*{margin:0;padding:0;box-sizing:border-box}
:root{
--bg:#05081a;
--surface:#0c1226;
--surface-2:#111b36;
--text:#e8ecf8;--muted:#8892b0;
--blue:#5b86d9;--blue-rgb:91,134,217;
--blue-deep:#3d62a2;
--opp:#dfe7f8;--opp-rgb:223,231,248;
--emph:#ffffff;--emph-rgb:255,255,255;
--emph-ink:#0b1220;
--die-bg:#fff;--die-dot:#1a1a2e;--radius:12px;
--border:rgba(148,166,220,.14);--border-strong:rgba(148,166,220,.34);
--shadow-sm:0 2px 10px rgba(2,6,20,.3);
--shadow-md:0 8px 24px rgba(2,6,20,.35);
--shadow-lg:0 20px 50px rgba(2,6,20,.5);
--ease-spring:cubic-bezier(.34,1.35,.6,1);
}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:20px 20px 48px;overflow-x:hidden;position:relative}
body::before{content:'';position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(ellipse 70% 50% at 50% 0%,rgba(var(--blue-rgb),.08),transparent 70%)}
::selection{background:rgba(var(--blue-rgb),.35);color:#fff}
button:focus-visible,input:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
input[type=checkbox]{accent-color:var(--blue);cursor:pointer}
.game-container,.gameover-banner{position:relative;z-index:1}
h1{font-size:2rem;letter-spacing:6px;margin-bottom:12px;color:var(--text);font-weight:800}
.subtitle{color:var(--muted);margin-bottom:28px;font-size:.85rem}
.page-footer{margin-top:16px;text-align:center;font-size:.75rem;color:var(--muted);letter-spacing:.3px}
.game-container{max-width:900px;width:100%;display:flex;flex-direction:column;gap:16px}
/* Phase indicator */
.phase-bar{display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:var(--radius);background:var(--surface);font-size:1.05rem;font-weight:700;letter-spacing:1.5px;border:1px solid var(--border);box-shadow:var(--shadow-md)}
.phase-bar::before{content:'';width:11px;height:11px;border-radius:50%;background:var(--muted);flex-shrink:0;transition:background .25s,box-shadow .25s}
.phase-bar.human{background:linear-gradient(100deg,rgba(var(--blue-rgb),.25),rgba(var(--blue-rgb),.06) 70%,transparent);border-color:rgba(var(--blue-rgb),.9);color:#fff;box-shadow:0 0 0 1px rgba(var(--blue-rgb),.25),0 0 24px rgba(var(--blue-rgb),.3),var(--shadow-md)}
.phase-bar.human::before{background:var(--blue);box-shadow:0 0 10px rgba(var(--blue-rgb),.9);animation:dotPulse 1.6s ease-in-out infinite}
.phase-bar.cpu{background:linear-gradient(100deg,rgba(var(--blue-rgb),.2),rgba(var(--blue-rgb),.05) 70%,transparent);border-color:rgba(var(--blue-rgb),.85);color:#fff;box-shadow:0 0 0 1px rgba(var(--blue-rgb),.2),0 0 24px rgba(var(--blue-rgb),.25),var(--shadow-md);animation:pulse 1.6s infinite}
.phase-bar.cpu::before{background:var(--blue);box-shadow:0 0 10px rgba(var(--blue-rgb),.9)}
.phase-bar.p2{background:linear-gradient(100deg,rgba(var(--blue-rgb),.25),rgba(var(--blue-rgb),.06) 70%,transparent);border-color:rgba(var(--blue-rgb),.9);color:#fff;box-shadow:0 0 0 1px rgba(var(--blue-rgb),.25),0 0 24px rgba(var(--blue-rgb),.3),var(--shadow-md)}
.phase-bar.p2::before{background:var(--blue);box-shadow:0 0 10px rgba(var(--blue-rgb),.9);animation:dotPulse 1.6s ease-in-out infinite}
.phase-bar.gameover{border-color:rgba(var(--emph-rgb),.8);font-size:1.2rem}
.phase-toggle{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:500;letter-spacing:0;color:var(--muted);cursor:pointer;user-select:none;white-space:nowrap}
.phase-toggle input{width:14px;height:14px}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.65}}
@keyframes dotPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.75);opacity:.6}}
/* Dice area */
.dice-area{display:flex;justify-content:center;gap:16px;padding:36px 24px;background:radial-gradient(ellipse 120% 90% at 50% 18%,rgba(var(--blue-rgb),.10),transparent 60%),#0a1224;border:1px solid var(--border);border-radius:var(--radius);min-height:150px;align-items:center;position:relative;overflow:hidden}
/* Rolls-remaining pips */
.roll-pips{position:absolute;top:10px;left:50%;transform:translateX(-50%);display:flex;gap:7px;z-index:3}
.roll-pips .pip{width:10px;height:10px;border-radius:50%;background:rgba(var(--blue-rgb),.9);box-shadow:0 0 8px rgba(var(--blue-rgb),.45);transition:background .35s,box-shadow .35s,transform .35s}
.roll-pips .pip.used{background:rgba(148,166,220,.18);box-shadow:none;transform:scale(.8)}
.roll-pips.score .pip{background:rgba(var(--emph-rgb),.85);box-shadow:0 0 8px rgba(var(--emph-rgb),.4)}
.roll-pips.score .pip.used{background:rgba(148,166,220,.18);box-shadow:none;transform:scale(.8)}
/* 3D dice: slot (perspective) > cube (preserve-3d) > 6 faces */
.die3d-slot{--half:40px;position:relative;width:80px;height:80px;perspective:700px;cursor:pointer;transition:transform .2s var(--ease-spring)}
.die3d-slot:not(.empty):hover{transform:translateY(-4px)}
.die3d-slot.empty{cursor:default}
.die3d{width:100%;height:100%;position:relative;transform-style:preserve-3d}
.face{position:absolute;inset:0;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);padding:11px;background:radial-gradient(circle at 32% 28%,#ffffff,#eef0f6 55%,#d8dae8 100%);border-radius:12px;border:1px solid rgba(26,26,46,.2);backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.9),inset 0 -2px 5px rgba(110,115,150,.22)}
.f1{transform:rotateY(0deg) translateZ(var(--half))}
.f2{transform:rotateY(90deg) translateZ(var(--half))}
.f3{transform:rotateX(90deg) translateZ(var(--half))}
.f4{transform:rotateX(-90deg) translateZ(var(--half))}
.f5{transform:rotateY(-90deg) translateZ(var(--half))}
.f6{transform:rotateY(180deg) translateZ(var(--half))}
.dot{width:15px;height:15px;border-radius:50%;align-self:center;justify-self:center;opacity:0;background:radial-gradient(circle at 35% 30%,#3a3a58,#14142a 72%);box-shadow:inset 0 2px 3px rgba(0,0,0,.55),0 1px 0 rgba(255,255,255,.5)}
.dot.show{opacity:1}
.die-shadow{position:absolute;left:50%;bottom:-15px;width:62px;height:14px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(ellipse at center,rgba(0,0,0,.5),transparent 70%);filter:blur(2px);pointer-events:none}
.die-glow{position:absolute;inset:-12px;border-radius:22px;pointer-events:none;opacity:0}
.die3d-slot.empty .face{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14);box-shadow:none}
.die3d-slot.empty .dot{background:rgba(255,255,255,.15);box-shadow:none}
.die3d-slot.held .face{border:2px solid rgba(var(--blue-rgb),.95);box-shadow:inset 0 0 14px rgba(var(--blue-rgb),.45),inset 0 1px 0 rgba(255,255,255,.9),0 0 0 2px rgba(var(--blue-rgb),.55),0 0 24px rgba(var(--blue-rgb),.4)}
.die3d-slot.held .die-glow{inset:-16px;background:radial-gradient(circle,rgba(var(--blue-rgb),.6),transparent 70%);opacity:.85;animation:heldPulse 1.8s ease-in-out infinite}
@keyframes heldPulse{0%,100%{opacity:.65}50%{opacity:1}}
.die3d-slot.cpu-thinking .die-glow{background:radial-gradient(circle,rgba(var(--opp-rgb),.45),transparent 70%);animation:glowPulse 1.2s ease-in-out infinite}
@keyframes glowPulse{0%,100%{opacity:.12}50%{opacity:.7}}
/* Roll button */
.actions{display:flex;justify-content:center;gap:12px;padding:8px}
.btn{padding:11px 24px;border:1px solid transparent;border-radius:8px;font-size:.95rem;font-weight:600;letter-spacing:.2px;cursor:pointer;transition:transform .18s var(--ease-spring),background .18s,border-color .18s,color .18s,opacity .18s}
.btn-roll{background:var(--blue-deep);color:#fff}
.btn-roll:hover:not(:disabled){background:#35558d}
.btn-roll:active:not(:disabled){transform:translateY(1px)}
.btn-stop{background:transparent;border-color:var(--blue);color:var(--blue)}
.btn-stop:hover:not(:disabled){background:rgba(var(--blue-rgb),.10)}
.btn-stop:active:not(:disabled){transform:translateY(1px)}
.btn-new{background:transparent;border-color:var(--border-strong);color:var(--muted)}
.btn-new:hover{color:var(--text);border-color:rgba(148,166,220,.5)}
.btn-new:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:default;transform:none;box-shadow:none}
.setup-opt{padding:16px 32px;font-size:1rem;border-radius:var(--radius);background:var(--surface);cursor:pointer;font-weight:700;letter-spacing:1px;user-select:none;border:1px solid var(--border);transition:border-color .2s,background .2s}
.setup-opt:hover{border-color:var(--border-strong)}
.setup-opt.selected{border-color:var(--blue);background:rgba(var(--blue-rgb),.08)}
.setup-row{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-bottom:24px}
.setup-field{display:flex;flex-direction:column;gap:6px}
.field-label{font-size:.8rem;color:var(--muted);letter-spacing:.5px}
.field-input{padding:10px 16px;border-radius:8px;border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text);font-size:1rem;outline:none;width:200px;transition:border-color .2s,box-shadow .2s}
.field-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(var(--blue-rgb),.18)}
.field-input:disabled{opacity:.55;cursor:not-allowed}
.setup-check{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted);cursor:pointer;user-select:none}
.setup-check input{width:17px;height:17px}
.setup-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:32px 34px;display:flex;flex-direction:column;gap:18px;width:100%;max-width:560px;margin:0 auto}
.setup-card .setup-row{margin-bottom:0;gap:12px}
.setup-card .mode-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.setup-card .names-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.setup-card .field-input{width:100%}
.setup-card .settings-row{justify-content:space-between;align-items:center;flex-wrap:wrap}
.setup-card .settings-row .theme-btn{margin-left:auto}
.setup-card .btn-roll#startGameBtn{width:100%}
.hs-section{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--border);padding-top:12px}
.hs-title{font-size:.8rem;letter-spacing:2px;text-transform:uppercase;color:var(--muted);font-weight:700}
.panel{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-md)}
/* Score cards (one per player; active card = current turn) */
.score-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:720px){.score-cards{grid-template-columns:1fr}}
.score-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);overflow:hidden;transition:border-color .25s,box-shadow .25s}
.score-panel.active{border-color:rgba(var(--blue-rgb),.9);box-shadow:0 0 0 1px rgba(var(--blue-rgb),.3),0 0 24px rgba(var(--blue-rgb),.35),var(--shadow-md)}
.score-panel.active .thead-name{color:var(--blue);text-shadow:0 0 14px rgba(var(--blue-rgb),.55)}
.score-panel thead th{padding:12px 10px;font-size:.95rem;font-weight:700;color:var(--text);border-bottom:1px solid var(--border);white-space:nowrap}
.score-panel thead th:last-child{text-align:right}
.score-panel thead th:first-child{text-align:left}
.score-panel thead .thead-name{display:inline-block;max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.total-badge{display:inline-block;background:var(--emph);color:var(--emph-ink);padding:4px 12px;border-radius:20px;font-size:.85rem;font-weight:800}
.total-badge.bump{animation:badgeBump .55s var(--ease-spring)}
@keyframes badgeBump{35%{transform:scale(1.3)}}
table{width:100%;border-collapse:collapse}
td{padding:6px 14px;font-size:.85rem}
td:first-child{color:var(--muted);text-transform:capitalize;font-weight:500}
.score-panel td{padding:7px 12px;font-size:.85rem}
.score-panel td:last-child{text-align:right;font-weight:700;min-width:48px}
.score-panel td.filled{color:var(--text)}
.score-panel td.available{color:var(--blue);cursor:pointer;transition:background .15s}
.score-panel td.available:hover{background:rgba(var(--blue-rgb),.12)}
.score-panel tbody tr:nth-child(even) td{background:rgba(148,166,220,.05)}
.score-panel tbody tr:not(.section-break):hover td{background:rgba(148,166,220,.12)}
td.cell-new{animation:cellNew 1.5s ease}
@keyframes cellNew{0%{background:rgba(var(--blue-rgb),.35)}100%{background:transparent}}
tr.section-break td{padding-top:12px;border-top:1px solid var(--border);font-weight:700;color:var(--emph);font-size:.75rem;letter-spacing:2px;text-transform:uppercase}
tr.bonus-row td{color:var(--muted);font-style:italic;font-size:.8rem}
/* Tooltip popups */
.cat-tooltip{cursor:help;display:inline-flex;align-items:center;gap:4px}
.cat-tooltip::after{content:'?';display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:rgba(148,166,220,.14);font-size:.65rem;font-weight:700;color:var(--muted);flex-shrink:0;transition:all .2s}
.cat-tooltip:hover::after{background:var(--blue);color:#fff}
.cat-tooltip .tip-box{display:none;position:fixed;z-index:300;width:min(280px,calc(100vw - 16px));background:var(--surface-2);border:1px solid var(--border-strong);border-radius:10px;padding:14px 16px;font-size:.78rem;color:#ccd;font-weight:400;line-height:1.5;box-shadow:var(--shadow-lg);text-align:left;pointer-events:none}
.cat-tooltip .tip-box.tip-show{display:block;animation:tipIn .16s ease}
@keyframes tipIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.cat-tooltip .tip-box .tip-title{font-weight:700;color:var(--emph);font-size:.82rem;margin-bottom:6px;text-transform:capitalize}
.cat-tooltip .tip-box .tip-example{display:flex;gap:4px;margin:8px 0;justify-content:center}
.cat-tooltip .tip-box .tip-die{width:32px;height:32px;background:var(--die-bg);border-radius:6px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);padding:4px}
.cat-tooltip .tip-box .tip-dot{width:5px;height:5px;background:var(--die-dot);border-radius:50%;align-self:center;justify-self:center;opacity:0}
.cat-tooltip .tip-box .tip-dot.on{opacity:1}
.cat-tooltip .tip-box::after{content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);border:6px solid transparent;border-top-color:var(--surface-2)}
.cat-tooltip .tip-box.tip-below::after{top:auto;bottom:100%;border-top-color:transparent;border-bottom-color:var(--surface-2)}
/* Modal overlay for category selection */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(3,6,16,.62);z-index:100;justify-content:center;align-items:center}
.modal-overlay.show{display:flex}
.modal{background:var(--surface);border-radius:16px;padding:30px;max-width:500px;width:90%;max-height:85vh;overflow-y:auto;border:1px solid var(--blue);box-shadow:var(--shadow-lg)}
.modal-overlay.show .modal{animation:modalIn .32s var(--ease-spring)}
@keyframes modalIn{from{opacity:0;transform:scale(.9) translateY(14px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal h2{text-align:center;margin-bottom:16px;color:var(--blue);letter-spacing:.5px}
.modal table td.available{font-size:.9rem;padding:8px 14px}
.modal td.available{transition:background .15s,transform .15s}
.modal td.available:hover{background:rgba(var(--blue-rgb),.12);transform:translateX(4px)}
.modal-hint{margin-top:16px;text-align:center;font-size:.8rem;color:var(--muted);min-height:1.1em}
.modal-hint.locked{color:var(--emph);font-weight:600}
/* Fit 5 dice inside the modal (and on narrow viewports) */
.modal .dice-area{gap:12px;padding:26px 12px}
.modal .die3d-slot{--die-size:min(64px,calc((90vw - 132px)/5));width:var(--die-size);height:var(--die-size);--half:calc(var(--die-size)/2)}
.modal .face{padding:calc(var(--die-size)*.14);border-radius:calc(var(--die-size)*.15)}
.modal .dot{width:calc(var(--die-size)*.19);height:calc(var(--die-size)*.19)}
.modal .die-glow{inset:calc(var(--die-size)*-.15);border-radius:calc(var(--die-size)*.28)}
.modal .die-shadow{width:calc(var(--die-size)*.78);height:12px;bottom:-13px}
/* New-game confirmation dialog */
.confirm-overlay{z-index:120}
.confirm-overlay .modal{max-width:440px;padding:28px 26px 26px}
.confirm-overlay .modal h2{margin-bottom:12px}
.confirm-text{color:var(--muted);text-align:center;font-size:.9rem;line-height:1.55;margin:0 0 24px}
.confirm-actions{display:flex;gap:12px;justify-content:center}
/* Game over banner */
.gameover-banner{text-align:center;padding:30px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border-strong);box-shadow:var(--shadow-md);margin-top:8px}
.gameover-banner h2{font-size:2rem;margin-bottom:8px}
.gameover-banner .winner{font-size:1.5rem;font-weight:800;margin-bottom:4px}
.gameover-banner .winner.win{color:var(--blue)}
.gameover-banner .winner.lose{color:var(--muted)}
.gameover-banner .winner.tie{color:var(--emph)}
.score-compare{display:flex;justify-content:center;gap:40px;margin:16px 0;font-size:1.1rem}
.score-compare div{text-align:center}
.score-compare .label{font-size:.8rem;color:var(--muted)}
.score-compare .value{display:inline-block;margin-left:10px;font-size:1.8rem;font-weight:800}
/* Animations */
@keyframes scoreFlash{
  0%{background:rgba(var(--blue-rgb),0)}
  30%{background:rgba(var(--blue-rgb),.15)}
  100%{background:rgba(var(--blue-rgb),0)}
}
.score-flash{animation:scoreFlash .8s ease-out}
/* 3D dice settle bounce (applied to the slot via Web Animations API in JS;
   this keyframe is the reduced-motion fallback) */
@keyframes diceSettle{
  0%{transform:translateY(-14px)}
  40%{transform:translateY(3px)}
  65%{transform:translateY(-4px)}
  100%{transform:translateY(0)}
}
.die3d-slot.settling{animation:diceSettle .55s ease-out}
.cpu-score-popup{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);background:var(--surface);border:1px solid rgba(var(--opp-rgb),.6);border-radius:16px;padding:24px 40px;z-index:200;text-align:center;box-shadow:var(--shadow-lg);opacity:0;transition:all .3s cubic-bezier(.175,.885,.32,1.275)}
.cpu-score-popup.show{transform:translate(-50%,-50%) scale(1);opacity:1}
.cpu-score-popup h3{color:var(--opp);font-size:1.1rem;margin-bottom:6px;letter-spacing:2px;text-transform:uppercase}
.cpu-score-popup .popup-cat{color:var(--text);font-size:1.3rem;font-weight:700}
.cpu-score-popup .popup-score{color:var(--emph);font-size:2rem;font-weight:800;margin-top:4px}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .3s ease}
/* Yacht (5-of-a-kind) celebration flash */
.yatzy-flash{position:fixed;top:40%;left:50%;z-index:500;pointer-events:none;font-size:clamp(2.4rem,7vw,3.8rem);font-weight:900;letter-spacing:8px;color:var(--emph);opacity:0;transform:translate(-50%,-50%) scale(.35);text-shadow:0 0 26px rgba(var(--blue-rgb),.8),0 0 90px rgba(var(--blue-rgb),.45);animation:yatzyFlash 1.7s cubic-bezier(.22,.9,.32,1) forwards}
@keyframes yatzyFlash{
  0%{opacity:0;transform:translate(-50%,-50%) scale(.35)}
  16%{opacity:1;transform:translate(-50%,-50%) scale(1.12)}
  28%{transform:translate(-50%,-50%) scale(1)}
  72%{opacity:1}
  100%{opacity:0;transform:translate(-50%,-58%) scale(1.06)}
}
/* Game-over score compare bars */
.compare-bar{height:8px;width:130px;margin-top:10px;border-radius:5px;background:rgba(148,166,220,.16);overflow:hidden}
.compare-fill{height:100%;width:0;border-radius:5px;transition:width 1.2s cubic-bezier(.22,.9,.32,1)}
.compare-fill.c1{background:linear-gradient(90deg,var(--blue),rgba(var(--blue-rgb),.45))}
.compare-fill.c2{background:linear-gradient(90deg,var(--opp),rgba(148,166,220,.4))}
/* Theme toggle */
.theme-btn{background:none;border:1px solid var(--border);border-radius:8px;color:var(--muted);cursor:pointer;font-size:.9rem;padding:2px 9px;line-height:1.5;transition:border-color .2s,transform .15s,background .2s}
.theme-btn:hover{border-color:var(--border-strong);transform:translateY(-1px);background:rgba(148,166,220,.08)}
/* Scrollbar */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(136,146,176,.45);border-radius:3px}
/* Chat window */
.chat-window{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-md);display:flex;flex-direction:column;max-height:280px;margin-top:4px}
.chat-header{padding:10px 16px;font-weight:700;font-size:.85rem;letter-spacing:2px;text-transform:uppercase;color:var(--emph);border-bottom:1px solid var(--border);flex-shrink:0;display:flex;justify-content:space-between;align-items:center}
.chat-header .clear-btn{background:none;border:1px solid var(--border);color:var(--muted);font-size:.7rem;padding:3px 10px;border-radius:6px;cursor:pointer;transition:all .2s}
.chat-header .clear-btn:hover{border-color:var(--opp);color:var(--opp)}
.chat-messages{overflow-y:auto;padding:8px 0;flex:1;min-height:80px}
  .chat-window.hidden{display:none}
  .chat-msg{padding:4px 16px;font-size:.8rem;line-height:1.45;animation:chatFadeIn .3s ease;border-left:3px solid transparent;margin:1px 10px;border-radius:0 6px 6px 0}
.chat-msg.human{border-left-color:var(--blue);color:#86a5ff}
.chat-msg.cpu{border-left-color:rgba(var(--opp-rgb),.7);color:var(--muted)}
.chat-msg.system{border-left-color:var(--emph);color:var(--emph);font-weight:600}
.chat-msg .ts{opacity:.45;font-size:.7rem;margin-right:6px;font-variant-numeric:tabular-nums}
@keyframes chatFadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
/* Calm palette (deep green-teal with emerald accent) */
[data-theme="calm"]{
 --bg:#08110e;
 --surface:#0d1a16;
 --surface-2:#12241e;
 --text:#e9f2ee;--muted:#8fa89f;
 --blue:#38b394;--blue-rgb:56,179,148;
 --blue-deep:#2b8f75;
 --opp:#dcefe6;--opp-rgb:220,239,230;
 --emph:#ffffff;--emph-rgb:255,255,255;
 --emph-ink:#0a1410;
 --border:rgba(140,190,170,.14);--border-strong:rgba(140,190,170,.34);
 --shadow-sm:0 2px 10px rgba(1,8,6,.3);
 --shadow-md:0 8px 24px rgba(1,8,6,.35);
 --shadow-lg:0 20px 50px rgba(1,8,6,.5);
}
[data-theme="calm"] .dice-area{background:radial-gradient(ellipse 120% 90% at 50% 18%,rgba(var(--blue-rgb),.10),transparent 60%),#0b1613}
[data-theme="calm"] .chat-msg.human{color:#63c6a8}
/* Respect reduced-motion preference */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}