/* iNET Tech Office 3D — lớp giao diện "kính mờ" công nghệ + màn phối đồ + bảng mật thư (nạp sau cùng) */

:root{ --glass: rgba(255,255,255,.72); --glass-dark: rgba(13,22,36,.62); --glass-line: rgba(255,255,255,.55); }
.stage.mode3d, .stage.mode3d #world{ background:#dce7f2 }

/* Kính mờ cho các bảng nổi trên cảnh 3D */
.stage.mode3d .hud>div{ background:var(--glass-dark); backdrop-filter:blur(12px) saturate(1.2); -webkit-backdrop-filter:blur(12px); box-shadow:inset 0 0 0 1px rgba(255,255,255,.18),0 8px 24px rgba(13,22,36,.25) }
.stage.mode3d .phase,.stage.mode3d .online{ background:var(--glass-dark); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px) }
.stage.mode3d .panel,.stage.mode3d .chips,.stage.mode3d .ticker{ background:var(--glass); backdrop-filter:blur(14px) saturate(1.3); -webkit-backdrop-filter:blur(14px); border:1px solid var(--glass-line) }
.stage.mode3d .chip{ background:rgba(255,255,255,.7) }
.stage.mode3d .chip.done{ background:var(--c, var(--ok)) }
.stage.mode3d .mini{ border-color:rgba(255,255,255,.9) }
.stage.mode3d .emotes button,.stage.mode3d .emobtn{ background:var(--glass); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px) }

/* Màn vào văn phòng: phối đồ */
.card.join3d{ max-width:620px }
.stage.wide .overlay.sheet .card.join3d{ max-width:640px }
.cz{ display:grid; grid-template-columns:200px 1fr; gap:12px; margin:8px 0 4px; align-items:start }
.cz-preview{ position:relative; height:250px; border-radius:var(--r-lg); background:radial-gradient(circle at 50% 35%,#ffffff,#dfeaf6 70%); border:1px solid var(--n200); overflow:hidden }
.cz-preview canvas{ width:100%; height:100%; display:block }
.cz-no3d{ display:none; position:absolute; inset:0; place-items:center; text-align:center; font-size:12px; color:var(--n600); padding:12px }
.cz-preview.no3d canvas{ display:none } .cz-preview.no3d .cz-no3d{ display:grid }
.cz-opts{ display:grid; gap:7px }
.cz-row{ display:grid; grid-template-columns:72px 1fr; gap:6px; align-items:center }
.cz-row>span{ font-size:12px; font-weight:800; color:var(--n600) }
.cz-row>div{ display:flex; flex-wrap:wrap; gap:5px }
.cz .sw{ width:28px; height:28px; border-radius:50%; border:3px solid #fff; background:var(--c); box-shadow:0 0 0 1px var(--n200); cursor:pointer; padding:0 }
.cz .sw.on{ box-shadow:0 0 0 3px var(--blue-500) }
.cz .ch{ border:1.5px solid var(--n200); background:#fff; color:var(--ink); border-radius:99px; padding:5px 10px; font:700 12px var(--font); cursor:pointer; min-height:30px }
.cz .ch.on{ background:var(--blue); border-color:var(--blue); color:#fff }
.cz .ch.dice{ border-style:dashed }
@media (max-width:520px){
  .cz{ grid-template-columns:1fr } .cz-preview{ height:190px }
  .cz-row{ grid-template-columns:62px 1fr } .cz .sw{ width:26px; height:26px }
}

/* Bảng mật thư (terminal) */
.puzzle{ position:absolute; z-index:55; right:14px; bottom:96px; width:min(420px, calc(100% - 28px)); border-radius:18px; overflow:hidden;
  background:rgba(8,14,24,.9); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); color:#e6f0ff;
  box-shadow:0 0 0 1px rgba(95,179,255,.35),0 18px 48px rgba(0,0,0,.45); font-family:var(--font) }
.stage:not(.wide) .puzzle{ left:8px; right:8px; width:auto; bottom:84px; max-height:58%; overflow:auto }
.pz-head{ display:flex; align-items:center; gap:8px; padding:10px 12px 8px; background:linear-gradient(90deg,rgba(2,71,153,.65),rgba(5,130,212,.25)) }
.pz-head b{ flex:1; font-size:14px; font-weight:900; letter-spacing:.02em }
.pz-badge{ font-size:11px; font-weight:800; padding:3px 8px; border-radius:99px; background:#0E9F6E; color:#fff; white-space:nowrap }
.pz-badge.t2{ background:#D47B0A } .pz-badge.t3{ background:#cc0e0e }
.pz-min{ width:32px; height:32px; border-radius:8px; border:0; background:rgba(255,255,255,.12); color:#fff; font:900 18px var(--font); cursor:pointer }
.pz-timer{ height:5px; background:rgba(255,255,255,.12) } .pz-timer i{ display:block; height:100%; background:linear-gradient(90deg,#34d399,#5fb3ff); transform-origin:left; transition:transform .2s linear }
.puzzle.urgent .pz-timer i{ background:#ff6b64 }
.pz-body{ padding:12px }
.puzzle.min .pz-body{ display:none }
.pz-q{ margin:0 0 10px; white-space:pre-wrap; word-break:break-word; font:500 15px/1.5 'JetBrains Mono', monospace; color:#a8f0c6;
  background:rgba(0,0,0,.35); border:1px dashed rgba(52,211,153,.4); border-radius:10px; padding:10px 12px }
.pz-clues{ list-style:none; margin:0 0 10px; padding:0; display:grid; gap:6px }
.pz-clues li{ background:rgba(255,207,58,.12); border:1px solid rgba(255,207,58,.35); border-radius:10px; padding:7px 10px; font-size:12.5px; display:grid; gap:2px }
.pz-clues li span{ font-weight:800; color:#ffe27a } .pz-clues li em{ color:#c7d3e3; font-style:normal }
.pz-clues li.ok{ background:rgba(52,211,153,.14); border-color:rgba(52,211,153,.45) } .pz-clues li.ok span{ color:#34d399 } .pz-clues li.ok b{ color:#fff; font-weight:700 }
.pz-hints p{ margin:0 0 6px; font-size:12.5px; color:#ffe9a6 }
.pz-form{ display:flex; gap:8px }
.pz-in{ flex:1; min-width:0; min-height:46px; border-radius:10px; border:2px solid rgba(95,179,255,.5); background:rgba(0,0,0,.4); color:#fff;
  font:700 17px 'JetBrains Mono', monospace; padding:0 12px; text-transform:uppercase; letter-spacing:.06em }
.pz-in:focus{ outline:none; border-color:#5fb3ff; box-shadow:0 0 0 3px rgba(95,179,255,.25) }
.pz-go{ min-height:46px; border:0; border-radius:10px; padding:0 16px; background:#0582D4; color:#fff; font:800 14px var(--font); cursor:pointer }
.pz-go:disabled{ opacity:.5 }
.pz-meta{ margin:8px 0 0; font-size:11.5px; color:#9fb3c8 }
.puzzle.shake{ animation:shake .4s }
.pz-win{ text-align:center } .pz-ok{ font-size:17px; font-weight:900; color:#34d399; margin:4px 0 10px } .pz-fail{ font-size:17px; font-weight:900; color:#ff8a84; margin:4px 0 8px }
.pz-code{ display:flex; gap:8px; justify-content:center; margin-bottom:6px }
.pz-code code{ font:700 18px 'JetBrains Mono', monospace; background:#fff; color:var(--blue); border-radius:10px; padding:10px 14px; user-select:all; -webkit-user-select:all }
.pz-cond{ font-size:12px; color:#c7d3e3; margin:0 0 10px }
.puzzle.win{ box-shadow:0 0 0 2px #34d399,0 18px 48px rgba(0,0,0,.45) }
@media (prefers-reduced-motion:reduce){ .puzzle.shake{ animation:none } }

/* Chat văn phòng */
.chat{ position:absolute; z-index:34; left:14px; bottom:92px; width:min(330px, 30%); height:250px; display:flex; flex-direction:column;
  border-radius:16px; overflow:hidden; background:var(--glass); backdrop-filter:blur(14px) saturate(1.3); -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-line); box-shadow:0 10px 28px rgba(13,22,36,.25); opacity:0; pointer-events:none; transition:opacity .3s }
.stage.joined .chat{ opacity:1; pointer-events:auto }
.chat-head{ display:flex; align-items:center; gap:8px; padding:7px 10px; background:rgba(2,71,153,.9); color:#fff; font-size:12.5px }
.chat-head b{ flex:1 } .chat-head span{ font-size:11px; opacity:.85 }
.chat-x{ display:none; border:0; background:none; color:#fff; font-size:22px; line-height:1; cursor:pointer; width:32px; height:32px }
.chat-log{ flex:1; overflow-y:auto; margin:0; padding:6px 8px; list-style:none; font-size:13px; line-height:1.4 }
.chat-log li{ padding:3px 2px; word-break:break-word; position:relative; padding-right:22px }
.chat-log li time{ font-size:10.5px; color:var(--n600); margin-right:4px }
.chat-log li b{ color:var(--blue); margin-right:4px } .chat-log li b::after{ content:':' }
.chat-log li.me b{ color:#a86a00 }
.chat-log li.hidden span{ color:var(--n600); font-style:italic }
.chat-log li.sys{ color:var(--n600); font-size:12px; font-style:italic; padding-right:0 } .chat-log li.sys.warn{ color:var(--red); font-style:normal; font-weight:700 }
.chat-log .rep{ position:absolute; right:0; top:2px; border:0; background:none; color:#9aa5b4; cursor:pointer; font-size:13px; width:22px; height:22px; opacity:0 }
.chat-log li:hover .rep,.chat-log .rep:focus{ opacity:1 }
.chat-form{ display:flex; gap:6px; padding:6px; border-top:1px solid rgba(15,30,45,.1) }
.chat-form input{ flex:1; min-width:0; min-height:38px; border-radius:10px; border:1.5px solid var(--n200); padding:0 10px; font:600 13.5px var(--font); background:rgba(255,255,255,.9) }
.chat-form input:focus{ outline:none; border-color:var(--blue-500) }
.chat-form button{ border:0; border-radius:10px; padding:0 12px; background:var(--blue); color:#fff; font:800 13px var(--font); cursor:pointer }
.chatbtn{ position:absolute; z-index:33; right:12px; bottom:148px; width:52px; height:52px; border-radius:50%; border:0; background:#fff; font-size:24px;
  box-shadow:0 6px 16px rgba(0,0,0,.3); cursor:pointer; display:none }
.chatbtn .badge{ position:absolute; right:-2px; top:-2px; min-width:20px; height:20px; border-radius:10px; background:var(--red); color:#fff; font:800 11px/20px var(--font); padding:0 5px }
.stage:not(.wide).joined .chatbtn{ display:block }
.stage:not(.wide) .chat{ display:none; left:8px; right:8px; width:auto; bottom:84px; height:46% }
.stage:not(.wide) .chat.open{ display:flex }
.stage:not(.wide) .chat-x{ display:block }
.stage:not(.wide) .chat-log .rep{ opacity:1 }