:root {
  --qa-bg: #f4f7fb;
  --qa-surface: #ffffff;
  --qa-navy: #0b1f3a;
  --qa-navy-soft: #1b3a5f;
  --qa-text: #142033;
  --qa-muted: #5b6b7c;
  --qa-border: #e4ebf3;
  --qa-gold: #c9a24a;
  --qa-radius: 1rem;
  --qa-shadow: 0 10px 30px rgba(15, 35, 70, 0.08);
}

body.qa-v1-body {
  margin: 0;
  font-family: Inter, Manrope, system-ui, sans-serif;
  background: var(--qa-bg);
  color: var(--qa-text);
}

.qa-wrap { min-height: 100vh; display: flex; flex-direction: column; }

.qa-header {
  background: var(--qa-surface);
  border-bottom: 1px solid var(--qa-border);
  padding: 0.9rem 1.25rem;
}

.qa-header__inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.qa-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--qa-navy);
  font-weight: 700;
}

.qa-brand svg { width: 2rem; height: 2.25rem; }

.qa-nav a {
  color: var(--qa-navy);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}

.qa-nav a.is-active {
  border-bottom: 2px solid var(--qa-gold);
  padding-bottom: 0.15rem;
}

.qa-main {
  width: min(100%, 800px);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  flex: 1;
}

.qa-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--qa-gold);
  font-weight: 700;
}

.qa-title {
  margin: 0 0 0.55rem;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  color: var(--qa-navy);
}

.qa-sub {
  margin: 0 0 1.5rem;
  color: var(--qa-muted);
  line-height: 1.55;
}

.qa-list { display: grid; gap: 0.65rem; }

.qa-item {
  background: var(--qa-surface);
  border: 1px solid var(--qa-border);
  border-radius: 0.9rem;
  box-shadow: var(--qa-shadow);
  padding: 0.15rem 1rem 0.15rem;
}

.qa-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  color: var(--qa-navy);
  padding: 0.95rem 0;
}

.qa-item summary::-webkit-details-marker { display: none; }

.qa-item p {
  margin: 0 0 1rem;
  color: var(--qa-muted);
  line-height: 1.55;
  font-size: 0.95rem;
}

.qa-note {
  margin: 1.35rem 0 1rem;
  padding: 0.85rem 1rem;
  border-radius: 0.85rem;
  background: #eef5ff;
  border: 1px solid #d5e4ff;
  color: var(--qa-navy-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.qa-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.qa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.qa-btn--primary { background: var(--qa-navy); color: #fff; }
.qa-btn--ghost {
  background: transparent;
  border: 1px solid var(--qa-border);
  color: var(--qa-navy);
}

.qa-footer {
  margin-top: auto;
  padding: 1.25rem;
  text-align: center;
  color: var(--qa-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--qa-border);
  background: var(--qa-surface);
}

.qa-footer a { color: var(--qa-navy-soft); }