:root{color:#e3e1ef;background:#0d0d17;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.56}code{border-radius:4px;background:#1e1f29;padding:2px 5px}.center-shell{display:grid;min-height:100vh;place-items:center;padding:24px}.loading-panel,.empty-state{width:min(100%,620px);border:1px solid #33343e;border-radius:8px;background:#1a1b25;padding:24px;color:#c5c5d9}.empty-state{display:grid;gap:12px}.empty-state strong,.loading-panel{color:#e3e1ef}.admin-shell{display:grid;min-height:100vh;grid-template-columns:280px minmax(0,1fr);background:radial-gradient(circle at top left,rgb(62 82 255 / 14%),transparent 30%),#0d0d17}.admin-sidebar{border-right:1px solid #33343e;background:#12131ceb;padding:24px 16px}.brand-block{display:flex;align-items:center;gap:12px;margin-bottom:28px;padding:0 8px}.brand-mark{display:grid;width:44px;height:44px;place-items:center;border-radius:8px;background:linear-gradient(135deg,#3e52ff,#fa29ef);color:#fff;font-weight:800}.brand-kicker,.brand-name{margin:0}.brand-kicker{color:#c5c5d9;font-size:.78rem;font-weight:700;text-transform:uppercase}.brand-name{color:#fff;font-weight:800}.sidebar-nav{display:grid;gap:6px}.nav-item{display:flex;align-items:center;width:100%;gap:10px;border:1px solid transparent;border-radius:8px;background:transparent;color:#c5c5d9;padding:10px;text-align:left}.nav-item:hover,.nav-item:focus-visible,.nav-item.active{border-color:#444656;background:#1e1f29;color:#fff}.nav-item.active{box-shadow:inset 3px 0 #bdc2ff}.nav-icon{display:grid;width:28px;height:28px;flex:0 0 auto;place-items:center;border-radius:8px;background:#292933;color:#bdc2ff;font-size:.8rem;font-weight:800}.admin-main{min-width:0}.admin-header{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid #33343e;background:#0d0d17b8;padding:18px 28px}.admin-header h1{margin:4px 0 0;font-size:1.35rem;letter-spacing:0}.profile-chip{display:flex;align-items:center;min-width:0;gap:10px;border:1px solid #33343e;border-radius:8px;background:#1a1b25;padding:8px 10px}.profile-chip strong,.profile-chip small{display:block}.profile-chip small{color:#c5c5d9;text-transform:capitalize}.avatar{display:grid;width:36px;height:36px;place-items:center;border-radius:8px;background:#33343e;color:#c6f341;font-weight:800}.sign-out-button{min-height:34px;border:1px solid #444656;border-radius:8px;background:#12131c;color:#e3e1ef;padding:6px 10px;font-size:.82rem;font-weight:800}.admin-content{padding:28px}.page-stack{display:grid;gap:20px}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.page-heading h2{margin:0;font-size:1.6rem;letter-spacing:0}.page-heading p,.metric-card p,.quiz-set-row p,.form-panel p,.empty-state p{color:#c5c5d9;line-height:1.55}.eyebrow{margin:0 0 8px;color:#aad622;font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.metric-card,.quiz-set-row,.form-panel,.table-panel{border:1px solid #33343e;border-radius:8px;background:#1e1f29e0}.metric-card{padding:18px}.metric-card span{color:#c5c5d9;font-size:.9rem}.metric-card strong{display:block;margin-top:8px;color:#fff;font-size:1.05rem}.toolbar{display:flex;align-items:end;flex-wrap:wrap;gap:12px}.search-field,.select-field,.form-panel label{display:grid;gap:7px;color:#c5c5d9;font-size:.86rem;font-weight:700}.search-field{min-width:min(100%,360px);flex:1}input,select,textarea{min-height:42px;border:1px solid #444656;border-radius:8px;background:#12131c;color:#e3e1ef;padding:9px 11px}input:focus,select:focus,textarea:focus,button:focus-visible{outline:2px solid #bdc2ff;outline-offset:2px}textarea{min-height:88px;resize:vertical}.primary-button,.secondary-button,.row-actions button,.admin-table-row button{min-height:40px;border-radius:8px;padding:8px 12px;font-weight:800}.primary-button{border:0;background:linear-gradient(135deg,#3e52ff,#fa29ef);color:#fff}.secondary-button,.row-actions button,.admin-table-row button{border:1px solid #444656;background:#1a1b25;color:#e3e1ef}.list-stack{display:grid;gap:12px}.quiz-set-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:20px;align-items:center;padding:18px}.quiz-set-main{display:flex;align-items:flex-start;min-width:0;gap:12px}.quiz-set-row h3,.form-panel h3,.table-panel h3{margin:0;color:#fff;letter-spacing:0}.quiz-set-row p{margin:6px 0 0}.centered-panel{width:min(100%,840px);justify-self:center}.status-badge{display:inline-flex;width:fit-content;align-items:center;border-radius:999px;padding:5px 9px;background:#33343e;color:#e3e1ef;font-size:.78rem;font-weight:800;text-transform:capitalize}.status-badge.ready,.status-badge.active{background:#aad62229;color:#cefc4a}.status-badge.draft,.status-badge.pending{background:#bdc2ff29;color:#dfe0ff}.status-badge.archived,.status-badge.inactive{background:#ffb4ab24;color:#ffdad6}.row-meta{display:flex;gap:16px;margin:0}.row-meta dt{color:#8f8fa2;font-size:.75rem}.row-meta dd{margin:3px 0 0;color:#fff;font-weight:800}.row-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.cohort-management-grid{display:grid;grid-template-columns:minmax(260px,420px) minmax(0,1fr);gap:16px;align-items:start}.cohort-detail-stack{display:grid;gap:16px;min-width:0}.cohort-list{display:grid;gap:8px}.cohort-list-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:12px;align-items:center;width:100%;border:1px solid #33343e;border-radius:8px;background:#12131c;color:#e3e1ef;padding:12px;text-align:left}.cohort-list-row.active,.cohort-list-row:hover,.cohort-list-row:focus-visible{border-color:#bdc2ff;background:#bdc2ff1a}.cohort-list-row strong,.cohort-list-row small{display:block}.cohort-list-row small{margin-top:4px;color:#c5c5d9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cohort-action-strip,.import-actions{display:flex;flex-wrap:wrap;gap:10px}.cohort-action-strip button,.import-actions button{min-height:40px;border:1px solid #444656;border-radius:8px;background:#12131c;color:#e3e1ef;padding:8px 12px;font-weight:800}.nickname-rules-grid,.learner-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.inline-check{display:flex!important;align-items:center;gap:8px}.inline-check input{min-height:auto}.import-panel input[type=file]{color:#8f8fa2}.import-preview{display:grid;gap:12px;border:1px solid #33343e;border-radius:8px;background:#12131c;padding:12px}.import-summary{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.import-summary span{color:#c5c5d9}.import-summary strong{border:1px solid #444656;border-radius:999px;padding:5px 9px;color:#e3e1ef;font-size:.78rem}.import-issue-list{display:grid;gap:6px;border-top:1px solid #33343e;padding-top:10px}.import-issue-list strong{color:#fff}.import-issue-list p{margin:0;color:#c5c5d9;line-height:1.45}.import-issue-list span{color:#dfe0ff}.learner-table{display:grid;gap:8px;overflow-x:auto}.learner-table-row{display:grid;grid-template-columns:minmax(120px,.8fr) minmax(180px,1.2fr) minmax(150px,1fr) minmax(120px,.8fr) minmax(120px,.8fr) minmax(100px,auto) minmax(160px,auto);gap:12px;align-items:center;min-width:960px;border:1px solid #33343e;border-radius:8px;padding:12px}.learner-table-row.header{border:0;color:#8f8fa2;font-size:.76rem;font-weight:800;text-transform:uppercase}.learner-table-row small{display:block;margin-top:3px;color:#c5c5d9}.skeleton-row{height:88px;border:1px solid #33343e;border-radius:8px;background:linear-gradient(90deg,#1a1b25,#292933,#1a1b25);background-size:200% 100%;animation:loading-pulse 1.2s ease-in-out infinite}.admin-management-layout{grid-template-columns:minmax(260px,360px) minmax(0,1fr)}.admin-management-layout .page-heading{grid-column:1 / -1}.form-panel,.table-panel{padding:18px}.form-panel{display:grid;align-content:start;gap:14px}.form-message,.app-alert,.toast-banner{border:1px solid #444656;border-radius:8px;background:#12131c;color:#dfe0ff;padding:10px 12px}.toast-banner{border-color:#aad62261;background:#aad6221a;color:#cefc4a}.auth-screen{background:radial-gradient(circle at top left,rgb(62 82 255 / 18%),transparent 34%),#0d0d17}.auth-panel{display:grid;width:min(100%,460px);gap:18px;border:1px solid #33343e;border-radius:8px;background:#1a1b25;padding:28px}.auth-panel h1{margin:0;letter-spacing:0}.auth-panel p{color:#c5c5d9;line-height:1.55}.auth-form{display:grid;gap:14px}.auth-form label{display:grid;gap:7px;color:#c5c5d9;font-size:.86rem;font-weight:700}.auth-actions{display:flex;flex-wrap:wrap;gap:10px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.panel-heading span{color:#c5c5d9}.admin-table{display:grid;gap:8px}.admin-table-row{display:grid;grid-template-columns:minmax(170px,1.4fr) .8fr .8fr .9fr auto;gap:12px;align-items:center;border:1px solid #33343e;border-radius:8px;padding:12px}.admin-table-row.header{border:0;color:#8f8fa2;font-size:.78rem;font-weight:800;text-transform:uppercase}.admin-table-row small{display:block;color:#c5c5d9;margin-top:3px}.quiz-builder-shell{display:grid;gap:16px;border:1px solid #33343e;border-radius:12px;background:radial-gradient(circle at top right,rgb(250 41 239 / 10%),transparent 28%),#12131ce5;padding:18px}.quiz-builder-header,.field-row,.check-group,.option-editor-row,.question-list-item,.learner-preview,.preview-options div{display:flex}.quiz-builder-header{align-items:flex-start;justify-content:space-between;gap:16px}.quiz-builder-header h3{margin:0;color:#fff;font-size:1.25rem}.quiz-builder-header p{max-width:680px;color:#c5c5d9;line-height:1.55}.quiz-builder-grid{display:grid;grid-template-columns:minmax(240px,320px) minmax(220px,280px) minmax(360px,1fr) minmax(260px,320px);gap:14px;align-items:start}.quiz-metadata-panel,.question-list-panel,.question-editor-panel,.validation-panel{min-width:0}.field-row{gap:12px}.field-row>label{flex:1;min-width:0}.check-group{flex-direction:column;gap:8px;color:#c5c5d9;font-size:.86rem;font-weight:700}.check-group label{display:flex;align-items:center;gap:8px;color:#e3e1ef;font-weight:700}.check-group input{min-height:auto}.panel-heading.compact{margin-bottom:0}.panel-heading.compact h3{margin:0}.question-style-picker{display:flex;flex-wrap:wrap;gap:8px}.question-style-picker button{border:1px solid #444656;border-radius:999px;background:#12131c;color:#dfe0ff;padding:7px 9px;font-size:.76rem;font-weight:800}.question-list{display:grid;gap:8px}.question-list-item{width:100%;flex-direction:column;align-items:flex-start;gap:4px;border:1px solid #33343e;border-radius:8px;background:#12131c;color:#e3e1ef;padding:10px;text-align:left}.question-list-item.active{border-color:#bdc2ff;background:#bdc2ff1a}.question-list-item span,.question-list-item small{color:#c5c5d9}.question-list-item small{width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.guidance-note,.success-copy{border:1px solid rgb(170 214 34 / 22%);border-radius:8px;background:#aad62214;color:#cefc4a;padding:10px}.option-editor-list{display:grid;gap:10px}.option-editor-row{align-items:center;gap:8px}.option-editor-row input{flex:1;min-width:0}.correct-toggle{display:grid;width:42px;min-height:42px;place-items:center;border:1px solid #444656;border-radius:999px;background:#12131c;color:#bdc2ff;font-weight:900}.correct-toggle.active{border-color:#aad62299;background:#aad6222e;color:#cefc4a}.issue-list{display:grid;gap:8px;margin:0;padding-left:18px;line-height:1.45}.error-list{color:#ffdad6}.warning-list{color:#dfe0ff}.learner-preview{flex-direction:column;gap:12px;border:1px solid rgb(189 194 255 / 18%);border-radius:16px;background:radial-gradient(circle at top right,rgb(62 82 255 / 24%),transparent 34%),#0d0d17;padding:16px}.learner-preview>span{color:#8f8fa2;font-size:.75rem;font-weight:800;text-transform:uppercase}.learner-preview>strong{color:#fff;line-height:1.35}.preview-options{display:grid;gap:8px}.preview-options div{align-items:center;gap:10px;border:1px solid #33343e;border-radius:12px;background:#292933b8;padding:10px}.preview-options b{display:grid;width:28px;height:28px;place-items:center;border-radius:999px;background:#12131c;color:#ffabef}.preview-options span{color:#e3e1ef}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:20;display:grid;place-items:start center;overflow:auto;background:#0d0d17c7;padding:32px}.session-setup-modal{display:grid;width:min(100%,1120px);gap:16px;border:1px solid #444656;border-radius:12px;background:radial-gradient(circle at top right,rgb(62 82 255 / 14%),transparent 28%),#1a1b25;padding:20px;box-shadow:0 24px 80px #00000061}.session-setup-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:14px;align-items:start}.lobby-page{gap:18px}.lobby-hero{display:grid;grid-template-columns:minmax(320px,1fr) 180px minmax(220px,280px);gap:16px;align-items:stretch}.session-code-panel,.lobby-control-panel,.session-goal-band{border:1px solid #33343e;border-radius:8px;background:#1e1f29e0;padding:18px}.session-code-panel{display:grid;align-content:center;gap:10px}.session-code-panel span,.session-goal-band span{color:#8f8fa2;font-size:.78rem;font-weight:800;text-transform:uppercase}.session-code-panel strong{color:#fff;font-size:clamp(3rem,8vw,6.25rem);line-height:.95;letter-spacing:0}.session-code-panel p,.session-goal-band p{margin:0;color:#c5c5d9}.session-code-panel code{width:fit-content;max-width:100%;overflow-wrap:anywhere}.session-qr{width:180px;height:180px;align-self:center;border-radius:8px}.lobby-control-panel{display:grid;align-content:start;gap:10px}.lobby-control-panel h3{margin:0 0 4px;color:#fff}.lobby-control-panel button,.participant-row button{min-height:40px;border:1px solid #444656;border-radius:8px;background:#12131c;color:#e3e1ef;padding:8px 12px;font-weight:800}.lobby-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.participant-grid{display:grid;gap:8px}.participant-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:12px;align-items:center;border:1px solid #33343e;border-radius:8px;background:#12131c;padding:12px}.participant-row strong,.participant-row small{display:block}.participant-row small{margin-top:4px;color:#c5c5d9;text-transform:capitalize}.ready-dot{border:1px solid #444656;border-radius:999px;padding:5px 9px;color:#dfe0ff;font-size:.78rem;font-weight:800}.ready-dot.on{border-color:#aad6225c;background:#aad6221f;color:#cefc4a}.session-goal-band{display:flex;align-items:center;justify-content:space-between;gap:14px;border-color:#bdc2ff3d}.session-goal-band strong{display:block;margin-top:6px;color:#fff;font-size:1.1rem;text-transform:capitalize}.learner-join-screen,.learner-shell{min-height:100vh;background:#0d0d17;color:#f2f3fb}.learner-join-screen{display:grid;place-items:center;padding:20px}.learner-join-panel{display:grid;gap:12px;width:min(100%,420px);border:2px solid #444656;border-radius:8px;background:#12131c;padding:18px}.learner-join-panel h1,.learner-join-panel p{margin:0}.learner-join-form{display:grid;gap:10px}.learner-join-form label{color:#c5c5d9;font-size:.86rem;font-weight:700;text-transform:uppercase}.learner-inline-toggle{display:flex;align-items:center;gap:8px}.learner-inline-toggle input{min-height:auto}.learner-primary-button,.learner-secondary-button{min-height:56px;border-radius:8px;border:2px solid #444656;font-weight:800;font-size:1.05rem}.learner-primary-button{background:#3e52ff;color:#fff;border-color:#bdc2ff}.learner-secondary-button{background:#12131c;color:#e3e1ef}.learner-top-bar{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:2px solid #33343e;background:#12131c}.learner-top-bar small{display:block;color:#c5c5d9;text-transform:uppercase;font-weight:700;font-size:.76rem}.learner-top-bar strong{font-size:1.6rem}.learner-top-bar button{min-height:40px;border:2px solid #444656;border-radius:8px;background:#1e1f29;color:#e3e1ef;padding:8px 12px;font-weight:700}.learner-block-screen,.learner-question-screen,.learner-feedback-screen{min-height:calc(100vh - 76px);display:grid;align-content:center;gap:14px;padding:16px}.learner-block-screen{text-align:center}.learner-block-screen h2,.learner-question-screen h2,.learner-feedback-screen h2{margin:0;font-size:clamp(1.4rem,5vw,2rem)}.learner-block-screen p,.learner-feedback-screen p{margin:0;color:#c5c5d9}.learner-question-header{display:flex;justify-content:space-between;color:#c5c5d9;text-transform:uppercase;font-size:.8rem;font-weight:700}.learner-answer-grid{display:grid;gap:10px}.learner-answer-button{min-height:76px;border:2px solid #444656;border-radius:8px;background:#1e1f29;color:#f2f3fb;padding:12px;display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;align-items:center;text-align:left}.learner-answer-button span{display:grid;width:34px;height:34px;place-items:center;border:2px solid #444656;border-radius:8px;background:#12131c;font-size:1.05rem;font-weight:800}.learner-answer-button strong{font-size:1.05rem}.learner-feedback-actions{display:grid;gap:10px}.learner-shop-placeholder{border:2px dashed #444656;border-radius:8px;background:#12131c;padding:14px}.learner-shop-placeholder strong,.learner-shop-placeholder p{margin:0}.learner-shop-placeholder p{color:#c5c5d9;margin-top:6px}.learner-error{margin:0;border:1px solid #93000a;border-radius:8px;background:#93000a33;color:#ffdad6;padding:10px 12px}@keyframes loading-pulse{0%{background-position:200% 0}to{background-position:-200% 0}}@media(max-width:980px){.admin-shell{grid-template-columns:1fr}.admin-sidebar{border-right:0;border-bottom:1px solid #33343e}.sidebar-nav{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.metric-grid,.admin-management-layout,.cohort-management-grid,.quiz-builder-grid,.session-setup-grid,.lobby-hero,.lobby-metrics{grid-template-columns:1fr}.session-qr{justify-self:start}.quiz-set-row,.admin-table-row{grid-template-columns:1fr}}@media(max-width:640px){.admin-header,.page-heading,.page-heading.split{align-items:stretch;flex-direction:column}.admin-content,.admin-header{padding:18px}.quiz-builder-header,.field-row,.nickname-rules-grid,.learner-form-grid,.session-goal-band{flex-direction:column;grid-template-columns:1fr}.modal-backdrop{padding:16px}.participant-row{grid-template-columns:1fr}.row-actions{justify-content:flex-start}}