/* Components */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-block-size: var(--tap); min-inline-size: var(--tap);
  padding: .5rem 1.25rem; border: 2px solid var(--btn-bg); border-radius: var(--radius); background: var(--btn-bg); color: var(--btn-fg);
  font-weight: 600; text-decoration: none; cursor: pointer; line-height: 1.2; text-align: center;
}
.btn:hover { background: var(--btn-bg-hover); border-color: var(--btn-bg-hover); }
.btn-secondary { background: transparent; color: var(--link); border-color: var(--link); }
.btn-secondary:hover { background: var(--info-bg); border-color: var(--link); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: var(--on-danger); }
.btn-danger:hover { background: var(--danger); filter: brightness(.92); border-color: var(--danger); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-accent:hover { background: var(--accent); filter: brightness(.95); border-color: var(--accent); }
.btn[aria-disabled="true"], .btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-link { background: none; border: 0; padding: 0; min-block-size: var(--tap); color: var(--link); text-decoration: underline; cursor: pointer; }

/* forms */
.field { margin-block-end: 1.25rem; }
.field > label, legend, .label { display: block; font-weight: 600; margin-block-end: .25rem; }
.req { color: var(--danger); }
.hint { display: block; color: var(--text-muted); font-size: .875rem; margin-block-end: .25rem; }
input:not([type="checkbox"], [type="radio"], [type="hidden"]), select, textarea {
  display: block; inline-size: 100%; min-block-size: var(--tap); padding: .5rem .75rem; font-size: 1rem;
  background: var(--bg); color: var(--text); border: 2px solid var(--border); border-radius: var(--radius);
}
textarea { min-block-size: 8rem; resize: vertical; }
::placeholder { color: var(--text-muted); opacity: 1; }
input[type="checkbox"], input[type="radio"] { inline-size: 1.5rem; block-size: 1.5rem; flex: none; accent-color: var(--btn-bg); margin: 0; }
.choice { display: flex; gap: .75rem; align-items: flex-start; min-block-size: var(--tap); padding-block: .5rem; }
.choice label { font-weight: 400; margin: 0; }
fieldset { border: 0; padding: 0; min-inline-size: 0; }
[aria-invalid="true"] { border-color: var(--danger); border-width: 3px; }
.field-error { display: block; color: var(--danger); font-weight: 700; margin-block-start: .25rem; }
.field-error::before { content: "\26A0\FE0E\00A0"; }

/* alerts: icon + text, never colour alone */
.alert { display: flex; gap: .75rem; padding: .75rem 1rem; margin-block-end: 1rem; border: 1px solid var(--border); border-inline-start-width: 6px; border-radius: var(--radius); background: var(--surface); color: var(--text); }
.alert p:last-child { margin: 0; }
.alert-icon { flex: none; font-weight: 700; }
.alert-info { background: var(--info-bg); border-inline-start-color: var(--info); }
.alert-success { background: var(--success-bg); border-inline-start-color: var(--success); }
.alert-warn { background: var(--warn-bg); border-inline-start-color: var(--warn); }
.alert-danger { background: var(--danger-bg); border-inline-start-color: var(--danger); }
.error-summary { border: 3px solid var(--danger); background: var(--danger-bg); color: var(--text); padding: 1rem; margin-block-end: 1.5rem; border-radius: var(--radius); }
.error-summary h2 { font-size: 1.5rem; color: var(--text); }
.error-summary ul { margin: 0; }
.error-summary a { color: var(--text); font-weight: 700; }
.error-summary:focus { outline: 3px solid var(--focus); outline-offset: 2px; }

.badge { display: inline-flex; align-items: center; gap: .35rem; padding: .125rem .625rem; border: 1px solid var(--border); border-radius: 999px; background: var(--surface-2); color: var(--text); font-size: .875rem; font-weight: 600; }
.badge-success { background: var(--success-bg); border-color: var(--success); }
.badge-warn { background: var(--warn-bg); border-color: var(--warn); }
.badge-danger { background: var(--danger-bg); border-color: var(--danger); }
.badge-info { background: var(--info-bg); border-color: var(--info); }
.card { background: var(--surface); border: 1px solid var(--divider); border-radius: var(--radius); padding: 1rem; }
.card h2, .card h3 { margin-block-start: 0; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 0 0 1em; }
.chip { display: inline-flex; align-items: center; min-block-size: 2rem; padding-inline: .75rem; border: 1px solid var(--border); border-radius: 999px; background: var(--bg); color: var(--text); text-decoration: none; }
.chip[aria-current="true"], .chip[aria-pressed="true"] { background: var(--btn-bg); border-color: var(--btn-bg); color: var(--btn-fg); font-weight: 700; }

/* tables (wide ones in .table-wrap: 320 px reflow) */
.table-wrap { overflow-x: auto; max-inline-size: 100%; position: relative; }
table { border-collapse: collapse; inline-size: 100%; }
caption { text-align: start; font-weight: 700; padding-block-end: .5rem; }
th, td { text-align: start; padding: .5rem .75rem; border-block-end: 1px solid var(--divider); vertical-align: top; }
th { background: var(--surface-2); }

/* pagination */
.pagination ul { list-style: none; padding: 0; margin: 1.5rem 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.pagination li > a, .pagination li > span { display: inline-flex; align-items: center; justify-content: center; min-block-size: var(--tap); min-inline-size: var(--tap); padding-inline: .75rem; border: 2px solid var(--border); border-radius: var(--radius); text-decoration: none; color: var(--link); }
.pagination [aria-current="page"] { background: var(--btn-bg); border-color: var(--btn-bg); color: var(--btn-fg); font-weight: 700; }
.pagination .gap, .pagination .off { border-color: transparent; color: var(--text-muted); }

dialog { max-inline-size: min(32rem, 92vw); padding: 1.5rem; border: 2px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--text); }
dialog::backdrop { background: rgb(0 0 0 / .6); }
details > summary { cursor: pointer; min-block-size: var(--tap); display: flex; align-items: center; font-weight: 600; }
.theme-toggle { display: none; gap: .25rem 1rem; align-items: center; margin: 0; }
.js .theme-toggle { display: flex; flex-wrap: wrap; }
.theme-toggle legend { display: inline; float: none; margin: 0 .5rem 0 0; font-weight: 400; color: var(--chrome-muted); }
.theme-toggle label { position: relative; display: inline-flex; align-items: center; justify-content: center; inline-size: 2.5rem; block-size: 2.5rem; margin: 0; border: 1px solid var(--chrome-muted); border-radius: 50%; cursor: pointer; }
.theme-toggle input { position: absolute; opacity: 0; }
.theme-toggle label:has(:checked) { color: var(--accent); border-color: var(--accent); }
.theme-toggle label:has(:focus-visible) { outline: 3px solid var(--chrome-focus); outline-offset: 2px; }

.status-steps { list-style: none; padding: 0; counter-reset: s; }
.status-steps li { padding: .5rem 0 .5rem 2.5rem; position: relative; }
.status-steps li::before { counter-increment: s; content: counter(s); position: absolute; inset-inline-start: 0; inline-size: 1.75rem; block-size: 1.75rem; border: 2px solid var(--border); border-radius: 50%; display: grid; place-items: center; font-weight: 700; }
.status-steps [aria-current="step"] { font-weight: 700; }
.status-steps [aria-current="step"]::before { background: var(--btn-bg); color: var(--btn-fg); border-color: var(--btn-bg); }

@media (forced-colors: active) {
  .btn, .badge, .chip { border: 2px solid ButtonText; }
  .alert, .error-summary { border: 2px solid CanvasText; }
  :where(a, button, input, select, textarea, summary):focus-visible { outline: 3px solid Highlight; }
}