:root{--bg: #0b1c2c;--panel: #12293d;--line: #1e3a52;--sea: #17364d;--sea-hi: #1f4a68;--ship: #47677f;--ship-line: #8fb2ca;--amber: #f59e0b;--red: #ef4444;--green: #34d399;--text: #e6eef6;--muted: #90a6bb;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}body{background-image:linear-gradient(180deg,#0b1c2c59,#0b1c2ce6),url(/art/background.png);background-size:cover,640px 640px;background-position:center,center;background-attachment:fixed;background-color:var(--bg);min-height:100dvh}button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}.screen{max-width:460px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column;gap:10px;padding:max(10px,env(safe-area-inset-top)) 14px calc(14px + env(safe-area-inset-bottom))}.screen-head{display:flex;align-items:center;gap:8px;min-height:36px}.screen-head h2{margin:0;font-size:1.05rem;flex:1;text-align:center;padding-right:56px}.turn-mine{color:var(--amber)}.turn-theirs{color:var(--muted)}.title-block{text-align:center;padding:10px 0 2px}.title-block h1{margin:0;font-size:2rem;letter-spacing:.06em;text-transform:uppercase}.title-block h1.win{color:var(--amber)}.title-block h1.lose{color:var(--muted)}.subtitle{margin:6px 0 0;color:var(--muted);font-size:.9rem}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px}.panel h2{margin:0;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.hint{margin:0;font-size:.82rem;color:var(--muted);line-height:1.45}.hint-fixed{min-height:2.3em}.btn-primary,.btn-secondary,.btn-fire{border:1px solid transparent;border-radius:12px;padding:12px 16px;font-weight:600;min-height:48px}.btn-primary{background:var(--amber);color:#221302}.btn-secondary{background:transparent;border-color:var(--line);color:var(--text)}.btn-lg{min-height:54px;font-size:1.05rem}.btn-ghost{background:none;border:none;color:var(--muted);padding:8px 4px;min-width:56px;text-align:left}.btn-primary:disabled,.btn-secondary:disabled,.btn-fire:disabled{opacity:.45;cursor:default}.btn-fire{background:linear-gradient(180deg,#f97316,#dc2626);color:#fff;font-size:1.15rem;letter-spacing:.08em;min-height:58px;box-shadow:0 6px 18px #dc262647}.btn-fire:disabled{background:var(--panel);border-color:var(--line);color:var(--muted);box-shadow:none}.row-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.row-actions .btn-secondary{padding:10px 6px;font-size:.85rem}.seg{display:flex;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px;gap:4px}.seg button{flex:1;background:none;border:none;border-radius:9px;padding:11px 8px;color:var(--muted);font-weight:600}.seg button.is-active{background:var(--sea-hi);color:var(--text)}.seg-sm button{padding:9px 6px;font-size:.9rem}.toggle{display:flex;gap:12px;align-items:flex-start;padding:3px 0;cursor:pointer}.toggle input{width:22px;height:22px;margin:2px 0 0;accent-color:var(--amber);flex:none}.toggle span{display:flex;flex-direction:column;gap:3px}.toggle small{color:var(--muted);font-size:.78rem;line-height:1.4}.board-wrap{width:100%;max-width:min(320px,calc(100dvh - 350px));margin:0 auto}.board{display:grid;grid-template-columns:1.15rem 1fr;grid-template-rows:.85rem 1fr;gap:2px}.board-cols{display:grid;grid-template-columns:repeat(10,1fr);gap:2px}.board-rows{display:grid;grid-template-rows:repeat(10,1fr);gap:2px}.board-corner,.board-label{display:flex;align-items:center;justify-content:center;font-size:.62rem;color:var(--muted)}.board-cells-wrap{position:relative}.board-cells{display:grid;grid-template-columns:repeat(10,1fr);gap:2px;position:relative;z-index:1}.ship-layer{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;grid-template-columns:repeat(10,1fr);grid-template-rows:repeat(10,1fr);gap:2px;pointer-events:none}.ship-art{position:relative;filter:brightness(1.45) contrast(1.08) drop-shadow(0 1px 2px rgba(0,0,0,.75))}.ship-art.is-sunk{filter:grayscale(.75) brightness(.5)}.ship-art>span{position:absolute;top:0;right:0;bottom:0;left:0;background-size:100% 100%;background-repeat:no-repeat}.ship-art>span.is-vertical{inset:auto;top:50%;left:50%;width:calc(100% * var(--span));height:calc(100% / var(--span));transform:translate(-50%,-50%) rotate(90deg)}.cell{aspect-ratio:1;padding:0;border:1px solid rgba(255,255,255,.04);border-radius:3px;background:var(--sea);position:relative}.cell:disabled{cursor:default}.cell.ship{background:var(--ship);border-color:var(--ship-line)}.board-cells.has-art .cell.ship{background:transparent;border-color:#8fb2ca66}.board-cells.has-art .cell.sunk{background:#5c1a1ac7}.cell.preview{background:var(--sea-hi)}.cell.preview-bad{background:#6b2020}.cell.miss:after,.cell.hit:after{content:"";position:absolute;background-size:contain;background-position:center;background-repeat:no-repeat}.cell.miss:after{top:18%;right:18%;bottom:18%;left:18%;background-image:url(/art/mark-miss.png);opacity:.42}.cell.hit:after{top:-18%;right:-18%;bottom:-18%;left:-18%;background-image:url(/art/mark-hit.png);filter:drop-shadow(0 0 5px rgba(249,115,22,.65));z-index:1}.cell.sunk{background:#46141499;border-color:#8f2f2fbf}.wreck-layer{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;grid-template-columns:repeat(10,1fr);grid-template-rows:repeat(10,1fr);gap:2px;pointer-events:none;z-index:2}.wreck{position:relative}.wreck>span{position:absolute;top:50%;left:50%;height:215%;aspect-ratio:1;transform:translate(-50%,-50%);background-image:url(/art/mark-sunk.png);background-size:contain;background-position:center;background-repeat:no-repeat;filter:brightness(1.25) drop-shadow(0 1px 3px rgba(0,0,0,.7))}.wreck>span.is-vertical{height:auto;width:215%}.cell.aim{box-shadow:inset 0 0 0 2px var(--amber),0 0 10px #f59e0b80;animation:pulse 1.1s ease-in-out infinite}@keyframes pulse{50%{box-shadow:inset 0 0 0 2px #fde68a,0 0 16px #f59e0bcc}}.shake{animation:shake .25s ease}@keyframes shake{25%{transform:translate(-5px)}75%{transform:translate(5px)}}@media (prefers-reduced-motion: reduce){.cell.aim,.shake{animation:none}}.tray{display:flex;gap:6px}.tray-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:7px 2px;min-height:50px}.tray-item.is-selected{border-color:var(--amber);background:#1a3247}.tray-item.is-placed{opacity:.5}.tray-pips,.fleet-pips{display:flex;gap:2px}.tray-pips i{width:7px;height:11px;border-radius:2px;background:var(--ship-line)}.tray-size{font-size:.72rem;color:var(--muted);line-height:1}.tray-item.is-placed .tray-size{color:var(--green)}.fleet-status{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px}.fleet-title{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.fleet-list{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:8px}.fleet-item{display:flex;align-items:center;gap:6px;font-size:.78rem}.fleet-pips i{width:8px;height:8px;border-radius:2px;background:var(--ship-line)}.fleet-item.is-sunk{opacity:.4;text-decoration:line-through}.fleet-item.is-sunk .fleet-pips i{background:var(--red)}.fleet-name{color:var(--muted)}.log{list-style:none;margin:0;padding:0;min-height:2.5em;font-size:.78rem;color:var(--muted);display:flex;flex-direction:column;justify-content:flex-end;gap:2px}.log li:last-child{color:var(--text)}.screen-handoff{justify-content:center}.handoff-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px 20px;text-align:center;display:flex;flex-direction:column;gap:12px}.handoff-icon{font-size:2.6rem}.handoff-card h2{margin:0;font-size:1.35rem}.handoff-card p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.5}.screen-menu{justify-content:safe center}.banner{margin:0;padding:8px 12px;border-radius:10px;background:var(--panel);border:1px solid var(--line);color:var(--muted);font-size:.8rem;text-align:center}.banner-warn{border-color:#8a5a12;color:var(--amber)}.alert{margin:0;padding:10px 12px;border-radius:10px;background:#3a1616;border:1px solid #8f2f2f;color:#fecaca;font-size:.82rem}.invite{align-items:center;text-align:center}.invite .hint{text-align:center}.room-code{font-size:2.6rem;font-weight:700;letter-spacing:.35em;padding-left:.35em;color:var(--amber);font-variant-numeric:tabular-nums}.invite .btn-primary{width:100%}.join-row{display:flex;gap:8px}.code-input{flex:1;min-width:0;background:var(--bg);border:1px solid var(--line);border-radius:12px;color:var(--text);font:inherit;font-size:1.5rem;font-weight:700;letter-spacing:.3em;padding-left:calc(12px + .3em);padding-right:12px;text-align:center;min-height:52px;text-transform:uppercase}.code-input::placeholder{color:#3f5a72}.join-row .btn-secondary{flex:none;padding-inline:22px}.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--amber);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.spinner{animation-duration:3s}}.screen-result .board-wrap{max-width:min(320px,calc(100dvh - 400px))}.result-banner{margin:calc(-1*max(10px,env(safe-area-inset-top))) -14px 0;height:clamp(76px,15vh,128px);background-size:cover;background-position:center 40%;background-repeat:no-repeat}.result-head{display:flex;align-items:center;gap:12px;margin-top:-22px}.rank-medal{flex:none;display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.6))}.result-titles{flex:1;min-width:0}.result-titles h1{margin:0;font-size:1.6rem;letter-spacing:.05em;text-transform:uppercase}.result-titles .subtitle{margin:4px 0 0;font-size:.82rem}.rank-line{margin:3px 0 0;font-size:.8rem;color:var(--amber)}.rank-line small{color:var(--muted);font-weight:400}.screen.has-ability .board-wrap{max-width:min(320px,calc(100dvh - 430px))}.screen-fixed{height:100dvh;max-height:100dvh;overflow:hidden}.commander-list{display:flex;flex-direction:column;gap:8px;flex:1;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch}.commander-card{display:flex;align-items:center;gap:11px;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:9px 12px}.commander-body{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}.commander-avatar{flex:none;display:block}.commander-card.is-picked{border-color:var(--amber);background:#1a3247}.commander-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.commander-cost{color:var(--amber);font-size:.8rem;font-weight:600;white-space:nowrap}.commander-ability{color:var(--amber);font-size:.85rem}.commander-desc{color:var(--muted);font-size:.78rem;line-height:1.4}.ability-bar{display:flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px 10px}.ability-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.energy{color:var(--amber);font-weight:700;font-size:.95rem;font-variant-numeric:tabular-nums}.energy small{color:var(--muted);font-weight:400}.ability-name{font-size:.76rem;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ability-enemy{font-size:.72rem;color:var(--muted);display:flex;align-items:center;gap:4px}.btn-sm{min-height:40px;padding:8px 12px;font-size:.85rem;white-space:nowrap;flex:none}.row-actions-2{grid-template-columns:repeat(2,1fr)}.cell-mark{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:.6rem;font-weight:700;line-height:1;pointer-events:none}.cell.mark-reveal{box-shadow:inset 0 0 0 2px var(--amber)}.cell.mark-reveal .cell-mark{color:var(--amber)}.cell.mark-scan .cell-mark{color:#7dd3fc;text-shadow:0 1px 2px rgba(0,0,0,.8)}.install-banner{display:flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--amber);border-radius:12px;padding:7px 9px;position:relative}.install-banner img{flex:none;border-radius:8px;display:block}.install-banner .btn-primary{flex:none;min-height:36px;padding:6px 14px}.install-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.install-text small{color:var(--muted);font-size:.74rem;line-height:1.35}.install-text b{color:var(--text);font-weight:600}.install-close{flex:none;align-self:flex-start;background:none;border:none;color:var(--muted);font-size:.9rem;line-height:1;padding:4px 2px}