/* Shared actions. Deep blue fills retain readable white labels in both themes. */
.btn, .btn-primary, .download-btn, .btn-compact, .btn-compact-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: var(--control-height);
  padding: 0.65rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  background: var(--action-bg);
  color: var(--action-ink);
  box-shadow: var(--shadow-sm);
  transition: background-color 180ms, border-color 180ms, box-shadow 180ms;
}
.btn:hover, .btn-primary:hover, .download-btn:hover, .btn-compact:hover {
  background: var(--action-hover);
  color: var(--action-ink);
}
.btn:active, .btn-primary:active, .download-btn:active, .btn-compact:active {
  box-shadow: none;
}
.btn-compact, .btn-compact-outline {
  min-height: 38px;
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
}
.btn-light, .btn-compact-outline {
  border-color: var(--border-color);
  background: var(--surface-1);
  color: var(--text-color);
}
.btn-light:hover, .btn-compact-outline:hover {
  background: var(--surface-3);
  border-color: var(--accent-color);
  color: var(--accent-color);
}
.download-btn { margin-top: 1rem; }
.download-btn i { font-size: 1.1em; }
:where(.btn, .btn-primary, .download-btn, .btn-compact, .btn-compact-outline):disabled {
  opacity: .55;
  cursor: not-allowed;
  box-shadow: none;
}

.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 600;
  font-size: 0.95rem;
}
.form-group :is(input[type="text"], input[type="email"], input[type="password"], select, textarea) {
  width: 100%;
  min-height: var(--control-height);
  padding: 0.7rem 0.85rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
  color: var(--text-color);
  transition: border-color 180ms, box-shadow 180ms;
}
.form-group :is(input, select, textarea):focus-visible {
  border-color: var(--accent-color);
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}
.form-group input[type="file"] {
  display: block;
  width: 100%;
  padding: 0.6rem;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
  color: var(--text-color);
  cursor: pointer;
  font-size: 0.9rem;
}
.form-group input[type="file"]:hover { border-color: var(--accent-color); }

#installBtn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  min-height: var(--control-height);
  padding: 12px 24px;
  background: var(--action-bg);
  color: var(--action-ink);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  z-index: 999;
}
#installBtn:hover { background: var(--action-hover); }
.disabled-link, .disabled-link:hover, .card a.disabled-link:hover {
  background: var(--surface-3) !important;
  color: var(--text-secondary) !important;
  cursor: not-allowed !important;
  box-shadow: none !important;
  transform: none !important;
}
.font-toggle-btn.active { background: var(--action-bg); color: var(--action-ink); }
body.large-font :is(.btn, .btn-primary, .btn-light) { padding: 0.8rem 1.2rem; }