.sti { display: grid; gap: 28px; }
.sti-h { margin: 0 0 6px; font: 700 1.25rem/1.25 var(--f-display); color: var(--ink); letter-spacing: -0.01em; }
.sti-step { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-right: 8px; border-radius: 50%; background: var(--ink); color: var(--paper); font: 600 0.875rem var(--f-mono); vertical-align: 2px; }
.sti-help { margin: 0 0 12px; font-size: 0.95rem; color: var(--ink-soft); max-width: 75ch; }
.sti-items { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); align-items: start; }
.sti-item { border: 1px solid var(--rule); background: #fff; padding: 14px 16px; display: grid; gap: 6px; min-width: 0; }
.sti-item p { margin: 0; }
.sti-item__meta { font: 400 0.8125rem/1.4 var(--f-mono); color: var(--ink-soft); overflow-wrap: anywhere; }
.sti-item__title { font: 600 1.05rem/1.3 var(--f-display); color: var(--ink); }
.sti-tag { display: inline-block; margin-right: 6px; padding: 1px 6px; border: 1px solid var(--rule); color: var(--ink); }
.sti-item summary { cursor: pointer; font: 400 0.8125rem var(--f-mono); color: var(--teal-deep); min-height: 32px; display: flex; align-items: center; }
.sti-item summary:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.sti-raw { margin: 6px 0 0; padding: 10px 12px; background: var(--paper); border: 1px solid var(--rule); font: 400 0.8125rem/1.5 var(--f-mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.sti-form { display: block !important; }
.sti-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); align-items: start; }
.sti fieldset.sti-group { padding: 14px 16px; gap: 8px; background: #fff; }
.sti legend { font: 600 1.05rem/1.3 var(--f-display); color: var(--ink); letter-spacing: -0.01em; padding: 0 6px; }
.sti-opt, .sti-flag { display: flex !important; align-items: flex-start; gap: 10px; min-height: 44px; padding: 10px 12px; border: 1px solid var(--rule); border-radius: var(--radius);
  background: var(--paper-light); font: 400 0.975rem/1.35 var(--f-body) !important; color: var(--ink) !important; letter-spacing: 0 !important; cursor: pointer; }
.sti-opt strong { font-weight: 600; }
.sti-opt small { display: block; margin-top: 2px; font-size: 0.85rem; color: var(--ink-soft); }
.sti-opt:has(input:checked), .sti-flag:has(input:checked) { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); background: var(--paper); }
.sti-flag:has(input:checked) { background: color-mix(in srgb, var(--ochre) 35%, var(--paper-light)); }
.sti-opt input, .sti-flag input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--teal); flex: none; }
.sti-opt:has(input:focus-visible), .sti-flag:has(input:focus-visible) { outline: 3px solid var(--teal); outline-offset: 2px; }
.sti-flag { align-items: center; margin-top: 4px; }
.sti-result:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.sti-pending { color: var(--ink-soft); }
.sti-big { font-size: clamp(1.5rem, 3.4vw, 2.2rem) !important; line-height: 1.1 !important; }
.sti-legs { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; font-size: 0.9rem; }
.sti-legs li { padding: 6px 10px; border: 1px dashed var(--rule); color: var(--ink-soft); }
.sti-legs li.is-on { border: 1.5px solid var(--ink); background: color-mix(in srgb, var(--ochre) 35%, var(--paper-light)); color: var(--ink); }
.sti-trace { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.sti-ev { border: 1px solid var(--rule); border-left: 4px solid var(--teal); background: #fff; padding: 12px 16px; display: grid; gap: 6px; min-width: 0; }
.sti-ev p { margin: 0; }
.sti-ev--leaked { border-left-color: var(--ochre); }
.sti-ev--unread { border-left-color: var(--rule); }
.sti-status { display: inline-block; margin-right: 6px; padding: 1px 8px; background: var(--ink); color: var(--paper); font: 600 0.75rem var(--f-mono); letter-spacing: 0.02em; vertical-align: 1px; }
.sti-ev--leaked .sti-status { background: var(--ochre); color: var(--ink); }
.sti-ev__where { color: var(--ink-soft); font-size: 0.9rem; }
.sti-quote { margin: 4px 0 0; padding: 0 0 0 14px; border-left: 3px solid var(--teal); font-style: italic; color: var(--ink); }
.sti-quote cite { display: block; margin-top: 4px; font: 400 0.8125rem var(--f-mono); font-style: normal; color: var(--ink-soft); }
.sti .tool-verdict > p { margin: 6px 0 0; }