:root {
  --bg: #ffffff;
  --text: #0c0c0e;
  --muted: #60646c;
  --card: #ffffff;
  --border: #e6e6ea;
  --primary: #e0457b;
  --primary-ink: #ffffff;
  --shadow: 0 10px 40px rgba(224, 69, 123, 0.12);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --text: #f5f5f7;
    --muted: #b0b4ba;
    --card: #161618;
    --border: #2a2b2f;
    --primary: #ff6fa5;
    --primary-ink: #1a0a12;
    --shadow: 0 10px 40px rgba(255, 111, 165, 0.10);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: 100%; max-width: 880px; margin: 0 auto; padding: 0 24px; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; }
.brand { font-weight: 700; font-size: 20px; color: var(--text); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.nav-links a { color: var(--muted); font-size: 15px; margin-left: 20px; }

.hero { text-align: center; padding: 64px 0 40px; }
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p { font-size: clamp(17px, 2.4vw, 20px); color: var(--muted); max-width: 620px; margin: 0 auto 30px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--primary); color: var(--primary-ink);
  padding: 14px 24px; border-radius: 14px; font-weight: 600; font-size: 16px;
  box-shadow: var(--shadow);
}
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn.secondary { background: var(--card); color: var(--text); border: 1px solid var(--border); box-shadow: none; }
.btn svg { width: 18px; height: 18px; fill: currentColor; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 28px 0 8px; }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 20px; padding: 24px;
}
.card .emoji { font-size: 28px; }
.card h3 { margin: 12px 0 6px; font-size: 18px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.privacy-line { text-align: center; color: var(--muted); font-size: 17px; max-width: 640px; margin: 44px auto 0; padding: 0 8px; }

footer { border-top: 1px solid var(--border); margin-top: 64px; padding: 32px 0 56px; }
footer .links { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 14px; }
footer .links a { color: var(--muted); font-size: 15px; }
footer .tagline { color: var(--muted); font-size: 14px; margin: 0; }

.legal { padding: 28px 0 8px; }
.legal h1 { font-size: clamp(28px, 5vw, 40px); letter-spacing: -0.02em; margin: 0 0 6px; }
.legal .updated { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
.legal .intro { font-size: 17px; margin: 0 0 30px; }
.legal h2 { font-size: 21px; letter-spacing: -0.01em; margin: 34px 0 10px; }
.legal p { color: var(--muted); margin: 0 0 12px; }
.lang-switch { display: flex; gap: 14px; margin-bottom: 18px; font-size: 14px; }
.lang-switch a { color: var(--muted); }
.lang-switch .lang-active { color: var(--text); font-weight: 700; }