:root {
  --bg: #0b0f17;
  --surface: #131a27;
  --border: #243047;
  --text: #e8edf5;
  --muted: #8fa3bf;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }

.header {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  background: rgba(11, 15, 23, 0.9);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-weight: 700; font-size: 1.1rem; letter-spacing: 0.02em; }

.hero { padding: 4rem 0 3rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.hero-copy h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.lead { color: var(--muted); font-size: 1.05rem; margin-bottom: 1.5rem; }

.benefits { list-style: none; margin-bottom: 1.5rem; }
.benefits li {
  padding: 0.35rem 0 0.35rem 1.5rem;
  position: relative;
  color: var(--muted);
}
.benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.affiliate-note { font-size: 0.8rem; color: var(--muted); }
.affiliate-note a { color: var(--accent); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.card h2 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.card > p { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.25rem; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

input[type="text"], input[type="email"] {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

input:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.15s;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-block { width: 100%; margin-top: 0.5rem; }
.btn-sm { padding: 0.45rem 1rem; font-size: 0.85rem; }

.form-error { color: #f87171; font-size: 0.85rem; margin-top: 0.75rem; }

.chat-card { display: flex; flex-direction: column; min-height: 420px; }
.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.badge {
  font-size: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  color: var(--muted);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
  max-height: 280px;
  min-height: 200px;
}

.msg {
  max-width: 88%;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  font-size: 0.92rem;
  line-height: 1.45;
}

.msg-bot {
  background: var(--bg);
  border: 1px solid var(--border);
  align-self: flex-start;
}

.msg-user {
  background: var(--accent);
  color: #fff;
  align-self: flex-end;
}

.chat-input-row {
  display: flex;
  gap: 0.5rem;
}

.chat-input-row input { flex: 1; margin-top: 0; }

.trial-cta {
  display: block;
  text-align: center;
  margin-top: 1rem;
  padding: 0.85rem;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid var(--success);
  border-radius: 8px;
  color: var(--success);
  font-weight: 600;
  text-decoration: none;
}

.trial-cta:hover { background: rgba(34, 197, 94, 0.2); }

.features { padding: 3rem 0; }
.features h2 { text-align: center; margin-bottom: 2rem; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature-grid article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.feature-grid h3 { margin-bottom: 0.5rem; font-size: 1rem; }
.feature-grid p { color: var(--muted); font-size: 0.9rem; }

.disclosure {
  padding: 2rem 1.25rem 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.typing {
  color: var(--muted);
  font-size: 0.85rem;
  font-style: italic;
}