:root {
  --bg: #0d0f14;
  --card: #161a23;
  --border: #2a3140;
  --text: #e8eaf0;
  --muted: #9aa3b5;
  --accent: #7c5cff;
  --accent2: #00e0a4;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text);
  line-height: 1.6; padding: 0 16px;
}
.wrap { max-width: 900px; margin: 0 auto; padding: 48px 0; }
header.hero { text-align: center; padding: 56px 0 40px; }
.badge {
  display: inline-block; font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--accent2); border: 1px solid var(--accent2); border-radius: 999px;
  padding: 4px 14px; margin-bottom: 18px;
}
h1 { font-size: 2.6rem; line-height: 1.15; margin-bottom: 14px; }
h1 .grad {
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.sub { color: var(--muted); font-size: 1.15rem; max-width: 640px; margin: 0 auto 28px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff; font-weight: 700;
  font-size: 1.1rem; padding: 14px 34px; border-radius: 10px; text-decoration: none;
  border: none; cursor: pointer; transition: transform .1s;
}
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.price-tag { margin-top: 14px; color: var(--muted); }
.price-tag strong { color: var(--text); font-size: 1.3rem; }
section { margin: 48px 0; }
h2 { font-size: 1.6rem; margin-bottom: 18px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px 22px; margin-bottom: 14px;
}
.card h3 { font-size: 1.1rem; margin-bottom: 6px; color: var(--accent2); }
.card p, .card li { color: var(--muted); }
.card ul { padding-left: 20px; }
.card li { margin-bottom: 4px; }
.slides-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.slide-chip {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; text-decoration: none; color: var(--text);
}
.slide-chip .num { color: var(--accent); font-weight: 700; font-size: .85rem; }
.slide-chip h3 { font-size: 1rem; margin: 4px 0 2px; color: var(--text); }
.slide-chip p { font-size: .85rem; color: var(--muted); }
.faq details {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 18px; margin-bottom: 10px;
}
.faq summary { font-weight: 600; cursor: pointer; }
.faq p { color: var(--muted); margin-top: 8px; }
footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 32px 0; }

/* ---- deck viewer ---- */
.slide-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 26px 28px; margin-bottom: 20px;
}
.slide-card .num { color: var(--accent); font-weight: 800; font-size: .9rem; letter-spacing: 1px; }
.slide-card h3 { font-size: 1.5rem; margin: 6px 0 10px; color: var(--text); }
.purpose { border-left: 3px solid var(--accent); padding-left: 14px; color: var(--muted); margin-bottom: 14px; font-style: italic; }
.guidance li { margin-bottom: 6px; color: var(--text); }
.example {
  margin-top: 14px; background: #0a0c10; border: 1px dashed var(--border);
  border-radius: 10px; padding: 16px 18px;
}
.example .label { font-size: .75rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent2); margin-bottom: 8px; }
.example pre { white-space: pre-wrap; font-family: inherit; color: var(--text); }
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.pay-note { margin-top: 18px; color: var(--muted); font-size: .9rem; }

@media print {
  body { background: #fff; color: #111; padding: 0; }
  .wrap { max-width: 100%; padding: 0; }
  .toolbar, footer, header.hero .badge { display: none; }
  .slide-card { break-inside: avoid; border: 1px solid #ccc; background: #fff; }
  .slide-card h3, .guidance li { color: #111; }
  .purpose, .example pre { color: #333; }
  .example { background: #f6f6f6; border: 1px dashed #999; }
  .btn, .price-tag { display: none; }
}