:root{
  --bg:#f5f7fb;--surface:#fff;--surface2:#f8fafc;--text:#172033;--muted:#697386;
  --border:#e5e9f0;--primary:#2563eb;--primary2:#1d4ed8;--success:#15803d;--warning:#b45309;
  --danger:#dc2626;--shadow:0 8px 30px rgba(15,23,42,.07);--radius:16px;
}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text)}
button,input,select{font:inherit}.hidden{display:none!important}.muted{color:var(--muted)}.tiny{font-size:12px;color:var(--muted)}
.screen{min-height:100vh;display:grid;place-items:center}.login-screen{background:linear-gradient(135deg,#eff6ff,#f8fafc)}
.login-card{width:min(440px,92vw);background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:24px;padding:42px;text-align:center}
.brand-mark{width:58px;height:58px;border-radius:17px;display:grid;place-items:center;background:#2563eb;color:#fff;font-weight:800;font-size:18px;margin:0 auto 18px}
.brand-mark.small{width:38px;height:38px;border-radius:11px;margin:0;font-size:13px}
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--primary)}
h1{font-size:34px;margin:8px 0 12px}h2{margin:0 0 8px;font-size:25px}h3{margin:0;font-size:17px}
.google-btn{width:100%;padding:13px 16px;border:1px solid #d7dce5;background:#fff;border-radius:12px;font-weight:700;cursor:pointer;margin:24px 0 10px}
.google-btn:hover{background:#f8fafc}.google-icon{margin-right:10px;font-weight:900}
.topbar{height:68px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:11px}.brand small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.top-actions{display:flex;align-items:center;gap:8px}.user-email{font-size:12px;color:var(--muted);margin-right:6px}
.layout{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 68px)}
.sidebar{background:#111827;padding:18px 12px;display:flex;flex-direction:column;gap:5px}.nav-item{border:0;background:transparent;color:#aeb7c6;text-align:left;padding:12px 13px;border-radius:10px;cursor:pointer;font-weight:600}
.nav-item:hover,.nav-item.active{background:#1e293b;color:#fff}.nav-item.active{box-shadow:inset 3px 0 #60a5fa}
.content{padding:28px;max-width:1600px;width:100%;margin:auto}
.page-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:22px}.page-head p{margin:5px 0 0;color:var(--muted);font-size:13px}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{border:1px solid transparent;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary2)}
.btn-secondary{background:#fff;border-color:var(--border);color:var(--text)}.btn-danger{background:#fff;border-color:#fecaca;color:var(--danger)}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 2px 12px rgba(15,23,42,.03);padding:18px}.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:15px}
.kpi{padding:20px}.kpi .label{font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.05em}.kpi .value{font-size:30px;font-weight:800;margin-top:7px}.kpi .hint{font-size:12px;color:var(--muted);margin-top:5px}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px}.table{width:100%;border-collapse:collapse;background:#fff}.table th,.table td{padding:11px 12px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap;font-size:13px}.table th{background:var(--surface2);font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#5f6b7a}.table tr:last-child td{border-bottom:0}.table td.center,.table th.center{text-align:center}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.field label{display:block;font-size:12px;font-weight:700;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:10px 11px;border:1px solid #dce1e8;border-radius:9px;background:#fff;outline:none}.field input:focus,.field select:focus{border-color:#7aa2f7;box-shadow:0 0 0 3px #dbeafe}.field.full{grid-column:1/-1}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:700;background:#eef2ff;color:#3730a3}.badge.success{background:#dcfce7;color:#166534}.badge.warning{background:#fef3c7;color:#92400e}.badge.danger{background:#fee2e2;color:#991b1b}.badge.gray{background:#f1f5f9;color:#475569}
.empty{padding:35px;text-align:center;color:var(--muted)}.info{padding:13px 15px;border-radius:11px;background:#eff6ff;color:#1e40af;font-size:13px}.warning{padding:13px 15px;border-radius:11px;background:#fffbeb;color:#92400e;font-size:13px}
.setup-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.step{padding:15px;border:1px solid var(--border);border-radius:12px;background:#fff}.step strong{display:block;font-size:13px}.step span{font-size:11px;color:var(--muted)}
.progress{height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden}.progress>div{height:100%;background:var(--primary);transition:width .25s}
.timetable-wrap{overflow:auto;border:1px solid var(--border);border-radius:14px;background:#fff}.tt{border-collapse:collapse;min-width:1050px;width:100%;table-layout:fixed}.tt th,.tt td{border:1px solid #dfe4eb;text-align:center;padding:6px;vertical-align:middle}.tt th{background:#f8fafc;font-size:11px}.tt .day{width:88px;font-weight:800;background:#f8fafc}.slot{height:76px}.slot .sub{font-weight:800;font-size:13px}.slot .teacher{font-size:10px;color:#64748b;margin-top:3px}.slot.break{background:#f1f5f9;color:#64748b;font-weight:700}.slot.free{color:#94a3b8;background:#fff}.quality{display:flex;align-items:center;gap:12px}.score{font-size:32px;font-weight:800}.issue-list{display:grid;gap:8px}.issue{padding:10px 12px;border-radius:9px;background:#fff7ed;color:#9a3412;font-size:12px}
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.48);display:grid;place-items:center;z-index:100;padding:20px}.modal-card{background:#fff;width:min(650px,96vw);max-height:90vh;overflow:auto;border-radius:18px;box-shadow:0 20px 70px rgba(0,0,0,.2)}.modal-head,.modal-foot{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.modal-foot{border-top:1px solid var(--border);border-bottom:0;justify-content:flex-end;gap:8px}.modal-body{padding:20px}.icon-btn{border:0;background:transparent;font-size:25px;cursor:pointer;color:var(--muted)}
.toast{position:fixed;right:18px;bottom:18px;background:#111827;color:#fff;padding:13px 16px;border-radius:10px;box-shadow:var(--shadow);z-index:200;display:none;max-width:420px;font-size:13px}.toast.show{display:block}
.solver-box{padding:22px;border:1px solid var(--border);border-radius:15px;background:#fff}.solver-status{font-size:13px;font-weight:700;margin:10px 0}
@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,1fr)}.setup-steps{grid-template-columns:repeat(2,1fr)}.layout{grid-template-columns:72px 1fr}.nav-item span{display:none}.nav-item{text-align:center}.sidebar{padding:14px 9px}.content{padding:20px}}
@media(max-width:650px){.topbar{padding:0 12px}.user-email{display:none}.content{padding:14px}.grid-4,.grid-3,.grid-2,.form-grid{grid-template-columns:1fr}.setup-steps{grid-template-columns:1fr}.page-head{flex-direction:column}.login-card{padding:28px}.top-actions .btn-primary{display:none}}
.view-switch{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.form-select.compact{width:auto;min-width:220px;padding:10px}.teacher-picker{max-height:220px;overflow:auto;border:1px solid var(--border);border-radius:10px;padding:8px}.check-row{display:flex;gap:9px;align-items:center;padding:8px 9px;border-radius:8px;cursor:pointer}.check-row:hover{background:#f8fafc}.check-row input{width:16px;height:16px}.check-row small{color:var(--muted);margin-left:5px}.color-swatch{display:inline-block;width:22px;height:22px;border-radius:6px;vertical-align:middle;margin-right:8px;border:1px solid rgba(0,0,0,.12)}
@media print{body{background:#fff}.topbar,.sidebar,.page-head,.card:not(.printable-area),.view-switch,#toast{display:none!important}.layout{display:block}.content{padding:0;max-width:none}.printable-area{display:block!important;border:0!important;box-shadow:none!important;padding:0!important}.print-sheet{page-break-after:always}.tt{width:100%}}

.csv-note{font-size:12px;color:#64748b;margin-top:8px}

.allocation-filter{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:10px}
.allocation-filter select{min-width:180px}
@media(max-width:700px){.allocation-filter{display:grid!important;grid-template-columns:1fr}.allocation-filter select{width:100%}}

.status-banner{padding:12px 14px;border-radius:10px;margin:12px 0;font-weight:600}
.status-banner.success{background:#ecfdf5;color:#166534;border:1px solid #bbf7d0}
.status-banner.danger{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.quality-alert{border:1px solid #fecaca}
.overall-card{overflow:hidden}
.overall-scroll{overflow:auto;max-width:100%}
.overall-grid,.lesson-grid{border-collapse:collapse;width:max-content;min-width:100%;font-size:11px}
.overall-grid th,.overall-grid td,.lesson-grid th,.lesson-grid td{border:1px solid #64748b;text-align:center;padding:3px;min-width:52px;height:36px}
.overall-grid thead th{background:#f1f5f9;position:sticky;top:0;z-index:2}
.overall-grid .ov-rowhead{position:sticky;left:0;z-index:3;background:#f8fafc;min-width:110px;text-align:left}
.overall-grid thead .ov-rowhead{z-index:4}
.overall-grid thead th small{display:block;font-size:8px;font-weight:400}
.ov-cell{font-weight:600;vertical-align:middle}
.ov-sub{font-weight:700}
.ov-teacher{font-size:9px;font-weight:500;margin-top:2px}
.ov-free{color:#94a3b8;background:#f8fafc}
.lesson-grid{width:100%;min-width:900px}
.lesson-grid th,.lesson-grid td{min-width:45px}
.lesson-grid thead th{background:#f1f5f9}
.lesson-grid tbody th{text-align:left;background:#f8fafc;white-space:nowrap}
@media(max-width:900px){.overall-grid,.lesson-grid{font-size:10px}.overall-grid th,.overall-grid td{min-width:48px}}

.allocation-filter{align-items:end}
.allocation-period-total{min-width:150px;min-height:54px;padding:8px 16px;border:1px solid #dbe3ef;border-radius:12px;background:#fff;display:flex;flex-direction:column;justify-content:center;box-sizing:border-box}
.allocation-period-total span{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#64748b;font-weight:700}
.allocation-period-total strong{font-size:22px;line-height:1.1;color:#0f172a}
.timetable-suggestions{margin-top:14px;padding:14px 16px;border:1px solid #f1d58a;border-radius:12px;background:#fffaf0}
.timetable-suggestions-title{font-weight:800;color:#7c5a00;margin-bottom:7px}
.timetable-suggestions ul{margin:0;padding-left:20px;color:#5f4a10}
.timetable-suggestions li{margin:5px 0}
.timetable-suggestions-empty{color:#166534;font-size:14px}
@media(max-width:700px){.allocation-period-total{width:100%}}

.school-option{align-items:flex-start!important;gap:10px}
.school-option input{margin-top:3px}
.school-option span{display:flex;flex-direction:column;gap:3px}
.school-option small{font-weight:400;color:#64748b;line-height:1.35}

.substitution-controls{display:grid;grid-template-columns:220px 1fr;gap:18px;margin-bottom:18px}
.sub-leave-box{border:1px solid #e2e8f0;border-radius:12px;padding:12px;background:#f8fafc}
.sub-leave-box>label{display:block;font-size:12px;font-weight:700;color:#475569;margin-bottom:8px}
.sub-leave-list{display:flex;flex-wrap:wrap;gap:8px}
.sub-leave-option{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid #dbe3ef;border-radius:8px;padding:7px 10px;cursor:pointer}
.substitution-note{margin:14px 0;padding:10px 12px;border-radius:10px;background:#eff6ff;color:#1e40af;font-size:13px}
.substitution-list{display:grid;gap:12px}
.substitution-card{padding:14px}
.substitution-head{display:flex;justify-content:space-between;gap:12px;align-items:center}
.sub-candidate-list{display:grid;gap:6px}
.sub-candidate{display:grid;grid-template-columns:28px 1fr 55px 180px;align-items:center;gap:8px;padding:8px 10px;border:1px solid #e2e8f0;border-radius:8px;background:#fff}
.sub-candidate .rank{font-weight:800;color:#64748b}
.sub-candidate .load{font-size:12px;color:#64748b;text-align:right}
@media(max-width:760px){
  .substitution-controls{grid-template-columns:1fr}
  .substitution-head{display:block}
  .sub-candidate{grid-template-columns:26px 1fr 50px}
  .sub-candidate .load{grid-column:2/-1;text-align:left}
}

/* ================= V13 EXPERIENCE DESIGN ================= */
:root{
  --bg:#f4f7fb;
  --surface:#ffffff;
  --surface2:#f8fafc;
  --text:#172033;
  --muted:#667085;
  --border:#e4e9f1;
  --primary:#2563eb;
  --primary2:#1d4ed8;
  --success:#15803d;
  --warning:#b45309;
  --danger:#dc2626;
  --shadow:0 8px 28px rgba(15,23,42,.055);
  --shadow-hover:0 12px 34px rgba(15,23,42,.09);
  --radius:16px;
}
body{background:linear-gradient(180deg,#f7f9fc 0,#f4f7fb 42%,#f4f7fb 100%);letter-spacing:-.01em}
.topbar{height:72px;padding:0 26px;box-shadow:0 1px 0 rgba(15,23,42,.03)}
.brand strong{font-size:14px;letter-spacing:-.02em}
.brand small{font-size:10px;font-weight:600;letter-spacing:.02em}
.sidebar{background:#111827;padding:18px 11px 22px;gap:4px;border-right:1px solid rgba(255,255,255,.04)}
.nav-section-title{font-size:9px;font-weight:800;letter-spacing:.13em;color:#64748b;padding:15px 12px 6px}
.nav-item{min-height:43px;border-radius:11px;color:#aeb7c6;padding:10px 12px;transition:background .15s ease,color .15s ease,transform .15s ease}
.nav-item:hover{background:#1b2638;color:#fff;transform:translateX(1px)}
.nav-item.active{background:#243247;color:#fff;box-shadow:inset 3px 0 #60a5fa}
.nav-item.nav-highlight{color:#dbeafe}
.content{padding:32px;max-width:1680px}
.card{box-shadow:0 2px 10px rgba(15,23,42,.025);transition:box-shadow .18s ease,border-color .18s ease}
.card:hover{border-color:#d9e1ec}
.btn{min-height:40px;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{box-shadow:0 5px 14px rgba(37,99,235,.18)}
.page-head h2{font-size:27px;letter-spacing:-.035em}
.page-head p{font-size:13px;max-width:720px}
.section-kicker{font-size:10px;letter-spacing:.13em;font-weight:800;color:#8090a6;margin-bottom:4px}
.dashboard-hero{display:flex;justify-content:space-between;gap:28px;align-items:center;margin-bottom:20px;padding:4px 2px 4px}
.dashboard-title{font-size:31px;letter-spacing:-.045em;margin:5px 0 8px}
.dashboard-subtitle{margin:0;color:var(--muted);font-size:13px;max-width:690px;line-height:1.6}
.dashboard-primary-action{display:flex;flex-direction:column;align-items:flex-end;gap:7px}
.dashboard-primary-action span{font-size:10px;color:#8390a3}
.btn-generate{min-height:46px;padding:12px 18px;font-size:14px}
.readiness-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:17px 19px;margin-bottom:18px;box-shadow:var(--shadow)}
.readiness-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.readiness-top>div{display:flex;flex-direction:column;gap:3px}
.readiness-top span{font-size:11px;color:var(--muted)}
.readiness-top>strong{font-size:18px}
.readiness-progress{height:7px}
.readiness-items{display:flex;gap:9px;flex-wrap:wrap;margin-top:13px}
.readiness-item{display:flex;align-items:center;gap:6px;padding:6px 9px;border-radius:9px;background:#f8fafc;color:#667085;font-size:11px;font-weight:700}
.readiness-item.done{background:#ecfdf3;color:#166534}
.readiness-icon{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:#e7edf5;font-size:10px}
.readiness-item.done .readiness-icon{background:#bbf7d0}
.dashboard-kpis .kpi{min-height:118px}
.dashboard-main-grid{margin-top:16px}
.timetable-status-card{min-height:330px}
.status-pill{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:10px;font-weight:800}
.status-pill.success{background:#dcfce7;color:#166534}
.status-pill.warning{background:#fef3c7;color:#92400e}
.status-pill.danger{background:#fee2e2;color:#991b1b}
.status-pill.gray{background:#f1f5f9;color:#475569}
.dashboard-empty{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;text-align:center;color:var(--muted)}
.dashboard-empty strong{color:var(--text);font-size:14px}
.empty-icon{width:48px;height:48px;border-radius:15px;background:#eff6ff;color:#2563eb;display:grid;place-items:center;font-size:21px;margin-bottom:3px}
.quick-actions{display:grid;gap:8px}
.quick-action{width:100%;border:1px solid #e6ebf2;background:#fff;border-radius:12px;padding:11px 12px;display:grid;grid-template-columns:34px 1fr 16px;align-items:center;text-align:left;gap:9px;cursor:pointer;transition:.15s ease}
.quick-action:hover{background:#f8fbff;border-color:#bfdbfe;transform:translateX(2px)}
.quick-action>span{width:32px;height:32px;border-radius:9px;background:#eff6ff;color:#2563eb;display:grid;place-items:center}
.quick-action strong{display:block;font-size:12px}
.quick-action small{display:block;color:var(--muted);font-size:10px;margin-top:2px}
.quick-action b{color:#94a3b8;font-size:18px}
.dashboard-bottom{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;margin-top:16px}
.dashboard-guide{background:linear-gradient(135deg,#fff,#f8fbff)}
.mini-flow{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin:15px 0}
.mini-flow span{padding:6px 9px;background:#eff6ff;color:#1d4ed8;border-radius:8px;font-size:10px;font-weight:800}
.mini-flow b{color:#94a3b8;font-size:12px}
.dashboard-guide p{font-size:12px;line-height:1.6;margin-bottom:0}
.issue{border:1px solid transparent}
.status-banner{line-height:1.5}
.toast{border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);animation:toastIn .18s ease}
@keyframes toastIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:900px){
  .dashboard-hero{align-items:flex-start;flex-direction:column}
  .dashboard-primary-action{align-items:flex-start}
  .dashboard-bottom{grid-template-columns:1fr}
}
@media(max-width:650px){
  .content{padding:18px 14px}
  .dashboard-title{font-size:26px}
  .dashboard-hero{margin-bottom:15px}
  .readiness-items{display:grid;grid-template-columns:1fr 1fr}
  .dashboard-bottom{display:block}
  .dashboard-bottom>.card+ .card{margin-top:14px}
}

/* V14 generation feedback */
.generation-overlay{position:fixed;inset:0;z-index:9999;background:rgba(15,23,42,.52);backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px}
.generation-dialog{width:min(430px,94vw);background:#fff;border-radius:20px;padding:28px;box-shadow:0 24px 70px rgba(15,23,42,.25);text-align:center}
.generation-spinner{width:42px;height:42px;border:4px solid #dbeafe;border-top-color:#2563eb;border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 15px}
.generation-title{font-size:18px;font-weight:800;color:#172033}.generation-sub{font-size:12px;color:#667085;line-height:1.55;margin:7px 0 17px}
.generation-steps{text-align:left;background:#f8fafc;border:1px solid #e5eaf1;border-radius:12px;padding:12px 14px;display:grid;gap:8px;font-size:11px;color:#64748b}
.generation-wait{font-size:10px;color:#94a3b8;margin-top:13px}
@keyframes spin{to{transform:rotate(360deg)}}

/* V15 School Backup & Restore */
.backup-panel{margin-top:18px;border:1px solid #dbe5f0;background:#f8fbff;border-radius:14px;padding:14px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.backup-panel>div:first-child{display:flex;flex-direction:column;gap:3px}.backup-panel strong{font-size:12px}.backup-panel small{font-size:10px;color:#667085}
.backup-actions{display:flex;gap:8px;flex-wrap:wrap}.backup-warning{text-align:left}.backup-warning-icon{font-size:26px;margin-bottom:4px}
.backup-warning h3{margin:0 0 6px;font-size:18px}.backup-warning p{font-size:12px;color:#667085;line-height:1.55}
.backup-compare{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:14px 0}.backup-compare>div{background:#f8fafc;border:1px solid #e5eaf1;border-radius:9px;padding:8px;text-align:center}
.backup-compare span{display:block;font-size:9px;color:#667085}.backup-compare strong{display:block;font-size:15px;margin-top:3px}
.backup-danger-text{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:10px;color:#9a3412!important}
.backup-warning .check-row{margin:12px 0}.backup-before-restore{width:100%;margin-top:4px}.full{width:100%}
@media(max-width:700px){.backup-panel{align-items:flex-start;flex-direction:column}.backup-compare{grid-template-columns:repeat(3,1fr)}}

/* V16 multi-school team workspaces */
.nav-disabled{opacity:.35!important;pointer-events:none!important}
.school-switcher{min-height:38px;max-width:230px;border:1px solid #d9e1ec;background:#fff;border-radius:10px;padding:0 10px;color:#344054;font-size:11px;font-weight:700}
.workspace-landing{max-width:1050px;margin:0 auto;padding:10px 0 40px}.workspace-landing h1{font-size:34px;margin:6px 0 8px;letter-spacing:-.045em}.workspace-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:24px 0}.workspace-card{padding:20px;display:flex;align-items:center;gap:14px}.workspace-icon{font-size:30px}.workspace-card-main{display:flex;flex-direction:column;gap:4px;flex:1}.workspace-card-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.workspace-card-main h3{margin:0;font-size:16px}.workspace-card-main small{font-size:9px;color:#98a2b3;margin-top:3px}.role-badge{display:inline-flex;width:max-content;padding:4px 8px;border-radius:999px;font-size:9px;font-weight:800}.role-badge.owner{background:#fff7d6;color:#9a6700}.role-badge.member{background:#eaf2ff;color:#175cd3}.empty-workspace{padding:30px;text-align:center}.create-school-btn{margin-top:4px}.invite-card{margin-top:20px;padding:18px}.invite-card h3{margin:4px 0 14px}.invite-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #eef2f6;padding:13px 0}.invite-row>div:first-child{display:flex;flex-direction:column;gap:3px}.invite-row small{font-size:10px;color:#667085}.team-card{padding:18px}.team-list{display:grid}.team-row{display:flex;align-items:center;gap:12px;padding:13px 2px;border-top:1px solid #eef2f6}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#eaf2ff;color:#175cd3;font-weight:800;font-size:12px}.team-person{flex:1;display:flex;flex-direction:column;gap:3px}.team-person strong{font-size:12px}.team-person small{font-size:10px;color:#667085}@media(max-width:800px){.workspace-grid{grid-template-columns:1fr}.school-switcher{max-width:150px}.team-row{flex-wrap:wrap}}

.workspace-actions{display:flex;gap:10px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:16px}

.status-pill{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap}.status-pending{background:#fff4d6;color:#8a5a00}.status-rejected{background:#ffe2e2;color:#a12b2b}.invite-status-row{border-style:dashed}

/* V18 School Setup */
.school-setup-v18{display:grid;gap:16px}.setup-card{padding:20px}.setup-step{display:flex;gap:13px;align-items:flex-start;margin-bottom:18px}.setup-step>span{width:30px;height:30px;border-radius:10px;background:#eff6ff;color:#2563eb;display:grid;place-items:center;font-weight:800;font-size:12px;flex:0 0 auto}.setup-step h3{margin:0;font-size:17px}.setup-step p{margin:4px 0 0;color:var(--muted);font-size:11px;line-height:1.5}.setup-grid{margin-left:43px}.read-only-field{min-height:42px;border:1px solid var(--border);border-radius:10px;background:#f8fafc;padding:11px 12px;font-size:12px;color:#475569;display:flex;align-items:center}.setup-days{margin-left:43px}.setup-toggle{min-height:52px}.setup-toggle input{width:18px;height:18px}.bell-card{overflow:hidden}.bell-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.bell-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:18px 0}.bell-summary>div{background:#f8fafc;border:1px solid #e7edf4;border-radius:11px;padding:10px 12px}.bell-summary strong{display:block;font-size:13px;color:#172033}.bell-summary span{display:block;font-size:10px;color:#7b8798;margin-top:3px}.bell-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:8px 0 12px}.bell-table-wrap{overflow-x:auto;border:1px solid #e4eaf1;border-radius:13px}.bell-table{margin:0;min-width:760px}.bell-table input[type=time]{min-width:112px;padding:8px 9px;border:1px solid #d7e0ea;border-radius:8px;background:#fff;font:inherit;font-size:12px}.bell-table .break-row{background:#fafbfc}.bell-table .zero-row{background:#f7fbff}.zero-badge{margin-left:6px;background:#dbeafe;color:#1d4ed8}.duration-cell{font-size:11px;font-weight:800;color:#475569}.bell-help{display:flex;flex-wrap:wrap;gap:8px 18px;padding:12px 2px 0;color:#718096;font-size:10px;line-height:1.5}.bell-help strong{color:#334155}
@media(max-width:760px){.setup-grid,.setup-days{margin-left:0}.bell-head{flex-direction:column}.bell-summary{grid-template-columns:repeat(2,1fr)}.bell-toolbar{align-items:flex-start;flex-direction:column}}

.save-pulse{box-shadow:0 0 0 3px rgba(245,158,11,.18);animation:savePulse 1.5s ease-in-out infinite}
.unsaved-note{min-height:24px;margin:10px 0 4px;font-size:13px;font-weight:700;color:#b45309}
.modal-help{margin:10px 0 0;padding:10px 12px;border-radius:10px;background:rgba(59,130,246,.07);font-size:13px}
@keyframes savePulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-1px)}}

/* V18 Final Bell Times editor */
.bell-editor-page{display:grid;gap:18px}
.bell-hero{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px}
.bell-hero h2{margin:4px 0 5px;font-size:22px}
.bell-hero p{margin:0;color:var(--muted,#64748b)}
.bell-span{min-width:190px;padding:14px 18px;border:1px solid #dbe4f0;border-radius:14px;background:#f8fbff;text-align:right}
.bell-span strong{display:block;font-size:18px;color:#16345f}
.bell-span span{display:block;margin-top:4px;color:#64748b;font-size:12px}
.bell-editor-card{padding:20px}
.bell-editor-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}
.bell-editor-toolbar h3{margin:0 0 4px}
.bell-editor-toolbar p{margin:0;color:#64748b}
.smart-rule{display:flex;gap:12px;align-items:center;padding:12px 14px;margin-bottom:16px;border-radius:12px;background:#eef7ff;border:1px solid #d8ebff}
.smart-rule>span{font-size:20px}.smart-rule strong{display:block;color:#164e7a}.smart-rule small{display:block;color:#587089;margin-top:2px}
.final-bell-table th,.final-bell-table td{vertical-align:middle}
.final-bell-table .break-row{background:#fffaf0}
.final-bell-table .zero-row{background:#f0fdf4}
.slot-abbr{font-weight:800;letter-spacing:.04em}
.bell-editor-footer{display:flex;align-items:center;justify-content:space-between;margin-top:14px}
.bell-help-card{padding:20px}
.help-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:14px}
.help-grid>div{padding:14px;border:1px solid #e2e8f0;border-radius:12px;background:#fbfdff}
.help-grid strong{display:block}.help-grid p{margin:6px 0 0;color:#64748b;font-size:13px;line-height:1.45}
.bell-editor-link{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px;border:1px solid #dbe5f0;border-radius:14px;background:linear-gradient(135deg,#f8fbff,#ffffff)}
.bell-editor-link h3{margin:3px 0 4px}.bell-editor-link p{margin:0;color:#64748b}
.setup-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}
.setup-summary>div{padding:13px;border:1px solid #e2e8f0;border-radius:12px;background:#fbfdff}
.setup-summary strong{display:block;font-size:16px;color:#17375f}.setup-summary span{display:block;font-size:12px;color:#64748b;margin-top:3px}
@media(max-width:800px){.bell-hero,.bell-editor-toolbar,.bell-editor-footer,.bell-editor-link{flex-direction:column;align-items:stretch}.bell-span{text-align:left}.help-grid,.setup-summary{grid-template-columns:1fr 1fr}}

.edit-end-preview{display:flex;justify-content:space-between;align-items:center;padding:11px 13px;margin-top:10px;border-radius:10px;background:#f8fafc;border:1px solid #e2e8f0;color:#64748b}
.edit-end-preview strong{color:#17375f;font-size:16px}

/* V18.2 Final Pilot - Print Timetable */
.print-page{display:grid;gap:16px}.print-page-intro{display:flex;align-items:center;justify-content:space-between;gap:20px}.print-page-intro h2{margin:3px 0}.print-page-intro p{margin:0;color:#64748b;max-width:760px}.print-page-note{padding:14px 18px;border:1px solid #dbe4ee;border-radius:12px;background:#f8fbff;white-space:nowrap}.report-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.report-card{display:flex;gap:16px;padding:20px}.report-icon{width:48px;height:48px;border-radius:14px;background:#eef4ff;display:grid;place-items:center;font-size:24px;flex:0 0 auto}.report-content{min-width:0;flex:1}.report-content h3{margin:2px 0 5px}.report-content p{margin:0 0 13px;color:#64748b;line-height:1.45;font-size:13px}.report-select{width:100%;margin-bottom:12px}.report-actions{display:flex;flex-wrap:wrap;gap:7px}.print-page-help{padding:15px 18px;color:#475569}.print-page-help strong{color:#111827}.save-pulse{box-shadow:0 0 0 3px rgba(37,99,235,.12)}
@media(max-width:850px){.report-grid{grid-template-columns:1fr}.print-page-intro{flex-direction:column;align-items:stretch}.print-page-note{white-space:normal}}

.summary-table th:first-child{width:25mm}.summary-table td{vertical-align:middle!important;text-align:center!important;padding:3px 4px!important}.summary-table td,.summary-table th{font-size:6.5pt!important}.summary-table th small{display:block;font-size:5.3pt;font-weight:400;margin-top:1px}.summary-lesson{line-height:1.35;white-space:nowrap}.summary-lesson b{font-weight:800}.summary-break-line{font-weight:800;text-align:center;border-top:1px dashed #000;border-bottom:1px dashed #000;margin:1px 0;padding:1px 0}

/* Team invitation/member names: plain text, no link/dotted decoration */
.team-person strong,.team-person small,.invite-status-row .team-person strong,.invite-status-row .team-person small{ text-decoration:none!important; border-bottom:0!important; outline:0!important; }

.joined-meta{font-size:10px;opacity:.75;margin-top:3px;font-weight:600}.joined-class-picker label:hover{background:#f7fafc;border-radius:6px}

.room{font-size:10px;color:#64748b;margin-top:2px;line-height:1.2}.classroom-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;color:#475569}

/* V24 focused UX redesign: school creation, subject colour and large-list lesson pickers */
.modal-card.modal-card-wide{width:min(820px,96vw)}
.workspace-create-intro{display:flex;align-items:center;gap:14px;padding:14px 16px;margin-bottom:18px;background:linear-gradient(135deg,#eff6ff,#f8fbff);border:1px solid #dbeafe;border-radius:14px}
.workspace-create-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:#fff;font-size:25px;box-shadow:0 4px 14px rgba(37,99,235,.10)}
.workspace-create-intro strong{display:block;font-size:15px}.workspace-create-intro p{margin:4px 0 0;color:#64748b;font-size:12px;line-height:1.5}.workspace-create-form{margin-top:4px}.workspace-create-note{margin-top:14px}
.subject-form-grid{align-items:start}.subject-color-picker{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #dce1e8;border-radius:11px;background:#fbfcfe}.subject-color-input{width:46px!important;height:42px!important;padding:3px!important;border:1px solid #cfd7e2!important;border-radius:9px!important;background:#fff!important;cursor:pointer}.subject-color-preview{width:42px;height:42px;border-radius:10px;border:1px solid rgba(15,23,42,.12);box-shadow:inset 0 0 0 1px rgba(255,255,255,.45)}.subject-color-code-wrap{display:flex;align-items:center;gap:8px;min-width:0}.subject-color-code-wrap>span{font-size:10px;font-weight:800;letter-spacing:.08em;color:#7b8798}.subject-color-code{width:115px!important;padding:9px 10px!important;font-family:ui-monospace,SFMono-Regular,Menlo,monospace!important;font-weight:700!important;text-transform:uppercase}.field-hint{font-size:11px;color:#7b8798;margin-top:6px;line-height:1.45}
.multi-picker{border:1px solid #dce4ee;border-radius:13px;background:#fff;overflow:hidden}.multi-picker-toolbar{display:flex;gap:8px;align-items:center;padding:9px;background:#f8fafc;border-bottom:1px solid #e8edf3}.multi-picker-search{flex:1;min-width:180px;display:flex;align-items:center;gap:7px;padding:0 10px;border:1px solid #d7dee8;border-radius:9px;background:#fff}.multi-picker-search>span{font-size:18px;color:#8a97a8;line-height:1}.multi-picker-search input{border:0!important;box-shadow:none!important;outline:0!important;padding:9px 2px!important;min-width:0;background:transparent!important}.multi-picker-actions{display:flex;gap:6px}.mini-btn{border:1px solid #d7dee8;background:#fff;color:#344054;border-radius:8px;padding:7px 9px;font-size:10px;font-weight:700;cursor:pointer;white-space:nowrap}.mini-btn:hover{border-color:#a9c4f8;background:#f7fbff}.multi-picker-summary{padding:7px 11px;font-size:10px;font-weight:800;color:#64748b;background:#fff;border-bottom:1px solid #eef2f6}.multi-picker-list{max-height:190px!important;overflow:auto;padding:7px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 6px;align-content:start}.multi-picker-row{margin:0!important;padding:7px 8px!important;border-radius:8px;border:1px solid transparent;min-width:0;display:flex!important;align-items:center;gap:7px;background:#fff;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,box-shadow .15s ease}.multi-picker-row:hover{background:#f7faff;border-color:#dbe7f7}.multi-picker-row:has(input:checked){background:#eff6ff;border-color:#bfdbfe;box-shadow:inset 3px 0 0 #2563eb}.multi-picker-row>input{flex:0 0 auto;margin:0!important}.multi-picker-row>span{display:flex;align-items:baseline;gap:6px;min-width:0;overflow:hidden}.multi-picker-row strong{font-size:11px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.multi-picker-row small{font-size:9px;color:#7b8798;white-space:nowrap;flex:0 0 auto}.multi-picker-row[hidden]{display:none!important}.multi-picker-empty{padding:18px;text-align:center;grid-column:1/-1}.allocation-lesson-note{margin-bottom:10px}.allocation-selected-count{font-size:11px;color:#64748b;margin-top:7px}
@media(max-width:900px){.multi-picker-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.multi-picker-toolbar{align-items:stretch;flex-direction:column}.multi-picker-actions{width:100%}.mini-btn{flex:1}.multi-picker-list{grid-template-columns:1fr;max-height:180px!important}.multi-picker-row strong{font-size:12px}.subject-color-picker{flex-wrap:wrap}.workspace-create-intro{align-items:flex-start}}

/* V25 UX feedback layer */
.ux-toast{position:fixed;right:24px;bottom:24px;z-index:10000;min-width:280px;max-width:420px;padding:13px 16px;border-radius:12px;background:var(--card,#fff);color:var(--text,#172033);border:1px solid var(--border,#dfe5ee);box-shadow:0 12px 36px rgba(20,35,60,.16);transform:translateY(18px);opacity:0;pointer-events:none;transition:.2s;font-size:14px;font-weight:600}
.ux-toast.show{opacity:1;transform:translateY(0)}.ux-toast.success{border-left:4px solid #16a34a}.ux-toast.error{border-left:4px solid #dc2626}.ux-toast.info{border-left:4px solid #2563eb}
.ux-progress-overlay{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.24);backdrop-filter:blur(2px)}
.ux-progress-overlay[hidden]{display:none}.ux-progress-card{width:min(460px,calc(100vw - 32px));padding:24px;border-radius:18px;background:var(--card,#fff);border:1px solid var(--border,#dfe5ee);box-shadow:0 24px 70px rgba(15,23,42,.24)}
.ux-progress-title{font-size:18px;font-weight:750;margin-bottom:6px}.ux-progress-message{font-size:13px;opacity:.72;margin-bottom:16px}
.ux-progress-track{height:7px;background:#e8edf5;border-radius:999px;overflow:hidden}.ux-progress-bar{height:100%;width:35%;border-radius:999px;background:var(--primary,#2563eb);animation:uxProgress 1.2s ease-in-out infinite}
.ux-progress-spinner{width:28px;height:28px;border:3px solid #dbe4f2;border-top-color:var(--primary,#2563eb);border-radius:50%;animation:uxSpin .8s linear infinite;margin-bottom:14px}
button[data-ux-busy="1"]{pointer-events:none;opacity:.68;cursor:wait}
@keyframes uxSpin{to{transform:rotate(360deg)}}@keyframes uxProgress{0%{transform:translateX(-120%);width:24%}50%{width:42%}100%{transform:translateX(330%);width:24%}}

/* V26 sortable constraint tables */
.table-sort{appearance:none;border:0;background:transparent;font:inherit;font-weight:700;color:inherit;padding:0;cursor:pointer;display:inline-flex;align-items:center;gap:4px;text-transform:inherit}
.table-sort:hover{color:var(--primary,#2563eb)}
.sort-arrow{font-size:12px;opacity:.35}.sort-arrow.active{opacity:1;color:var(--primary,#2563eb)}
.sortable-table th{white-space:nowrap}


/* V28 Final Production: reports and export UX */
.overall-report-switch{margin-top:16px;padding-top:15px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:16px}
.overall-report-switch>div{display:flex;flex-direction:column;gap:3px}.overall-report-switch strong{font-size:14px}.overall-report-switch span{font-size:12px;color:var(--muted)}
.occupancy-table td{vertical-align:middle}.occupancy-meter{display:inline-block;width:110px;height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden;margin-right:8px;vertical-align:middle}.occupancy-meter span{display:block;height:100%;background:var(--primary);border-radius:99px}
.overall-export-sheet{width:100%;background:#fff}.overall-export-sheet .overall-card{box-shadow:none;border:0;padding:0}.overall-export-sheet .overall-scroll{overflow:visible}.overall-export-sheet .overall-grid,.overall-export-sheet .lesson-grid{width:100%;min-width:0;font-size:7px}.overall-export-sheet .overall-grid th,.overall-export-sheet .overall-grid td,.overall-export-sheet .lesson-grid th,.overall-export-sheet .lesson-grid td{min-width:0;height:20px;padding:2px;border:1px solid #000}.overall-export-sheet .overall-grid .ov-rowhead{position:static;min-width:0;background:#fff}.overall-export-sheet .ov-teacher{font-size:6px}.overall-export-sheet .overall-grid thead th{position:static;background:#fff}.overall-export-sheet .overall-card{overflow:visible}
@media(max-width:700px){.overall-report-switch{align-items:flex-start;flex-direction:column}.overall-report-switch .btn{width:100%}.occupancy-meter{width:80px}}


/* V28.1: immediate visual feedback for generation buttons.
   No additional modal/progress UI is introduced. */
.btn.is-busy,
.btn[data-action="regenerate"].is-busy{
  opacity: .72 !important;
  cursor: wait !important;
  filter: saturate(.72);
  box-shadow: none !important;
}
.btn.is-busy::after{
  content:"";
  display:inline-block;
  width:12px;
  height:12px;
  margin-left:8px;
  vertical-align:-1px;
  border:2px solid currentColor;
  border-right-color:transparent;
  border-radius:50%;
  animation:v28ButtonSpin .7s linear infinite;
}
@keyframes v28ButtonSpin{to{transform:rotate(360deg)}}

/* V28.2: Classroom is a normal Overall View tab, not a separate report block. */
.view-switch{display:flex;gap:8px;flex-wrap:wrap}
.occupancy-table .occupancy-meter{display:inline-block;width:72px;height:7px;margin-right:7px;vertical-align:middle;background:#e8edf5;border-radius:999px;overflow:hidden}
.occupancy-table .occupancy-meter>span{display:block;height:100%;border-radius:999px;background:#2563eb}

/* ===================================================
   V31 — SIMPLE TEACHER AVAILABILITY GRID
   =================================================== */
.teacher-availability-card{margin-bottom:16px;overflow:hidden}
.teacher-availability-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.teacher-availability-head h3{margin:0 0 5px}
.teacher-availability-head p{margin:0;max-width:760px;line-height:1.5}
.teacher-availability-select{min-width:300px}
.teacher-availability-select label{display:block;font-size:12px;font-weight:700;margin-bottom:6px;color:#475569}
.teacher-availability-select select{width:100%;padding:10px 12px;border:1px solid #d7dee8;border-radius:10px;background:#fff;font:inherit}
.availability-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;border-top:1px solid #eef2f7;border-bottom:1px solid #eef2f7;margin-top:16px}
.availability-legend,.availability-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.availability-legend span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#475569}
.availability-dot{display:inline-flex;width:24px;height:24px;border-radius:50%;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.availability-dot.green{background:#dcfce7;color:#15803d}
.availability-dot.red{background:#fee2e2;color:#dc2626}
.availability-grid-wrap{overflow:auto;border:1px solid #e2e8f0;border-radius:12px;margin-top:14px}
.availability-grid{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;background:#fff}
.availability-grid th,.availability-grid td{border-right:1px solid #e2e8f0;border-bottom:1px solid #e2e8f0;text-align:center}
.availability-grid tr:last-child th,.availability-grid tr:last-child td{border-bottom:0}
.availability-grid th:last-child,.availability-grid td:last-child{border-right:0}
.availability-grid thead th{background:#f8fafc;padding:10px 8px;font-size:13px;font-weight:800;color:#334155;position:sticky;top:0;z-index:2}
.availability-grid thead th small{display:block;margin-top:3px;font-size:10px;font-weight:500;color:#94a3b8;white-space:nowrap}
.availability-grid .availability-day{text-align:left;min-width:110px;padding:12px 14px;background:#fff;font-size:13px;color:#1e293b;position:sticky;left:0;z-index:3}
.availability-grid td{height:54px;padding:6px;background:#fff}
.availability-cell{width:36px;height:36px;border-radius:50%;border:1px solid transparent;cursor:pointer;font-size:18px;font-weight:800;line-height:1;transition:transform .12s ease,background .12s ease,border-color .12s ease;display:inline-flex;align-items:center;justify-content:center}
.availability-cell:hover{transform:scale(1.08)}
.availability-cell:focus-visible{outline:3px solid rgba(37,99,235,.25);outline-offset:2px}
.availability-cell.is-available{background:#dcfce7;color:#15803d;border-color:#bbf7d0}
.availability-cell.is-unavailable{background:#fee2e2;color:#dc2626;border-color:#fecaca}
.availability-status{padding:11px 2px 4px;color:#64748b;font-size:13px}
.availability-note{margin-top:10px;font-size:13px;line-height:1.5}
@media (max-width:800px){
 .teacher-availability-head,.availability-toolbar{flex-direction:column;align-items:stretch}
 .teacher-availability-select{min-width:0}
 .availability-actions{justify-content:flex-start}
}

/* ===================================================
   V32 — RULES & RESTRICTIONS EXPERIENCE REDESIGN
   Presentation only: existing constraint and availability logic is unchanged.
   =================================================== */
.constraints-page{min-width:0;overflow:visible}
.constraints-page .teacher-availability-card{margin-bottom:24px}
.teacher-availability-card{box-shadow:0 2px 14px rgba(15,23,42,.035)}
.teacher-availability-head{align-items:center}
.teacher-availability-head p{max-width:850px}
.teacher-availability-select{width:320px;min-width:0}
.availability-toolbar{margin-top:14px;padding:12px 0}
.availability-grid-wrap{margin-top:12px;overflow:auto;max-width:100%}
.availability-grid{min-width:0;table-layout:fixed}
.availability-grid th,.availability-grid td{min-width:0}
.availability-grid thead th{padding:9px 6px}
.availability-grid .availability-day{width:110px;min-width:110px;padding:10px 13px}
.availability-grid td{height:48px;padding:5px}
.availability-cell{width:32px;height:32px;font-size:16px}
.availability-status{padding:9px 2px 2px}
.availability-note{margin-top:8px}

.advanced-rules-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 2px 14px rgba(15,23,42,.035);overflow:hidden}
.advanced-rules-head{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:20px 20px 16px}
.advanced-rules-head h3{margin:2px 0 4px;font-size:19px}
.advanced-rules-head p{margin:0;font-size:13px}
.section-kicker{font-size:10px;font-weight:800;letter-spacing:.12em;color:var(--primary);margin-bottom:5px}
.advanced-add-btn{white-space:nowrap;min-width:175px}
.constraint-tabs{display:flex;gap:4px;padding:0 20px;border-bottom:1px solid var(--border);background:#fff}
.constraint-tab{position:relative;border:0;background:transparent;color:#64748b;padding:13px 16px 12px;font-weight:700;cursor:pointer;border-radius:9px 9px 0 0}
.constraint-tab:hover{background:#f8fafc;color:var(--text)}
.constraint-tab.active{color:var(--primary)}
.constraint-tab.active::after{content:"";position:absolute;left:10px;right:10px;bottom:-1px;height:3px;background:var(--primary);border-radius:3px 3px 0 0}
.constraint-tab span{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:20px;margin-left:6px;padding:0 6px;border-radius:999px;background:#eef2ff;color:#475569;font-size:11px}
.constraint-tab.active span{background:#dbeafe;color:#1d4ed8}
.advanced-rules-panel{padding:18px 20px 20px}
.advanced-rules-panel-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:12px}
.advanced-rules-panel-head strong{font-size:15px}
.advanced-rules-panel-head p{margin:0;font-size:12px}
.advanced-rule-count{margin-left:8px;font-size:12px;color:var(--muted)}
.constraints-table-wrap{max-width:100%;min-width:0}
.constraints-table{min-width:0}
.constraints-table th,.constraints-table td{white-space:nowrap}
.constraints-table .actions{flex-wrap:nowrap}
@media(max-width:900px){
 .advanced-rules-head{align-items:flex-start}
 .teacher-availability-head{align-items:stretch}
 .teacher-availability-select{width:auto}
 .availability-grid{min-width:760px}
}
@media(max-width:650px){
 .advanced-rules-head{flex-direction:column}
 .advanced-add-btn{width:100%}
 .constraint-tabs{padding:0 12px;overflow-x:auto}
 .constraint-tab{flex:1 0 auto}
 .advanced-rules-panel{padding:14px 12px 16px}
 .advanced-rules-panel-head{display:block}
 .advanced-rules-panel-head p{margin-top:4px}
}