/* Usability test shell */
.tbar{position:fixed;top:0;left:0;right:0;z-index:50;height:60px;display:flex;align-items:center;gap:20px;padding:0 24px;background:rgba(3,7,26,.6);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.07)}
.brandrow{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brandrow b{font-size:16px;color:#fff}
.brandrow .sep{width:1px;height:18px;background:rgba(255,255,255,.16)}
.pill{font:700 10.5px/1 var(--font);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);padding:5px 9px;border-radius:999px;background:var(--card-2);border:1px solid var(--line)}
.steps{margin-left:auto;display:flex;gap:6px;align-items:center}
.steps i{width:22px;height:5px;border-radius:3px;background:rgba(255,255,255,.12);transition:background .4s,width .4s}
.steps i.done{background:linear-gradient(90deg,#07B282,#2A64F6)}
.steps i.now{width:34px;background:linear-gradient(90deg,#2A64F6,#9348FF);box-shadow:0 0 12px rgba(147,72,255,.6)}
main{position:relative;z-index:1;min-height:100vh;padding:96px 20px 48px;display:flex;align-items:center;justify-content:center}
main[hidden]{display:none}
/* screens */
.screen{width:100%;max-width:640px;animation:rise .45s cubic-bezier(.2,.8,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.hero{display:flex;flex-direction:column;gap:18px}
.orb{width:64px;height:64px;border-radius:50%;background:conic-gradient(from 200deg,#07B282,#2A64F6,#9348FF,#07B282);display:grid;place-items:center;box-shadow:0 0 50px -6px rgba(91,140,255,.7);animation:breathe 4s ease-in-out infinite}
.orb svg{width:28px;height:28px;color:#fff}
@keyframes breathe{50%{transform:scale(1.06)}}
.hero h1{font:800 clamp(28px,5vw,40px)/1.12 var(--font);letter-spacing:-.02em;color:#fff;text-wrap:balance}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#7FD8FF,#8FB0FF 40%,#C29BFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:17.5px;color:var(--ink-2);max-width:56ch}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:6px 0}
.facts div{padding:14px;border-radius:12px;background:var(--card);border:1px solid var(--line)}
.facts b{display:block;font-size:20px;color:#fff}
.facts span{font-size:13.5px;color:var(--ink-2)}
.promises{display:flex;flex-direction:column;gap:10px;margin:4px 0 6px;padding:0;list-style:none}
.promises li{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;font-size:15.5px;color:var(--ink)}
.promises li span.ic{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:rgba(91,140,255,.14);color:var(--accent-2)}
.promises li small{display:block;color:var(--ink-2);font-size:14px}
.consent{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:12px;background:var(--card);border:1px solid var(--line);font-size:14.5px;color:var(--ink-2);cursor:pointer}
.consent input{margin-top:3px;accent-color:var(--accent);width:16px;height:16px}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:6px}
.muted{color:var(--ink-2)} .small{font-size:13.5px}
/* questions */
.qcard{padding:26px;display:flex;flex-direction:column;gap:22px}
.qcard h2{font:700 24px/1.3 var(--font);color:#fff;letter-spacing:-.01em}
.q{display:flex;flex-direction:column;gap:10px}
.q>label,.q>.ql{font:600 16px/1.45 var(--font);color:var(--ink)}
.q .hint{font-size:13.5px;color:var(--ink-2);font-weight:400}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{padding:10px 14px;border-radius:12px;border:1px solid var(--line-2);background:var(--card);color:var(--ink);font:500 15px/1.25 var(--font);cursor:pointer;transition:all .18s;text-align:left}
.opt:hover{border-color:rgba(91,140,255,.6)}
.opt.on{background:rgba(91,140,255,.18);border-color:var(--accent);color:#fff;box-shadow:0 0 0 3px rgba(91,140,255,.15)}
.scale{display:grid;gap:6px}
.scale .row{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:6px}
.scale .opt{text-align:center;padding:13px 0;font-weight:700;font-size:16px}
.scale .ends{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-2)}
textarea.free{width:100%;min-height:84px;resize:vertical;padding:12px 14px;border-radius:12px;border:1px solid var(--line-2);background:rgba(0,0,0,.18);color:#fff;font:400 15.5px/1.5 var(--font)}
textarea.free:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.18)}
.req{color:var(--warn);font-size:12px;margin-left:4px}
/* stage: task panel + phone */
.stagewrap{position:relative;z-index:1;min-height:100vh;padding:72px 24px 16px;display:flex;align-items:stretch;justify-content:center;gap:40px}
.stagewrap[hidden]{display:none}
.taskpanel{width:380px;flex:0 0 380px;align-self:center;display:flex;flex-direction:column;gap:14px}
.phonebox{flex:0 1 480px;min-width:300px;height:calc(100vh - 88px);display:flex}
.phonebox iframe{flex:1;width:100%;height:100%;border:0;background:transparent;color-scheme:normal}
.tcard{padding:22px;border-radius:18px;background:linear-gradient(160deg,rgba(91,140,255,.16),rgba(147,72,255,.08) 55%,rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.12);box-shadow:0 24px 60px -30px rgba(0,0,0,.85);animation:rise .4s cubic-bezier(.2,.8,.2,1)}
.tcard .top{display:flex;justify-content:space-between;align-items:center}
.tcard .num{font:700 11px/1 var(--font);letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2)}
.tcard .timer{font:600 12px/1 var(--font);color:var(--ink-2);font-variant-numeric:tabular-nums}
.tcard h2{font:700 22px/1.3 var(--font);color:#fff;margin:12px 0 8px;letter-spacing:-.01em;text-wrap:balance}
.tcard p{color:var(--ink);font-size:16px}
.tcard .tip{margin-top:12px;font-size:13.5px;color:var(--ink-2)}
.tcard .tact{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap}
.tcard.ok{border-color:rgba(63,211,165,.6);background:linear-gradient(160deg,rgba(63,211,165,.18),rgba(91,140,255,.08))}
.okline{display:flex;align-items:center;gap:10px;margin-top:14px;padding:10px 12px;border-radius:12px;background:rgba(63,211,165,.14);color:#C9F5E6;font-weight:600;font-size:15px;animation:rise .3s ease}
.okline .ck{width:22px;height:22px;border-radius:50%;background:var(--ok);display:grid;place-items:center;color:#03071A}
.stuck{display:flex;flex-direction:column;gap:8px;margin-top:14px;animation:rise .3s ease}
.stuck .opts .opt{font-size:14px;padding:9px 12px}
.minihelp{font-size:13.5px;color:var(--ink-2);padding:0 4px}
/* mobile: phone fills the screen; the task card becomes a bar on top */
@media (max-width:860px){
  .tbar{height:52px;padding:0 14px} .tbar .steps i{width:12px} .tbar .steps i.now{width:20px} .brandrow .pill{display:none}
  main{padding:80px 16px 32px}
  .stagewrap{padding:52px 0 0;flex-direction:column;gap:0;height:100dvh;min-height:0;overflow:hidden}
  .taskpanel{position:sticky;top:52px;z-index:5;width:auto;flex:none;align-self:stretch;padding:8px 10px 0;background:linear-gradient(#03071A,rgba(3,7,26,.0))}
  .tcard{padding:14px 16px;border-radius:14px}
  .tcard h2{font-size:18px;margin:8px 0 4px}
  .tcard p{font-size:15px}
  .tcard.collapsed p,.tcard.collapsed .tip{display:none}
  .tcard .tact{margin-top:10px}
  .phonebox{height:auto;min-height:0;min-width:0;flex:1 1 auto}
  .taskpanel{position:relative;top:0;flex:none;background:none;padding:8px 10px}
  .taskpanel .minihelp{display:none}
  .facts{grid-template-columns:1fr 1fr 1fr}
  .qcard{padding:20px}
}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:100;overflow:hidden}
.confetti i{position:absolute;top:-12px;width:8px;height:12px;border-radius:2px;animation:fall 1.6s cubic-bezier(.2,.6,.4,1) forwards}
@keyframes fall{to{transform:translate(var(--dx),110vh) rotate(var(--r));opacity:.9}}
.thanks .big{font:800 clamp(30px,5vw,44px)/1.1 var(--font);color:#fff}
.why{display:grid;gap:10px;margin-top:6px}
.why div{padding:15px 18px;border-radius:12px;background:var(--card);border:1px solid var(--line);font-size:15.5px;line-height:1.5;color:var(--ink-2)}
.why b{font-size:16.5px}
.why b{color:#fff;display:block;margin-bottom:2px}

/* required questions: error highlight */
.q{border-radius:14px;transition:background .25s,box-shadow .25s}
.q.invalid{background:rgba(255,107,129,.07);box-shadow:0 0 0 1px rgba(255,107,129,.45);padding:8px 14px;margin:-8px -14px}
.q.invalid>.ql{color:#FFC2CC}
.q.invalid .opt:not(.on){border-color:rgba(255,107,129,.45)}
.qerr{display:flex;align-items:center;gap:7px;color:#FF8A9C;font:600 13.5px/1.3 var(--font);animation:rise .25s ease}
.btn.nudge{animation:nudge .35s ease}
@keyframes nudge{20%,60%{transform:translateX(-4px)}40%,80%{transform:translateX(4px)}}
input.free.one{width:100%;height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--line-2);background:rgba(0,0,0,.18);color:#fff;font:400 15.5px/1 var(--font)}
input.free.one::placeholder{color:var(--ink-3)}
input.free.one:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.18)}

/* rating scale: colored from hard (red) to easy (green), faces on the ends, live label */
.scale2{display:flex;flex-direction:column;gap:10px}
.scale2 .cells{position:relative;display:grid;grid-template-columns:repeat(var(--n),1fr);gap:6px;padding:6px;border-radius:16px;background:rgba(0,0,0,.18);border:1px solid var(--line)}
.scale2 .track{position:absolute;left:6px;right:6px;bottom:2px;height:4px;border-radius:2px;background:linear-gradient(90deg,hsl(352 85% 66%),hsl(38 95% 62%),hsl(158 70% 55%));opacity:.85;pointer-events:none}
.scale2 .cell{height:48px;padding:0;border-radius:11px;text-align:center;font:700 17px/1 var(--font);color:#fff;border:1px solid color-mix(in srgb,var(--c) 70%,transparent);background:color-mix(in srgb,var(--c) 30%,transparent);transition:transform .15s,background .2s,box-shadow .2s,color .2s}
.scale2 .cell:hover{background:color-mix(in srgb,var(--c) 48%,transparent);border-color:var(--c)}
.scale2 .cell.on{background:var(--c);border-color:var(--c);color:#06102A;transform:translateY(-2px) scale(1.06);box-shadow:0 8px 22px -8px var(--c),0 0 0 3px color-mix(in srgb,var(--c) 30%,transparent)}
.scale2 .ends{display:flex;justify-content:space-between;gap:12px;font:600 13.5px/1.2 var(--font)}
.scale2 .ends span{display:inline-flex;align-items:center;gap:6px}
.scale2 .ends .lo{color:hsl(352 85% 74%)} .scale2 .ends .hi{color:hsl(158 70% 64%);text-align:right}
.scale2 .readout{align-self:center;min-height:30px;padding:6px 14px;border-radius:999px;font:500 13.5px/1.3 var(--font);color:var(--ink-2);background:var(--card);border:1px solid var(--line);transition:all .2s}
.scale2 .readout.has{color:#fff;border-color:color-mix(in srgb,var(--sel,#5B8CFF) 60%,transparent);background:color-mix(in srgb,var(--sel,#5B8CFF) 16%,transparent)}
.scale2 .readout b{font-weight:800}
.q.invalid .scale2 .cells{border-color:rgba(255,107,129,.55)}
@media (max-width:480px){.scale2 .cells{gap:4px;padding:5px}.scale2 .cell{height:44px;font-size:16px;border-radius:9px}.scale2 .ends{font-size:12.5px}}
.scale2 .readout.peek{color:#fff}