.aquarium-shell{display:grid;gap:1rem;justify-items:center;width:min(100%,60rem);margin:0 auto}.aquarium-hud{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;width:100%}.aquarium-hud div{display:grid;gap:.1rem;min-width:5.4rem;padding:.48rem .72rem;border:1px solid var(--border-subtle,#d7dbe4);border-radius:.8rem;background:var(--surface-elevated,#fff);text-align:center}.aquarium-hud span{color:var(--text-muted,#64748b);font-size:.68rem;text-transform:uppercase;letter-spacing:.05em}.aquarium-hud strong{font-size:.9rem}.aquarium-puzzle{width:min(94vw,46rem)}.aquarium-col-clues{display:grid;margin-right:2.5rem;height:2.25rem;align-items:end}.aquarium-col-clues span,.aquarium-row-clues span{display:grid;place-items:center;color:var(--text-strong,#172033);font:800 .88rem/1 system-ui,sans-serif;transition:color .15s ease,transform .15s ease}.aquarium-col-clues .is-satisfied,.aquarium-row-clues .is-satisfied{color:#059669}.aquarium-col-clues .is-over,.aquarium-row-clues .is-over{color:#dc2626;transform:scale(1.12)}.aquarium-main{display:grid;grid-template-columns:minmax(0,1fr) 2.5rem}.aquarium-board{display:grid;aspect-ratio:1;border:2px solid var(--text-strong,#172033);border-radius:.75rem;overflow:hidden;background:var(--surface-elevated,#fff);box-shadow:0 18px 45px rgba(15,23,42,.12)}.aquarium-row-clues{display:grid}.aquarium-cell{position:relative;display:grid;place-items:center;min-width:0;min-height:0;padding:0;border:0;border-right:1px solid rgba(100,116,139,.18);border-bottom:1px solid rgba(100,116,139,.18);background:var(--surface-elevated,#fff);color:#075985;font:800 clamp(.8rem,3.2vw,1.35rem)/1 system-ui,sans-serif;cursor:pointer;transition:background .14s ease,color .14s ease,transform .14s ease,box-shadow .14s ease}.aquarium-cell:hover{background:color-mix(in srgb,var(--surface-elevated,#fff) 88%,#38bdf8 12%)}.aquarium-cell.is-water{background:linear-gradient(180deg,rgba(186,230,253,.86),rgba(56,189,248,.92));color:#075985;text-shadow:0 1px rgba(255,255,255,.65)}.aquarium-cell.is-water::after{content:"";position:absolute;left:8%;right:8%;top:16%;height:2px;border-radius:999px;background:rgba(255,255,255,.82);box-shadow:0 5px 0 rgba(255,255,255,.34)}.aquarium-cell.is-air{background:color-mix(in srgb,var(--surface-muted,#f4f6fb) 91%,#cbd5e1 9%);color:#64748b}.aquarium-cell.is-conflict{box-shadow:inset 0 0 0 3px #ef4444;z-index:1}.aquarium-cell.region-top{border-top:2px solid #0f172a}.aquarium-cell.region-bottom{border-bottom:2px solid #0f172a}.aquarium-cell.region-left{border-left:2px solid #0f172a}.aquarium-cell.region-right{border-right:2px solid #0f172a}.aquarium-cell:focus-visible{z-index:3;outline:3px solid #f59e0b;outline-offset:-4px}.aquarium-instructions{margin:0;max-width:46rem;color:var(--text-muted,#64748b);font-size:.82rem;text-align:center}.aquarium-shell.is-complete .aquarium-board{animation:aquarium-complete .55s ease}.aquarium-shell.is-complete .aquarium-cell.is-water{filter:saturate(1.12)}@keyframes aquarium-complete{50%{transform:scale(1.012);box-shadow:0 20px 55px rgba(14,165,233,.28)}}@media(max-width:640px){.aquarium-shell{gap:.75rem}.aquarium-puzzle{width:min(96vw,40rem)}.aquarium-col-clues{margin-right:2rem;height:1.9rem}.aquarium-main{grid-template-columns:minmax(0,1fr) 2rem}.aquarium-col-clues span,.aquarium-row-clues span{font-size:.74rem}.aquarium-board{border-radius:.55rem}.aquarium-hud{gap:.3rem}.aquarium-hud div{min-width:4.2rem;padding:.35rem .45rem}.aquarium-hud span{font-size:.6rem}.aquarium-hud strong{font-size:.78rem}.aquarium-instructions{font-size:.74rem}}@media(max-width:380px){.aquarium-puzzle{width:100%}.aquarium-hud div{min-width:3.9rem}.aquarium-cell{font-size:.78rem}}@media(prefers-reduced-motion:reduce){.aquarium-cell,.aquarium-col-clues span,.aquarium-row-clues span{transition:none}.aquarium-shell.is-complete .aquarium-board{animation:none}}