:root {
  color-scheme: dark;
  --ink: #111713;
  --ink-soft: #1a261e;
  --forest: #173b2b;
  --forest-bright: #24553d;
  --paper: #e8e0cb;
  --paper-deep: #d5c9aa;
  --paper-ink: #22261f;
  --muted: #8f9d91;
  --line: rgba(232, 224, 203, 0.17);
  --brass: #c29c55;
  --red: #b64b3b;
  --red-dark: #792d2d;
  --cyan: #80b9ad;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.34);
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html { background: #09100c; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--paper);
  font-family: var(--sans);
  background:
    radial-gradient(circle at 68% -10%, rgba(49, 101, 70, 0.22), transparent 43%),
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(255, 255, 255, 0.018) 80px),
    var(--ink);
}

button, select { font: inherit; }
button { color: inherit; }
button:focus-visible, select:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

.app-shell { min-height: 100vh; animation: reveal 540ms ease-out both; }

@keyframes reveal {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.masthead {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 38px;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 19, 14, 0.88);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand-lockup { display: flex; align-items: center; gap: 18px; }
.brand-seal {
  width: 48px; height: 48px; border: 1px solid var(--brass); color: var(--brass);
  display: grid; place-items: center; font: 27px var(--serif); transform: rotate(-3deg);
  box-shadow: inset 0 0 0 4px var(--ink), inset 0 0 0 5px rgba(194, 156, 85, 0.45);
}
.brand-lockup h1 { font: 600 20px/1.2 var(--serif); letter-spacing: 0.08em; margin: 5px 0 0; }
.eyebrow, .section-kicker { margin: 0; color: var(--brass); font: 10px/1.4 var(--mono); letter-spacing: 0.18em; text-transform: uppercase; }
.date-block { text-align: right; border-left: 1px solid var(--line); padding-left: 24px; white-space: nowrap; }
.date-block span { display: block; color: var(--muted); font-size: 11px; }
.date-block strong { font: 18px var(--mono); color: var(--paper); }

.status-ribbon {
  min-height: 58px;
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  border-bottom: 1px solid var(--line);
  background: #0d1510;
}
.status-ribbon > div { padding: 11px 24px; border-right: 1px solid var(--line); }
.status-ribbon span { display: block; color: var(--muted); font-size: 10px; letter-spacing: 0.08em; }
.status-ribbon strong { display: block; margin-top: 2px; font: 14px var(--mono); }
.status-ribbon .ribbon-alert { background: rgba(36, 85, 61, 0.26); }
.status-ribbon .ribbon-alert.critical, .status-ribbon .ribbon-alert.dead { background: rgba(121, 45, 45, 0.4); }

.app-body { min-height: calc(100vh - 148px); display: grid; grid-template-columns: 192px minmax(0, 1fr); }
.rail {
  border-right: 1px solid var(--line); padding: 26px 16px; display: flex; flex-direction: column;
  background: linear-gradient(180deg, rgba(24, 48, 34, 0.36), rgba(9, 16, 12, 0.35));
  position: sticky; top: 148px; height: calc(100vh - 148px); z-index: 10;
}
.primary-nav { display: grid; gap: 7px; }
.nav-item {
  border: 0; background: transparent; color: var(--muted); display: flex; align-items: center; gap: 16px;
  padding: 12px 13px; cursor: pointer; text-align: left; border-left: 2px solid transparent;
}
.nav-item span { font: 10px var(--mono); opacity: 0.65; }
.nav-item:hover { color: var(--paper); background: rgba(255, 255, 255, 0.03); }
.nav-item.is-current { color: var(--paper); border-left-color: var(--brass); background: linear-gradient(90deg, rgba(194, 156, 85, 0.13), transparent); }
.rail-note { margin-top: auto; padding: 16px 13px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.rail-note-label { display: block; font: 9px var(--mono); color: var(--brass); letter-spacing: 0.15em; }
.rail-note strong { display: block; margin-top: 9px; font-family: var(--serif); }
.rail-note p { color: var(--muted); font-size: 11px; margin: 5px 0 0; }
.rail-actions { display: grid; gap: 5px; margin-top: 15px; }
.text-button { border: 0; background: none; color: var(--muted); font-size: 11px; text-align: left; padding: 7px 13px; cursor: pointer; }
.text-button:hover { color: var(--paper); }
.text-button.danger:hover { color: #e88778; }

.view { padding: 32px 38px 60px; min-width: 0; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.section-heading h2, .page-intro h2 { font: 600 24px/1.2 var(--serif); letter-spacing: 0.04em; margin: 5px 0 0; }
.section-heading.compact { align-items: center; margin-bottom: 14px; }
.section-heading.compact h2 { font-size: 18px; }
.section-heading.compact > span { font: 22px var(--mono); color: var(--brass); }

.blackbox-panel {
  min-height: 300px; display: grid; grid-template-columns: minmax(0, 1fr) 300px; align-items: center;
  padding: 42px 52px; overflow: hidden; position: relative; border: 1px solid rgba(194, 156, 85, 0.34);
  background:
    linear-gradient(112deg, rgba(15, 45, 31, 0.96), rgba(10, 21, 15, 0.94)),
    repeating-linear-gradient(0deg, transparent 0 13px, rgba(255, 255, 255, 0.03) 14px);
  box-shadow: var(--shadow);
}
.blackbox-panel::after { content: "BLACK BOX / 001"; position: absolute; right: 18px; top: 16px; color: rgba(232, 224, 203, 0.2); font: 9px var(--mono); letter-spacing: 0.2em; }
.blackbox-panel.critical, .blackbox-panel.dead { border-color: rgba(182, 75, 59, 0.55); background: linear-gradient(112deg, rgba(62, 30, 26, 0.96), rgba(19, 16, 13, 0.94)); }
.blackbox-copy { max-width: 700px; position: relative; z-index: 2; }
.blackbox-copy h2 { font: 600 clamp(29px, 4vw, 50px)/1.12 var(--serif); margin: 11px 0 18px; letter-spacing: 0.02em; }
.blackbox-copy > p:not(.section-kicker) { max-width: 650px; color: #bdc9bd; line-height: 1.8; font-size: 14px; }
.blackbox-stats { display: flex; gap: 34px; margin-top: 20px; }
.blackbox-stats span { color: var(--muted); font-size: 11px; }
.blackbox-stats b { display: block; color: var(--paper); font: 18px var(--mono); }
.blackbox-orbit { width: 220px; height: 220px; position: relative; justify-self: end; display: grid; place-items: center; }
.orbit-ring { position: absolute; inset: 0; border: 1px solid rgba(194, 156, 85, 0.45); border-radius: 50%; box-shadow: 0 0 35px rgba(194, 156, 85, 0.08); }
.orbit-ring::before, .orbit-ring::after { content: ""; position: absolute; inset: 18px; border: 1px dashed rgba(128, 185, 173, 0.3); border-radius: 50%; transform: rotate(22deg); }
.orbit-ring::after { inset: 48px; transform: rotate(-33deg); }
.orbit-core { width: 88px; height: 88px; border: 1px solid var(--brass); background: #101b14; display: grid; place-items: center; align-content: center; transform: rotate(45deg); }
.orbit-core span, .orbit-core small { transform: rotate(-45deg); }
.orbit-core span { font: 24px var(--mono); }
.orbit-core small { font: 7px var(--mono); color: var(--brass); }
.blackbox-orbit > i { position: absolute; left: -12px; top: 45%; color: var(--muted); font: 10px var(--mono); }
.blackbox-orbit > b { position: absolute; right: -3px; top: 44%; color: var(--brass); font: 18px var(--mono); }

.progress-track { height: 4px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.progress-track span { display: block; height: 100%; background: var(--cyan); transition: width 420ms ease; }
.progress-track.danger span { background: var(--red); }

.command-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.55fr); gap: 26px; margin-top: 28px; }
.workboard, .decision-stack, .event-strip, .ai-stage, .archive-column, .results-ledger { border: 1px solid var(--line); background: rgba(13, 23, 17, 0.72); }
.workboard { padding: 25px; min-height: 320px; }
.decision-stack { padding: 25px; }
.turn-controls { display: flex; gap: 8px; }
.button { border: 1px solid var(--line); padding: 10px 15px; cursor: pointer; transition: 160ms ease; font-size: 12px; }
.button.primary { border-color: var(--brass); background: var(--brass); color: #17170f; font-weight: 700; }
.button.primary:hover { background: #d3ad65; transform: translateY(-1px); }
.button.secondary { background: transparent; color: var(--paper); }
.button.secondary:hover { border-color: var(--brass); color: var(--brass); }
.button:disabled { cursor: not-allowed; opacity: 0.42; transform: none; }
.button.wide { width: 100%; }
.work-list { display: grid; gap: 9px; }
.work-row { width: 100%; display: grid; grid-template-columns: 42px minmax(180px, 1fr) minmax(100px, 0.5fr); gap: 14px; align-items: center; padding: 14px; background: rgba(255, 255, 255, 0.025); border: 1px solid transparent; text-align: left; cursor: pointer; }
.work-row:hover { border-color: var(--line); }
.work-row strong, .work-row small { display: block; }
.work-row small { color: var(--muted); margin-top: 4px; font-size: 10px; }
.tier-stamp { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--tier); color: var(--tier); font: 16px var(--mono); }
.tier-stamp.ai { --tier: var(--cyan); font-size: 9px; }
.decision-card { width: 100%; display: grid; gap: 5px; padding: 13px 0; background: none; border: 0; border-bottom: 1px solid var(--line); text-align: left; cursor: pointer; }
.decision-card > span { color: var(--brass); font: 9px var(--mono); }
.decision-card small { color: var(--muted); }
.crisis-action { width: 100%; margin-top: 13px; padding: 11px; border: 1px solid var(--red); background: rgba(182, 75, 59, 0.1); color: #e88778; cursor: pointer; }
.empty-state { display: grid; min-height: 150px; place-content: center; text-align: center; color: var(--muted); }
.empty-state p { margin: 6px 0; font-size: 12px; }
.empty-state.small { min-height: 80px; }
.event-strip { margin-top: 26px; padding: 25px; }
.event-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.event-card { border-left: 2px solid var(--forest-bright); background: rgba(255, 255, 255, 0.025); padding: 14px; min-height: 118px; }
.event-card.warning, .event-card.crisis { border-left-color: var(--red); }
.event-card.ai { border-left-color: var(--cyan); }
.event-card.funding { border-left-color: var(--brass); }
.event-card > span { color: var(--muted); font: 9px var(--mono); }
.event-card strong { display: block; margin-top: 8px; font: 14px var(--serif); }
.event-card p { color: var(--muted); font-size: 10px; line-height: 1.55; margin: 7px 0 0; }

.page-intro { display: grid; grid-template-columns: minmax(300px, 1fr) minmax(260px, 0.65fr); gap: 50px; align-items: end; padding: 14px 0 27px; border-bottom: 1px solid var(--line); }
.page-intro h2 { font-size: clamp(28px, 3vw, 42px); }
.page-intro > p { color: var(--muted); line-height: 1.75; font-size: 13px; margin: 0; }
.filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0; }
.filter-group { display: flex; gap: 6px; flex-wrap: wrap; }
.filter-chip { border: 1px solid var(--line); background: transparent; color: var(--muted); padding: 7px 11px; cursor: pointer; font: 10px var(--mono); }
.filter-chip.is-on { background: var(--paper); color: var(--paper-ink); border-color: var(--paper); }
.filter-bar label { color: var(--muted); font-size: 11px; display: flex; align-items: center; gap: 8px; }
.filter-bar select { background: var(--ink-soft); color: var(--paper); border: 1px solid var(--line); padding: 7px 10px; }
.tier-shelves { display: grid; gap: 13px; }
.tier-shelf { display: grid; grid-template-columns: 104px minmax(0, 1fr); min-height: 170px; border-top: 1px solid color-mix(in srgb, var(--tier-color), transparent 55%); }
.tier-label { padding: 20px 14px 10px 0; display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.tier-label strong { color: var(--tier-color); font: 52px/0.95 var(--mono); }
.tier-label span { font: 13px var(--serif); margin-top: 12px; }
.tier-label small { color: var(--muted); font: 9px var(--mono); margin-top: 4px; }
.tier-projects { display: flex; gap: 10px; padding: 13px; overflow-x: auto; scrollbar-color: var(--forest-bright) transparent; }
.project-card { flex: 0 0 224px; min-height: 144px; padding: 15px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.025); text-align: left; cursor: pointer; transition: 160ms ease; }
.project-card:hover, .project-card.is-selected { transform: translateY(-3px); border-color: var(--tier-color); background: rgba(255, 255, 255, 0.045); }
.project-card.is-complete { background: rgba(36, 85, 61, 0.22); }
.project-card.is-active { border-color: rgba(194, 156, 85, 0.4); }
.project-card.is-danger { border-color: rgba(182, 75, 59, 0.6); }
.project-card-top { display: flex; justify-content: space-between; color: var(--muted); font-size: 9px; }
.project-card-top i { color: var(--brass); font-style: normal; }
.project-card > strong { display: block; font: 14px/1.35 var(--serif); margin-top: 14px; min-height: 38px; }
.project-card > small { color: var(--muted); font: 9px var(--mono); }
.project-card-rule { display: block; width: 26px; border-top: 1px solid var(--tier-color); margin: 10px 0; }
.project-card p { color: var(--muted); font-size: 10px; line-height: 1.45; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.ai-intro { border-bottom-color: rgba(128, 185, 173, 0.3); }
.ai-summary { display: flex; gap: 1px; margin: 22px 0; }
.ai-summary > div { flex: 1; background: rgba(128, 185, 173, 0.08); padding: 18px; }
.ai-summary span { display: block; color: var(--muted); font-size: 10px; }
.ai-summary strong { font: 32px var(--mono); color: var(--cyan); }
.ai-summary small { color: var(--muted); }
.ai-ladder { display: grid; gap: 12px; }
.ai-stage { display: grid; grid-template-columns: 90px minmax(0, 1fr) 230px; min-height: 174px; position: relative; overflow: hidden; }
.ai-stage::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--line); }
.ai-stage.is-unlocked::before, .ai-stage.is-active::before { background: var(--cyan); }
.ai-stage-number { display: grid; place-items: center; color: rgba(232, 224, 203, 0.16); font: 36px var(--mono); border-right: 1px solid var(--line); }
.ai-stage-body { padding: 24px; }
.ai-stage-body > p { color: var(--cyan); font: 9px var(--mono); letter-spacing: 0.16em; margin: 0; }
.ai-stage-body h3 { font: 24px var(--serif); margin: 7px 0; }
.ai-stage-unlock { color: var(--muted); font-size: 12px; line-height: 1.6; margin-bottom: 18px; }
.ai-stage-meta { padding: 22px; border-left: 1px solid var(--line); display: grid; align-content: center; gap: 7px; }
.ai-stage-meta > span { color: var(--muted); font: 10px var(--mono); }
.migration-tag { color: var(--cyan); font: 10px var(--mono); margin: 4px 0; }
.eval-grid, .evidence-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.eval-grid span, .evidence-grid span { padding: 8px; background: rgba(128, 185, 173, 0.08); color: var(--muted); font-size: 9px; }
.eval-grid b, .evidence-grid b { display: block; color: var(--paper); font: 14px var(--mono); margin-top: 3px; }

.archive-ledger { display: grid; grid-template-columns: minmax(0, 1.4fr) 300px; gap: 22px; margin-top: 24px; }
.archive-column, .results-ledger { padding: 24px; }
.event-list { display: grid; gap: 8px; }
.event-list .event-card { min-height: 0; }
.results-ledger { display: grid; align-content: start; gap: 24px; }
.ledger-block { border-top: 2px solid var(--forest-bright); padding-top: 14px; }
.ledger-block.warning { border-color: var(--red); }
.ledger-block > span { color: var(--muted); font-size: 10px; }
.ledger-block > strong { display: block; font: 38px var(--mono); margin: 5px 0 14px; }
.ledger-block button { display: block; width: 100%; border: 0; border-top: 1px solid var(--line); background: none; padding: 9px 0; text-align: left; cursor: pointer; font-size: 11px; }
.ledger-block p { color: var(--muted); font-size: 11px; }

.inspector-scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.54); z-index: 40; backdrop-filter: blur(2px); }
.inspector { position: fixed; top: 0; right: 0; bottom: 0; width: min(540px, 94vw); z-index: 41; overflow-y: auto; background: var(--paper); color: var(--paper-ink); padding: 45px 40px 70px; box-shadow: -24px 0 80px rgba(0, 0, 0, 0.45); animation: slide-in 240ms ease-out; }
@keyframes slide-in { from { transform: translateX(30px); opacity: 0; } }
.inspector-close { position: absolute; right: 20px; top: 17px; border: 0; background: none; color: var(--paper-ink); font: 25px var(--serif); cursor: pointer; }
.inspector-tier { display: flex; align-items: baseline; gap: 9px; color: var(--tier); }
.inspector-tier b { font: 44px var(--mono); }
.inspector-tier span { font: 12px var(--serif); }
.inspector .section-kicker { color: #86662e; }
.inspector h2 { font: 600 33px/1.18 var(--serif); margin: 9px 0 14px; }
.inspector-summary { color: #5d6258; line-height: 1.7; }
.score-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #b8ae95; margin: 25px 0; }
.score-grid > div { background: #ddd4bc; padding: 12px; }
.score-grid span { display: block; color: #737466; font-size: 9px; }
.score-grid strong { display: block; font: 14px var(--mono); margin-top: 4px; }
.inspector details { border-top: 1px solid #bdb399; padding: 15px 0; }
.inspector summary { cursor: pointer; font: 600 14px var(--serif); }
.inspector details > p { color: #5d6258; font-size: 12px; line-height: 1.75; }
.prerequisite-list { display: grid; gap: 5px; margin-top: 12px; }
.prerequisite { display: grid; grid-template-columns: 20px 1fr auto; align-items: center; padding: 8px; background: rgba(0, 0, 0, 0.035); font-size: 11px; }
.prerequisite.done span { color: #2e6847; }
.prerequisite.missing span { color: var(--red-dark); }
.prerequisite button, .subtask-buttons button { border: 1px solid #a89d82; background: transparent; color: #574d39; padding: 5px 8px; cursor: pointer; font-size: 9px; }
.route-note { display: block; margin-top: 8px; color: #797766; }
.evidence-grid { grid-template-columns: repeat(5, 1fr); margin-top: 12px; }
.evidence-grid span { background: #d7ccb2; color: #757260; }
.evidence-grid b { color: var(--paper-ink); }
.inspector-actions { display: grid; gap: 8px; margin: 18px 0; }
.active-note { padding: 12px; border: 1px solid #a89d82; text-align: center; font-size: 11px; }
.subtask-section { border-top: 2px solid var(--paper-ink); margin-top: 26px; padding-top: 14px; }
.subtask-section h3 { font: 18px var(--serif); }
.subtask-list { display: grid; gap: 6px; }
.subtask-pill { padding: 8px; background: #d8ceb6; font-size: 10px; }
.subtask-pill.completed { color: #2e6847; }
.subtask-buttons { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.muted-copy { color: #797766; font-size: 11px; }

.modal-backdrop { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 20px; background: rgba(4, 9, 6, 0.82); backdrop-filter: blur(12px); }
.intro-letter, .ending-card { width: min(620px, 100%); background: var(--paper); color: var(--paper-ink); padding: 52px; box-shadow: var(--shadow); position: relative; }
.intro-letter::before { content: "机要"; position: absolute; right: 45px; top: 42px; color: var(--red); border: 2px solid var(--red); padding: 9px 7px; font: 18px var(--serif); transform: rotate(8deg); opacity: 0.8; }
.letter-date { color: #7b7566; font: 10px var(--mono); }
.intro-letter h2, .ending-card h2 { font: 600 38px/1.2 var(--serif); margin: 20px 0; }
.intro-letter p, .ending-card p { color: #585c53; line-height: 1.9; }
.intro-letter blockquote { margin: 28px 0; padding: 16px 20px; border-left: 3px solid var(--red); background: #d9cfb8; font: 15px/1.7 var(--serif); }
.ending-backdrop { background: radial-gradient(circle, rgba(82, 39, 34, 0.5), rgba(2, 4, 3, 0.95)); }
.ending-card { text-align: center; background: #111713; color: var(--paper); border: 1px solid var(--brass); }
.ending-card p { color: var(--muted); }
.ending-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 26px; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 80; max-width: 380px; padding: 13px 17px; background: var(--paper); color: var(--paper-ink); box-shadow: var(--shadow); font-size: 12px; border-left: 4px solid var(--brass); animation: slide-in 180ms ease-out; }
.toast.error { border-color: var(--red); }
.toast.success { border-color: var(--forest-bright); }

@media (max-width: 1050px) {
  .app-body { grid-template-columns: 78px minmax(0, 1fr); }
  .rail { padding-inline: 9px; }
  .nav-item { justify-content: center; padding-inline: 8px; font-size: 0; }
  .nav-item span { font-size: 10px; }
  .rail-note, .rail-actions { display: none; }
  .command-grid, .archive-ledger { grid-template-columns: 1fr; }
  .event-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-stage { grid-template-columns: 70px minmax(0, 1fr); }
  .ai-stage-meta { grid-column: 2; border-left: 0; border-top: 1px solid var(--line); grid-template-columns: repeat(3, 1fr); }
  .blackbox-panel { grid-template-columns: 1fr 220px; padding: 36px; }
}

@media (max-width: 760px) {
  .masthead { height: auto; min-height: 76px; padding: 14px 16px; }
  .brand-seal { width: 39px; height: 39px; }
  .brand-lockup h1 { font-size: 14px; }
  .eyebrow { display: none; }
  .date-block { padding-left: 12px; }
  .date-block strong { font-size: 13px; }
  .status-ribbon { grid-template-columns: repeat(2, 1fr); }
  .status-ribbon > div { padding: 8px 12px; }
  .status-ribbon > div:nth-child(4) { display: none; }
  .status-ribbon > div:last-child { grid-column: span 2; }
  .app-body { display: block; }
  .rail { position: fixed; inset: auto 0 0 0; height: 62px; width: auto; z-index: 30; padding: 6px; border: 0; border-top: 1px solid var(--line); background: #0a110d; }
  .primary-nav { grid-template-columns: repeat(4, 1fr); gap: 0; }
  .nav-item { display: grid; justify-items: center; gap: 2px; font-size: 9px; padding: 6px; border-left: 0; border-top: 2px solid transparent; }
  .nav-item span { font-size: 8px; }
  .nav-item.is-current { border-top-color: var(--brass); }
  .view { padding: 24px 16px 90px; }
  .blackbox-panel { min-height: 0; display: block; padding: 28px 22px; }
  .blackbox-copy h2 { font-size: 30px; }
  .blackbox-orbit { display: none; }
  .blackbox-stats { gap: 15px; }
  .command-grid { display: block; }
  .decision-stack { margin-top: 16px; }
  .work-row { grid-template-columns: 37px 1fr; }
  .work-row .progress-track { grid-column: span 2; }
  .event-grid { grid-template-columns: 1fr; }
  .page-intro { grid-template-columns: 1fr; gap: 14px; }
  .filter-bar { align-items: flex-start; flex-direction: column; }
  .tier-shelf { grid-template-columns: 68px minmax(0, 1fr); }
  .tier-label strong { font-size: 38px; }
  .tier-label span { font-size: 10px; }
  .project-card { flex-basis: 205px; }
  .ai-summary { display: grid; grid-template-columns: repeat(3, 1fr); }
  .ai-stage { grid-template-columns: 52px minmax(0, 1fr); }
  .ai-stage-number { font-size: 22px; }
  .ai-stage-body { padding: 18px; }
  .ai-stage-meta { grid-template-columns: 1fr; padding: 16px 18px; }
  .eval-grid { grid-template-columns: repeat(2, 1fr); }
  .archive-ledger { display: block; }
  .results-ledger { margin-top: 16px; }
  .inspector { padding: 38px 20px 80px; }
  .score-grid { grid-template-columns: repeat(2, 1fr); }
  .evidence-grid { grid-template-columns: repeat(3, 1fr); }
  .intro-letter, .ending-card { padding: 34px 24px; }
  .intro-letter::before { right: 25px; top: 26px; }
  .intro-letter h2, .ending-card h2 { font-size: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}