:root {
  --bg: #ffffff;
  --bg2: #f5f5f7;
  --text: #1d1d1f;
  --text2: #6e6e73;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --border: #d2d2d7;
  --radius: 12px;
  --max-w: 860px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg2: #1c1c1e;
    --text: #f5f5f7;
    --text2: #98989d;
    --accent: #2997ff;
    --accent-hover: #47a8ff;
    --border: #3a3a3c;
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
}

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

@media (prefers-color-scheme: dark) {
  nav { background: rgba(0,0,0,0.85); }
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  gap: 16px;
}

.nav-logo {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text2);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--accent); }

/* MAIN */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* HERO */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero p {
  font-size: clamp(18px, 2.5vw, 22px);
  color: var(--text2);
  max-width: 520px;
  margin: 0 auto 36px;
}

.btn {
  display: inline-block;
  background: #121212;
  color: #fff;
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 980px;
  font-size: 17px;
  font-weight: 600;
  transition: background 0.15s;
}

.btn:hover { background: var(--accent-hover); }

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin: 60px 0;
}

.feature-card {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.feature-card .icon { font-size: 32px; margin-bottom: 12px; }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { color: var(--text2); font-size: 15px; }

/* PROSE (legal pages) */
.prose h1 { font-size: 32px; font-weight: 700; margin-bottom: 8px; }
.prose .subtitle { color: var(--text2); font-size: 15px; margin-bottom: 40px; }
.prose h2 { font-size: 20px; font-weight: 600; margin: 32px 0 10px; }
.prose p, .prose li { color: var(--text2); font-size: 16px; margin-bottom: 12px; }
.prose ul { padding-left: 20px; }
.prose a { color: var(--accent); }

/* FAQ */
details {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

details summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 17px;
}

details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; font-size: 22px; color: var(--text2); }
details[open] summary::after { content: "−"; }

details p {
  color: var(--text2);
  padding-top: 12px;
  font-size: 16px;
}

/* CONTACT FORM */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 520px;
}

.contact-form label { font-size: 15px; font-weight: 500; margin-bottom: 4px; display: block; }

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg2);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.15s;
  -webkit-appearance: none;
}

.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-color: var(--accent); }

.contact-form textarea { resize: vertical; min-height: 120px; }

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--text2);
  font-size: 14px;
}

footer a { color: var(--text2); text-decoration: none; margin: 0 8px; }
footer a:hover { color: var(--accent); }
footer .footer-links { margin-bottom: 8px; }