/* First-run guidance. Full screen, one column, the same ground and ink as everything else.
 *
 * The selectors are all scoped to .study-page on purpose. The app layer sets
 * `body.study-page > * { position: relative; z-index: 1 }`, which is one class heavier than a
 * bare `.onboard-layer` — so an unscoped rule lost the z-index, the layer landed at 1, and the
 * header (z-index 40) and the nav painted on top of it. The step marker and the buttons were
 * sitting in the middle of the app's own header. Scoping it makes the layer win on its own
 * terms instead of by adding !important everywhere.
 */

.study-page .onboard-layer {
  position: fixed !important;
  inset: 0;
  z-index: 97;
  display: block;
  overflow: auto;
  background: var(--mc-ground);
  color: var(--mc-ink);
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
.study-page .onboard-layer[hidden] { display: none !important; }

/* The page behind must not scroll while the layer is up, or the first view drifts under the
   reader's thumb. */
body.study-page.onboarding-open { overflow: hidden !important; }

.study-page .onboard-sheet {
  width: min(560px, 100%);
  margin: 0 auto;
  padding: 26px 22px 64px;
}

.study-page .onboard-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding-bottom: 14px;
  border-bottom: var(--mc-hair) solid var(--mc-line);
}
.study-page .onboard-step {
  font-family: Anton, Inter, system-ui, sans-serif;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mc-accent);
}
.study-page .onboard-title {
  margin: 0;
  font-size: 19px;
  letter-spacing: -.3px;
  min-width: 0;
  flex: 1 1 auto;
}
.study-page .onboard-lang {
  font-size: 12.5px;
  padding: 4px 8px;
  border: var(--mc-hair) solid var(--mc-line);
  border-radius: 8px;
  background: transparent;
  color: var(--mc-ink);
}
.study-page .onboard-back,
.study-page .onboard-skip {
  font-size: 12.5px !important;
  padding: 4px 0 !important;
  border: 0 !important;
  background: none !important;
  color: var(--mc-muted) !important;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  white-space: nowrap;
}
.study-page .onboard-back { margin-left: auto; }
.study-page .onboard-skip { margin-left: auto; }
.study-page .onboard-back:not([hidden]) + .onboard-skip { margin-left: 14px; }
.study-page .onboard-back:hover,
.study-page .onboard-skip:hover { color: var(--mc-ink) !important; }

.study-page .onboard-body { padding-top: 22px; }
.study-page .onboard-text { margin: 0 0 18px; font-size: 14.5px; line-height: 1.9; }
.study-page .onboard-note { margin: 0 0 16px; font-size: 13px; line-height: 1.8; color: var(--mc-muted); }
.study-page .onboard-address {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--mc-accent);
  word-break: break-all;
}
.study-page .onboard-message {
  margin: 14px 0 0;
  padding: 9px 11px;
  border: var(--mc-hair) solid var(--mc-line);
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.65;
}
.study-page .onboard-message.ok { border-color: var(--mc-accent); }
.study-page .onboard-message.error { border-color: var(--mc-accent); color: var(--mc-accent); }

.study-page .onboard-form { display: flex; flex-direction: column; gap: 12px; }
.study-page .onboard-field { display: flex; flex-direction: column; gap: 6px; }
.study-page .onboard-field > span { color: var(--mc-muted); font-size: 12.5px; }
.study-page .onboard-field input { width: 100%; }
.study-page .onboard-field[hidden] { display: none !important; }

.study-page .onboard-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.study-page .onboard-actions > button,
.study-page .onboard-actions > a { flex: 1 1 0; min-width: 140px; }
.study-page .onboard-plans {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--btn-min-h, 44px);
  padding: 10px 20px;
  border: var(--mc-hair) solid var(--mc-ink);
  border-radius: var(--btn-radius, 8px);
  color: var(--mc-ink);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
}
.study-page .onboard-plans:hover { border-color: var(--mc-accent); color: var(--mc-accent); }

.study-page .onboard-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  margin-top: 12px;
}
.study-page .onboard-google-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: var(--mc-hair) solid var(--mc-line);
  border-radius: 50%;
  font-family: Anton, Inter, system-ui, sans-serif;
  font-size: 13px;
  line-height: 1;
}

.study-page .onboard-docs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.study-page .onboard-docs a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border: var(--mc-hair) solid var(--mc-line);
  border-radius: 999px;
  color: var(--mc-ink);
  font-size: 13px;
  text-decoration: none;
}
.study-page .onboard-docs a:hover { border-color: var(--mc-accent); color: var(--mc-accent); }

.study-page .onboard-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  font-size: 14px;
  line-height: 1.7;
  cursor: pointer;
}
.study-page .onboard-check input { margin-top: 3px; width: 18px; height: 18px; flex: 0 0 18px; }

.study-page .onboard-steps { margin: 0 0 4px; padding: 0; list-style: none; }
.study-page .onboard-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: var(--mc-hair) solid var(--mc-line);
  font-size: 14px;
  line-height: 1.8;
}
.study-page .onboard-steps li:first-child { border-top: var(--mc-hair) solid var(--mc-line); }
.study-page .onboard-glyph {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: var(--mc-hair) solid var(--mc-line);
  border-radius: 7px;
  font-size: 15px;
  color: var(--mc-accent);
}