:root{--green:#00B050;--orange:#FFC000;--ink:#063e35;--muted:#687570;--paper:#fffef9;--bg:#f4f5ee;--line:#d8e4de;--shadow:0 14px 36px rgba(3,47,39,.12)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg)}
body{background-image:radial-gradient(circle at 94% 0,rgba(0,176,80,.13),transparent 28%)}button,input,textarea,select{font:inherit}button{cursor:pointer}.command-busy button{pointer-events:none;cursor:progress;opacity:.68}.hidden{display:none!important}
.topbar{position:sticky;top:0;z-index:20;padding:12px 3vw;background:rgba(244,245,238,.94);backdrop-filter:blur(12px);display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line)}.brand{font-weight:850;color:var(--green)}.status{font-size:13px;color:var(--muted)}.status::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--orange);margin-right:6px}.status.online::before{background:var(--green)}.status.compatibility::before{background:var(--orange)}
.host-controls{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.host-controls button,.ghost{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 11px;color:var(--ink);font-weight:700;font-size:13px}.primary{border:0;background:var(--green);color:#fff;border-radius:10px;padding:12px 18px;font-weight:800}.orange{background:var(--orange);color:#2c2500}.danger{background:#fff0ed;color:#a5321e;border:1px solid #ffb5a5}.shell{max-width:1500px;margin:auto;padding:28px 4vw 60px}.login{max-width:520px;margin:10vh auto;background:#fff;border-radius:20px;padding:30px;border-top:8px solid var(--green);box-shadow:var(--shadow)}h1{font-size:clamp(36px,5vw,70px);line-height:1.02;letter-spacing:-.04em;margin:8px 0 18px}.eyebrow{color:var(--green);font-size:13px;font-weight:850;letter-spacing:.09em;text-transform:uppercase}.lede{font-size:19px;line-height:1.5;color:var(--muted)}
label{display:block;font-weight:750;margin:14px 0 5px}input,textarea,select{width:100%;padding:11px;border:1px solid #c8d8d1;border-radius:9px;background:#fff}textarea{min-height:84px;resize:vertical}.error{color:#aa2d1c;min-height:21px}.saved{color:var(--green);font-size:12px;min-height:18px}
.progress{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-bottom:28px}.progress button{border:0;border-top:4px solid #d7dfda;padding:8px 2px;background:transparent;text-align:left;color:#7b8581;font-weight:800;font-size:12px}.progress button.active{border-color:var(--green);color:var(--green)}
.screen{display:none}.screen.active{display:block}.head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.head h1{font-size:clamp(34px,4vw,58px);margin:5px 0}.head p{max-width:540px;color:var(--muted);line-height:1.45}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.card{background:#fff;border:1px solid var(--line);border-top:7px solid var(--green);border-radius:16px;padding:20px;box-shadow:var(--shadow)}.card:nth-child(even){transform:rotate(.25deg)}.card.orange-top{border-top-color:var(--orange)}.metric{font-size:48px;color:var(--green);font-weight:850}.tag{display:inline-flex;padding:4px 9px;background:#e9f8ef;color:var(--green);border-radius:99px;font-size:12px;font-weight:850}.tag.orange{background:#fff3bf;color:#765800}.card h2,.card h3{margin:8px 0}.card p{color:var(--muted);line-height:1.45}.tip{background:#fff7d6;border:1px solid #efd269;padding:14px 17px;border-radius:12px;margin:16px 0;color:#594600}
.deck{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.playing{aspect-ratio:.72;border:0;border-radius:17px;border-top:8px solid var(--green);background:#fff;box-shadow:var(--shadow);font:850 clamp(36px,5vw,70px) Georgia;color:var(--ink)}.playing:disabled{opacity:.25}.playing:hover:not(:disabled){transform:translateY(-6px)}.queue{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.queue span{padding:8px 11px;background:#fff;border:1px solid var(--line);border-radius:9px}.queue .done{background:#e9f8ef;color:var(--green)}
.assignment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.assignment-card{min-height:155px;background:#fff;border:1px solid var(--line);border-top:7px solid var(--green);border-radius:15px;padding:16px;box-shadow:var(--shadow)}.assignment-card h3{font-size:22px;margin:12px 0 7px}.assignment-card p{font-size:14px;line-height:1.45;color:var(--muted)}.assignment-card.open-topic{border-top-color:var(--orange);background:#fffaf0}.voice-stack{margin:12px 0}.voice-stack .voice{padding:8px 10px;font-size:13px;box-shadow:none}.candidate-summary{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-top:1px solid var(--line)}.candidate-summary strong{font-size:11px;color:var(--green);white-space:nowrap}.muted{color:var(--muted)}.subhead{margin-top:28px}
.timer-panel{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#073d34;color:#fff;border-radius:16px;padding:20px 24px}.timer{font-size:66px;font-weight:850;font-variant-numeric:tabular-nums}.timer-actions{display:flex;gap:8px}.timer-actions button{padding:10px 14px;border:0;border-radius:9px;font-weight:800}.group-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.group-card{background:#fff;border:1px solid var(--line);border-left:6px solid var(--green);border-radius:13px;padding:17px}.group-card strong{font-size:20px}.move{font-size:19px;font-weight:750;line-height:1.4}.rank{display:inline-flex;width:44px;height:44px;border-radius:50%;align-items:center;justify-content:center;background:var(--orange);font-weight:900}.action-row{display:grid;grid-template-columns:55px 1fr auto;gap:15px;align-items:center;padding:17px;background:#fff;border:1px solid var(--line);border-radius:13px;margin:10px 0}.vote{font-size:28px;color:var(--green);font-weight:900;text-align:center}.voice{padding:12px 15px;background:#fff;border-left:4px solid var(--orange);margin:9px 0;border-radius:0 9px 9px 0}.voice small{color:var(--muted)}
.participant{max-width:680px;margin:auto;padding:22px 17px 70px}.participant h1{font-size:38px}.task{background:#fff;border:1px solid var(--line);border-top:7px solid var(--green);border-radius:17px;padding:21px;box-shadow:var(--shadow)}.group-pills{display:grid;gap:8px}.group-pills label{margin:0;padding:11px;background:#fff;border:1px solid var(--line);border-radius:9px}.group-pills input{width:auto;margin-right:8px}.vote-card{border:1px solid var(--line);border-radius:12px;padding:14px;margin:9px 0}.vote-card button{width:100%;margin-top:9px}.vote-card button.selected{background:var(--orange);color:#282000}.waiting{text-align:center;padding:42px 18px;color:var(--muted)}
.section-title{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:8px}.section-title span,.microcopy{font-size:13px;color:var(--muted);line-height:1.45}.voice-composer,.related-voices,.candidate-panel{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}.voice-composer .primary{width:100%;margin-top:14px}.inline-action{margin-top:8px}.candidate-add{display:grid;grid-template-columns:1fr auto;gap:8px;margin:10px 0}.candidate-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:11px 0;border-top:1px solid var(--line)}.candidate-actions{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.candidate-actions button{font-size:12px}.candidate-actions button.selected{background:var(--orange);color:#2c2500}.carry-label{display:block;color:var(--green);font-weight:800;margin-top:4px}
.modal{display:none;position:fixed;inset:0;background:rgba(2,30,25,.58);z-index:50;align-items:center;justify-content:center;padding:20px}.modal.open{display:flex}.modal-box{background:var(--paper);border-radius:17px;padding:25px;width:min(620px,96vw);max-height:90vh;overflow:auto}.modal-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:17px}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%,100px);background:#073d34;color:#fff;padding:11px 17px;border-radius:10px;transition:.2s;z-index:80}.toast.show{transform:translate(-50%,0)}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.deck,.assignment-grid{grid-template-columns:repeat(2,1fr)}.progress{display:none}.group-cards{grid-template-columns:1fr}.head{display:block}.action-row{grid-template-columns:45px 1fr}.action-row>div:last-child{grid-column:2}.topbar{align-items:flex-start}.host-controls{max-width:62%}}
@media(max-width:520px){.grid{grid-template-columns:1fr}.deck{grid-template-columns:repeat(2,1fr)}.topbar{flex-direction:column}.host-controls{display:flex;max-width:100%;width:100%;overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;padding-bottom:3px}.host-controls button{flex:0 0 auto;padding:7px 9px;font-size:11px}.timer-panel{display:block}.timer-actions{margin-top:12px}.action-row{grid-template-columns:1fr}.action-row>div:last-child{grid-column:auto}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}