {
  --bg: #1b1b1b;
  --surface: #242424;
  --surface-hi: #2e2e2e;
  --long: #00a76a;
  --short: #ef2856;
  --text: #f5f5f5;
  --dim: #9a9a9a;
  --radius: 20px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  max-width: 960px;
  margin: 0 auto;
}
.brand { font-weight: 800; font-size: 20px; letter-spacing: -0.3px; }
.brand .lock { color: var(--long); }
nav a { color: var(--dim); text-decoration: none; font-size: 14px; }
nav a:hover { color: var(--text); }

/* hero */
.hero { text-align: center; padding: 72px 0 56px; }
.hero h1 {
  font-size: clamp(38px, 7vw, 66px);
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.02;
}
.hero h1 .accent { color: var(--long); }
.hero p.sub {
  color: var(--dim);
  font-size: clamp(17px, 2.4vw, 21px);
  max-width: 620px;
  margin: 22px auto 0;
}

/* buttons */
.cta-row { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 16px;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn-primary { background: var(--long); color: #000; }
.btn-ghost { border-color: #ffffff26; color: var(--text); }
.btn:hover { transform: translateY(-1px); }

/* long/short demo */
.demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 560px;
  margin: 56px auto 0;
}
.demo .pill {
  border-radius: var(--radius);
  padding: 26px 22px;
  color: #000;
  font-weight: 900;
  text-align: left;
}
.demo .pill.long { background: var(--long); }
.demo .pill.short { background: var(--short); }
.demo .pill span { display: block; font-size: 13px; font-weight: 700; opacity: 0.8; }
.demo .pill strong { font-size: 22px; }

/* sections */
section { padding: 60px 0; }
h2 {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.6px;
  margin-bottom: 8px;
}
.section-sub { color: var(--dim); margin-bottom: 34px; max-width: 560px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  background: var(--surface);
  border: 1px solid #ffffff12;
  border-radius: var(--radius);
  padding: 26px;
}
.card .ico { font-size: 26px; }
.card h3 { margin: 14px 0 6px; font-size: 18px; }
.card p { color: var(--dim); font-size: 15px; }

/* steps */
.steps { counter-reset: step; display: grid; gap: 14px; max-width: 640px; }
.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid #ffffff12;
  border-radius: 16px;
  padding: 20px 22px;
}
.step .n {
  flex: none;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--long);
  color: #000;
  font-weight: 900;
  display: grid; place-items: center;
}
.step h3 { font-size: 16px; margin-bottom: 2px; }
.step p { color: var(--dim); font-size: 14px; }

/* footer */
footer {
  border-top: 1px solid #ffffff14;
  padding: 40px 0;
  margin-top: 40px;
  text-align: center;
  color: var(--dim);
  font-size: 14px;
}
footer a { color: var(--dim); text-decoration: none; margin: 0 10px; }
footer a:hover { color: var(--text); }
footer .brand { display: block; margin-bottom: 14px; color: var(--text); }

/* legal pages */
.legal { max-width: 720px; padding: 40px 0 60px; }
.legal h1 { font-size: 34px; font-weight: 900; letter-spacing: -1px; }
.legal .updated { color: var(--dim); margin: 8px 0 30px; font-size: 14px; }
.legal h2 { font-size: 20px; margin: 28px 0 8px; }
.legal p, .legal li { color: #d5d5d5; margin-bottom: 10px; }
.legal ul { padding-left: 22px; }
.legal a { color: var(--long); }
.back { display: inline-block; margin-bottom: 24px; color: var(--dim); text-decoration: none; }
.back:hover { color: var(--text); }