:root{
  --bg:#f4f4f2; --card:#ffffff; --ink:#0e0e0e; --mut:#6b6b6b;
  --line:#e4e4e0; --lime:#c8f23f; --lime-d:#b4de2a;
  --blue:#0ea5e9; --purple:#8b5cf6; --green:#10b981; --amber:#f59e0b; --red:#ef4444;
  --shadow:0 6px 24px rgba(0,0,0,.08);
  --font:'IBM Plex Sans','Inter',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
.hidden{display:none !important}
button{font-family:inherit;cursor:pointer;border:none;font-weight:600}
input,textarea{font-family:inherit}

/* JOIN */
.join{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;
  background:radial-gradient(1200px 600px at 70% -10%,#e9f7bf 0%,var(--bg) 55%)}
.join-card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);
  max-width:460px;width:100%;padding:34px 30px}
.brand{font-size:13px;letter-spacing:.14em;border:1.5px solid var(--ink);display:inline-block;padding:3px 8px;border-radius:4px}
.brand b{font-weight:800}
.kicker{margin-top:22px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);
  background:var(--lime);color:#1a1a00;display:inline-block;padding:3px 9px;border-radius:5px}
.join-card h1{font-size:26px;line-height:1.15;margin:14px 0 6px;letter-spacing:-.02em}
.sub{color:var(--mut);margin:0 0 20px;font-size:14px}
.join-card label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.join-card input{width:100%;padding:14px 15px;font-size:16px;border:1.5px solid var(--line);border-radius:12px;outline:none}
.join-card input:focus{border-color:var(--ink)}
#joinBtn{width:100%;margin-top:14px;padding:15px;font-size:16px;background:var(--ink);color:#fff;border-radius:12px}
#joinBtn:hover{background:#000}
.fine{font-size:12px;color:var(--mut);margin-top:16px;line-height:1.5}

/* APP shell */
.app{min-height:100%;display:flex;flex-direction:column}
.bar{position:sticky;top:0;z-index:30;display:flex;justify-content:space-between;align-items:center;
  padding:10px 16px;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar-left{display:flex;align-items:center;gap:10px;min-width:0}
.phase{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#1a1a00;
  background:var(--lime);padding:3px 9px;border-radius:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.time{font-size:13px;color:var(--mut);font-weight:600}
.bar-right{display:flex;align-items:center;gap:10px}
.timer{font-variant-numeric:tabular-nums;font-weight:700;font-size:15px;background:var(--ink);color:#fff;
  padding:5px 12px;border-radius:8px}
.timer.warn{background:var(--red);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.6}}
.dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(16,185,129,.5);animation:live 2s infinite}
@keyframes live{0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)}70%{box-shadow:0 0 0 7px rgba(16,185,129,0)}}
.ppl{font-size:13px;font-weight:700;color:var(--mut)}
.ghost{background:transparent;border:1px solid var(--line);border-radius:8px;padding:5px 10px;color:var(--ink)}

/* STAGE */
.stage{flex:1;max-width:1000px;width:100%;margin:0 auto;padding:22px 18px 90px}
.st-head{margin-bottom:16px}
.st-head h2{font-size:26px;line-height:1.12;letter-spacing:-.02em;margin:6px 0 8px}
.st-head .p{color:var(--mut);font-size:15px;line-height:1.5;margin:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}

/* COVER */
.cover{text-align:center;padding:40px 24px}
.cover .kicker{margin-top:0}
.cover h1{font-size:34px;line-height:1.1;letter-spacing:-.02em;margin:18px auto 10px;max-width:720px}
.cover .sub{font-size:16px}
.cover .note{max-width:560px;margin:20px auto 0;color:var(--mut);font-size:14px;line-height:1.6}

/* SLIDE */
.slidewrap{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.slidewrap img{width:100%;display:block;cursor:zoom-in}
.slide-tools{display:flex;justify-content:flex-end;gap:8px;margin-top:10px}
.slide-tools a,.slide-tools button{font-size:13px;color:var(--mut);text-decoration:none;background:transparent;border:1px solid var(--line);border-radius:8px;padding:6px 11px}
.zoomlay{position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:60;display:flex;align-items:center;justify-content:center;padding:12px;cursor:zoom-out}
.zoomlay img{max-width:100%;max-height:100%}

/* AGENDA */
.agenda{padding:8px 0}
.arow{display:grid;grid-template-columns:64px 1fr auto;gap:12px;align-items:center;padding:12px 16px;border-bottom:1px solid var(--line)}
.arow:last-child{border-bottom:none}
.arow.brk{background:#faf9f4}
.arow .at{font-weight:800;font-variant-numeric:tabular-nums}
.arow .atitle{font-weight:600}
.arow.brk .atitle{color:var(--mut)}
.arow.now{background:#f3fbd8}
.arow.now .at{color:#000}
.atag{font-size:11px;font-weight:700;color:var(--mut);border:1px solid var(--line);border-radius:20px;padding:3px 10px;white-space:nowrap}
.arow.now .atag{background:var(--lime);border-color:var(--lime);color:#1a1a00}

/* INPUT ROW */
.inrow{display:flex;gap:8px;margin-top:14px}
.inrow input,.inrow textarea{flex:1;padding:13px 14px;font-size:15px;border:1.5px solid var(--line);border-radius:12px;outline:none;background:#fff}
.inrow input:focus,.inrow textarea:focus{border-color:var(--ink)}
.inrow button,.send{background:var(--ink);color:#fff;border-radius:12px;padding:0 18px;font-size:15px}
.send{padding:13px 18px}
.hint{color:var(--mut);font-size:13px;margin:8px 2px 0;line-height:1.5}

/* WORDCLOUD */
.cloud{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;justify-content:center;padding:26px 18px;min-height:160px}
.cloud span{line-height:1;font-weight:700;transition:.3s}
.cloud .empty{color:var(--mut);font-weight:500;font-size:15px}

/* BOARD */
.cols{display:grid;gap:14px;margin-top:16px}
.col{background:#faf9f4;border:1px solid var(--line);border-radius:16px;padding:14px;display:flex;flex-direction:column}
.col h4{margin:0 0 10px;font-size:14px;display:flex;align-items:center;gap:8px}
.col h4 .swatch{width:11px;height:11px;border-radius:3px}
.notes{display:flex;flex-direction:column;gap:9px;min-height:40px}
.note{background:#fff;border:1px solid var(--line);border-left:3px solid var(--mut);border-radius:10px;padding:10px 12px;font-size:14px;line-height:1.45;position:relative;word-break:break-word}
.note .who{font-size:11px;color:var(--mut);font-weight:700;margin-top:5px}
.note .del{position:absolute;top:6px;right:8px;color:var(--mut);background:none;border:none;font-size:15px;line-height:1;opacity:.5}
.note .del:hover{opacity:1;color:var(--red)}
.postbar{display:flex;gap:8px;margin-top:10px}
.postbar textarea{flex:1;resize:vertical;min-height:44px;padding:10px 12px;font-size:14px;border:1.5px solid var(--line);border-radius:10px;outline:none}
.postbar textarea:focus{border-color:var(--ink)}
.postbar button{background:var(--ink);color:#fff;border-radius:10px;padding:0 14px}
.brief{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-top:6px}
.brief .case{font-size:14px;line-height:1.55;color:#333;margin:0 0 10px}
.brief ul{margin:0;padding-left:18px}
.brief li{font-size:14px;line-height:1.5;margin-bottom:5px}
.colpick{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 4px}
.colpick button{border:1.5px solid var(--line);background:#fff;border-radius:20px;padding:7px 13px;font-size:13px;color:var(--ink)}
.colpick button.active{border-color:var(--ink);color:#fff}

/* QUIZ */
.quiz-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:12px;box-shadow:var(--shadow)}
.quiz-item .qtext{font-size:15px;line-height:1.45;margin-bottom:11px}
.qbtns{display:flex;gap:9px}
.qbtns button{flex:1;padding:11px;border-radius:11px;border:1.5px solid var(--line);background:#fff;font-size:14px;color:var(--ink)}
.qbtns button.sel-left{background:#fee2e2;border-color:var(--red);color:#991b1b}
.qbtns button.sel-right{background:#dcfce7;border-color:var(--green);color:#065f46}
.qbtns button.correct{outline:3px solid var(--green);outline-offset:1px}
.qbtns button.wrong{outline:3px solid var(--red);outline-offset:1px}
.qstats{display:flex;gap:6px;margin-top:10px;font-size:12px;color:var(--mut)}
.qbar{height:7px;border-radius:4px;background:#eee;overflow:hidden;flex:1;display:flex}
.qbar i{display:block;height:100%}
.qsummary{background:var(--ink);color:#fff;border-radius:14px;padding:14px 16px;font-size:15px;margin-bottom:14px;font-weight:600}

/* SCALE */
.scale{display:flex;flex-direction:column;align-items:center;gap:18px;padding:14px 0}
.scale-btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.scale-btns button{width:58px;height:58px;border-radius:50%;border:2px solid var(--line);background:#fff;font-size:20px;font-weight:800}
.scale-btns button.on{background:var(--lime);border-color:var(--ink);color:#1a1a00}
.scale-labels{display:flex;justify-content:space-between;width:100%;max-width:420px;font-size:12px;color:var(--mut)}
.scale-res{display:flex;gap:10px;align-items:flex-end;height:120px;margin-top:6px}
.scale-res .b{width:44px;background:var(--lime-d);border-radius:8px 8px 0 0;display:flex;align-items:flex-start;justify-content:center;color:#1a1a00;font-weight:800;font-size:13px;padding-top:4px;min-height:4px}
.scale-res .bl{text-align:center;font-size:12px;color:var(--mut);margin-top:5px}

/* BREAK */
.brk-card{text-align:center;padding:50px 24px}
.brk-card .big{font-size:56px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.brk-card h2{font-size:30px;margin:6px 0 8px}
.brk-card p{color:var(--mut);font-size:16px;max-width:440px;margin:0 auto;line-height:1.5}
.brk-emoji{font-size:40px}

/* MOD PANEL */
.modpanel{position:fixed;left:0;right:0;bottom:0;z-index:40;background:#111;color:#fff;padding:12px 14px;
  box-shadow:0 -8px 30px rgba(0,0,0,.3)}
.mp-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:8px;justify-content:center}
.mp-row:last-child{margin-bottom:0}
.modpanel button{background:#2a2a2a;color:#fff;border-radius:9px;padding:9px 13px;font-size:13px}
.modpanel button:hover{background:#3a3a3a}
.modpanel .danger{background:#7f1d1d}
.modpanel .ghost{background:transparent;border:1px solid #444}
.mp-pos{font-weight:700;font-size:13px;min-width:130px;text-align:center;color:#c8f23f}
.mp-jump{max-height:96px;overflow:auto}
.mp-jump button{font-size:11px;padding:5px 9px;background:#222}
.mp-jump button.cur{background:var(--lime);color:#000}
.mp-timer button[data-min]{min-width:38px}

.small{font-size:12px;color:var(--mut)}
@media(min-width:640px){
  .cols.c2{grid-template-columns:1fr 1fr}
  .cols.c3{grid-template-columns:1fr 1fr 1fr}
  .st-head h2{font-size:30px}
}