/* TickTockMaths v2 settings — alpha.16.1 */
.ttm-settings-overlay{display:none;position:fixed;inset:0;background:rgba(26,25,22,.28);z-index:10030;align-items:center;justify-content:center;padding:24px}.ttm-settings-overlay.open{display:flex}.ttm-settings-modal{width:min(620px,calc(100vw - 32px));background:var(--surface,#fff);border:1px solid var(--border,#e2e0d8);border-radius:10px;box-shadow:0 16px 42px rgba(0,0,0,.16);overflow:hidden}.ttm-settings-head{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--border,#e2e0d8)}.ttm-settings-head h2{margin:0;font:700 1rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}.ttm-settings-close{width:32px;height:32px;border:0;background:transparent;border-radius:6px;cursor:pointer;font:400 1.55rem/1 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-settings-close:hover{background:var(--accent-light,#eef2fa);color:var(--accent,#2a5caa)}.ttm-settings-body{padding:20px}.ttm-settings-section+.ttm-settings-section{border-top:1px solid var(--border,#e2e0d8);margin-top:20px;padding-top:20px}.ttm-settings-section-title{font:700 .84rem 'Noto Sans',sans-serif;color:var(--text,#1a1916);margin-bottom:4px}.ttm-settings-section-note{font:400 .75rem/1.45 'Noto Sans',sans-serif;color:var(--muted,#8a8780);margin-bottom:12px}.ttm-settings-days{display:flex;gap:6px;flex-wrap:wrap}.ttm-settings-day{cursor:pointer}.ttm-settings-day input{position:absolute;opacity:0;pointer-events:none}.ttm-settings-day span{display:flex;align-items:center;justify-content:center;min-width:46px;height:34px;padding:0 10px;border:1px solid var(--border,#e2e0d8);border-radius:7px;background:var(--surface,#fff);font:600 .74rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}.ttm-settings-day input:checked+span{border-color:var(--accent,#2a5caa);background:var(--accent-light,#eef2fa);color:var(--accent,#2a5caa)}.ttm-settings-day span:hover{border-color:var(--accent,#2a5caa)}
.ttm-settings-link{margin-top:10px;border:1px solid var(--border,#e2e0d8);background:var(--surface,#fff);border-radius:7px;padding:8px 12px;cursor:pointer;font:600 .74rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}.ttm-settings-link:hover{border-color:var(--accent,#2a5caa);color:var(--accent,#2a5caa);background:var(--accent-light,#eef2fa)}
/* alpha.16 — classes + timetable */
.ttm-settings-modal{width:min(760px,calc(100vw - 32px));max-height:calc(100vh - 48px);display:flex;flex-direction:column}.ttm-settings-body{overflow:auto}.ttm-class-add{display:flex;gap:8px;align-items:center}.ttm-class-add textarea{min-height:54px;min-width:0;flex:1;resize:vertical;border:1px solid var(--border,#e2e0d8);border-radius:7px;padding:0 10px;font:500 .8rem 'Noto Sans',sans-serif;color:var(--text,#1a1916);background:var(--surface,#fff)}.ttm-class-add textarea:focus{outline:2px solid var(--accent-light,#eef2fa);border-color:var(--accent,#2a5caa)}.ttm-class-add .ttm-settings-link{margin-top:0}.ttm-class-list{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.ttm-class-row{display:flex;align-items:center;border:1px solid var(--border,#e2e0d8);border-radius:7px;background:var(--surface,#fff);overflow:hidden}.ttm-class-chip{padding:6px 8px;font:650 .75rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}.ttm-icon-btn{width:28px;height:28px;border:0;border-left:1px solid var(--border,#e2e0d8);background:transparent;color:var(--muted,#8a8780);cursor:pointer;font-size:1rem}.ttm-icon-btn:hover{background:var(--accent-light,#eef2fa);color:var(--accent,#2a5caa)}.ttm-settings-empty{font:400 .75rem 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-cycle-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font:600 .75rem 'Noto Sans',sans-serif}.ttm-segmented{display:flex;border:1px solid var(--border,#e2e0d8);border-radius:7px;overflow:hidden}.ttm-segmented button,.ttm-week-tab{border:0;background:var(--surface,#fff);padding:7px 10px;cursor:pointer;font:600 .72rem 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-segmented button+button{border-left:1px solid var(--border,#e2e0d8)}.ttm-segmented button.active,.ttm-week-tab.active{background:var(--accent-light,#eef2fa);color:var(--accent,#2a5caa)}.ttm-cycle-status{margin-left:auto;color:var(--accent,#2a5caa)}.ttm-cycle-reset{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.ttm-cycle-reset .ttm-settings-link{margin-top:0}.ttm-week-tabs{display:flex;gap:4px;border-bottom:1px solid var(--border,#e2e0d8);margin-top:16px}.ttm-week-tab{border-radius:6px 6px 0 0}.ttm-timetable-editor{margin-top:8px}.ttm-timetable-day{display:grid;grid-template-columns:105px 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--border,#e2e0d8)}.ttm-timetable-day:last-child{border-bottom:0}.ttm-timetable-day-name{padding-top:7px;font:650 .76rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}.ttm-timetable-slots{display:flex;flex-direction:column;gap:5px}.ttm-timetable-slot{display:grid;grid-template-columns:24px minmax(110px,1fr) 30px 30px 30px;gap:4px;align-items:center}.ttm-slot-position{font:600 .7rem 'DM Mono',monospace;color:var(--muted,#8a8780);text-align:center}.ttm-slot-select{height:32px;min-width:0;border:1px solid var(--border,#e2e0d8);border-radius:6px;background:var(--surface,#fff);padding:0 8px;font:600 .74rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}.ttm-slot-btn{height:30px;border:1px solid var(--border,#e2e0d8);border-radius:6px;background:var(--surface,#fff);color:var(--muted,#8a8780);cursor:pointer}.ttm-slot-btn:hover:not(:disabled){border-color:var(--accent,#2a5caa);color:var(--accent,#2a5caa);background:var(--accent-light,#eef2fa)}.ttm-slot-btn:disabled{opacity:.35;cursor:default}.ttm-add-slot{align-self:flex-start;border:0;background:transparent;padding:4px 2px;cursor:pointer;font:600 .72rem 'Noto Sans',sans-serif;color:var(--accent,#2a5caa)}.ttm-add-slot:disabled{color:var(--muted,#8a8780);cursor:default}@media(max-width:600px){.ttm-settings-overlay{padding:10px}.ttm-settings-modal{width:100%;max-height:calc(100vh - 20px)}.ttm-timetable-day{grid-template-columns:1fr;gap:4px}.ttm-timetable-day-name{padding-top:0}.ttm-cycle-status{width:100%;margin-left:0}}

/* alpha.16.2 — compact class entry + class colour chips */
.ttm-class-add input{height:36px;min-width:0;flex:1;border:1px solid var(--border,#e2e0d8);border-radius:7px;padding:0 10px;font:500 .8rem 'Noto Sans',sans-serif;color:var(--text,#1a1916);background:var(--surface,#fff)}
.ttm-class-add input:focus{outline:2px solid var(--accent-light,#eef2fa);border-color:var(--accent,#2a5caa)}
.ttm-class-row{position:relative;overflow:visible}.ttm-class-chip{border:0;cursor:pointer}.ttm-class-colour-picker{position:absolute;left:0;top:calc(100% + 5px);z-index:20;display:flex;gap:5px;padding:6px;background:var(--surface,#fff);border:1px solid var(--border,#e2e0d8);border-radius:7px;box-shadow:0 5px 16px rgba(0,0,0,.12)}
.ttm-colour-swatch{width:22px;height:22px;border:1px solid rgba(0,0,0,.12);border-radius:5px;cursor:pointer;padding:0}.ttm-colour-swatch:hover{outline:2px solid var(--text,#1a1916);outline-offset:1px}
.ttm-class-colour-slate{--class-bg:#f0f0ed;--class-fg:#5f5d57;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-blue{--class-bg:#e8effa;--class-fg:#315f9d;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-teal{--class-bg:#e4f1ef;--class-fg:#2e7069;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-green{--class-bg:#e9f2e6;--class-fg:#4d7446;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-amber{--class-bg:#f7efd9;--class-fg:#86691e;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-orange{--class-bg:#f7e9de;--class-fg:#915a31;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-rose{--class-bg:#f6e6e8;--class-fg:#95515a;background:var(--class-bg)!important;color:var(--class-fg)!important}.ttm-class-colour-purple{--class-bg:#eee8f6;--class-fg:#6d5791;background:var(--class-bg)!important;color:var(--class-fg)!important}

/* alpha.16.4 — timetable PDF import */
.ttm-timetable-import-row{display:flex;align-items:center;gap:8px;margin:10px 0 4px}.ttm-timetable-import-row .ttm-settings-link{margin:0}.ttm-import-status{font:500 .72rem 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}
.ttm-import-preview{margin-top:12px;border:1px solid var(--border,#e2e0d8);border-radius:7px;background:var(--surface,#fff);overflow:hidden}.ttm-import-preview-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-bottom:1px solid var(--border,#e2e0d8)}.ttm-import-preview-head strong{font:700 .76rem 'Noto Sans',sans-serif}.ttm-import-classes{display:flex;gap:5px;flex-wrap:wrap;padding:10px 12px;border-bottom:1px solid var(--border,#e2e0d8)}.ttm-import-class{width:82px;height:30px;border:1px solid var(--border,#e2e0d8);border-radius:5px;padding:0 7px;font:650 .72rem 'DM Mono',monospace}.ttm-import-week{padding:9px 12px}.ttm-import-week+.ttm-import-week{border-top:1px solid var(--border,#e2e0d8)}.ttm-import-week-title{font:700 .7rem 'Noto Sans',sans-serif;color:var(--accent,#2a5caa);margin-bottom:5px}.ttm-import-day{display:grid;grid-template-columns:82px 1fr;gap:8px;padding:3px 0;font:500 .7rem 'Noto Sans',sans-serif}.ttm-import-day-name{color:var(--muted,#8a8780)}.ttm-import-day-classes{display:flex;gap:4px;flex-wrap:wrap}.ttm-import-mini-chip{padding:2px 5px;border-radius:4px;background:#f0f0ed;font:650 .66rem 'DM Mono',monospace}.ttm-import-warnings{padding:8px 12px;border-top:1px solid var(--border,#e2e0d8);font:500 .68rem/1.4 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-import-actions{display:flex;justify-content:flex-end;gap:7px;padding:10px 12px;border-top:1px solid var(--border,#e2e0d8)}

/* alpha.16.4.4 — experimental timetable import diagnostics */
.ttm-import-diag-backdrop{position:fixed;inset:0;z-index:12000;background:rgba(26,25,22,.28);display:flex;align-items:center;justify-content:center;padding:24px}
.ttm-import-diag{width:min(680px,100%);max-height:min(760px,90vh);overflow:auto;background:var(--surface,#fff);border:1px solid var(--border,#e2e0d8);border-radius:10px;box-shadow:0 18px 55px rgba(26,25,22,.18);padding:18px;color:var(--text,#1a1916)}
.ttm-import-diag-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px solid var(--border,#e2e0d8)}
.ttm-import-diag-head strong{font-size:16px}.ttm-import-diag-head div div{font-size:12px;color:var(--muted,#8a8780);margin-top:3px}.ttm-import-diag-head button{border:0;background:transparent;font-size:24px;line-height:1;color:var(--muted,#8a8780);cursor:pointer}
.ttm-import-diag-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px;margin-top:10px}.ttm-import-diag-row{display:flex;justify-content:space-between;gap:14px;padding:8px 0;border-bottom:1px solid var(--border,#e2e0d8);font-size:12px}.ttm-import-diag-row span{color:var(--muted,#8a8780)}.ttm-import-diag-row code{font-family:'DM Mono',monospace;text-align:right;overflow-wrap:anywhere}
.ttm-import-diag-message{margin-top:16px}.ttm-import-diag-message strong{font-size:12px}.ttm-import-diag-message pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--bg,#f7f6f2);border:1px solid var(--border,#e2e0d8);border-radius:6px;padding:10px;font:11px/1.45 'DM Mono',monospace;max-height:180px;overflow:auto}.ttm-import-diag-actions{display:flex;justify-content:flex-end;margin-top:16px}
@media(max-width:620px){.ttm-import-diag-grid{grid-template-columns:1fr}}

/* alpha.16.5 — iSAMS Excel import */
.ttm-import-class-choice{display:inline-flex;align-items:center;gap:4px}.ttm-import-class-choice>input[type=checkbox]{margin:0}

/* alpha.16.6 — settings workspace */
.ttm-settings-overlay{padding:28px}
.ttm-settings-workspace{width:min(1040px,calc(100vw - 56px));height:min(760px,calc(100vh - 56px));max-height:none}
.ttm-settings-layout{display:grid;grid-template-columns:190px minmax(0,1fr);min-height:0;flex:1}
.ttm-settings-nav{padding:14px 10px;border-right:1px solid var(--border,#e2e0d8);background:var(--bg,#f7f6f2);display:flex;flex-direction:column;gap:3px}
.ttm-settings-nav button{width:100%;border:0;background:transparent;border-radius:6px;padding:9px 10px;text-align:left;cursor:pointer;font:600 .78rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}
.ttm-settings-nav button:hover{background:#fff}.ttm-settings-nav button.active{background:var(--accent-light,#eef2fa);color:var(--accent,#2a5caa)}
.ttm-settings-content{min-width:0;overflow:auto;padding:24px 28px 32px}
.ttm-settings-panel{display:none;max-width:720px}.ttm-settings-panel.active{display:block}
.ttm-settings-panel>h3{margin:0 0 22px;font:700 1.05rem 'Noto Sans',sans-serif;color:var(--text,#1a1916)}
.ttm-settings-panel .ttm-settings-section+.ttm-settings-section{margin-top:26px;padding-top:24px}
.ttm-settings-account-profile{display:flex;flex-direction:column;gap:2px;padding:10px 0}
.ttm-settings-account-profile strong{font:650 .82rem 'Noto Sans',sans-serif}.ttm-settings-account-profile span{font:400 .74rem 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}
.ttm-account-actions{display:flex;gap:8px}.ttm-account-actions .ttm-settings-link{margin-top:6px}
.ttm-danger-zone{margin-top:34px!important}.ttm-delete-account-btn{border:1px solid #c96a6a;background:#fff;border-radius:7px;padding:8px 12px;cursor:pointer;font:650 .74rem 'Noto Sans',sans-serif;color:#9b3f3f}.ttm-delete-account-btn:hover:not(:disabled){background:#fbefef}.ttm-delete-account-btn:disabled{opacity:.45;cursor:default}
.ttm-delete-overlay{display:none;position:fixed;inset:0;z-index:12020;background:rgba(26,25,22,.32);align-items:center;justify-content:center;padding:20px}.ttm-delete-overlay.open{display:flex}
.ttm-delete-dialog{width:min(430px,100%);background:var(--surface,#fff);border:1px solid var(--border,#e2e0d8);border-radius:9px;box-shadow:0 18px 50px rgba(0,0,0,.18);padding:20px}
.ttm-delete-dialog h3{margin:0 0 8px;font:700 1rem 'Noto Sans',sans-serif}.ttm-delete-dialog p,.ttm-delete-dialog label{font:400 .76rem/1.5 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-delete-dialog label{display:block;margin-top:16px;color:var(--text,#1a1916)}
.ttm-delete-dialog input{width:100%;box-sizing:border-box;height:36px;margin-top:6px;border:1px solid var(--border,#e2e0d8);border-radius:7px;padding:0 9px;font:600 .78rem 'DM Mono',monospace}.ttm-delete-dialog input:focus{outline:2px solid var(--accent-light,#eef2fa);border-color:var(--accent,#2a5caa)}
.ttm-delete-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.ttm-delete-actions .ttm-settings-link{margin-top:0}
@media(max-width:700px){.ttm-settings-overlay{padding:8px}.ttm-settings-workspace{width:100%;height:calc(100vh - 16px)}.ttm-settings-layout{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}.ttm-settings-nav{border-right:0;border-bottom:1px solid var(--border,#e2e0d8);flex-direction:row;overflow-x:auto;padding:8px}.ttm-settings-nav button{width:auto;white-space:nowrap}.ttm-settings-content{padding:20px}.ttm-settings-panel{max-width:none}}

/* alpha.16.6.1 — timetable import guidance */
.ttm-import-help{margin-top:8px;font:500 .72rem/1.45 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-import-help span{color:var(--text,#1a1916);font-weight:650}.ttm-import-help a,.ttm-import-other-system a{color:var(--accent,#2a5caa);text-decoration:none}.ttm-import-help a:hover,.ttm-import-other-system a:hover{text-decoration:underline}.ttm-import-other-system{display:flex;flex-direction:column;gap:3px;margin-top:14px;padding-top:12px;border-top:1px solid var(--border,#e2e0d8);font:400 .72rem/1.5 'Noto Sans',sans-serif;color:var(--muted,#8a8780)}.ttm-import-other-system strong{font-weight:650;color:var(--text,#1a1916)}