/* Student-only login and hall; share exam tokens without teacher navigation. */
.student-page .topbar { padding: 18px max(24px,calc((100vw - 1200px)/2)); gap: 20px; }
.student-page .topbar > .brand { padding: 0; width: auto; }
.student-page .topbar > .brand small { line-height: 1.8; }
.student-page .kpis { display: flex; justify-content: flex-end; gap: 8px; }
.student-page .student-shell { width: min(100%,1248px); max-width: 1248px; padding-top: 36px; }
.student-page #loginPane { width: min(100%,520px); margin: 40px auto; }
.student-page #loginPane .hero { text-align: center; margin-bottom: 28px; }
.student-page .hero p { line-height: 1.9; }
.student-page .login-card { padding: 32px; }
.student-page .login-card .field input { font-size: 22px; min-height: 56px; }
.student-page .login-card .joinactions { display: flex; flex-direction: column; align-items: stretch; margin-top: 24px; gap: 12px; }
.student-page .login-card .btn.primary { min-height: 46px; }
.student-page .login-card .hint { line-height: 1.9; font-size: 12px; color: var(--text-mid); margin: 22px 0 0; }
.student-page #loginMsg { font-size: 12px; text-align: center; overflow-wrap: anywhere; }
.student-page .hall-welcome { margin-bottom: 28px; }
.student-page .hall-welcome h1 { font-size: 27px; }
.student-page .hall-section-heading h2 { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 0; }
.student-page #paperCount { font-size: 12px; font-weight: 400; color: var(--text-mid); }
.student-page .hall-toolbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin: 22px 0; }
.student-page .hall-search { display: flex; flex-direction: column; gap: 8px; width: min(100%,360px); font-size: 12px; color: var(--text-mid); }
.student-page .hall-search input { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--panel); font-size: 14px; color: var(--text); }
.student-page #paperSummary { font-size: 12px; margin: 0 0 10px; color: var(--text-mid); }
.student-page .openpapers-l { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.student-page .pubcard { display: flex; flex-direction: column; min-width: 0; padding: 20px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); }
.student-page .paper-card-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.student-page .paper-code { font-size: 12px; letter-spacing: .6px; color: var(--brand-deep); font-weight: 650; font-variant-numeric: tabular-nums; }
.student-page .paper-title { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; min-height: 3.2em; margin: 16px 0 12px; font-size: 16px; line-height: 1.6; overflow-wrap: anywhere; }
.student-page .paper-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--text-mid); font-size: 12px; margin-bottom: 20px; }
.student-page .paper-meta b { font-size: 15px; color: var(--text); margin-right: 3px; font-weight: 600; }
.student-page .pubcard .btn { width: 100%; margin-top: auto; min-height: 40px; }
.student-page .hall-empty { grid-column: 1/-1; text-align: center; padding: 40px 16px; color: var(--text-mid); background: var(--bg-soft); border: 1px dashed var(--border); border-radius: 10px; line-height: 1.9; }
.student-page .hall-pagination { display: flex; justify-content: space-between; gap: 14px; align-items: center; padding-top: 22px; margin-top: 22px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-mid); }
.student-page .hall-page-actions { display: flex; gap: 8px; }
.student-page #hallRecords { max-width: 100%; overflow-x: auto; border-radius: 8px; }
.student-page .rec { width: 100%; border-collapse: collapse; white-space: nowrap; }
.student-page .rec :is(th,td) { padding: 16px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
.student-page .rec th { font-size: 12px; font-weight: 500; color: var(--text-mid); background: var(--bg-soft); }
.student-page .rec tbody tr:last-child td { border-bottom: 0; }
.student-page .record-title { max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 1000px) {
  .student-page .openpapers-l { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 760px) {
  .student-page .topbar { padding: 16px; gap: 12px; }
  .student-page .topbar > .brand { flex: 1; min-width: 200px; }
  .student-page .topbar > .spacer { display: none; }
  .student-page .kpis { flex-wrap: wrap; margin-left: 0; }
  .student-page .student-shell { padding-top: 24px; }
  .student-page #loginPane { margin: 24px auto; }
  .student-page #loginPane .hero h1, .student-page .hall-welcome h1 { font-size: 24px; }
  .student-page .login-card { padding: 24px 20px; }
  .student-page .login-card .field input { font-size: 20px; letter-spacing: 2px; }
  .student-page .hall-welcome { margin-bottom: 22px; }
  .student-page .hall-toolbar { display: block; margin: 18px 0; }
  .student-page .hall-search { width: 100%; }
  .student-page #paperSummary { margin: 12px 0 0; }
  .student-page .openpapers-l { grid-template-columns: minmax(0,1fr); gap: 12px; }
  .student-page .pubcard { padding: 18px; }
  .student-page .paper-title { min-height: 0; margin: 14px 0; }
  .student-page .pubcard .btn { min-height: 44px; }
  .student-page .hall-pagination { flex-wrap: wrap; padding-top: 18px; margin-top: 18px; }
  .student-page .hall-page-actions { margin-left: auto; }
}