:root{color-scheme:dark;--bg: #0f1720;--panel: #172232;--panel-2: #1f2d3f;--line: #2c4056;--text: #eef5fb;--muted: #97a9ba;--water: #0d6b8f;--water-2: #0a5978;--ship: #7d8b98;--valid: #31c48d;--invalid: #f05252;--hit: #ff6b4a;--miss: #d8e3ec;--sunk: #c81e1e;--accent: #58c4dd;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at top left,rgba(49,196,141,.12),transparent 32rem),linear-gradient(145deg,#101820,#14202c 48%,#111827);color:var(--text)}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}.battleship-shell{width:min(1480px,calc(100% - 32px));margin:0 auto;padding:24px 0 36px}.app-topbar,.status-panel,.player-grid,.result-banner,.game-layout{margin-bottom:16px}.app-topbar,.status-panel{display:flex;align-items:center;justify-content:space-between;gap:20px}.topbar-actions{display:flex;align-items:center;gap:10px}.topbar-brand-row{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.portalcore-logo-link{display:inline-grid;place-items:center;width:310px;line-height:0;padding:0;transition:opacity .16s ease,transform .16s ease}.portalcore-logo-link:hover,.portalcore-logo-link:focus-visible{opacity:.94;transform:translateY(-1px)}.portalcore-logo{display:block;width:100%;height:auto}.topbar-auth-button,.topbar-user-button{min-height:54px;white-space:nowrap}.topbar-user-menu{position:relative}.topbar-user-button{display:inline-flex;align-items:center;gap:9px}.topbar-user-icon{position:relative;width:22px;height:22px;border:2px solid currentColor;border-radius:50%;flex:0 0 auto}.topbar-user-icon:before{content:"";position:absolute;left:50%;top:4px;width:6px;height:6px;border-radius:50%;background:currentColor;transform:translate(-50%)}.topbar-user-icon:after{content:"";position:absolute;left:50%;bottom:4px;width:12px;height:6px;border-radius:999px 999px 0 0;background:currentColor;transform:translate(-50%)}.topbar-user-name{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar-user-caret{font-size:.72rem;line-height:1;opacity:.78}.topbar-user-dropdown{position:absolute;right:0;top:calc(100% + 8px);z-index:20;display:none;min-width:190px;overflow:hidden;border:1px solid rgba(151,169,186,.24);border-radius:8px;background:#172232;box-shadow:0 18px 42px #00000057}.topbar-user-menu.is-open .topbar-user-dropdown{display:grid}.topbar-user-dropdown a{padding:12px 14px;color:var(--text);font-weight:800;text-decoration:none}.topbar-user-dropdown a:hover,.topbar-user-dropdown a:focus-visible{background:#58c4dd29;color:var(--text);text-decoration:none}.app-topbar h1,.status-panel h2,.board-panel h2,.control-panel h2,.player-card h3{margin:0;letter-spacing:0}.app-topbar h1{font-size:clamp(2rem,4vw,4.5rem);line-height:.95}.eyebrow,.player-card__eyebrow{display:block;margin-bottom:6px;color:var(--accent);font-size:.75rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.mode-toggle,.segmented{display:inline-grid;grid-auto-flow:column;gap:4px;padding:4px;border:1px solid var(--line);border-radius:8px;background:#0f1720b8}.mode-toggle button,.segmented button{min-width:44px;border:0;border-radius:6px;padding:9px 13px;background:transparent;color:var(--muted);font-weight:800}.mode-toggle button.is-active,.segmented button.is-active{background:var(--accent);color:#06222b}.status-panel,.board-panel,.control-panel,.player-card{border:1px solid rgba(151,169,186,.2);border-radius:8px;background:#172232d6;box-shadow:0 16px 36px #0003}.status-panel{padding:16px}.status-panel h2{margin-top:8px;font-size:1.35rem}.status-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.button{border:1px solid transparent;border-radius:7px;padding:10px 14px;background:var(--accent);color:#06222b;font-weight:850}.button--ghost{border-color:var(--line);background:#ffffff0a;color:var(--text)}.button--danger{background:#ef4444;color:#fff}.icon-button{display:inline-grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:7px;background:#ffffff0f;color:var(--text)}.status-pill{display:inline-flex;align-items:center;height:26px;border-radius:999px;padding:0 10px;background:#58c4dd24;color:var(--accent);font-size:.76rem;font-weight:900;text-transform:uppercase}.status-pill--playing{background:#31c48d24;color:var(--valid)}.status-pill--finished{background:#f0525229;color:#ff9b9b}.muted,.turn-line,.error-line{margin:7px 0 0;color:var(--muted)}.error-line{color:#ffb4a8}.result-banner{display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid rgba(49,196,141,.34);border-radius:8px;padding:18px;background:linear-gradient(135deg,#31c48d38,#58c4dd1f),#172232eb;box-shadow:0 18px 46px #00000047;animation:result-rise .42s ease}.result-banner--loss{border-color:#f052526b;background:linear-gradient(135deg,#f0525233,#58c4dd14),#172232eb}.result-banner h2{margin:0;font-size:clamp(2rem,4vw,4.2rem);line-height:.95;text-transform:uppercase}.result-banner p{margin:8px 0 0;color:var(--muted);font-weight:700}.result-banner__actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.player-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.player-card{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:112px;padding:16px}.player-card.is-active{border-color:#58c4ddb8;box-shadow:0 0 0 1px #58c4dd42,0 18px 42px #0000003d}.player-card 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span{width:48%;aspect-ratio:1;border-radius:50%}.battle-cell--water{background:linear-gradient(135deg,rgba(255,255,255,.08),transparent),var(--water-2)}.battle-cell--ship{background:linear-gradient(135deg,#a5b4c1,var(--ship))}.battle-cell--valid{background:#31c48dc7}.battle-cell--invalid{background:#f05252d6}.battle-cell--hit{animation:hit-pulse .46s ease;background:var(--hit)}.battle-cell--hit span,.battle-cell--sunk span{background:#1c0b08d1}.battle-cell--miss span{background:var(--miss)}.battle-cell--sunk{background:repeating-linear-gradient(135deg,var(--sunk),var(--sunk) 6px,#7f1d1d 6px,#7f1d1d 12px)}.control-panel{padding:14px}.ship-dock-hint{margin:-4px 0 12px;color:var(--muted);font-size:.84rem;font-weight:750;line-height:1.35}.invite-panel .control-panel__header{flex-wrap:wrap}.segmented--compact{grid-template-columns:repeat(3,minmax(96px,1fr))}.segmented--compact 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button{padding:8px;color:var(--muted)}.fleet-status-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.ship-dock-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.fleet-status-token{display:grid;place-items:center;min-height:36px;width:100%;border:1px solid var(--line);border-radius:7px;background:#ffffff0b;color:var(--text)}.fleet-status-token[draggable=true]{cursor:grab}.fleet-status-token[draggable=true]:active{cursor:grabbing}.fleet-status-token.is-placed{border-color:#58c4dd7a}.fleet-status-token.is-sunk{border-color:#f052529e;background:#f052522e}.fleet-status-token__cells{display:grid;grid-auto-flow:column;grid-auto-columns:12px;gap:3px;width:max-content}.fleet-status-token__cells i{display:block;aspect-ratio:1;border-radius:3px;background:var(--ship)}.fleet-status-token__cells i.is-placed{background:var(--accent)}.fleet-status-token__cells i.is-hit,.fleet-status-token.is-sunk .fleet-status-token__cells 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var(--line);border-radius:8px;background:#0f1720b8}.auth-mode-toggle button{min-height:38px;border:0;border-radius:6px;padding:8px 10px;background:transparent;color:var(--muted);font-weight:850}.auth-mode-toggle button.is-active{background:var(--accent);color:#06222b}.login-form label{display:grid;gap:6px;color:var(--muted);font-size:.82rem;font-weight:800}.login-form input{width:100%;min-width:0;border:1px solid var(--line);border-radius:7px;padding:11px 12px;background:#ffffff0f;color:var(--text);font:inherit}.login-modal__actions{justify-content:flex-end;margin-top:4px}.history-backdrop{z-index:30}.history-modal{display:grid;grid-template-rows:auto minmax(0,1fr);width:min(1160px,calc(100vw - 32px));max-height:min(860px,calc(100vh - 32px));border:1px solid rgba(151,169,186,.28);border-radius:8px;background:#172232fc;box-shadow:0 28px 74px 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var(--line);border-radius:7px;padding:10px;background:#ffffff0b;color:var(--text);text-align:left}.history-game.is-active{border-color:#58c4ddb8;background:#58c4dd1f}.history-game strong,.history-game small{display:block}.history-game small{margin-top:3px;color:var(--muted)}.history-replay-panel{overflow:auto}.history-replay-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px}.history-replay-controls{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:7px}.history-replay-controls .button{padding:7px 10px}.history-replay-grid{display:grid;grid-template-columns:minmax(220px,280px) minmax(220px,280px) minmax(180px,1fr);gap:16px;align-items:start}.history-replay-board{display:grid;grid-template-columns:repeat(10,minmax(16px,1fr));aspect-ratio:1;gap:3px}.history-replay-cell{display:grid;place-items:center;border:1px solid rgba(216,227,236,.14);border-radius:4px;background:linear-gradient(135deg,rgba(255,255,255,.08),transparent),var(--water-2)}.history-replay-cell span{width:46%;aspect-ratio:1;border-radius:50%}.history-replay-cell.has-ship{background:linear-gradient(135deg,#a5b4c1,var(--ship))}.history-replay-cell.is-miss span{background:var(--miss)}.history-replay-cell.is-hit{background:var(--hit)}.history-replay-cell.is-hit span,.history-replay-cell.is-sunk span{background:#1c0b08d1}.history-replay-cell.is-sunk{background:repeating-linear-gradient(135deg,var(--sunk),var(--sunk) 6px,#7f1d1d 6px,#7f1d1d 12px)}.history-replay-label{margin:8px 0 0;color:var(--muted);font-size:.82rem;font-weight:800;text-align:center}.history-move-list{display:flex;flex-wrap:wrap;align-content:flex-start;gap:7px;max-height:440px;margin:0;padding:0;overflow:auto;list-style:none}.history-move-list button{border:1px solid var(--line);border-radius:6px;padding:7px 9px;background:#ffffff0d;color:var(--text);font-size:.78rem}.history-move-list button.is-active{border-color:#58c4ddb8;background:#58c4dd29}.history-empty-state{display:grid;place-content:center;min-height:460px;text-align:center}.result-list{margin-top:10px}.result-list button{display:grid;gap:3px;padding:10px;text-align:left}.result-list span,.invite-item span{color:var(--muted);font-size:.82rem}.invite-list{margin-top:12px}.invite-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px}.invite-item button{border:1px solid var(--line);border-radius:6px;margin-left:6px;padding:6px 8px;background:#ffffff14;color:var(--text)}.action-log ol{display:grid;gap:8px;max-height:360px;margin:0;padding:0;overflow:auto;list-style:none}.log-entry{border-left:3px solid var(--accent);padding:4px 0 4px 10px}.log-entry--success{border-left-color:var(--valid)}.log-entry--warning{border-left-color:var(--invalid)}.log-entry span{color:var(--muted);font-size:.74rem}.log-entry p{margin:2px 0 0}@keyframes hit-pulse{0%{transform:scale(.92)}55%{transform:scale(1.07)}to{transform:scale(1)}}@keyframes result-rise{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:1180px){.game-layout,.board-stack{grid-template-columns:1fr}}@media(max-width:760px){.battleship-shell{width:min(100% - 20px,720px);padding-top:14px}.app-topbar,.status-panel,.result-banner,.player-card{align-items:stretch;flex-direction:column}.player-grid{grid-template-columns:1fr}.status-actions{justify-content:stretch}.status-actions .button,.mode-toggle,.topbar-actions{width:100%}.topbar-actions{align-items:stretch;flex-direction:column}.topbar-brand-row{align-items:flex-start;gap:12px}.portalcore-logo-link{width:100%;max-width:310px}.topbar-auth-button,.topbar-user-menu,.topbar-user-button{width:100%}.topbar-user-dropdown{left:0;right:auto;width:100%}.battle-board{gap:3px}.board-panel__header{gap:8px}.board-panel__title-row{flex:1 1 auto;gap:8px}.board-panel__title-row h2{font-size:clamp(1.55rem,7vw,2.45rem);line-height:1.05}.board-randomize-button{width:34px;min-width:34px;padding:0;justify-content:center}.board-randomize-button__label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.board-panel__meta,.result-banner__actions{justify-content:flex-start}.history-modal__body,.history-replay-grid{grid-template-columns:1fr}.history-list-panel{border-right:0;border-bottom:1px solid rgba(151,169,186,.18)}.history-replay-head{display:grid}}