* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.container {
  text-align: center;
  max-width: 500px;
  padding: 2.5rem;
  background: rgba(255,255,255,0.03);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
}
.jar { font-size: 5rem; margin-bottom: 1rem; }
h1 { font-size: 2.8rem; margin-bottom: 0.5rem; }
.hl { color: #10b981; }
.tagline { color: #94a3b8; margin-bottom: 1.5rem; font-size: 1.1rem; }
input, button, .btn, .link {
  width: 100%;
  padding: 1rem;
  margin: 0.6rem 0;
  border: none;
  border-radius: 14px;
  font-size: 1rem;
}
input {
  background: rgba(255,255,255,0.08);
  color: white;
  border: 1px solid rgba(255,255,255,0.2);
}
input::placeholder { color: #64748b; }
button, .btn {
  background: linear-gradient(135deg, #10b981, #06b6d4);
  color: white;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover, .btn:hover { transform: translateY(-2px); }
.link {
  color: #06b6d4;
  font-size: 0.9rem;
  text-decoration: underline;
  cursor: pointer;
}
.hidden { display: none; }
.msg {
  margin: 1.5rem 0;
  padding: 1rem;
  border-radius: 14px;
  font-weight: 600;
}
.success { background: rgba(16,185,129,0.15); border: 1px solid #10b981; }
.error { background: rgba(239,68,68,0.15); border: 1px solid #ef4444; }
.stats { margin-top: 2rem; font-size: 1.2rem; color: #10b981; }
.comparison { text-align: left; margin: 2rem 0; }
.comparison h2 { font-size: 1.4rem; margin: 1rem 0 0.5rem; color: #10b981; }
.comparison ul { margin-bottom: 1.5rem; padding-left: 1.5rem; }
.comparison li { margin: 0.5rem 0; }