/* ============================================================
   STRATUM · ATRIUM — production stylesheet
   Tokens are managed by the theme engine (theme.js): four grounds
   (vellum / stone / nocturne / blueprint) × circadian daylight
   blending × AA-floor contrast switch. No hardcoded hex below the
   token block; WCAG 2.1 AA is the floor, High strengthens beyond it.
   ============================================================ */

:root {
  --table:#ddd9cf; --paper:#e9e6dd; --paper-cool:#e3e2da; --paper-warm:#f0eee6; --surface:#f3f1ea;
  --ink:#2a2620; --ink-2:#555047; --ink-3:#777063;
  --line:#c9c4b6; --line-strong:#b3ad9c; --shadow:rgba(40,34,26,.26);
  --accent-intent:#6c520f; --accent-verify:#3f5a36; --accent-human:#a23c27; --accent-explain:#2f6088;
  --human-fill:#b5462f; --human-fill-ink:#f6efe5;
  --s-working:#d0b25c; --s-session:#97ab74; --s-episodic:#6c93a9; --s-semantic:#c2855b; --s-preference:#a67f9f; --s-archive:#948872;
  --sheet-max:1560px; --hair:1px; --text-scale:1;
  --display:"Fraunces",Georgia,serif; --body:"Archivo",system-ui,sans-serif; --mono:"IBM Plex Mono",ui-monospace,monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; font-size: calc(100% * var(--text-scale)); }
body {
  margin: 0; font-family: var(--body); color: var(--ink); background: var(--table); line-height: 1.5;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  transition: background-color 400ms ease, color 400ms ease;
}
h1, h2, h3, h4, p { margin: 0; font-weight: 400; }
button { font: inherit; color: inherit; cursor: pointer; border: none; background: none; padding: 0; }
a { color: inherit; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.mono-label { font-family: var(--mono); font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: var(--ink-2); }
:focus-visible { outline: 2px solid var(--accent-intent); outline-offset: 2px; border-radius: 2px; }
[hidden] { display: none !important; }

html[data-motion="still"] *, html[data-motion="still"] *::before, html[data-motion="still"] *::after {
  animation: none !important; transition: none !important;
}
html[data-motion="reduced"] .ambient { animation: none !important; }

/* ---------- shell ---------- */
.app-shell {
  display: flex; flex-direction: column; min-height: 100vh; max-width: var(--sheet-max); margin: 0 auto;
  background: var(--paper); border-inline: var(--hair) solid var(--line-strong); position: relative; overflow: hidden;
}
.app-grid { display: grid; grid-template-columns: 264px 1fr 348px; flex: 1; min-height: 0; }
.panel { display: flex; flex-direction: column; border-right: var(--hair) solid var(--line-strong); background: var(--paper); min-height: 0; }
.panel:last-child { border-right: none; }

@media (min-width: 1025px) {
  .app-shell { height: 100vh; }
  .panel { overflow-y: auto; }
}
@media (max-width: 1024px) {
  .app-grid { grid-template-columns: 1fr; }
  .panel { border-right: none; border-bottom: var(--hair) solid var(--line-strong); }
}

/* ---------- top bar ---------- */
.top-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .8rem 1.4rem;
  padding: .8rem 1.4rem; border-bottom: var(--hair) solid var(--line-strong); background: var(--paper-warm);
}
.brand { display: flex; align-items: baseline; gap: .8rem; }
.wordmark { font-family: var(--display); font-weight: 560; font-size: 1.55rem; letter-spacing: .12em; color: var(--ink); line-height: 1; }
.sub-mark { font-family: var(--mono); font-size: .6rem; color: var(--accent-intent); letter-spacing: .18em; text-transform: uppercase; }
.log-context { display: flex; align-items: center; gap: .7rem; }
.log-name { font-size: .8rem; font-weight: 600; background: var(--surface); border: var(--hair) solid var(--line-strong); padding: .18rem .5rem; border-radius: 2px; }
.top-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-left: auto; }

.hbtn {
  display: inline-flex; align-items: center; gap: .45rem; min-height: 40px; padding: .35rem .75rem;
  background: var(--paper); border: var(--hair) solid var(--line-strong); font-size: .78rem; font-weight: 500;
  transition: all 140ms ease; border-radius: 3px;
}
.hbtn:hover { background: var(--paper-cool); transform: translateY(-1px); border-color: var(--ink-3); }
.hbtn.small { min-height: 30px; font-size: .7rem; padding: .2rem .55rem; }

.btn {
  min-height: 40px; padding: .4rem .85rem; border: var(--hair) solid var(--line-strong);
  background: var(--paper); font-size: .82rem; font-weight: 500; transition: all 140ms ease; border-radius: 3px;
}
.btn:hover { background: var(--paper-cool); transform: translateY(-1px); border-color: var(--ink-3); }
.btn.primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn.primary:hover { filter: brightness(1.2); }
.btn.danger { border-color: var(--accent-human); color: var(--accent-human); }

/* ---------- epistemic badges ---------- */
.epi {
  display: inline-flex; align-items: center; gap: .35rem; padding: .2rem .5rem; border-radius: 2px;
  font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; text-transform: uppercase;
  border: var(--hair) solid transparent; white-space: nowrap; transition: all 150ms ease;
}
.epi::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.epi.axiomatic { color: var(--accent-intent); border-color: var(--accent-intent); background: color-mix(in srgb, var(--accent-intent) 13%, transparent); }
.epi.verified { color: var(--accent-verify); border-color: var(--accent-verify); background: color-mix(in srgb, var(--accent-verify) 13%, transparent); }
.epi.provisional { color: var(--ink-2); border-color: var(--line-strong); background: var(--surface); }
.epi.narrative { color: var(--ink-3); border-color: var(--line); background: transparent; }
.epi.blocked { color: var(--accent-human); border-color: var(--accent-human); background: color-mix(in srgb, var(--accent-human) 12%, transparent); }

/* ---------- left rail ---------- */
.panel-log { padding: 1.3rem 1.1rem; background: var(--paper-warm); gap: 1.3rem; }
.strata-stack { display: flex; flex-direction: column; gap: 4px; }
.strata-layer { display: grid; grid-template-columns: 18px 1fr; gap: .8rem; align-items: stretch; min-height: 56px; }
.strata-layer.xtall { min-height: 108px; }
.strata-layer.planned { opacity: .5; }
.strata-layer.live .s-name { color: var(--accent-intent); }
.s-visual {
  position: relative; border-radius: 2px; box-shadow: inset 2px 0 6px rgba(0,0,0,.18);
  background-image: repeating-linear-gradient(rgba(0,0,0,.13) 0, rgba(0,0,0,.13) 1px, transparent 1px, transparent 5px);
  transition: background-color 300ms ease;
}
.s-visual::after { content: ""; position: absolute; top: 0; right: -3px; bottom: 0; width: 3px; background: inherit; filter: brightness(.72); }
.s-1 .s-visual { background-color: var(--s-working); }
.s-2 .s-visual { background-color: var(--s-session); }
.s-3 .s-visual { background-color: var(--s-episodic); }
.s-4 .s-visual { background-color: var(--s-semantic); }
.s-5 .s-visual { background-color: var(--s-preference); }
.s-6 .s-visual { background-color: var(--s-archive); }
.s-info { padding: .3rem 0; display: flex; flex-direction: column; }
.s-name { font-family: var(--mono); font-size: .7rem; font-weight: 600; letter-spacing: .1em; color: var(--ink); }
.s-meta { font-size: .66rem; color: var(--ink-2); margin-top: .2rem; line-height: 1.35; }
.s-stat { font-size: .62rem; color: var(--ink-3); margin-top: auto; padding-top: .3rem; }
.v2chip {
  font-size: .5rem; letter-spacing: .1em; border: var(--hair) solid var(--line-strong);
  padding: .05rem .3rem; border-radius: 2px; color: var(--ink-3); vertical-align: middle;
}

.epoch-box { border-top: var(--hair) solid var(--line-strong); padding-top: 1.1rem; display: grid; gap: .55rem; }
.epoch-box input[type="range"] { width: 100%; accent-color: var(--ink); height: 24px; }
.scrub-row { display: flex; align-items: center; justify-content: space-between; gap: .5rem; }
.scrub-row .mono { font-size: .68rem; color: var(--ink-2); }
.rail-note { font-size: .68rem; color: var(--ink-3); line-height: 1.45; margin: 0; }

/* ---------- center ---------- */
.panel-atrium { background: var(--paper); }
.atrium-body { padding: 1.5rem 1.5rem 2.5rem; display: flex; flex-direction: column; gap: 1.5rem; }

.arbitration {
  border: var(--hair) solid var(--accent-human); border-left: 5px solid var(--accent-human);
  background: color-mix(in srgb, var(--accent-human) 6%, var(--paper-warm));
  border-radius: 3px; padding: 1.1rem 1.2rem; display: flex; flex-direction: column; gap: .8rem;
  animation: slidedown .4s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.arb-top { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: space-between; align-items: flex-start; }
.arb-title { font-family: var(--display); font-style: italic; font-size: 1.3rem; color: var(--accent-human); }
.arb-list { display: flex; flex-direction: column; gap: .5rem; }
.arb-item {
  display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; font-size: .85rem;
  padding: .55rem .7rem; background: var(--paper); border: var(--hair) solid var(--line); border-radius: 3px;
}
.arb-item .why { color: var(--ink-2); font-size: .75rem; }
.arb-item button { margin-left: auto; }

.units-head { display: flex; align-items: baseline; justify-content: space-between; border-bottom: var(--hair) solid var(--line); padding-bottom: .5rem; gap: 1rem; }
.units-head h2 { font-family: var(--display); font-weight: 500; font-size: 1.12rem; }
.units-hint { font-family: var(--body); font-size: .72rem; color: var(--ink-3); font-style: italic; margin-left: .5rem; }
.unit-list { display: flex; flex-direction: column; gap: .7rem; margin-top: .9rem; }
.unit-empty { font-size: .8rem; color: var(--ink-3); font-style: italic; padding: .6rem 0; }

.unit-row {
  display: grid; grid-template-columns: 1fr auto; gap: .35rem 1rem; align-items: center;
  padding: .8rem .9rem; background: var(--paper); border: var(--hair) solid var(--line);
  border-radius: 3px; transition: all 150ms cubic-bezier(0.16, 1, 0.3, 1); cursor: pointer; text-align: left; width: 100%;
}
.unit-row:hover { border-color: var(--accent-intent); transform: translateX(3px); background: var(--surface); }
.unit-row.inactive { opacity: .55; }
.u-title { font-weight: 500; font-size: .92rem; color: var(--ink); line-height: 1.45; }
.u-meta { grid-column: 1 / -1; font-size: .72rem; color: var(--ink-2); display: flex; flex-wrap: wrap; gap: .35rem .9rem; align-items: center; }
.u-meta .mono { font-size: .66rem; color: var(--ink-3); }
.chain-pips { letter-spacing: .18em; color: var(--accent-explain); }

/* ---------- right rail ---------- */
.panel-roster { padding: 1.3rem; background: var(--paper-cool); gap: 1.5rem; }
.roster-head { font-family: var(--mono); font-size: .65rem; letter-spacing: .15em; text-transform: uppercase; color: var(--ink-2); margin-bottom: .9rem; }
.tier-legend { display: grid; gap: .45rem; }
.tier-row { display: flex; align-items: center; gap: .6rem; font-size: .78rem; }
.tier-row .count { margin-left: auto; font-family: var(--mono); font-size: .72rem; color: var(--ink-2); }

.new-entry form { display: grid; gap: .6rem; }
.new-entry textarea {
  width: 100%; resize: vertical; font: inherit; font-size: .85rem; color: var(--ink);
  background: var(--paper); border: var(--hair) solid var(--line-strong); border-radius: 3px; padding: .55rem .65rem;
}
.entry-row { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.entry-check { display: inline-flex; align-items: center; gap: .4rem; cursor: pointer; }

.telemetry { border-top: var(--hair) solid var(--line-strong); padding-top: 1.2rem; }
.feed-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .65rem; }
.feed-item { display: grid; grid-template-columns: 44px 1fr; gap: .55rem; font-size: .78rem; color: var(--ink-2); animation: fadein .3s ease both; }
.feed-seq { font-family: var(--mono); font-size: .62rem; color: var(--ink-3); padding-top: .12rem; }
.feed-item b { font-family: var(--display); font-style: italic; font-weight: 500; color: var(--ink); }
.feed-item .etype { font-family: var(--mono); font-size: .6rem; letter-spacing: .06em; text-transform: uppercase; }
.feed-item .ok { color: var(--accent-verify); font-weight: 600; }
.feed-item .warn { color: var(--accent-human); font-weight: 600; }
.feed-item button { text-decoration: underline dotted; text-underline-offset: 3px; }

/* ---------- weather ---------- */
.sys-weather { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--paper-warm); border-top: var(--hair) solid var(--line-strong); }
.w-cell { display: flex; align-items: center; gap: .6rem; justify-content: center; padding: .6rem 1rem; border-right: var(--hair) solid var(--line); min-height: 48px; }
.w-cell:last-child { border-right: none; }
.w-label { font-family: var(--mono); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.w-val { font-size: .78rem; color: var(--ink); font-weight: 500; }
.w-val.alert { color: var(--accent-human); font-weight: 600; }
@media (max-width: 760px) { .sys-weather { grid-template-columns: 1fr 1fr; } .w-cell:nth-child(2) { border-right: none; } }

/* ---------- inspector ---------- */
.inspector-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 440px; max-width: 100vw;
  background: var(--paper); border-left: var(--hair) solid var(--line-strong);
  z-index: 100; transform: translateX(101%); transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 40px var(--shadow); display: flex; flex-direction: column;
}
.inspector-drawer.open { transform: translateX(0); }
.drawer-header {
  padding: 1.1rem 1.2rem; border-bottom: var(--hair) solid var(--line-strong); background: var(--paper-warm);
  display: flex; align-items: center; justify-content: space-between;
}
.drawer-header h2 { font-family: var(--display); font-weight: 500; font-size: 1.2rem; }
.drawer-body { padding: 1.3rem; display: flex; flex-direction: column; gap: 1.2rem; overflow-y: auto; flex: 1; }
.x {
  min-width: 36px; min-height: 36px; border: var(--hair) solid var(--line-strong); background: var(--paper);
  display: inline-flex; align-items: center; justify-content: center; border-radius: 3px;
}

.insp-id-block { border-bottom: var(--hair) solid var(--line-strong); padding-bottom: .9rem; }
.insp-id-block h3 { font-family: var(--display); font-size: 1.35rem; margin: .2rem 0; overflow-wrap: anywhere; }
.insp-narrative { font-size: .86rem; color: var(--ink-2); line-height: 1.55; }
.insp-grid { display: grid; grid-template-columns: auto 1fr; gap: .4rem .9rem; font-size: .78rem; align-items: baseline; }
.insp-grid dt { font-family: var(--mono); font-size: .62rem; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); }
.insp-grid dd { margin: 0; color: var(--ink); overflow-wrap: anywhere; }

.lineage-box { background: var(--surface); border: var(--hair) solid var(--line); padding: .9rem 1rem; border-radius: 3px; display: grid; gap: .7rem; }
.evidence-node { display: flex; flex-direction: column; gap: .2rem; padding-left: .9rem; border-left: 2px solid var(--accent-verify); }
.evidence-node.cited { border-left-color: var(--line-strong); }
.evidence-node .ekind { font-size: .72rem; font-weight: 600; }
.evidence-node .eref { font-family: var(--mono); font-size: .66rem; color: var(--ink-2); overflow-wrap: anywhere; }
.echeck { font-family: var(--mono); font-size: .58rem; letter-spacing: .08em; text-transform: uppercase; }
.echeck.checked { color: var(--accent-verify); }
.echeck.cited { color: var(--ink-3); }

/* the Qliphothic face — shadow trace beneath the clean record */
.shadow-box {
  border: var(--hair) dashed var(--line-strong); border-radius: 3px; padding: .9rem 1rem;
  background: color-mix(in srgb, var(--ink) 4%, transparent); display: grid; gap: .55rem;
}
.shadow-box .sh-head { display: flex; align-items: center; gap: .6rem; }
.shadow-box .sh-tag { font-family: var(--mono); font-size: .58rem; letter-spacing: .1em; padding: .1rem .35rem; border: var(--hair) solid currentColor; border-radius: 2px; }
.sh-tag.trace { color: var(--accent-verify); }
.sh-tag.recon { color: var(--accent-human); }
.shadow-box .sh-text { font-size: .8rem; color: var(--ink-2); line-height: 1.55; font-style: italic; }
.certainty { display: grid; gap: .25rem; }
.certainty .bar { height: 5px; border: var(--hair) solid var(--line-strong); border-radius: 3px; overflow: hidden; background: var(--paper); }
.certainty .fill { height: 100%; background: var(--accent-explain); }
.ghost-list { display: flex; flex-wrap: wrap; gap: .35rem; }
.ghost-edge {
  font-family: var(--mono); font-size: .62rem; padding: .15rem .45rem; border-radius: 2px;
  border: var(--hair) dashed var(--ink-3); color: var(--ink-2); text-decoration: line-through;
}

.insp-actions { display: grid; gap: .55rem; border-top: var(--hair) solid var(--line-strong); padding-top: 1rem; }
.insp-actions .note { font-size: .7rem; color: var(--ink-3); line-height: 1.45; }
.act-evidence { display: grid; gap: .4rem; }
.text-input {
  width: 100%; font: inherit; font-size: .82rem; color: var(--ink); background: var(--paper);
  border: var(--hair) solid var(--line-strong); border-radius: 3px; padding: .5rem .6rem;
}

/* ---------- dialogs ---------- */
dialog.settings { width: min(560px, 94vw); padding: 0; border: 1.5px solid var(--ink); background: var(--paper); color: var(--ink); box-shadow: 0 30px 80px -30px rgba(0,0,0,.6); border-radius: 4px; }
dialog.settings.narrow { width: min(430px, 94vw); }
dialog.settings::backdrop { background: color-mix(in srgb, var(--ink) 62%, transparent); }
.settings header { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding: 1rem 1.2rem; border-bottom: var(--hair) solid var(--line-strong); background: var(--paper-warm); }
.settings header h2 { font-family: var(--display); font-weight: 500; font-size: 1.3rem; }
.settings .body { padding: 1.1rem 1.2rem 1.3rem; display: grid; gap: 1.05rem; max-height: 70vh; overflow: auto; }
.settings .hint { font-size: .74rem; color: var(--ink-3); margin: .1rem 0 .5rem; }
.settings footer { display: flex; gap: .6rem; justify-content: flex-end; padding: .9rem 1.2rem; border-top: var(--hair) solid var(--line-strong); background: var(--paper-warm); }
fieldset { border: var(--hair) solid var(--line); padding: .7rem .85rem .85rem; margin: 0; border-radius: 3px; }
fieldset legend { font-family: var(--mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); padding: 0 .4rem; }
.segmented { display: flex; flex-wrap: wrap; border: var(--hair) solid var(--line-strong); width: fit-content; max-width: 100%; border-radius: 3px; overflow: hidden; }
.segmented label { position: relative; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 .9rem; font-size: .8rem; font-weight: 500; border-right: var(--hair) solid var(--line-strong); cursor: pointer; background: var(--paper); transition: background-color 120ms ease; }
.segmented.small label { min-height: 34px; padding: 0 .7rem; font-size: .74rem; }
.segmented label:last-child { border-right: none; }
.segmented input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.segmented label:hover { background: var(--paper-cool); }
.segmented label:has(input:checked) { background: var(--ink); color: var(--paper); }
.segmented label:has(input:focus-visible) { outline: 2px solid var(--ink); outline-offset: 2px; }
.daylight { display: grid; gap: .5rem; }
.daylight .row { display: flex; align-items: center; gap: .8rem; }
.daylight input[type=range] { flex: 1; accent-color: var(--ink); height: 24px; }
.daylight input[type=range]:disabled { opacity: .45; }
.daylight .val { font-size: .68rem; color: var(--ink-2); min-width: 9.5em; text-align: right; }
.daylight .auto { display: inline-flex; align-items: center; gap: .5rem; font-size: .8rem; min-height: 36px; }
.gradient-rail { height: 8px; border: var(--hair) solid var(--line-strong); background: linear-gradient(90deg, #eceadf, #e6dcc6, #c9b58f, #6c5f4d, #2a2520); border-radius: 3px; }

/* ---------- toasts ---------- */
.toasts { position: fixed; bottom: 1.2rem; left: 50%; transform: translateX(-50%); display: grid; gap: .5rem; z-index: 200; width: min(560px, 92vw); }
.toast {
  background: var(--ink); color: var(--paper); border-radius: 4px; padding: .7rem 1rem;
  font-size: .82rem; box-shadow: 0 12px 40px -12px rgba(0,0,0,.5); animation: fadein .25s ease both;
  display: flex; gap: .7rem; align-items: baseline;
}
.toast .badge { font-family: var(--mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; flex: none; }
.toast.err .badge { color: #f2b8a8; }
.toast.ok .badge { color: #b9d8ae; }

@keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@keyframes slidedown { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }