/* Management timetable builder. Dense administrative software: the grid is the screen.
   Only Management sees these styles; no other timetable view uses this file.
   Scale: 4px spacing steps, one radius, one border colour (--line), two shadow levels,
   one secondary text grey that still reads at 11-12px. */
:root{--tb-radius:4px;--tb-shadow-1:0 1px 2px rgba(0,0,0,.08);--tb-shadow-2:0 4px 14px rgba(0,0,0,.14);--tb-muted:#4d5f5a;--tb-surface:#fbfcfc}
.tb-page .page-title.tb-title{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin:4px 0 8px;padding:0}
.tb-page .tb-title h1{font-size:1.3rem;margin:0;line-height:1.2}
.tb-title-note{font-size:.75rem;color:var(--tb-muted);display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}
.tb-title-note .text-button{font-size:.75rem}
.tb-header{display:flex;flex-wrap:wrap;align-items:center;gap:4px 20px;
 padding:8px 12px;margin:0 0 8px;background:#fff;border:1px solid var(--line);border-radius:4px}
.tb-status{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.9rem;flex:0 0 auto}
.tb-header>.tb-facts{flex:1 1 22rem}
.tb-header-actions{flex:0 0 auto;margin-left:auto}
.tb-error,.tb-status strong{font-size:1rem}
.tb-sub{color:var(--tb-muted);font-size:.8rem}
.tb-badge{display:inline-block;padding:4px 8px;border-radius:var(--tb-radius);font-size:.7rem;font-weight:700;letter-spacing:.06em}
.tb-badge.is-published{background:#e6f2ea;color:#1d5c3f;border:1px solid #bcd9c8}
.tb-badge.is-draft{background:#fdf1dc;color:#8a5b13;border:1px solid #edd3a3}
.tb-badge.is-archived{background:#eef1f3;color:#54626a;border:1px solid var(--line)}
.tb-change-count{border:1px solid #edd3a3;background:#fdf7ec;color:#8a5b13;border-radius:var(--tb-radius);padding:4px 8px;font-size:.78rem;cursor:pointer}
.tb-save{color:var(--tb-muted);font-size:.78rem}
.tb-save.is-bad{color:#a4302a}
.tb-facts{display:flex;flex-wrap:wrap;gap:4px 16px;margin:0;font-size:.76rem;color:var(--tb-muted);min-width:0}
.tb-facts div{display:flex;gap:4px}
.tb-facts dt{font-weight:600}
.tb-facts dd{margin:0}
.tb-header-actions{display:flex;flex-wrap:wrap;gap:4px;justify-content:flex-end}
.tb-header-actions button{padding:4px 8px;font-size:.85rem}
.tb-check{border-radius:var(--tb-radius);font-weight:600}
.tb-check.is-good{background:#e6f2ea;border:1px solid #bcd9c8;color:#1d5c3f}
.tb-check.is-bad{background:#fbe9e7;border:1px solid #eec4bf;color:#a4302a}
.tb-error{grid-column:1/-1;margin:0;color:#a4302a;font-size:.85rem}

.tb-tabs{margin-bottom:8px;overflow-x:auto}
.tb-tabs button{font-size:.85rem;padding:4px 12px}

/* ---------- workspace ---------- */
.tb-workspace{display:grid;grid-template-columns:minmax(180px,15%) minmax(0,1fr) minmax(240px,22%);gap:8px;align-items:start}
.tb-workspace.is-two{grid-template-columns:minmax(0,1fr) minmax(240px,22%)}
.tb-strip{margin:0 0 8px;padding:4px 8px;border:1px solid #bcd9c8;border-left:3px solid #2f8b5c;border-radius:var(--tb-radius);background:#eaf6ef;color:#1d5c3f;font-size:.8rem;font-weight:600}
.tb-workspace .tb-tray.is-closed,.tb-workspace .tb-inspector.is-closed{align-self:start}
.tb-grid-area{min-width:0}
/* Height is set from the viewport at render time (see fitToViewport); position + z-index give
   the region its own stacking context so its sticky header can never rise above the app bar. */
.tb-grid-scroll{overflow:auto;position:relative;z-index:0;border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff;max-height:none}
.tb-fill{position:relative;z-index:0;max-height:none}
.tb-page .table-scroll.tb-fill{max-height:none}
.tb-frozen th:first-child,.tb-frozen td:first-child{position:sticky;left:0;background:#fff;z-index:1;box-shadow:1px 0 0 var(--line)}
.tb-frozen thead th:first-child{z-index:4;background:#f2f5f4}
.tb-frozen tbody tr:hover td:first-child{background:#f7f9f8}

table.tb-grid{border-collapse:separate;border-spacing:0;width:100%;font-size:.8rem;table-layout:fixed}
table.tb-grid th,table.tb-grid td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);vertical-align:top}
table.tb-grid thead th{position:sticky;top:0;z-index:3;background:#f2f5f4;text-align:left;padding:4px 8px;font-size:.78rem;letter-spacing:.02em}
table.tb-grid tbody th.tb-time{position:sticky;left:0;z-index:2;background:#f7f9f8;width:8.5rem;padding:4px 8px;text-align:left;font-weight:600;font-size:.78rem}
table.tb-grid tbody th.tb-time small{display:block;color:var(--tb-muted);font-weight:400;font-size:.7rem}
table.tb-grid tbody th.tb-time em{display:block;color:var(--tb-muted);font-style:normal;font-size:.72rem}
table.tb-grid thead th:first-child{z-index:4;left:0}
.tb-cell{padding:4px;min-height:3.2rem;background:#fff}
.tb-cell.is-free{background:repeating-linear-gradient(45deg,#fbfcfc,#fbfcfc 6px,#f4f7f6 6px,#f4f7f6 12px)}
.tb-cell-band{background:#f2f5f4;color:var(--tb-muted);font-size:.75rem;padding:4px 8px}
tr.tb-band th,tr.tb-band td{background:#eef1f0;border-top:2px solid var(--line);border-bottom:2px solid var(--line);color:var(--tb-muted);font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;padding:2px 8px;text-align:left;line-height:1.4;height:auto}
tr.tb-band th small{display:inline;margin-left:4px;font-size:.72rem;letter-spacing:0;text-transform:none;font-weight:400}
tr.tb-band td span{opacity:.75}
.tb-empty{display:block;color:#6f7f7a;font-size:.7rem;padding:8px 4px}

.tb-card{display:block;width:100%;text-align:left;padding:4px 4px;margin-bottom:4px;border:1px solid var(--line);
 border-left:3px solid var(--lesson-accent,#7d9a8f);border-radius:var(--tb-radius);background:var(--lesson-bg,#fff);cursor:pointer;line-height:1.25;
 overflow-wrap:anywhere;min-width:0}
.tb-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:4px}
.tb-card-line{display:block;margin-top:4px;line-height:1.3}
.tb-card-line:empty{display:none}
.tb-lock{flex:0 0 auto;color:#8a5b13;line-height:0;padding-top:4px}
.tb-card.is-locked{border-color:#c98b1c;box-shadow:inset 0 0 0 1px #edd3a3}
.tb-card.is-fixed{border-style:dashed}
.tb-chip-more{cursor:help;font-weight:700}
.tb-chip-room{color:var(--tb-muted)}
/* Subject palette — one family per card, the same classes the Print & share view receives.
   Backgrounds step through lightness as well as hue so greyscale printing still separates them. */
.tb-page .subject-c1{--lesson-bg:#e7eef8 !important;--lesson-accent:#456a9a !important}
.tb-page .subject-c2{--lesson-bg:#ebe8f4 !important;--lesson-accent:#665a9b !important}
.tb-page .subject-c3{--lesson-bg:#e3f0e8 !important;--lesson-accent:#387a55 !important}
.tb-page .subject-c4{--lesson-bg:#f7f0dd !important;--lesson-accent:#96762e !important}
.tb-page .subject-c5{--lesson-bg:#dff0ef !important;--lesson-accent:#337878 !important}
.tb-page .subject-c6{--lesson-bg:#f8e8eb !important;--lesson-accent:#a04f64 !important}
.tb-page .subject-c7{--lesson-bg:#f0e4f1 !important;--lesson-accent:#79508b !important}
.tb-page .subject-c8{--lesson-bg:#faebdf !important;--lesson-accent:#a75f34 !important}
.tb-page .subject-c9{--lesson-bg:#f8f3d9 !important;--lesson-accent:#8b761b !important}
.tb-page .subject-c10{--lesson-bg:#ebeaf0 !important;--lesson-accent:#67657c !important}
.tb-page .subject-c11{--lesson-bg:#f1f3f2 !important;--lesson-accent:#6d7a76 !important}
.tb-page .subject-c12{--lesson-bg:#f3f0ea !important;--lesson-accent:#81725e !important}
.tb-page .tt-slot.filled[class*="subject-c"]{background:var(--lesson-bg) !important;border-left-color:var(--lesson-accent) !important}
.tb-card:last-child{margin-bottom:0}
.tb-card:hover{border-color:#9db3ab;box-shadow:var(--tb-shadow-1)}
.tb-card:focus-visible{outline:2px solid var(--green);outline-offset:1px}
.tb-card[draggable=true]{cursor:grab}
.tb-card-title{display:block;font-size:.8rem;font-weight:700}
.tb-card-title em{font-style:normal;font-weight:600;font-size:.72rem;color:var(--tb-muted);text-transform:uppercase;letter-spacing:.04em}
.tb-card.is-selected{border-color:var(--green);box-shadow:inset 0 0 0 1px var(--green)}
.tb-card.is-multi{box-shadow:inset 0 0 0 2px #8a5b13}
.tb-card.is-conflict{background:#fbe9e7;border-color:#d98d84}
.tb-card.is-highlight{animation:tb-flash 1.6s ease-out 2;border-color:#8a5b13}
.tb-card.is-activity{background:#eef1f3;border-left-color:#7d8c94}
@keyframes tb-flash{0%,100%{box-shadow:none}50%{box-shadow:0 0 0 3px #f0d49b}}
.tb-chip{display:inline-block;margin:4px 4px 0 0;padding:0 4px;border:1px solid var(--line);border-radius:var(--tb-radius);
 background:rgba(255,255,255,.72);font-size:.7rem;color:#334541;cursor:pointer;max-width:100%;white-space:normal;overflow-wrap:anywhere;text-align:left;vertical-align:top}
.tb-chip:hover{border-color:var(--green);color:var(--green)}
.tb-chip.is-missing{color:#a4302a;border-style:dashed;cursor:default}

/* Drag targets: colour plus a border pattern, never colour alone. */
.tb-drop-ok{outline:2px solid #2f8b5c;outline-offset:-2px;background:#eaf6ef}
.tb-drop-warn{outline:2px dashed #c98b1c;outline-offset:-2px;background:#fdf6e8}
.tb-drop-blocked{outline:2px dotted #a4302a;outline-offset:-2px;background:#fbeceb;cursor:not-allowed}

/* ---------- toolbar ---------- */
.tb-toolbar{display:flex;flex-wrap:wrap;align-items:flex-end;gap:8px;margin-bottom:8px;padding:8px;border:1px solid var(--line);border-radius:var(--tb-radius);background:var(--tb-surface)}
.tb-perspective{display:inline-flex;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.tb-perspective button{border:0;background:#fff;padding:4px 12px;font-size:.82rem;cursor:pointer}
.tb-perspective button[aria-pressed=true]{background:var(--green);color:#fff}
.tb-field{display:flex;flex-direction:column;gap:4px;font-size:.75rem;color:var(--tb-muted)}
.tb-field span{font-weight:600}
.tb-field select,.tb-field input{font-size:.85rem;padding:4px 4px;border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff}
.tb-search{flex:1 1 16rem}
.tb-filters{font-size:.8rem}
.tb-filters summary{cursor:pointer;padding:4px 8px;border:1px solid var(--line);border-radius:4px;background:#fff}
.tb-filter-grid{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;padding:8px;border:1px solid var(--line);border-top:0;background:#fbfcfc}
.tb-search-results{list-style:none;margin:0 0 8px;padding:4px;display:flex;flex-wrap:wrap;gap:4px;border:1px solid var(--line);border-radius:4px;background:#fff}
.tb-search-results button{border:1px solid var(--line);border-radius:var(--tb-radius);background:#f7f9f8;padding:4px 8px;text-align:left;cursor:pointer}
.tb-search-results strong{display:block;font-size:.8rem}
.tb-search-results small{color:var(--tb-muted);font-size:.72rem}
.tb-search-empty{font-size:.8rem;color:var(--tb-muted)}
.tb-bulk{display:flex;align-items:center;gap:8px;padding:4px 8px;margin-bottom:4px;border:1px solid #edd3a3;background:#fdf7ec;border-radius:4px;font-size:.82rem}

/* ---------- tray ---------- */
.tb-tray{border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff;padding:8px;position:sticky;top:.5rem;max-height:78vh;overflow:auto}
.tb-tray.is-closed{padding:4px}
.tb-tray-head{display:flex;flex-direction:column;gap:4px;margin-bottom:8px}
.tb-tray-head button,.tb-tray.is-closed button,.tb-inspector.is-closed button{border:0;background:none;font-weight:700;font-size:.85rem;cursor:pointer;text-align:left;padding:0;color:inherit}
.tb-tray-count{font-size:.75rem}
.tb-tray-count.is-good{color:#1d5c3f}
.tb-tray-count.is-bad{color:#8a5b13;font-weight:600}
.tb-tray-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.tb-tray-card{border:1px solid var(--line);border-left:3px solid #c98b1c;border-radius:var(--tb-radius);padding:4px 8px;background:#fdf9f1;font-size:.78rem;cursor:grab}
.tb-tray-card strong{display:block}
.tb-tray-card small{display:block;color:var(--tb-muted);font-size:.7rem}
.tb-tray-clear{font-size:.78rem;color:var(--tb-muted);margin:0}

/* ---------- inspector ---------- */
.tb-inspector{border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff;padding:8px;position:sticky;top:.5rem;max-height:82vh;overflow:auto}
.tb-inspector.is-closed{padding:4px}
.tb-inspector-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;border-bottom:1px solid var(--line);padding-bottom:4px;margin-bottom:8px}
.tb-inspector-head h2{margin:0;font-size:1rem}
.tb-inspector-empty{font-size:.8rem;color:var(--tb-muted)}
.tb-inspector-facts{margin:0 0 8px;display:grid;gap:4px;font-size:.78rem}
.tb-inspector-facts div{display:grid;grid-template-columns:8rem minmax(0,1fr);gap:8px}
.tb-inspector-facts dt{color:var(--tb-muted)}
.tb-inspector-facts dd{margin:0;font-weight:600}
.tb-validation h3,.tb-finder-results h3{margin:4px 0 4px;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;color:var(--tb-muted)}
.tb-validation ul{list-style:none;margin:0 0 4px;padding:0;font-size:.78rem;display:grid;gap:4px}
.tb-validation li.is-good{color:#1d5c3f}
.tb-validation li.is-bad{color:#a4302a;font-weight:600}
.tb-hard{margin:4px 0;color:#a4302a;font-size:.78rem}
.tb-soft{margin:4px 0;color:#8a5b13;font-size:.78rem}
.tb-ok{margin:4px 0;color:#1d5c3f;font-size:.78rem}
.tb-notes{font-size:.78rem;background:#f7f9f8;border-left:3px solid var(--line);padding:4px 8px}
.tb-inspector-actions{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
.tb-inspector-actions button{font-size:.78rem;padding:4px 8px}
.tb-finder-results ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.tb-finder-results button{display:grid;grid-template-columns:minmax(0,1fr) auto;width:100%;text-align:left;gap:4px;
 border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff;padding:4px 8px;cursor:pointer;font-size:.76rem}
.tb-finder-results strong{grid-column:1}
.tb-finder-results small{grid-column:1;color:var(--tb-muted);font-size:.7rem}
.tb-finder-results em{grid-column:2;grid-row:1/3;align-self:center;font-style:normal;font-weight:700;color:var(--tb-muted)}
.tb-verdict-ok{border-left:3px solid #2f8b5c}
.tb-verdict-warn{border-left:3px solid #c98b1c}
.tb-verdict-blocked{border-left:3px solid #a4302a;opacity:.72}

/* ---------- panels and tables ---------- */
.tb-panel{background:#fff;border:1px solid var(--line);border-radius:var(--tb-radius);padding:12px 16px;margin-bottom:8px}
.tb-panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
.tb-panel-head h2{margin:0 0 4px;font-size:1.05rem}
.tb-panel-head p{margin:0 0 8px;color:var(--tb-muted);font-size:.84rem;max-width:62ch}
.tb-stat{font-size:.82rem;color:var(--tb-muted);margin:0}
table.tb-table{border-collapse:collapse;width:100%;font-size:.8rem}
table.tb-table th,table.tb-table td{border-bottom:1px solid var(--line);padding:4px 8px;text-align:left;vertical-align:middle}
table.tb-table thead th{position:sticky;top:0;background:#f2f5f4;font-size:.75rem;letter-spacing:.02em;z-index:1}
table.tb-table tbody tr:hover{background:#f7f9f8}
table.tb-table td small{color:var(--tb-muted)}
.tb-table .is-short{color:#a4302a;font-weight:600}
.tb-table tr.is-short td{background:#fdf3f2}
.tb-subject-cell{white-space:nowrap}
.tb-subject-cell .tb-chip{cursor:default;border-left:3px solid var(--lesson-accent,#7d9a8f);background:var(--lesson-bg,#fff)}
.tb-more{display:inline-block;vertical-align:top}
.tb-more summary{display:inline-block;list-style:none;cursor:pointer;font-size:.7rem;color:var(--green);border:1px dashed var(--line);border-radius:var(--tb-radius);padding:0 4px;margin-top:4px}
.tb-more summary::-webkit-details-marker{display:none}
.tb-more[open] summary{margin-bottom:4px}
.tb-more-list{display:block;white-space:normal;max-width:24rem}
table.tb-teachers{table-layout:fixed;min-width:64rem}
.tb-col-name{width:13rem}.tb-col-code{width:4.5rem}.tb-col-dept{width:10rem}.tb-col-subjects{width:18rem}.tb-col-num{width:5.2rem}
.tb-dept-cell{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tb-teachers td small{display:block;font-size:.72rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tb-mini{font-size:.76rem;padding:4px 4px;border:1px solid var(--line);border-radius:var(--tb-radius);max-width:8rem}
input.tb-mini[type=number]{width:3.6rem}
/* Levels come from data attributes, not inline styles: the app is served under a strict
   Content Security Policy that blocks style attributes. */
.tb-bar{display:block;position:relative;height:1rem;background:#eef1f3;border-radius:var(--tb-radius);min-width:5rem}
.tb-bar::before{content:"";position:absolute;inset:0 auto 0 0;width:0;background:#bcd9c8;border-radius:var(--tb-radius)}
.tb-bar[data-fill="1"]::before{width:10%}.tb-bar[data-fill="2"]::before{width:20%}.tb-bar[data-fill="3"]::before{width:30%}
.tb-bar[data-fill="4"]::before{width:40%}.tb-bar[data-fill="5"]::before{width:50%}.tb-bar[data-fill="6"]::before{width:60%}
.tb-bar[data-fill="7"]::before{width:70%}.tb-bar[data-fill="8"]::before{width:80%}.tb-bar[data-fill="9"]::before{width:90%}
.tb-bar[data-fill="10"]::before{width:100%}
.tb-bar span{position:relative;font-size:.7rem;padding-left:4px;line-height:1rem}
.tb-heat{white-space:nowrap}
.tb-heat-cell{display:inline-flex;flex-direction:column;align-items:center;width:1.55rem;margin-right:4px;border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff}
.tb-heat-cell[data-heat="1"]{background:#eaf6ef}.tb-heat-cell[data-heat="2"]{background:#d5ecdf}
.tb-heat-cell[data-heat="3"]{background:#bcdfcb}.tb-heat-cell[data-heat="4"]{background:#9fd0b4}
.tb-heat-cell[data-heat="5"]{background:#82c19d}
.tb-heat-cell em{font-style:normal;font-size:.72rem;color:var(--tb-muted)}
.tb-heat-cell b{font-size:.72rem}
.tb-note{font-size:.75rem;color:var(--tb-muted);margin:4px 0 0;max-width:78ch}

.tb-availability{margin-top:12px;border-top:1px solid var(--line);padding-top:8px}
.tb-availability h3{margin:0 0 4px;font-size:.95rem}
.tb-avail td{text-align:center}
.tb-avail td.is-busy{background:#f2f5f4;font-size:.7rem;color:var(--tb-muted)}
.tb-activity-form{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;margin-top:8px;padding:8px;border:1px solid var(--line);border-radius:4px;background:#fbfcfc}
.tb-activity-form h4{margin:0;flex-basis:100%;font-size:.85rem}
.tb-activity-list{list-style:none;margin:8px 0 0;padding:0;font-size:.8rem;display:grid;gap:4px}

.tb-auto,.tb-repair{border-left:3px solid #c98b1c}
.tb-auto-form{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-start;margin:8px 0}
.tb-preserve{border:1px solid var(--line);border-radius:4px;padding:4px 8px;font-size:.78rem}
.tb-preserve legend{font-weight:600;font-size:.75rem}
.tb-preserve label{display:block}
.tb-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(20rem,1fr));gap:8px}
.tb-option{border:1px solid var(--line);border-radius:4px;padding:8px 8px;background:#fbfcfc}
.tb-option.is-chosen{border-color:var(--green);box-shadow:inset 0 0 0 1px var(--green)}
.tb-option h3{margin:0 0 4px;font-size:.9rem}
.tb-quality{margin:0 0 4px;font-weight:700}
.tb-option ul{margin:0 0 4px;padding-left:16px;font-size:.8rem;color:var(--tb-muted)}
.tb-option ol,.tb-change-list{font-size:.78rem;color:var(--tb-muted);max-height:14rem;overflow:auto;padding-left:20px}
.tb-unresolved{border-left:3px solid #a4302a;padding-left:8px;font-size:.8rem}

.tb-score{border:1px solid var(--line);border-radius:4px;padding:8px 8px;margin-bottom:8px;background:#fbfcfc}
.tb-score h3{margin:0 0 4px;font-size:1rem}
.tb-score-parts{list-style:none;display:flex;flex-wrap:wrap;gap:4px 16px;margin:0;padding:0;font-size:.8rem;color:var(--tb-muted)}
.tb-score-parts strong{color:#233c36}
.tb-diag{margin-bottom:8px}
.tb-diag h3{margin:0 0 4px;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}
.tb-diag ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.tb-diag button{display:block;width:100%;text-align:left;border:1px solid var(--line);border-radius:var(--tb-radius);background:#fff;padding:4px 8px;cursor:pointer;font-size:.8rem}
.tb-diag button:hover{border-color:var(--green)}
.tb-diag button strong{display:block}
.tb-diag button span{color:var(--tb-muted)}
.tb-diag li{display:flex;gap:8px;align-items:stretch}
.tb-diag li>button:first-child{flex:1 1 auto}
.tb-diag-action{flex:0 0 auto;align-self:center;white-space:nowrap;font-size:.78rem;padding:4px 8px;border:1px solid var(--green);color:var(--green);background:#fff;border-radius:var(--tb-radius);cursor:pointer}
.tb-diag-action:hover{background:#e6f2ea}
.tb-diag-hint{align-self:center;font-size:.72rem;color:var(--tb-muted);white-space:nowrap}
.tb-dialog-body{font-size:.9rem}
.tb-combined{margin-top:12px;border-top:1px solid var(--line);padding-top:8px}
.tb-combined h3{margin:0 0 4px;font-size:.95rem}
.tb-combined>p{font-size:.82rem;color:var(--tb-muted);max-width:70ch}
.tb-diag-critical h3{color:#a4302a}
.tb-diag-critical button{border-left:3px solid #a4302a}
.tb-diag-warning h3{color:#8a5b13}
.tb-diag-warning button{border-left:3px solid #c98b1c}
.tb-diag-info button{border-left:3px solid #7d8c94}

.tb-import,.tb-compare,.tb-audit{margin-top:12px;border-top:1px solid var(--line);padding-top:8px}
.tb-import h3,.tb-compare h3,.tb-audit h3{margin:0 0 4px;font-size:.95rem}
.tb-import-list,.tb-diff{list-style:none;display:flex;flex-wrap:wrap;gap:4px 16px;margin:0 0 4px;padding:0;font-size:.82rem;color:var(--tb-muted)}
.tb-import-list strong,.tb-diff strong{color:#233c36}
.tb-unresolved-list{font-size:.78rem;color:#a4302a}
.tb-finder{margin-top:12px;border-top:1px solid var(--line);padding-top:8px}
.tb-finder h3{margin:0 0 4px;font-size:.95rem}
.tb-free-list{list-style:none;margin:4px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:4px;font-size:.78rem}
.tb-free-list li{display:flex;justify-content:space-between;gap:8px;padding:4px 4px;border:1px solid var(--line);border-radius:var(--tb-radius)}
.tb-free-yes{background:#eaf6ef}
.tb-free-no{color:var(--tb-muted)}
.tb-occupied{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}
.tb-publish-summary,.tb-publish-checks{font-size:.85rem}
.tb-publish-checks{list-style:none;padding:0;display:flex;gap:16px}
.tb-publish-checks .is-bad strong{color:#a4302a}
.tb-publish-checks .is-good strong{color:#1d5c3f}
.tb-details-form{margin-top:8px}
.tb-details-form h4{margin:0;font-size:.85rem}
.tb-field-error{color:#a4302a;font-size:.8rem;margin:4px 0}
.tb-rule-group{margin-top:8px}
.tb-rule-group h3{margin:0 0 4px;font-size:.9rem}

/* ---------- interaction (review section C) ---------- */
.tb-quiet-link{border:0;background:none;color:var(--tb-muted);font-size:.78rem;text-decoration:underline;cursor:pointer;padding:0 4px}
.tb-quiet-link:hover{color:#a4302a}
.tb-icon-pair{display:inline-flex;border:1px solid var(--line);border-radius:var(--tb-radius);overflow:hidden}
.tb-icon-pair button{border:0;border-radius:0;background:#fff;padding:4px 8px;line-height:0;color:#334541}
.tb-icon-pair button+button{border-left:1px solid var(--line)}
.tb-icon-pair button:disabled{color:#b3bdb9}
.tb-secondary{display:inline-flex;gap:4px}
.tb-secondary button{background:#fff;border:1px solid var(--line);color:#334541}
.tb-secondary button:hover{border-color:#9db3ab}
.tb-header-actions .tb-primary{margin-left:4px}
.tb-change-list{flex-basis:100%;border-top:1px solid var(--line);padding-top:8px;margin-top:4px}
.tb-change-columns{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:16px}
.tb-change-columns h3{margin:0 0 4px;font-size:.82rem}
.tb-change-columns ol,.tb-change-columns ul{margin:0;padding:0;list-style:none;display:grid;gap:4px;max-height:16rem;overflow:auto;font-size:.8rem}
.tb-change-columns li{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px;padding:4px 4px;border:1px solid var(--line);border-radius:var(--tb-radius);background:#fbfcfc}
.tb-change-columns .tb-kind{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--tb-muted);min-width:3.6rem}
.tb-change-columns .tb-detail{color:var(--tb-muted);font-size:.76rem}
.tb-change-columns li .text-button{margin-left:auto;font-size:.76rem}
@media(max-width:1000px){.tb-change-columns{grid-template-columns:1fr}}
.tb-tabs{display:flex;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:0}
.tb-tab-group{display:flex;align-items:flex-end;gap:4px;padding:0 4px}
.tb-tab-group+.tb-tab-group{border-left:1px solid var(--line);padding-left:12px}
.tb-tab-group-label{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--tb-muted);padding:0 4px 8px 0;align-self:center}
.tb-combo{position:relative;min-width:15rem}
.tb-combo input{width:100%}
.tb-combo-list{position:absolute;z-index:20;left:0;right:0;top:100%;margin:4px 0 0;padding:4px 0;list-style:none;max-height:20rem;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:4px;box-shadow:var(--tb-shadow-2);font-size:.82rem}
.tb-combo-group{padding:4px 8px 4px;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--tb-muted)}
.tb-combo-list [role=option]{padding:4px 8px;cursor:pointer;display:flex;justify-content:space-between;gap:8px}
.tb-combo-list [role=option] small{color:var(--tb-muted);text-align:right}
.tb-combo-list [role=option]:hover,.tb-combo-list [role=option].is-active{background:#e6f2ea}
.tb-combo-list [role=option][aria-selected=true] strong{color:var(--green)}
.tb-toolbar-tools{display:inline-flex;gap:4px;align-items:flex-end;margin-left:auto}
.tb-toolbar-tools>button{font-size:.8rem;padding:4px 8px;background:#fff;border:1px solid var(--line)}
.tb-help{position:relative}
.tb-help summary{list-style:none;cursor:pointer;width:1.9rem;height:1.9rem;border:1px solid var(--line);border-radius:50%;background:#fff;display:grid;place-items:center;font-weight:700;color:#334541}
.tb-help summary::-webkit-details-marker{display:none}
.tb-help-body{position:absolute;right:0;top:110%;z-index:20;width:22rem;background:#fff;border:1px solid var(--line);border-radius:4px;box-shadow:var(--tb-shadow-2);padding:8px 12px;font-size:.78rem}
.tb-help-body h3{margin:0 0 4px;font-size:.8rem}
.tb-help-body dl{margin:0;display:grid;gap:4px}
.tb-help-body dl div{display:grid;grid-template-columns:8.5rem 1fr;gap:8px}
.tb-help-body dt{font-weight:700;color:#334541}
.tb-help-body dd{margin:0;color:#3f4f4a}
.tb-cell.is-cursor{outline:2px solid #1f6f4f;outline-offset:-2px}
.tb-card.is-carrying{opacity:.55;border-style:dashed}
.tb-cell.tb-cand-ok{background:#e4f4ea;box-shadow:inset 0 0 0 2px #2f8b5c;cursor:pointer}
.tb-cell.tb-cand-warn{background:#fbf2e0;box-shadow:inset 0 0 0 2px #c98b1c;cursor:pointer}
.tb-cell.is-pulse{animation:tb-pulse .9s ease-in-out infinite}
@keyframes tb-pulse{0%,100%{box-shadow:inset 0 0 0 2px #2f8b5c}50%{box-shadow:inset 0 0 0 5px #2f8b5c}}
.tb-cell{position:relative}
.tb-cand-score{position:absolute;right:.2rem;bottom:.15rem;font-size:.72rem;font-weight:700;color:#1d5c3f;background:rgba(255,255,255,.85);border-radius:var(--tb-radius);padding:0 4px}
.tb-finder-hint{font-size:.74rem;color:var(--tb-muted);margin:4px 0 4px}
.tb-bulk .tb-bulk-sep{color:var(--tb-muted)}
.tb-bulk button{font-size:.8rem;padding:4px 8px}
.tb-pick-row{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}
.tb-pick-row button{font-size:.72rem;padding:4px 8px;background:#fff;border:1px solid var(--line)}
.tb-preserve p{margin:4px 0 4px;font-size:.76rem;color:var(--tb-muted)}
.tb-preserve small{color:var(--tb-muted)}
.tb-inline-edit{border:1px dashed transparent;background:none;padding:4px 4px;font:inherit;font-size:.8rem;cursor:pointer;border-radius:var(--tb-radius);text-align:left}
.tb-inline-edit:hover{border-color:var(--line);background:#fbfcfc}
.tb-preflight{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:12px;margin:8px 0 8px;font-size:.85rem}
.tb-preflight h3{margin:0 0 4px;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--tb-muted)}
.tb-preflight ul{margin:0;padding-left:16px}
.tb-preflight p{margin:4px 0}
.tb-field-wide{flex:1 1 18rem}
.tb-time-band{font-weight:600;color:var(--tb-muted)}
@media(max-width:1200px){
 .tb-workspace{grid-template-columns:minmax(0,1fr);}
 .tb-tray,.tb-inspector{position:static;max-height:none}
 .tb-inspector{order:3}
}
@media print{
 .tb-header-actions,.tb-tabs,.tb-toolbar,.tb-tray,.tb-inspector,.tb-bulk{display:none}
 .tb-grid-scroll{max-height:none;overflow:visible}
}
table.tb-grid tr.tb-band th small{display:inline}