/* Education Platform Custom v1.9.0 — Interactive Classroom */
.epcf-classroom{--epcf-red:#d71920;--epcf-dark:#15171c;--epcf-muted:#6e737d;--epcf-line:#e4e6ea;--epcf-soft:#f7f7f8;width:100%;max-width:1420px;margin:28px auto;padding:0 22px 40px;box-sizing:border-box;color:#17191e;font-family:inherit}.epcf-classroom *{box-sizing:border-box}.epcf-classroom button,.epcf-classroom input{font:inherit}.epcf-classroom-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding:24px 0 20px}.epcf-classroom-kicker{display:block;color:var(--epcf-red);font-size:11px;font-weight:900;letter-spacing:.13em}.epcf-classroom-head h1{margin:5px 0 5px;font-size:clamp(28px,4vw,48px);line-height:1.03;letter-spacing:-.035em}.epcf-classroom-head p{margin:0;color:var(--epcf-muted);font-size:13px}.epcf-room-state{display:inline-flex;align-items:center;padding:9px 12px;border:1px solid #dfe2e7;border-radius:999px;background:#fff;color:#555b66;font-size:11px;font-weight:900;white-space:nowrap}.epcf-room-state.is-live{background:#effbf3;border-color:#cfe8d7;color:#22713b}.epcf-room-state.is-error{background:#fff3f3;border-color:#f0cccc;color:#a22a2a}.epcf-room-state.is-connecting{background:#fff8e9;border-color:#ead9a9;color:#806516}.epcf-classroom-setup,.epcf-classroom-gate{max-width:900px;margin:35px auto;padding:24px;border:1px solid #ebd6a6;border-radius:18px;background:#fff9ea}.epcf-classroom-setup strong,.epcf-classroom-gate strong{font-size:18px}.epcf-classroom-setup p,.epcf-classroom-gate p{margin:6px 0 12px;color:#5d5a51}.epcf-classroom-setup a{color:#a90008;font-weight:800}.epcf-classroom-gate.is-error{border-color:#efc8c8;background:#fff4f4}.epcf-classroom-stage{position:relative;border-radius:24px;background:#0f1115;padding:16px;overflow:hidden;min-height:420px}.epcf-video-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.epcf-video-tile,.epcf-share-stage{position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.12);border-radius:18px;background:#191c22}.epcf-media-slot{position:relative;aspect-ratio:16/10;overflow:hidden;background:#111318}.epcf-live-video{width:100%!important;height:100%!important;display:block;object-fit:cover}.epcf-video-tile.is-local .epcf-live-video{transform:scaleX(-1)}.epcf-share-stage{margin-bottom:14px}.epcf-share-stage .epcf-media-slot{aspect-ratio:16/9}.epcf-share-stage .epcf-live-video{object-fit:contain;background:#08090b}.epcf-video-placeholder{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:10px;color:#bec2ca}.epcf-video-placeholder span{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;background:#292d35;color:#fff;font-size:32px;font-weight:900}.epcf-video-placeholder p{margin:0;font-size:12px}.epcf-video-label{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 13px;color:#fff;background:#181b20}.epcf-video-label strong{font-size:13px}.epcf-video-label span{font-size:10px;color:#aeb4be}.epcf-prejoin{position:absolute;inset:0;display:grid;place-items:center;padding:22px;background:rgba(10,11,14,.78);backdrop-filter:blur(8px);z-index:6}.epcf-prejoin[hidden]{display:none}.epcf-prejoin>div{max-width:480px;text-align:center;color:#fff}.epcf-prejoin>div>span{display:block;font-size:50px}.epcf-prejoin h2{margin:8px 0 8px;font-size:32px}.epcf-prejoin p{margin:0 auto 18px;color:#c5c8cf;line-height:1.6}.epcf-prejoin button{border:0;border-radius:12px;padding:13px 20px;background:var(--epcf-red);color:#fff;font-weight:900;cursor:pointer}.epcf-prejoin button:disabled{opacity:.45;cursor:not-allowed}.epcf-prejoin small{display:block;margin-top:10px;color:#adb2bc}.epcf-engagement-overlay{pointer-events:none;position:absolute;inset:18px;z-index:8;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:10px}.epcf-live-pop{display:flex;align-items:center;gap:12px;max-width:min(90%,520px);padding:12px 16px;border:1px solid rgba(255,255,255,.2);border-radius:18px;background:rgba(255,255,255,.96);box-shadow:0 12px 34px rgba(0,0,0,.28);animation:epcfPopIn .24s ease-out}.epcf-live-pop>span{font-size:36px}.epcf-live-pop strong,.epcf-live-pop small,.epcf-live-pop em{display:block}.epcf-live-pop strong{font-size:14px}.epcf-live-pop small{margin-top:2px;color:#777d86;font-size:10px}.epcf-live-pop em{margin-top:5px;font-size:11px;color:#3d4148;font-style:normal}.epcf-live-pop.is-sticker{padding:16px 20px}.epcf-live-pop.is-sticker>span{font-size:48px}.epcf-live-pop.is-award{border:2px solid #e3bd53;background:#fffaf0}.epcf-live-pop.is-award>span{font-size:60px}.epcf-live-pop.is-leaving{opacity:0;transform:translateY(-10px);transition:.25s ease}@keyframes epcfPopIn{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}.epcf-classroom-controls{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;margin-top:13px;padding:12px;border:1px solid var(--epcf-line);border-radius:16px;background:#fff}.epcf-classroom-controls button{min-height:48px;border:1px solid #dfe2e7;border-radius:12px;padding:8px 14px;background:#fff;color:#252932;font-weight:800;cursor:pointer;display:flex;align-items:center;gap:7px}.epcf-classroom-controls button span{font-size:17px}.epcf-classroom-controls button:hover:not(:disabled){border-color:#b8bec8}.epcf-classroom-controls button.is-off{background:#f3f3f4;color:#777}.epcf-classroom-controls button.is-active{background:#eff5ff;border-color:#b6cef1;color:#235d9c}.epcf-classroom-controls button.is-leave{background:#fff1f1;border-color:#efc9c9;color:#a91c1c}.epcf-classroom-controls button:disabled{opacity:.42;cursor:not-allowed}.epcf-classroom-lower{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px;margin-top:22px}.epcf-classroom-lower main{display:grid;gap:18px}.epcf-classroom-lower aside{display:grid;align-content:start;gap:18px}.epcf-engagement-panel,.epcf-room-info,.epcf-room-awards{border:1px solid var(--epcf-line);border-radius:18px;background:#fff;padding:19px}.epcf-panel-head>span,.epcf-room-info>span,.epcf-room-awards>span{display:block;color:var(--epcf-red);font-size:10px;font-weight:900;letter-spacing:.12em}.epcf-panel-head h2{margin:4px 0 4px;font-size:22px}.epcf-panel-head p{margin:0 0 15px;color:var(--epcf-muted);font-size:12px}.epcf-reaction-row{display:flex;gap:9px;flex-wrap:wrap}.epcf-reaction-row button{width:78px;min-height:72px;border:1px solid #e0e2e7;border-radius:14px;background:#fafafa;cursor:pointer}.epcf-reaction-row button span{display:block;font-size:27px}.epcf-reaction-row button small{display:block;margin-top:4px;font-size:9px;font-weight:800;color:#6c7179}.epcf-sticker-grid,.epcf-award-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.epcf-sticker-grid button,.epcf-award-grid button{min-height:78px;border:1px solid #e0e2e7;border-radius:14px;background:#fafafa;padding:10px;cursor:pointer}.epcf-sticker-grid button span,.epcf-award-grid button span{display:block;font-size:28px}.epcf-sticker-grid button strong,.epcf-award-grid button strong{display:block;margin-top:5px;font-size:11px}.epcf-reaction-row button:hover:not(:disabled),.epcf-sticker-grid button:hover:not(:disabled),.epcf-award-grid button:hover:not(:disabled){border-color:#bbbfc8;background:#fff;transform:translateY(-1px)}.epcf-reaction-row button:disabled,.epcf-sticker-grid button:disabled,.epcf-award-grid button:disabled{opacity:.45;cursor:not-allowed}.epcf-award-reason{display:block;margin:0 0 12px}.epcf-award-reason>span{display:block;font-size:11px;font-weight:800;margin-bottom:6px}.epcf-award-reason input{width:100%;border:1px solid #dcdfe4;border-radius:11px;padding:11px 12px;font-size:16px}.epcf-classroom-inline-status{margin-top:10px;font-size:12px;font-weight:700}.epcf-classroom-inline-status.is-ok{color:#23743c}.epcf-classroom-inline-status.is-error{color:#ae2222}.epcf-room-info h3,.epcf-room-awards h3{margin:5px 0 13px;font-size:18px}.epcf-room-info>div{padding:11px 0;border-top:1px solid #eee}.epcf-room-info small{display:block;color:#777d86;font-size:9px;font-weight:900;letter-spacing:.08em}.epcf-room-info p{margin:4px 0 0;font-size:12px;line-height:1.55}.epcf-room-awards [data-room-awards]{display:grid;gap:9px}.epcf-room-award-item{display:flex;align-items:flex-start;gap:10px;padding:10px;border-radius:12px;background:#faf7ee}.epcf-room-award-item>span{font-size:23px}.epcf-room-award-item p{margin:0;min-width:0}.epcf-room-award-item strong,.epcf-room-award-item small{display:block}.epcf-room-award-item strong{font-size:11px}.epcf-room-award-item small{margin-top:3px;color:#6e6859;font-size:9px;line-height:1.4}.epcf-room-empty-awards{margin:0;color:#858991;font-size:11px}
@media(max-width:900px){.epcf-classroom-lower{grid-template-columns:1fr}.epcf-classroom-lower aside{grid-template-columns:1fr 1fr}.epcf-video-grid{grid-template-columns:1fr}.epcf-media-slot{aspect-ratio:16/9}}
@media(max-width:640px){.epcf-classroom{padding:0 12px 28px;margin-top:10px}.epcf-classroom-head{align-items:flex-start;flex-direction:column}.epcf-classroom-stage{padding:9px;border-radius:18px;min-height:360px}.epcf-classroom-lower aside{grid-template-columns:1fr}.epcf-sticker-grid,.epcf-award-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.epcf-reaction-row button{width:calc(25% - 7px);min-width:62px}.epcf-classroom-controls{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap}.epcf-classroom-controls button{flex:0 0 auto}.epcf-live-pop.is-award>span{font-size:44px}}
@media(prefers-reduced-motion:reduce){.epcf-live-pop,.epcf-reaction-row button,.epcf-sticker-grid button,.epcf-award-grid button{animation:none!important;transition:none!important}}