:root{color-scheme:dark;--bg:#091522;--panel:#112437;--line:#294357;--text:#edf5fa;--muted:#95afc0;--accent:#53dfc4;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 80% 0%,#18394a 0,transparent 48%),var(--bg);color:var(--text);min-height:100dvh}button,input,select{font:inherit}button{cursor:pointer;border:1px solid transparent;border-radius:12px;padding:12px 17px;background:var(--accent);color:#072b2a;font-weight:700;transition:background .15s,transform .15s}button:hover:not(:disabled){filter:brightness(1.12)}button:active:not(:disabled){transform:scale(.98)}button:disabled{opacity:.45;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #fff;outline-offset:2px}.secondary,.icon{background:#1a3448;color:var(--text);border-color:var(--line)}header{max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:15px 22px;border-bottom:1px solid #ffffff10}.brand{display:flex;gap:10px;align-items:center;background:none;color:var(--text);padding:0;text-align:left;font-size:20px}.brand img{width:47px;height:47px;object-fit:contain;border-radius:13px}.brand small{display:block;color:var(--muted);font-size:9px;letter-spacing:3px;margin-top:3px}nav{display:flex;gap:6px}.icon{width:38px;height:38px;padding:0;font-size:20px}main{max-width:1120px;margin:auto;padding:22px}.eyebrow{font-size:10px;letter-spacing:3px;color:var(--accent);font-weight:800}h1{font-size:clamp(26px,4vw,42px);line-height:1.12;margin:12px 0}h2{font-size:19px;margin:0 0 12px}h3{font-size:14px;margin:0}p{color:var(--muted);line-height:1.6;font-size:14px}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center;padding:26px 5px}.hero-art{position:relative;min-height:250px;display:grid;place-items:center;background:radial-gradient(ellipse,#37c9c31c,transparent 65%);overflow:hidden}.hero-art:before,.hero-art:after{content:'';position:absolute;border:1px solid #53dfc424;border-radius:50%;width:230px;height:230px}.hero-art:after{width:310px;height:310px}.hero-art img{width:230px;max-width:90%;height:230px;object-fit:contain;z-index:1;filter:drop-shadow(0 22px 25px #0008)}.cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}.card,.panel{background:linear-gradient(135deg,#172f43,#0f2233);border:1px solid var(--line);border-radius:18px;padding:22px}.card{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.card p{margin:2px 0 9px}.card .symbol{font-size:27px;color:var(--accent)}.card button{margin-top:auto}.footnote{font-size:12px;text-align:center;margin-top:24px}.topline{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.topline p{margin:4px 0}.badge{padding:7px 10px;background:#53dfc415;color:var(--accent);border:1px solid #53dfc433;border-radius:8px;font-size:12px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:20px}.boards{display:grid;grid-template-columns:1fr 1fr;gap:20px}.board-wrap{min-width:0}.board-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 12px}.board{display:grid;grid-template-columns:20px repeat(var(--n),minmax(0,1fr));gap:3px;user-select:none;touch-action:manipulation}.coord{display:grid;place-items:center;color:#7895a9;font-size:10px;min-width:0}.cell{padding:0;border:1px solid #284a60;border-radius:5px;background:#143047;aspect-ratio:1;min-width:0;position:relative;color:#cbe2f0;font-size:clamp(9px,1.4vw,17px);opacity:1!important}.cell.ship{background:color-mix(in srgb,var(--ship) 68%,#112437);border-color:var(--ship);box-shadow:inset 0 2px 3px #ffffff35,inset 0 -3px 4px #0003}.cell.miss:after{content:'•';font-size:24px;color:#91b2c7}.cell.hit{background:#78394b;border-color:#ff8f97}.cell.hit:after{content:'✹';color:#ffd3b8;font-size:20px}.cell.sunk{background:#9d4655;border-color:#ffbdaf}.cell.preview{background:#53dfc477;border-color:var(--accent)}.cell.invalid{background:#ff5e6a77;border-color:#ff5e6a}.cell.target:not(:disabled):hover{background:#27627a;border-color:#67dacc}.fleet{display:flex;flex-direction:column;gap:7px;margin:16px 0}.fleet-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px;background:#0c1c2b;border:1px solid var(--line);border-radius:9px;color:var(--text);font-weight:500;text-align:left;font-size:12px}.fleet-item.selected{border-color:var(--accent);background:#163a43}.mini{display:flex;gap:2px}.mini i{height:10px;width:10px;border-radius:2px;background:var(--ship)}.actions{display:flex;gap:8px;flex-wrap:wrap}.actions button{font-size:12px;padding:10px 12px}.wide{width:100%;margin-top:10px}.status{padding:12px 15px;border:1px solid #53dfc433;background:#53dfc40e;color:#c9f6ed;border-radius:12px;font-size:13px;margin:0 0 18px;min-height:44px}.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:11px;color:var(--muted);margin-top:14px}.stats{display:flex;gap:18px;font-size:12px;color:var(--muted)}.stats b{color:var(--text)}dialog{background:#102436;border:1px solid #38556a;color:var(--text);border-radius:20px;padding:24px;width:min(540px,calc(100% - 24px));max-height:90dvh;box-shadow:0 24px 80px #0009}dialog::backdrop{background:#020a13b8;backdrop-filter:blur(6px)}dialog h2{margin-bottom:15px}dialog p,dialog li{font-size:13px;color:var(--muted);line-height:1.7}dialog ul{padding-left:20px}.form-row{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:14px 0;font-size:13px}.form-row select,.join-input{background:#091a29;color:var(--text);border:1px solid #355267;border-radius:9px;padding:9px;max-width:200px}.form-row input[type=color]{border:0;width:44px;height:28px;padding:0;background:none}.form-row input[type=checkbox]{accent-color:var(--accent);width:18px;height:18px}.divider{border:0;border-top:1px solid var(--line);margin:18px 0}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);padding:12px 18px;background:#e0f9f2;color:#0c2f2b;border-radius:10px;box-shadow:0 8px 30px #0005;font-size:13px;z-index:10;display:none;max-width:90vw}.join-input{max-width:100%;text-transform:uppercase;width:100%;font-size:22px;letter-spacing:5px;margin:15px 0}.room-code{font-size:26px;letter-spacing:5px;color:var(--accent);font-weight:800}.result{text-align:center;padding:12px}.result .symbol{font-size:48px}.connection{color:#ffb759}.compact{font-size:12px}.about-img{width:85px;height:85px;object-fit:contain;display:block;margin:0 auto 16px}
@media(max-width:760px){header{padding:11px 14px}.brand{font-size:17px}.brand img{width:40px;height:40px}main{padding:16px 12px}.hero{gap:5px;padding:10px 0 22px;grid-template-columns:1.25fr 1fr}.hero-art{min-height:160px}.hero-art img{width:150px;height:150px}.hero-art:before{width:150px;height:150px}.hero-art:after{width:200px;height:200px}.hero p{font-size:12px}.hero h1{font-size:27px}.cards{gap:10px}.card{padding:17px 14px}.card h2{font-size:17px}.card p{font-size:12px}.layout{grid-template-columns:1fr}.layout aside{order:-1}.layout aside .fleet{display:grid;grid-template-columns:repeat(2,1fr);margin:10px 0}.layout aside .fleet-item:last-child{grid-column:1/-1}.panel{padding:15px}.boards{grid-template-columns:1fr;gap:22px}.boards .board-wrap{max-width:480px;width:100%;margin:auto}.boards .own .board{max-width:320px;margin:auto}.cell{border-radius:4px}.cell.hit:after{font-size:19px}.topline{align-items:flex-start}.stats{gap:10px}.board-head{margin-bottom:8px}.board{gap:3px}.form-row{gap:10px}.form-row select{max-width:170px}.footnote{margin-top:18px}.boards .own{padding-top:12px;border-top:1px solid var(--line)}}
/* Ship placement: dock below the board, pointer gestures for mouse and touch. */
.placement-title{max-width:650px;margin:0 auto 10px}.placement-title h2{margin:6px 0 0}.placement-area{max-width:650px;margin:auto}.placement-hint{font-size:12px;color:#b5cbd7;text-align:center;margin:10px 0 12px;line-height:1.5}.placement-board{padding:15px}.placement-board .board{touch-action:pan-y}.placement-board .cell.movable{cursor:grab;touch-action:none}.placement-board .cell:active{transform:none}.ship-dock{--dock-cell:clamp(8px,2.5vw,22px);--dock-gap:2px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));align-items:center;gap:4px;margin-top:12px;padding:14px 5px 10px;background:linear-gradient(145deg,#171e2d,#101725);border:1px solid #ffffff16;border-radius:20px;box-shadow:inset 0 1px 0 #ffffff05}.dock-item{background:none;color:#b9c8d5;border:0;border-radius:10px;padding:3px 0;display:flex;flex-direction:column;align-items:center;gap:7px;touch-action:none;user-select:none;min-width:0;cursor:grab;transition:opacity .15s}.dock-item:active{transform:none;cursor:grabbing}.dock-item:disabled{opacity:.23}.dock-picture{display:flex;align-items:center;justify-content:center;width:100%;height:calc(5 * var(--dock-cell) + 4 * var(--dock-gap))}.dock-ship{display:grid;grid-template-columns:repeat(var(--cols),var(--dock-cell));grid-template-rows:repeat(var(--rows),var(--dock-cell));gap:var(--dock-gap);flex:none}.dock-ship i{display:block;background:var(--ship);border:1px solid color-mix(in srgb,var(--ship),#fff 24%);border-radius:4px;box-shadow:inset 0 1px 1px #ffffff26,inset 0 -1px 2px #0002;pointer-events:auto}.dock-count{font-size:12px;font-weight:800;line-height:1;letter-spacing:.5px}.placement-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:10px 2px;color:var(--muted);font-size:11px}.placement-controls{display:flex;gap:8px;align-items:stretch}.placement-controls button{padding:11px 12px;font-size:12px}.placement-controls #start{flex:1}.placement-network{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:12px}.placement-network button{font-size:11px;padding:8px 10px}.placement-note{font-size:11px;text-align:center;line-height:1.5;margin:12px 0;color:#7895a9}.ship-ghost{position:fixed;z-index:20;pointer-events:none;opacity:.75;filter:drop-shadow(0 5px 8px #0007)}.ship-ghost .dock-ship i{pointer-events:none}.ship-ghost.invalid-drop{opacity:.45}.drag-source{opacity:.35!important}.placing-ship{user-select:none;cursor:grabbing;overscroll-behavior:none}.placement-board .cell.preview{background:#53dfc499;border-color:#b8ffeb;box-shadow:inset 0 0 0 1px #53dfc4}.placement-board .cell.invalid{background:#ff5e6a99;border-color:#ff929a}
@media(max-width:760px){.placement-title .eyebrow{font-size:9px;letter-spacing:2px}.placement-title h2{font-size:18px}.placement-title .badge{font-size:10px;padding:6px 8px}.placement-board{padding:10px}.placement-board .board{gap:2px;grid-template-columns:16px repeat(var(--n),minmax(0,1fr))}.placement-board .cell{border-radius:3px}.ship-dock{margin-top:10px;padding-top:10px;border-radius:17px}.dock-ship i{border-radius:3px}.placement-hint{font-size:11px;margin:8px 0 10px}.placement-room .room-code{font-size:20px}.placement-controls{gap:6px}.placement-controls button{padding:10px 9px;font-size:11px}}
/* Fit the complete placement screen into the available viewport. */
body.placement-mode{height:100dvh;min-height:0;display:flex;flex-direction:column;overflow:hidden}body.placement-mode>header{flex:none;width:100%}.placement-screen{flex:1;min-height:0;display:flex;flex-direction:column;width:100%;padding:12px 16px}.placement-screen .placement-title{width:100%;flex:none;margin:0 auto 4px}.placement-screen .placement-title h2{font-size:18px;margin:4px 0}.placement-screen .placement-area{width:100%;flex:1;min-height:0;display:flex;flex-direction:column;margin:0 auto}.placement-screen .placement-hint{flex:none;margin:3px 0 8px;font-size:11px;line-height:1.35}.placement-board-space{flex:1;min-height:0;min-width:0;display:flex;align-items:center;justify-content:center;container-type:size}.placement-screen .placement-board{flex:none;width:min(100cqw,100cqh);height:min(100cqw,100cqh);padding:9px;border-radius:12px}.placement-screen .placement-board .board{width:100%;height:100%;grid-template-columns:16px repeat(var(--n),minmax(0,1fr));grid-template-rows:16px repeat(var(--n),minmax(0,1fr));gap:2px}.placement-screen .placement-board .cell{aspect-ratio:auto}.placement-screen .ship-dock{flex:none;--dock-cell:clamp(7px,min(2.5vw,2.4dvh),20px);margin-top:8px;padding:8px 5px 7px}.placement-screen .dock-item{gap:5px;padding:0}.placement-screen .dock-count{font-size:11px}.placement-screen .placement-meta{flex:none;margin:7px 2px;font-size:10px}.placement-screen .placement-controls{flex:none}.placement-screen .placement-network{flex:none;margin-top:7px}.placement-screen .placement-note{display:none}.placement-screen .placement-controls button{padding:10px 12px;font-size:12px}
@media(max-width:760px){.placement-screen{padding:7px 10px 10px}.placement-screen .placement-title h2{font-size:16px}.placement-screen .placement-title .eyebrow{display:none}.placement-screen .placement-board{padding:6px}.placement-screen .placement-controls button{font-size:11px;padding:10px}.placement-screen .placement-title .badge{padding:4px 7px}.placement-screen .ship-dock{border-radius:15px}.placement-screen .placement-network .compact{font-size:10px}}
@media(max-height:550px){body.placement-mode>header{padding:6px 12px}body.placement-mode .brand img{width:30px;height:30px}body.placement-mode .brand{font-size:15px}body.placement-mode .brand small{display:none}body.placement-mode .icon{width:30px;height:30px;font-size:17px}.placement-screen{padding:4px 10px 6px}.placement-screen .placement-title h2{font-size:14px;margin:0}.placement-screen .placement-title .eyebrow{display:none}.placement-screen .placement-title .badge{font-size:9px;padding:3px 5px}.placement-screen .placement-hint{font-size:10px;margin:2px 0 4px}.placement-screen .ship-dock{--dock-cell:clamp(6px,2dvh,10px);padding:5px 4px;margin-top:4px}.placement-screen .dock-item{gap:3px}.placement-screen .dock-count{font-size:9px}.placement-screen .placement-meta{margin:4px 2px;font-size:9px}.placement-screen .placement-controls button{font-size:10px;padding:7px 9px}.placement-screen .placement-network{margin-top:3px}.placement-screen .placement-network button{font-size:9px;padding:4px 7px}.placement-screen .placement-room .room-code{font-size:14px}.placement-screen .placement-room .compact{display:none}.placement-screen .placement-board{padding:4px}.placement-screen .placement-board .board{grid-template-columns:12px repeat(var(--n),minmax(0,1fr));grid-template-rows:12px repeat(var(--n),minmax(0,1fr));gap:1px}.placement-screen .coord{font-size:8px}}
/* Keep the dock next to the board instead of separating them with empty space. */
.placement-board-space{max-height:min(650px,calc(100vw - 20px))}.placement-screen .ship-dock{display:flex;justify-content:space-between;gap:6px;--dock-cell:clamp(9px,min(4.5vw,3dvh),24px)}.placement-screen .dock-item{flex:1 1 0;min-width:min-content}.placement-screen .dock-picture{min-width:max-content}
@media(max-height:550px){.placement-screen .ship-dock{--dock-cell:clamp(6px,2dvh,10px)}}
/* Salvos: pending targets never expose hit information. */
.cell.queued{background:#26445b!important;border:2px dashed #b3d4e7!important;color:#eef8ff;font-weight:800;font-size:13px;box-shadow:none!important}.cell.queued:after{content:none!important}.cell.hit{background:var(--hit-color,#e88078)!important;border-color:var(--hit-color,#e88078)!important;box-shadow:inset 0 1px 2px #ffffff40}.cell.hit:after{content:'';position:absolute;inset:4px;border:1px solid #ffffff30;border-radius:1px}.cell.sunk{outline:2px solid #f3f8fc;outline-offset:-3px}.cell.sunk:after{content:'';border:0;background:linear-gradient(45deg,transparent 44%,#06121cbb 45%,#06121cbb 55%,transparent 56%),linear-gradient(-45deg,transparent 44%,#06121cbb 45%,#06121cbb 55%,transparent 56%)}
body.battle-mode{height:100dvh;min-height:0;overflow:hidden;display:flex;flex-direction:column}body.battle-mode>header{flex:none;width:100%}.battle-screen{display:flex;flex:1;flex-direction:column;width:100%;min-height:0;padding:12px 16px}.battle-title{flex:none;margin-bottom:8px}.battle-title h2{margin:5px 0 0;font-size:18px}.battle-screen .status{flex:none;font-size:12px;min-height:38px;margin-bottom:10px;padding:9px 12px;line-height:1.4}.battle-screen .boards{flex:1;min-height:0;grid-template-rows:minmax(0,1fr);gap:14px}.battle-screen .board-wrap{display:flex;flex-direction:column;min-height:0;padding:13px}.battle-screen .board-head{flex:none;min-height:28px;margin-bottom:6px}.battle-screen .board-head h3{font-size:13px}.battle-board-space{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;container-type:size}.battle-board-space .board{width:min(100cqw,100cqh);height:min(100cqw,100cqh);grid-template-columns:15px repeat(10,minmax(0,1fr));grid-template-rows:15px repeat(10,minmax(0,1fr));gap:2px}.battle-board-space .cell{aspect-ratio:auto}.battle-screen .legend,.battle-connection{flex:none;margin-top:7px;min-height:15px;font-size:10px}.battle-connection .compact{font-size:10px}.battle-screen .stats{font-size:11px;gap:9px}.battle-screen .wide{flex:none;font-size:12px;padding:8px}.battle-screen .own{border-top:1px solid var(--line)}
@media(max-width:760px){.battle-screen{padding:7px 10px 9px}.battle-title .eyebrow{font-size:8px;letter-spacing:1.5px}.battle-title h2{font-size:16px}.battle-screen .status{font-size:11px;margin-bottom:7px}.battle-screen .boards{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1.2fr) minmax(0,1fr);gap:7px}.battle-screen .board-wrap{max-width:none;padding:8px;margin:0}.battle-screen .board-head{margin-bottom:3px;min-height:23px}.battle-screen .board-head .badge{font-size:9px;padding:4px 7px}.battle-screen .board-head h3{font-size:11px}.battle-screen .legend,.battle-connection{margin-top:4px;min-height:12px;font-size:9px}.battle-screen .own .board{max-width:none;margin:0}.battle-screen .stats{font-size:9px;gap:6px}.battle-board-space .board{gap:1px;grid-template-columns:12px repeat(10,minmax(0,1fr));grid-template-rows:12px repeat(10,minmax(0,1fr))}.battle-screen .coord{font-size:8px}.battle-screen .cell{border-radius:2px}.battle-screen .cell.hit:after{inset:2px}.battle-screen .cell.miss:after{font-size:18px}}
@media(max-height:550px){body.battle-mode>header{padding:6px 12px}body.battle-mode .brand img{width:30px;height:30px}body.battle-mode .brand{font-size:15px}body.battle-mode .brand small{display:none}body.battle-mode .icon{width:30px;height:30px}.battle-screen{padding:4px 10px 6px}.battle-title{margin-bottom:4px}.battle-title .eyebrow{display:none}.battle-title h2{font-size:14px;margin:0}.battle-screen .status{padding:5px 8px;min-height:25px;font-size:10px;margin-bottom:4px}.battle-screen .boards{grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:minmax(0,1fr);gap:7px}.battle-screen .board-wrap{padding:5px}.battle-screen .board-head{margin-bottom:2px;min-height:20px}.battle-screen .board-head h3{font-size:10px}}
/* Every revealed hit on the player's fleet is marked with an X. */
#own .cell.hit:after{content:'X';inset:0;display:grid;place-items:center;border:0;background:none;border-radius:0;color:#fff;font-family:Arial,sans-serif;font-weight:900;font-size:clamp(10px,2.2dvh,22px);line-height:1;-webkit-text-stroke:.6px #071521;text-shadow:0 1px 1px #071521;pointer-events:none}
/* Teal water on all three boards; ship and shot states keep their own colours. */
.board{background:linear-gradient(145deg,#124953,#0d3543);border-radius:6px;box-shadow:0 0 0 4px #0b3b4655}.board .coord{color:#b1dce0}.board .cell:not(.ship):not(.hit):not(.queued):not(.preview):not(.invalid){background:linear-gradient(150deg,#227984 0%,#185f6d 55%,#154f61 100%);border-color:#40909a;box-shadow:inset 0 1px 1px #b5f6ef12,inset 0 -1px 2px #052b3b30}.board .cell.target:not(:disabled):hover{filter:brightness(1.2)}
/* About dialog: the Crapo layout adapted to the Pugna Navalis palette. */
dialog.about-open{padding:0 22px 24px;background:linear-gradient(150deg,#174957,#0c2939);border:1px solid #73cbbd80;box-shadow:0 24px 70px #000c;overflow:auto;max-width:440px}.about-open::backdrop{background:#04151ce8;backdrop-filter:blur(7px)}.about-open #close-modal{display:none}.about-header{display:flex;align-items:center;justify-content:space-between;margin:0 -22px 18px;padding:13px 15px;border-bottom:1px solid #ffffff18;background:#08283380}.about-header p{margin:0;color:#b9d1d7;font-size:13px;font-weight:800}.about-header button{width:32px;height:32px;padding:0;border:0;border-radius:9px;background:#ffffff0d;color:#e3f4f2;font-size:21px}.about-logo{width:100%;padding:18px 12px;margin-bottom:14px;border-radius:13px;background:#fff;box-shadow:0 5px 18px #0006}.about-logo img{display:block;width:min(190px,100%);height:auto;margin:auto}.about-content h2{font-size:28px;font-weight:900;margin:0 0 3px;font-family:Georgia,serif}.about-subtitle{color:#80dfcf!important;font-size:14px!important;font-weight:800;margin:0 0 16px!important}.about-features{display:grid;gap:7px;text-align:left;padding:13px;border:1px solid #ffffff16;border-radius:11px;background:#ffffff08;color:#d2e4e7;font-size:12px}.about-author{display:grid;gap:3px;margin-top:16px;padding-top:13px;border-top:1px solid #ffffff1c}.about-author b{font-size:14px}.about-author span{color:#a6c1c9;font-size:12px}