:root{
  --bg0:#070A10;
  --bg1:#0C1B2E;
  --text:#F4F7FF;
  --muted:rgba(244,247,255,.72);
  --card:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.14);
  --shadow:0 18px 50px rgba(0,0,0,.55);
  --radius:18px;
  --accent:#5AC8FA;
  --accent2:#2D7DFF;
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 20% 10%, rgba(45,125,255,.35), transparent 65%),
    radial-gradient(900px 600px at 70% 30%, rgba(90,200,250,.22), transparent 70%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

/* ===== TOP BAR ===== */

.topbar{
  max-width:1060px;
  margin:18px auto 0;
  padding:12px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(0,0,0,.35);
  backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
}

.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}

.logo{
  width:28px;
  height:28px;
  border-radius:8px;
  background:linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow:0 10px 22px rgba(45,125,255,.35);
}

.brandname{
  font-size:1.2rem;
  font-weight:700;
  letter-spacing:.2px;
}

.theme-toggle{
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--text);
  cursor:pointer;
  font-weight:600;
}

/* ===== HERO ===== */

.hero{
  max-width:1060px;
  margin:22px auto 0;
  padding:40px 26px;
  border:1px solid var(--border);
  border-radius:calc(var(--radius) + 6px);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
  text-align:center;
}

.headline{
  margin:0 0 10px;
  font-size:clamp(32px, 5vw, 54px);
  letter-spacing:-.02em;
}

.subhead{
  margin:0 auto 22px;
  max-width:720px;
  color:var(--muted);
  line-height:1.55;
}

/* ===== HERO ACTION ===== */

.hero-actions{
  margin-bottom:28px;
}

.btn-primary{
  display:inline-block;
  padding:12px 22px;
  border-radius:14px;
  text-decoration:none;
  color:white;
  font-weight:800;
  background:linear-gradient(180deg, var(--accent2), #1E4EFF);
  box-shadow:0 16px 40px rgba(45,125,255,.35);
}

/* ===== FEATURES ===== */

.feature-row{
  display:grid;
  gap:16px;
  grid-template-columns:repeat(auto-fit, minmax(240px,1fr));
}

.feature-card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  padding:18px;
}

.feature-title{
  font-size:18px;
  font-weight:700;
  margin-bottom:6px;
}

.feature-text{
  color:var(--muted);
  line-height:1.5;
}

/* ===== DOWNLOAD ===== */

.download-strip{
  margin-top:28px;
  padding:26px;
  border-top:1px solid rgba(255,255,255,.12);
}

.download-title{
  font-size:22px;
  font-weight:700;
}

.download-sub{
  margin:6px 0 14px;
  color:var(--muted);
}

.btn-download{
  padding:10px 18px;
  border-radius:14px;
  border:none;
  background:#444;
  color:#aaa;
  cursor:not-allowed;
}

/* ===== PRICING ===== */

.section-title{
  margin: 34px 0 14px;
  font-size: 22px;
  font-weight: 800;
  text-align: center;
}

.pricing{
  margin-top: 24px;
  text-align: center;
}

.pricing-card{
  max-width: 560px;
  margin: 0 auto;
  text-align: left;

  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.08);
  box-shadow: 0 18px 50px rgba(0,0,0,.35);
  backdrop-filter: blur(10px);

  border-radius: 16px;
  padding: 18px;
}

.pricing-top{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  text-align: left;
}

.pricing-name{
  font-size: 18px;
  font-weight: 800;
}

.pricing-price{
  font-size: 20px;
  font-weight: 900;
}

.pricing-sub{
  margin-top: 8px;
  opacity: 0.85;
}

.pricing-list{
  margin: 14px auto 10px;
  padding-left: 20px;
  line-height: 1.6;

  display: inline-block;
  text-align: left;
}

.pricing-note{
  margin-top: 10px;
  opacity: 0.75;
  font-size: 14px;
}

.btn-buy{
  display:inline-block;
  margin-top: 14px;
  padding: 12px 20px;
  border-radius: 14px;
  text-decoration: none;

.btn-buy:hover{
  transform: translateY(-1px);
  box-shadow: 0 20px 46px rgba(45,125,255,.45);
}
  
  font-weight: 800;
  color: white;
  background: linear-gradient(180deg, var(--accent2), #1E4EFF);
  box-shadow: 0 16px 40px rgba(45,125,255,.35);

  transition: transform .15s ease, box-shadow .15s ease;
}