:root {
  --brand: #4f46e5;
  --brand-dark: #4338ca;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f8fafc;
  --card: #ffffff;
  --ok: #16a34a;
  --err: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(15,23,42,.08), 0 8px 24px rgba(15,23,42,.06);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.55;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--brand); color: #fff; border: 0; border-radius: 10px;
  padding: 11px 20px; font-size: 15px; font-weight: 600; cursor: pointer;
  transition: background .15s; text-decoration: none;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { background: #f1f5f9; }
.btn.sm { padding: 7px 13px; font-size: 13px; }
.btn.danger { background: #fff; color: var(--err); border: 1px solid #fecaca; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin: 14px 0 6px; }
input, textarea, select {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 10px;
  font-size: 15px; font-family: inherit; background: #fff; color: var(--ink);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--brand); border-color: var(--brand); }
textarea { min-height: 110px; resize: vertical; }
.muted { color: var(--muted); }
.err { color: var(--err); font-size: 14px; }
.ok { color: var(--ok); font-size: 14px; }
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: #eef2ff; color: var(--brand); }

/* Auth-Seiten */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: 100%; max-width: 400px; padding: 32px; }
.auth-card h1 { margin: 0 0 4px; font-size: 22px; }
.brand-mark { font-weight: 800; font-size: 20px; color: var(--brand); letter-spacing: -.02em; }

/* Landing */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.hero { text-align: center; padding: 72px 0 40px; }
.hero h1 { font-size: 46px; line-height: 1.1; margin: 0 0 16px; letter-spacing: -.03em; }
.hero p { font-size: 19px; color: var(--muted); max-width: 620px; margin: 0 auto 28px; }
.features { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; padding: 40px 0; }
.feature { padding: 22px; }
.feature h3 { margin: 6px 0; font-size: 17px; }
.feature p { color: var(--muted); font-size: 14px; margin: 0; }
.pricing { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; padding: 20px 0 60px; }
.price { padding: 24px; text-align: center; }
.price .amount { font-size: 30px; font-weight: 800; margin: 8px 0; }
.price ul { list-style: none; padding: 0; margin: 14px 0; font-size: 14px; color: var(--muted); }
.price li { padding: 4px 0; }
footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 13px; text-align: center; }
@media (max-width: 800px) {
  .features, .pricing { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
}