:root{font-family:Roboto,Segoe UI,Arial,sans-serif;color:#1c1b1f;background:#fffbfe;font-synthesis:none;--primary:#6650a4;--on-primary:#fff;--container:#eaddff;--container-soft:#f3edf9;--surface:#fffbfe;--text:#1c1b1f;--muted:#625b71;--outline:#cac4d0;--error:#b3261e;--sidebar:#f6f2fa;color-scheme:light}*{box-sizing:border-box}body{margin:0;line-height:1.5}button,input,select,textarea{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.48}a{color:var(--primary);text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--primary);outline-offset:3px}h1,h2,h3,h4,p{margin:0}h1{font-size:38px;line-height:1.2;letter-spacing:-1px;font-weight:500}h2{font-size:23px;line-height:1.35;font-weight:500;letter-spacing:-.35px}h3{font-size:17px;line-height:1.4;font-weight:600}h4{font-size:15px;font-weight:600}small{font-size:13px}svg{flex-shrink:0}p,h1,h2,h3,strong,em,dd{overflow-wrap:anywhere}button{color:inherit}fieldset{border:0;padding:0;margin:0;min-width:0}input,textarea,select{min-width:0}blockquote{margin:0;border-left:3px solid var(--primary);padding:22px 26px;background:var(--container-soft);font-size:19px;line-height:1.75;border-radius:0 12px 12px 0}audio{width:100%;max-width:100%;height:42px}input[type=checkbox],input[type=radio]{width:20px;height:20px;accent-color:var(--primary);flex-shrink:0;margin:0}input[type=range]{accent-color:var(--primary);padding:0;min-height:30px;border:0}.muted{color:var(--muted)}.grow{flex:1;min-width:0}.stack{display:flex;flex-direction:column;gap:20px}.row{display:flex;align-items:center;gap:14px}.centered{display:flex;align-items:center;justify-content:center;gap:6px}.narrow{max-width:650px;margin:0 auto}.eyebrow{color:var(--muted);font-size:11px;letter-spacing:1.6px;font-weight:600}.button{display:inline-flex;justify-content:center;align-items:center;gap:9px;min-height:44px;border-radius:24px;padding:10px 23px;border:1px solid transparent;font-size:14px;font-weight:500;line-height:1.45;transition:background .15s,box-shadow .15s;text-align:center}.button.primary{background:var(--primary);color:var(--on-primary)}.button.primary:hover:not(:disabled){box-shadow:0 3px 9px #6650a433;filter:brightness(1.05)}.button.outline{border-color:var(--primary);background:transparent;color:var(--primary)}.button.outline:hover:not(:disabled){background:var(--container-soft)}.button.text{background:transparent;color:var(--primary);padding-inline:12px}.button.text:hover:not(:disabled){background:var(--container-soft)}.button.danger{background:var(--error);color:#fff}.icon-button{border:0;background:transparent;width:42px;height:42px;flex-shrink:0;display:inline-flex;justify-content:center;align-items:center;border-radius:50%;color:var(--primary)}.icon-button:hover:not(:disabled){background:#6650a418}.actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}.actions.left{justify-content:flex-start}.field{display:flex;flex-direction:column;gap:7px}.field>span{font-size:14px;font-weight:500;color:var(--primary)}.field input,.field textarea,.field select{border:1px solid var(--outline);border-radius:8px;background:var(--container-soft);color:var(--text);padding:13px 15px;width:100%;min-height:48px}.field textarea{resize:vertical}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--primary)}.field input::placeholder,.field textarea::placeholder{color:var(--muted);opacity:.65}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.search{display:flex;align-items:center;gap:12px;border:1px solid var(--outline);background:var(--container-soft);border-radius:12px;padding:0 16px;min-height:54px;color:var(--muted);width:100%}.search input{border:0;background:transparent;outline:none;padding:12px 0;color:var(--text);width:100%}.search:focus-within{outline:2px solid var(--primary);outline-offset:2px}.search input:focus-visible{outline:0}.search-form{display:flex;align-items:center;gap:12px}.checkbox{display:flex;align-items:center;gap:12px;cursor:pointer}.count{display:inline-flex;align-items:center;justify-content:center;border-radius:20px;background:var(--container);color:var(--primary);font-size:13px;min-width:28px;height:28px;padding:0 8px;vertical-align:middle}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.stack>.section-heading{margin-bottom:0}.section-note{margin:20px 0 25px}.brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:600;letter-spacing:-.5px;color:var(--primary)}.brand>svg{width:32px;height:32px}.app-shell{min-height:100dvh}.sidebar{position:fixed;inset:0 auto 0 0;width:250px;background:var(--sidebar);padding:35px 22px;display:flex;flex-direction:column;border-right:1px solid #e7e0ed;z-index:20}.sidebar .brand{padding-left:12px}.sidebar-label{font-size:10px;letter-spacing:1.6px;color:var(--muted);margin:58px 0 15px 16px}.sidebar nav{display:flex;flex-direction:column;gap:6px}.sidebar nav a{display:flex;align-items:center;gap:14px;border-radius:26px;padding:14px 18px;color:var(--muted);font-size:14px}.sidebar nav a.selected{background:var(--container);color:#21005d;font-weight:600}.sidebar-account{margin-top:auto;border-top:1px solid var(--outline);padding:23px 0 0;display:flex;align-items:center;gap:12px}.sidebar-account strong{display:block;font-size:14px}.sidebar-account small{display:block;font-size:11px;color:var(--muted)}.avatar{background:#d8c8ef;color:#493879;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;flex-shrink:0;font-size:20px;text-transform:uppercase}.avatar.small{width:36px;height:36px;font-size:16px}.workspace{margin-left:250px;max-width:1500px;padding:26px 48px 190px;min-height:100dvh}.desktop-topline{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11px;border-bottom:1px solid #e9e3ef;padding:0 0 19px;margin-bottom:40px}.page-header{margin-bottom:36px}.title-row{display:flex;align-items:center;gap:12px}.title-row h1{flex:1;min-width:0}.title-row>.icon-button:last-child{align-self:center}.greeting-name{font-weight:600;color:var(--primary)}.subtitle{margin-top:12px;color:var(--muted);font-size:14px}.page-header.compact h1{font-size:25px;letter-spacing:-.4px}.page-header.compact>.subtitle{padding-left:54px}.home-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.home-heading .eyebrow{display:block;margin-bottom:7px}.home-heading h2 .count{margin-left:8px}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}.card{background:var(--container);border-radius:12px;padding:20px;min-width:0}.card h3{color:#2b2140}.card-link{display:block;text-align:left;background:none;border:0;padding:0;cursor:pointer;color:inherit;min-width:0}.card-link.row{display:flex}.card-link h3{margin:7px 0}.participant-card{display:flex;align-items:center;gap:6px;padding:17px 16px}.participant-card strong{display:block;font-size:16px}.participant-card em{display:block;font-size:15px;font-style:italic;margin-top:4px}.card-link:hover h3,.card-link:hover strong{color:var(--primary)}.card-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:20px;color:var(--muted);font-size:12px}.status{padding:4px 10px;border-radius:12px;background:#fff6;font-size:11px}.status.completed{background:#d8eadb;color:#2c5733}.status.started{background:#fff1d5;color:#765b1a}.task-card{display:flex;flex-direction:column;gap:15px}.task-card .actions{margin-top:auto}.task-description{font-style:italic;color:var(--muted)}.task-grid{margin-bottom:28px}.study-intro{margin-bottom:24px}.study-intro h2{font-size:28px;margin-bottom:12px}.instruction{white-space:pre-wrap;line-height:1.75;font-size:17px}.floating-actions{position:fixed;bottom:28px;right:40px;display:flex;flex-direction:column;align-items:flex-end;gap:10px;z-index:15;max-width:calc(100vw - 30px)}.floating-actions .button{background:var(--container-soft);box-shadow:0 4px 14px #49387918;border-width:2px}.floating-actions .button:hover{background:var(--container)}.empty{display:flex;align-items:center;justify-content:center;flex-direction:column;min-height:250px;text-align:center;padding:40px 20px;gap:14px}.empty p{color:var(--muted);max-width:440px;font-size:14px}.empty-icon{background:var(--container-soft);color:var(--primary);width:70px;height:70px;border-radius:24px;display:flex;align-items:center;justify-content:center}.empty h3{font-size:19px;font-weight:500}.bottom-nav{display:none}.profile-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:26px}.profile-bar p{margin-top:5px;font-size:14px}.editor{padding-bottom:20px}.editor-columns{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-top:12px}.checklist{border:1px solid var(--outline);border-radius:12px;overflow:hidden}.check-row{display:flex;align-items:center;gap:15px;min-height:65px;padding:16px;cursor:pointer}.check-row:not(:last-child){border-bottom:1px solid #e7e0ed}.check-row:hover{background:var(--container-soft)}.check-row strong{display:block;font-size:15px;font-weight:500}.check-row small{display:block;color:var(--muted);margin-top:3px;font-size:12px}.editor-submit{border-top:1px solid var(--outline);padding-top:24px;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px}.stage-card{display:flex;align-items:flex-start;gap:12px}.stage-card p{margin:5px 0}.step-number{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;color:var(--primary);background:#fffbfea6;font-size:14px;flex-shrink:0}.step-number.done{background:#d8eadb;color:#2c5733}.card-tools{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;max-width:86px}.card-tools .icon-button{width:36px;height:36px}.step-progress{display:flex;gap:6px}.step-progress span{height:5px;flex:1;background:var(--container);border-radius:4px}.step-progress span.active{background:var(--primary)}.timer{text-align:center;font-size:84px;line-height:1.4;font-weight:400;color:var(--primary);font-variant-numeric:tabular-nums;padding:30px 0;letter-spacing:-3px}.small-timer{font-size:40px;padding:12px 0;letter-spacing:-1px}.success-emblem{width:76px;height:76px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);background:var(--container)}.reaction-zone{height:min(50vh,360px);border:2px solid var(--outline);background:var(--container-soft);border-radius:16px;width:100%;font-size:20px;color:var(--muted);touch-action:manipulation;-webkit-user-select:none;user-select:none}.reaction-zone.flash{background:#d60000;color:#fff;border-color:#d60000}.stroop-word{display:flex;align-items:center;justify-content:center;min-height:240px;font-size:58px;font-weight:600;letter-spacing:-1px;background:#fff;border-radius:16px}.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:-12px}.record-card{padding:23px;border:1px solid var(--outline);border-radius:12px;background:var(--container-soft)}.audio-playback{display:flex;flex-direction:column;gap:8px;align-items:flex-start;font-size:14px}.pulse-video{width:100%;max-height:160px;border-radius:12px;object-fit:cover;background:#16131b}.pulse-value{text-align:center;font-size:48px;color:var(--primary)}.pulse-value small{font-size:16px}.values{margin:0;display:flex;flex-direction:column;gap:10px;font-size:14px}.values>div{display:flex;justify-content:space-between;gap:20px}.values dt{color:var(--muted)}.values dd{margin:0;text-align:right;max-width:60%;white-space:pre-wrap}.stage-result{padding-top:16px;border-top:1px solid var(--outline)}.stage-result h4{margin-bottom:12px}.timing{display:flex;align-items:center;gap:6px;margin:6px 0 12px;color:var(--primary);font-size:14px}details>summary{cursor:pointer;color:var(--primary);font-size:14px;padding:8px 0;outline-offset:3px}details>.result-content{padding-top:15px}table{border-collapse:collapse;width:100%;font-size:13px;margin-top:14px;text-align:left}td,th{padding:10px 8px;border-bottom:1px solid var(--outline)}th{color:var(--muted);font-weight:500}.table-scroll{overflow-x:auto}.chart-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.chart{background:var(--container-soft);border-radius:12px;padding:22px;min-width:0}.chart svg{width:100%;height:auto;margin-top:18px}.chart svg text{fill:var(--muted);font-size:11px}.grid-line{stroke:var(--outline);stroke-dasharray:4 5}.chart .muted{margin-top:20px}dialog{padding:25px;border:0;border-radius:24px;background:var(--surface);color:var(--text);width:min(560px,calc(100% - 32px));max-height:85dvh;box-shadow:0 12px 60px #24143933}dialog::backdrop{background:#16102077;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}dialog.sheet{width:min(720px,calc(100% - 32px))}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px}.modal-head h2{font-size:22px}.alert{padding:14px 18px;border-radius:12px;display:flex;gap:12px;align-items:center;font-size:14px;margin-bottom:16px}.alert>span{flex:1}.alert p{margin-top:4px;font-size:13px}.alert.error{background:#fce8e6;color:#8c1d18}.alert.success{background:#e2efe5;color:#285633}.alert.warning{background:#fff3d6;color:#6e551c;flex-wrap:wrap}.inline-error{color:var(--error);font-size:14px}.auth-alerts{position:fixed;top:20px;right:24px;max-width:min(560px,calc(100vw - 32px));z-index:100}.loading-line{height:3px;position:fixed;top:0;left:0;right:0;background:linear-gradient(90deg,transparent,var(--primary),transparent);background-size:200% 100%;animation:loading 1.3s linear infinite;z-index:200}.spinner{width:30px;height:30px;border:3px solid var(--container);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.pull-hint{color:var(--primary);text-align:center;padding:12px;font-size:13px}.fatal{max-width:600px;margin:15vh auto;padding:24px}.fatal p{margin:20px 0}.auth-layout{display:grid;grid-template-columns:45% 55%;min-height:100dvh}.auth-intro{background:var(--container-soft);padding:48px 60px;display:flex;flex-direction:column;position:relative;overflow:hidden;min-height:100dvh}.auth-intro>.brand{margin-bottom:100px}.auth-intro h1{font-size:48px;line-height:1.22;margin:18px 0 25px;color:#35234e;letter-spacing:-1.5px}.auth-intro p{color:var(--muted);font-size:16px;line-height:1.8}.auth-intro small{margin-top:auto;padding-top:80px;color:var(--muted);font-size:11px;z-index:1}.auth-art{height:160px;position:relative;margin-top:55px;display:flex;align-items:center;justify-content:center}.auth-art span{position:absolute;border:1px solid #bca5d8;border-radius:50%;width:230px;height:230px}.auth-art span:nth-child(2){width:330px;height:330px;opacity:.5}.auth-art span:nth-child(3){width:430px;height:430px;opacity:.25}.auth-art>svg{height:65px;width:65px;color:var(--primary);background:var(--container-soft);padding:10px;box-sizing:content-box}.auth-main{display:flex;align-items:center;justify-content:center;padding:60px 40px}.auth-form{width:100%;max-width:450px}.auth-form>h1{font-size:32px;margin:12px 0}.auth-form .page-header{margin-bottom:30px}.role-options{display:flex;flex-direction:column;gap:16px;margin-top:36px}.role-card{border:1px solid var(--outline);background:var(--container-soft);border-radius:12px;display:flex;align-items:center;gap:16px;text-align:left;padding:22px;color:var(--primary);width:100%}.role-card:hover{border-color:var(--primary);background:var(--container)}.role-card>span{flex:1;min-width:0}.role-card strong{display:block;font-weight:500;font-size:16px}.role-card small{display:block;color:var(--muted);font-size:12px;margin-top:5px}.role-card>svg:last-child{width:19px}.mobile-brand{display:none}.password-field{position:relative}.password-field input{padding-right:52px}.password-field>.icon-button{position:absolute;right:5px;bottom:4px}.remembered{margin-top:28px}.remembered h3{font-size:14px;color:var(--muted);margin-bottom:10px;font-weight:500}.remembered-row{display:flex;align-items:center;border-bottom:1px solid var(--outline);gap:8px}.remembered-row>button:first-child{flex:1;background:none;border:0;display:flex;align-items:center;gap:12px;text-align:left;padding:12px 0;min-width:0}.remembered-row strong,.remembered-row small{display:block;font-size:13px}.remembered-row small{color:var(--muted)}.auth-switch{margin-top:26px;font-size:14px;color:var(--muted);text-align:center}.auth-switch button{color:var(--primary);background:none;border:0;padding:4px;font-weight:500}@keyframes spin{to{transform:rotate(360deg)}}@keyframes loading{to{background-position:-200% 0}}@media(min-width:1750px){.workspace{margin-inline:auto;padding-left:280px;max-width:1700px}}@media(max-width:1150px){.sidebar{width:210px;padding-inline:16px}.workspace{margin-left:210px;padding-inline:28px}.home-heading{align-items:flex-start;flex-direction:column}.auth-intro{padding:40px}.auth-intro h1{font-size:40px}.editor-columns{gap:24px}.chart-grid{grid-template-columns:1fr}.profile-bar{flex-wrap:wrap}}@media(max-width:760px){h1{font-size:32px}h2{font-size:21px}.sidebar,.desktop-topline{display:none}.workspace{margin:0;padding:26px 16px 205px}.page-header{margin-bottom:30px}.page-header.compact h1{font-size:22px}.page-header.compact{margin-left:-8px}.subtitle{font-size:14px}.card-grid{grid-template-columns:1fr;gap:12px;margin-top:18px}.card{padding:16px}.home-heading{gap:20px}.home-heading>.button{width:100%}.home-heading .eyebrow{display:none}.search{min-height:50px}.floating-actions{bottom:20px;right:16px;left:16px;align-items:flex-end;gap:8px}.floating-actions .button{font-size:12px;min-height:44px;padding:10px 15px;max-width:100%}.participant-fab{bottom:calc(96px + env(safe-area-inset-bottom))}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;padding:8px 20px calc(8px + env(safe-area-inset-bottom));background:#f1ebf7;border-top:1px solid #e7e0ed;z-index:25;justify-content:space-around}.bottom-nav>a{display:flex;align-items:center;gap:4px;flex-direction:column;font-size:12px;color:var(--muted);min-width:90px}.bottom-nav>a>span{display:flex;align-items:center;justify-content:center;width:64px;height:32px;border-radius:20px}.bottom-nav>a.selected{color:#21005d;font-weight:600}.bottom-nav>a.selected>span{background:#e1d4f5}.editor-columns{grid-template-columns:1fr}.editor-submit{flex-direction:column;align-items:stretch}.editor-submit>span{text-align:center;font-size:13px}.form-grid{gap:12px}.stage-card{gap:10px}.card-tools{max-width:72px}.profile-bar{align-items:flex-start;gap:18px}.profile-bar>.button{width:100%}.search-form{gap:8px}.search-form>.button{padding-inline:16px}.search input{font-size:14px}.empty{padding:32px 15px}.timer{font-size:72px}.small-timer{font-size:36px}.stroop-word{font-size:43px}.auth-layout{display:block}.auth-intro{display:none}.auth-main{min-height:100dvh;padding:48px 24px}.mobile-brand{display:flex;margin-bottom:54px}.auth-form>h1{font-size:30px}.auth-form .eyebrow{font-size:10px}.role-card{padding:20px 16px;gap:13px}.role-card strong{font-size:15px}.auth-alerts{right:16px;top:12px}.auth-main .page-header.compact h1{font-size:28px}dialog{padding:20px;border-radius:20px}dialog.sheet{margin:auto 0 0;width:100%;max-width:none;max-height:90dvh;border-radius:24px 24px 0 0;padding-bottom:calc(24px + env(safe-area-inset-bottom))}.modal-head h2{font-size:20px}.values{font-size:13px}.chart{padding:16px}.study-intro h2{font-size:25px}}@media(prefers-color-scheme:dark){:root{--primary:#d0bcff;--on-primary:#381e72;--container:#4f378b;--container-soft:#2b2535;--surface:#1c1b1f;--text:#e6e1e5;--muted:#cac4d0;--outline:#615969;--error:#f2b8b5;--sidebar:#242127;background:var(--surface);color:var(--text);color-scheme:dark}.sidebar{border-color:var(--outline)}.sidebar nav a.selected,.bottom-nav>a.selected{color:#eaddff}.sidebar nav a.selected{background:#4f378b}.card h3{color:#f2eaff}.avatar{background:#625179;color:#eee5ff}.card .muted,.card-footer{color:#ded4ed}.auth-intro h1{color:#eaddff}.desktop-topline,.check-row:not(:last-child){border-color:var(--outline)}.bottom-nav{background:#2b2535;border-color:var(--outline)}.bottom-nav>a.selected>span{background:#4f378b}.step-number,.status{background:#332447;color:#eaddff}.alert.error{background:#601d1a;color:#ffdad6}.alert.success{background:#21442a;color:#bde5c7}.alert.warning{background:#4a3c17;color:#f8e5ad}.button.danger{background:#8c1d18}.role-card:hover{background:#4f378b}.stroop-word{background:#fff}.grid-line{stroke:var(--outline)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}