/* RxVPN landing — marka renkleri: bg #071712, accent #34D399, ink #EEF7F2 */
:root {
  --bg: #071712;
  --bg-alt: #0b211a;
  --surface: #0e2a22;
  --green: #34d399;
  --green-2: #10b981;
  --ink: #eef7f2;
  --muted: #9fc4b6;
  --radius: 18px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .4em; }
.accent { color: var(--green); }
.muted { color: var(--muted); }
.center { text-align: center; }

/* Nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--maxw); margin: 0 auto; padding: 20px 24px;
}
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: var(--muted); font-weight: 600; }
.nav-links a:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px;
  font-weight: 700; transition: transform .15s ease, background .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--green); color: var(--bg);
  box-shadow: 0 8px 24px rgba(52, 211, 153, .25);
}
.btn-primary:hover { background: #4ee0ab; }
.btn-ghost { border: 1.5px solid rgba(159, 196, 182, .35); color: var(--ink); }
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

/* Hero */
.hero {
  max-width: var(--maxw); margin: 0 auto; padding: 60px 24px 80px;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 46ch; }
.cta-row { display: flex; gap: 14px; margin: 26px 0 14px; flex-wrap: wrap; }
.micro { font-size: .9rem; color: var(--muted); }
.hero-anim {
  display: flex; align-items: center; justify-content: center;
  min-height: 280px;
  filter: drop-shadow(0 20px 60px rgba(52, 211, 153, .18));
}
.hero-anim svg, .hero-anim img { max-width: 100%; height: auto; }

/* Sections */
.section { max-width: var(--maxw); margin: 0 auto; padding: 72px 24px; }
.section.alt { background: var(--bg-alt); max-width: none; }
.section.alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); text-align: center; margin-bottom: 36px; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid rgba(52, 211, 153, .12);
  border-radius: var(--radius); padding: 26px 22px; transition: transform .18s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(52, 211, 153, .4); }
.card .ic { font-size: 2rem; margin-bottom: 10px; }
.card h3 { font-size: 1.15rem; }
.card p { color: var(--muted); font-size: .98rem; margin: 0; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.steps li { display: flex; gap: 16px; align-items: flex-start; }
.steps span {
  flex: none; width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800;
  background: var(--green); color: var(--bg);
}
.steps h3 { font-size: 1.1rem; margin-bottom: 2px; }
.steps p { color: var(--muted); margin: 0; }

/* Privacy */
.privacy { max-width: 760px; margin: 0 auto; text-align: center; }
.privacy p { color: var(--muted); font-size: 1.05rem; }
.privacy strong { color: var(--ink); }

/* Download */
.downloads { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.dl {
  display: flex; align-items: center; gap: 14px; min-width: 240px;
  background: var(--surface); border: 1px solid rgba(52, 211, 153, .18);
  border-radius: var(--radius); padding: 18px 22px; transition: border-color .2s ease, transform .18s ease;
}
.dl:hover { border-color: var(--green); transform: translateY(-2px); }
.dl-ic { font-size: 1.8rem; }
.dl strong { display: block; }
.dl span { color: var(--muted); font-size: .9rem; }

/* Footer */
.footer {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  padding: 40px 24px; color: var(--muted); border-top: 1px solid rgba(159, 196, 182, .12);
}
.footer p { margin: 0; font-size: .95rem; }

/* Responsive */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 30px; }
  .hero .lead { margin-left: auto; margin-right: auto; }
  .cta-row { justify-content: center; }
  .hero-anim { order: -1; min-height: 220px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .nav-links a:not(.btn) { display: none; }
  .grid { grid-template-columns: 1fr; }
}