.iccl-classroom{--navy:#10192c;--panel:#17243d;--blue:#2c7df0;--cyan:#46d4ff;--muted:#aab8d0;font-family:inherit;background:radial-gradient(circle at 15% 0,#1d3c67 0,transparent 35%),var(--navy);color:#fff;border-radius:24px;box-shadow:0 24px 70px rgba(7,18,38,.25);overflow:hidden;max-width:1500px;margin:24px auto}
.iccl-classroom *{box-sizing:border-box}.iccl-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 28px;border-bottom:1px solid rgba(255,255,255,.09)}.iccl-header h2{color:#fff;font-size:24px;line-height:1.5;margin:8px 0 0}
.iccl-live-badge{display:inline-flex;align-items:center;gap:8px;color:#ffced2;font-size:13px;font-weight:700}.iccl-live-badge i,.iccl-presence-dot{width:9px;height:9px;background:#ff3b4f;border-radius:50%;box-shadow:0 0 0 5px rgba(255,59,79,.12);animation:iccl-pulse 1.6s infinite}
.iccl-clock{text-align:left;min-width:170px}.iccl-clock span{display:block;color:var(--muted);font-size:12px}.iccl-clock strong{display:block;color:var(--cyan);font-size:25px;direction:ltr;margin-top:4px}
.iccl-layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(300px,1fr);min-height:600px}.iccl-stage{position:relative;background:#050a13;min-height:560px;display:flex;align-items:center;justify-content:center}.iccl-player{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.iccl-player iframe,.iccl-player video{width:100%;height:100%;border:0;background:#000;object-fit:contain}.iccl-player-error{padding:30px;color:#ffced2}
.iccl-player-cover{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px;background:radial-gradient(circle at center,#213c65,#080e19 72%);transition:opacity .3s,visibility .3s}.iccl-player-cover.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.iccl-player-cover.is-ended{background:radial-gradient(circle at center,#26354b,#080e19 72%)}.iccl-cover-icon{display:grid;place-items:center;width:74px;height:74px;border-radius:50%;margin-bottom:18px;padding-right:4px;color:#fff;background:linear-gradient(145deg,var(--cyan),var(--blue));box-shadow:0 15px 45px rgba(44,125,240,.35);font-size:26px}.iccl-player-cover h3{color:#fff;font-size:24px;margin:0 0 8px}.iccl-player-cover p{color:var(--muted);margin:0}
.iccl-sidebar{display:flex;flex-direction:column;background:rgba(23,36,61,.94);border-right:1px solid rgba(255,255,255,.08);min-width:0}.iccl-tabs{display:grid;grid-template-columns:1fr 1fr;padding:8px;border-bottom:1px solid rgba(255,255,255,.08)}.iccl-tabs button{appearance:none;border:0;background:transparent;color:var(--muted);font:inherit;font-weight:700;padding:13px 8px;border-radius:10px;cursor:pointer}.iccl-tabs button.is-active{background:rgba(70,212,255,.1);color:#fff}.iccl-online-count{display:inline-grid;place-items:center;min-width:22px;height:22px;margin-right:5px;padding:0 6px;background:rgba(70,212,255,.16);color:var(--cyan);border-radius:20px;font-size:12px}
.iccl-panel{display:none;flex:1;min-height:0}.iccl-panel.is-active{display:flex;flex-direction:column}.iccl-messages{flex:1;max-height:465px;overflow:auto;padding:18px}.iccl-message{position:relative;margin:0 0 12px;padding:11px 13px 20px;background:rgba(255,255,255,.065);border:1px solid rgba(255,255,255,.055);border-radius:14px}.iccl-message.is-mine{background:rgba(44,125,240,.16);border-color:rgba(70,212,255,.14)}.iccl-message strong{display:block;color:#7cddff;font-size:12px;margin-bottom:4px}.iccl-message p{color:#fff;line-height:1.8;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.iccl-message time{position:absolute;bottom:6px;left:9px;color:#7f90aa;font-size:10px;direction:ltr}.iccl-empty{color:var(--muted);text-align:center;margin:70px 0}
.iccl-message-form{display:flex;align-items:flex-end;gap:8px;padding:12px;border-top:1px solid rgba(255,255,255,.08)}.iccl-message-form textarea{width:100%;resize:none;border:1px solid rgba(255,255,255,.13);border-radius:12px;background:#0f1b30;color:#fff;font:inherit;font-size:13px;line-height:1.7;padding:10px 12px;outline:none}.iccl-message-form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(70,212,255,.1)}.iccl-message-form button{border:0;border-radius:12px;background:linear-gradient(145deg,#35bfea,var(--blue));color:#fff;font:inherit;font-weight:700;padding:12px 16px;cursor:pointer}.iccl-message-form button:disabled{opacity:.55;cursor:wait}.iccl-form-error{min-height:19px;color:#ff9aa4;font-size:11px;margin:-7px 14px 8px}
.iccl-presence-title{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid rgba(255,255,255,.07)}.iccl-presence-title strong{font-size:14px}.iccl-presence-dot{background:#39d98a;box-shadow:0 0 0 5px rgba(57,217,138,.1)}.iccl-user-list{list-style:none!important;margin:0!important;padding:10px 18px 18px!important;max-height:495px;overflow:auto}.iccl-user-list li{display:flex;align-items:center;gap:10px;padding:9px 0;color:#edf4ff;font-size:14px;border-bottom:1px solid rgba(255,255,255,.055)}.iccl-user-list li>span:first-child{display:grid;place-items:center;width:34px;height:34px;flex:0 0 34px;border-radius:50%;background:linear-gradient(145deg,#294872,#1b2e4d);color:var(--cyan);font-weight:800}
.iccl-login-required{padding:18px;border-radius:12px;background:#fff4e5;color:#6f4500;text-align:center}.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@keyframes iccl-pulse{50%{opacity:.5;transform:scale(.88)}}
@media(max-width:900px){.iccl-classroom{border-radius:16px}.iccl-layout{grid-template-columns:1fr}.iccl-stage{min-height:auto;aspect-ratio:16/9}.iccl-sidebar{min-height:440px;border-right:0;border-top:1px solid rgba(255,255,255,.08)}.iccl-messages{max-height:370px}}
@media(max-width:560px){.iccl-header{align-items:flex-start;padding:18px;gap:12px}.iccl-header h2{font-size:18px}.iccl-clock{min-width:125px}.iccl-clock strong{font-size:19px}.iccl-stage{aspect-ratio:16/10}.iccl-player-cover h3{font-size:19px}.iccl-player-cover p{font-size:12px}.iccl-cover-icon{width:58px;height:58px;font-size:20px}.iccl-message-form{position:sticky;bottom:0;background:var(--panel)}}