:root{--bg:#f6f7fb;--card:#fff;--ink:#1c2233;--mut:#6a7388;--pri:#3454d1;--ok:#1b8a4b;--bad:#c93232;--line:#e2e5ef}
@media(prefers-color-scheme:dark){:root{--bg:#12151f;--card:#1b2030;--ink:#e8ebf5;--mut:#9aa3bb;--pri:#7c97ff;--line:#2b3247}}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,Segoe UI,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--pri)}.wrap{max-width:1000px;margin:0 auto;padding:0 16px}main{padding-top:20px;padding-bottom:60px}
header{background:var(--card);border-bottom:1px solid var(--line)}.bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;padding-top:10px;padding-bottom:10px}
.brand{font-weight:700;text-decoration:none;font-size:18px}.brand small{display:block;font-weight:400;font-size:12px;color:var(--mut)}
nav{display:flex;flex-wrap:wrap;gap:4px 14px;flex:1}nav a{text-decoration:none;font-size:14px}.who{font-size:14px;color:var(--mut)}
h1{font-size:24px;margin:.3em 0}h2{font-size:19px;margin:1.4em 0 .5em}.muted,.crumb{color:var(--mut);font-size:14px}.crumb a{text-decoration:none}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.tile,.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}.tile{display:block;text-decoration:none;color:inherit}
.tile:hover{border-color:var(--pri)}.tile span{display:block;color:var(--mut);font-size:14px}.card{margin:12px 0}
.narrow{max-width:380px;margin:50px auto}label{display:block;font-size:14px;margin:10px 0;flex:1}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);font:inherit;margin-top:3px}
textarea{min-height:70px}.row{display:flex;flex-wrap:wrap;gap:0 12px}.row label{min-width:150px}
button{background:var(--pri);color:#fff;border:0;border-radius:6px;padding:9px 18px;font:inherit;cursor:pointer;margin-top:8px}button.sm{padding:3px 10px;font-size:13px;margin:0}
.err{color:var(--bad)}.ok{color:var(--ok)}code{background:var(--bg);padding:2px 6px;border-radius:4px}
.tabs{display:flex;flex-wrap:wrap;gap:6px}.tabs a{padding:4px 12px;border:1px solid var(--line);border-radius:99px;text-decoration:none;font-size:14px;background:var(--card)}.tabs a.on{background:var(--pri);color:#fff;border-color:var(--pri)}
.qa{background:var(--card);border:1px solid var(--line);border-radius:8px;margin:8px 0;padding:10px 14px}.qa summary{cursor:pointer;font-weight:600}.ans{margin-top:8px;padding-top:8px;border-top:1px dashed var(--line)}
.pill{font-size:11px;text-transform:uppercase;color:var(--mut);letter-spacing:.05em}
.mcq{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px;margin:12px 0}.q{margin:0 0 8px}
.opt{display:flex;gap:8px;align-items:center;padding:6px 10px;border-radius:6px;margin:2px 0;cursor:pointer}.opt input{width:auto;margin:0}.opt:hover{background:var(--bg)}
.opt.right{background:color-mix(in srgb,var(--ok) 20%,transparent)}.opt.wrong{background:color-mix(in srgb,var(--bad) 20%,transparent)}
.exp{display:none;margin-top:8px;font-size:14px}.exp.show{display:block}.score{font-size:22px;font-weight:700;color:var(--ok)}
.tbl{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);margin:12px 0}.tbl th,.tbl td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);font-size:14px}
.filters{display:flex;flex-wrap:wrap;gap:0 12px;align-items:end;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px 14px;margin:10px 0}.filters label{min-width:170px}
.pill{display:inline-block;font-size:11px;padding:1px 8px;border-radius:99px;margin-right:6px;text-transform:none;letter-spacing:0;border:1px solid var(--line)}
.st-draft{color:var(--mut)}.st-flagged{color:var(--bad);border-color:var(--bad)}.st-approved{color:var(--ok);border-color:var(--ok)}
.review textarea{min-height:90px}.btns{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:6px}.btns button{margin:0}
button.ok{background:var(--ok);color:#fff}button.warn{background:var(--bad);color:#fff}
.table-scroll{max-width:100%;overflow-x:auto;margin:12px 0;overscroll-behavior-x:contain}.table-scroll .tbl{margin:0}
.card,.ans,.qa,.tile{overflow-wrap:anywhere}input,select,textarea{max-width:100%;min-width:0}
.notice{padding:12px 16px;border-left:4px solid var(--pri);background:var(--card);border-radius:6px}
.policy-copy{max-width:75ch;line-height:1.7;overflow-wrap:anywhere}
.skip-link{position:fixed;left:12px;top:-100px;z-index:20;background:var(--card);padding:10px 16px;border:2px solid var(--pri)}.skip-link:focus{top:8px}
:focus-visible{outline:3px solid var(--pri);outline-offset:3px}.score:focus{outline:3px solid var(--pri)}
button:disabled{opacity:.65;cursor:default}section.card h2{margin:.2em 0 .5em}
@media(max-width:600px){nav{flex-basis:100%;gap:0 12px}nav a{display:inline-flex;align-items:center;min-height:44px}.who{display:flex;flex-wrap:wrap;align-items:center;gap:4px}button.sm{min-height:40px;padding:6px 12px}.btns{gap:10px}.filters label,.row label{min-width:min(170px,100%)}.tbl th,.tbl td{padding:8px;font-size:14px}.opt{min-height:44px}.tabs a{display:inline-flex;align-items:center;min-height:40px}.grid{grid-template-columns:repeat(auto-fit,minmax(min(210px,100%),1fr))}}

.review-confirm{display:flex;align-items:flex-start;gap:10px}.review-confirm input{width:auto;flex:none;margin-top:5px}.st-archived{color:var(--mut)}
.admin-tools{margin:12px 0;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--card);font-size:14px;overflow-wrap:anywhere}.admin-tools a{display:inline-block;padding:6px;min-height:36px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 14px;border-radius:6px;background:var(--pri);color:#fff;text-decoration:none}.secondary{background:var(--card);color:var(--ink);border:1px solid var(--line)}.btns form{display:inline-flex;margin:0}.manage-item h2{font-size:17px;margin:0;overflow-wrap:anywhere}.manage-item .btns{align-items:center;gap:10px}button{min-height:40px}.manage-item input,.manage-item textarea{max-width:100%}main{overflow-wrap:anywhere}

.permission-table input[type=checkbox]{width:22px;height:22px;accent-color:var(--pri)}.permission-table th{white-space:normal;min-width:130px}.permission-table td{text-align:center;vertical-align:middle}.permission-table th:first-child{min-width:220px}.item-controls{justify-content:flex-end;flex-wrap:wrap;margin-top:12px;gap:8px}.item-controls .button{font-size:14px}.item-controls form{margin:0}details.card>summary{font-size:18px;font-weight:600;cursor:pointer;min-height:36px}label[hidden]{display:none}

/* Responsive web layouts for touch, keyboard and television browsers. */
.wrap{max-width:1200px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:0 20px}.check-label{display:flex;gap:10px;align-items:flex-start}.check-label input{width:22px;height:22px;flex:none}.profile-photo{width:160px;max-width:100%;height:auto;border-radius:8px}.profile-details{display:grid;grid-template-columns:minmax(120px,1fr) 2fr;gap:10px 20px}.profile-details dt{font-weight:600}.profile-details dd{margin:0;overflow-wrap:anywhere}.test-question{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin:18px 0}.test-question legend{font-weight:700;padding:0 8px}.test-timer{position:sticky;top:0;z-index:5;background:var(--card);border:2px solid var(--pri);padding:10px;font-weight:700}.test-timer:empty{display:none}.test-actions{display:flex;flex-wrap:wrap;gap:10px}.device-tools{padding-bottom:24px}.device-tools button{font-size:14px}button,.button,summary,input[type=radio],input[type=checkbox]{touch-action:manipulation}.opt input{width:22px;min-width:22px;height:22px}.tv-mode body{font-size:22px}.tv-mode .wrap{max-width:1680px;padding-left:32px;padding-right:32px}.tv-mode h1{font-size:36px}.tv-mode h2{font-size:28px}.tv-mode nav a,.tv-mode label,.tv-mode .who,.tv-mode .muted,.tv-mode .crumb,.tv-mode .button{font-size:20px}.tv-mode button,.tv-mode .button,.tv-mode nav a{min-height:54px}.tv-mode :focus-visible{outline:5px solid var(--pri);outline-offset:5px}.tv-mode .grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.tv-mode input,.tv-mode select,.tv-mode textarea{font-size:22px}
@media(max-width:767px){.wrap{padding-left:14px;padding-right:14px}input,select,textarea{font-size:16px}.profile-details{grid-template-columns:1fr;gap:4px}.profile-details dd{margin-bottom:12px}.test-actions>*{flex:1;min-width:200px}button,.button{min-height:44px}.form-grid{grid-template-columns:1fr}.test-question{padding:12px}.tv-mode .wrap{padding-left:16px;padding-right:16px}.tv-mode .grid{grid-template-columns:1fr}}
@media(min-width:1800px){body{font-size:20px}.wrap{max-width:1600px}nav a,label{font-size:18px}.grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.device-switch{font-size:14px;margin:0}.tv-mode .device-switch{font-size:18px}
/* Keep navigation readable when account tools wrap at tablet widths. */
nav{flex:1 1 360px;min-width:0}.who{max-width:100%;overflow-wrap:anywhere}

.institute-logo{width:64px;height:64px;object-fit:contain;vertical-align:middle;margin-right:10px}.brand .institute-logo{width:40px;height:40px;float:left}.accent-violet{--pri:#6940b5}.accent-teal{--pri:#087b72}
@media(prefers-color-scheme:dark){.accent-violet{--pri:#bb9aff}.accent-teal{--pri:#68d6c9}}
.invoice{overflow-wrap:anywhere}.invoice section{min-width:0}
@media print{header,.admin-tools,.no-print,.skip-link{display:none!important}body{background:white;color:black}.wrap{max-width:none}.invoice{border:0;box-shadow:none}a{color:black}.table-scroll{overflow:visible}}