@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  --ink: #111111;
  --paper: #f3f3f0;
  --white: #ffffff;
  --muted: #6d6d68;
  --line: #d7d7d1;
  --soft: #e8e8e3;
  --yellow: #ffdd00;
  --red: #9e0a0e;
  --green: #147a4a;
  --shadow: 0 18px 60px rgba(17, 17, 17, 0.08);
}

* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); font-family: Manrope, Arial, sans-serif; }
body { margin: 0; min-width: 320px; }
button, input { font: inherit; }
button { color: inherit; }
button:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }

.site-header {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 64px);
  background: var(--ink);
  color: var(--white);
  border-bottom: 5px solid var(--yellow);
}
.brand { display: flex; align-items: center; gap: 13px; background: none; border: 0; padding: 0; cursor: pointer; text-align: left; }
.brand-mark { width: 45px; height: 45px; display: grid; place-items: center; background: var(--yellow); color: var(--ink); font: 800 16px/1 Manrope; letter-spacing: -.04em; }
.brand b, .brand small { display: block; }
.brand b { font-size: 17px; letter-spacing: .08em; }
.brand small { color: #aaa; margin-top: 3px; font: 10px DM Mono, monospace; letter-spacing: .08em; }
.header-actions { display: flex; align-items: center; gap: 20px; }
.language { display: flex; border: 1px solid #555; }
.language button { border: 0; background: transparent; color: #aaa; padding: 7px 9px; cursor: pointer; font: 600 11px DM Mono, monospace; }
.language button.active { background: var(--white); color: var(--ink); }
.text-button { border: 0; background: none; color: #bbb; padding: 7px 0; cursor: pointer; font-size: 12px; }
.text-button:hover { color: var(--white); }

main { max-width: 1240px; margin: 0 auto; padding: 0 clamp(18px, 4vw, 56px) 64px; }
.case-steps { display: grid; grid-template-columns: repeat(5, 1fr); border-left: 1px solid var(--line); margin-bottom: 0; }
.step-tab { position: relative; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: transparent; padding: 17px 15px; text-align: left; cursor: pointer; color: #888; }
.step-tab small { display: block; font: 10px DM Mono, monospace; margin-bottom: 3px; }
.step-tab b { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.step-tab.active { color: var(--ink); background: var(--white); }
.step-tab.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 4px; background: var(--yellow); }
.step-tab.completed { color: var(--ink); }
.step-tab:disabled { cursor: default; }

#app { min-height: 680px; background: var(--white); box-shadow: var(--shadow); }
.screen { animation: enter .3s ease both; }
@keyframes enter { from { opacity: 0; transform: translateY(4px); } }
.screen-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 28px; padding: clamp(30px, 5vw, 64px); border-bottom: 1px solid var(--line); }
.kicker { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 15px; font: 500 11px DM Mono, monospace; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
.kicker::before { content: ""; width: 26px; height: 5px; background: var(--yellow); }
h1 { max-width: 830px; margin: 0; font-size: clamp(38px, 6vw, 76px); line-height: .98; letter-spacing: -.055em; }
.screen-header p { max-width: 720px; margin: 21px 0 0; color: #555; font-size: 17px; line-height: 1.65; }
.case-stamp { align-self: start; min-width: 165px; border: 1px solid var(--ink); padding: 13px 15px; transform: rotate(1.5deg); font: 11px/1.6 DM Mono, monospace; }
.case-stamp b { display: block; font-size: 16px; }

.content { padding: clamp(24px, 4vw, 48px) clamp(24px, 5vw, 64px); }
.brief-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 0; border: 1px solid var(--ink); }
.brief-main { padding: clamp(25px, 4vw, 44px); }
.brief-side { padding: clamp(25px, 4vw, 44px); background: var(--ink); color: var(--white); }
h2 { margin: 0 0 18px; font-size: 22px; letter-spacing: -.03em; }
.brief-main > p { color: #555; line-height: 1.7; }
.fact-row { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); margin-top: 30px; }
.fact { padding: 20px 14px 0 0; }
.fact span, .stat-label { display: block; color: var(--muted); font: 10px DM Mono, monospace; text-transform: uppercase; letter-spacing: .06em; }
.fact b { display: block; margin-top: 6px; font-size: 23px; }
.brief-side ol { list-style: none; padding: 0; margin: 0; counter-reset: objective; }
.brief-side li { counter-increment: objective; display: grid; grid-template-columns: 28px 1fr; gap: 12px; padding: 17px 0; border-top: 1px solid #444; line-height: 1.5; }
.brief-side li::before { content: "0" counter(objective); color: var(--yellow); font: 500 11px DM Mono, monospace; }

.status-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 30px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.status-strip > div { padding: 14px 16px; border-right: 1px solid var(--line); }
.status-strip > div:last-child { border-right: 0; }
.status-strip b { display: block; margin-top: 3px; font-size: 19px; }

.evidence-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.evidence-card { min-height: 290px; display: flex; flex-direction: column; border: 1px solid var(--line); background: #fafaf8; padding: 20px; text-align: left; transition: transform .15s, border-color .15s, background .15s; }
.evidence-card:hover { transform: translateY(-2px); border-color: var(--ink); }
.evidence-card.open { background: var(--white); border-color: var(--ink); box-shadow: inset 0 5px var(--soft); }
.evidence-card.key { box-shadow: inset 0 5px var(--yellow); }
.evidence-card .card-number { font: 11px DM Mono, monospace; color: var(--muted); }
.evidence-card h3 { margin: 14px 0 8px; font-size: 17px; }
.evidence-card .locked-copy { color: var(--muted); margin-top: auto; font-size: 12px; }
.finding { display: none; margin-top: auto; }
.open .finding { display: block; }
.open .locked-copy { display: none; }
.finding strong { display: block; font-size: 30px; margin-bottom: 8px; }
.finding p { margin: 0; color: #555; font-size: 13px; line-height: 1.55; }
.mini-meter { height: 6px; background: var(--soft); margin: 16px 0 10px; }
.mini-meter i { display: block; height: 100%; background: var(--ink); }
.finance-preview { margin: 16px 0 0; border-top: 1px solid var(--line); }
.finance-preview div { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.finance-preview dt, .finance-preview dd { margin: 0; font: 10px/1.4 DM Mono, monospace; }
.finance-preview dd { font-weight: 700; text-align: right; }
.file-open, .evidence-pin { width: 100%; margin-top: auto; border: 1px solid var(--ink); background: var(--white); padding: 9px 8px; cursor: pointer; font: 600 10px DM Mono, monospace; text-transform: uppercase; }
.evidence-pin { margin-top: 18px; }
.evidence-pin.active { background: var(--ink); color: var(--white); border-bottom: 4px solid var(--yellow); }
.evidence-pin:disabled { opacity: .35; cursor: not-allowed; }

.diagnosis-list, .action-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.choice-card { position: relative; border: 1px solid var(--line); background: #fafaf8; padding: 22px 22px 22px 58px; text-align: left; cursor: pointer; min-height: 132px; }
.choice-card:hover { border-color: var(--ink); }
.choice-card.selected { border-color: var(--ink); background: var(--white); box-shadow: inset 5px 0 var(--yellow); }
.choice-card:disabled { opacity: .4; cursor: not-allowed; }
.choice-card .radio { position: absolute; left: 22px; top: 25px; width: 19px; height: 19px; border: 1px solid var(--ink); border-radius: 50%; }
.choice-card.selected .radio::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--ink); }
.choice-card h3 { margin: 0 0 8px; font-size: 16px; }
.choice-card p { margin: 0; color: #666; font-size: 13px; line-height: 1.55; }
.diagnosis-role { display: inline-block; margin: 0 0 9px; padding: 4px 6px; background: var(--yellow); font: 700 9px DM Mono, monospace; text-transform: uppercase; letter-spacing: .04em; }

.action-grid { grid-template-columns: repeat(3, 1fr); }
.action-card { position: relative; display: flex; flex-direction: column; min-height: 220px; border: 1px solid var(--line); background: #fafaf8; text-align: left; }
.action-card:hover { border-color: var(--ink); }
.action-card.selected { background: var(--ink); color: var(--white); border-color: var(--ink); box-shadow: inset 0 5px var(--yellow); }
.action-select { display: flex; flex: 1; flex-direction: column; width: 100%; min-height: 220px; border: 0; padding: 20px; background: transparent; color: inherit; cursor: pointer; text-align: left; }
.action-select:disabled { opacity: .45; cursor: not-allowed; }
.action-meta { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); font: 10px DM Mono, monospace; }
.selected .action-meta { color: #aaa; }
.action-card h3 { margin: 22px 0 8px; font-size: 16px; }
.action-card p { margin: 0; color: #666; font-size: 13px; line-height: 1.55; }
.selected p { color: #bbb; }
.effect-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 18px; }
.effect-tags span { border: 1px solid var(--line); padding: 5px 7px; font: 9px DM Mono, monospace; text-transform: uppercase; }
.selected .effect-tags span { border-color: #555; }
.metric-impact-row { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.metric-impact-row span { font: 9px DM Mono, monospace; line-height: 1.4; }
.selected .metric-impact-row { border-color: #555; color: #ddd; }
.decision-details { border-top: 1px solid var(--line); background: var(--white); color: var(--ink); }
.decision-details summary, .glossary-panel > summary, .glossary-item summary { cursor: pointer; font-weight: 700; }
.decision-details summary { padding: 14px 20px; font-size: 12px; }
.decision-details-body { padding: 4px 20px 22px; }
.decision-details-body h4 { margin: 18px 0 7px; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.decision-details-body p, .decision-details-body li, .decision-details-body dd { color: #555; font-size: 12px; line-height: 1.55; }
.decision-details-body ul { margin: 0; padding-left: 18px; }
.decision-details-body dl { margin: 12px 0 0; }
.decision-details-body dl div { padding: 9px 0; border-bottom: 1px solid var(--line); }
.decision-details-body dt { font: 700 9px DM Mono, monospace; text-transform: uppercase; }
.decision-details-body dd { margin: 4px 0 0; }
.detail-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.working-capital-intro { margin-bottom: 24px; padding: clamp(22px, 4vw, 34px); border-left: 5px solid var(--yellow); background: #f7f7f4; }
.working-capital-intro h2 { max-width: 760px; margin: 12px 0; font-size: clamp(19px, 3vw, 28px); }
.working-capital-intro > p, .working-capital-intro > ul { color: #555; font-size: 13px; line-height: 1.65; }
.glossary-panel { margin-top: 22px; border-top: 1px solid var(--ink); }
.glossary-panel > summary { padding: 16px 0; }
.glossary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.glossary-item { border: 1px solid var(--line); background: var(--white); padding: 12px; }
.glossary-item summary { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; }
.glossary-item p { margin: 10px 0 0; color: #555; font-size: 11px; line-height: 1.55; }
.info-mark { display: inline-grid; flex: 0 0 18px; width: 18px; height: 18px; place-items: center; border: 1px solid var(--ink); border-radius: 50%; font: 700 10px serif; }

.action-footer { position: sticky; bottom: 0; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 19px clamp(24px, 5vw, 64px); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); backdrop-filter: blur(8px); }
.action-footer p { margin: 0; color: var(--muted); font-size: 12px; }
.button-group { display: flex; align-items: center; gap: 10px; }
.primary, .secondary { border: 1px solid var(--ink); padding: 13px 19px; cursor: pointer; font-weight: 700; font-size: 13px; }
.primary { background: var(--ink); color: var(--white); }
.primary:hover { background: #333; }
.primary::after { content: " →"; color: var(--yellow); }
.primary:disabled { opacity: .35; cursor: not-allowed; }
.secondary { background: var(--white); }
.warning { color: var(--muted) !important; }
.reset-dialog { width: min(560px, calc(100vw - 32px)); border: 1px solid var(--ink); padding: 0; box-shadow: 0 24px 90px rgba(0,0,0,.35); }
.reset-dialog::backdrop { background: rgba(17,17,17,.7); }
.reset-dialog-inner { padding: clamp(24px, 5vw, 42px); }
.reset-dialog h2 { font-size: 30px; }
.reset-dialog p { color: #555; line-height: 1.65; }
.reset-dialog .button-group { justify-content: flex-end; margin-top: 28px; }
.danger-button { border: 1px solid var(--red); padding: 13px 19px; background: var(--red); color: var(--white); cursor: pointer; font-weight: 700; font-size: 13px; }

.case-library .screen-header { min-height: 290px; align-items: end; }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.case-card { display: flex; flex-direction: column; min-height: 430px; border: 1px solid var(--ink); padding: clamp(24px, 4vw, 42px); background: #fafaf8; }
.case-card:nth-child(2) { box-shadow: inset 0 6px var(--yellow); }
.case-card h2 { margin-top: 12px; font-size: clamp(27px, 3vw, 40px); }
.case-card > p { min-height: 58px; color: #555; line-height: 1.6; }
.case-card dl { margin: 18px 0 28px; }
.case-card dl div { display: grid; grid-template-columns: 130px 1fr; gap: 14px; padding: 10px 0; border-top: 1px solid var(--line); }
.case-card dt { color: var(--muted); font: 10px DM Mono, monospace; text-transform: uppercase; }
.case-card dd { margin: 0; font-size: 13px; line-height: 1.5; }
.case-card .primary { align-self: flex-start; margin-top: auto; }
.principle-banner { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 24px; padding: 18px 22px; border-left: 7px solid var(--yellow); background: var(--ink); color: var(--white); }
.principle-banner b { font-size: 20px; }
.principle-banner span { color: #aaa; font-size: 12px; }
.brief-side p { margin: 20px 0 6px; color: #aaa; font-size: 12px; }
.brief-side > b { font: 600 12px/1.6 DM Mono, monospace; }
.explain-box { margin-top: 24px; padding: 22px; border-left: 6px solid var(--yellow); background: #f7f7f4; }
.explain-box p { margin-bottom: 0; color: #555; line-height: 1.65; }
.solution-legend { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 22px; }
.solution-legend div { display: flex; flex-direction: column; gap: 7px; border-top: 4px solid var(--ink); padding: 15px; background: #f7f7f4; }
.solution-legend b { font: 600 11px DM Mono, monospace; }
.solution-legend span { color: #555; font-size: 13px; }
.operating-panel.gain { border-left: 6px solid var(--green); }
.solution-panel, .tradeoff-panel { margin-bottom: 28px; border: 1px solid var(--line); padding: clamp(20px, 3vw, 30px); }
.tradeoff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.tradeoff-grid article { border-top: 4px solid var(--ink); padding: 18px; background: #f7f7f4; }
.tradeoff-grid h3 { min-height: 44px; font-size: 15px; }
.tradeoff-grid dl { margin: 0; }
.tradeoff-grid dl div { padding: 8px 0; border-top: 1px solid var(--line); }
.tradeoff-grid dt { color: var(--muted); font: 10px DM Mono, monospace; text-transform: uppercase; }
.tradeoff-grid dd { margin: 4px 0 0; color: #444; font-size: 12px; line-height: 1.5; }

.result-hero { display: grid; grid-template-columns: .45fr 1fr; gap: 45px; padding: clamp(30px, 5vw, 60px); color: var(--white); background: var(--ink); }
.score-ring { width: min(230px, 60vw); aspect-ratio: 1; display: grid; place-items: center; border: 13px solid var(--yellow); border-radius: 50%; }
.score-ring div { text-align: center; }
.score-ring b { display: block; font-size: 58px; letter-spacing: -.06em; }
.score-ring small { color: #aaa; font: 11px DM Mono, monospace; }
.result-copy { align-self: center; }
.result-copy h1 { font-size: clamp(38px, 5vw, 65px); }
.result-copy p { max-width: 670px; color: #bbb; line-height: 1.65; }
.result-grade { display: inline-block; margin-bottom: 14px; padding: 6px 9px; color: var(--ink); background: var(--yellow); font: 700 10px DM Mono, monospace; text-transform: uppercase; }
.analysis-panel, .score-panel, .assumption-panel, .operating-panel, .cash-panel, .learning-panel { margin-bottom: 28px; border: 1px solid var(--line); padding: clamp(20px, 3vw, 30px); }
.analysis-panel > h2, .score-panel > h2, .assumption-panel > h2, .operating-panel > h2, .cash-panel > h2, .learning-panel > h2 { font-size: 20px; }
.decision-chain { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.decision-chain article { border-top: 3px solid var(--ink); background: #f7f7f4; padding: 16px; }
.decision-chain article > span { color: var(--muted); font: 700 11px DM Mono, monospace; }
.decision-chain h3 { margin: 8px 0 10px; font-size: 14px; }
.decision-chain p, .decision-chain li { color: #555; font-size: 12px; line-height: 1.55; }
.decision-chain p, .decision-chain ul { margin: 0; }
.decision-chain ul { padding-left: 18px; }
.decision-chain li + li { margin-top: 6px; }
.decision-chain li span { display: block; color: var(--muted); margin-top: 3px; }
.causal-links { margin-top: 14px; border-left: 5px solid var(--yellow); padding: 6px 0 6px 18px; }
.causal-links p { margin: 0; color: #444; font-size: 13px; line-height: 1.6; }
.causal-links p + p { margin-top: 9px; }
.score-panel dl, .assumption-panel dl, .cash-panel dl { margin: 0; }
.score-panel dl > div, .assumption-panel dl > div, .cash-panel dl > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; padding: 10px 0; border-top: 1px solid var(--line); }
.score-panel dt, .score-panel dd, .assumption-panel dt, .assumption-panel dd, .cash-panel dt, .cash-panel dd { margin: 0; font-size: 13px; }
.score-panel dd, .assumption-panel dd, .cash-panel dd { font: 600 12px DM Mono, monospace; text-align: right; }
.score-panel .total, .cash-panel .total { border-top: 2px solid var(--ink); font-weight: 800; }
.assumption-panel > p, .cash-panel > p { color: #555; font-size: 13px; line-height: 1.6; }
.score-meaning { max-width: 760px; color: #666; font-size: 13px; line-height: 1.6; }
.result-copy .score-meaning { padding-left: 14px; border-left: 4px solid var(--yellow); color: #ddd; }
.recognition-note { border-left: 5px solid var(--yellow); padding-left: 14px; }
.operating-panel.loss { border-left: 6px solid var(--red); }
.bridge-columns { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.operating-panel dl { margin: 0; }
.operating-panel dl > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; padding: 10px 0; border-top: 1px solid var(--line); }
.operating-panel dt, .operating-panel dd { margin: 0; font-size: 13px; }
.operating-panel dd { font: 600 12px DM Mono, monospace; text-align: right; }
.operating-panel .total { border-top: 2px solid var(--ink); font-weight: 800; }
.operating-panel .loss { color: var(--red); }
.operating-panel > p { color: #555; line-height: 1.6; }
.scenario-box { margin-top: 20px; padding: 18px; background: #f7f7f4; border-top: 3px solid var(--ink); }
.scenario-box h3, .scenario-box p { margin-top: 0; }
.scenario-box small { color: #666; line-height: 1.5; }
.cash-panel.neutral { border-left: 6px solid var(--yellow); }
.cash-panel.gain { border-left: 6px solid var(--green); }
.cash-panel.loss { border-left: 6px solid var(--red); }
.cash-panel .total.neutral { color: var(--ink); background: rgba(255,221,0,.22); }
.cash-panel .total.gain { color: var(--green); }
.cash-panel .total.loss { color: var(--red); }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.metric-card { border: 1px solid var(--line); padding: 18px; }
.metric-card header { display: flex; justify-content: space-between; gap: 15px; align-items: baseline; }
.metric-card h3 { margin: 0; font-size: 13px; }
.metric-card .delta { font: 500 11px DM Mono, monospace; }
.delta.gain { color: var(--green); }
.delta.loss { color: var(--red); }
.delta.neutral { color: var(--ink); background: var(--yellow); padding: 3px 5px; }
.metric-values { display: grid; grid-template-columns: auto 1fr auto; gap: 11px; align-items: center; margin-top: 17px; }
.metric-values span { font: 11px DM Mono, monospace; color: var(--muted); }
.metric-track { height: 9px; background: var(--soft); position: relative; overflow: hidden; }
.metric-track i { display: block; height: 100%; background: var(--ink); }
.metric-card.gain .metric-track i { background: var(--green); }
.metric-card.loss .metric-track i { background: var(--red); }
.metric-card.neutral .metric-track i { background: var(--yellow); }
.metric-explanation { margin: 16px 0 0; border-top: 1px solid var(--line); }
.metric-explanation div { padding: 9px 0; border-bottom: 1px solid var(--line); }
.metric-explanation dt { color: var(--muted); font: 10px DM Mono, monospace; text-transform: uppercase; }
.metric-explanation dd { margin: 4px 0 0; color: #4f4f4a; font-size: 12px; line-height: 1.55; }
.finding-panel { margin-top: 28px; border-left: 5px solid var(--yellow); background: #f7f7f4; padding: 24px; }
.finding-panel h2 { font-size: 17px; }
.finding-panel ul { margin: 0; padding-left: 20px; color: #555; line-height: 1.7; }
.learning-panel { background: var(--ink); color: var(--white); }
.learning-panel ul { margin: 0; padding-left: 20px; color: #ccc; line-height: 1.7; font-size: 13px; }

footer { max-width: 1240px; display: flex; justify-content: space-between; gap: 20px; margin: 0 auto; padding: 25px clamp(18px, 4vw, 56px) 50px; color: #777; font: 10px DM Mono, monospace; letter-spacing: .06em; }

@media (max-width: 980px) {
  .evidence-grid { grid-template-columns: repeat(2, 1fr); }
  .action-grid { grid-template-columns: repeat(2, 1fr); }
  .brief-grid, .result-hero { grid-template-columns: 1fr; }
  .decision-chain { grid-template-columns: repeat(2, 1fr); }
  .score-ring { width: 185px; }
  .tradeoff-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .site-header { align-items: flex-start; flex-wrap: wrap; }
  .brand small { display: none; }
  .header-actions { width: 100%; flex-wrap: wrap; gap: 10px 16px; }
  .case-steps { overflow-x: auto; grid-template-columns: repeat(5, minmax(112px, 1fr)); }
  .screen-header { grid-template-columns: 1fr; }
  .case-stamp { display: none; }
  .fact-row { grid-template-columns: repeat(2, 1fr); }
  .evidence-grid, .diagnosis-list, .action-grid, .metric-grid { grid-template-columns: 1fr; }
  .decision-chain { grid-template-columns: 1fr; }
  .bridge-columns { grid-template-columns: 1fr; }
  .case-grid, .solution-legend { grid-template-columns: 1fr; }
  .glossary-grid, .detail-columns { grid-template-columns: 1fr; }
  .principle-banner { align-items: flex-start; flex-direction: column; }
  .case-card dl div { grid-template-columns: 1fr; gap: 4px; }
  .status-strip { grid-template-columns: 1fr; }
  .status-strip > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .action-footer { position: static; align-items: flex-start; flex-direction: column; }
  .button-group { width: 100%; }
  .button-group button { flex: 1; min-width: 0; padding-inline: 10px; }
  footer { flex-direction: column; }
}

@media print {
  .site-header, .case-steps, .action-footer, footer { display: none !important; }
  body, #app { background: white; box-shadow: none; }
  .result-hero { color: black; background: white; border-bottom: 2px solid black; }
  .result-copy p { color: #444; }
}