*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;background:#dfeef0;color:#171717}button,input,select{font:inherit}button{touch-action:manipulation}body{display:grid;grid-template-rows:auto 1fr}.topbar{min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:7px 12px;background:rgba(255,255,255,.96);border-bottom:1px solid #777;position:relative;z-index:8}.brand{white-space:nowrap}.brand small{font-weight:400;color:#555}.top-actions{display:flex;gap:14px;align-items:center}.archive-link{color:#174f7a;font-weight:650;text-decoration:none}.world{display:flex;align-items:flex-end;flex-direction:column;font-size:.82rem;color:#444;line-height:1.25}.world #status{font-weight:650;color:#171717}main{position:relative;min-height:0;background:#b9d9df;overflow:hidden}.terrain-webgl,#game{position:absolute;inset:0;display:block;width:100%;height:100%}.terrain-webgl{z-index:0;pointer-events:none}.terrain-webgl[hidden]{display:none}#game{z-index:1;touch-action:none;outline:none}.hud{position:absolute;left:50%;bottom:max(10px,env(safe-area-inset-bottom));transform:translateX(-50%);display:grid;grid-template-columns:auto auto;grid-template-areas:"tools tools" "objects objects" "inventory move" "finds move" "target move";gap:6px 12px;align-items:center;background:rgba(255,255,255,.94);border:1px solid #555;border-radius:13px;padding:9px 11px;box-shadow:0 3px 14px rgba(0,0,0,.18);backdrop-filter:blur(4px);max-width:min(850px,calc(100% - 330px));z-index:4}.tools{grid-area:tools;display:flex;gap:6px;flex-wrap:wrap}.tools button,.move-pad button,.object-tools button{min-height:40px;border:2px solid #555;border-radius:9px;background:#fff;padding:5px 9px;color:#111}.tools button.selected,.object-tools button.selected{border-width:3px;background:#e7f1ff;border-color:#174f7a}.object-drawer{grid-area:objects;font-size:.85rem}.object-drawer summary{cursor:pointer;font-weight:700}.object-tools{display:flex;gap:5px;flex-wrap:wrap;padding-top:6px;max-height:92px;overflow:auto}.object-tools button{min-height:34px;padding:3px 8px}.sign-options{display:flex;align-items:center;gap:6px;margin-top:6px}.sign-options input{min-width:180px;max-width:320px}.move-pad{grid-area:move;display:flex;gap:4px}.move-pad button{padding:4px;min-width:42px}.tools button:focus-visible,.move-pad button:focus-visible,.object-tools button:focus-visible{outline:3px solid #111;outline-offset:2px}#inventory{grid-area:inventory;font-weight:700;white-space:nowrap}.finds{grid-area:finds;font-size:.78rem;color:#51452e}.finds strong{color:#171717}#target-status{grid-area:target;font-size:.78rem;color:#333;min-height:1em}.social{position:absolute;right:10px;top:10px;bottom:10px;width:300px;background:rgba(255,255,255,.95);border:1px solid #555;border-radius:13px;box-shadow:0 3px 14px rgba(0,0,0,.18);z-index:5;padding:9px;display:grid;grid-template-rows:auto auto 1fr auto auto auto;gap:7px;transition:transform .18s}.social.closed{transform:translateX(calc(100% + 14px))}.social.closed #social-toggle{position:absolute;right:calc(100% + 8px);top:0;background:#fff;border:1px solid #555;border-radius:8px;padding:8px}.social-head{display:flex;justify-content:space-between;align-items:center}.social-head button,.my-name button,.chat-form button{border:1px solid #555;border-radius:7px;background:#fff;padding:5px 8px}.my-name{display:flex;gap:5px}.my-name input{min-width:0;flex:1;border:1px solid #888;border-radius:7px;padding:5px}.chat-log{min-height:80px;overflow:auto;border:1px solid #aaa;border-radius:8px;background:#f9fbfb;padding:5px;display:flex;flex-direction:column;gap:4px}.chat-line{font-size:.8rem;line-height:1.35}.chat-line .scope{font-size:.68rem;padding:1px 4px;border-radius:999px;background:#e4edf5;margin-right:4px}.chat-line.global .scope{background:#f7e7c7}.chat-line strong{margin-right:4px}.chat-report{margin-left:4px;border:1px solid #aaa;border-radius:5px;background:#fff;padding:0 4px;font-size:.66rem;line-height:1.45;vertical-align:baseline}.chat-form{display:grid;grid-template-columns:64px 1fr auto;gap:4px}.chat-range-note{grid-column:1/-1;color:#555;font-size:.68rem;line-height:1.25;padding-left:2px}.chat-form select,.chat-form input,.report-control select{min-width:0;border:1px solid #888;border-radius:7px;padding:5px}.reactions{display:flex;justify-content:space-between;gap:4px}.reactions button{flex:1;min-height:35px;border:1px solid #aaa;border-radius:8px;background:#fff}.people{font-size:.8rem;max-height:180px;overflow:auto}.people summary{cursor:pointer;font-weight:700}.report-control{padding:5px 0}.people-list{display:flex;flex-direction:column;gap:3px}.person{display:grid;grid-template-columns:1fr auto auto;gap:4px;align-items:center;border-top:1px solid #ddd;padding-top:3px}.person button{border:1px solid #aaa;border-radius:6px;background:#fff;padding:2px 5px;font-size:.72rem}.toast{position:absolute;left:50%;top:20px;transform:translateX(-50%) translateY(-20px);opacity:0;pointer-events:none;background:rgba(20,20,20,.9);color:#fff;border-radius:999px;padding:8px 14px;z-index:20;transition:.18s}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.modal{position:fixed;inset:0;z-index:30;background:rgba(34,48,50,.62);display:grid;place-items:center;padding:20px}.modal.hidden{display:none}.modal-card{width:min(430px,100%);background:#fff;border-radius:18px;padding:22px;box-shadow:0 12px 50px rgba(0,0,0,.3);display:grid;gap:12px}.modal-card h1{font-size:1.45rem;margin:0}.modal-card p{margin:0;color:#444}.modal-card input{font-size:1.1rem;border:2px solid #777;border-radius:9px;padding:10px}.modal-card button{border:0;border-radius:9px;background:#175f91;color:#fff;padding:11px;font-weight:700}.modal-card small{color:#666;text-align:center}@media(pointer:fine){#game{cursor:crosshair}#game.panning{cursor:grabbing}}@media(max-width:900px){.hud{max-width:calc(100% - 20px);left:10px;transform:none}.social{width:min(300px,calc(100% - 20px))}}@media(max-width:680px){.topbar{min-height:46px;padding:5px 9px;font-size:.9rem}.brand span[lang="en"]{display:none}.archive-link{font-size:.78rem}.world{font-size:.68rem}.hud{width:calc(100% - 14px);left:7px;bottom:max(7px,env(safe-area-inset-bottom));grid-template-columns:1fr;grid-template-areas:"tools" "objects" "inventory" "finds" "target" "move";gap:5px;justify-items:center;padding:7px}.tools{width:100%}.tools button{flex:1;min-width:62px;padding:4px}.object-drawer{width:100%}.object-tools{max-height:78px}.move-pad{width:100%;justify-content:center}.move-pad button{flex:1;max-width:72px}#inventory{font-size:.86rem}.social{top:6px;right:6px;bottom:6px}.social.closed{transform:translateX(calc(100% + 10px))}.toast{top:8px;max-width:90%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}
.chat-line.self .scope{background:#dff4df;font-weight:700}.chat-line.self strong{font-weight:750}

/* hotfix7: compact object picker. Opening the picker must not push the game view upward. */
.object-drawer{position:relative;min-width:132px}
.object-drawer>summary{list-style:none;display:inline-flex;align-items:center;gap:5px;border:1px solid #777;border-radius:8px;background:#fff;padding:5px 9px;user-select:none}
.object-drawer>summary::-webkit-details-marker{display:none}
.object-drawer[open]>summary{border-color:#174f7a;background:#edf5ff}
.object-panel{display:none;position:absolute;left:50%;bottom:calc(100% + 9px);transform:translateX(-50%);width:min(620px,calc(100vw - 340px));background:rgba(255,255,255,.98);border:1px solid #666;border-radius:11px;padding:8px;box-shadow:0 5px 20px rgba(0,0,0,.22);z-index:12}
.object-drawer[open] .object-panel{display:block}
.object-panel .object-tools{display:flex;flex-wrap:nowrap;gap:5px;max-height:none;overflow-x:auto;overflow-y:hidden;padding:1px 1px 6px;scrollbar-width:thin}
.object-panel .object-tools button{flex:0 0 auto;min-height:36px;white-space:nowrap}
.object-panel .sign-options{display:flex;gap:6px;margin:2px 0 3px;align-items:center}
.object-panel .sign-options input{min-width:0;width:min(360px,70vw);padding:5px 7px;border:1px solid #888;border-radius:7px}
.object-panel-hint{display:block;color:#666;font-size:.7rem;line-height:1.2}
@media(max-width:900px){.object-panel{width:min(560px,calc(100vw - 24px))}}
@media(max-width:680px){.object-drawer{width:auto;max-width:100%}.object-panel{position:fixed;left:8px;right:8px;bottom:calc(max(8px,env(safe-area-inset-bottom)) + 148px);transform:none;width:auto;padding:7px}.object-panel .object-tools{max-height:none}.object-panel-hint{display:none}}
.hud{backdrop-filter:none;-webkit-backdrop-filter:none}


/* dev18 terrain debug panel: isolated so it can be removed later with one module + this block. */
.terrain-debug-panel{position:fixed;left:10px;top:64px;z-index:26;width:min(360px,calc(100vw - 20px));background:rgba(255,255,255,.96);border:1px solid #666;border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.22);padding:0;color:#171717;font-size:.84rem}.terrain-debug-panel details{padding:10px}.terrain-debug-panel summary{cursor:pointer;font-weight:800;user-select:none}.terrain-debug-hint{margin:8px 0;color:#444;line-height:1.35}.terrain-debug-panel code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.78rem}.terrain-debug-info{margin:6px 0 10px;color:#555;font-size:.76rem}.terrain-debug-tools{margin:8px 0 10px;padding:8px;border:1px solid #aaa;border-radius:8px;display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.terrain-debug-tools legend{font-weight:750;padding:0 4px}.terrain-debug-tools label{display:flex;align-items:center;gap:4px;white-space:nowrap}.terrain-debug-tools input{inline-size:18px;block-size:18px}.terrain-debug-tools-note{grid-column:1/-1;color:#666}.terrain-debug-tools:disabled{opacity:.55}.terrain-debug-craft{display:grid;grid-template-columns:auto repeat(3,1fr);gap:6px;align-items:center;margin:6px 0 8px}.terrain-debug-craft strong{font-size:.78rem;white-space:nowrap}.terrain-debug-craft button{border:1px solid #777;border-radius:7px;background:#fff;padding:5px 6px;font:inherit;cursor:pointer}.terrain-debug-craft button:hover{background:#f3f3f3}.terrain-debug-grid{display:grid;gap:8px}.terrain-debug-row{display:grid;grid-template-columns:90px 1fr 68px 44px;gap:6px;align-items:center}.terrain-debug-name{font-weight:650}.terrain-debug-range{width:100%}.terrain-debug-number{width:100%;border:1px solid #999;border-radius:6px;padding:4px 5px}.terrain-debug-value{text-align:right;font-size:.75rem;color:#555}.terrain-debug-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.terrain-debug-actions button{border:1px solid #666;border-radius:8px;background:#fff;padding:6px 9px}.terrain-debug-output{width:100%;margin-top:8px;border:1px solid #999;border-radius:8px;padding:8px;font:12px/1.35 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical;background:#fafafa;color:#171717}@media(max-width:680px){.terrain-debug-panel{top:52px;left:6px;width:min(360px,calc(100vw - 12px))}.terrain-debug-row{grid-template-columns:78px 1fr 62px 38px;font-size:.78rem}}

/* dev28 terrain debug compact viewport pass: keep the tool bar reachable and scroll only settings. */
.terrain-debug-panel{max-height:calc(100dvh - 76px);overflow:hidden}
.terrain-debug-root[open]{display:grid;grid-template-rows:auto auto minmax(0,1fr);max-height:calc(100dvh - 76px)}
.terrain-debug-root>summary{padding:10px 10px 7px}
.terrain-debug-static{padding:0 10px;background:rgba(255,255,255,.98);position:relative;z-index:1}
.terrain-debug-static .terrain-debug-hint{margin-top:2px}
.terrain-debug-static .terrain-debug-tools{margin-bottom:8px}
.terrain-debug-scroll{min-height:0;overflow:auto;overscroll-behavior:contain;padding:2px 10px 10px;scrollbar-width:thin}
.terrain-debug-groups{display:grid;gap:7px}
.terrain-debug-section{border:1px solid #c2c2c2;border-radius:8px;background:rgba(250,250,250,.82)}
.terrain-debug-section>summary{padding:6px 8px;font-weight:750;position:sticky;top:0;background:rgba(250,250,250,.97);border-radius:8px;z-index:1}
.terrain-debug-section[open]>summary{border-bottom:1px solid #ddd;border-radius:8px 8px 0 0}
.terrain-debug-section .terrain-debug-grid{padding:7px;gap:6px}
.terrain-debug-json{margin-top:8px;border:1px solid #ccc;border-radius:8px;background:#fafafa}
.terrain-debug-json>summary{padding:6px 8px;font-weight:700}
.terrain-debug-json .terrain-debug-output{margin:0;border:0;border-top:1px solid #ddd;border-radius:0 0 8px 8px;resize:vertical;max-height:180px}

@media (max-height:850px) and (min-width:900px){
  .terrain-debug-panel{top:58px;width:min(620px,calc(100vw - 340px));max-height:calc(100dvh - 66px);font-size:.79rem}
  .terrain-debug-root[open]{max-height:calc(100dvh - 66px)}
  .terrain-debug-hint{display:none}
  .terrain-debug-info{margin:1px 0 5px;font-size:.7rem}
  .terrain-debug-tools{padding:5px 7px;margin:4px 0 6px;gap:4px}
  .terrain-debug-tools input{inline-size:16px;block-size:16px}
  .terrain-debug-tools-note{font-size:.7rem}
  .terrain-debug-groups{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
  .terrain-debug-section .terrain-debug-grid{padding:5px;gap:4px}
  .terrain-debug-row{grid-template-columns:92px minmax(74px,1fr) 56px 34px;gap:4px;min-height:26px}
  .terrain-debug-number{padding:2px 4px}
  .terrain-debug-value{font-size:.68rem}
  .terrain-debug-actions{margin-top:7px}
  .terrain-debug-actions button{padding:4px 7px}
}

@media (max-height:650px) and (min-width:900px){
  .terrain-debug-panel{top:54px;max-height:calc(100dvh - 60px)}
  .terrain-debug-root[open]{max-height:calc(100dvh - 60px)}
  .terrain-debug-tools-note{display:none}
  .terrain-debug-root>summary{padding:6px 10px 4px}
  .terrain-debug-static{padding:0 8px}
  .terrain-debug-scroll{padding:1px 8px 8px}
}

@media(max-width:680px){
  .terrain-debug-panel{max-height:calc(100dvh - 58px)}
  .terrain-debug-root[open]{max-height:calc(100dvh - 58px)}
  .terrain-debug-groups{grid-template-columns:1fr}
}


/* dev31 sand-craft drawer: compact controls with no permanent loss of sandbox view. */
.drawer-row{grid-area:objects;display:flex;align-items:center;justify-content:center;gap:7px;min-width:0}.drawer-row .object-drawer{grid-area:auto}.craft-drawer{position:relative;font-size:.85rem;min-width:108px}.craft-drawer>summary{cursor:pointer;font-weight:700;list-style:none;display:inline-flex;align-items:center;gap:5px;border:1px solid #777;border-radius:8px;background:#fff;padding:5px 9px;user-select:none}.craft-drawer>summary::-webkit-details-marker{display:none}.craft-drawer[open]>summary{border-color:#174f7a;background:#edf5ff}.craft-panel{display:none;position:absolute;left:50%;bottom:calc(100% + 9px);transform:translateX(-50%);width:min(390px,calc(100vw - 340px));background:rgba(255,255,255,.98);border:1px solid #666;border-radius:11px;padding:8px;box-shadow:0 5px 20px rgba(0,0,0,.22);z-index:12}.craft-drawer[open] .craft-panel{display:block}.craft-tools{display:flex;gap:6px;flex-wrap:nowrap}.craft-tools button{flex:1;min-height:38px;border:2px solid #555;border-radius:9px;background:#fff;padding:5px 9px;color:#111;white-space:nowrap}.craft-tools button.selected{border-width:3px;background:#e7f1ff;border-color:#174f7a}.craft-tools button:focus-visible{outline:3px solid #111;outline-offset:2px}.craft-panel-hint{display:block;margin-top:6px;color:#555;font-size:.72rem;line-height:1.3}@media(max-width:900px){.craft-panel{width:min(390px,calc(100vw - 24px))}}@media(max-width:680px){.drawer-row{width:100%;justify-content:center}.craft-drawer{min-width:0}.craft-panel{position:fixed;left:8px;right:8px;bottom:calc(max(8px,env(safe-area-inset-bottom)) + 148px);transform:none;width:auto;padding:7px}.craft-tools button{min-height:42px}.craft-panel-hint{font-size:.7rem}}

/* dev35: six rich sand-craft tools stay compact in a two-row popover. */
.craft-panel{width:min(520px,calc(100vw - 340px))}
.craft-tools{flex-wrap:wrap}
.craft-tools button{flex:1 1 92px}
.terrain-debug-craft{grid-template-columns:repeat(3,minmax(0,1fr))}
.terrain-debug-craft strong{grid-column:1/-1}
@media(max-width:900px){.craft-panel{width:min(520px,calc(100vw - 24px))}}
@media(max-width:680px){.craft-tools button{flex:1 1 30%;min-height:42px}}

.craft-settings{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin-top:8px;padding-top:8px;border-top:1px solid #c9c9c9}.craft-settings label{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:5px;font-size:.78rem;font-weight:700}.craft-settings select{min-width:0;width:100%;min-height:34px;border:1px solid #777;border-radius:7px;background:#fff;color:#111;padding:3px 5px;font:inherit}.craft-settings select:focus-visible{outline:3px solid #111;outline-offset:2px}@media(max-width:680px){.craft-settings{grid-template-columns:1fr 1fr;gap:5px}.craft-settings label{grid-template-columns:1fr;font-size:.72rem}.craft-settings select{min-height:38px}}

/* dev41: debug-only sand-craft tuner for quickly comparing build proportions. */
.terrain-debug-craft-tuner{margin:6px 0 8px;padding:8px;border:1px solid #aaa;border-radius:8px;display:grid;gap:6px}.terrain-debug-craft-tuner legend{font-weight:800;padding:0 4px}.terrain-debug-craft-tuner label{display:grid;grid-template-columns:62px 1fr 112px;gap:6px;align-items:center}.terrain-debug-craft-tuner input[type="range"]{width:100%;min-width:0}.terrain-debug-craft-tuner strong{font-size:.74rem;text-align:right;white-space:nowrap}.terrain-debug-craft-tuner-note{color:#666;line-height:1.25}.terrain-debug-craft-tuner button{justify-self:start;border:1px solid #777;border-radius:7px;background:#fff;padding:4px 7px;cursor:pointer}@media(max-width:680px){.terrain-debug-craft-tuner label{grid-template-columns:52px 1fr 100px;font-size:.76rem}.terrain-debug-craft-tuner strong{font-size:.68rem}}
.audio-settings{position:relative}.audio-settings>summary{list-style:none;cursor:pointer;border:1px solid #777;border-radius:8px;background:#fff;padding:6px 9px;font-weight:700;white-space:nowrap}.audio-settings>summary::-webkit-details-marker{display:none}.audio-settings>summary:focus-visible{outline:3px solid #111;outline-offset:2px}.audio-panel{position:absolute;right:0;top:calc(100% + 7px);width:min(330px,calc(100vw - 20px));display:grid;gap:8px;padding:11px;background:rgba(255,255,255,.98);border:1px solid #666;border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.2);z-index:25}.audio-panel label{display:grid;grid-template-columns:82px minmax(0,1fr);align-items:center;gap:8px;font-size:.82rem}.audio-panel select,.audio-panel input[type="file"]{min-width:0;max-width:100%;border:1px solid #888;border-radius:7px;background:#fff;padding:5px}.audio-file-row{grid-template-columns:82px minmax(0,1fr)!important}.audio-file-row span{grid-column:2;font-size:.72rem;color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.audio-slider{grid-template-columns:62px minmax(0,1fr) 42px!important}.audio-slider input[type="range"]{width:100%;min-width:0}.audio-slider output{text-align:right;font-variant-numeric:tabular-nums}.audio-panel small{font-size:.7rem;line-height:1.4;color:#555}.audio-panel [hidden]{display:none!important}@media(max-width:680px){.top-actions{gap:7px}.audio-settings>summary{padding:5px 7px}.audio-panel{position:fixed;right:7px;top:52px;width:min(330px,calc(100vw - 14px));max-height:calc(100vh - 64px);overflow:auto}.archive-link{white-space:nowrap}}

/* dev53: lightweight local avatar editor. */
.appearance-settings{position:relative}.appearance-settings>summary{list-style:none;cursor:pointer;border:1px solid #777;border-radius:8px;background:#fff;padding:6px 9px;font-weight:700;white-space:nowrap}.appearance-settings>summary::-webkit-details-marker{display:none}.appearance-settings>summary:focus-visible{outline:3px solid #111;outline-offset:2px}.appearance-panel{position:absolute;right:0;top:calc(100% + 7px);width:min(370px,calc(100vw - 20px));display:grid;grid-template-columns:112px minmax(0,1fr);gap:10px;padding:11px;background:rgba(255,255,255,.98);border:1px solid #666;border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.2);z-index:26}.appearance-panel #look-preview{width:112px;height:112px;border:1px solid #aaa;border-radius:12px;background:linear-gradient(#eaf5f6 0 58%,#ead5a7 58%);align-self:start}.appearance-fields{display:grid;grid-template-columns:1fr 1fr;gap:6px 8px;min-width:0}.appearance-fields label{display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:5px;font-size:.76rem}.appearance-fields select{min-width:0;width:100%;border:1px solid #888;border-radius:7px;background:#fff;padding:5px}.appearance-actions{grid-column:1/-1;display:flex;gap:6px;justify-content:flex-end}.appearance-actions button{min-height:36px;border:1px solid #666;border-radius:8px;background:#fff;padding:5px 9px;font-weight:650}.appearance-actions button.primary{background:#175f91;color:#fff;border-color:#175f91}.appearance-actions button:focus-visible,.appearance-fields select:focus-visible{outline:3px solid #111;outline-offset:2px}.appearance-panel small{grid-column:1/-1;font-size:.7rem;line-height:1.4;color:#555}.appearance-panel [hidden]{display:none!important}@media(max-width:680px){.appearance-settings>summary{padding:5px 7px}.appearance-summary-text{display:none}.appearance-panel{position:fixed;right:7px;top:52px;width:min(370px,calc(100vw - 14px));max-height:calc(100vh - 64px);overflow:auto;grid-template-columns:92px minmax(0,1fr);gap:8px}.appearance-panel #look-preview{width:92px;height:92px}.appearance-fields{grid-template-columns:1fr}.appearance-fields label{grid-template-columns:48px minmax(0,1fr)}.appearance-actions{justify-content:stretch}.appearance-actions button{flex:1;min-height:42px;padding:5px 6px}}

/* dev54-hotfix3: mobile-first flow. Secondary drawers stay one row below primary tools; movement floats over the sandbox. */
.mobile-menu-toggle,.mobile-social-open,.mobile-chat-shortcut{display:none}
.top-actions-panel{display:flex;gap:14px;align-items:center}
.hud-info{display:contents}

@media(max-width:680px){
  .topbar{min-height:44px;height:44px;padding:4px 7px;gap:6px;z-index:30}
  .brand{min-width:0;display:flex;align-items:center;gap:4px;font-size:.92rem}
  .brand span[lang="en"],.brand small{display:none}
  .top-actions{margin-left:auto;display:flex;align-items:center;gap:5px}
  .mobile-chat-shortcut,.mobile-menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:36px;padding:0;border:1px solid #666;border-radius:9px;background:#fff;font-size:1.18rem;font-weight:800;color:#111}
  .mobile-menu-toggle[aria-expanded="true"]{background:#e7f1ff;border-color:#174f7a}
  .mobile-chat-shortcut{position:relative;font-size:1.08rem}.mobile-chat-shortcut:active{background:#e7f1ff;border-color:#174f7a}.mobile-chat-shortcut.has-unread::after{content:"";position:absolute;right:4px;top:3px;width:8px;height:8px;border:2px solid #fff;border-radius:50%;background:#c83d30}
  .top-actions-panel{display:none;position:fixed;top:49px;right:7px;width:min(270px,calc(100vw - 14px));padding:8px;background:rgba(255,255,255,.985);border:1px solid #666;border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.22);z-index:31;grid-template-columns:1fr 1fr;gap:7px;align-items:stretch}
  .top-actions.menu-open .top-actions-panel{display:grid}
  .mobile-social-open{display:flex;align-items:center;justify-content:center;min-height:42px;border:1px solid #777;border-radius:9px;background:#fff;font-weight:700;color:#111}
  .top-actions-panel>.audio-settings,.top-actions-panel>.appearance-settings{min-width:0}
  .top-actions-panel>.audio-settings>summary,.top-actions-panel>.appearance-settings>summary{min-height:42px;width:100%;display:flex;align-items:center;justify-content:center;padding:5px 7px}
  .appearance-summary-text{display:inline}
  .top-actions-panel>.archive-link{min-height:42px;display:flex;align-items:center;justify-content:center;border:1px solid #777;border-radius:9px;background:#fff;padding:5px 7px;text-align:center;text-decoration:none;font-size:.82rem}
  .top-actions-panel>.world{grid-column:1/-1;align-items:flex-start;padding:6px 8px;border-top:1px solid #d1d1d1;font-size:.7rem;line-height:1.35}
  .top-actions-panel>.world #status{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

  .audio-panel,.appearance-panel{top:49px;right:7px;left:7px;width:auto;max-width:none;max-height:calc(100dvh - 58px);overflow:auto;overscroll-behavior:contain}
  .audio-panel{position:fixed}
  .appearance-panel{position:fixed}

  .hud{width:calc(100% - 10px);max-width:none;left:5px;bottom:max(5px,env(safe-area-inset-bottom));transform:none;grid-template-columns:minmax(0,1fr);grid-template-areas:"tools" "drawers" "info";gap:4px;justify-items:stretch;align-items:center;padding:5px 6px;border-radius:11px;background:rgba(255,255,255,.95)}
  .tools{grid-area:tools;width:100%;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px}
  .tools button{min-width:0;min-height:42px;padding:3px 2px;font-size:.76rem;line-height:1.1;white-space:nowrap}
  .drawer-row{grid-area:drawers;width:100%;min-width:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));justify-content:stretch;gap:4px;overflow:visible}
  .drawer-row .craft-drawer,.drawer-row .object-drawer{width:100%;min-width:0}
  .craft-drawer>summary,.object-drawer>summary{width:100%;min-height:40px;justify-content:center;padding:4px 6px;white-space:nowrap;font-size:.78rem}
  .move-pad{position:fixed;right:max(10px,env(safe-area-inset-right));bottom:calc(max(8px,env(safe-area-inset-bottom)) + 118px);z-index:7;width:auto;display:grid;grid-template-columns:repeat(2,48px);gap:5px;padding:5px;border:1px solid rgba(70,70,70,.38);border-radius:16px;background:rgba(255,255,255,.22);box-shadow:0 2px 9px rgba(0,0,0,.13);justify-content:end}
  .move-pad button{min-width:48px;width:48px;min-height:48px;height:48px;padding:2px;border-color:rgba(65,65,65,.58);background:rgba(255,255,255,.72);font-size:1.14rem;text-shadow:0 1px 0 rgba(255,255,255,.85)}
  .move-pad button:nth-child(1){grid-column:2;grid-row:1}
  .move-pad button:nth-child(2){grid-column:1;grid-row:1}
  .move-pad button:nth-child(3){grid-column:1;grid-row:2}
  .move-pad button:nth-child(4){grid-column:2;grid-row:2}
  .move-pad button:active{background:rgba(220,238,250,.88)}
  .hud-info{grid-area:info;display:flex;align-items:center;gap:8px;min-width:0;padding:1px 2px;overflow:hidden}
  #inventory{grid-area:auto;flex:0 0 auto;font-size:.76rem;line-height:1.2}
  .finds{grid-area:auto;min-width:0;flex:1 1 auto;font-size:.7rem;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:right}
  #target-status{position:absolute;grid-area:auto;left:50%;bottom:calc(100% + 5px);transform:translateX(-50%);max-width:calc(100vw - 18px);min-height:0;padding:3px 7px;border:1px solid rgba(80,80,80,.55);border-radius:10px;background:rgba(255,255,255,.91);font-size:.68rem;line-height:1.25;text-align:center;white-space:normal;overflow:hidden;text-overflow:clip;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;pointer-events:none}

  .object-panel,.craft-panel{left:6px;right:6px;bottom:calc(max(5px,env(safe-area-inset-bottom)) + 116px);width:auto;max-height:min(54dvh,440px);overflow:auto;overscroll-behavior:contain;padding:7px;border-radius:12px 12px 8px 8px}
  .object-panel .object-tools{overflow-x:auto;scroll-snap-type:x proximity}
  .object-panel .object-tools button{scroll-snap-align:start;min-height:40px}
  .craft-tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
  .craft-tools button{min-width:0;min-height:42px;padding:4px 3px;font-size:.74rem;white-space:normal;line-height:1.12}
  .craft-settings{margin-top:6px;padding-top:6px}

  .social{top:auto;left:6px;right:6px;bottom:max(6px,env(safe-area-inset-bottom));width:auto;height:min(68dvh,540px);padding:8px;transform:none;border-radius:14px;z-index:29;transition:transform .18s,opacity .18s}
  .social.closed{transform:translateY(calc(100% + 14px));opacity:0;pointer-events:none}
  .social.closed #social-toggle{position:static}
  .social-head{min-height:38px}
  .social-head button{min-height:36px}
  .chat-log{min-height:72px}
  .chat-form{grid-template-columns:58px minmax(0,1fr) 48px}
  .reactions button{min-height:40px}
}

@media(max-width:390px){
  .move-pad{right:max(7px,env(safe-area-inset-right));grid-template-columns:repeat(2,46px);gap:4px;padding:4px}
  .move-pad button{min-width:46px;width:46px;min-height:46px;height:46px}
  .drawer-row{gap:3px}
  .craft-drawer>summary,.object-drawer>summary{font-size:.72rem;padding-inline:4px}
  .tools button{font-size:.71rem}
}

/* dev54-hotfix5: UX clarity without changing game mechanics. */
.help-open{min-height:36px;border:1px solid #777;border-radius:8px;background:#fff;padding:6px 9px;font-weight:700;color:#111;white-space:nowrap}
.help-open:focus-visible,.object-filters button:focus-visible{outline:3px solid #111;outline-offset:2px}
.mobile-connection-status{display:none}
.tool-icon,.tool-label{display:inline}
.craft-settings[hidden],.craft-settings [hidden],.object-tools button[hidden]{display:none!important}
.object-filters{display:flex;gap:4px;overflow-x:auto;padding:0 1px 6px;scrollbar-width:thin}
.object-filters button{flex:0 0 auto;min-height:32px;border:1px solid #888;border-radius:999px;background:#fff;padding:3px 9px;color:#222;font-size:.72rem;font-weight:700}
.object-filters button.selected{border-color:#174f7a;background:#e7f1ff;color:#0e4168}
.object-button-label{display:block;line-height:1.15}
.object-need{display:block;margin-top:2px;color:#8a3a21;font-size:.62rem;line-height:1.15;font-weight:650;white-space:normal}
.object-tools button:disabled{opacity:.68;cursor:not-allowed}
.appearance-name{grid-column:1/-1;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:6px;padding-top:7px;border-top:1px solid #ddd}
.appearance-name label{font-size:.76rem;font-weight:700}
.appearance-name input{min-width:0;border:1px solid #888;border-radius:7px;padding:6px}
.appearance-name button{min-height:36px}
.help-card{width:min(520px,100%);max-height:calc(100dvh - 40px);overflow:auto;overscroll-behavior:contain}
.help-steps{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.help-steps li{display:grid;grid-template-columns:92px minmax(0,1fr);gap:8px;align-items:start;padding:8px;border:1px solid #ddd;border-radius:10px;background:#fbfcfc}
.help-steps strong{white-space:nowrap}.help-steps span{color:#333;line-height:1.4}.help-pc{font-size:.8rem!important;color:#555!important;line-height:1.4}
.social{grid-template-rows:auto 1fr auto auto auto}
.mobile-social-open{position:relative}
.mobile-social-open.has-unread::after{content:"";position:absolute;right:7px;top:6px;width:8px;height:8px;border:2px solid #fff;border-radius:50%;background:#c83d30}

@media(max-width:680px){
  .help-open{display:flex;align-items:center;justify-content:center;min-height:42px;border-radius:9px;padding:5px 7px;font-size:.82rem}
  .mobile-connection-status:not([hidden]){display:block;position:fixed;top:49px;left:50%;transform:translateX(-50%);z-index:28;max-width:calc(100vw - 24px);padding:4px 9px;border:1px solid rgba(70,70,70,.5);border-radius:999px;background:rgba(255,255,255,.96);box-shadow:0 2px 8px rgba(0,0,0,.15);font-size:.72rem;font-weight:750;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;pointer-events:none}
  .mobile-connection-status[data-kind="reconnecting"],.mobile-connection-status[data-kind="connecting"],.mobile-connection-status[data-kind="rollover"]{background:rgba(255,248,218,.97)}
  .mobile-connection-status[data-kind="offline"],.mobile-connection-status[data-kind="error"]{background:rgba(255,229,225,.98);border-color:#a9483f;color:#6e201a}
  .tools button{display:grid;grid-template-rows:auto auto;place-items:center;align-content:center;min-height:48px;padding:3px 1px;line-height:1}
  .tools .tool-icon{display:block;font-size:1.13rem;line-height:1}
  .tools .tool-label{display:block;margin-top:2px;font-size:.76rem;line-height:1.05;white-space:nowrap}
  .object-filters{padding-bottom:5px}
  .object-filters button{min-height:36px;padding:4px 10px;font-size:.72rem}
  .object-panel .object-tools button{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:48px}
  .object-need{font-size:.64rem}
  .appearance-name{grid-template-columns:42px minmax(0,1fr) auto;gap:5px}
  .appearance-name button{min-height:42px}
  .help-card{max-height:calc(100dvh - 28px);overflow:auto;padding:17px}
  .help-steps li{grid-template-columns:1fr;gap:3px}
  .help-pc{font-size:.72rem!important}
}
@media(max-width:390px){
  .tools .tool-label{font-size:.73rem}
  .tools .tool-icon{font-size:1.08rem}
}
@media(max-width:680px){
  .mobile-menu-toggle{position:relative}
  .mobile-menu-toggle.has-unread::after{content:"";position:absolute;right:4px;top:3px;width:8px;height:8px;border:2px solid #fff;border-radius:50%;background:#c83d30}
  .move-pad{bottom:calc(max(8px,env(safe-area-inset-bottom)) + 124px)}
  .object-panel,.craft-panel{bottom:calc(max(5px,env(safe-area-inset-bottom)) + 122px)}
}

/* dev54-hotfix9: touch-first aiming/execution and clearer prerequisites. */
.action-execute{display:none}
.craft-settings-lead{display:block;margin:0 0 6px;color:#444;font-size:.7rem;line-height:1.3;font-weight:650}
.object-prereq{display:block;margin-top:2px;color:#6e4d1f;font-size:.62rem;line-height:1.15;font-weight:650;white-space:normal}
@media(max-width:680px){
  .action-execute{display:flex;position:fixed;left:max(10px,env(safe-area-inset-left));bottom:calc(max(8px,env(safe-area-inset-bottom)) + 128px);z-index:8;align-items:center;justify-content:center;min-width:124px;max-width:calc(100vw - 132px);min-height:54px;padding:7px 12px;border:2px solid #174f7a;border-radius:14px;background:rgba(232,244,255,.96);box-shadow:0 3px 12px rgba(0,0,0,.18);color:#0d3d62;font-weight:850;line-height:1.15;text-align:center;touch-action:manipulation}
  .action-execute:disabled{border-color:#777;background:rgba(255,255,255,.78);color:#666;opacity:.88}
  .action-execute:not(:disabled):active{transform:translateY(1px);background:#d7ecff}
  .object-prereq{font-size:.64rem}
  .craft-settings-lead{font-size:.68rem;margin-bottom:5px}
  .craft-settings{margin-top:0;padding-top:0;border-top:0;margin-bottom:6px;padding-bottom:6px;border-bottom:1px solid #c9c9c9}
  .craft-tools{margin-top:4px}
}
@media(max-width:390px){
  .action-execute{left:max(7px,env(safe-area-inset-left));min-width:116px;max-width:calc(100vw - 118px);font-size:.82rem;padding-inline:8px}
}

/* dev54-hotfix10: repeatable action button and one-tap mobile chat shortcut. */
@media(max-width:680px){.action-execute:not(:disabled){user-select:none;-webkit-user-select:none}.mobile-chat-shortcut{flex:0 0 40px}.chat-range-note{font-size:.66rem}}

/* dev54-hotfix13: pause gameplay controls while authoritative connection is unavailable. */
.hud.connection-paused{opacity:.68;filter:saturate(.72)}
.hud.connection-paused::after{content:"再接続しています…";position:absolute;left:50%;top:-28px;transform:translateX(-50%);padding:3px 8px;border:1px solid #9a6b25;border-radius:999px;background:rgba(255,248,218,.97);color:#5b4118;font-size:.7rem;font-weight:750;white-space:nowrap;pointer-events:none}

.join-mode-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.join-mode-buttons button:first-child{background:#8b5a24}.join-mode-note{display:block;line-height:1.45}.solo-mode .social,.solo-mode #mobile-chat-shortcut,.solo-mode #mobile-social-open,.solo-mode .archive-link{display:none!important}.solo-mode .hud{max-width:min(850px,calc(100% - 20px))}@media(max-width:520px){.join-mode-buttons{grid-template-columns:1fr}}

.legal-link{color:#174f7a;font-weight:650;text-decoration:none;white-space:nowrap}@media(max-width:680px){.top-actions-panel>.legal-link{min-height:42px;display:flex;align-items:center;justify-content:center;border:1px solid #777;border-radius:9px;background:#fff;padding:5px 7px;text-align:center;text-decoration:none;font-size:.82rem}}