:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: #172033;
  background: #f4f6f9;
  line-height: 1.45;
}
* { box-sizing: border-box; }
body { margin: 0; background: #f4f6f9; }
.page { max-width: 1100px; margin: 0 auto; padding: 28px 18px 60px; }
h1 { margin: 0 0 6px; font-size: 30px; }
h2 { margin-top: 0; }
a { color: #315eea; }
.card { background: white; border: 1px solid #e1e5ec; border-radius: 16px; padding: 22px; box-shadow: 0 3px 16px rgba(20,30,50,.05); }
.narrow { max-width: 520px; margin: 50px auto; }
.stack { display: grid; gap: 16px; }
label { font-weight: 650; display: grid; gap: 7px; }
input, select { width: 100%; font: inherit; padding: 12px 13px; border: 1px solid #cbd2dd; border-radius: 10px; background: white; }
button { font: inherit; font-weight: 700; border: 0; border-radius: 10px; padding: 11px 15px; background: #315eea; color: white; cursor: pointer; }
button:hover { filter: brightness(.97); }
button.secondary { background: #edf1f7; color: #24314a; }
button.danger-outline { background: white; color: #b42318; border: 1px solid #f0b7b2; }
.muted { color: #667085; }
.tiny { font-size: 13px; }
.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.teacher-grid { grid-template-columns: 340px 1fr; margin-bottom: 18px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 20px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.back { display: inline-block; margin-bottom: 8px; text-decoration: none; }
.lesson-list { display: grid; gap: 8px; }
.lesson-row { display: flex; justify-content: space-between; gap: 10px; padding: 11px 12px; background: #f7f8fb; border-radius: 10px; text-decoration: none; color: inherit; }
.qr-card { text-align: center; }
.qr { width: 245px; max-width: 100%; image-rendering: crisp-edges; }
.status-card { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.status-badge { padding: 8px 12px; border-radius: 999px; font-weight: 750; background: #eaf8ef; color: #18733b; }
.status-badge.closed { background: #f2f4f7; color: #475467; }
.counter { font-size: 72px; font-weight: 800; letter-spacing: -3px; margin-top: 15px; }
.counter .slash { color: #aab2bf; padding: 0 6px; }
.counter-label { color: #667085; margin-top: -8px; }
.count-editor { width: 100%; max-width: 320px; display: grid; grid-template-columns: 1fr auto; gap: 9px; align-items: end; margin-top: 20px; text-align: left; }
.alert { padding: 11px 13px; border-radius: 10px; margin: 12px 0; font-weight: 650; }
.alert.danger { background: #fff0ee; color: #a82318; border: 1px solid #ffd1cc; }
.alert.warning { background: #fff8e6; color: #805b00; border: 1px solid #f7df99; }
.hidden { display: none !important; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.live { color: #18733b; font-size: 13px; }
.live.offline { color: #a15c00; }
.empty { text-align: center; color: #667085; padding: 30px; background: #f8f9fb; border-radius: 12px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 11px 9px; border-bottom: 1px solid #edf0f4; }
.table th { font-size: 13px; color: #667085; }
.overflow-row { background: #fff0ee; }
.student-head { margin-bottom: 18px; }
.eyebrow { font-size: 12px; font-weight: 800; letter-spacing: .08em; color: #315eea; }
.confirm-box { padding: 16px; background: #f7f8fb; border-radius: 12px; }
.student-name { font-size: 24px; font-weight: 800; margin: 5px 0; }
.mobile-actions { margin-top: 15px; }
.success-box { text-align: center; padding: 20px 0 6px; }
.success-mark { width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 10px; display: grid; place-items: center; background: #eaf8ef; color: #18733b; font-size: 34px; font-weight: 800; }
.demo-list { margin-top: 24px; border-top: 1px solid #e8ebf0; padding-top: 16px; }
.demo-list summary { cursor: pointer; font-weight: 700; color: #667085; }
.demo-grid { display: grid; gap: 7px; margin-top: 12px; }
.demo-id { text-align: left; background: #f5f7fb; color: #29344a; padding: 9px 10px; font-weight: 600; }
@media (max-width: 760px) {
  .page { padding: 14px 12px 40px; }
  .grid.two, .teacher-grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .counter { font-size: 58px; }
  .narrow { margin: 12px auto; }
  .card { border-radius: 13px; padding: 17px; }
  .mobile-card { min-height: calc(100vh - 24px); }
  .mobile-actions { display: grid; grid-template-columns: 1fr; }
  .count-editor { grid-template-columns: 1fr; }
}

/* v0.2: normal teacher UI + separate projector screen */
.button { display: inline-flex; align-items: center; justify-content: center; font: inherit; font-weight: 700; border-radius: 10px; padding: 11px 15px; background: #315eea; color: white; text-decoration: none; }
.button:hover { filter: brightness(.97); }
.projector-button { white-space: nowrap; }
.card-kicker { font-size: 11px; font-weight: 850; letter-spacing: .11em; color: #667085; margin-bottom: 5px; }
.teacher-note { background: #eef4ff; border: 1px solid #c9d8ff; color: #29426e; border-radius: 12px; padding: 12px 14px; margin: -4px 0 18px; }
.table-wrap { width: 100%; overflow-x: auto; }

.public-display-body { background: #eef2f7; min-height: 100vh; }
.public-display-body .page { max-width: none; margin: 0; padding: 0; min-height: 100vh; }
.display-shell { min-height: 100vh; padding: 24px 28px 20px; display: flex; flex-direction: column; gap: 18px; }
.display-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; background: white; border: 1px solid #dfe5ee; border-radius: 18px; padding: 18px 22px; box-shadow: 0 4px 18px rgba(20,30,50,.04); }
.display-header h1 { font-size: clamp(28px, 3.3vw, 50px); margin: 1px 0 0; letter-spacing: -.025em; }
.display-header-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
button.compact { padding: 8px 12px; font-size: 14px; }
.display-alert { border-radius: 14px; padding: 13px 18px; font-size: clamp(16px, 1.5vw, 22px); font-weight: 720; text-align: center; }
.display-alert.danger { background: #fff0ee; color: #9d241a; border: 2px solid #f1a69f; }
.display-alert.info { background: #fff8e6; color: #755300; border: 1px solid #f0d379; }
.display-alert.success { background: #ecf9f0; color: #176b38; border: 1px solid #a9dfba; }
.display-grid { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(280px, 32vw) 1fr; gap: 18px; }
.display-join-panel, .display-roster-panel { background: white; border: 1px solid #dfe5ee; border-radius: 18px; box-shadow: 0 4px 18px rgba(20,30,50,.04); }
.display-join-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 22px; }
.display-qr-wrap { background: white; border: 1px solid #e2e6ed; border-radius: 16px; padding: 12px; width: min(310px, 90%); }
.display-qr { width: 100%; display: block; image-rendering: crisp-edges; }
.display-instruction { margin-top: 14px; font-weight: 750; font-size: clamp(17px, 1.5vw, 23px); }
.display-counter { font-size: clamp(62px, 8vw, 112px); font-weight: 850; letter-spacing: -5px; line-height: .95; margin-top: 26px; }
.display-counter .slash { color: #afb7c4; margin: 0 6px; }
.display-counter-label { color: #667085; font-size: clamp(14px, 1.25vw, 19px); margin-top: 10px; }
.display-roster-panel { padding: 22px 24px; min-width: 0; display: flex; flex-direction: column; }
.display-roster-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
.display-roster-head h2 { margin: 0; font-size: clamp(24px, 2.5vw, 38px); }
.display-empty { flex: 1; display: grid; place-items: center; color: #7b8492; font-size: clamp(18px, 2vw, 28px); border: 2px dashed #e1e6ed; border-radius: 14px; }
.display-roster { display: grid; grid-template-columns: repeat(auto-fit, minmax(245px, 1fr)); gap: 10px 12px; align-content: start; overflow-y: auto; padding-right: 2px; }
.display-name { min-height: 57px; display: flex; align-items: center; gap: 11px; border: 1px solid #e4e8ef; background: #f8fafc; border-radius: 12px; padding: 9px 12px; font-size: clamp(17px, 1.55vw, 24px); }
.display-name-number { flex: 0 0 auto; width: 31px; height: 31px; border-radius: 50%; display: grid; place-items: center; background: #e8edf5; color: #526177; font-size: 13px; font-weight: 800; }
.display-footer { display: flex; justify-content: space-between; gap: 20px; color: #526177; font-size: clamp(13px, 1.1vw, 17px); padding: 0 5px; }

@media (max-width: 900px) {
  .display-shell { padding: 12px; gap: 12px; }
  .display-header { padding: 14px 16px; }
  .display-grid { grid-template-columns: 1fr; }
  .display-join-panel { display: grid; grid-template-columns: 170px 1fr; gap: 14px 22px; text-align: left; justify-items: start; }
  .display-qr-wrap { grid-row: 1 / span 3; width: 170px; padding: 8px; }
  .display-instruction { margin: 0; }
  .display-counter { margin: 0; font-size: 62px; }
  .display-counter-label { margin: 0; }
  .display-footer { flex-direction: column; gap: 4px; }
}

@media (max-width: 600px) {
  .display-header { align-items: flex-start; }
  .display-header-actions { justify-content: flex-start; }
  .display-grid { display: block; }
  .display-join-panel { margin-bottom: 12px; grid-template-columns: 120px 1fr; }
  .display-qr-wrap { width: 120px; }
  .display-counter { font-size: 48px; }
  .display-roster { grid-template-columns: 1fr; }
  .display-footer { display: none; }
}

/* v0.3: dispute / false-registration verification */
.dispute-teacher-card { margin-bottom: 18px; }
.dispute-active { background: #fff3e8; color: #a54b00; }
.dispute-teacher-list { display: grid; gap: 12px; }
.dispute-teacher-item { display: grid; grid-template-columns: 76px 1fr auto; gap: 16px; align-items: center; padding: 16px; border: 1px solid #f1c9a7; background: #fffaf5; border-radius: 14px; }
.student-avatar-placeholder { width: 68px; height: 68px; border-radius: 50%; background: #e8edf5; color: #526177; display: grid; place-items: center; font-size: 23px; font-weight: 850; }
.dispute-target { font-size: 22px; margin: 2px 0; }
.reporter-line { margin-top: 8px; color: #3a4659; }
.dispute-teacher-actions { display: grid; gap: 8px; min-width: 230px; }
button.danger-button { background: #b42318; color: white; }
.recent-disputes { margin-top: 14px; border-top: 1px solid #e8ebf0; padding-top: 12px; }
.recent-disputes summary { cursor: pointer; font-weight: 700; color: #667085; }
.recent-dispute-list { display: grid; gap: 7px; margin-top: 10px; }
.recent-dispute-row { display: flex; justify-content: space-between; gap: 14px; padding: 9px 11px; background: #f7f8fb; border-radius: 9px; color: #475467; }
.student-success-actions { display: grid; gap: 9px; margin-top: 14px; }
.dispute-mobile { margin-top: 18px; padding: 17px; border: 1px solid #f1c9a7; background: #fffaf5; border-radius: 13px; }
.dispute-options { display: grid; gap: 8px; margin: 14px 0; max-height: 46vh; overflow-y: auto; }
button.dispute-option { text-align: left; background: white; color: #24314a; border: 1px solid #d8dee8; padding: 12px 13px; }
button.dispute-option:hover { background: #f6f8fb; }
.alert.info { background: #eef4ff; color: #29426e; border: 1px solid #c9d8ff; }
.alert.success { background: #ecf9f0; color: #176b38; border: 1px solid #a9dfba; }

@media (max-width: 760px) {
  .dispute-teacher-item { grid-template-columns: 58px 1fr; }
  .student-avatar-placeholder { width: 52px; height: 52px; font-size: 18px; }
  .dispute-teacher-actions { grid-column: 1 / -1; min-width: 0; }
  .recent-dispute-row { flex-direction: column; gap: 2px; }
}

/* v0.4: reversible removals, recheck requests, append-only audit history */
.recheck-teacher-card, .removed-card, .audit-card { margin-bottom: 18px; }
.recheck-item { border-color: #b8cef8; background: #f7faff; }
.removed-list { display: grid; gap: 9px; }
.removed-row { display: grid; grid-template-columns: 46px 1fr auto; gap: 12px; align-items: center; padding: 12px 13px; background: #f8f9fb; border: 1px solid #e2e6ed; border-radius: 11px; }
.small-avatar { width: 42px; height: 42px; font-size: 15px; }
.audit-list { display: grid; gap: 7px; max-height: 420px; overflow-y: auto; }
.audit-row { display: grid; grid-template-columns: 88px 1fr; gap: 10px; padding: 9px 11px; border-radius: 9px; background: #f8f9fb; border: 1px solid #edf0f4; }
.audit-time { font-variant-numeric: tabular-nums; color: #667085; font-size: 13px; }
.removed-mobile { text-align: center; padding: 18px 0 6px; }
.removed-mark { width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 10px; display: grid; place-items: center; background: #fff3e8; color: #a54b00; font-size: 34px; font-weight: 850; }
.removed-mobile button { width: 100%; margin-top: 9px; }

@media (max-width: 760px) {
  .removed-row { grid-template-columns: 46px 1fr; }
  .removed-row button { grid-column: 1 / -1; }
  .audit-row { grid-template-columns: 72px 1fr; }
}

/* v0.5: semesters, multiple courses and reusable student identities */
.dashboard-grid { grid-template-columns: minmax(0, 1.65fr) minmax(280px, .75fr); align-items: start; }
.dashboard-side { min-width: 0; }
.semester-block { border-top: 1px solid #e8ebf0; padding-top: 18px; margin-top: 18px; }
.semester-block:first-of-type { border-top: 0; padding-top: 0; margin-top: 6px; }
.semester-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.semester-head h3 { margin: 0; font-size: 20px; }
.archived-block { opacity: .72; }
.course-card-list { display: grid; gap: 11px; }
.course-card { border: 1px solid #dfe5ee; background: #fbfcfe; border-radius: 13px; padding: 14px; }
.archived-course { background: #f5f6f8; opacity: .78; }
.course-title-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.course-title-line h1, .course-title-line h3 { margin: 0; }
.course-code { display: inline-flex; align-items: center; border-radius: 999px; background: #eef2f7; color: #526177; padding: 4px 8px; font-size: 11px; font-weight: 800; letter-spacing: .04em; }
.course-code.large { font-size: 12px; padding: 5px 9px; }
.course-meta { color: #667085; font-size: 13px; margin-top: 4px; }
.course-card-actions { display: flex; align-items: end; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.secondary-link { background: #eef2f7; color: #29344a; }
.quick-start-form { display: flex; align-items: end; gap: 8px; flex: 1 1 330px; }
.quick-start-form label { flex: 1 1 150px; }
.quick-start-form input { min-width: 90px; }
.quick-start-form button { white-space: nowrap; }
.roster-tools { grid-template-columns: minmax(0, 1.2fr) minmax(240px, .8fr); gap: 16px; align-items: stretch; margin-bottom: 18px; }
.roster-add-form, .demo-enroll-box { border: 1px solid #e2e6ed; border-radius: 12px; padding: 14px; background: #fafbfc; }
.roster-add-form h3, .demo-enroll-box h3 { margin-top: 0; }
.compact-grid { gap: 10px; }
.demo-enroll-box { display: flex; flex-direction: column; justify-content: center; }
.right-cell { text-align: right !important; }
.roster-table-wrap { margin-top: 8px; }
.course-context { margin: 8px 0 16px; line-height: 1.5; }
.display-course-meta { color: #667085; font-size: clamp(13px, 1.15vw, 17px); margin-top: 3px; }

@media (max-width: 900px) {
  .dashboard-grid, .roster-tools { grid-template-columns: 1fr; }
  .quick-start-form { flex: 1 1 100%; }
}

@media (max-width: 600px) {
  .semester-head { align-items: flex-start; flex-direction: column; }
  .course-card-actions, .quick-start-form { align-items: stretch; flex-direction: column; }
  .quick-start-form button, .course-card-actions .button { width: 100%; }
}

/* v0.6: current semester selection + dynamic room headcount */
button:disabled { opacity: .45; cursor: not-allowed; filter: none; }
.current-semester-card { border-color: #b8cef8; background: #f9fbff; }
.current-semester-badge { background: #eef4ff; color: #29426e; }
.current-semester-block { border: 1px solid #cbd9ff; background: #fbfdff; border-radius: 13px; padding: 16px; }
.semester-title-line { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.semester-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.current-chip { background: #e9f0ff; color: #2f55b9; }
.semester-rename-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-bottom: 13px; max-width: 430px; }
.semester-rename-form input { padding: 8px 10px; font-size: 14px; }
.headcount-card { justify-content: flex-start; }
.headcount-controls { width: 100%; margin-top: 12px; }
.headcount-stepper { display: grid; grid-template-columns: 92px minmax(150px, 1fr) 92px; gap: 10px; align-items: stretch; max-width: 470px; margin: 0 auto; }
.headcount-step { min-height: 72px; font-size: 22px; }
.headcount-live-value { min-height: 72px; border: 1px solid #dfe5ee; background: #f8fafc; border-radius: 12px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; }
.headcount-live-value strong { font-size: 24px; }
.exact-count-editor { max-width: 470px; margin: 12px auto 0; }

@media (max-width: 600px) {
  .semester-actions { align-items: stretch; flex-direction: column; width: 100%; }
  .semester-actions form, .semester-actions button { width: 100%; }
  .semester-rename-form { grid-template-columns: 1fr; }
  .headcount-stepper { grid-template-columns: 72px minmax(120px, 1fr) 72px; }
  .headcount-step { min-height: 64px; }
}


/* v0.7: private student photos stored in the database */
.roster-photo { width: 58px; height: 58px; border-radius: 12px; object-fit: cover; border: 1px solid #dfe5ee; background: #f3f5f8; display: block; }
.photo-upload-inline { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 260px; }
.photo-upload-inline input[type=file] { max-width: 210px; font-size: 12px; }
.photo-reset-inline { margin-top: 5px; }
button.text-button { background: transparent; color: #526177; border: 0; padding-left: 0; padding-right: 0; text-decoration: underline; box-shadow: none; }
.verification-photo { width: 72px; height: 72px; border-radius: 14px; object-fit: cover; border: 1px solid #d7dee9; background: #eef2f7; }
.verification-photo.large { width: 118px; height: 118px; border-radius: 18px; }
.verification-photo.small { width: 46px; height: 46px; border-radius: 10px; }
.attendance-photo { width: 42px; height: 42px; border-radius: 9px; object-fit: cover; border: 1px solid #dfe5ee; background: #eef2f7; display: block; }
.dispute-teacher-item:has(.verification-photo.large) { grid-template-columns: 126px 1fr auto; }
@media (max-width: 760px) {
  .photo-upload-inline { min-width: 0; }
  .dispute-teacher-item:has(.verification-photo.large) { grid-template-columns: 92px 1fr; }
  .verification-photo.large { width: 86px; height: 86px; }
}

/* v0.8: reusable classroom layouts and private seating maps */
.classroom-list { display: grid; gap: 10px; }
.classroom-row { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 13px 14px; border: 1px solid #e1e6ed; background: #fafbfc; border-radius: 12px; }
.classroom-editor-tools { margin-bottom: 18px; }
.classroom-editor-card { overflow: hidden; }
.layout-canvas { position: relative; width: 100%; aspect-ratio: 1000 / 650; min-height: 430px; background: linear-gradient(#f7f9fc 1px, transparent 1px), linear-gradient(90deg, #f7f9fc 1px, transparent 1px), #fff; background-size: 25px 25px; border: 2px solid #d9e0ea; border-radius: 16px; overflow: hidden; touch-action: none; }
.teacher-edge { position: absolute; left: 36%; top: 1.2%; width: 28%; text-align: center; padding: 5px 8px; border-radius: 0 0 10px 10px; background: #e9eef6; color: #667085; font-size: 11px; font-weight: 850; letter-spacing: .08em; z-index: 1; }
.layout-seat { position: absolute; border: 2px solid #aab7c8; background: #f7f9fc; border-radius: 12px; display: flex; align-items: center; justify-content: center; user-select: none; box-sizing: border-box; }
.editable-seat { cursor: grab; box-shadow: 0 3px 9px rgba(30,45,70,.08); }
.editable-seat.dragging { cursor: grabbing; border-color: #315eea; box-shadow: 0 8px 24px rgba(49,94,234,.18); z-index: 20; }
.seat-label { font-size: 20px; font-weight: 850; color: #40506a; }
.seat-delete, .seat-clear { position: absolute; top: 3px; right: 4px; width: 23px; height: 23px; padding: 0; border-radius: 50%; background: #fff; color: #8a3540; border: 1px solid #d8dee8; font-size: 16px; line-height: 20px; display: grid; place-items: center; z-index: 7; }
.seat-delete:hover, .seat-clear:hover { background: #fff0ee; }
.seating-setup-card { margin-bottom: 18px; }
.layout-picker-form { max-width: 660px; }
.seating-workspace { display: grid; grid-template-columns: minmax(250px, 320px) minmax(0, 1fr); gap: 18px; align-items: start; }
.seating-roster-card { position: sticky; top: 12px; }
.seating-student-list { display: grid; gap: 8px; max-height: 68vh; overflow-y: auto; padding-right: 2px; }
.seating-student-card { display: grid; grid-template-columns: 48px 1fr; gap: 10px; align-items: center; padding: 8px 9px; border: 1px solid #dfe5ee; border-radius: 11px; background: #fafbfc; cursor: grab; }
.seating-student-card img, .seat-occupant img { width: 46px; height: 46px; border-radius: 9px; object-fit: cover; border: 1px solid #dfe5ee; background: #eef2f7; }
.seating-student-card span, .seat-occupant span { display: block; color: #667085; font-size: 12px; margin-top: 1px; }
.selected-student { border-color: #315eea !important; box-shadow: 0 0 0 3px rgba(49,94,234,.12); }
.selection-banner { margin-bottom: 10px; padding: 10px 12px; border: 1px solid #b8cef8; border-radius: 10px; background: #f5f8ff; color: #29426e; }
.seating-canvas { min-height: 520px; touch-action: manipulation; }
.lesson-seat { cursor: pointer; overflow: visible; background: #fbfcfe; }
.lesson-seat:hover { border-color: #6685dc; }
.lesson-seat.drop-target { border-color: #315eea; background: #eef4ff; box-shadow: 0 0 0 4px rgba(49,94,234,.12); }
.occupied-seat { background: #f6faff; border-color: #89a6e8; }
.seat-number { position: absolute; left: 5px; top: 4px; z-index: 6; width: 21px; height: 21px; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.92); color: #526177; border: 1px solid #d9e0ea; font-size: 10px; font-weight: 850; }
.seat-occupant { width: 100%; height: 100%; padding: 6px; display: grid; grid-template-columns: minmax(34px, 42%) 1fr; gap: 6px; align-items: center; box-sizing: border-box; overflow: hidden; cursor: grab; }
.seat-occupant img { width: 100%; height: auto; aspect-ratio: 1/1; min-width: 0; }
.seat-occupant b { display: block; font-size: clamp(9px, 1vw, 13px); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seat-occupant span { font-size: clamp(8px, .9vw, 11px); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@media (max-width: 900px) {
  .seating-workspace { grid-template-columns: 1fr; }
  .seating-roster-card { position: static; }
  .seating-student-list { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); max-height: none; }
  .layout-canvas, .seating-canvas { min-height: 0; }
}

@media (max-width: 600px) {
  .classroom-row { align-items: flex-start; flex-direction: column; }
  .classroom-row .actions { width: 100%; }
  .layout-canvas { border-radius: 10px; }
  .seating-student-list { grid-template-columns: 1fr 1fr; }
  .seating-student-card { grid-template-columns: 38px 1fr; gap: 7px; padding: 6px; }
  .seating-student-card img { width: 38px; height: 38px; }
  .seat-clear { width: 19px; height: 19px; font-size: 13px; }
}

/* v0.8.1: scalable classroom map, compact seats, private photo focus, left/returned attendance */
.map-toolbar-head { align-items: flex-start; gap: 12px; }
.map-toolbar { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.compact-button { min-width: 40px; padding: 8px 12px; }
.zoom-label { min-width: 52px; text-align: center; font-weight: 800; color: #526177; }
.snap-toggle { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: #526177; white-space: nowrap; }
.snap-toggle input { width: auto; }
.photo-size-control { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: #526177; }
.photo-size-control select { width: auto; min-width: 98px; padding: 7px 28px 7px 9px; }
.map-viewport { position: relative; width: 100%; height: min(70vh, 720px); min-height: 500px; overflow: auto; border: 1px solid #d9e0ea; border-radius: 14px; background: #eef2f7; overscroll-behavior: contain; }
.map-sizer { position: relative; min-width: 1px; min-height: 1px; }
.virtual-canvas { position: absolute; left: 0; top: 0; width: 1000px; height: 650px; min-height: 0; aspect-ratio: auto; border: 0; border-radius: 0; transform-origin: top left; touch-action: none; background: linear-gradient(#f1f4f8 1px, transparent 1px), linear-gradient(90deg, #f1f4f8 1px, transparent 1px), #fff; background-size: 20px 20px; }
.virtual-canvas.panning { cursor: grabbing; }
.editor-canvas { cursor: grab; }
.map-help { margin-top: 9px; }
.layout-seat { box-sizing: border-box; }
.editable-seat { min-width: 52px; min-height: 46px; }
.editable-seat .seat-label { font-size: 16px; }
.seat-delete { width: 19px; height: 19px; font-size: 13px; top: 2px; right: 2px; }
.seating-viewport { height: min(72vh, 760px); min-height: 520px; }
.seating-canvas { min-height: 0; }
.lesson-seat { min-width: 52px; min-height: 46px; }
.seat-number { width: 17px; height: 17px; font-size: 8px; left: 2px; top: 2px; }
.seat-clear { width: 17px; height: 17px; font-size: 12px; top: 2px; right: 2px; }
.seat-occupant { position: relative; padding: 3px; grid-template-columns: 44% 1fr; gap: 3px; }
.seat-occupant img { border-radius: 6px; cursor: zoom-in; }
.seat-occupant b { font-size: 9px; }
.seat-occupant span { font-size: 8px; }
.photo-size-small .seat-occupant { grid-template-columns: 34% 1fr; }
.photo-size-medium .seat-occupant { grid-template-columns: 55% 1fr; }
.photo-size-large .seat-occupant { display: block; padding: 1px; }
.photo-size-large .seat-occupant img { width: 100%; height: 100%; aspect-ratio: auto; object-fit: cover; border-radius: 8px; }
.photo-size-large .seat-occupant > div { position: absolute; left: 2px; right: 2px; bottom: 2px; padding: 2px 3px; border-radius: 4px; background: rgba(255,255,255,.82); overflow: hidden; }
.photo-size-large .seat-occupant span { display: none; }
.photo-size-large .seat-occupant b { font-size: 8px; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.left-students-block { border-top: 1px solid #e2e6ed; margin-top: 18px; padding-top: 16px; }
.compact-section-head { margin-bottom: 8px; }
.compact-section-head h3 { margin: 2px 0 0; }
.compact-left-list { max-height: 30vh; }
.left-student-card { grid-template-columns: 42px minmax(0,1fr) auto; cursor: default; opacity: .88; }
.left-student-card img { cursor: zoom-in; }
.return-mini { padding: 7px 9px; font-size: 12px; }
.small-empty { padding: 12px 6px; }
.student-photo-modal { position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; padding: 20px; background: rgba(20,28,42,.52); backdrop-filter: blur(3px); }
.student-photo-modal.hidden { display: none; }
.student-photo-dialog { position: relative; width: min(92vw, 520px); max-height: 90vh; overflow: auto; padding: 22px; border-radius: 20px; background: #fff; box-shadow: 0 24px 70px rgba(16,24,40,.28); text-align: center; }
.modal-close { position: absolute; right: 12px; top: 10px; width: 36px; height: 36px; padding: 0; border-radius: 50%; background: #f0f3f7; color: #526177; }
.modal-student-photo { display: block; width: min(70vw, 360px); height: min(70vw, 360px); max-width: 360px; max-height: 360px; margin: 10px auto 16px; object-fit: cover; border-radius: 20px; border: 1px solid #dfe5ee; background: #eef2f7; }
.student-photo-dialog h2 { margin-bottom: 4px; }
.modal-student-actions { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.compact-row-button { padding: 7px 9px; font-size: 12px; white-space: nowrap; }
.left-card { border-color: #d8e2f0; background: #fbfcff; }

@media (max-width: 900px) {
  .map-toolbar-head { flex-direction: column; }
  .map-toolbar { justify-content: flex-start; width: 100%; }
  .map-viewport, .seating-viewport { height: 62vh; min-height: 430px; }
}

@media (max-width: 600px) {
  .map-toolbar { gap: 6px; }
  .photo-size-control { width: 100%; }
  .photo-size-control select { flex: 1; }
  .map-viewport, .seating-viewport { height: 58vh; min-height: 380px; border-radius: 9px; }
  .left-student-card { grid-template-columns: 38px minmax(0,1fr); }
  .left-student-card .return-mini { grid-column: 1 / -1; width: 100%; }
  .modal-student-photo { width: min(78vw, 320px); height: min(78vw, 320px); }
}

/* v0.8.2: lecture/seminar session types, flexible seminar groups, seating before QR registration */
.session-start-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.session-start-box { border: 1px solid #dfe5ee; border-radius: 12px; padding: 13px; background: #fafbfc; display: grid; gap: 9px; align-content: start; }
.session-start-box p { margin: 0; }
.seminar-group-create { max-width: 620px; margin-bottom: 14px; }
.seminar-group-list { display: grid; gap: 8px; }
.seminar-group-row { display: grid; grid-template-columns: minmax(220px, 1fr) auto auto; gap: 10px; align-items: center; padding: 10px 12px; border: 1px solid #e2e6ed; border-radius: 11px; background: #fafbfc; }
.seminar-group-name-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.home-group-form { display: flex; gap: 7px; align-items: center; min-width: 220px; }
.home-group-form select { min-width: 135px; }
.visitor-chip { display: inline-block; margin-left: 5px; padding: 2px 6px; border-radius: 999px; background: #fff3e8; color: #a54b00; font-size: 10px; font-weight: 800; vertical-align: middle; }
.seating-roster-subblock { margin-top: 12px; }
.roster-subtitle { margin-bottom: 7px; font-weight: 850; letter-spacing: .05em; color: #667085; }
.student-group-line { color: #475467 !important; font-size: 10px !important; }
.attendance-mini { display: inline-block !important; width: fit-content; margin-top: 4px !important; padding: 2px 6px; border-radius: 999px; font-size: 9px !important; font-weight: 800; }
.attendance-mini.registered { background: #ecf9f0; color: #176b38 !important; }
.attendance-mini.not-registered { background: #fff3e8; color: #a54b00 !important; }
.lesson-seat .attendance-mini { display: none !important; }
.lesson-seat .student-group-line { display: none !important; }

@media (max-width: 760px) {
  .session-start-grid { grid-template-columns: 1fr; }
  .seminar-group-row { grid-template-columns: 1fr; }
  .seminar-group-name-form { grid-template-columns: 1fr; }
  .home-group-form { min-width: 0; flex-direction: column; align-items: stretch; }
}


/* v0.8.3: visible live registration status on private seating map */
.seat-status-legend { display: flex; flex-wrap: wrap; gap: 9px 14px; align-items: center; margin: -2px 0 10px; color: #5d687a; font-size: 11px; font-weight: 750; }
.seat-status-legend > span { display: inline-flex; align-items: center; gap: 5px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; box-shadow: 0 0 0 2px #fff, 0 0 0 3px rgba(40,55,80,.10); }
.legend-dot.registered { background: #27a65c; }
.legend-dot.not-registered { background: #e59a2f; }
.legend-visitor { display: inline-block; padding: 2px 5px; border-radius: 999px; background: #fff3e8; color: #a54b00; font-size: 9px; font-weight: 900; line-height: 1.2; }
.lesson-seat.seat-registered { border: 2px solid #35a765; background: #f3fbf6; box-shadow: 0 0 0 2px rgba(53,167,101,.10); }
.lesson-seat.seat-not-registered { border: 2px solid #e7a13d; background: #fffaf1; box-shadow: 0 0 0 2px rgba(231,161,61,.10); }
.seat-status-dot { position: absolute; right: 3px; bottom: 3px; z-index: 9; width: 11px; height: 11px; border-radius: 50%; border: 2px solid rgba(255,255,255,.96); box-shadow: 0 1px 4px rgba(26,35,52,.22); pointer-events: none; }
.seat-status-dot.registered { background: #27a65c; }
.seat-status-dot.not-registered { background: #e59a2f; }
.seat-visitor-badge { position: absolute; left: 3px; bottom: 3px; z-index: 9; max-width: calc(100% - 22px); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 2px 4px; border-radius: 999px; background: rgba(255,243,232,.96); color: #9b4a07; border: 1px solid #f2c38f; font-size: 7px; font-weight: 900; line-height: 1.1; pointer-events: none; }
.photo-size-large .seat-status-dot { width: 13px; height: 13px; }
.photo-size-large .seat-visitor-badge { font-size: 8px; }
@media (max-width: 760px) {
  .seat-status-legend { font-size: 10px; gap: 7px 10px; }
}

/* v0.9: valuable activity tracking on the private seating map */
.activity-summary-block { border-top: 1px solid #e2e6ed; margin-top: 18px; padding-top: 16px; }
.activity-head-actions { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; justify-content: flex-end; }
.activity-summary-list { display: grid; gap: 7px; margin-top: 9px; }
.activity-summary-row { display: grid; grid-template-columns: 36px minmax(0,1fr) auto; align-items: center; gap: 8px; padding: 7px 8px; border: 1px solid #e1e6ed; border-radius: 10px; background: #fafbfc; }
.activity-summary-row img { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; border: 1px solid #dfe5ee; cursor: zoom-in; }
.activity-summary-row b { display: block; font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.activity-summary-row span { display: block; margin-top: 2px; color: #667085; font-size: 10px; }
.activity-summary-actions { display: flex; gap: 4px; }
.activity-summary-actions button { min-width: 28px; width: 28px; height: 28px; padding: 0; border-radius: 8px; font-size: 16px; line-height: 1; }
.activity-mini-minus, .seat-activity-minus { background: #eef2f7; color: #344054; }
.activity-mini-plus, .seat-activity-plus, .activity-add-button { background: #2f63e9; color: #fff; }
.activity-mini-minus:disabled, .seat-activity-minus:disabled { opacity: .34; cursor: default; }
.student-activity-line { margin-top: 3px !important; color: #526177 !important; font-size: 9px !important; font-weight: 750; }
.lesson-seat .student-activity-line { display: none !important; }
.legend-activity { display: inline-grid; place-items: center; min-width: 22px; height: 18px; padding: 0 4px; border-radius: 6px; background: #2f63e9; color: #fff; font-size: 9px; font-weight: 900; }
.seat-activity-controls { position: absolute; left: 50%; bottom: 2px; transform: translateX(-50%); z-index: 12; display: flex; align-items: center; gap: 2px; padding: 2px; border-radius: 8px; background: rgba(255,255,255,.92); border: 1px solid rgba(198,208,222,.96); box-shadow: 0 1px 4px rgba(26,35,52,.12); }
.seat-activity-controls button { width: 17px; height: 17px; min-width: 17px; padding: 0; border-radius: 5px; font-size: 12px; line-height: 1; display: grid; place-items: center; }
.seat-activity-count { min-width: 15px; margin: 0 !important; text-align: center; color: #16223a !important; font-size: 9px !important; font-weight: 900; line-height: 1; }
.photo-size-small .seat-activity-controls { transform: translateX(-50%) scale(.86); transform-origin: bottom center; }
.photo-size-large .seat-activity-controls { bottom: 3px; }
.modal-activity-stats { display: flex; justify-content: center; gap: 10px 16px; flex-wrap: wrap; margin: 13px auto 2px; padding: 10px 12px; border: 1px solid #dfe5ee; border-radius: 11px; background: #f8fafc; color: #344054; }
.modal-activity-stats b, .modal-activity-stats span { font-size: 13px; }
.activity-add-button { border: 0; }

@media (max-width: 600px) {
  .activity-head-actions { justify-content: flex-start; }
  .activity-summary-row { grid-template-columns: 34px minmax(0,1fr) auto; }
  .seat-activity-controls button { width: 20px; height: 20px; min-width: 20px; }
  .seat-activity-count { font-size: 10px !important; }
}

/* v0.9.2 */
.manual-registration-row{display:flex;gap:12px;align-items:end;flex-wrap:wrap}.manual-registration-row label{flex:1;min-width:240px}.manual-registration-row input{width:100%}.consistency-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.consistency-list{display:flex;flex-direction:column;gap:8px}.consistency-row{display:flex;align-items:center;gap:10px;padding:9px 10px;border:1px solid var(--border,#d9dee7);border-radius:12px;background:#fff}.consistency-row img{width:38px;height:38px;border-radius:9px;object-fit:cover}.consistency-row>div{display:flex;flex-direction:column;min-width:0;flex:1}.consistency-row span{font-size:.78rem;color:#687386}.consistency-row.compact{padding:7px 8px}.seating-consistency-block{margin-top:18px;padding-top:16px;border-top:1px solid var(--border,#d9dee7)}@media(max-width:760px){.consistency-grid{grid-template-columns:1fr}}

/* v0.9.2 memos and attendance recheck */
.memo-dialog {
  width: min(720px, calc(100vw - 32px));
  max-height: 88vh;
  border: 0;
  border-radius: 18px;
  padding: 0;
  box-shadow: 0 24px 70px rgba(15, 23, 42, .28);
}
.memo-dialog::backdrop { background: rgba(15, 23, 42, .45); }
.memo-dialog-shell { display: grid; gap: 12px; padding: 22px; }
.memo-dialog textarea,
.modal-memo-panel textarea { width: 100%; box-sizing: border-box; resize: vertical; min-height: 84px; }
.modal-memo-panel { width: 100%; margin-top: 12px; text-align: left; }
.modal-memo-panel summary { cursor: pointer; font-weight: 700; margin-bottom: 10px; }
.modal-memo-panel label { display: grid; gap: 6px; margin: 10px 0 6px; }
.attendance-recheck-card .actions { justify-content: flex-start; }
.attendance-recheck-card .consistency-list { margin-top: 12px; }
button:disabled, input:disabled, textarea:disabled { opacity: .5; cursor: not-allowed; }
.divider-label { text-align:center; color: var(--muted, #64748b); font-size:.85rem; margin:16px 0; }
.narrow-shell { max-width: 680px; margin: 36px auto; }

/* v0.9.3 lesson titles/dates and private student dossiers */
.lesson-details-form { display:grid; grid-template-columns:minmax(240px,1.8fr) minmax(170px,.7fr) auto; gap:12px; align-items:end; }
.student-name-link { color:inherit; text-decoration:none; border-bottom:1px dotted #98a2b3; }
.student-name-link:hover { color:#2758d7; border-bottom-color:#2758d7; }
.student-search-results { display:grid; gap:7px; margin-top:12px; }
.student-search-result { display:grid; grid-template-columns:42px minmax(0,1fr); gap:9px; align-items:center; padding:8px; border:1px solid #e1e6ed; border-radius:11px; text-decoration:none; color:inherit; background:#fafbfc; }
.student-search-result:hover { border-color:#9fb4ea; background:#f6f8ff; }
.student-search-result img { width:42px; height:42px; object-fit:cover; border-radius:9px; }
.student-search-result span { min-width:0; display:grid; gap:2px; }
.student-search-result small { color:#667085; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.dossier-top-grid { grid-template-columns:minmax(260px,.8fr) minmax(320px,1.2fr); }
.dossier-profile { display:flex; gap:18px; align-items:center; }
.dossier-photo { width:128px; height:128px; object-fit:cover; border-radius:18px; border:1px solid #d9e0e9; background:#f5f7fa; }
.course-switch-list { display:grid; gap:8px; }
.course-switch { display:grid; gap:2px; padding:10px 12px; border:1px solid #e1e6ed; border-radius:11px; text-decoration:none; color:inherit; background:#fafbfc; }
.course-switch.current { border-color:#8ca8ef; background:#f3f6ff; box-shadow:inset 3px 0 0 #3b68df; }
.course-switch span { color:#667085; font-size:.82rem; }
.dossier-metrics { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:10px; margin:14px 0; }
.dossier-metrics > div { padding:12px; border:1px solid #e1e6ed; border-radius:12px; background:#fafbfc; display:grid; gap:5px; }
.dossier-metrics span { font-size:.75rem; color:#667085; }
.dossier-metrics b { font-size:1.3rem; }
.dossier-course-memo, .dossier-class-memo { white-space:pre-wrap; overflow-wrap:anywhere; }
.dossier-course-memo { margin-top:12px; padding:12px; border-radius:12px; background:#fffaf0; border:1px solid #f1d9a9; }
.dossier-class-memo { max-width:360px; font-size:.84rem; }
.dossier-status { display:inline-block; padding:3px 7px; border-radius:999px; font-size:.72rem; font-weight:800; background:#eef2f7; color:#475467; }
.dossier-status.active { background:#eaf8ef; color:#16723a; }
.dossier-status.left { background:#fff5e8; color:#975400; }
.dossier-status.removed { background:#fff0f0; color:#a13030; }
.dossier-status.not_registered { background:#f2f4f7; color:#667085; }
.dossier-modal-link { display:inline-block; margin-top:4px; font-size:.83rem; }

@media (max-width: 850px) {
  .lesson-details-form { grid-template-columns:1fr; }
  .dossier-top-grid { grid-template-columns:1fr; }
  .dossier-metrics { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width: 520px) {
  .dossier-profile { align-items:flex-start; }
  .dossier-photo { width:92px; height:92px; }
  .dossier-metrics { grid-template-columns:1fr 1fr; }
}

/* v0.9.4 live-class cockpit, temporary exits, compact navigation */
.start-class-panel { margin-top: 12px; padding: 14px; border: 1px solid #dce3ee; border-radius: 14px; background: #f8faff; }
.start-class-form { display: grid; gap: 12px; }
.start-class-fields { display: grid; grid-template-columns: minmax(130px,.55fr) minmax(150px,.7fr) minmax(220px,1.4fr) minmax(155px,.7fr); gap: 10px; align-items: end; }
.start-class-fields label { display: grid; gap: 6px; }
.start-class-fields select, .start-class-fields input { width: 100%; box-sizing: border-box; }

.live-class-header { margin-bottom: 12px; }
.live-overview { display: grid; grid-template-columns: minmax(0,1fr) 205px; gap: 18px; align-items: start; padding: 14px 16px; margin-bottom: 10px; }
.live-overview-main { min-width: 0; }
.live-overview-qr { text-align: center; padding-left: 16px; border-left: 1px solid #e5e9f0; }
.live-overview-qr h3 { margin: 2px 0 7px; font-size: 16px; }
.live-teacher-qr { width: 170px; }
.live-cockpit-metrics { display: grid; grid-template-columns: repeat(4,minmax(90px,1fr)) auto; gap: 9px; align-items: center; }
.live-cockpit-metrics > div:not(.status-badge) { display: grid; gap: 1px; padding: 8px 10px; border-radius: 10px; background: #f5f7fb; border: 1px solid #e3e7ef; }
.live-cockpit-metrics span { color: #687386; font-size: 10px; font-weight: 850; letter-spacing: .06em; }
.live-cockpit-metrics b { font-size: 20px; line-height: 1.1; color: #152038; }
.cockpit-alert-number { color: #b42318 !important; }
.live-overview .alert { margin: 9px 0 8px; }
.live-tabs { display: flex; gap: 7px; overflow-x: auto; padding-top: 3px; }
.live-tabs-row { margin: 0 0 14px; padding: 4px 1px; }
.live-tab { flex: 0 0 auto; border: 1px solid #dce3ee; background: #f7f9fc; color: #344054; padding: 8px 13px; border-radius: 999px; font-weight: 750; }
.live-tab.active { background: #315fdd; color: #fff; border-color: #315fdd; }
.live-panel { display: grid; gap: 16px; }
.live-room-grid { align-items: stretch; }
.room-map-shortcut { display: flex; flex-direction: column; align-items: flex-start; }
.room-map-shortcut .button { margin-top: auto; }

.temporary-exit-card { overflow: visible; }
.temporary-exit-summary { display: grid; grid-template-columns: minmax(280px,1fr) minmax(130px,.28fr); gap: 18px; align-items: end; margin: 8px 0 14px; }
.unknown-exit-counter { display: grid; gap: 7px; }
.unknown-exit-counter .headcount-stepper { width: max-content; max-width: 100%; }
.unknown-exit-counter strong { min-width: 46px; text-align: center; font-size: 25px; }
.exit-threshold-label { display: grid; gap: 6px; }
.temporary-exit-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.temporary-out-row { grid-template-columns: auto minmax(0,1fr) auto; }
.temporary-out-row.overdue { border-color: #f5a69f; background: #fff5f4; }
.identify-exit-controls { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.identify-exit-controls select { min-width: 190px; max-width: 270px; }

.manual-search-row { position: relative; }
.student-picker-results { display: grid; gap: 6px; margin-top: 8px; max-height: 310px; overflow: auto; padding: 7px; border: 1px solid #dfe5ee; border-radius: 12px; background: #fff; box-shadow: 0 12px 30px rgba(31,45,72,.11); }
.student-picker-result { display: grid; grid-template-columns: 42px minmax(0,1fr); gap: 9px; align-items: center; width: 100%; padding: 7px 9px; border: 1px solid transparent; border-radius: 10px; background: #f8fafc; color: #1f2937; text-align: left; }
.student-picker-result:hover { border-color: #9cb2eb; background: #f2f6ff; }
.student-picker-result img { width: 42px; height: 42px; object-fit: cover; border-radius: 9px; }
.student-picker-result span { display: grid; gap: 2px; min-width: 0; }
.student-picker-result small { color: #667085; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.recheck-history-grid { display: grid; grid-template-columns: minmax(250px,.85fr) minmax(300px,1.15fr); gap: 16px; margin-top: 18px; padding-top: 15px; border-top: 1px solid #e3e7ef; }
.recheck-history-row .audit-time { min-width: 35px; }
.recheck-total-row { grid-template-columns: minmax(0,1fr) auto; }
.recheck-total-row strong { font-size: 1rem; }
.student-temporarily-out-row { background: #fffaf0; }
.student-temporarily-out-row td { opacity: .88; }

/* Temporary-out state on seating map */
.lesson-seat.seat-temporary-out { border: 2px solid #d49a26; background: #fff9e9; box-shadow: 0 0 0 2px rgba(212,154,38,.12); }
.seat-status-dot.temporary-out { background: #d49a26; }
.attendance-mini.temporary-out { background: #fff1cc; color: #8a5b00; }
.seat-temporary-out .seat-occupant img { opacity: .72; }
.seat-temporary-out .seat-activity-controls { opacity: .55; }

.dossier-metrics { grid-template-columns: repeat(6,minmax(0,1fr)); }

@media (max-width: 1000px) {
  .start-class-fields { grid-template-columns: 1fr 1fr; }
  .live-overview { grid-template-columns: minmax(0,1fr) 185px; }
  .live-teacher-qr { width: 150px; }
  .live-cockpit-metrics { grid-template-columns: repeat(4,minmax(70px,1fr)); }
  .live-cockpit-metrics .status-badge { grid-column: 1 / -1; justify-self: start; }
  .temporary-exit-summary, .temporary-exit-columns, .recheck-history-grid { grid-template-columns: 1fr; }
  .dossier-metrics { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
@media (max-width: 650px) {
  .live-overview { grid-template-columns: 1fr; padding: 11px; }
  .live-overview-qr { border-left: 0; border-top: 1px solid #e5e9f0; padding: 12px 0 0; }
  .live-teacher-qr { width: 160px; }
  .live-cockpit-metrics { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .live-cockpit-metrics b { font-size: 18px; }
  .live-tabs { margin: 0 -2px; }
  .live-tab { padding: 8px 10px; }
  .start-class-fields { grid-template-columns: 1fr; }
  .temporary-exit-summary { grid-template-columns: 1fr; }
  .manual-registration-row label { min-width: 180px; }
  .dossier-metrics { grid-template-columns: 1fr 1fr; }
}

/* v0.9.4.2: compact, non-sticky live overview + unidentified exit controls */
.cockpit-exit-quick {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 10px 0 8px;
  padding: 10px 12px;
  border: 1px solid #d9e2f0;
  border-radius: 12px;
  background: #f8fafc;
}
.cockpit-exit-copy {
  min-width: 0;
  display: grid;
  gap: 2px;
}
.cockpit-exit-copy strong {
  font-size: 16px;
  color: #172033;
}
.cockpit-exit-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.exit-quick-button {
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 800;
  white-space: nowrap;
}
.exit-quick-button.out {
  background: #315fdd;
  border-color: #315fdd;
  color: #fff;
}
.exit-quick-button.back {
  background: #fff;
  color: #344054;
  border: 1px solid #cfd8e6;
}
.exit-quick-button:disabled {
  opacity: .5;
  cursor: not-allowed;
}
@media (max-width: 760px) {
  .cockpit-exit-quick {
    align-items: stretch;
    flex-direction: column;
  }
  .cockpit-exit-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .exit-quick-button {
    white-space: normal;
  }
}


/* v0.10 data import / export / backup */
.data-tools-card .actions{display:flex;gap:10px;flex-wrap:wrap}.data-upload-form{max-width:560px}.import-preview-wrap{max-height:560px;overflow:auto}.import-preview-table td{vertical-align:top}.import-error-row{background:#fff0f0}.import-warning-row{background:#fff8e6}.import-error{color:#9c1c1c;font-weight:700;margin-bottom:4px}.import-warning{color:#875600;margin-bottom:4px}.import-confirm-actions{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}.restore-preview-card details{margin:18px 0}.backup-table-counts{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px;margin-top:12px}.backup-table-counts>div{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;background:#f5f7fa;border-radius:8px}.restore-confirm-form{max-width:520px}.alert.success{background:#eef9f0;border-color:#b9e2c0;color:#215a2b}


/* v0.10.2 Projector Connect */
.teacher-projector-connect {
  display: grid;
  gap: 4px;
  margin-top: 12px;
  padding-top: 11px;
  border-top: 1px solid #e5e9f0;
}
.projector-code {
  font-size: 28px;
  line-height: 1;
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
  color: #1f3f91;
}
.projector-connect-url {
  display: block;
  margin-top: 3px;
  padding: 5px 7px;
  border-radius: 7px;
  background: #f3f6fa;
  color: #344054;
  font-size: 11px;
  overflow-wrap: anywhere;
}
.teacher-projector-connect.expired { opacity: .66; }
.projector-code.expired-text { color: #667085; letter-spacing: 0; font-size: 18px; }
.projector-connect-body { background: #f4f7fb; }
.projector-connect-body .page { min-height: 100vh; display: grid; place-items: center; }
.projector-connect-shell { width: min(620px, 100%); padding: 28px 18px; box-sizing: border-box; }
.projector-connect-card {
  background: #fff;
  border: 1px solid #dfe5ee;
  border-radius: 18px;
  padding: 30px;
  box-shadow: 0 18px 55px rgba(31,45,72,.10);
}
.projector-connect-card h1 { margin: 5px 0 8px; font-size: clamp(30px, 5vw, 44px); }
.projector-connect-intro { margin-bottom: 22px; font-size: 16px; }
.projector-connect-form { display: grid; gap: 9px; }
.projector-connect-form label { font-weight: 800; color: #27364f; }
.projector-connect-form input {
  width: 100%;
  box-sizing: border-box;
  min-height: 72px;
  padding: 12px 18px;
  text-align: center;
  font-size: clamp(32px, 8vw, 52px);
  font-weight: 850;
  letter-spacing: .18em;
  font-variant-numeric: tabular-nums;
}
.projector-connect-button { min-height: 54px; margin-top: 8px; font-size: 17px; }
.projector-connect-error { margin: 0 0 16px; }
.projector-connect-privacy {
  display: grid;
  gap: 3px;
  margin-top: 22px;
  padding: 13px 14px;
  border-radius: 12px;
  background: #f7f9fc;
  color: #536077;
}
.projector-connect-privacy strong { color: #27364f; }
@media (max-width: 520px) {
  .projector-connect-card { padding: 22px 18px; }
  .projector-connect-form input { letter-spacing: .12em; }
}

/* v0.10.3 separate projector password */
.projector-password-form .projector-password-input {
  min-height: 58px;
  font-size: 24px;
  letter-spacing: .08em;
}
.projector-lock-form {
  margin-top: 14px;
  display: flex;
  justify-content: center;
}