/* Minimal, modern look */
:root {
  --bg: #0b1220;
  --panel: #111827;
  --muted: #94a3b8;
  --text: #e5e7eb;
  --brand: #00a389;
  --brand-2: #27c2a8;
  --ring: rgba(39, 194, 168, 0.35);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text); background: radial-gradient(1200px 800px at 20% -10%, #10203a 0%, #0b1220 50%, #0b1220 100%);
}
.page { min-height: 100%; display: grid; grid-template-rows: auto 1fr auto; }
.hero { padding: 56px 24px 16px; text-align: center; }
.brand { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.logo { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); display: grid; place-items: center; font-weight: 800; font-size: 22px; color: white; box-shadow: 0 10px 30px var(--ring); }
.title { font-weight: 700; letter-spacing: 0.4px; }
.hero h1 { margin: 6px 0 8px; font-size: clamp(22px, 2.6vw, 36px); }
.sub { margin: 0; color: var(--muted); }
.content { padding: 16px; max-width: 880px; margin: 0 auto; display: grid; gap: 18px; grid-template-columns: 1fr; }
.card { background: rgba(17,24,39,0.8); border: 1px solid rgba(255,255,255,0.06); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); border-radius: 16px; padding: 22px; box-shadow: 0 10px 40px rgba(0,0,0,0.35); }
.card h2, .card h3 { margin-top: 0; }
.download { text-align: center; padding: 22px; }
.download .btn { min-width: 240px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 16px 22px; border-radius: 12px; text-decoration: none; color: var(--text); border: 1px solid rgba(255,255,255,0.12); background: #0f172a; transition: transform 0.05s ease, box-shadow 0.2s, background 0.2s, border-color 0.2s; font-weight: 600; font-size: 17px; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 25px rgba(0,0,0,0.35); border-color: rgba(255,255,255,0.2); }
.btn.primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #071a17; border: none; box-shadow: 0 12px 30px var(--ring); }
.btn.primary:hover { filter: brightness(1.05); }
.hint { display: block; color: var(--muted); margin-top: 8px; }
.divider { display: flex; align-items: center; gap: 12px; color: var(--muted); margin: 18px 0; }
.divider::before, .divider::after { content: ''; height: 1px; background: rgba(255,255,255,0.12); flex: 1; }
.tips ol { margin: 0 0 8px 20px; }
.tips .foot { color: var(--muted); margin: 8px 0 0; }
.footer { text-align: center; padding: 24px; color: var(--muted); }
@media (max-width: 520px) { .download .btn { width: 100%; } }
/* Mindig egy hasábos elrendezés */
@media (min-width: 800px) { .content { grid-template-columns: 1fr; } .tips { height: auto; } }