/* Teacher-only lesson-credit screens. Original screens retain their layouts. */
.teacher-locked .sidebar{display:none}
.teacher-locked .workspace{margin-left:0}
.teacher-locked main{max-width:560px;padding:32px 20px}
.teacher-gate{padding:30px;display:grid;gap:20px}
.teacher-gate img{width:170px;height:auto;margin:auto}
.teacher-gate h1{font-size:27px}
.teacher-gate .button{width:100%}
.credit-alerts{display:grid;gap:9px;margin:0 0 28px;padding:18px;background:#fff8e5;border:1px solid #d6ae44;border-radius:8px}
.credit-alerts h2{font-size:17px;margin-bottom:3px}
.credit-alert{display:block;color:#6d4900;padding:7px 10px;border-left:4px solid #c79216;background:#fffdf5;border-radius:3px;font-size:14px}
.credit-alert.empty{color:#a71b1b;border-color:#cb3535;background:#fff0f0;text-align:left;padding:7px 10px}
.credit-alert.debt{color:#fff;border-color:#4d1019;background:#781c2b;font-weight:600}
.credit-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:14px 0}
.credit-actions .button,.credit-history-row>.button{min-height:44px;white-space:normal}
.credit-config-note{color:var(--muted);font-size:14px;margin:16px 0 22px}
.credit-list{display:grid;gap:16px}
.credit-card{border:1px solid var(--line);border-left:6px solid #2e7d5b;border-radius:8px;background:#fff;padding:22px}
.credit-card.warning{border-left-color:#c79216}
.credit-card.empty{border-left-color:#cb3535;padding:22px;text-align:left;display:block}
.credit-card.debt{border-left-color:#781c2b;background:#fff7f8}
.credit-card-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}
.credit-name{font-size:21px;font-weight:600;display:block;color:var(--tarmac)}
.credit-balance{font-size:19px;display:inline-block;background:#e2f1e9;color:#215c42;padding:8px 13px;border-radius:6px;white-space:nowrap}
.credit-balance.warning{color:#725000;background:#fff0bf}
.credit-balance.empty{color:#a71b1b;background:#ffe4e4;padding:8px 13px;text-align:left;display:inline-block}
.credit-balance.debt{background:#781c2b;color:#fff}
.credit-debt-label{margin:9px 0 0;color:#781c2b;font-weight:600}
.credit-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin:20px 0 8px}
.credit-metric{display:grid;gap:5px;min-width:0}
.credit-metric strong{font-size:20px;overflow-wrap:anywhere}
.credit-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.credit-detail-grid .panel-body{padding:0 20px}
.credit-history-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.credit-history-row:last-child{border-bottom:0}
.credit-history-row .credit-actions{margin:0}
.credit-excluded{background:#f5f6f8;color:#626a75}
@media(max-width:1100px){.credit-detail-grid{grid-template-columns:1fr}.credit-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:600px){
  .teacher-locked main{padding:20px 14px}.teacher-gate{padding:22px}
  .credit-card,.credit-card.empty{padding:17px}.credit-card-heading{align-items:flex-start;flex-direction:column;gap:10px}
  .credit-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.credit-metric strong{font-size:19px}
  .credit-actions{gap:8px}.credit-actions .button{flex:1 1 145px}.credit-history-row{flex-wrap:wrap}.credit-history-row>div{min-width:0}
  .credit-alerts{padding:13px}.credit-alert{font-size:13px}.credit-name{font-size:20px}
}