/* 话局 Juntoa — design system implementation
   Source of truth: design-system/话局 · 核心页面 UI.html + 话局 · 设计系统.html
   Warm cream canvas · ink #141414 · brand orange #FF5A2C
   Display = Noto Serif SC 900 · numerals/labels = Bricolage Grotesque
   italic tagline = Fraunces · body = Noto Sans SC */

/* Self-hosted latin display fonts (no external CDN — works behind the GFW).
   CJK uses the system font stack (PingFang SC / Microsoft YaHei / Songti SC). */
@font-face{
  font-family:"Bricolage Grotesque";
  font-style:normal;font-weight:600 800;font-display:swap;
  src:url("./assets/fonts/bricolage-grotesque-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2191,U+2193,U+2212;
}
@font-face{
  font-family:"Fraunces";
  font-style:italic;font-weight:400 500;font-display:swap;
  src:url("./assets/fonts/fraunces-italic-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122;
}

:root{
  /* surfaces */
  --canvas:#FFFAF4;          /* phone screen background */
  --outer:#F3EEE6;           /* desktop board background */
  --surface:#FFF8EF;         /* card / inset surface */
  --ink:#141414;
  --cream:#FFFAF4;           /* text/icon on dark */
  --muted:#6B655E;
  --muted-on-dark:#BDB6AC;
  --subtle:#A39B91;
  --disabled-ink:#8A8279;
  --line:#E8E0D6;
  --line-2:#E4DDD3;
  --line-strong:#C9C0B4;

  /* brand + card color pool */
  --brand:#FF5A2C;
  --blue:#1F40E0;
  --yellow:#FFD43B;
  --purple:#B9A6FF;
  --teal:#1DB98A;
  --deep-green:#0F5F52;
  --lime:#C8E64C;
  --pink:#FF9EC0;
  --danger:#D0342C;
  --success:#1DB98A;

  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-grotesque:"Bricolage Grotesque",ui-sans-serif,-apple-system,sans-serif;
  --font-italic:"Fraunces",Georgia,serif;

  --radius-screen:44px;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --radius-xs:12px;
  --radius-pill:999px;

  --tap-min:44px;
  --shell-w:430px;
  --design-w:375px;

  --ease-out:cubic-bezier(.22,1,.36,1);
  --ease-spring:cubic-bezier(.34,1.56,.64,1);
  --dur-fast:140ms;
  --dur-base:260ms;
  --dur-stage:440ms;

  --shadow-card:0 0 0 1.5px var(--line),0 22px 44px rgba(20,20,20,.10);
  --shadow-cta:0 10px 24px rgba(20,20,20,.14);
}

*{box-sizing:border-box}
/* app owns its warm theme — never let the OS/browser auto-invert it to dark */
:root{color-scheme:light}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body,#app{margin:0;min-height:100%;background:var(--canvas);color:var(--ink)}
body{
  min-height:100dvh;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
button,input{font:inherit;color:inherit}
button{touch-action:manipulation;cursor:pointer}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:6px}
.icon{display:block;flex:none}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}

/* ============ wordmark: 话 with partial orange cut ============ */
/* base uses currentColor so the wordmark adapts to its surface (dark or light) */
.jt-hua{
  display:inline-block;color:transparent;
  background:linear-gradient(var(--brand),var(--brand)) 0 0/36% 33% no-repeat,
             linear-gradient(var(--wordmark-ink),var(--wordmark-ink));
  -webkit-background-clip:text;background-clip:text;
}
.wordmark{font-weight:900;letter-spacing:.02em;--wordmark-ink:currentColor}

/* ============ phone shell ============ */
.page-shell,.game-shell{
  position:relative;
  width:100%;
  max-width:var(--shell-w);
  min-height:100dvh;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  background:var(--canvas);
  overflow:hidden;
  padding:
    max(44px,env(safe-area-inset-top))
    max(24px,env(safe-area-inset-right))
    max(30px,env(safe-area-inset-bottom))
    max(24px,env(safe-area-inset-left));
}
.scroll-body{flex:1;min-height:0;overflow-y:auto;overscroll-behavior-y:contain;scrollbar-width:none;display:flex;flex-direction:column}
.scroll-body::-webkit-scrollbar{display:none}
.spacer{flex:1}

/* ============ top bar ============ */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px}
.topbar.center{justify-content:center}
.brand-lockup{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);background:none;border:0;padding:0}
.brand-lockup .wordmark{font-size:21px}
.icon-btn{
  width:44px;height:44px;flex:none;border-radius:var(--radius-sm);
  border:1.5px solid var(--ink);background:transparent;color:var(--ink);
  display:flex;align-items:center;justify-content:center;padding:0;
  transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast);
}
.icon-btn:active{transform:scale(.94)}
.icon-btn.ghost{border-color:var(--line)}
.icon-btn.on-dark{border-color:rgba(255,248,239,.5);color:var(--cream)}
.icon-btn.soft{border-color:var(--line);background:var(--surface)}

/* language segmented */
.lang-seg{display:flex;height:36px;border:1.5px solid var(--line);border-radius:var(--radius-xs);overflow:hidden;flex:none}
.lang-seg button{width:40px;border:0;background:transparent;color:var(--muted);font-size:12px;font-weight:600;padding:0;font-family:var(--font-grotesque)}
.lang-seg button[aria-pressed="true"]{background:var(--ink);color:var(--cream);font-size:13px;font-weight:700;font-family:var(--font-sans)}

/* ============ buttons ============ */
.btn{
  width:100%;min-height:52px;border:0;border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;
  transition:transform var(--dur-fast) var(--ease-out),opacity var(--dur-fast),background var(--dur-fast);
}
.btn:active:not(:disabled){transform:translateY(1px) scale(.992)}
.btn:disabled{cursor:not-allowed}

/* primary CTA: dark bar + orange circular arrow badge */
.cta{
  width:100%;height:60px;border:0;border-radius:var(--radius-md);
  background:var(--ink);color:var(--cream);
  font-size:17px;font-weight:900;letter-spacing:.06em;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 9px 0 22px;box-shadow:var(--shadow-cta);
  transition:transform var(--dur-fast) var(--ease-out),opacity var(--dur-fast);
}
.cta.center{justify-content:center;padding:0 22px}
.cta:active:not(:disabled){transform:translateY(1px) scale(.992)}
.cta:disabled{background:var(--line-2);color:var(--disabled-ink);box-shadow:none;cursor:not-allowed}
.cta .badge{
  width:42px;height:42px;flex:none;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
}
.cta:disabled .badge{display:none}

.btn-outline{
  width:100%;height:52px;border:1.5px solid var(--ink);border-radius:var(--radius-md);
  background:transparent;color:var(--ink);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;gap:8px;
  transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast);
}
.btn-outline:active{transform:translateY(1px) scale(.992)}

.btn-link{
  min-height:40px;border:0;background:transparent;color:var(--ink);
  font-size:14px;font-weight:700;
  text-decoration:underline;text-decoration-color:var(--brand);
  text-decoration-thickness:2px;text-underline-offset:5px;
}
.btn-link.muted{color:var(--muted);font-weight:500;text-decoration-color:transparent;text-decoration-thickness:0}

/* ============ typography helpers ============ */
.eyebrow{margin:0;font-family:var(--font-grotesque);font-weight:600;font-size:12px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase}
.serif-display{font-family:var(--font-serif);font-weight:900;line-height:1.16;letter-spacing:.005em}
.tagline{font-family:var(--font-italic);font-style:italic;color:#4A4540}
.lead-h2{margin:0;font-weight:900;font-size:28px;line-height:1.25}
.sub{margin:8px 0 0;font-size:14px;color:var(--muted)}
.num{font-family:var(--font-grotesque);font-weight:800}

/* ============ HOME ============ */
.home-deck{position:relative;height:236px;margin-top:18px}
.home-deck .deck-card{position:absolute;box-sizing:border-box;border-radius:20px;padding:12px}
.deck-card .corner{font-family:var(--font-grotesque);font-weight:800;font-size:17px}
.deck-back-1{left:30px;top:34px;width:136px;height:184px;background:var(--blue);color:#fff;transform:rotate(-13deg);box-shadow:0 16px 32px rgba(20,30,90,.22)}
.deck-back-2{left:164px;top:30px;width:136px;height:184px;background:var(--yellow);color:var(--ink);transform:rotate(12deg);box-shadow:0 16px 32px rgba(120,90,10,.20);display:flex;justify-content:flex-end}
.deck-front{left:94px;top:10px;width:142px;height:196px;padding:14px;background:var(--brand);color:#fff;transform:rotate(-2deg);box-shadow:0 22px 44px rgba(150,50,10,.28);overflow:hidden;display:flex;flex-direction:column}
.deck-front .frame{position:absolute;inset:6px;border:1px solid rgba(255,255,255,.45);border-radius:17px}
.deck-front .bleed{position:absolute;left:-36px;bottom:-40px;opacity:.16}
.deck-front .top{position:relative;display:flex;justify-content:space-between;align-items:flex-start}
.deck-front .top .no{display:flex;flex-direction:column;align-items:center;gap:3px;font-family:var(--font-grotesque);font-weight:800;font-size:18px;line-height:1}
.deck-front .label{font-family:var(--font-grotesque);font-weight:600;font-size:9px;letter-spacing:.16em}
.deck-front .prompt{position:relative;margin:18px 0 0;font-family:var(--font-serif);font-weight:900;font-size:18px;line-height:1.4}
.home-title{margin:18px 0 0;font-family:var(--font-serif);font-weight:900;font-size:clamp(40px,12vw,48px);line-height:1.16}
.home-tagline{display:block;margin-top:10px;font-size:18px}
.home-body{margin:10px 0 0;font-size:15px;line-height:1.6;color:var(--muted)}
.home-actions{display:flex;flex-direction:column;gap:10px;padding-top:16px}

/* ============ SETUP (create flow) ============ */
.setup-head{display:flex;align-items:center;gap:14px}
.progress-seg{flex:1;display:flex;gap:4px}
.progress-seg span{flex:1;height:4px;border-radius:2px;background:var(--line-2)}
.progress-seg span.on{background:var(--ink)}
.step-count{font-family:var(--font-grotesque);font-weight:600;font-size:12px;color:var(--muted)}
.setup-q{margin:30px 0 0;font-weight:900;font-size:28px;line-height:1.25}
.setup-sub{margin:8px 0 0;font-size:14px;color:var(--muted)}
.setup-h3{margin:0;font-weight:700;font-size:20px}

.scene-grid{margin-top:24px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.scene-card{
  position:relative;height:108px;border-radius:var(--radius-md);
  border:1.5px solid var(--ink);background:var(--surface);color:var(--ink);
  padding:16px;display:flex;flex-direction:column;justify-content:space-between;align-items:flex-start;
  text-align:left;font-size:16px;font-weight:700;
  transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast);
}
.scene-card:active{transform:scale(.98)}
.scene-card[aria-pressed="true"]{border:0;background:var(--ink);color:var(--cream)}
.scene-card .tick{position:absolute;right:14px;top:14px;width:24px;height:24px;border-radius:50%;background:var(--cream);display:flex;align-items:center;justify-content:center}

.chip-grid{margin-top:18px;display:grid;gap:8px}
.chip-grid.c4{grid-template-columns:repeat(4,minmax(0,1fr))}
.chip-grid.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.pick{
  height:56px;border-radius:var(--radius-sm);border:1.5px solid var(--ink);
  background:var(--surface);color:var(--ink);font-size:15px;font-weight:700;padding:0;
  display:flex;align-items:center;justify-content:center;
  transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast);
}
.pick:active{transform:scale(.97)}
.pick[aria-pressed="true"]{border:0;background:var(--ink);color:var(--cream)}

.opt-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.opt-row{
  width:100%;min-height:64px;border-radius:var(--radius-md);border:1.5px solid var(--ink);
  background:var(--surface);color:var(--ink);font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;text-align:left;
  transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast);
}
.opt-row:active{transform:scale(.99)}
.opt-row[aria-pressed="true"]{border:0;background:var(--ink);color:var(--cream)}
.opt-row .col{display:flex;flex-direction:column;gap:3px}
.opt-row .col small{font-size:12px;font-weight:500;color:var(--muted)}
.opt-row[aria-pressed="true"] .col small{color:var(--muted-on-dark)}
.radio{width:22px;height:22px;flex:none;box-sizing:border-box;border-radius:50%;border:1.5px solid var(--line-strong)}
.radio.on{width:24px;height:24px;border:0;background:var(--cream);display:flex;align-items:center;justify-content:center}

.dur-grid{margin-top:14px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.dur-card{
  height:96px;border-radius:var(--radius-md);border:1.5px solid var(--ink);background:var(--surface);color:var(--ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0;
  transition:transform var(--dur-fast) var(--ease-out),background var(--dur-fast);
}
.dur-card:active{transform:scale(.97)}
.dur-card[aria-pressed="true"]{border:0;background:var(--ink);color:var(--cream)}
.dur-card .big{font-family:var(--font-grotesque);font-weight:800;font-size:30px;line-height:1}
.dur-card .big i{font-family:var(--font-sans);font-style:normal;font-size:12px;font-weight:500;margin-left:3px}
.dur-card .note{font-size:12px;color:var(--muted)}
.dur-card[aria-pressed="true"] .note{color:var(--muted-on-dark)}
.dur-card .rec{height:20px;box-sizing:border-box;padding:0 7px;border-radius:6px;border:1px solid rgba(255,250,244,.55);color:var(--cream);font-size:11px;font-weight:700;display:inline-flex;align-items:center}

/* confirm step */
.confirm-card{margin-top:18px;border-radius:var(--radius-lg);background:var(--surface);border:1.5px solid var(--line);padding:16px 18px;display:flex;flex-direction:column;gap:8px}
.confirm-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.confirm-row>span{font-size:16px;font-weight:700}
.confirm-card small{font-size:12px;line-height:1.55;color:var(--muted)}
.toggle{position:relative;width:52px;height:32px;flex:none;border:0;border-radius:10px;background:var(--line-2);padding:0;transition:background var(--dur-base) var(--ease-out)}
.toggle i{position:absolute;left:4px;top:4px;width:24px;height:24px;border-radius:7px;background:var(--cream);box-shadow:0 1px 3px rgba(20,20,20,.18);transition:transform var(--dur-base) var(--ease-spring)}
.toggle[aria-pressed="true"]{background:var(--brand)}
.toggle[aria-pressed="true"] i{transform:translateX(20px)}
.lang-block{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.lang-block .row{display:flex;align-items:baseline;justify-content:space-between}
.lang-block .row span:first-child{font-size:13px;font-weight:700}
.lang-block .row span:last-child{font-size:12px;color:var(--muted)}
.lang-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.lang-grid .opt{height:52px;border-radius:var(--radius-sm);border:1.5px solid var(--ink);background:transparent;color:var(--ink);font-size:14px;font-weight:700;padding:0}
.lang-grid .opt[aria-pressed="true"]{border:0;background:var(--ink);color:var(--cream)}
.lang-grid .opt:disabled{border:1.5px dashed var(--line-strong);color:var(--subtle);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px}
.lang-grid .opt:disabled small{font-size:10px}
.summary{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.summary>span{font-size:13px;font-weight:700}
.summary .chips{display:flex;flex-wrap:wrap;gap:8px}
.summary .chips span{height:32px;box-sizing:border-box;padding:0 12px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface);font-size:13px;font-weight:500;display:inline-flex;align-items:center}
.center-note{margin:0;text-align:center;font-size:13px;color:var(--muted)}

/* ============ JOIN ============ */
.code-input{position:relative;margin-top:26px;display:flex;gap:8px}
.code-input input{position:absolute;inset:0;width:100%;height:100%;opacity:0;border:0;padding:0;font-size:16px}
.code-cell{
  flex:1;height:62px;box-sizing:border-box;border-radius:var(--radius-sm);
  background:var(--surface);border:1.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-grotesque);font-weight:800;font-size:28px;
}
.code-cell.filled{border-color:var(--ink)}
.code-cell.cursor{background:#fff;border:2.5px solid var(--ink)}
.code-cell.cursor::after{content:"";width:2px;height:26px;background:var(--ink);animation:caret 1s steps(1) infinite}
.code-input.error .code-cell{border:2px solid var(--danger)}
@keyframes caret{50%{opacity:0}}

.nick-card{margin-top:28px;border-radius:var(--radius-md);background:var(--surface);border:1.5px solid var(--line);padding:12px 14px;display:flex;align-items:center;gap:12px}
.nick-card .av{flex:none;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:16px}
.nick-card .col{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.nick-card .col small{font-size:12px;color:var(--muted)}
.nick-card .col strong{font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nick-edit{height:44px;border:0;background:transparent;color:var(--ink);font-size:14px;font-weight:700;padding:0 4px;text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;text-underline-offset:5px}

.alert-card{margin-top:16px;border-radius:var(--radius-lg);background:var(--surface);border:1.5px solid var(--line);padding:16px;display:flex;align-items:center;gap:14px}
.alert-card .mark{flex:none;width:44px;height:44px;border-radius:50%;background:var(--yellow);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-grotesque);font-weight:800;font-size:22px}
.alert-card .t{font-size:16px;font-weight:900;color:var(--danger)}
.alert-card .d{font-size:13px;color:var(--muted);margin-top:2px}

/* ============ LOBBY ============ */
.room-strip{margin-top:18px;border-radius:var(--radius-lg);background:var(--ink);color:var(--cream);padding:14px 14px 14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.room-strip .meta{font-size:13px;color:var(--muted-on-dark)}
.room-strip .code{font-family:var(--font-grotesque);font-weight:800;font-size:30px;letter-spacing:.18em;margin-top:2px}
.room-strip .actions{display:flex;gap:8px}
.room-strip .icon-btn{border-color:#4A4540;color:var(--cream)}
.room-strip .icon-btn.solid{border:0;background:var(--cream);color:var(--ink)}
.room-sub{margin:10px 0 0;font-size:12px;font-weight:500;color:var(--muted)}

.joined-banner{margin-top:14px;border-radius:var(--radius-md);background:var(--surface);border:1.5px solid var(--line);padding:14px 16px;display:flex;align-items:center;gap:12px}
.joined-banner .ok{flex:none;width:32px;height:32px;border-radius:50%;background:var(--teal);display:flex;align-items:center;justify-content:center}
.joined-banner strong{display:block;font-size:16px;font-weight:900}
.joined-banner small{font-size:12px;color:var(--muted)}

.list-head{margin-top:22px;display:flex;align-items:baseline;justify-content:space-between}
.list-head h3{margin:0;font-weight:700;font-size:20px}
.list-head .count{font-family:var(--font-grotesque);font-weight:600;font-size:13px;color:var(--muted)}

.players{margin-top:12px;border-radius:var(--radius-lg);background:var(--surface);border:1.5px solid var(--line);padding:2px 16px}
.player{display:flex;align-items:center;gap:12px;min-height:58px;border-bottom:1.5px solid var(--line)}
.player:last-child{border-bottom:0}
.player .av{flex:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:15px}
.player .nm{font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.player .grow{flex:1}
.tag{height:22px;padding:0 8px;border-radius:8px;font-size:12px;font-weight:700;display:inline-flex;align-items:center}
.tag.host{background:var(--ink);color:var(--cream)}
.tag.me{background:var(--brand);color:#fff}
.tag.new{background:var(--yellow);color:var(--ink)}
.presence{font-size:12px;color:var(--muted);display:inline-flex;align-items:center;gap:5px}
.presence::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}

.empty-invite{margin-top:12px;border-radius:var(--radius-lg);border:1.5px dashed var(--line-strong);padding:22px 20px;display:flex;flex-direction:column;align-items:center;text-align:center}
.empty-invite .dots{display:flex;gap:8px}
.empty-invite .dots span{width:36px;height:36px;box-sizing:border-box;border-radius:50%;border:1.5px dashed var(--subtle)}
.empty-invite strong{margin-top:14px;font-size:17px;font-weight:900}
.empty-invite small{margin-top:4px;font-size:13px;color:var(--muted)}

.waiting{height:60px;box-sizing:border-box;border-radius:var(--radius-md);border:1.5px dashed var(--line-strong);display:flex;align-items:center;justify-content:center;gap:12px;font-size:16px;font-weight:700}
.waiting .pips{display:flex;gap:5px}
.waiting .pips span{width:8px;height:8px;border-radius:50%;animation:pip 1.2s var(--ease-out) infinite}
.waiting .pips span:nth-child(1){background:var(--brand)}
.waiting .pips span:nth-child(2){background:var(--blue);animation-delay:.15s}
.waiting .pips span:nth-child(3){background:var(--yellow);animation-delay:.3s}
@keyframes pip{0%,100%{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}

.lobby-foot{padding-top:14px;display:flex;flex-direction:column;gap:10px}

/* ============ GAME CARD ============ */
.game-shell{
  background:var(--game-bg,var(--blue));color:var(--game-fg,#fff);
  padding:
    max(40px,env(safe-area-inset-top))
    max(22px,env(safe-area-inset-right))
    max(30px,env(safe-area-inset-bottom))
    max(22px,env(safe-area-inset-left));
  transition:background var(--dur-stage) var(--ease-out),color var(--dur-stage) var(--ease-out);
}
.game-shell .inner-frame{position:absolute;inset:10px;border:1px solid var(--game-frame,rgba(255,255,255,.42));border-radius:36px;pointer-events:none}
.game-shell .bleed{position:absolute;left:-96px;bottom:110px;opacity:.14;pointer-events:none}
.game-head{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:8px;min-height:44px}
.game-head .l{display:flex;flex-direction:column;gap:3px;font-family:var(--font-grotesque);font-weight:600;font-size:11px;letter-spacing:.14em}
.game-head .l .code{opacity:.7}
.game-head .c{display:flex;flex-direction:column;align-items:center;gap:6px}
.game-head .c .n{font-family:var(--font-grotesque);font-weight:600;font-size:13px;letter-spacing:.12em}
.game-head .c .bar{position:relative;display:block;width:96px;height:3px;border-radius:2px;background:rgba(255,248,239,.3)}
.game-head .c .bar i{position:absolute;left:0;top:0;height:3px;border-radius:2px;background:#FFF8EF;transition:width var(--dur-base) var(--ease-out)}
.game-head .r{display:flex;justify-content:flex-end}

.turn-pill{position:relative;margin-top:30px;display:flex}
.turn-pill .mine{height:44px;padding:0 18px 0 14px;border-radius:12px;background:var(--cream);color:var(--game-bg);font-size:17px;font-weight:900;display:inline-flex;align-items:center;gap:9px;box-shadow:0 0 0 5px rgba(255,250,244,.25)}
.turn-pill .mine::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--game-bg)}
.turn-pill .other{height:44px;box-sizing:border-box;padding:0 16px 0 8px;border-radius:12px;border:1.5px solid rgba(255,248,239,.7);font-size:16px;font-weight:500;display:inline-flex;align-items:center;gap:9px}
.turn-pill .other .av{width:30px;height:30px;border-radius:50%;background:var(--cream);color:var(--game-bg);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900}

.card-corner{position:relative;margin-top:30px;display:flex;justify-content:space-between;align-items:flex-start}
.card-corner .no{display:flex;flex-direction:column;align-items:center;gap:4px;font-family:var(--font-grotesque);font-weight:800;font-size:30px;line-height:1}
.card-corner .type{display:flex;flex-direction:column;align-items:flex-end;gap:2px}
.card-corner .type .en{font-family:var(--font-grotesque);font-weight:600;font-size:11px;letter-spacing:.16em}
.card-corner .type .cn{font-weight:900;font-size:17px}

.prompt{position:relative;margin:22px 0 0;font-family:var(--font-serif);font-weight:900;font-size:clamp(30px,8.6vw,34px);line-height:1.38}
.hint{position:relative;margin-top:20px}
.hint .dots{display:flex;gap:4px;margin-bottom:10px}
.hint .dots span{width:4px;height:4px;border-radius:50%;background:currentColor}
.hint p{margin:0;font-size:15px;line-height:1.5}

/* card face: the only part that animates between cards (header + footer stay put) */
.card-face{position:relative;z-index:1;flex:1;min-height:0;display:flex;flex-direction:column;will-change:transform,opacity}
.card-face.face-next{animation:faceNext var(--dur-stage) var(--ease-out)}
.card-face.face-prev{animation:facePrev var(--dur-stage) var(--ease-out)}
.card-face.face-swap{animation:faceSwap var(--dur-stage) var(--ease-out)}
@keyframes faceNext{from{opacity:0;transform:translateX(32px)}to{opacity:1;transform:none}}
@keyframes facePrev{from{opacity:0;transform:translateX(-32px)}to{opacity:1;transform:none}}
@keyframes faceSwap{0%{opacity:0;transform:scale(.94) rotate(-2deg)}100%{opacity:1;transform:none}}

.game-foot{position:relative;display:grid;grid-template-columns:64px minmax(0,1fr);gap:10px;margin-top:16px}
.game-foot.single{grid-template-columns:1fr}
.skip-btn{height:60px;border-radius:var(--radius-md);border:1.5px solid rgba(255,248,239,.6);background:transparent;color:inherit;font-size:13px;font-weight:700;padding:0;transition:transform var(--dur-fast)}
.skip-btn:active:not(:disabled){transform:scale(.97)}
.skip-btn:disabled{opacity:.4;cursor:not-allowed}
.skip-btn small{display:block;margin-top:2px;font-size:10px;font-weight:600;opacity:.75}
.next-btn{height:60px;border-radius:var(--radius-md);border:0;background:var(--cream);color:var(--ink);font-size:16px;font-weight:900;letter-spacing:.04em;display:flex;align-items:center;justify-content:space-between;padding:0 9px 0 18px;transition:transform var(--dur-fast)}
.next-btn.center{justify-content:center;padding:0 18px}
.next-btn:active:not(:disabled){transform:translateY(1px) scale(.992)}
.next-btn:disabled{opacity:.5;cursor:not-allowed}
.next-btn .badge{width:42px;height:42px;flex:none;border-radius:50%;background:var(--game-bg);color:var(--game-fg);display:flex;align-items:center;justify-content:center}

/* three-up footer: 上一张 / 换一题 / 下一张 — same for host and guests */
.game-foot.three{z-index:1;grid-template-columns:1fr 1fr 1.35fr;gap:8px}
.foot-btn{min-width:0;height:56px;border-radius:16px;border:1.5px solid var(--game-frame);background:transparent;color:inherit;display:flex;align-items:center;justify-content:center;gap:6px;font-size:14px;font-weight:700;padding:0 6px;transition:transform var(--dur-fast),opacity var(--dur-fast)}
.foot-btn span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.foot-btn i{font-style:normal;font-family:var(--font-grotesque);font-weight:800;opacity:.85;margin-left:2px}
.foot-btn:active:not(:disabled){transform:scale(.97)}
.foot-btn:disabled{opacity:.38;cursor:not-allowed}
.foot-btn.primary{border:0;background:var(--cream);color:var(--ink);font-weight:900}
.foot-btn.primary .badge{width:32px;height:32px;flex:none;border-radius:50%;background:var(--game-bg);color:var(--game-fg);display:flex;align-items:center;justify-content:center;margin-left:4px}
.turn-note{position:relative;margin:10px 0 0;text-align:center;font-size:12px;opacity:.85}

/* waiting (not your turn) */
.wait-box{position:relative;height:72px;box-sizing:border-box;border-radius:var(--radius-md);border:1.5px solid rgba(255,248,239,.4);background:rgba(20,20,20,.18);padding:0 16px;display:flex;align-items:center;gap:12px}
.wait-box .av{flex:none;width:40px;height:40px;border-radius:50%;background:var(--cream);color:var(--game-bg);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900}
.wait-box strong{font-size:17px;font-weight:900}
.wait-box small{font-size:13px;opacity:.85}

/* network / reconnect banner on card */
.net-banner{position:relative;min-height:52px;box-sizing:border-box;border-radius:var(--radius-sm);background:var(--ink);color:var(--cream);padding:10px 16px;display:flex;align-items:center;gap:12px;font-size:15px;font-weight:500}
.net-banner .spin{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ bottom sheet (host controls / invite) ============ */
.sheet-scrim{position:absolute;inset:0;background:rgba(20,20,20,.5);z-index:10;animation:fade var(--dur-base) var(--ease-out)}
.sheet{position:absolute;left:0;right:0;bottom:0;z-index:11;border-radius:32px 32px 0 0;background:var(--canvas);color:var(--ink);padding:10px 24px max(34px,env(safe-area-inset-bottom));display:flex;flex-direction:column;animation:sheet-up var(--dur-stage) var(--ease-out)}
.sheet .grab{align-self:center;width:40px;height:4px;border-radius:2px;background:var(--line-2)}
.sheet-head{margin-top:14px;display:flex;align-items:center;justify-content:space-between}
.sheet-head h3{margin:0;font-weight:900;font-size:22px}
.sheet-head p{margin:2px 0 0;font-size:12px;color:var(--muted)}
.sheet-actions{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.host-action{width:100%;min-height:68px;border-radius:var(--radius-md);border:1.5px solid var(--line);background:var(--surface);color:var(--ink);display:flex;align-items:center;gap:14px;padding:12px 16px;text-align:left}
.host-action:active{transform:scale(.99)}
.host-action .col{display:flex;flex-direction:column;gap:2px}
.host-action .col strong{font-size:16px;font-weight:700}
.host-action .col small{font-size:12px;color:var(--muted)}
.danger-box{border-radius:var(--radius-md);border:2px solid var(--danger);background:var(--surface);padding:14px 16px;display:flex;flex-direction:column;gap:12px}
.danger-box .row{display:flex;align-items:center;gap:14px}
.danger-box .row .col strong{font-size:16px;font-weight:900}
.danger-box .row .col small{font-size:12px;color:var(--muted)}
.danger-box .btns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.danger-box .btns button{height:48px;border-radius:var(--radius-sm);font-size:14px;font-weight:700}
.danger-box .cancel{border:1.5px solid var(--ink);background:transparent;color:var(--ink)}
.danger-box .confirm{border:0;background:var(--danger);color:#fff;font-weight:900}

@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes sheet-up{from{transform:translateY(100%)}to{transform:translateY(0)}}

/* confirm dialog (centered) */
.confirm-dialog{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:11;width:min(320px,calc(100% - 48px));background:var(--canvas);border-radius:var(--radius-lg);padding:24px 22px;box-shadow:0 24px 60px rgba(20,20,20,.3);animation:pop var(--dur-base) var(--ease-spring)}
.confirm-dialog h3{margin:0;font-weight:900;font-size:20px}
.confirm-dialog p{margin:8px 0 0;font-size:14px;line-height:1.55;color:var(--muted)}
.dialog-btns{margin-top:20px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.dialog-btns button{height:50px;border-radius:var(--radius-sm);font-size:15px;font-weight:700}
.dialog-btns .cancel{border:1.5px solid var(--ink);background:transparent;color:var(--ink)}
.dialog-btns .confirm{border:0;background:var(--danger);color:#fff;font-weight:900}
@keyframes pop{from{opacity:0;transform:translate(-50%,-46%) scale(.96)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}

/* ============ REVIEW ============ */
.review-deck{position:relative;height:218px;margin-top:14px}
.review-deck .rc{position:absolute;border-radius:20px}
.review-deck .rc.b1{left:44px;top:30px;width:128px;height:172px;background:var(--purple);transform:rotate(-12deg)}
.review-deck .rc.b2{left:160px;top:26px;width:128px;height:172px;background:var(--deep-green);transform:rotate(11deg)}
.review-deck .front{left:96px;top:6px;width:138px;height:190px;box-sizing:border-box;padding:13px;background:var(--lime);color:var(--ink);transform:rotate(-2deg);box-shadow:0 22px 44px rgba(60,80,10,.24);overflow:hidden;display:flex;flex-direction:column;border-radius:22px}
.review-deck .front .frame{position:absolute;inset:6px;border:1px solid rgba(20,20,20,.26);border-radius:17px}
.review-deck .front .bleed{position:absolute;left:-34px;bottom:-40px;opacity:.16}
.review-deck .front .top{position:relative;display:flex;justify-content:space-between;align-items:flex-start}
.review-deck .front .top .no{font-family:var(--font-grotesque);font-weight:800;font-size:18px;line-height:1}
.review-deck .front .top .en{font-family:var(--font-grotesque);font-weight:600;font-size:9px;letter-spacing:.16em}
.review-deck .front .p{position:relative;margin:16px 0 0;font-family:var(--font-serif);font-weight:900;font-size:16px;line-height:1.45}
.solo-end-deck{width:min(100%,330px);flex:none}
.solo-end-deck .rc.b1{left:13.333%;width:38.788%;height:auto;aspect-ratio:128/172}
.solo-end-deck .rc.b2{left:48.485%;width:38.788%;height:auto;aspect-ratio:128/172}
.solo-end-deck .front{left:29.091%;width:41.818%;height:auto;aspect-ratio:138/190}
.review-title{margin:16px 0 0;font-family:var(--font-serif);font-weight:900;font-size:clamp(30px,9vw,36px);line-height:1.2}
.review-sub{margin:8px 0 0;font-size:14px;color:var(--muted)}
.stats{margin-top:18px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.stats.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.stats .s{border-radius:var(--radius-md);background:var(--surface);border:1.5px solid var(--line);padding:12px 14px}
.stats .s b{display:block;font-family:var(--font-grotesque);font-weight:800;font-size:30px;line-height:1.1}
.stats .s span{font-size:12px;color:var(--muted)}
.avatar-row{margin-top:14px;display:flex;align-items:center;gap:10px}
.avatar-stack{display:flex}
.avatar-stack span{width:30px;height:30px;border-radius:50%;box-shadow:0 0 0 2px var(--canvas);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:12px}
.avatar-stack span+span{margin-left:-7px}
.avatar-names{font-size:13px;color:var(--muted)}
.review-foot{padding-top:14px;display:flex;flex-direction:column;gap:4px}

/* ============ centered empty / status screens ============ */
.center-screen{align-items:center;text-align:center}
.center-screen .scroll-body{align-self:stretch;width:100%}
.center-screen .big-title{margin:24px 0 0;font-weight:900;font-size:26px;line-height:1.3}
.center-screen .big-body{margin:10px 0 0;font-size:14px;line-height:1.6;color:var(--muted)}
.ghost-deck{position:relative;width:220px;height:220px;align-self:center}
.ghost-deck .g1{position:absolute;left:70px;top:18px;width:128px;height:176px;box-sizing:border-box;border-radius:22px;background:var(--line);transform:rotate(10deg)}
.ghost-deck .g2{position:absolute;left:34px;top:12px;width:136px;height:186px;box-sizing:border-box;border-radius:22px;border:2px dashed var(--subtle);background:var(--canvas);transform:rotate(-6deg);display:flex;align-items:center;justify-content:center;font-family:var(--font-grotesque);font-weight:800;font-size:56px;color:var(--subtle)}

/* reconnect splash */
.splash{align-items:center;justify-content:center;text-align:center}
.splash .mark{margin-bottom:12px}
.splash .wm{font-weight:900;font-size:32px;letter-spacing:.04em}
.splash .status{margin-top:56px;display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700}
.splash .status .spin{color:var(--brand);animation:spin 1s linear infinite}
.splash .room{margin-top:10px;font-size:13px;color:var(--muted)}
.splash .room .num{font-weight:700;letter-spacing:.12em}
.splash .foot{position:absolute;bottom:max(40px,env(safe-area-inset-bottom));font-size:17px}

/* toast */
.toast{position:absolute;left:50%;bottom:92px;transform:translateX(-50%);z-index:30;height:40px;box-sizing:border-box;padding:0 14px;border-radius:12px;background:var(--cream);color:var(--ink);font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(20,20,20,.2);animation:toast-in var(--dur-base) var(--ease-out)}
.toast::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--teal)}
@keyframes toast-in{from{opacity:0;transform:translateX(-50%) translateY(8px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* card enter animation */
.card-anim{animation:card-in var(--dur-stage) var(--ease-out)}
@keyframes card-in{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}

/* ============ desktop: present the phone, do not stretch it ============ */
@media(min-width:760px){
  body{background:var(--outer);padding:28px 0;display:flex;align-items:center;justify-content:center;min-height:100dvh}
  #app{width:100%;display:flex;justify-content:center}
  .page-shell,.game-shell{
    width:var(--design-w);min-height:812px;max-height:calc(100dvh - 56px);
    border-radius:var(--radius-screen);box-shadow:var(--shadow-card);
    padding:56px 24px 34px;
  }
  .game-shell{box-shadow:0 22px 44px rgba(20,30,90,.30)}
}
@media(max-width:360px){
  .home-title{font-size:38px}
  .setup-q,.lead-h2{font-size:26px}
  .prompt{font-size:30px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}