/* Shared components: buttons, chips, menus, dialogs, toasts, skeletons, tooltips, forms. */

/* ---------- Buttons ---------- */
.icon-btn {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--cm-text-2);
  flex: none;
  text-decoration: none !important;
}
.icon-btn:hover { background: var(--cm-nav-hover); color: var(--cm-text); }
.icon-btn:active { background: var(--cm-border); }
.icon-btn:disabled { opacity: .38; background: transparent; }
.icon-btn.sm { width: 32px; height: 32px; }
.icon-btn.sm .ms { font-size: 18px; }
.icon-btn .ms { font-size: 20px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--cm-2);
  height: 36px;
  padding: 0 var(--cm-6);
  border: 1px solid transparent;
  border-radius: var(--cm-radius-pill);
  font-family: var(--cm-font);
  font-weight: 500;
  font-size: var(--cm-fs-md);
  letter-spacing: .01em;
  white-space: nowrap;
  text-decoration: none !important;
  transition: background var(--cm-fast), box-shadow var(--cm-fast);
}
.btn .ms { font-size: 18px; }
.btn-primary { background: var(--cm-primary); color: var(--cm-text-on-primary); }
.btn-primary:hover { background: var(--cm-primary-hover); box-shadow: var(--cm-shadow-1); }
.btn-tonal { background: var(--cm-primary-soft); color: var(--cm-text); }
.btn-tonal:hover { box-shadow: var(--cm-shadow-1); }
.btn-outline { background: transparent; color: var(--cm-text-2); border-color: var(--cm-border-strong); }
.btn-outline:hover { background: var(--cm-surface-hover); }
.btn-text { background: transparent; color: var(--cm-primary); padding: 0 var(--cm-3); }
.btn-text:hover { background: var(--cm-primary-soft); }
.btn-danger { background: var(--cm-danger); color: #fff; }
.btn:disabled { opacity: .5; box-shadow: none; }

/* ---------- Chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--cm-1);
  max-width: 100%;
  height: 24px;
  padding: 0 var(--cm-2);
  border-radius: var(--cm-radius-pill);
  background: var(--cm-surface-2);
  border: 1px solid var(--cm-border);
  font-size: var(--cm-fs-sm);
  color: var(--cm-text);
  white-space: nowrap;
}
.chip > span:not(.ms) { overflow: hidden; text-overflow: ellipsis; }
.chip.invalid { background: var(--cm-danger-soft); border-color: var(--cm-danger); }
.chip button { border: 0; background: transparent; padding: 0; display: inline-grid; place-items: center; color: var(--cm-text-2); border-radius: 50%; }
.chip button:hover { color: var(--cm-text); background: var(--cm-border); }
.chip .ms { font-size: 16px; }

.label-chip {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 var(--cm-2);
  border-radius: var(--cm-radius-sm);
  background: var(--cm-surface-2);
  color: var(--cm-text-2);
  font-size: var(--cm-fs-xs);
  vertical-align: middle;
}

/* ---------- Menus ---------- */
.menu {
  position: fixed;
  z-index: 200;
  min-width: 200px;
  max-width: 320px;
  max-height: min(480px, calc(100vh - 32px));
  overflow-y: auto;
  padding: var(--cm-2) 0;
  margin: 0;
  list-style: none;
  border-radius: var(--cm-radius);
  background: var(--cm-surface-raised);
  box-shadow: var(--cm-shadow-2);
  animation: cm-pop var(--cm-fast) var(--cm-ease);
}
.menu-item {
  display: flex;
  align-items: center;
  gap: var(--cm-3);
  width: 100%;
  min-height: 32px;
  padding: var(--cm-1) var(--cm-4);
  border: 0;
  background: transparent;
  text-align: left;
  color: var(--cm-text);
  font-size: var(--cm-fs-md);
}
.menu-item:hover, .menu-item:focus-visible { background: var(--cm-surface-hover); outline: none; }
.menu-item:disabled { color: var(--cm-text-3); background: transparent; }
.menu-item .ms { color: var(--cm-text-2); }
.menu-item .menu-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.menu-sep { height: 1px; margin: var(--cm-2) 0; background: var(--cm-divider); }
.menu-heading { padding: var(--cm-1) var(--cm-4); color: var(--cm-text-2); font-size: var(--cm-fs-xs); }

.account-card { padding: var(--cm-4); text-align: center; min-width: 280px; }
.account-card .avatar { margin: 0 auto var(--cm-2); }
.account-card .name { font-family: var(--cm-font); font-size: 1.1rem; }
.account-card .email { color: var(--cm-text-2); margin-bottom: var(--cm-4); }
.account-card .actions { display: flex; gap: var(--cm-2); justify-content: center; }

/* ---------- Dialogs ---------- */
dialog.dialog {
  width: min(480px, calc(100vw - 32px));
  max-height: calc(100vh - 64px);
  padding: 0;
  border: 0;
  border-radius: 28px;
  background: var(--cm-surface-raised);
  color: var(--cm-text);
  box-shadow: var(--cm-shadow-3);
}
dialog.dialog.wide { width: min(720px, calc(100vw - 32px)); }
dialog.dialog::backdrop { background: var(--cm-scrim); }
dialog.dialog[open] { animation: cm-pop var(--cm-medium) var(--cm-ease); }
.dialog-body { padding: var(--cm-6); }
.dialog-title { font-size: 1.5rem; margin-bottom: var(--cm-4); }
.dialog-text { color: var(--cm-text-2); margin: 0 0 var(--cm-4); }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--cm-2); padding: 0 var(--cm-6) var(--cm-6); }

.shortcut-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--cm-1) var(--cm-6); max-height: 60vh; overflow-y: auto; }
.shortcut-grid div { display: flex; justify-content: space-between; gap: var(--cm-4); padding: var(--cm-1) 0; border-bottom: 1px solid var(--cm-divider); }
kbd {
  display: inline-block;
  min-width: 22px;
  padding: 1px 6px;
  border: 1px solid var(--cm-border-strong);
  border-bottom-width: 2px;
  border-radius: var(--cm-radius-sm);
  background: var(--cm-surface-2);
  font-family: var(--cm-font-mono);
  font-size: var(--cm-fs-xs);
  text-align: center;
}

/* ---------- Toasts (bottom-left, one at a time, as in Gmail) ---------- */
.toast-region { position: fixed; left: var(--cm-6); bottom: var(--cm-6); z-index: 300; pointer-events: none; }
.toast {
  display: flex;
  align-items: center;
  gap: var(--cm-4);
  min-width: 288px;
  max-width: min(560px, calc(100vw - 48px));
  min-height: 48px;
  padding: var(--cm-2) var(--cm-2) var(--cm-2) var(--cm-6);
  border-radius: var(--cm-radius-sm);
  background: #313033;
  color: #f4eff4;
  box-shadow: var(--cm-shadow-2);
  pointer-events: auto;
  animation: cm-rise var(--cm-medium) var(--cm-ease);
}
.toast .toast-msg { flex: 1; }
.toast .toast-action { border: 0; background: transparent; color: #a8c7fa; font-weight: 500; padding: var(--cm-2) var(--cm-3); border-radius: var(--cm-radius-sm); }
.toast .toast-action:hover { background: rgba(255, 255, 255, .08); }
.toast .icon-btn { color: #f4eff4; }
.toast .icon-btn:hover { background: rgba(255, 255, 255, .08); }
.toast.error { background: #8c1d18; }

/* ---------- Skeleton loading ---------- */
.skeleton {
  display: block;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--cm-surface-2) 0%, var(--cm-border) 50%, var(--cm-surface-2) 100%);
  background-size: 200% 100%;
  animation: cm-shimmer 1.2s linear infinite;
}

/* ---------- Tooltips: any element with data-tip ---------- */
[data-tip] { position: relative; }
@media (hover: hover) {
  [data-tip]:hover::after, [data-tip]:focus-visible::after {
    content: attr(data-tip);
    position: absolute;
    top: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 400;
    padding: 4px 8px;
    border-radius: var(--cm-radius-sm);
    background: #3c4043;
    color: #fff;
    font: 500 var(--cm-fs-xs)/1.4 var(--cm-font-text);
    white-space: nowrap;
    pointer-events: none;
    animation: cm-fade 120ms 400ms both;
  }
  [data-tip-pos="above"]:hover::after { top: auto; bottom: calc(100% + 4px); }
}

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: var(--cm-1); margin-bottom: var(--cm-4); }
.field label, .field .field-label { font-size: var(--cm-fs-sm); color: var(--cm-text-2); font-weight: 500; }
.input, .select {
  height: 40px;
  padding: 0 var(--cm-3);
  border: 1px solid var(--cm-border-strong);
  border-radius: var(--cm-radius-sm);
  background: var(--cm-surface);
  color: var(--cm-text);
  outline: none;
  transition: border-color var(--cm-fast), box-shadow var(--cm-fast);
}
.input:focus, .select:focus { border-color: var(--cm-primary); box-shadow: inset 0 0 0 1px var(--cm-primary); }
.radio-row, .check-row { display: flex; flex-wrap: wrap; gap: var(--cm-2) var(--cm-6); align-items: center; }
.radio-row label, .check-row label { display: inline-flex; gap: var(--cm-2); align-items: center; color: var(--cm-text); font-weight: 400; font-size: var(--cm-fs-md); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--cm-primary); width: 16px; height: 16px; margin: 0; }

.banner {
  display: flex;
  align-items: center;
  gap: var(--cm-3);
  padding: var(--cm-2) var(--cm-4);
  border-radius: var(--cm-radius);
  background: var(--cm-surface-2);
  color: var(--cm-text-2);
  font-size: var(--cm-fs-sm);
}
.banner.warn { background: var(--cm-warning-soft); }
.banner .btn-text { height: 28px; }

.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--cm-border);
  border-top-color: var(--cm-primary);
  border-radius: 50%;
  animation: cm-spin .8s linear infinite;
}

.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--cm-3); padding: 64px var(--cm-6); color: var(--cm-text-2); text-align: center; }
.empty-state .ms { font-size: 64px; width: 64px; height: 64px; color: var(--cm-border-strong); }
.empty-state h2 { font-size: var(--cm-fs-lg); color: var(--cm-text); }

@keyframes cm-pop { from { opacity: 0; transform: scale(.96); } to { opacity: 1; transform: none; } }
@keyframes cm-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes cm-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes cm-shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
@keyframes cm-spin { to { transform: rotate(360deg); } }