/* Test-only design tokens keep the rest of the platform unchanged. */
body.exam-mode[data-test-ui="premium"]{--test-bg:#edf2f8;--test-paper:#fff;--test-soft:#f5f7fb;--test-ink:#182b45;--test-muted:#63738a;--test-line:#dce4ef;--test-accent:#2859d6;--test-selected:#edf3ff;--test-success:#127553;--test-header:#132541;overflow:hidden;color:var(--test-ink);background:var(--test-bg);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}
body.exam-mode[data-test-theme="warm"]{--test-bg:#eeeae1;--test-paper:#fffaf0;--test-soft:#f6f0e4;--test-ink:#342e24;--test-muted:#756b5a;--test-line:#e2d9c8;--test-selected:#f0ebd9;--test-accent:#51672d}
body.exam-mode[data-test-theme="dark"]{--test-bg:#0d1625;--test-paper:#152238;--test-soft:#1a2b43;--test-ink:#e5edf9;--test-muted:#a5b5cc;--test-line:#31435d;--test-selected:#243d64;--test-accent:#8db6ff;--test-success:#85ddbd}
body[data-test-ui="premium"] #app{height:100dvh;min-height:0;display:flex;flex-direction:column;overflow:hidden}
body[data-test-ui="premium"] .cbt-header{flex:0 0 56px;height:56px;min-height:56px;padding:8px 22px;border:0;background:var(--test-header);color:#fff;gap:16px;z-index:30}
body[data-test-ui="premium"] .cbt-brand{display:flex!important;min-width:0;gap:8px;color:#fff}
body[data-test-ui="premium"] .cbt-brand .brand-icon{background:#ffffff17;border:1px solid #ffffff26;color:#a8dbff;padding:5px 8px;font-size:18px;border-radius:9px}
body[data-test-ui="premium"] .cbt-brand b{font-size:15px;letter-spacing:-.3px}
body[data-test-ui="premium"] .cbt-brand small,body[data-test-ui="premium"] .candidate-photo{display:none!important}
body[data-test-ui="premium"] .cbt-title{min-width:0;flex:1;color:#fff}
body[data-test-ui="premium"] .cbt-title small{color:#e2eafa;font-size:12px;line-height:1.4}
body[data-test-ui="premium"] .cbt-title #total-timer{display:block!important;color:#a6b9d2;font-size:10px;margin-top:2px}
body[data-test-ui="premium"] .cbt-clock{display:flex;align-items:center;gap:10px;border:1px solid #ffffff2b;background:#ffffff0b;border-radius:9px;padding:6px 11px}
body[data-test-ui="premium"] .cbt-clock small{color:#bbcce1;letter-spacing:.4px;font-size:9px;max-width:65px;line-height:1.4}
body[data-test-ui="premium"] .cbt-clock .timer{font:650 21px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.3px;color:#c7eaff;min-width:61px}
body[data-test-ui="premium"] .timer[data-urgency="soon"]{color:#ffdc9b}
body[data-test-ui="premium"] .timer[data-urgency="urgent"]{color:#ffb1b5}
body[data-test-ui="premium"] .test-actions-menu summary{border-color:#ffffff30;background:#ffffff0b;color:#fff;width:34px;height:34px}
body[data-test-ui="premium"] .test-progress{height:3px;flex:0 0 3px;background:#233b58;overflow:hidden}
body[data-test-ui="premium"] .test-progress>span{display:block;height:100%;width:0;background:#66d6cf;transition:width .18s ease}
body[data-test-ui="premium"] .test-section-rail{display:flex;flex:0 0 auto;gap:5px;overflow-x:auto;scrollbar-width:thin;background:var(--test-paper);padding:7px 20px;border-bottom:1px solid var(--test-line);min-height:44px}
body[data-test-ui="premium"] .test-section-rail button{display:flex;align-items:center;gap:12px;white-space:nowrap;border:1px solid transparent;background:transparent;color:var(--test-muted);padding:6px 11px;font-size:11px;border-radius:7px;flex-shrink:0;min-height:31px}
body[data-test-ui="premium"] .test-section-rail button.active{background:var(--test-selected);border-color:var(--test-line);color:var(--test-accent);font-weight:650}
body[data-test-ui="premium"] .test-section-rail button:disabled{opacity:.6;cursor:not-allowed}
body[data-test-ui="premium"] .test-section-rail small{font-size:10px;font-variant-numeric:tabular-nums}
body[data-test-ui="premium"] .test-lock{font-size:9px;border:1px solid var(--test-line);padding:2px 4px;border-radius:4px}
body[data-test-ui="premium"] .cbt-workspace{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:12px;padding:12px;background:var(--test-bg);overflow:hidden}
body[data-test-ui="premium"] .cbt-question-pane{order:1;min-height:0;overflow:hidden;border:1px solid var(--test-line);border-radius:12px;background:var(--test-paper);box-shadow:0 3px 15px #142d4c05}
body[data-test-ui="premium"] .cbt-palette{order:2;border:1px solid var(--test-line);border-radius:12px;background:var(--test-paper);padding:15px;overflow-y:auto;color:var(--test-ink);min-height:0}
body[data-test-ui="premium"] .cbt-question-toolbar{flex:0 0 auto;min-height:53px;flex-wrap:wrap;justify-content:flex-start;gap:7px 12px;background:var(--test-paper);border-bottom:1px solid var(--test-line);padding:9px 20px}
body[data-test-ui="premium"] .cbt-question-toolbar>div:first-child{margin-right:auto}
body[data-test-ui="premium"] .cbt-question-toolbar b{font-size:12px;color:var(--test-ink)}
body[data-test-ui="premium"] .cbt-question-toolbar small{font-size:10px;color:var(--test-muted);margin-top:3px}
body[data-test-ui="premium"] .test-save-feedback{font-size:10px;color:var(--test-success);max-width:240px;line-height:1.4}
body[data-test-ui="premium"] .test-save-feedback[data-error="true"]{color:#bd523d}
body[data-test-theme="dark"] .test-save-feedback[data-error="true"]{color:#ffb49d}
body[data-test-ui="premium"] .test-inline-language{display:flex!important;align-items:center;gap:5px;margin:0;font-size:10px;color:var(--test-muted)}
body[data-test-ui="premium"] .test-inline-language label{font-size:0}
body[data-test-ui="premium"] .test-inline-language label:after{content:'Language';font-size:10px}
body[data-test-ui="premium"] .test-inline-language select{font-size:11px;padding:5px 7px;border:1px solid var(--test-line);border-radius:6px;background:var(--test-soft);color:var(--test-ink);min-height:30px;width:auto}
body[data-test-ui="premium"] .test-visible-marking{display:flex!important;gap:4px}
body[data-test-ui="premium"] .test-visible-marking span{font-size:9px;padding:4px 5px;color:var(--test-muted);background:var(--test-soft);border-radius:4px;white-space:nowrap}
body[data-test-ui="premium"] .cbt-question-body{flex:1;min-height:0!important;padding:24px clamp(18px,4vw,50px);overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;color:var(--test-ink);scroll-behavior:auto}
body[data-test-ui="premium"] .cbt-question-body h2{max-width:900px;margin:0 auto 22px;font-size:var(--question-size,16px)!important;font-weight:450;line-height:1.65;letter-spacing:0;color:var(--test-ink);white-space:pre-line;overflow-wrap:anywhere}
body[data-test-ui="premium"] .cbt-question-body>[role="radiogroup"]{max-width:900px;margin:auto}
body[data-test-ui="premium"] .cbt-option{position:relative;align-items:flex-start;gap:11px;min-height:47px;padding:11px 14px;margin:8px 0;border:1px solid var(--test-line);border-radius:9px;background:var(--test-paper);font-size:var(--question-size,16px);line-height:1.6;color:var(--test-ink);transition:border-color .12s,background .12s}
body[data-test-ui="premium"] .cbt-option:hover{background:var(--test-soft);border-color:var(--test-accent)}
body[data-test-ui="premium"] .cbt-option:has(input:checked){border-color:var(--test-accent);background:var(--test-selected);box-shadow:inset 3px 0 var(--test-accent)}
body[data-test-ui="premium"] .cbt-option input{accent-color:var(--test-accent);width:17px;height:17px;margin-top:4px;flex-shrink:0}
body[data-test-ui="premium"] .cbt-option>span{min-width:0;overflow-wrap:anywhere}
body[data-test-ui="premium"] .cbt-option .letter{font:650 11px/1.5 ui-monospace,monospace;color:var(--test-muted);margin-right:8px}
body[data-test-ui="premium"] .cbt-question-body .source-paper-stem{width:auto!important;max-width:100%!important;height:auto;max-height:none;background:#fff;border-radius:7px;padding:7px;margin:12px auto 20px;display:block}
body[data-test-ui="premium"] .source-paper-option{max-width:100%!important;height:auto;background:#fff;border-radius:4px}
body[data-test-ui="premium"] .cbt-bottom{position:relative;bottom:auto;flex:0 0 auto;background:var(--test-paper);border-top:1px solid var(--test-line);padding:10px 20px calc(10px + env(safe-area-inset-bottom));gap:8px;min-height:58px;flex-wrap:wrap!important}
body[data-test-ui="premium"] .cbt-bottom>.cbt-btn{min-height:39px;border-radius:7px;background:var(--test-paper);border-color:var(--test-line);color:var(--test-ink);padding:8px 12px;font-size:11px;line-height:1.35}
body[data-test-ui="premium"] .cbt-bottom>#next{background:#2859d6;color:#fff;border-color:#2859d6;max-width:210px;min-width:130px}
body[data-test-ui="premium"] .cbt-bottom>#mark{background:var(--test-soft);color:var(--test-ink);min-width:72px}
body[data-test-ui="premium"] #mark[aria-pressed="true"]{color:#7650af;border-color:#a78bca;background:#f3effa}
body[data-test-theme="dark"] #mark[aria-pressed="true"]{color:#d9c5ff;background:#392f50}
body[data-test-ui="premium"] .cbt-bottom>#submit-section{background:var(--test-soft);border:1px solid var(--test-accent);color:var(--test-accent);min-width:130px;flex:0 1 auto;font-size:11px;padding:8px 11px;min-height:39px}
body[data-test-ui="premium"] .cbt-btn:disabled{opacity:.42;cursor:not-allowed}
body[data-test-ui="premium"] .palette-heading{font-size:13px;color:var(--test-ink)}
body[data-test-ui="premium"] .palette-subtitle,body[data-test-ui="premium"] .palette-note,body[data-test-ui="premium"] .legend-row{color:var(--test-muted);font-size:10px;line-height:1.5}
body[data-test-ui="premium"] .palette-note{padding-top:14px}
body[data-test-ui="premium"] .cbt-analysis{border-color:var(--test-line);margin-top:18px}
body[data-test-ui="premium"] .cbt-analysis h3,body[data-test-ui="premium"] .legend-row strong{color:var(--test-ink)}
body[data-test-ui="premium"] .cbt-numbers{grid-template-columns:repeat(5,minmax(0,1fr));gap:9px;padding:5px 3px}
body[data-test-ui="premium"] .qnum{min-height:34px;height:34px;border-radius:7px;background:var(--test-soft);border-color:var(--test-line);color:var(--test-ink);font-size:11px;font-weight:650}
body[data-test-ui="premium"] .qnum.answered{background:#167d60;border-color:#167d60;color:#fff}
body[data-test-ui="premium"] .qnum.visited{background:#fff1da;border-color:#e5b56d;color:#85530d}
body[data-test-ui="premium"] .qnum.marked{background:#7955ab;border-color:#7955ab;color:#fff;border-radius:11px}
body[data-test-ui="premium"] .qnum.current{outline:2px solid var(--test-accent);outline-offset:2px}
body[data-test-ui="premium"] .test-map-filters{display:flex;flex-wrap:wrap;gap:4px;margin:5px 0 12px}
body[data-test-ui="premium"] .test-map-filters button{background:var(--test-soft);border:1px solid var(--test-line);border-radius:5px;padding:5px 7px;font-size:10px;color:var(--test-muted);min-height:29px}
body[data-test-ui="premium"] .test-map-filters button[aria-pressed="true"]{background:var(--test-selected);color:var(--test-accent);border-color:var(--test-accent)}
body[data-test-ui="premium"] .test-map-filters small{flex-basis:100%;font-size:10px;color:var(--test-muted);margin-top:3px}
body[data-test-ui="premium"] .cbt-palette .section-tab{background:var(--test-soft);color:var(--test-muted);border-color:var(--test-line);min-height:34px}
body[data-test-ui="premium"] .cbt-palette .section-tab.active{background:var(--test-selected);border-color:var(--test-accent);color:var(--test-accent)}
body[data-test-ui="premium"] .palette-compact-actions .cbt-btn{background:var(--test-soft);color:var(--test-ink);border-color:var(--test-line);min-height:38px;font-size:11px}
body[data-test-ui="premium"] .test-actions-panel{z-index:100;background:var(--test-paper);border-color:var(--test-line);color:var(--test-ink);width:270px;border-radius:10px;box-shadow:0 16px 40px #07162935;max-height:75dvh}
body[data-test-ui="premium"] .test-actions-panel button{background:var(--test-paper);color:var(--test-ink);font-size:12px;min-height:36px}
body[data-test-ui="premium"] .test-actions-panel button:hover{background:var(--test-soft)}
body[data-test-ui="premium"] .test-comfort-settings{padding:10px 10px 12px;border-bottom:1px solid var(--test-line);margin-bottom:5px;display:grid;gap:9px}
body[data-test-ui="premium"] .test-comfort-settings strong{font-size:12px;margin-bottom:3px}
body[data-test-ui="premium"] .test-comfort-settings label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;color:var(--test-muted)}
body[data-test-ui="premium"] .test-comfort-settings select{font-size:11px;max-width:140px;min-height:31px;padding:5px 7px;background:var(--test-soft);color:var(--test-ink);border:1px solid var(--test-line);border-radius:5px}
body[data-test-ui="premium"] .test-comfort-settings input[type="checkbox"]{width:16px;height:16px;margin:0;accent-color:var(--test-accent)}
body[data-test-ui="premium"] .test-focus-setting{justify-content:flex-start!important}
body[data-test-ui="premium"][data-test-spacing="relaxed"] .cbt-question-body h2,body[data-test-ui="premium"][data-test-spacing="relaxed"] .cbt-option{line-height:1.95}
body[data-test-ui="premium"].test-focus .cbt-workspace{grid-template-columns:minmax(0,1fr)}
body[data-test-ui="premium"].test-focus .cbt-palette:not(.open){display:none}
body[data-test-ui="premium"] :is(button,select,input,summary):focus-visible{outline:3px solid var(--test-accent);outline-offset:3px}
body[data-test-ui="premium"] .test-dialog{max-width:540px;border-radius:15px;background:var(--test-paper);color:var(--test-ink);padding:26px;box-shadow:0 24px 90px #07162966}
body[data-test-ui="premium"] #dialog .modal-backdrop{z-index:150;background:#071629a6;backdrop-filter:blur(3px)}
body[data-test-ui="premium"] .test-dialog h2{color:var(--test-ink);font-size:21px!important;margin-bottom:16px}
body[data-test-ui="premium"] .test-dialog .muted{color:var(--test-muted);line-height:1.7;font-size:13px}
body[data-test-ui="premium"] .test-dialog .secondary{background:var(--test-soft);border-color:var(--test-line);color:var(--test-ink)}
.test-submit-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:8px 0 16px}
.test-submit-summary>span{background:var(--test-soft,#f5f7fb);border:1px solid var(--test-line,#dce4ef);padding:12px;border-radius:9px;text-align:center;font-size:11px;display:block}
.test-submit-summary b{display:block;font-size:25px;font-weight:700;color:var(--test-ink,#182b45);line-height:1.4}
.test-submit-checks{display:flex;gap:7px;flex-wrap:wrap}
.test-submit-checks button{border:1px solid var(--test-line,#dce4ef);background:var(--test-paper,#fff);color:var(--test-accent,#2859d6);border-radius:6px;padding:8px 10px;font-size:12px;min-height:36px}
.test-submit-checks button:disabled{opacity:.4;cursor:not-allowed}
@media(min-width:901px){body[data-test-ui="premium"] .cbt-mobile-palette{display:none!important}body[data-test-ui="premium"].test-focus .cbt-mobile-palette{display:inline-block!important}body[data-test-ui="premium"] .palette-backdrop{display:none}}
@media(max-width:1100px) and (min-width:901px){body[data-test-ui="premium"] .cbt-workspace{grid-template-columns:minmax(0,1fr) 220px;padding:8px;gap:8px}body[data-test-ui="premium"] .cbt-question-toolbar{padding:9px 14px}body[data-test-ui="premium"] .test-visible-marking{display:none!important}}
@media(max-width:900px){
 body[data-test-ui="premium"] .cbt-header{padding:8px 12px;gap:10px;flex-basis:54px;height:54px;min-height:54px}
 body[data-test-ui="premium"] .cbt-brand>div,body[data-test-ui="premium"] .cbt-brand b{display:none}
 body[data-test-ui="premium"] .cbt-title small{font-size:11px}
 body[data-test-ui="premium"] .cbt-clock{padding:5px 8px;gap:6px;border-radius:7px}
 body[data-test-ui="premium"] .cbt-clock .timer{font-size:19px;min-width:57px}
 body[data-test-ui="premium"] .cbt-clock small{font-size:8px;max-width:48px}
 body[data-test-ui="premium"] .test-section-rail{padding:6px 10px;min-height:42px;gap:2px}
 body[data-test-ui="premium"] .test-section-rail button{font-size:10px;padding:6px 9px;gap:8px;min-height:30px}
 body[data-test-ui="premium"] .cbt-workspace{display:flex;flex-direction:column;padding:0;gap:0;min-height:0}
 body[data-test-ui="premium"] .cbt-question-pane{flex:1;min-height:0;border:0;border-radius:0;width:100%}
 body[data-test-ui="premium"] .cbt-question-toolbar{padding:8px 13px;gap:6px 8px;min-height:64px}
 body[data-test-ui="premium"] .cbt-question-toolbar>div:first-child{flex:1;min-width:50%}
 body[data-test-ui="premium"] .test-save-feedback{flex:1;order:5;font-size:10px;max-width:none;min-width:130px}
 body[data-test-ui="premium"] .test-visible-marking{display:none!important}
 body[data-test-ui="premium"] .test-inline-language{order:6}
 body[data-test-ui="premium"] .test-inline-language label{display:none}
 body[data-test-ui="premium"] .cbt-mobile-palette{display:block!important;border:1px solid var(--test-line);background:var(--test-soft);color:var(--test-ink);min-height:34px;padding:6px 10px;font-size:11px;border-radius:7px}
 body[data-test-ui="premium"] .cbt-question-body{padding:18px 16px 20px;scrollbar-gutter:auto}
 body[data-test-ui="premium"] .cbt-question-body h2{margin:0 0 18px}
 body[data-test-ui="premium"] .cbt-option{padding:10px 11px;min-height:45px;margin:8px 0;border-radius:8px}
 body[data-test-ui="premium"] .cbt-bottom{padding:8px 12px calc(8px + env(safe-area-inset-bottom));gap:6px;min-height:58px}
 body[data-test-ui="premium"] .cbt-bottom>.cbt-btn{min-height:40px;padding:8px 10px;font-size:11px}
 body[data-test-ui="premium"] .cbt-bottom>#prev{width:35px;min-width:35px;font-size:17px;padding:5px}
 body[data-test-ui="premium"] .cbt-bottom>#mark{min-width:65px}
 body[data-test-ui="premium"] .cbt-bottom>#clear{min-width:48px}
 body[data-test-ui="premium"] .cbt-bottom>#next{min-width:116px;max-width:none;margin-left:auto;flex:1}
 body[data-test-ui="premium"] .cbt-bottom>#submit-section{flex:1 1 100%;min-height:37px;font-size:11px}
 body[data-test-ui="premium"] .cbt-palette{display:none}
 body[data-test-ui="premium"] .cbt-palette.open{display:flex!important;position:fixed;inset:auto 0 0;width:100%;max-width:none;max-height:83dvh;height:auto;min-height:200px;padding:18px 20px calc(20px + env(safe-area-inset-bottom));border-radius:19px 19px 0 0;border:1px solid var(--test-line);border-bottom:0;z-index:91;transform:none;overflow:auto;box-shadow:0 -15px 70px #06132640}
 body[data-test-ui="premium"] .cbt-palette.open .palette-close{display:block!important;align-self:flex-end;background:var(--test-soft);color:var(--test-ink);border-color:var(--test-line);min-height:36px;font-size:12px;margin-bottom:8px}
 body[data-test-ui="premium"] .palette-backdrop{position:fixed;inset:0;z-index:90;background:#06132699;display:block;border:0;border-radius:0;width:100%;height:100%}
 body[data-test-ui="premium"] .cbt-numbers{grid-template-columns:repeat(auto-fill,minmax(39px,1fr));gap:10px}
 body[data-test-ui="premium"] .qnum{height:38px}
 body[data-test-ui="premium"] .cbt-palette .cbt-sections{gap:6px}
 body[data-test-ui="premium"] .cbt-palette .section-tab{flex:1 1 42%;font-size:11px;min-height:38px}
 body[data-test-ui="premium"] .test-actions-panel{width:min(280px,calc(100vw - 24px));max-height:76dvh}
 body[data-test-ui="premium"] .test-dialog{padding:20px;border-radius:13px}
}
@media(max-width:360px){body[data-test-ui="premium"] .cbt-brand{display:none!important}body[data-test-ui="premium"] .cbt-bottom{padding-inline:8px;gap:5px}body[data-test-ui="premium"] .cbt-bottom>#mark{min-width:58px}body[data-test-ui="premium"] .cbt-bottom>#next{min-width:101px;font-size:10px}body[data-test-ui="premium"] .cbt-title small{max-width:125px}}
@media(prefers-reduced-motion:reduce){body[data-test-ui="premium"] *,body[data-test-ui="premium"] *:before,body[data-test-ui="premium"] *:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* Colour studio: compact, task-specific accents for the test workspace. */
body.exam-mode[data-test-ui="premium"]{--test-bg:#eef1fb;--test-accent:#4f46c8;--test-selected:#eeedff;--test-line:#dce2f1}
body.exam-mode[data-test-theme="warm"]{--test-bg:#f1ece2;--test-accent:#6651b5;--test-selected:#f1eafa;--test-line:#e3d9ca}
body.exam-mode[data-test-theme="dark"]{--test-bg:#101528;--test-accent:#b3acff;--test-selected:#302d50;--test-line:#39415f}
body[data-test-ui="premium"] .cbt-header{background:linear-gradient(112deg,#172b55 0%,#343080 62%,#52409a 100%);box-shadow:0 2px 12px #18264b22}
body[data-test-ui="premium"] .cbt-brand .brand-icon{background:linear-gradient(135deg,#8783ff,#5952d6);border-color:#ffffff55;color:white;box-shadow:0 3px 9px #10183430}
body[data-test-ui="premium"] .cbt-clock{background:#121c3c66;border-color:#aea8ff66;box-shadow:inset 0 1px #ffffff12}
body[data-test-ui="premium"] .cbt-clock .timer{color:#aaf0de}
body[data-test-ui="premium"] .timer[data-urgency="soon"]{color:#ffe09a}
body[data-test-ui="premium"] .timer[data-urgency="urgent"]{color:#ffb8c3}
body[data-test-ui="premium"] .test-progress{background:#deddf6;height:4px;flex-basis:4px}
body[data-test-ui="premium"] .test-progress>span{background:linear-gradient(90deg,#6258db,#8b66df,#17a987)}
body[data-test-ui="premium"] .test-section-rail{gap:7px;background:var(--test-paper)}
body[data-test-ui="premium"] .test-section-rail button{border:1px solid var(--test-line);background:var(--test-soft);border-radius:8px;color:var(--test-ink);font-weight:550}
body[data-test-ui="premium"] .test-section-rail button.active{background:linear-gradient(120deg,#4b49bd,#7450c5);color:#fff;border-color:#6151be;box-shadow:0 3px 9px #5649b629}
body[data-test-ui="premium"] .test-section-rail small{background:#7887aa15;border-radius:5px;padding:3px 5px}
body[data-test-ui="premium"] .test-section-rail .active small{background:#ffffff26;color:#fff}
body[data-test-ui="premium"] .cbt-workspace{background:radial-gradient(ellipse at top left,#8276f010,transparent 55%),var(--test-bg)}
body[data-test-ui="premium"] .cbt-question-pane,body[data-test-ui="premium"] .cbt-palette{box-shadow:0 5px 20px #20335408;border-radius:14px}
body[data-test-ui="premium"] .cbt-question-toolbar{background:linear-gradient(100deg,var(--test-selected),var(--test-paper) 72%)}
body[data-test-ui="premium"] .cbt-question-toolbar b{color:var(--test-accent);font-weight:750}
body[data-test-ui="premium"] .test-save-feedback{padding:4px 7px;border-radius:5px;background:var(--test-soft)}
body[data-test-ui="premium"] .test-visible-marking span:first-child{background:#def5e9;color:#146b4c}
body[data-test-ui="premium"] .test-visible-marking span:last-child{background:#ffebe6;color:#a63b27}
body[data-test-ui="premium"] .cbt-option{border-radius:11px;box-shadow:0 2px 4px #22345b04;padding:12px 14px;transition:border-color .15s,background .15s,box-shadow .15s}
body[data-test-ui="premium"] .cbt-option .letter{display:inline-flex;align-items:center;justify-content:center;min-width:25px;min-height:25px;padding:2px 5px;border-radius:7px;background:var(--test-soft);color:var(--test-accent);font-weight:750;vertical-align:middle}
body[data-test-ui="premium"] .cbt-option:has(input:checked){border-color:var(--test-accent);background:var(--test-selected);box-shadow:inset 3px 0 var(--test-accent),0 3px 12px #6255c015}
body[data-test-ui="premium"] .cbt-option:has(input:checked) .letter{background:#5850ba;color:#fff}
body[data-test-ui="premium"] .cbt-bottom{background:linear-gradient(180deg,var(--test-paper),var(--test-soft));gap:8px}
body[data-test-ui="premium"] .cbt-bottom>.cbt-btn{border-radius:9px;min-height:42px;font-weight:700;box-shadow:0 2px 4px #21355009;transition:filter .15s,box-shadow .15s}
body[data-test-ui="premium"] .cbt-bottom>#prev{background:#e9efff;border-color:#c5d3f3;color:#3159a6}
body[data-test-ui="premium"] .cbt-bottom>#mark,
body[data-test-ui="premium"] #mark[aria-pressed="true"]{background:linear-gradient(120deg,#7350ba,#9254bf);color:#fff;border-color:#7750ac;box-shadow:0 3px 8px #7750ac25}
body[data-test-ui="premium"] #mark[aria-pressed="true"]{box-shadow:inset 0 0 0 2px #ffffff70,0 3px 8px #7750ac25}
body[data-test-ui="premium"] .cbt-bottom>#clear{background:#fff0d8;border-color:#e9c891;color:#89530b}
body[data-test-ui="premium"] .cbt-bottom>#next{background:linear-gradient(120deg,#087c6b,#14926a);border-color:#087c6b;color:#fff;box-shadow:0 4px 10px #087c6b26}
body[data-test-ui="premium"] .cbt-bottom>#submit-section{background:linear-gradient(120deg,#3b57bb,#5551bd);border-color:#4956b9;color:#fff;border-radius:9px;font-weight:700;min-height:42px}
body[data-test-ui="premium"] .palette-heading{border-left:3px solid #8a62d5;padding-left:9px;line-height:1.5}
body[data-test-ui="premium"] .qnum{border-radius:8px;box-shadow:0 2px 3px #24315108;font-weight:700}
body[data-test-ui="premium"] .qnum.answered{background:linear-gradient(140deg,#128565,#08745c);border-color:#08745c}
body[data-test-ui="premium"] .qnum.visited{background:#ffe4b5;border-color:#e4ab52;color:#744107}
body[data-test-ui="premium"] .qnum.marked{background:linear-gradient(140deg,#8860cc,#7047ad);border-color:#7047ad;border-radius:12px}
body[data-test-ui="premium"] .qnum.current{outline:2px solid var(--test-accent);outline-offset:3px}
body[data-test-ui="premium"] .legend-dot.answered{background:#128565}
body[data-test-ui="premium"] .legend-dot.visited{background:#ffe4b5;border:1px solid #e4ab52}
body[data-test-ui="premium"] .legend-dot.marked{background:#8056be}
body[data-test-ui="premium"] .test-map-filters button{border-radius:7px;min-height:32px}
body[data-test-ui="premium"] .test-map-filters button[aria-pressed="true"]{background:var(--test-selected);color:var(--test-accent);font-weight:700}
body[data-test-ui="premium"] .palette-compact-actions .cbt-btn{border-radius:9px;background:linear-gradient(120deg,#3656b7,#6550b8);color:white;border-color:#4d54b4;font-weight:650;min-height:42px}
body[data-test-ui="premium"] .test-actions-panel #submit{background:#eeebff;color:#5541a5;border:1px solid #d8cff7;border-radius:8px}
body[data-test-ui="premium"] .cbt-mobile-palette{background:var(--test-selected);border-color:var(--test-accent);color:var(--test-accent);font-weight:700}
body[data-test-ui="premium"] .test-submit-summary>span:nth-child(1){border-top:3px solid #159578}
body[data-test-ui="premium"] .test-submit-summary>span:nth-child(2){border-top:3px solid #df9b36}
body[data-test-ui="premium"] .test-submit-summary>span:nth-child(3){border-top:3px solid #8b5bc6}
body[data-test-theme="dark"] .cbt-bottom>#prev{background:#263655;border-color:#4d6692;color:#c1d6ff}
body[data-test-theme="dark"] .cbt-bottom>#clear{background:#42351f;border-color:#8a6935;color:#ffdc9e}
body[data-test-theme="dark"] .test-actions-panel #submit{background:#342b52;color:#d5c5ff;border-color:#64518a}
@media(hover:hover){
 body[data-test-ui="premium"] .cbt-btn:not(:disabled):hover{filter:brightness(1.07);box-shadow:0 4px 12px #24315124}
 body[data-test-ui="premium"] .qnum:hover{filter:brightness(.96)}
}
@media(max-width:900px){
 body[data-test-ui="premium"] .cbt-question-pane{border-radius:0;box-shadow:none}
 body[data-test-ui="premium"] .cbt-palette.open{border-radius:20px 20px 0 0}
 body[data-test-ui="premium"] .cbt-option{padding:10px 11px;border-radius:10px}
 body[data-test-ui="premium"] .cbt-bottom{gap:6px}
 body[data-test-ui="premium"] .cbt-bottom>.cbt-btn{padding:8px 10px;min-height:42px}
}
@media(prefers-reduced-motion:reduce){body[data-test-ui="premium"] .cbt-btn,body[data-test-ui="premium"] .cbt-option{transition:none}}