/* 학생 수업 방 (/r/) — assets/lab.css 변수를 쓴다 */
.state { min-height: 22px; font-size: 14.5px; }
.state.ok { color: var(--c-ok); font-weight: 500; }
.state.no { color: var(--c-bad); }

.find-card, .join-card { display: grid; gap: 14px; max-width: 720px; width: 100%; margin: 0 auto; }
.find-grid { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.find-grid input { font-family: var(--f-mono); font-size: 18px; letter-spacing: 1px; text-transform: uppercase; }

.join-head { display: flex; align-items: center; gap: 16px; min-width: 0; }
.join-head > div:last-child { min-width: 0; }
.join-groups { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(76px, 1fr)); }
.join-group { flex-direction: column; gap: 0; min-height: 64px; padding: 6px; }
.join-group b { font-family: var(--f-mono); font-size: 24px; line-height: 1.1; }
.join-group span { font-size: 12.5px; color: var(--c-muted); }
.join-group.on span { color: var(--c-primary-d); }
.join-card input#joinName { font-size: 18px; }
.join-go { min-width: 200px; }
.join-memo { white-space: pre-wrap; }

.room-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px;
  padding: 8px 12px; background: var(--c-primary-l); border: 1px solid #b9dde8; border-radius: 12px; min-width: 0;
}
.rb-who { display: inline-flex; align-items: center; gap: 6px; font-size: 16px; color: var(--c-primary-d); min-width: 0; }
.rb-codes { font-family: var(--f-mono); font-size: 13.5px; color: var(--c-muted); }
.rb-q { font-size: 13.5px; color: var(--c-accent-d); font-weight: 500; }
/* 지능형 과학실 ON 전송 상태 칩 — 작게, 실험을 가리지 않게 */
.rb-scion {
  display: inline-flex; align-items: center; gap: 4px; max-width: 100%; min-width: 0;
  padding: 2px 10px; border-radius: 99px; font-size: 13px; font-weight: 500; line-height: 1.5;
  background: #eef2f4; color: var(--c-muted); overflow-wrap: anywhere; word-break: keep-all;
}
.rb-scion.ok { background: var(--c-ok-l); color: var(--c-ok); }
.rb-scion.warn { background: var(--c-accent-l); color: var(--c-accent-d); }
.rb-scion.no { background: var(--c-bad-l); color: var(--c-bad); }
.scion-float {
  position: fixed; right: 12px; z-index: 19; pointer-events: none;
  max-width: min(360px, calc(100vw - 24px)); padding: 3px 10px; border-radius: 99px;
  font-size: 12.5px; font-weight: 500; line-height: 1.5; word-break: keep-all; overflow-wrap: anywhere;
  background: rgba(238, 242, 244, .96); color: var(--c-muted); box-shadow: 0 1px 4px rgba(0, 0, 0, .12);
}
.scion-float.ok { background: rgba(220, 252, 231, .96); color: var(--c-ok); }
.scion-float.warn { background: rgba(255, 247, 230, .96); color: var(--c-accent-d); }
.scion-float.no { background: rgba(254, 226, 226, .96); color: var(--c-bad); }
.rb-change { margin-left: auto; min-height: 36px; padding: 4px 10px; font-size: 14px; }

.room-submit {
  display: grid; gap: 8px; padding: 16px; border: 2px solid var(--c-primary); border-radius: 12px; background: #f3fafc;
}
.room-submit h4 { font-size: 17px; font-weight: 700; color: var(--c-primary-d); border: 0; padding: 0; margin: 0; }
.rs-btn { min-width: 220px; font-size: 17px; min-height: 52px; }
.rs-queue { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 8px 12px; border-radius: 10px; background: var(--c-accent-l); color: #7c4a06; font-size: 14px; }
.rs-queue .btn { min-height: 38px; }

.legal-foot { text-align: center; font-size: 13px; color: var(--c-muted); padding: 8px 16px 28px; display: grid; gap: 2px; }
.legal-foot a { color: var(--c-muted); }

@media (max-width: 767px) {
  .find-grid { grid-template-columns: minmax(0, 1fr); }
  .join-head .exp-icon { width: 56px; height: 56px; font-size: 30px; }
  .join-groups { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .rs-btn, .join-go { width: 100%; }
  .rb-change { margin-left: 0; }
}