:root {
  --bg: #0b1424; --panel: #111d33; --panel-2: #16253f; --line: #243553;
  --text: #e8eef9; --muted: #a9b7d0; --accent: #5aa2ff; --accent-ink: #06101f; --danger: #ffb4b4; --ok: #8fe3b0;
}
* { box-sizing: border-box; }
html { color-scheme: dark; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
.wrap { width: min(960px, 100% - 2rem); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-ink); padding: .5rem 1rem; z-index: 10; }
.skip:focus { left: 0; }
.top { border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; min-height: 3.5rem; gap: 1rem; }
.brand { font-weight: 700; letter-spacing: .04em; font-size: 1.15rem; }
.brand span { color: var(--accent); }
.account { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.hero { padding: 3.5rem 0 1.5rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; color: var(--accent); font-size: .8rem; margin: 0 0 .5rem; }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 1rem; }
h2 { font-size: 1.35rem; margin: 2.5rem 0 1rem; }
h3 { font-size: 1.05rem; margin: 0 0 .4rem; }
.lead { font-size: 1.2rem; max-width: 40rem; margin: 0 0 .5rem; }
.sub, .muted { color: var(--muted); }
.small { font-size: .9rem; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 1.5rem; margin-top: 1.5rem; }
.card h2 { margin-top: 0; }
label { display: block; font-weight: 600; margin-bottom: .4rem; }
.row { display: flex; gap: .75rem; flex-wrap: wrap; }
input[type=email], input[type=text] { flex: 1 1 16rem; min-width: 0; padding: .7rem .85rem; border-radius: 8px;
  border: 1px solid #3a4f77; background: #0d1830; color: var(--text); font: inherit; }
input::placeholder { color: #7f90b0; }
.btn { padding: .7rem 1.25rem; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink);
  font: inherit; font-weight: 700; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); padding: .4rem .9rem; font-weight: 600; }
.btn:disabled, .link:disabled { opacity: .55; cursor: not-allowed; }
.link { background: none; border: 0; color: var(--accent); font: inherit; text-decoration: underline; cursor: pointer; padding: 0; margin-right: 1.25rem; }
:focus-visible { outline: 3px solid #ffd479; outline-offset: 2px; }
.error { color: var(--danger); min-height: 1.4em; margin: .5rem 0 0; }
#status:not(:empty) { margin-top: 1rem; padding: .75rem 1rem; border: 1px solid var(--line); border-left: 4px solid var(--accent);
  background: var(--panel-2); border-radius: 8px; }
#status.warn { border-left-color: #ffd479; }
.grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.1rem; }
.tile p { margin: .25rem 0 0; color: var(--muted); font-size: .95rem; }
.badge { display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  padding: .1rem .5rem; border-radius: 999px; border: 1px solid; margin-left: .35rem; vertical-align: middle; }
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.soon { color: var(--muted); border-color: #4a5c80; }
.steps { padding-left: 1.2rem; }
.steps li { margin-bottom: .5rem; }
.results { list-style: none; padding: 0; margin: 1rem 0 0; }
.results li { border-top: 1px solid var(--line); padding: .9rem 0; }
.results .name { font-weight: 700; }
.results .meta { color: var(--muted); font-size: .85rem; }
.results .text { margin: .3rem 0 0; color: #cfd9ee; }
.foot { padding: 2rem 0 3rem; }
[hidden] { display: none !important; }
@media (max-width: 520px) { .hero { padding-top: 2rem; } .btn { width: 100%; } }
@media (prefers-reduced-motion: no-preference) { .btn { transition: filter .15s; } .btn:hover:not(:disabled) { filter: brightness(1.1); } }

/* ---- How Atlas AI works (architecture section): text + border style carry the status, not colour alone ---- */
.arch { margin-top: 1rem; }
.lead2 { max-width: 44rem; color: var(--muted); margin: 0 0 1rem; }
.legend { list-style: none; margin: 0 0 1.25rem; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; font-size: .9rem; color: var(--muted); }
.flow { list-style: none; margin: 0; padding: 0; }
.node { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: .65rem .9rem; position: relative; }
.node h3, .node h4 { margin: 0 0 .25rem; font-size: 1rem; }
.node p { margin: 0; color: var(--muted); font-size: .92rem; }
.flow > .node + .node { margin-top: 1.2rem; }
.flow > .node + .node::before { content: ""; position: absolute; left: 50%; top: -.95rem; margin-left: -6px; border: 6px solid transparent; border-top: 8px solid #4a5c80; border-bottom: 0; }
.n-impl { border-left: 4px solid var(--ok); }
.n-dev { border-left: 4px dashed var(--accent); }
.n-plan { border-left: 4px dotted #7f90b0; background: transparent; }
.badge.st-impl { color: var(--ok); border-color: var(--ok); }
.badge.st-dev { color: var(--accent); border-color: var(--accent); border-style: dashed; }
.badge.st-plan { color: var(--muted); border-color: #7f90b0; border-style: dotted; }
.lanes-title { margin: 1.75rem 0 .75rem; }
.lanes { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.lane { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: .85rem; }
.lane > h3 { text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; color: var(--muted); margin-bottom: .75rem; }
.flow.inner > .node + .node { margin-top: 1.1rem; }

/* ---- Workspace tabs and the research workflow (development) ---- */
.tabs { display: flex; gap: .5rem; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin: -.25rem 0 1.25rem; padding-bottom: .5rem; }
.tab { background: transparent; color: var(--muted); border: 1px solid transparent; border-radius: 8px; padding: .5rem .9rem; font: inherit; font-weight: 600; cursor: pointer; }
.tab[aria-selected="true"] { color: var(--text); border-color: var(--accent); background: var(--panel-2); }
.tab:hover { color: var(--text); }
input[type=text]#research-company { width: 100%; }
.row.split { margin-top: 1rem; }
.field { flex: 1 1 14rem; min-width: 0; }
.field input[type=text] { width: 100%; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; background: #0d1830; border: 1px solid var(--line);
  border-radius: 4px; padding: .05rem .35rem; overflow-wrap: anywhere; }
.notice { border: 1px solid var(--line); border-left: 4px solid #ffd479; background: var(--panel-2); border-radius: 8px; padding: .6rem .9rem; margin: 1rem 0; }
.lookup { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.recent { list-style: none; margin: .5rem 0 0; padding: 0; display: grid; gap: .4rem; }
.recent li { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.recent .link { margin-right: 0; overflow-wrap: anywhere; text-align: left; }
.monitor { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.monitor h3 { font-size: 1.15rem; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: .5rem 1.25rem; margin: 0 0 .75rem; }
.facts div { min-width: 0; }
.facts dt { color: var(--muted); font-size: .85rem; }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.badge.s-running, .badge.s-pending { color: var(--accent); border-color: var(--accent); }
.badge.s-completed { color: var(--ok); border-color: var(--ok); }
.badge.s-failed, .badge.s-timed_out, .badge.s-cancelled, .badge.s-blocked { color: var(--danger); border-color: var(--danger); }
.badge.s-ambiguous { color: #ffd479; border-color: #ffd479; border-style: dashed; }
.tasklist { list-style: none; margin: .75rem 0 0; padding: 0; display: grid; gap: .5rem; }
.tasklist li { background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; padding: .6rem .8rem; overflow-wrap: anywhere; }
.spinner { display: inline-block; width: .9em; height: .9em; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%;
  vertical-align: -.1em; margin-right: .5rem; }
@media (prefers-reduced-motion: no-preference) { .spinner { animation: spin 1s linear infinite; } @keyframes spin { to { transform: rotate(360deg); } } }
.companies { display: grid; gap: .5rem; margin-top: .75rem; }
details.company { background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; padding: .5rem .8rem; }
details.company > summary { cursor: pointer; overflow-wrap: anywhere; }
.error-note { color: var(--danger); margin: .4rem 0; overflow-wrap: anywhere; }
.outcome { border: 1px solid var(--line); border-left: 4px solid var(--accent); background: var(--panel-2); border-radius: 8px; padding: .75rem 1rem; margin: 1rem 0; }
.outcome.ok { border-left-color: var(--ok); }
.outcome.bad { border-left-color: var(--danger); }
.outcome.unknown { border-left-color: #ffd479; border-left-style: dashed; }
.outcome h4 { margin: 0 0 .25rem; font-size: 1rem; }
.report h4 { margin: 1.25rem 0 .4rem; font-size: 1rem; }
.report h5 { margin: .75rem 0 .2rem; font-size: .9rem; color: var(--muted); }
.report p { margin: .25rem 0; overflow-wrap: anywhere; }
.report ul { margin: .25rem 0 .5rem; padding-left: 1.2rem; }
.report li { margin-bottom: .4rem; overflow-wrap: anywhere; }
.report a { color: var(--accent); }
.claim .badge { margin-left: 0; margin-right: .4rem; }
.badge.c-verified { color: var(--ok); border-color: var(--ok); }
.badge.c-inferred { color: var(--accent); border-color: var(--accent); border-style: dashed; }
.badge.c-unknown { color: var(--muted); border-color: #7f90b0; border-style: dotted; }
.srcs { color: var(--muted); font-size: .85rem; }
select, textarea { display: block; width: 100%; max-width: 100%; padding: .7rem .85rem; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2);
  color: var(--text); font: inherit; margin-bottom: .75rem; }
textarea { resize: vertical; min-height: 4rem; }
label.check { display: flex; gap: .5rem; align-items: center; font-weight: 400; margin-top: .5rem; }
.badge.s-waiting_for_approval, .badge.s-approved { color: #ffd479; border-color: #ffd479; }
.badge.s-rejected, .badge.s-expired { color: var(--danger); border-color: var(--danger); }
.badge.s-consumed { color: var(--ok); border-color: var(--ok); }
.params { margin: .25rem 0 .5rem; padding-left: .75rem; border-left: 2px solid var(--line); }
.approval-note { min-height: 1.2em; }
@media (max-width: 520px) { .tab { flex: 1 1 100%; text-align: left; } .facts { grid-template-columns: 1fr; } }

/* ---- Target architecture diagram (4-state status: text label + border style carry it, not colour alone) ---- */
.badge.st-ver { color: var(--ok); border-color: var(--ok); }
.badge.st-pend { color: var(--accent); border-color: var(--accent); border-style: dashed; }
.badge.st-ext { color: #ffd479; border-color: #ffd479; }
.dg-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); padding: .5rem; }
.dg { display: block; width: 100%; min-width: 880px; height: auto; font-family: inherit; }
.dg-zone { fill: none; stroke: #4a5c80; stroke-width: 1.4; stroke-dasharray: 8 5; }
.dg-zone.db { stroke: var(--accent); stroke-dasharray: none; stroke-width: 2; }
.dg-zone-label { fill: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .06em; }
.dg-box { fill: var(--panel-2); stroke-width: 2; }
.s-ver .dg-box { stroke: var(--ok); }
.s-pend .dg-box { stroke: var(--accent); stroke-dasharray: 7 4; }
.s-plan .dg-box { stroke: #7f90b0; stroke-dasharray: 2 4; fill: transparent; }
.s-ext .dg-box { stroke: #ffd479; }
.n-note .dg-box { fill: transparent; stroke: var(--line); stroke-width: 1; }
.dg-title { fill: var(--text); font-size: 13px; font-weight: 700; }
.dg-sub { fill: var(--muted); font-size: 11px; }
.dg-note { fill: var(--muted); font-size: 11px; }
.dg-tag { font-size: 9.5px; font-weight: 700; letter-spacing: .07em; }
.s-ver .dg-tag { fill: var(--ok); }
.s-pend .dg-tag { fill: var(--accent); }
.s-plan .dg-tag { fill: var(--muted); }
.s-ext .dg-tag { fill: #ffd479; }
.dg-line { fill: none; stroke: #9fb2d4; stroke-width: 1.8; }
.dg-line.opt { stroke-dasharray: 6 4; stroke: #7f90b0; }
.dg-arrow { fill: #9fb2d4; }
.dg-badge circle { fill: var(--accent); }
.dg-badge text { fill: var(--accent-ink); font-size: 11px; font-weight: 700; text-anchor: middle; }
.flows { padding-left: 0; margin: 0 0 1rem; list-style: none; display: grid; gap: .5rem; counter-reset: none; }
.flows li { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: .5rem .75rem .5rem 2.6rem; position: relative; font-size: .95rem; color: var(--muted); }
.flows li::before { content: attr(value); position: absolute; left: .65rem; top: .5rem; width: 1.5rem; height: 1.5rem; border-radius: 50%; background: var(--accent); color: var(--accent-ink);
  font-weight: 700; font-size: .8rem; display: flex; align-items: center; justify-content: center; }
.flows strong { color: var(--text); }
.owns { margin: 0 0 1rem; padding-left: 1.2rem; }
.owns li { margin-bottom: .35rem; color: var(--muted); }
.owns strong { color: var(--text); }
.comps { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; margin: 0 0 .75rem; padding: .25rem .9rem; }
.comps > summary { cursor: pointer; font-weight: 700; padding: .5rem 0; }
.comp-list { list-style: none; margin: 0 0 .5rem; padding: 0; display: grid; gap: .6rem; }
.comp { border-top: 1px solid var(--line); padding-top: .55rem; }
.comp h5 { margin: 0 0 .2rem; font-size: .98rem; }
.comp p { margin: .15rem 0; color: var(--muted); font-size: .93rem; }
@media (max-width: 520px) { .dg { min-width: 760px; } }

.candidate .cand-head { display: flex; gap: .6rem; align-items: center; }
.candidate input[type=checkbox] { width: 1.15rem; height: 1.15rem; flex: none; }
.candidate label.name { cursor: pointer; }