.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  min-height: 44px;
  padding: .55em 1.3em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: filter .15s, transform .08s, background .15s, color .15s, border-color .15s;
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: scale(.97); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover { background: var(--accent); color: var(--accent-text); filter: none; }

.btn-danger-outline {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
.btn-danger-outline:hover { background: var(--danger); color: #fff; filter: none; }

.btn-logout {
  width: 100%;
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
.btn-logout:hover { background: var(--danger); color: #fff; }
.btn-logout svg { width: 1.2em; height: 1.2em; }

.btn.loading { pointer-events: none; opacity: .75; }
.btn.loading::after {
  content: '';
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-inline-start-color: transparent;
  border-radius: 50%;
  animation: btn-spin .7s linear infinite;
}
@keyframes btn-spin { to { transform: rotate(360deg); } }

.form-group { display: grid; gap: .4rem; margin-block-end: 1rem; }
.form-group label { font-size: .9rem; font-weight: 600; color: var(--text); }
.form-hint { font-size: .8rem; color: var(--text-2); }

.input,
input[type="text"], input[type="password"], input[type="email"],
input[type="number"], input[type="tel"], input[type="search"],
select, textarea {
  width: 100%;
  min-height: 44px;
  padding: .55em .9em;
  font: inherit;
  font-size: max(16px, 1rem);
  color: var(--text);
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .15s, box-shadow .15s;
}
textarea { min-height: 96px; resize: vertical; }
.input:hover, input:hover, select:hover, textarea:hover { border-color: var(--text-2); }
.input:focus, input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.input:disabled, input:disabled, select:disabled, textarea:disabled {
  opacity: .55;
  cursor: not-allowed;
}

.form-group.has-error .input,
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea { border-color: var(--danger); }
.form-error { font-size: .8rem; color: var(--danger); min-height: 1.2em; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0 1rem;
}
.form-grid .full { grid-column: 1 / -1; }

.form-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-start;
  margin-block-start: .5rem;
  flex-wrap: wrap;
}

.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  min-width: 0;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-block-end: 1rem;
}
.card-header h2, .card-header h3 { margin: 0; font-size: 1.05rem; }
.card-footer {
  margin-block-start: 1rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--border);
}
a.card, .card.clickable { transition: border-color .15s, transform .12s; }
a.card:hover, .card.clickable:hover { border-color: var(--accent); transform: translateY(-1px); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}
.settings-card {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: 1.1rem 1.25rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s, transform .12s;
  min-width: 0;
}
.settings-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.settings-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.settings-card .icon {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  background: color-mix(in srgb, var(--accent) 10%, var(--bg-2));
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
}
.settings-card .meta { flex: 1; min-width: 0; }
.settings-card .meta strong { display: block; font-weight: 700; }
.settings-card .meta span {
  display: block;
  font-size: .82rem;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.settings-card .chev {
  flex: 0 0 auto;
  color: var(--text-2);
  transition: transform .15s, color .15s;
}
.settings-card:hover .chev { color: var(--accent); transform: translateX(-3px); }

.update-bar {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 9998;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: .7rem 1rem;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  box-shadow: var(--shadow);
}
.update-bar.show { display: flex; }
.update-bar .btn {
  min-height: 38px;
  padding: .35em 1.1em;
  background: var(--text);
  color: var(--bg);
}
@media (max-width: 480px) {
  .update-bar { flex-direction: column; gap: .5rem; text-align: center; }
}

.app-version {
  display: block;
  text-align: center;
  font-size: .8rem;
  color: var(--text-2);
  padding: .5rem 0;
  user-select: none;
}

.confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  place-items: center;
  background: rgba(0,0,0,.45);
  padding: 1rem;
}
.confirm-overlay.show { display: grid; }
.confirm-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  text-align: center;
}
.confirm-box p { margin: 0 0 1.25rem; }
.confirm-box .form-actions { justify-content: center; }