.evidence-exercise{margin:1.5rem 0;padding:clamp(1rem,3vw,1.5rem);border:1px solid var(--gold-b,#766238);border-radius:var(--r,8px);background:var(--s2,#171a20);color:var(--tx1,#f1eade);min-width:0}
.evidence-exercise h2,.evidence-exercise h3{margin:0 0 .85rem}
.evidence-exercise p,.evidence-exercise details{margin:.8rem 0;line-height:1.7}
.evidence-exercise label{display:block;margin:.8rem 0 .3rem}
.evidence-exercise select,.evidence-exercise input[type=number]{width:100%;max-width:28rem;min-height:44px;padding:.6rem;background:var(--s3,#22262d);color:var(--tx1,#f1eade);border:1px solid var(--gold-b,#766238);border-radius:4px;font:inherit}
.evidence-exercise button{min-height:44px;white-space:normal;margin:.3rem .3rem .3rem 0;letter-spacing:normal;text-transform:none}
.evidence-exercise button[aria-pressed=true]{outline:2px solid var(--gold,#d8b66b);outline-offset:2px}
.evidence-exercise :focus-visible{outline:3px solid var(--gold,#d8b66b);outline-offset:3px}
.evidence-exercise input[type=checkbox]{width:1.2rem;height:1.2rem;vertical-align:middle;margin-right:.5rem}
.evidence-exercise summary{cursor:pointer;min-height:44px;padding:.5rem 0}
.evidence-exercise .evidence-output{padding:.8rem;border-left:3px solid var(--gold,#d8b66b);background:var(--s3,#22262d);overflow-wrap:anywhere;white-space:normal;font:inherit;letter-spacing:normal;line-height:1.7}
.evidence-exercise code{white-space:normal;overflow-wrap:anywhere}
.evidence-keys{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,13rem),1fr));gap:1rem}
.evidence-steps{padding-left:1.5rem;line-height:1.7}
.evidence-steps li{margin:.5rem 0;padding-left:.2rem}
.evidence-exercise [hidden]{display:none!important}

.evidence-exercise .paper-credit{border-top:1px solid var(--gold-b);padding-top:1rem;font-size:.9rem}
.evidence-exercise .research-card h3{font-size:1.15rem}
.evidence-exercise #pattern-symbols{display:flex;flex-wrap:wrap;gap:.4rem}

#structure-controls .evidence-table-scroll,#concealment .evidence-table-scroll{max-width:100%;overflow-x:auto;margin:1rem 0}
#structure-controls .cipher-table,#concealment .cipher-table{width:100%;min-width:24rem}
#structure-controls .cipher-table caption,#concealment .cipher-table caption{text-align:left;margin-bottom:.6rem;line-height:1.5;color:var(--tx2,#c7c1b7)}
#structure-controls .structure-alternatives{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:.4rem 1.5rem;padding-left:1.4rem}
#concealment h3{margin-top:1.6rem}
#concealment .carrier-text{border:1px solid var(--gold-b);border-radius:4px;padding:.85rem;background:var(--s3,#22262d)}
#concealment .rhythm-notes{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,9rem),1fr));gap:.6rem}
#concealment .rhythm-note{padding:.75rem;border:1px solid var(--gold-b);border-radius:4px;line-height:1.6;background:var(--s3,#22262d)}