:root{
  color-scheme:light;
  --bg:#f3f5f8; --surface:#fff; --surface-2:#e9edf3; --ink:#1b2330; --ink-2:#5b6676; --ink-3:#8b96a6; --line:#dde3ec; --line-2:#c9d2de;
  --accent:#2a78d6; --accent-soft:#e3eefb; --warn:#e34948; --warn-soft:#fbe4e4; --ok:#1baf7a; --ok-soft:#dff5ec; --amber:#b7791f; --amber-soft:#fbf1dc;
  --font:"Golos Text",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --shadow:0 1px 2px rgba(20,30,50,.06),0 6px 20px -12px rgba(20,30,50,.18);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark;
  --bg:#13161b; --surface:#1b1f26; --surface-2:#242a33; --ink:#eaeef4; --ink-2:#a6b0bf; --ink-3:#717d8e; --line:#2b323d; --line-2:#3a4350;
  --accent:#3987e5; --accent-soft:#1d2d44; --warn:#e66767; --warn-soft:#3f2222; --ok:#1e9e70; --ok-soft:#173428; --amber:#d9a441; --amber-soft:#3a2f14;
}}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#13161b; --surface:#1b1f26; --surface-2:#242a33; --ink:#eaeef4; --ink-2:#a6b0bf; --ink-3:#717d8e; --line:#2b323d; --line-2:#3a4350;
  --accent:#3987e5; --accent-soft:#1d2d44; --warn:#e66767; --warn-soft:#3f2222; --ok:#1e9e70; --ok-soft:#173428; --amber:#d9a441; --amber-soft:#3a2f14;
}
*{box-sizing:border-box}
html{font-size:15px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.45}
a{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.top{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line);padding:0 18px}
.top-row{display:flex;align-items:center;gap:16px;padding:8px 0}
.nav-row{border-top:1px solid var(--line);padding:4px 0}
.nav-row .plus{margin-left:auto}
.brand{font-weight:700;text-decoration:none;color:var(--ink);letter-spacing:-.01em}
.brand span{color:var(--accent);font-weight:500;margin-left:2px}
.nav{display:flex;gap:2px;overflow-x:auto}
.nav a{padding:6px 10px;border-radius:7px;color:var(--ink-2);text-decoration:none;font-weight:500;white-space:nowrap}
.nav a[aria-current="page"]{background:var(--surface-2);color:var(--ink)}
.who{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2)}
.search{margin-left:auto}
.who small{color:var(--ink-3);margin-left:4px}
.who button{background:none;border:1px solid var(--line-2);border-radius:6px;padding:3px 9px;cursor:pointer;color:var(--ink-2)}
.main{max-width:1320px;margin:0 auto;padding:20px 18px 60px}
h1{font-size:22px;font-weight:600;margin:0 0 6px;letter-spacing:-.01em}
h2{font-size:17px;font-weight:600;margin:22px 0 8px}
h3{font-size:14px;font-weight:600;margin:14px 0 6px}
.sub{color:var(--ink-3);font-size:12.5px}
.lead{color:var(--ink-2);margin:0 0 14px;max-width:70ch}
.flash{padding:8px 12px;border-radius:8px;background:var(--ok-soft);color:var(--ok);margin:0 0 14px;font-weight:500}
.flash.warn{background:var(--warn-soft);color:var(--warn)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:0 0 14px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.tile .v{font-family:var(--mono);font-size:26px;font-weight:500;line-height:1.1;margin-top:4px}
.tile .v small{font-size:13px;color:var(--ink-2);font-family:var(--font);font-weight:400;margin-left:4px}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.bar{display:flex;flex-wrap:wrap;gap:8px;align-items:end;margin:10px 0 14px}
label.f{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--ink-3)}
label.f input,label.f select{padding:6px 9px;border:1px solid var(--line-2);border-radius:7px;background:var(--surface);min-width:120px}
.btn{display:inline-block;padding:6px 12px;border-radius:7px;border:1px solid var(--line-2);background:var(--surface);cursor:pointer;text-decoration:none;color:var(--ink);font-weight:500;font-size:13.5px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.small{padding:3px 8px;font-size:12px}
.btn.danger{color:var(--warn);border-color:var(--warn)}
.chip{display:inline-block;font-size:11.5px;line-height:1.2;padding:3px 7px;border-radius:5px;background:var(--surface-2);color:var(--ink-2);white-space:nowrap;font-weight:500}
.chip.ok{background:var(--ok-soft);color:var(--ok)} .chip.warn{background:var(--warn-soft);color:var(--warn)} .chip.amber{background:var(--amber-soft);color:var(--amber)} .chip.accent{background:var(--accent-soft);color:var(--accent)}
.tcode{display:inline-block;font-family:var(--mono);font-size:11px;font-weight:500;padding:1px 5px;border-radius:4px;background:var(--surface-2);color:var(--ink-2)}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:8px;background:var(--surface);margin:0 0 14px}
table{border-collapse:collapse;width:100%;font-size:13.5px}
th,td{padding:7px 10px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
tr:last-child td{border-bottom:0}
/* week grid */
.week{display:grid;grid-template-columns:130px repeat(7,minmax(150px,1fr));gap:0;border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow-x:auto}
.week>div{padding:8px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);min-width:0}
.week .h{font-size:12px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.05em;background:var(--surface-2);position:sticky;top:0}
.week .h.today{color:var(--accent)}
.week .room{font-weight:600;font-size:13px;background:var(--surface-2)}
.week .room small{display:block;font-weight:400;color:var(--ink-3);font-size:11px}
.les{display:block;text-decoration:none;color:var(--ink);border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 6px 6px 0;padding:4px 6px;margin:0 0 5px;font-size:12.5px;line-height:1.3}
.les.free{border-left-color:var(--line-2);background:var(--surface-2);color:var(--ink-3)}
.les.group{border-left-color:var(--ok);background:var(--ok-soft)}
.les.rental{border-left-color:var(--ink-3);background:repeating-linear-gradient(135deg,transparent 0 6px,var(--surface-2) 6px 7px)}
.les.cancelled{opacity:.45;text-decoration:line-through}
.les .t{font-family:var(--mono);font-size:11px;color:var(--ink-2)}
.les b{font-weight:500}
.les:hover{filter:brightness(.97)}
/* day list (teacher) */
.days{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.day{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px}
.day h3{margin:0 0 8px}
/* leads board */
.board{display:grid;grid-template-columns:repeat(6,minmax(180px,1fr));gap:10px;overflow-x:auto}
.col{background:var(--surface-2);border-radius:10px;padding:8px;min-height:120px}
.col h3{margin:0 0 8px;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-3)}
.lead-card{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px;margin:0 0 8px;font-size:13px}
.lead-card b{display:block;font-weight:500}
.lead-card form{margin-top:6px;display:flex;gap:4px}
.lead-card select{font-size:12px;padding:2px 4px;border:1px solid var(--line-2);border-radius:5px;background:var(--surface);flex:1}
.empty{color:var(--ink-3);padding:24px;text-align:center}
.login{max-width:360px;margin:60px auto}
.login input{width:100%;padding:9px 11px;border:1px solid var(--line-2);border-radius:8px;margin:4px 0 12px;background:var(--surface)}
.win{display:grid;grid-template-columns:110px 90px 1fr 1fr auto;gap:8px;align-items:center;padding:7px 4px;border-bottom:1px solid var(--line);font-size:13.5px}
.win:last-child{border-bottom:0}
@media (max-width:760px){.win{grid-template-columns:1fr 1fr;gap:4px}.board{grid-template-columns:repeat(2,1fr)}}

/* ---- global centre switcher (like the wiki) */
.seg{display:inline-flex;border:1px solid var(--line-2);border-radius:8px;padding:2px;background:var(--surface-2);gap:2px}
.seg button{padding:5px 11px;border-radius:6px;font-weight:500;color:var(--ink-2);display:flex;align-items:center;gap:6px;border:0;background:none;cursor:pointer;white-space:nowrap}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--ink-3)}
.dot.c1{background:#2a78d6} .dot.c2{background:#eb6834} .dot.c3{background:#1baf7a} .dot.c4{background:#eda100}
.dot.all{background:linear-gradient(90deg,#2a78d6 50%,#eb6834 50%)}
.loc-h{display:flex;align-items:center;gap:8px;margin:18px 0 8px}
.search input{padding:6px 12px;border:1px solid var(--line-2);border-radius:999px;background:var(--surface-2);width:280px;font-size:13px}
.row.between{justify-content:space-between}
.who span{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
/* ---- day view: rooms as columns, one-tap attendance */
.rooms{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;align-items:start}
.roomcol{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.roomcol h3{margin:2px 0 8px}
.dl{display:grid;grid-template-columns:52px minmax(0,1fr);gap:8px;padding:8px 4px;border-top:1px solid var(--line)}
.dl:first-of-type{border-top:0}
.dl.past{opacity:.55} .dl.cancelled{opacity:.4;text-decoration:line-through}
.dl-t{font-size:13px;line-height:1.2}
.dl-title{font-weight:500;color:var(--ink);text-decoration:none;font-size:14px}
.att{display:flex;align-items:center;gap:6px;margin-top:6px;font-size:12.5px}
.tap{width:36px;height:32px;border-radius:8px;border:1px solid var(--line-2);background:var(--surface);cursor:pointer;font-size:15px;color:var(--ink-3)}
.tap.on{background:var(--ok);border-color:var(--ok);color:#fff}
.tap.warn.on{background:var(--warn);border-color:var(--warn);color:#fff}
/* ---- finder child picker */
.who-card{padding:12px 16px}
.picks{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.pick{display:inline-block;padding:6px 10px;border:1px solid var(--line-2);border-radius:8px;text-decoration:none;color:var(--ink);background:var(--surface-2)}
.pick:hover{border-color:var(--accent)}
details.inline{display:inline-block} details.inline summary{list-style:none;cursor:pointer} details.inline summary::-webkit-details-marker{display:none}
.win .act form{gap:6px;align-items:center}
/* ---- mobile: bottom tab bar, bigger targets */
.bottom{display:none}
@media (max-width:760px){
  .top{padding:0 10px} .top-row{flex-wrap:wrap;gap:8px} .nav-row{display:none} .search{order:3;width:100%;margin-left:0} .search input{width:100%}
  .main{padding:12px 10px 80px}
  .bottom{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--line);z-index:10}
  .bottom a{flex:1;text-align:center;padding:10px 4px 12px;text-decoration:none;color:var(--ink-2);font-size:12px;font-weight:500}
  .bottom a[aria-current="page"]{color:var(--accent)}
  .btn{padding:9px 14px} .tap{width:44px;height:40px}
  .week{grid-template-columns:90px repeat(7,minmax(140px,1fr))}
}
/* ---- toast with undo, mini controls, teacher/room toggle */
.toast{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:30;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;max-width:min(92vw,640px);font-size:13.5px;transition:opacity .4s}
.toast.warn{background:var(--warn);color:#fff}
.toast .btn{background:transparent;color:inherit;border-color:currentColor}
.toast .x{background:none;border:0;color:inherit;font-size:18px;cursor:pointer;opacity:.7;padding:0 2px}
.toast.fade{opacity:0;pointer-events:none}
.mini{font-size:12px;padding:3px 6px;border:1px solid var(--line-2);border-radius:5px;background:var(--surface)}
.seg.small a{padding:4px 9px;border-radius:6px;font-size:12.5px;color:var(--ink-2);text-decoration:none;font-weight:500}
.seg.small a[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.plus{white-space:nowrap}
.quick label.f input{min-width:110px}
.att{flex-wrap:wrap}
@media (max-width:760px){.bottom{padding-bottom:env(safe-area-inset-bottom)} .plus{display:none} .toast{bottom:64px;width:92vw}}
.badge{display:inline-block;min-width:18px;padding:1px 6px;border-radius:999px;background:var(--warn);color:#fff;font-size:11px;font-weight:600;text-align:center;vertical-align:1px}
.msg{white-space:pre-wrap;font-size:13px;max-width:70ch}

/* ---- never let a control push the page wider than the viewport */
select,input{max-width:100%}
label.f{max-width:100%;min-width:0}
label.f select{max-width:min(100%,420px)}
.bar>*{min-width:0}
.seg.small{flex-wrap:wrap}
.bottom{box-sizing:border-box;width:100%}
.bottom a{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:760px){.row.between{flex-direction:column;align-items:stretch} .row.between>.row{justify-content:flex-start}}
@media (max-width:760px){
  .top-row{gap:6px 8px}
  .brand{order:0} .who{order:1;margin-left:auto} .seg{order:2;width:100%;justify-content:stretch} .seg button{flex:1;justify-content:center} .search{order:3}
}
/* ---- on phones, wide data tables stack into blocks instead of scrolling sideways */
@media (max-width:760px){
  .tw.stack table,.tw.stack tbody,.tw.stack tr,.tw.stack td{display:block;width:100%}
  .tw.stack thead,.tw.stack th{display:none}
  .tw.stack tr{padding:8px 10px;border-bottom:1px solid var(--line)} .tw.stack td{padding:2px 0;border:0}
  .tw.stack td.num{text-align:left}
}

select{text-overflow:ellipsis}
details.more summary{list-style:none} details.more summary::-webkit-details-marker{display:none}
.att .tap{width:34px;height:30px}

/* theme toggle (header) */
.theme-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:8px;width:34px;height:34px;font-size:16px;line-height:1;cursor:pointer;flex:none}
.theme-btn:hover{color:var(--ink);border-color:var(--ink-3)}
/* price board */
h2.pcat{font-size:15px;margin:18px 0 8px;color:var(--ink-2)}
table.prices td.num,table.prices th.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.card.rules{margin-top:18px} .card.rules ul{margin:6px 0 0;padding-left:18px} .card.rules li{margin:4px 0}
.row.between{display:flex;justify-content:space-between;align-items:center;gap:12px} .row.wrap{flex-wrap:wrap}

/* demo mode */
.demo-form{display:inline;flex:none}
.demo-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:8px;height:34px;padding:0 10px;font:inherit;font-size:13px;cursor:pointer}
.demo-btn:hover{color:var(--ink);border-color:var(--ink-3)} .demo-btn.on{background:var(--warn-soft);color:var(--warn);border-color:var(--warn)}
.demo-bar{background:var(--warn-soft);color:var(--warn);font-size:13px;padding:6px 16px;text-align:center;display:flex;gap:10px;justify-content:center;align-items:center;flex-wrap:wrap}
.demo-bar form{display:inline}
.demo-entry{margin-top:14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* hover help: <x data-tip="…"> shows a small label above; keyboard focus shows it too */
[data-tip]{position:relative}
[data-tip]:hover::after,[data-tip]:focus-visible::after{content:attr(data-tip);position:absolute;left:50%;bottom:calc(100% + 6px);transform:translateX(-50%);background:var(--ink);color:var(--surface);padding:4px 8px;border-radius:6px;font-size:12px;font-weight:500;line-height:1.3;white-space:nowrap;z-index:40;pointer-events:none;box-shadow:var(--shadow)}
/* icon buttons: one glyph, meaning on hover */
.ibtn{width:26px;height:26px;padding:0;border:1px solid var(--line-2);border-radius:6px;background:var(--surface);color:var(--ink-2);font-size:13px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.ibtn:hover{color:var(--ink);border-color:var(--ink-3);background:var(--surface-2)}
.ibtns{flex-wrap:wrap}
/* pills: radio groups that look like chips, one tap instead of a dropdown */
.pills{display:inline-flex;flex-wrap:wrap;gap:4px}
.pills label{position:relative;cursor:pointer}
.pills input{position:absolute;opacity:0;width:0;height:0}
.pills span{display:inline-block;padding:4px 9px;border:1px solid var(--line-2);border-radius:999px;background:var(--surface);color:var(--ink-2);font-size:12.5px;line-height:1.2;white-space:nowrap}
.pills input:checked+span{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}
.pills input:focus-visible+span{outline:2px solid var(--accent);outline-offset:1px}
div.f{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--ink-3)} div.f>span:first-child{font-size:12px}

/* settings: centres */
.hours{border-collapse:collapse} .hours td{padding:3px 6px} .hours input[type=time]{padding:4px 6px;border:1px solid var(--line-2);border-radius:6px;background:var(--surface)}
.hours input[type=time]:disabled{opacity:.4}
.centre-card{display:flex;flex-direction:column;gap:6px} .centre-card .row{gap:8px;flex-wrap:wrap}
.grid2{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.danger-zone{border-color:var(--warn);margin-top:18px}

/* crm | wiki switch */
.appsw{display:inline-flex;border:1px solid var(--line-2);border-radius:8px;overflow:hidden;font-size:12.5px;flex:none}
.appsw a{padding:5px 10px;color:var(--ink-2);text-decoration:none;font-weight:500} .appsw a+a{border-left:1px solid var(--line-2)}
.appsw a[aria-current]{background:var(--surface-2);color:var(--ink);font-weight:600}