:root{
  --navy:#0A1C3C;--navy-2:#13295A;--gold:#C9961F;--gold-2:#E8B94A;--gold-ink:#8A6410;
  --bg:#F3F5FA;--surface:#FFFFFF;--surface-2:#EDF1F8;--ink:#14213D;--muted:#566079;--line:#DCE1EA;
  --ok:#1E7A46;--ok-bg:#E3F4EA;--warn:#9A5B00;--warn-bg:#FFF2D6;--bad:#B3261E;--bad-bg:#FDE7E5;--focus:#2F6FEB;
  --serif:"Marcellus",Georgia,"Times New Roman",serif;--sans:"Figtree","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
  color-scheme:light;box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0A1222;--surface:#111C33;--surface-2:#172442;--ink:#E7EBF3;--muted:#A3AEC6;--line:#25345A;--gold-ink:#E8B94A;
  --ok:#5BC48A;--ok-bg:#12321F;--warn:#F2C25B;--warn-bg:#3A2C0C;--bad:#FF8A80;--bad-bg:#3D1614;--focus:#7FA8FF;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0A1222;--surface:#111C33;--surface-2:#172442;--ink:#E7EBF3;--muted:#A3AEC6;--line:#25345A;--gold-ink:#E8B94A;
  --ok:#5BC48A;--ok-bg:#12321F;--warn:#F2C25B;--warn-bg:#3A2C0C;--bad:#FF8A80;--bad-bg:#3D1614;--focus:#7FA8FF;color-scheme:dark}
*,*::before,*::after{box-sizing:inherit}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1rem/1.55 var(--sans);-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.2;margin:0 0 .5em}
h1{font-size:1.9rem}h2{font-size:1.45rem}h3{font-size:1.15rem}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.muted{color:var(--muted)}
.small{font-size:.88rem}
[hidden]{display:none!important}
svg.i{width:18px;height:18px;flex-shrink:0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45em;font:600 .93rem/1 var(--sans);padding:.72em 1.05em;border-radius:10px;border:1px solid transparent;cursor:pointer;text-decoration:none;white-space:nowrap;background:var(--surface-2);color:var(--ink)}
.btn:hover{filter:brightness(.97)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.primary{background:var(--navy);color:#fff}
.btn.gold{background:var(--gold-2);color:#0A1C3C}
.btn.line{background:transparent;border-color:var(--line)}
.btn.danger{background:transparent;color:var(--bad);border-color:var(--line)}
.btn.sm{padding:.5em .75em;font-size:.85rem;border-radius:8px}
.btn.icon{padding:.5em}
:root[data-theme="dark"] .btn.primary{background:#2B4B8F}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn.primary{background:#2B4B8F}}

/* layout */
.app{display:grid;grid-template-columns:250px 1fr;min-height:100%}
.side{background:var(--navy);color:#DCE3F2;display:flex;flex-direction:column;padding:18px 14px;position:sticky;top:0;height:100vh;height:100dvh;overflow-y:auto}
.side .brand{display:flex;gap:10px;align-items:center;padding:4px 6px 18px;border-bottom:1px solid rgba(232,185,74,.2);margin-bottom:12px;text-decoration:none}
.side .brand span.plate{background:#fff;border-radius:10px;padding:5px 6px;display:grid;place-items:center}
.side .brand img{height:30px}
.side .brand b{font-family:var(--serif);font-weight:400;color:#fff;font-size:1.1rem;line-height:1.1}
.side .brand small{display:block;font-family:var(--sans);color:var(--gold-2);font-size:.78rem}
.side nav{display:grid;gap:2px}
.side nav button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:none;border:0;color:#DCE3F2;font:600 .95rem var(--sans);padding:10px 12px;border-radius:10px;cursor:pointer}
.side nav button:hover{background:rgba(255,255,255,.06)}
.side nav button[aria-current="page"]{background:rgba(232,185,74,.16);color:#fff;box-shadow:inset 3px 0 0 var(--gold-2)}
.side nav .count{margin-left:auto;background:var(--gold-2);color:#0A1C3C;border-radius:999px;font-size:.75rem;padding:1px 8px}
.side .who{margin-top:auto;padding-top:14px;border-top:1px solid rgba(232,185,74,.2);font-size:.9rem}
.side .who b{display:block;color:#fff}
.side .who .btn{margin-top:10px;width:100%;background:rgba(255,255,255,.08);color:#fff}
.main{padding:28px clamp(16px,3vw,40px) 60px;min-width:0}
.top{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.top p{margin:0}
.mobilebar{display:none}
@media (max-width:860px){
  .app{grid-template-columns:1fr}
  .side{position:static;height:auto;padding:0}
  .side .brand,.side .who{display:none}
  .side nav{display:flex;overflow-x:auto;gap:4px;padding:8px 10px;scrollbar-width:none}
  .side nav button{flex-shrink:0;width:auto;padding:9px 12px}
  .side nav button[aria-current="page"]{box-shadow:inset 0 -3px 0 var(--gold-2)}
  .mobilebar{display:flex;align-items:center;justify-content:space-between;background:var(--navy);color:#fff;padding:10px 14px;position:sticky;top:0;z-index:20}
  .mobilebar img{height:30px;background:#fff;border-radius:8px;padding:3px 5px}
  .mobilebar .btn{background:rgba(255,255,255,.1);color:#fff}
  .main{padding-top:18px}
}

/* cards, stats, grids */
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.card + .card{margin-top:16px}
.card-h{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.card-h h2,.card-h h3{margin:0}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1100px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.stat b{display:block;font-family:var(--serif);font-weight:400;font-size:2rem;line-height:1.1}
.stat span{color:var(--muted);font-size:.9rem}
.stat.accent{background:var(--navy);color:#fff;border-color:var(--navy)}
.stat.accent span{color:#B9C2D6}
.stat.accent b{color:var(--gold-2)}

/* tables */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:.93rem}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--muted);background:var(--surface-2);white-space:nowrap;font-size:.85rem}
tr:last-child td{border-bottom:0}
td .acts{display:flex;gap:6px;flex-wrap:wrap}
.pill{display:inline-block;font-size:.78rem;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--surface-2);color:var(--ink);margin:2px 4px 2px 0;white-space:nowrap}
.pill.ok{background:var(--ok-bg);color:var(--ok)}
.pill.warn{background:var(--warn-bg);color:var(--warn)}
.pill.bad{background:var(--bad-bg);color:var(--bad)}
.pill.gold{background:rgba(232,185,74,.2);color:var(--gold-ink)}

/* forms */
.f{display:grid;gap:12px}
.f .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
label.l{display:grid;gap:5px;font-weight:600;font-size:.88rem}
input,select,textarea{font:400 .95rem var(--sans);padding:10px 12px;border-radius:9px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--focus);outline-offset:0;border-color:transparent}
input[type=checkbox]{width:18px;height:18px;accent-color:var(--navy)}
.checks{display:flex;flex-wrap:wrap;gap:8px}
.checks label{display:inline-flex;gap:7px;align-items:center;padding:7px 11px;border:1px solid var(--line);border-radius:9px;font-size:.88rem;cursor:pointer;background:var(--bg)}
.checks label:has(input:checked){border-color:var(--gold);background:rgba(232,185,74,.14)}
.checks .group{width:100%;font-size:.8rem;color:var(--muted);font-weight:600;margin-top:4px}
.err{color:var(--bad);font-weight:600;font-size:.9rem;min-height:1.2em;margin:0}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.toolbar input,.toolbar select{width:auto;min-width:180px}

/* charts */
.bars{display:grid;gap:8px}
.bar{display:grid;grid-template-columns:minmax(90px,180px) 1fr 52px;gap:10px;align-items:center;font-size:.9rem}
.bar .track{height:12px;background:var(--surface-2);border-radius:999px;overflow:hidden}
.bar .fill{height:100%;border-radius:999px;background:var(--gold-2)}
.bar .fill.low{background:#E07B6E}.bar .fill.mid{background:var(--gold-2)}.bar .fill.high{background:#3FA067}
.bar .lbl{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar b{text-align:right;font-weight:600}
.spark{width:100%;height:150px}
.empty{text-align:center;padding:30px 16px;color:var(--muted)}
.empty b{display:block;color:var(--ink);font-weight:600;margin-bottom:4px}

/* lists */
.list{display:grid;gap:10px}
.item{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--surface)}
.item h4{margin:0 0 4px;font:600 1rem var(--sans)}
.item p{margin:0 0 6px}
.item .meta{font-size:.82rem;color:var(--muted)}
.item .reply{margin-top:10px;padding:10px 12px;border-left:3px solid var(--gold-2);background:var(--surface-2);border-radius:0 8px 8px 0}
.suggest{display:grid;gap:8px}
.suggest .opt{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}

/* dialog */
dialog{border:0;padding:0;border-radius:16px;background:var(--surface);color:var(--ink);width:min(640px,94vw);max-height:92vh;box-shadow:0 30px 80px -20px rgba(0,0,0,.6)}
dialog::backdrop{background:rgba(5,12,26,.6)}
.dh{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface);z-index:1}
.dh h2{margin:0;font-size:1.25rem}
.db{padding:18px}
.df{display:flex;justify-content:flex-end;gap:8px;padding:14px 18px;border-top:1px solid var(--line);position:sticky;bottom:0;background:var(--surface)}

/* login */
.login{min-height:100%;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 80% 10%,#1F3D7A,transparent 50%),var(--navy)}
.login .box{width:min(420px,100%);background:var(--surface);border-radius:20px;padding:28px;box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.login .logo{display:block;height:58px;margin:0 auto 18px}
.tabs{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:4px;background:var(--surface-2);padding:4px;border-radius:12px;margin-bottom:18px}
.tabs button{border:0;background:none;padding:10px;border-radius:9px;font:600 .95rem var(--sans);color:var(--muted);cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.login .back{display:block;text-align:center;margin-top:16px;font-size:.9rem;color:var(--muted)}

.toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom,0px) + 22px);transform:translateX(-50%) translateY(16px);background:var(--navy);color:#fff;padding:11px 16px;border-radius:10px;font-weight:600;z-index:200;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.bad{background:var(--bad)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
.grid>.card+.card,.grid>.card{margin-top:0}
.grid+.card,.grid+.grid,.card+.grid{margin-top:16px}
@media (max-width:640px){.g4.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.stat b{font-size:1.6rem}}
/* Classes grouped by subject */
.subj-list{display:grid;gap:10px}
.subj{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.subj.open{border-color:var(--gold)}
.subj-h{display:flex;align-items:center;gap:10px;width:100%;background:none;border:0;padding:14px 18px;cursor:pointer;color:var(--ink);font:inherit;text-align:left;flex-wrap:wrap}
.subj-h:hover{background:var(--surface-2)}
.subj-t{display:grid;min-width:160px;margin-right:4px}
.subj-t b{font-family:var(--serif);font-weight:400;font-size:1.2rem;line-height:1.2}
.subj-names{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.caret-i{width:16px;height:16px;transition:transform .2s;margin-left:auto}
.subj.open .caret-i{transform:rotate(180deg)}
.subj.open .subj-names{visibility:hidden}
.subj-b{border-top:1px solid var(--line);padding:6px 18px 14px;display:grid;gap:0}
.tutor-row{padding:14px 0;border-bottom:1px dashed var(--line)}
.tutor-h{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;flex-wrap:wrap}
.tutor-h b{display:block;font-size:1.02rem}
.chips-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.chips-row .pill{margin:0;display:inline-flex;align-items:center;gap:4px;padding:4px 6px 4px 10px}
.pill .x{border:0;background:none;color:var(--muted);cursor:pointer;font-size:1rem;line-height:1;padding:0 4px;border-radius:50%}
.pill .x:hover{color:var(--bad);background:var(--bad-bg)}
.subj-foot{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding-top:12px}
@media (max-width:640px){.subj-names{display:none}.subj-t{min-width:0;flex:1}}
.toolbar input[type=checkbox]{min-width:0;width:18px}
.tabs a{text-align:center;padding:10px;border-radius:9px;font:600 .95rem var(--sans);color:var(--muted);text-decoration:none}
.tabs a[aria-current="page"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.err a{color:inherit}
/* Bulk selection */
.bulkbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:var(--navy);color:#fff;border-radius:12px;padding:10px 14px;margin-bottom:12px;box-shadow:0 10px 24px -14px rgba(0,0,0,.5)}
.bulkbar b{margin-right:auto;font-weight:600}
.bulkbar .btn.line{color:#fff;border-color:rgba(255,255,255,.3)}
.bulkbar .btn.danger{color:#FFB4AB;border-color:rgba(255,255,255,.3)}
tr.sel td{background:rgba(232,185,74,.10)}
.bulk-f{border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.bulk-in{margin-top:10px}
.grp-h{display:flex!important;align-items:center;gap:10px;margin-top:8px!important}
.grp-h span:nth-child(2){color:var(--ink)}
.grp-all{display:inline-flex!important;gap:6px;align-items:center;padding:4px 10px!important;font-size:.82rem;border-radius:999px!important;background:var(--surface-2)!important;border:1px solid var(--line)!important;cursor:pointer;color:var(--ink)}
@media (max-width:860px){.bulkbar{top:52px}}
/* Student form */
fieldset.fs{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:0;min-width:0}
fieldset.fs legend{font-weight:600;font-size:.86rem;padding:0 6px}
input.ro{background:var(--surface-2);color:var(--ink);font-weight:600}
input:user-invalid{border-color:var(--bad)}
tr.locked td{color:var(--muted)}
.notice{background:var(--warn-bg);color:var(--warn);border-radius:10px;padding:10px 12px;font-weight:600;font-size:.9rem;margin:0 0 14px}
.side .who .idle-note{display:block;font-size:.76rem;color:#8E9AB5;margin-top:6px}
/* Avatars: photo, or first letter on a colour picked from the name */
.av{position:relative;display:inline-grid;place-items:center;flex-shrink:0;border-radius:50%;overflow:hidden;background:hsl(var(--av-h,220) 45% 40%);color:#fff;vertical-align:middle}
.av b{font-family:var(--sans);font-weight:700;line-height:1}
.av img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#fff}
.av-xs{width:26px;height:26px}.av-xs b{font-size:.78rem}
.av-sm{width:34px;height:34px}.av-sm b{font-size:.95rem}
.av-md{width:48px;height:48px}.av-md b{font-size:1.25rem}
.av-lg{width:112px;height:112px;box-shadow:0 0 0 4px var(--surface),0 0 0 6px var(--gold-2)}.av-lg b{font-size:2.8rem}
.person{display:flex;align-items:center;gap:10px}
.person b{display:block}
.side .who .person{margin-bottom:8px}
.side .who .person b{color:#fff}
/* Profile page */
.profile-head{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.profile-head h2{margin:0 0 4px}
.kv{display:grid;grid-template-columns:minmax(120px,190px) 1fr;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.kv dt,.kv dd{margin:0;padding:11px 14px;border-bottom:1px solid var(--line)}
.kv dt{color:var(--muted);font-weight:600;font-size:.88rem;background:var(--surface-2)}
.kv dt:last-of-type,.kv dd:last-of-type{border-bottom:0}
@media (max-width:560px){.kv{grid-template-columns:1fr}.kv dt{border-bottom:0;padding-bottom:2px}}
/* Photo field in admin forms */
.photo-f{display:flex;gap:12px;align-items:center;border:1px dashed var(--line);border-radius:12px;padding:10px 12px}
.photo-f .pf-body{display:grid;gap:6px;flex:1;min-width:0}
.photo-f input[type=file]{padding:6px;font-size:.85rem}
/* Auto-logout countdown */
.ek-timer{display:grid;gap:5px;font-size:.8rem;color:#C9D2E6;margin-bottom:12px}
.ek-timer-txt{display:flex;align-items:center;gap:6px}
.ek-timer-txt .i{width:14px;height:14px;color:var(--gold-2)}
.ek-timer-left{font-variant-numeric:tabular-nums;color:#fff;font-weight:700;letter-spacing:.02em}
.ek-timer-track{height:4px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.ek-timer-bar{display:block;height:100%;width:100%;background:var(--gold-2);border-radius:999px;transition:width 1s linear,background .3s}
.ek-timer.warn .ek-timer-bar{background:#F2A23A}.ek-timer.warn .ek-timer-left{color:#F7C46C}
.ek-timer.danger .ek-timer-bar{background:#E5534B}.ek-timer.danger .ek-timer-left{color:#FF8A80}
.mobilebar .ek-timer{margin:0 10px 0 auto;min-width:0}
.mobilebar .ek-timer-txt{font-size:.74rem;white-space:nowrap}
@media (max-width:380px){.mobilebar .ek-timer-txt{font-size:0}.mobilebar .ek-timer-txt .ek-timer-left{font-size:.8rem}}
@media (prefers-reduced-motion:reduce){.ek-timer-bar{transition:none}}
/* Sidebar: the menu scrolls on its own, so the logout timer, profile and Log out are always visible */
@media (min-width:861px){
  .side{overflow:hidden}
  .side nav{flex:1 1 auto;min-height:0;overflow-y:auto;margin-right:-6px;padding-right:6px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}
  .side .brand,.side .who{flex-shrink:0}
}
@media (min-width:861px) and (max-height:760px){
  .side nav button{padding:8px 12px}
  .side .brand{padding-bottom:12px;margin-bottom:8px}
  .side .who{padding-top:10px}
}
/* Tests (portal) */
.test-item{display:flex;justify-content:space-between;gap:14px;align-items:center;flex-wrap:wrap}
.test-act{flex-shrink:0}
.ttabs{max-width:520px;margin-bottom:16px}
.count-dot{display:inline-grid;place-items:center;min-width:20px;height:20px;border-radius:999px;background:var(--bad);color:#fff;font-size:.72rem;padding:0 5px;margin-left:4px}
.qcard-h{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.qcard-h .sp{flex:1}
.qcard-h .marks{display:flex;gap:6px;align-items:center;font-size:.85rem;font-weight:600}
.qcard-h .marks input{width:80px;padding:6px 8px}
.qcard{display:grid;gap:10px}
.qrow{display:flex;gap:8px;align-items:center}
.qrow input{flex:1}
.qrow .qn{width:24px;text-align:center;font-weight:700;color:var(--muted);font-size:.85rem}
.qrow.pair .arrow{color:var(--gold-ink);font-weight:700}
textarea.mono{font:13px/1.45 Consolas,"Courier New",monospace}
.add-q{border-style:dashed;margin-top:12px}
.save-bar{position:sticky;bottom:0;z-index:5;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 16px;margin-top:14px;box-shadow:0 -10px 24px -18px rgba(0,0,0,.4)}
.notice-card{border-color:var(--gold);background:rgba(232,185,74,.10);margin-bottom:12px}
.code-review .CodeMirror{min-height:140px}
/* Sidebar menu: items stay together at the top (only the list scrolls when it's long) */
.side nav{align-content:start}
/* Dialogs: never scroll sideways; wide variant for longer forms */
dialog.wide{width:min(760px,94vw)}
.db{overflow-x:hidden}
.db input,.db select,.db textarea{min-width:0;max-width:100%}
.f .row>*,.row-time>*{min-width:0}
/* Form sections inside dialogs */
.fsec{display:grid;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.fsec:last-of-type{border-bottom:0;padding-bottom:4px}
.fsec h3{font:600 .78rem var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:2px 0 0}
.opt-tag{font-weight:500;color:var(--muted);font-size:.78rem;margin-left:4px}
.hint{margin:0;color:var(--muted);font-size:.84rem;line-height:1.45}
.row-time{display:grid;grid-template-columns:minmax(150px,.8fr) 1fr 1fr;gap:12px;align-items:end}
@media (max-width:640px){.row-time{grid-template-columns:1fr}}
.with-unit{display:flex;align-items:center;gap:8px}
.with-unit input{flex:1}
.with-unit span{color:var(--muted);font-size:.88rem;font-weight:500}
.choice-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
@media (max-width:640px){.choice-list{grid-template-columns:1fr}}
.choice{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:12px;cursor:pointer;background:var(--bg)}
.choice:has(input:checked){border-color:var(--gold);background:rgba(232,185,74,.12)}
.choice input{margin-top:3px;accent-color:var(--navy)}
.choice b{display:block;font-size:.9rem;font-weight:600}
.choice small{display:block;color:var(--muted);font-size:.8rem}
.tick{display:flex;gap:8px;align-items:center;font-weight:600;font-size:.9rem;margin-top:10px}
/* Radio buttons and checkboxes keep their natural size (text inputs are full width) */
input[type=radio],input[type=checkbox]{width:18px;height:18px;padding:0;flex:0 0 auto;margin:2px 0 0}
.choice span{min-width:0}

.warn-hint{color:var(--warn);background:var(--warn-bg);border-radius:8px;padding:8px 10px;margin-top:8px}
/* Tutor alerts */
.alerts-card{border-color:var(--bad);margin-bottom:16px}
.alert-item{display:flex;justify-content:space-between;gap:12px;align-items:center;border-left:4px solid var(--bad)}
.alert-item p{margin:2px 0 4px;color:var(--muted);font-size:.92rem}
.side nav .count.alert{background:#E5534B;color:#fff}
/* Sidebar logo is a button that opens the Dashboard (it no longer leaves the portal) */
.side button.brand{background:none;border:0;border-bottom:1px solid rgba(232,185,74,.2);width:100%;text-align:left;cursor:pointer;font:inherit;color:inherit;border-radius:0}
.side button.brand:hover b{color:var(--gold-2)}
/* Sidebar header: the uploaded logo on a white card, portal name underneath */
.side button.brand{display:grid;gap:8px;justify-items:center;padding:4px 2px 16px;margin-bottom:12px}
.side .brand-logo{display:grid;place-items:center;width:100%;background:#fff;border-radius:14px;padding:10px 12px;box-shadow:0 6px 18px -10px rgba(0,0,0,.5)}
.side .brand-logo img{display:block;width:100%;max-height:72px;object-fit:contain}
.side .brand-sub{font:700 .76rem var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--gold-2)}
.side button.brand:hover .brand-logo{box-shadow:0 0 0 3px rgba(232,185,74,.55)}
.side button.brand:hover b{color:inherit}
@media (min-width:861px) and (max-height:760px){.side .brand-logo img{max-height:56px}.side button.brand{gap:6px;padding-bottom:12px}}
/* Phone top bar and login screens: bigger logo */
.mobilebar img{height:40px}
.login .logo{height:78px;max-width:100%;object-fit:contain}
.logo-preview{display:grid;place-items:center;background:#fff;border:1px dashed var(--line);border-radius:12px;padding:16px;min-height:110px}
.logo-preview img{max-width:100%;max-height:90px;object-fit:contain}
.br-item{display:flex;gap:10px;align-items:center}
.br-item input{flex:1;min-width:0}
.br-ico{width:44px;height:44px;flex-shrink:0;border-radius:8px;background:var(--surface-2);display:grid;place-items:center;overflow:hidden;font:700 .72rem var(--sans);color:var(--bad)}
.br-ico img{width:100%;height:100%;object-fit:cover}
@media (max-width:860px){.side button.brand{display:none}}
.side .brand-logo img{height:auto}