:root {
  --bg: #0b1020;
  --card: #121a30;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-2: #22c55e;
  --text: #e5e7eb;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background: radial-gradient(circle at 15% 10%, #1d4ed8 0%, var(--bg) 45%), var(--bg);
}

.app-shell {
  max-width: 500px;
  margin: 0 auto;
  padding: 24px 14px 40px;
}

.hero {
  margin-bottom: 14px;
}

.badge {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  border: 1px solid #2b3b6f;
  border-radius: 999px;
  font-size: 12px;
  color: #bfdbfe;
}

.hero h1 {
  margin: 8px 0 4px;
  font-size: 28px;
  line-height: 1.2;
}

.sub {
  color: var(--muted);
  margin: 0;
}

.slider {
  position: relative;
  overflow: hidden;
  min-height: 420px;
}

.slide {
  display: none;
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.96));
  border: 1px solid #24385d;
  border-radius: 18px;
  padding: 18px;
  animation: show .25s ease;
}

.slide.active { display: block; }

@keyframes show {
  from { transform: translateX(18px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

h2 { margin-top: 4px; margin-bottom: 12px; }
label { display: block; margin-bottom: 6px; color: #cbd5e1; }
input, button {
  width: 100%;
  margin: 6px 0;
  border-radius: 12px;
  border: 1px solid #3a4f79;
  padding: 12px;
  font-size: 15px;
}
input { background: #0f172a; color: #e5e7eb; }
button {
  background: linear-gradient(90deg, var(--accent), #6366f1);
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: 600;
}
button.secondary {
  background: #1f2937;
  border: 1px solid #334155;
}

.row-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
}

.check input {
  width: auto;
  margin: 0;
}

.hint {
  color: var(--muted);
  font-size: 14px;
  min-height: 20px;
}

.plans {
  display: grid;
  gap: 10px;
}

.plan.selected {
  outline: 2px solid var(--accent-2);
}

#list {
  padding-left: 0;
  list-style: none;
}

#feed {
  margin-top: 10px;
  max-height: 220px;
  overflow-y: auto;
  padding: 10px;
  border-radius: 12px;
  background: #020617;
  border: 1px solid #1e293b;
}