/* chips.css | proof chip, chip popover and toast. Owner: pixel-news. Shared: /world links it, never edits it.
   Spec: components.md A3, A5, A8; aegis MUST 1, 4, 14, 15. Tokens: base.css (kit) + tokens.css (Iris). Fallbacks equal the token values. */

.chip {
  --step: var(--step-s, 2px);
  --cut-s: polygon(var(--step) 0, calc(100% - var(--step)) 0, 100% var(--step), 100% calc(100% - var(--step)), calc(100% - var(--step)) 100%, var(--step) 100%, 0 calc(100% - var(--step)), 0 var(--step));
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  min-block-size: 1.5rem; /* 24px target (2.5.8) */
  padding: var(--s-1, 2px) 6px;
  margin-inline: 0.15em;
  vertical-align: 0.1em;
  font-family: var(--mono);
  font-size: var(--t-chip, 0.6875rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums slashed-zero;
  white-space: nowrap;
  text-transform: none;
  color: var(--ac2);
  background: var(--sf); /* 100% opaque, aegis B2 */
  border: 1px solid var(--ln2); /* real border: survives forced colors */
  clip-path: var(--cut-s);
  cursor: pointer;
  transition: border-color var(--d-fast, 140ms) var(--e-out, ease), color var(--d-fast, 140ms) var(--e-out, ease);
}
.chip .chip-k { color: var(--mu); }
.chip[data-kind="pause"] .chip-k { color: var(--warn); }
.chip[data-kind="flag"] .chip-k { color: var(--bad); }
.chip.chip-missing { color: var(--bad); }
@media (hover: hover) { .chip:hover { border-color: var(--ac); color: var(--fg); } }
.chip[aria-expanded="true"] { border-color: var(--ac); color: var(--fg); }
.chip:focus-visible { clip-path: none; outline: 2px solid var(--c-focus, var(--ac)); outline-offset: 2px; box-shadow: 0 0 0 2px var(--bg); }
.chip:active { background: var(--sf3); }

/* on ivory plates (breaking band, lower third) */
.plate .chip, .chip.on-plate { background: var(--ac); color: var(--ac-fg); border-color: var(--c-text-plate-mu, #5E5640); }
.plate .chip .chip-k, .chip.on-plate .chip-k { color: var(--c-text-plate-mu, #5E5640); }
.plate .chip:focus-visible, .chip.on-plate:focus-visible { outline-color: var(--ac-fg); box-shadow: 0 0 0 2px var(--ac); }

@media (pointer: coarse) {
  .chip { font-size: 0.75rem; }
  .chip::after { content: ""; position: absolute; inset: -10px -4px; } /* 44px hit area, visual size unchanged */
}

/* popover (non-modal dialog, inserted after its chip, positioned fixed) */
.chip-pop {
  position: fixed;
  z-index: var(--z-popover, 50);
  display: block;
  inline-size: max-content;
  max-inline-size: min(300px, calc(100vw - 16px));
  padding: var(--s-4, 12px);
  background: var(--sf2);
  border: 1px solid var(--ln2);
  box-shadow: var(--el-float, 0 18px 40px -22px rgba(4,6,14,.92));
  font-family: var(--sans);
  font-size: var(--t-small, 0.8125rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0;
  text-transform: none;
  text-align: start;
  white-space: normal;
  color: var(--fg);
}
.chip-pop[data-tone="warn"] { border-color: var(--warn); }
.chip-pop[data-tone="bad"] { border-color: var(--bad); }
.chip-pop .chip-list { display: grid; grid-template-columns: auto 1fr; gap: var(--s-1, 2px) var(--s-4, 12px); }
.chip-pop .chip-row { display: contents; }
.chip-pop .chip-dt { color: var(--mu); font-family: var(--mono); font-size: var(--t-chip, 0.6875rem); padding-top: 1px; }
.chip-pop .chip-dd { font-family: var(--mono); font-size: var(--t-mono, 0.78125rem); font-variant-numeric: tabular-nums slashed-zero; color: var(--fg); }
.chip-pop .chip-full { overflow-wrap: anywhere; color: var(--ac2); }
.chip-pop .chip-note { display: block; margin-top: var(--s-3, 8px); color: var(--fgl); }
.chip-pop .chip-copy {
  display: inline-flex; align-items: center; min-block-size: 1.75rem; margin-top: var(--s-3, 8px); padding: 0 var(--s-4, 12px);
  font-size: var(--t-ui, 0.875rem); font-weight: 500; color: var(--fg); background: var(--sf3); border: 1px solid var(--c-control, #6577A8);
}
@media (hover: hover) { .chip-pop .chip-copy:hover { border-color: var(--ac); } }
.chip-pop .chip-copy:focus-visible { outline: 2px solid var(--c-focus, var(--ac)); outline-offset: 2px; box-shadow: 0 0 0 2px var(--bg); }
@media (max-width: 479.98px) {
  .chip-pop { left: 0; right: 0; bottom: 0; top: auto; inline-size: auto; max-inline-size: none; border-width: 1px 0 0; padding-bottom: calc(var(--s-5, 16px) + env(safe-area-inset-bottom)); }
}

/* toast (A8) */
.chip-toast {
  position: fixed; left: 50%; bottom: calc(var(--s-9, 48px) + env(safe-area-inset-bottom)); z-index: var(--z-toast, 70);
  max-inline-size: min(420px, calc(100vw - 32px)); padding: var(--s-3, 8px) var(--s-5, 16px);
  background: var(--sf2); border: 1px solid var(--ln2); color: var(--fg); font-size: var(--t-small, 0.8125rem);
  transform: translate(-50%, 8px); opacity: 0; pointer-events: none;
  transition: opacity var(--d-base, 220ms) var(--e-out, ease), transform var(--d-base, 220ms) var(--e-out, ease);
}
.chip-toast.on { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.chip-toast:empty { display: none; }

@media (prefers-reduced-motion: reduce) { .chip, .chip-toast { transition: none; } }
@media (forced-colors: active) {
  .chip, .chip-pop, .chip-copy { border-color: CanvasText; forced-color-adjust: auto; }
  .chip:focus-visible { outline: 2px solid CanvasText; }
}