:root{--paper:#f3ecdc;--paper2:#fbf7ee;--ink:#2a2420;--sub:#857a6b;--line:#c4b8a2;--shu:#c0392b;--shu-t:#f6e1d9;--ai:#1f5f8b;--ai-t:#e3ecf2}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:#e4dac4;color:var(--ink);font-family:"Klee One",serif;-webkit-tap-highlight-color:transparent}
.shell-stage{background:var(--paper);box-shadow:0 0 0 1px #cfc3ab;font-family:"Klee One",serif;user-select:none;-webkit-user-select:none}
button{font-family:inherit;color:inherit}
p{margin:0}

/* ボタン */
.btn{font:600 22px/1.2 "Klee One",serif;padding:12px 22px;border:2px solid var(--ink);background:var(--ink);color:var(--paper);border-radius:2px;cursor:pointer;letter-spacing:.06em}
.btn:hover{background:#3d342e}
.btn.sub{background:transparent;color:var(--ink)}
.btn.sub:hover{background:var(--paper2)}
.btn.mini{font-size:16px;padding:6px 14px;background:transparent;color:var(--ink);border-width:1.5px}
.btn.off{opacity:.35;cursor:default}
.shell-share button{font:600 17px "Klee One",serif;border:1.5px solid var(--ink);border-radius:2px;padding:6px 14px;color:var(--ink);background:var(--paper2)}
.shell-share button:hover{background:#fff}
.shell-share .shell-done{font-size:15px;color:var(--sub)}

/* 札 */
.tiles{display:flex;gap:5px}
.tile{--t:48px;width:var(--t);height:var(--t);border:1.5px solid var(--ink);background:var(--paper2);display:grid;place-items:center;font-size:calc(var(--t)*.6);line-height:1;position:relative;flex:none}
.tile:empty::before{content:"○";color:var(--line);font-size:.55em}
.tile.mine{color:var(--ai);background:var(--ai-t);border-color:var(--ai);font-weight:600}
.tile.seal{background:var(--shu-t);border-color:var(--shu)}
.tile.seal::before{content:"☆";color:var(--shu);font-size:.5em;width:66%;height:66%;border:2.5px solid var(--shu);border-radius:50%;display:grid;place-items:center}
.tile.open.had{color:var(--ai);font-weight:600}
.sealmini{display:inline-block;width:1.1em;height:1.1em;border:2px solid var(--shu);border-radius:50%;background:var(--shu-t);vertical-align:-.15em;margin:0 .2em}

/* はんこ */
.stamp{position:absolute;right:4%;bottom:20%;transform:rotate(-14deg);border:3px solid var(--shu);color:var(--shu);background:rgba(251,247,238,.85);padding:2px 10px;font:600 28px/1.2 "Klee One",serif;letter-spacing:.1em}
.stamp.sm{position:relative;right:auto;bottom:auto;font-size:16px;padding:1px 7px;border-width:2px;transform:rotate(-8deg);display:inline-block;flex:none}
.stamp.biri{background:var(--shu);color:var(--paper)}

/* 画面共通 */
.scr{position:absolute;inset:0}
.scr.panel{inset:auto;left:50%;top:50%;transform:translate(-50%,-50%);width:640px;display:flex;flex-direction:column;gap:16px}
.scr.panel.center{align-items:center;text-align:center}
.scr.panel h2{font-size:36px;margin:0;font-weight:600;border-bottom:2px solid var(--ink);padding-bottom:6px;align-self:stretch}
.scr.panel h3{font-size:22px;margin:4px 0 0}
.note{font-size:17px;color:var(--sub);line-height:1.6}
.big{font-size:24px;line-height:1.6}
.msg{font-size:19px;color:var(--shu);min-height:1.4em}
.foot{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px;align-items:center}
.line{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.inp{font:600 26px "Klee One",serif;padding:10px 12px;border:2px solid var(--ink);background:var(--paper2);color:var(--ink);border-radius:0;min-width:0;flex:1;user-select:text;-webkit-user-select:text}
.inp.code{letter-spacing:.2em;text-transform:uppercase}
.inp:focus{outline:3px solid var(--shu-t)}
.field{display:flex;flex-direction:column;gap:8px}
.flab{font-size:18px;color:var(--sub)}
.seg,.tabs{display:flex}
.seg button,.tabs button{font:600 20px "Klee One",serif;padding:10px 18px;border:1.5px solid var(--ink);background:var(--paper2);cursor:pointer;margin-right:-1.5px}
.seg button.on,.tabs button.on{background:var(--ink);color:var(--paper)}
.tabs button{flex:1}

/* タイトル */
.title h1{font-size:92px;margin:0;font-weight:600;letter-spacing:.08em;line-height:1.1}
.title .lead{font-size:24px;color:var(--sub);margin:4px 0 22px}
.hero,.menu{position:absolute}
.demo{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);padding:14px 0}
.drow{display:flex;align-items:center;gap:16px}
.drow .tile{--t:52px}
.dn{width:80px;font-size:20px}
.how{margin:0;padding-left:1.4em;font-size:19px;line-height:1.75}
.how b{color:var(--sub)}
.how b.ai{color:var(--ai)}
.menu{display:flex;flex-direction:column;gap:14px}
.menu .btn{font-size:26px;padding:16px}
.row2{display:flex;gap:12px}
.row2 .btn{flex:1;font-size:18px;padding:8px}
.cnt{font-size:17px;color:var(--sub);text-align:center}
.land .hero{left:64px;top:56px;width:580px}
.land .menu{left:700px;top:180px;width:320px}
.port .hero{left:56px;top:70px;width:608px}
.port .menu{left:150px;top:720px;width:420px}

/* 記録・部屋 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.stat{border:1.5px solid var(--ink);background:var(--paper2);padding:10px;display:flex;flex-direction:column;gap:4px}
.stat span{font-size:15px;color:var(--sub)}
.stat b{font-size:28px}
.hist{list-style:none;margin:0;padding:0;font-size:18px;max-height:260px;overflow:auto}
.hist li{display:flex;gap:14px;padding:5px 0;border-bottom:1px dashed var(--line)}
.hist b{width:54px;color:var(--shu)}
.hist .hw{flex:1;font-weight:600}
.hist .hg{color:var(--sub)}
.code{font-size:80px;letter-spacing:.18em;font-weight:600;text-align:center;line-height:1}
.members{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.members li{border:1.5px solid var(--ink);background:var(--paper2);padding:10px 12px;font-size:22px;display:flex;gap:8px;align-items:center}
.members li.empty{border-style:dashed;color:var(--line);background:transparent}
.members small{font-size:13px;border:1px solid var(--shu);color:var(--shu);padding:0 4px}
.spin{display:flex;gap:8px}
.spin .tile{--t:60px;animation:bob 1.2s ease-in-out infinite}
.spin .tile:nth-child(2){animation-delay:.15s}
.spin .tile:nth-child(3){animation-delay:.3s}
@keyframes bob{50%{transform:translateY(-10px)}}

/* 遊ぶ画面 */
.top{position:absolute;left:0;top:0;right:0;height:64px;display:flex;align-items:center;gap:18px;padding:0 20px;border-bottom:2px solid var(--ink)}
.odai{display:flex;align-items:baseline;gap:10px;white-space:nowrap}
.odai .lab{font-size:15px;background:var(--shu);color:var(--paper);padding:2px 6px;align-self:center}
.odai b{font-size:28px}
.odai .len{font-size:18px;color:var(--sub)}
.turn{flex:1;text-align:center;font-size:24px;white-space:nowrap}
.myturn .turn{color:var(--shu);font-weight:600}
.timer{font-size:17px;color:var(--sub);white-space:nowrap}
.timer.low{color:var(--shu);font-weight:600}

.boards{position:absolute;display:flex;flex-direction:column;justify-content:center}
.brow{display:flex;align-items:center;gap:10px;padding:6px 8px;border-bottom:1px dashed var(--line);position:relative}
.brow:last-child{border-bottom:0}
.brow.cur{background:linear-gradient(90deg,var(--shu-t),transparent)}
.brow.cur .bn::before{content:"▶";color:var(--shu);font-size:.7em;position:absolute;left:-4px}
.brow.away{opacity:.45}
.brow .tiles{gap:4px}
.bn{width:92px;padding-left:12px;flex:none;display:flex;flex-direction:column;gap:2px}
.bname{font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brow.me .bname{color:var(--ai);font-weight:600}
.bh{font-size:14px;color:var(--sub);white-space:nowrap;display:flex;gap:8px;align-items:center}
.brow .tile{--t:42px}

.drop{position:absolute;border-radius:50%;background:var(--paper2);border:3px solid var(--shu);display:grid;place-items:center;cursor:default}
.drop .ring{position:absolute;inset:9px;border:1.5px solid var(--shu);border-radius:50%;opacity:.6;pointer-events:none}
.dbig{font-size:132px;line-height:1;font-weight:600}
.drop.pend .dbig{color:rgba(42,36,32,.4)}
.drop.mine .dbig{color:var(--ai)}
.drop.other .dbig{color:var(--shu)}
.drop.miss .dbig{color:var(--sub)}
.drop.ng .dbig,.drop.fin .dbig{font-size:96px}
.drop.pend{cursor:pointer}
.drop.over{background:var(--shu-t);transform:scale(1.04)}
.dcap{position:absolute;top:calc(100% + 10px);left:-30%;width:160%;text-align:center;font-size:18px;color:var(--sub)}
.myturn .drop{animation:pulse 1.8s ease-in-out infinite}
.myturn .drop .dcap{color:var(--shu)}
.drop.anim .dbig{animation:drop-in .3s cubic-bezier(.2,1.4,.5,1)}
.drop.anim .stamp{animation:stamp .32s .15s both}
@keyframes pulse{50%{box-shadow:0 0 0 10px rgba(192,57,43,.12)}}
@keyframes drop-in{from{transform:scale(1.5);opacity:0}}
@keyframes stamp{from{transform:rotate(-14deg) scale(2.2);opacity:0}}

.anspanel{position:absolute;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;border:3px double var(--shu);background:var(--paper2);padding:14px}
.anspanel.over{background:var(--shu-t)}
.anspanel .dcap{position:static;width:auto}
.aslots .tile{--t:44px;cursor:pointer}
.aslot.fill{border-color:var(--shu);color:var(--ink)}
.aslot.lock{cursor:default}
.anspanel .btn{font-size:18px;padding:8px 14px}

.side{position:absolute;display:flex;flex-direction:column;gap:12px}
.side .msg{font-size:17px}
.ansbtn{font-size:24px}
.log{list-style:none;margin:0;padding:0 0 0 12px;border-left:2px solid var(--line);font-size:16px;line-height:1.75;color:var(--sub);overflow:hidden}
.log li:first-child{color:var(--ink)}

.table{position:absolute;display:flex;direction:rtl;gap:14px}
.kblock{display:grid;grid-auto-flow:column;grid-template-rows:repeat(5,1fr);grid-template-columns:repeat(var(--cols),1fr);gap:4px;direction:rtl}
.kblock.main{flex:10}
.kblock.sub{flex:7}
.k{display:grid;place-items:center;background:var(--paper2);border:1px solid var(--line);font-size:30px;line-height:1;touch-action:none;transition:background .15s}
.game:not(.myturn) .k{color:#6d6357}
.k.can{cursor:grab}
.k.can:hover{border-color:var(--ink);background:#fff}
.k.gone{background:transparent;border:1px dashed #d8cdb7;color:transparent}
.k.mine{color:var(--ai);background:var(--ai-t);border-color:#9db6c9;font-weight:600}
.k.pend{background:var(--shu-t);border-color:var(--shu)}
.k.lift{opacity:.3}
.k.blank{visibility:hidden}
.ghost{position:absolute;left:0;top:0;width:80px;height:80px;display:grid;place-items:center;font-size:54px;font-weight:600;background:var(--paper2);border:2px solid var(--ink);box-shadow:0 10px 22px rgba(42,36,32,.28);pointer-events:none;z-index:50;font-family:"Klee One",serif}

.intro{position:absolute;inset:0;background:rgba(243,236,220,.95);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;z-index:20;animation:fade .3s;cursor:pointer}
.intro .lab{font-size:20px;background:var(--shu);color:var(--paper);padding:2px 10px}
.intro .genre{font-size:88px;font-weight:600;letter-spacing:.08em}
.intro .tile{--t:68px}
.intro .len{font-size:24px;color:var(--sub)}
@keyframes fade{from{opacity:0}}

.result{position:absolute;z-index:30;background:var(--paper);border:2px solid var(--ink);box-shadow:10px 10px 0 rgba(42,36,32,.16);padding:26px 30px;display:flex;flex-direction:column;align-items:center;gap:16px;animation:fade .3s}
.result .lab{font-size:20px;color:var(--sub)}
.tiles.big .tile{--t:72px}
.ranks{list-style:none;margin:0;padding:0;align-self:stretch;display:flex;flex-direction:column;gap:6px}
.ranks li{display:flex;align-items:center;gap:16px;font-size:24px;padding:6px 10px;border-bottom:1px dashed var(--line)}
.ranks li.me{background:var(--ai-t)}
.ranks .stamp{font-size:18px;width:70px;text-align:center}
.ranks .rn{flex:1}
.ranks .rh{font-size:17px;color:var(--sub)}
.sharebox{display:flex;justify-content:center}

/* 横の枠 1080×720 */
.land .boards{left:12px;top:78px;width:392px;height:350px}
.land .drop{left:410px;top:112px;width:260px;height:260px}
.land .anspanel{left:396px;top:96px;width:288px;height:300px}
.land .side{left:700px;top:84px;width:360px;height:340px}
.land .table{left:16px;top:446px;width:1048px;height:262px}
.land .result{left:190px;top:60px;width:700px;max-height:610px}

/* 縦の枠 720×1080 */
.port .top{gap:10px;padding:0 14px}
.port .odai b{font-size:24px}
.port .turn{font-size:21px}
.port .boards{left:14px;top:74px;width:692px;height:240px}
.port .brow{padding:4px 8px}
.port .brow .tile{--t:42px}
.port .drop{left:250px;top:330px;width:220px;height:220px}
.port .dbig{font-size:110px}
.port .drop.ng .dbig,.port .drop.fin .dbig{font-size:80px}
.port .dcap{font-size:16px}
.port .anspanel{left:140px;top:322px;width:440px;height:240px}
.port .side{left:14px;top:330px;width:226px;height:226px}
.port .side .ansbtn{position:absolute;left:476px;top:70px;width:216px}
.port .table{left:14px;top:604px;width:692px;height:466px;flex-direction:column;gap:10px}
.port .kblock{flex:1}
.port .kblock.sub{width:70%;align-self:flex-start}
.port .k{font-size:28px}
.port .result{left:30px;top:150px;width:660px;max-height:800px}
.port .scr.panel{width:620px}
.port .stats{grid-template-columns:repeat(2,1fr)}