/* Phase 4: login modal and setup page */

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b0d14;
  font-weight: 600;
}
.btn.primary:hover { background: #a3c4ff; }
.btn:disabled { opacity: 0.6; cursor: default; }
/* R / W buttons on the home page: bottom-left corner, same place as in the subject index bar */
.mode-switch.home-mode {
  position: fixed;
  left: 14px;
  bottom: 12px;
  z-index: 20;
  padding: 0;
  border: 0;
}
.source-note { margin: 28px 0 0; color: var(--text-muted); font-size: 13px; }
.source-note b { color: var(--text); font-weight: 600; }
.link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}
.link-btn:hover { text-decoration: underline; }

.btn.danger {
  background: #e5484d;
  border-color: #e5484d;
  color: #fff;
  font-weight: 600;
}
.btn.danger:hover { background: #f06267; }
.modal-sub b { color: var(--text); font-weight: 600; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(3px);
  animation: fade-in 0.18s var(--ease);
}

.modal {
  width: min(400px, 100%);
  padding: 26px;
  background: #17171d;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  animation: toast-in 0.22s var(--ease);
}
.modal h2 { margin: 0 0 6px; font-size: 20px; letter-spacing: -0.01em; }
.modal-sub { margin: 0 0 18px; color: var(--text-muted); font-size: 14px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

.modal.shake { animation: shake 0.35s var(--ease); }
@keyframes shake {
  20%, 60% { transform: translateX(-7px); }
  40%, 80% { transform: translateX(7px); }
}

/* ---------- Form fields (shared with setup page) ---------- */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-muted); }
.field input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(138, 180, 255, 0.18); }
.field input:disabled { opacity: 0.6; }
.field small { display: block; margin-top: 6px; color: var(--text-muted); font-size: 12px; }

.pw { position: relative; }
.pw input { padding-right: 62px; }
.pw-toggle {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  padding: 4px 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
.pw-toggle:hover { color: var(--text); background: rgba(255, 255, 255, 0.08); }

.form-error { min-height: 20px; margin: 0; color: #ff8a8a; font-size: 13px; }
.form-warn { color: #ffd166; }
.form-ok { color: #7ee2a8; }

/* ---------- Setup page ---------- */
.setup { max-width: 640px; margin: 0 auto; padding: 56px 20px 80px; }
.setup h1 { margin: 0 0 8px; font-size: 28px; letter-spacing: -0.02em; }
.setup > p.lead { margin: 0 0 28px; color: var(--text-muted); }
.card {
  padding: 22px;
  margin-bottom: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.card h2 { margin: 0 0 14px; font-size: 16px; }
.card details { margin-bottom: 14px; color: var(--text-muted); font-size: 14px; }
.card details summary { cursor: pointer; color: var(--accent); }
.card details ol { margin: 10px 0 0; padding-left: 20px; }
.card details li { margin-bottom: 4px; }
.card code, .setup code { font-family: var(--font-mono); font-size: 0.9em; background: rgba(255, 255, 255, 0.08); padding: 0.1em 0.4em; border-radius: 5px; }
.setup textarea {
  width: 100%;
  min-height: 220px;
  padding: 12px;
  background: #0a0a0d;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  resize: vertical;
}
.setup ol.steps { padding-left: 20px; color: var(--text-muted); }
.setup ol.steps li { margin-bottom: 6px; }
.row-btns { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.hidden { display: none; }
.strength { font-size: 12px; margin-top: 6px; }