/* Visible endpoints and a continuous field strip; never scroll the page. */
.stream-lab{min-width:0;max-width:100%;padding:20px;border:1px solid var(--line);border-radius:10px;background:var(--paper);font-size:14px;line-height:1.75}
.stream-lab h3{margin-top:0}.stream-lab [hidden]{display:none!important}
.stream-controls{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 8px}
.stream-controls button{min-height:38px;padding:7px 13px;border:1px solid var(--line);border-radius:7px;background:var(--surface);font:500 13px/1.5 var(--sans);color:var(--ink);cursor:pointer}
.stream-controls button:hover:not(:disabled),.stream-controls button[aria-pressed="true"]{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand)}
.stream-controls button:disabled{color:var(--muted);cursor:default;background:var(--surface-2)}
.stream-status{font-weight:600;color:var(--brand-2);font-size:13px;min-height:24px}.stream-motion-note,.stream-note{font-size:12px;color:var(--muted)}
.stream-scene{display:grid;grid-template-columns:minmax(0,1fr) minmax(95px,.7fr) minmax(0,1fr);gap:12px;align-items:stretch;margin:14px 0 20px}
.stream-machine{min-width:0;border:1px solid var(--line);border-radius:8px;padding:12px;background:var(--surface)}
.mechanism-prose .stream-machine,.mechanism-prose .stream-panel{margin:0}
.stream-machine header{display:flex;align-items:baseline;justify-content:space-between;gap:8px;flex-wrap:wrap}.stream-machine header strong{font-size:14px}.stream-machine header span{font-size:11px;color:var(--brand-2)}
.stream-machine p{font-size:11px;margin:7px 0!important;overflow-wrap:anywhere}
.stream-memory{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin:10px 0}
.stream-page{display:block;text-align:center;border:1px solid var(--line);border-radius:4px;padding:5px 1px;background:var(--paper);min-width:0}
.stream-page b{display:block;font:650 14px/1.7 var(--mono)}.stream-page small{display:block;font:10px/1.5 var(--mono);color:var(--muted)}
.stream-page[data-page-state="dirty"]{border-color:#c9904d;background:#fff5e6}.stream-page[data-page-state="stale"]{border-color:#c9904d;border-style:dashed;background:#fff5e6}.stream-page[data-page-state="current"]{border-color:var(--brand);background:var(--brand-soft)}.stream-page[data-page-state="missing"]{color:var(--muted);border-style:dashed}
.stream-lane{position:relative;display:flex;flex-direction:column;justify-content:center;min-width:0;text-align:center;font-size:11px;color:var(--muted)}
.stream-wire{position:relative;height:46px;width:100%;border-top:2px solid var(--brand);margin-top:26px}
.stream-wire::after{content:"";position:absolute;right:-1px;top:-5px;border-left:7px solid var(--brand);border-top:4px solid transparent;border-bottom:4px solid transparent}
.stream-packet{position:absolute;top:-18px;max-width:100%;white-space:nowrap;border:1px solid var(--brand);border-radius:4px;padding:6px;background:var(--brand-soft);color:var(--brand-2);font:600 11px/1.5 var(--mono);box-shadow:0 2px 6px #0001}
.stream-lane p{font-size:11px;margin:0!important;overflow-wrap:anywhere}.stream-parser{min-height:34px;color:var(--brand-2)}.stream-legend{font-size:11px;color:var(--muted);margin:0 0 12px!important}
.mechanism-prose .stream-sequence{list-style:none;margin:12px 0 16px;padding:0;display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);counter-reset:stream-record}
.mechanism-prose .stream-record{margin:0;padding:0;min-width:0;display:block;counter-increment:stream-record}
.stream-select{display:block;border:0;background:none;padding:8px 10px;color:var(--muted);font:500 12px/1.5 var(--sans);cursor:pointer;min-width:0}
.stream-select::before{content:counter(stream-record,decimal-leading-zero) " ";font:10px var(--mono)}.stream-record[data-state="current"] .stream-select{background:var(--brand-soft);color:var(--brand-2);box-shadow:inset 0 -2px var(--brand)}.stream-record[data-state="read"] .stream-select{color:var(--ink)}
.stream-local .stream-select{font-style:italic}.stream-panel{min-width:0;padding-block:8px;border-bottom:1px solid var(--line)}
.stream-panel h4{font-size:15px;margin:0 0 9px}.stream-panel p{font-size:12px;margin:8px 0!important}.stream-panel h4 small{font-size:11px;font-weight:400;color:var(--muted);margin-left:8px}
.stream-fields-scroll{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:auto}
.stream-fields{display:flex;align-items:stretch;width:max-content;min-width:100%;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.stream-field{display:flex;flex-direction:column;justify-content:center;text-align:center;padding:7px 10px;min-width:64px;border-right:1px solid var(--line);background:var(--surface-2)}.stream-field:last-child{border-right:0}.stream-field[data-kind="payload"]{background:var(--brand-soft)}.stream-field[data-kind="marker"]{background:#f7efdf}
.stream-field code{display:block;background:none;padding:0;color:var(--ink);font-size:11px;white-space:nowrap}.stream-field small{font-size:10px;color:var(--muted)}
.stream-lab pre.stream-hex{margin:10px 0;padding:10px 12px;background:var(--surface-2);border:1px solid var(--line);border-radius:4px;max-width:100%;overflow-x:auto;font:11px/1.8 var(--mono);white-space:pre;word-break:normal;overflow-wrap:normal}
.stream-hex code{background:none;color:var(--ink);font:inherit;white-space:pre;word-break:normal;overflow-wrap:normal;padding:0}
.stream-process{border-top:1px solid var(--line-soft);padding-top:7px}.stream-lab :is(button,[tabindex]):focus-visible{outline:2px solid var(--brand);outline-offset:3px}
@media(max-width:620px){.stream-lab{padding:12px;font-size:13px}.stream-scene{grid-template-columns:minmax(0,1fr) 52px minmax(0,1fr);gap:5px}.stream-machine{padding:7px}.stream-machine header{gap:2px;display:block}.stream-machine header strong{display:block;font-size:12px}.stream-machine header span{font-size:10px}.stream-machine p{font-size:10px}.stream-memory{grid-template-columns:repeat(2,minmax(0,1fr));gap:3px}.stream-page b{font-size:12px}.stream-page small{font-size:9px}.stream-packet{font-size:9px;padding:5px 2px;white-space:normal;line-height:1.3;max-width:none;width:68px;top:-22px}.stream-lane,.stream-lane p{font-size:9px}.stream-controls{gap:5px}.stream-controls button{padding:6px 9px;font-size:12px;min-height:38px}.stream-select{padding:7px;font-size:11px}.stream-field{padding:6px 8px}.stream-panel h4 small{display:block;margin-left:0}.stream-status{font-size:12px}}
@media(prefers-reduced-motion:reduce){.stream-lab *{scroll-behavior:auto!important;transition:none!important}}
@media print{.stream-controls,.stream-scene{display:none!important}.stream-panel[hidden]{display:block!important}.stream-fields-scroll,.stream-hex{overflow:visible;white-space:pre-wrap}.stream-panel{break-inside:avoid}}