.btn {
  font: inherit;
  border: 1px solid var(--line);
  background: var(--elev);
  color: var(--text);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--secondary { background: var(--muted-bg); }
.btn--ghost { background: transparent; border-color: transparent; }
.btn--danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn--sm { font-size: 0.85rem; padding: 0.25rem 0.5rem; }
.btn--icon { min-width: 2.2rem; }
.input, select.input, textarea.input {
  width: 100%;
  font: inherit;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--elev);
  color: inherit;
}
.field { margin-bottom: 0.85rem; }
.field__label { display: block; font-size: 0.9rem; margin-bottom: 0.2rem; }
.field__hint { margin: 0.25rem 0 0; font-size: 0.75rem; color: var(--text-faint); }
.form-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.card-list { list-style: none; padding: 0; margin: 0; }
.card-list li, .doc-card {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.dropzone {
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.25rem;
  text-align: center;
  background: var(--elev);
  margin: 1rem 0;
}
.dropzone.is-drag { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--elev)); }
.progress-bar {
  height: 0.45rem;
  background: var(--muted-bg);
  border-radius: 2px;
  overflow: hidden;
  margin: 0.5rem 0;
}
.progress-bar__fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 160ms ease;
}
.chip {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  margin: 0.2rem 0.4rem 0.2rem 0;
  font-size: 0.88rem;
}
.seg {
  display: flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
}
.seg__btn {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 0.55rem;
  font: inherit;
  cursor: pointer;
  color: inherit;
}
.seg__btn.is-active { background: var(--accent); color: #fff; }
.flashcard {
  border: 1px solid var(--line);
  background: var(--elev);
  border-radius: var(--radius);
  padding: 1.5rem;
  min-height: 10rem;
  cursor: pointer;
  margin: 1rem 0;
}
.flashcard__back { color: var(--text-muted); }
.source-list { list-style: none; padding: 0; }
.source-list li { padding: 0.35rem 0; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}
.profile-card {
  border: 1px solid var(--line);
  background: var(--elev);
  border-radius: var(--radius);
  padding: 1rem;
}
.profile-card.is-recommended { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.profile-card h3 { margin-top: 0; }
.modal-overlay {
  position: fixed; inset: 0; background: rgba(18, 26, 36, 0.45);
  display: grid; place-items: center; z-index: var(--z-modal); padding: 1rem;
}
.modal {
  background: var(--elev);
  max-width: 28rem;
  width: 100%;
  border-radius: var(--radius);
  max-height: 90vh;
  overflow: auto;
}
.modal__header, .modal__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
}
.modal__body { padding: 0 1rem 1rem; }
.toast-root {
  position: fixed; right: 1rem; bottom: 1rem; z-index: var(--z-toast);
  display: flex; flex-direction: column; gap: 0.4rem;
}
.toast {
  background: var(--ink); color: #fff;
  padding: 0.55rem 0.8rem; border-radius: var(--radius); font-size: 0.88rem;
}
.toast--success { background: var(--ok); }
.toast--error { background: var(--danger); }
.mastery-bar { height: 0.4rem; background: var(--muted-bg); border-radius: 2px; margin-top: 0.35rem; }
.mastery-bar__fill { height: 100%; background: var(--ok); border-radius: 2px; }
.doc-viewer {
  display: grid;
  grid-template-columns: 12rem 1fr;
  gap: 1rem;
  min-height: 24rem;
}
.doc-viewer__nav { border-right: 1px solid var(--line); padding-right: 0.75rem; font-size: 0.88rem; }
.doc-viewer__nav a { display: block; padding: 0.3rem 0; text-decoration: none; color: var(--text-muted); }
.doc-viewer__nav a.is-active { color: var(--accent-strong); font-weight: 700; }
.doc-viewer__page {
  background: var(--elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  white-space: pre-wrap;
  line-height: 1.6;
}
@media (max-width: 700px) {
  .doc-viewer { grid-template-columns: 1fr; }
  .doc-viewer__nav { border-right: 0; border-bottom: 1px solid var(--line); padding-bottom: 0.75rem; }
}
.panel {
  border-top: 1px solid var(--line);
  padding: 1.25rem 0;
  margin: 0.5rem 0;
}
.list-card { list-style: none; }
.list-card--row { display: flex; gap: 0.75rem; align-items: flex-start; }
.field--check { display: flex; gap: 0.5rem; align-items: flex-start; }
.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border-radius: 0.2rem;
  background: var(--muted-bg);
  color: var(--text-muted);
}
.badge--ok { background: var(--ok-bg); color: var(--ok); }
.badge--warn { background: var(--warn-bg); color: var(--warn); }
.badge--danger { background: color-mix(in srgb, var(--danger) 18%, var(--elev)); color: var(--danger); }
.badge--muted { background: var(--muted-bg); color: var(--text-muted); }
.import-progress { margin: 0.75rem 0; }
.onboarding .brand-mark { font-size: 1.75rem; }