:root{
  --navy:#071b4d;
  --blue:#0d4fb3;
  --blue-2:#1e73d8;
  --green:#258b1b;
  --green-2:#55ae25;
  --gold:#f3b41b;
  --cream:#f6f8fc;
  --white:#ffffff;
  --ink:#10213f;
  --muted:#60708b;
  --border:#dce4f1;
  --soft:#eef4ff;
  --success:#1d9d53;
  --danger:#c73f50;
  --shadow:0 18px 55px rgba(9,35,82,.12);
}
*{box-sizing:border-box}
html{min-height:100%;background:var(--cream)}
body{
  margin:0;
  min-height:100%;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgba(30,115,216,.12), transparent 28rem),
    radial-gradient(circle at 92% 15%, rgba(85,174,37,.10), transparent 27rem),
    linear-gradient(180deg,#f9fbff 0%,#f2f6fc 100%);
}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer}
button:disabled{opacity:.48;cursor:not-allowed;filter:saturate(.65)}
.page-shell{max-width:1220px;margin:0 auto;padding:22px 24px 26px}
.wide-shell{max-width:1440px}
.site-header{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:10px 0 20px;
}
.institution{display:flex;align-items:center;gap:12px;min-width:0}
.institution img{width:64px;height:64px;object-fit:contain;background:#fff;border-radius:14px;padding:4px;border:1px solid var(--border)}
.institution div{display:flex;flex-direction:column;gap:2px;min-width:0}
.institution strong{font-size:16px;color:var(--navy)}
.institution span{font-size:12.5px;color:var(--muted)}
.header-actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap;justify-content:flex-end}
.villaia-chip{
  display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border-radius:999px;
  color:var(--navy);background:#fff;border:1px solid var(--border);font-size:12px;font-weight:800;box-shadow:0 7px 24px rgba(10,43,98,.06)
}
.bot-dot{color:var(--green);font-size:18px;line-height:0}
.hero{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);align-items:center;
  min-height:510px;overflow:hidden;border-radius:32px;padding:48px 54px;
  background:
    radial-gradient(circle at 85% 10%, rgba(255,255,255,.22), transparent 15rem),
    linear-gradient(135deg,var(--navy),#0b3b93 62%,#1461bc);
  color:#fff;box-shadow:var(--shadow);position:relative;
}
.hero::after{content:"";position:absolute;width:290px;height:290px;border:42px solid rgba(255,255,255,.045);border-radius:50%;right:-75px;bottom:-100px}
.hero-copy{position:relative;z-index:2;max-width:650px}
.eyebrow,.section-label{font-size:11.5px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}
.eyebrow{color:#bde8ff;margin-bottom:13px}
.hero h1{font-size:clamp(42px,6vw,78px);line-height:.94;margin:0;letter-spacing:-.045em;max-width:690px}
.hero h1 span{color:#b7ef61}
.hero-topic{font-size:21px;margin:18px 0 0;color:#eaf4ff}
.hero-description{font-size:16px;line-height:1.65;color:#ccddf5;max-width:610px;margin:16px 0 0}
.hero-badges{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
.hero-badges span{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.17);font-size:12px;color:#eef7ff}
.hero-visual{position:relative;z-index:1;display:flex;justify-content:center;align-items:center;align-self:stretch}
.hero-visual img{width:min(100%,500px);max-height:455px;object-fit:cover;object-position:center;border-radius:26px;border:1px solid rgba(255,255,255,.26);box-shadow:0 24px 60px rgba(0,0,0,.25)}
.action-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-top:20px}
.panel{background:rgba(255,255,255,.94);border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:0 10px 35px rgba(14,46,94,.07)}
.panel h1,.panel h2,.panel p{margin-top:0}
.panel h2{font-size:21px;margin-bottom:7px;color:var(--navy)}
.panel p{color:var(--muted);line-height:1.55}
.panel-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:16px;background:var(--soft);font-size:25px;margin-bottom:15px}
.section-label{color:var(--green);margin-bottom:7px}
.join-fields{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;margin-top:18px;align-items:end}
label span,.field-caption{display:block;font-size:12px;font-weight:750;color:var(--muted);margin:0 0 6px}
input,select{
  width:100%;border:1px solid #cfd9e8;border-radius:13px;background:#fff;color:var(--ink);
  padding:12px 13px;outline:none;transition:border-color .18s,box-shadow .18s;
}
input:focus,select:focus{border-color:var(--blue-2);box-shadow:0 0 0 4px rgba(30,115,216,.12)}
button,.soft-button,.text-link{
  border-radius:13px;border:1px solid #cfd9e8;background:#fff;color:var(--navy);padding:11px 14px;font-weight:800;
  transition:transform .15s,box-shadow .15s,background .15s;
}
button:hover,.soft-button:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(11,55,119,.10)}
.primary{border-color:transparent;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff}
.success-button{border-color:transparent;background:linear-gradient(135deg,#16834a,#2eb868);color:#fff}
.danger-button{border-color:#efc6ce;background:#fff7f8;color:var(--danger)}
.big-action{padding:13px 18px;white-space:nowrap}
.host-panel{display:flex;flex-direction:column}
.host-panel .big-action{margin-top:auto;width:100%}
.text-link{border:0;padding:12px 0 0;background:transparent;font-size:13px;color:var(--blue);box-shadow:none}
.hint{margin-top:12px;font-size:12px;color:var(--muted)}
.site-footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 4px 0;color:var(--muted);font-size:12px}
.host-layout{display:grid;grid-template-columns:minmax(0,1.58fr) minmax(330px,.72fr);gap:18px}
.side-stack{display:grid;gap:18px;align-content:start}
.control-top{display:flex;justify-content:space-between;gap:15px;align-items:flex-start}
.host-title{font-size:28px;margin:0;color:var(--navy)}
.host-title span{color:var(--green)}
.mini-logo{width:68px;height:68px;object-fit:contain}
.room-box{display:grid;grid-template-columns:.65fr 1.35fr;gap:18px;padding:20px;margin-top:20px;border-radius:20px;background:linear-gradient(135deg,#f3f7ff,#f8fbff);border:1px solid var(--border)}
.bigcode{font-size:34px;letter-spacing:.12em;font-weight:950;color:var(--navy);line-height:1}
.share-block{min-width:0}
.button-row,.control-toolbar{display:flex;gap:9px;flex-wrap:wrap;align-items:end}
.link-preview{font-size:11px;color:var(--muted);word-break:break-all;margin-top:9px}
.control-toolbar{margin-top:16px;padding:15px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.select-control{min-width:205px}
.select-control select{padding:10px 12px}
.status-strip,.player-status{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}
.status-strip div,.player-status div{border:1px solid var(--border);background:#f8fbff;border-radius:15px;padding:11px 13px;min-width:0}
.status-strip span,.player-status span{display:block;font-size:11px;color:var(--muted);margin-bottom:3px;text-transform:uppercase;letter-spacing:.06em}
.status-strip strong,.player-status strong{font-size:16px;color:var(--navy);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.question-stage{margin-top:18px;border-radius:20px;background:linear-gradient(180deg,#fbfdff,#f5f8fd);border:1px solid var(--border);padding:22px;min-height:230px}
.empty-state{display:grid;place-items:center;min-height:180px;color:var(--muted)}
.question{font-size:21px;line-height:1.42;color:var(--navy)}
.question-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:13px}
.meta-pill{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:7px 10px;font-size:12px;font-weight:800;background:#eaf2ff;color:var(--navy)}
.options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:15px}
.option{
  width:100%;text-align:left;padding:14px 15px;border-radius:15px;border:1px solid #d6e0ee;background:#fff;color:var(--ink);line-height:1.45;
  box-shadow:0 5px 18px rgba(14,46,94,.04)
}
button.option:hover:not(:disabled){border-color:#9eb8df;background:#f7faff}
.option strong{display:inline-grid;place-items:center;width:29px;height:29px;margin-right:7px;border-radius:9px;background:#eaf2ff;color:var(--blue);font-size:13px}
.option.correct{border-color:#8ad6a8;background:#f0fbf4}
.option.correct strong{background:#d7f4e1;color:#13733e}
.option.wrong{border-color:#efabb7;background:#fff3f5}
.option.wrong strong{background:#fde0e6;color:#ac2f43}
.explanation{margin-top:15px;padding:14px;border-left:4px solid var(--green);background:#f2fbf4;border-radius:0 12px 12px 0;color:#39566b;line-height:1.55}
.muted{color:var(--muted);font-size:13px}
.barwrap{display:grid;gap:13px;margin-top:18px}
.answer-stat{padding:9px 0}
.answer-stat-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px;font-size:13px}
.answer-stat-head b{display:grid;place-items:center;width:28px;height:28px;border-radius:9px;background:#eaf2ff;color:var(--blue)}
.answer-stat-head span{font-weight:900;color:var(--navy)}
.bar{height:11px;border-radius:999px;background:#edf1f7;overflow:hidden}
.bar>div{height:100%;width:0%;border-radius:inherit;transition:width .28s ease;background:linear-gradient(90deg,var(--blue),#5aa7f0)}
.answer-b .bar>div{background:linear-gradient(90deg,#258b1b,#6eba3d)}
.answer-c .bar>div{background:linear-gradient(90deg,#d18a0d,#f3bd3e)}
.answer-d .bar>div{background:linear-gradient(90deg,#7f54b3,#a982cf)}
.table{width:100%;border-collapse:collapse;font-size:13px;margin-top:13px}
.table th,.table td{padding:10px 8px;border-bottom:1px solid var(--border)}
.table th{text-align:left;color:var(--muted);font-weight:750;font-size:11px;text-transform:uppercase;letter-spacing:.06em}
.table .right{text-align:right}
.player-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(290px,.5fr);gap:18px}
.player-status{grid-template-columns:repeat(5,1fr);margin-top:0}
.timer-card{background:#fff9e9!important;border-color:#f2d890!important}
.player-stage{min-height:420px}
.villaia-guide{overflow:hidden}
.villaia-guide img{width:100%;height:200px;object-fit:cover;border-radius:17px;margin-bottom:17px;object-position:center 42%}
.villaia-guide p{margin-bottom:0}
.rules-list{padding-left:19px;margin:8px 0 0;color:var(--muted);line-height:1.65;font-size:13px}
.rules-list li+li{margin-top:5px}
.game-message{display:flex;align-items:center;gap:9px;padding:10px 12px;border-radius:13px;background:#eaf2ff;color:var(--navy);font-size:13px;font-weight:800}
.game-message.good{background:#ebf9f0;color:#13733e}
.game-message.bad{background:#fff0f3;color:#a62e42}
.result-summary{font-size:13px;color:var(--muted);margin-top:13px}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);z-index:1000;background:var(--navy);color:#fff;border-radius:999px;padding:11px 15px;box-shadow:0 16px 38px rgba(7,27,77,.28);display:none;font-size:13px}
.config-warning{padding:16px;border:1px solid #efc2ca;background:#fff5f7;color:#9f2d41;border-radius:15px;line-height:1.55}
@media (max-width:1000px){
  .hero{grid-template-columns:1fr;padding:40px;min-height:0}
  .hero-visual{margin-top:26px}.hero-visual img{max-height:390px}
  .action-grid,.host-layout,.player-layout{grid-template-columns:1fr}
  .join-fields{grid-template-columns:1fr 1fr}.join-fields .big-action{grid-column:1/-1}
}
@media (max-width:700px){
  .page-shell{padding:13px}.site-header{align-items:flex-start}.institution img{width:52px;height:52px}.institution strong{font-size:14px}
  .villaia-chip{display:none}.hero{padding:30px 22px;border-radius:24px}.hero h1{font-size:44px}.hero-topic{font-size:18px}
  .action-grid{gap:13px}.panel{padding:18px;border-radius:20px}.join-fields{grid-template-columns:1fr}
  .room-box{grid-template-columns:1fr}.status-strip{grid-template-columns:1fr 1fr}.player-status{grid-template-columns:1fr 1fr}.player-status .timer-card{grid-column:1/-1}
  .options{grid-template-columns:1fr}.question{font-size:18px}.header-actions{gap:6px}.danger-button{font-size:12px;padding:9px 10px}
  .site-footer{flex-direction:column}.hero-visual img{height:auto;max-height:none}.control-toolbar>*{flex:1 1 150px}
}