/* Layout: a concept switcher outside the mock, then one full interactive holding page at a time. White canvas, 1020px column, survey in a 680px column. Single light theme by choice (TSL site look). */
:root{
  color-scheme:light;
  --bg:#ffffff; --fg:#181C25; --muted:#5d6670; --line:#e3e7e5; --chip:#f6f8f7;
  --accent:#0D8C5D; --on-accent:#ffffff; --soft:#e6f4ee; --dot:#d9dfdc; --err:#b4442c; --chrome:#f3f5f4;
  --display:"Merriweather",Georgia,"Times New Roman",serif;
  --body:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.5;overflow-x:hidden}
h1,h2,h3,p{margin:0}
button{font:inherit;color:inherit}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- shared mock pieces ---------- */
.mock{position:relative;background-color:var(--bg);background-image:radial-gradient(var(--dot) 1px,transparent 1.2px);background-size:24px 24px}
.wrap{max-width:1020px;margin:0 auto;padding:0 24px}
.nav{position:relative;z-index:5;display:flex;align-items:center;justify-content:flex-end;gap:14px;padding:20px 0}
.wordmark{font-family:var(--display);font-weight:900;font-size:18px;white-space:nowrap;margin-right:auto}
.by{font-size:12.5px;color:var(--muted);white-space:nowrap;margin-right:auto}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--on-accent);border:1px solid var(--accent);font-weight:600;font-size:15px;padding:10px 18px;border-radius:6px;cursor:pointer;white-space:nowrap;text-decoration:none}
.btn.ghost{background:#fff;color:var(--fg);border-color:var(--line)}
.btn.sm{font-size:13.5px;padding:7px 13px}
.btn:hover{filter:brightness(.96)}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);white-space:nowrap}
.muted{color:var(--muted)}
.foot{position:relative;z-index:5;border-top:1px solid var(--line);margin-top:56px;padding:22px 0 34px;display:flex;flex-wrap:wrap;gap:8px 26px;font-size:13.5px;color:var(--muted)}
.foot .grow{margin-right:auto}
.foot a{color:var(--fg)}

/* ---------- survey component ---------- */
.sv{max-width:680px;width:100%;margin:0 auto;text-align:left}
.sv-top{display:flex;align-items:center;gap:14px}
.sv-brand{font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.sv-rail{flex:1;height:3px;background:var(--line);border-radius:2px;overflow:hidden}
.sv-rail i{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}
.sv-count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:44px;text-align:right}
.sv-card{padding:26px 0 6px;min-width:0}
.sv-card h2{font-family:var(--display);font-weight:900;font-size:clamp(20px,3.6vw,29px);line-height:1.28;margin:8px 0 10px;text-wrap:balance}
.sv-help{color:var(--muted);margin:0 0 20px;max-width:58ch}
.sv-gap{height:12px}
.sv-opts{display:grid;gap:9px}
.sv-opt{display:flex;align-items:center;gap:12px;text-align:left;background:var(--chip);border:1px solid var(--line);border-radius:8px;padding:11px 14px;cursor:pointer;transition:border-color .15s,transform .15s,background .15s}
.sv-opt:hover{border-color:var(--accent);transform:translateX(3px)}
.sv-opt[aria-pressed="true"]{background:var(--soft);border-color:var(--accent)}
.sv-key{font-size:12px;font-weight:600;min-width:22px;height:22px;display:grid;place-items:center;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:#fff}
.sv-opt[aria-pressed="true"] .sv-key{background:var(--accent);color:#fff;border-color:var(--accent)}
.sv-matrix{display:grid;gap:16px}
.sv-rowlabel{font-weight:600;margin:0 0 8px}
.sv-pills{display:flex;flex-wrap:wrap;gap:8px}
.sv-pill{font-size:14px;background:var(--chip);border:1px solid var(--line);border-radius:999px;padding:6px 12px;cursor:pointer}
.sv-pill[aria-pressed="true"]{background:var(--accent);color:#fff;border-color:var(--accent)}
.sv-fields{display:grid;gap:14px}
.sv-field{display:grid;gap:6px}
.sv-field label{font-weight:600;font-size:14px}
.sv input[type=text],.sv input[type=email]{width:100%;font:inherit;color:var(--fg);background:var(--chip);border:1px solid var(--line);border-radius:8px;padding:11px 12px}
.sv-checks{display:grid;gap:10px;margin-top:18px}
.sv-check{display:flex;gap:10px;align-items:flex-start;cursor:pointer}
.sv-check input{margin-top:4px;accent-color:var(--accent)}
.sv-entry{margin-top:10px}
.sv-actions{display:flex;align-items:center;gap:12px;margin-top:22px;flex-wrap:wrap}
.sv-hint{font-size:13px;color:var(--muted)}
.sv-err{color:var(--err);font-size:14px;min-height:20px;margin-top:8px}

/* ---------- Concept 1: the 2,406 ---------- */
.c1-hero{position:relative;height:max(620px,calc(100vh - 150px));overflow:hidden}
.c1-hero canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.c1-cap{position:absolute;left:0;right:0;bottom:6%;display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;padding:0 20px;transition:opacity .35s}
.c1-cap.swap{opacity:0}
.c1-line{font-family:var(--display);font-weight:900;font-size:min(32px,5.4vw);line-height:1.2;white-space:nowrap}
.c1-sub{color:var(--muted);max-width:560px;font-size:15.5px}
.c1-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:6px}
.c1-panel{position:absolute;left:50%;top:50%;transform:translate(-50%,-46%);width:min(760px,calc(100% - 32px));max-height:calc(100% - 24px);overflow:auto;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:14px;padding:26px 30px;box-shadow:0 20px 60px rgba(24,28,37,.10);opacity:0;pointer-events:none;transition:opacity .45s,transform .45s}
.c1-panel.on{opacity:1;pointer-events:auto;transform:translate(-50%,-50%)}

.c1-seg{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff}
.c1-seg button{border:0;background:transparent;padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;border-right:1px solid var(--line)}
.c1-seg button:last-child{border-right:0}
.c1-seg button[aria-pressed="true"]{background:var(--fg);color:#fff}
.c1-tip{position:absolute;z-index:6;pointer-events:none;background:var(--fg);color:#fff;border-radius:8px;padding:8px 12px;display:flex;flex-direction:column;gap:2px;white-space:nowrap;font-size:13px;box-shadow:0 8px 24px rgba(24,28,37,.2)}
.c1-tip b{font-family:var(--display);font-weight:900;font-size:15px}
.c1-tip span{color:#c9d1cd}
.c1-tip i{font-style:normal;font-weight:700;color:#4fd3a0}
.c1-key{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--accent);margin-right:5px}
.c1-src{font-size:12.5px;color:var(--muted);margin-top:14px}
.dr-head{display:flex;flex-direction:column;gap:8px;padding:18px 0 6px}
.dr-head h1{font-family:var(--display);font-weight:900;font-size:min(42px,8vw);line-height:1.15;white-space:nowrap}
.dr-stage{position:relative;height:460px}
.dr-stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:pan-y}
.dr-cta{display:flex;flex-direction:column;align-items:center;text-align:center;margin-top:72px}
.dr-cta .btn-lg{font-size:18px;padding:15px 32px;border-radius:8px}
.dr-time{font-size:13.5px;margin-top:12px;white-space:nowrap}
.dr-h2{font-family:var(--display);font-weight:900;font-size:min(24px,4.3vw);white-space:nowrap;margin-top:96px}
.dr-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:22px}
.dr-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:8px;min-height:150px}
.dr-q{font-family:var(--display);font-weight:900;font-size:min(17px,4.85cqw);line-height:1.3;white-space:nowrap}
.dr-s{font-size:13.5px;color:var(--muted);margin-top:auto}
@media (max-width:900px){.dr-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:680px){.dr-stage{height:430px}.dr-card{min-height:150px!important}}
@media (max-width:480px){.dr-cards{grid-template-columns:minmax(0,1fr)}}
.dr-sub{font-size:18px;color:var(--fg);margin-top:4px;text-wrap:balance}
.dr-lead{text-align:center;margin:0 0 28px}
.dr-credit{font-size:min(14px,3.6vw);color:var(--muted);white-space:nowrap;text-align:center;margin-top:12px}
.dr-credit a{color:var(--muted);text-decoration:underline}
.dr-stage{margin-top:28px}
.dr-cta{margin-top:88px;margin-bottom:8px}
.dr-soon{font-family:var(--display);font-weight:900;font-size:20px;text-align:center;margin-top:72px;white-space:nowrap}
.dr-card{position:relative;container-type:inline-size;padding:0!important;border:0!important;background:transparent!important;min-height:170px!important;perspective:1200px;cursor:pointer;display:block!important}
.dr-face{position:absolute;inset:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:8px;backface-visibility:hidden;-webkit-backface-visibility:hidden;transition:transform .6s cubic-bezier(.2,.8,.2,1),border-color .2s,box-shadow .2s}
.dr-card:hover .dr-face{border-color:#b9c4bf;box-shadow:0 10px 30px rgba(24,28,37,.07)}
.dr-back{background:var(--fg);border-color:var(--fg);color:#fff;transform:rotateY(180deg)}
.dr-back .btn{margin-top:auto;align-self:flex-start}
.dr-card.flip .dr-face{transform:rotateY(180deg)}
.dr-card.flip .dr-back{transform:rotateY(360deg)}
.pm-carta{font-weight:800;font-size:17px;letter-spacing:-.02em;color:var(--fg)}
.pm-tsl{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);font-weight:900;color:var(--fg)}
.pm-tsl i{font-style:normal;font-size:9px;letter-spacing:.02em;background:var(--accent);color:#fff;width:24px;height:24px;border-radius:4px;display:grid;place-items:center}
.pm-x,.pm-dot{color:var(--muted)}
.pm-lab{display:block;font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
/* ---------- Concept 2: is it a co-invest? ---------- */
.c2-head{text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;padding:26px 0 8px}
.c2-head h1,.c3-head h1{font-family:var(--display);font-weight:900;font-size:min(44px,8vw);line-height:1.15;white-space:nowrap}
.c2-tally{display:flex;gap:8px;justify-content:center;margin-top:6px}
.c2-tally i{width:12px;height:12px;border-radius:50%;border:1.5px solid #c5cdc9;background:#fff;transition:all .3s}
.c2-tally i.hit{background:var(--accent);border-color:var(--accent)}
.c2-tally i.miss{background:var(--fg);border-color:var(--fg)}
.c2-arena{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 380px minmax(0,1fr);gap:24px;align-items:stretch;margin-top:22px;touch-action:pan-y}
.c2-zone{position:relative;border:1.5px dashed #c9d1cd;border-radius:14px;min-height:330px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:16px 10px;gap:4px;transition:background .15s,border-color .15s;background:rgba(255,255,255,.7)}
.c2-zone .zt{font-family:var(--display);font-weight:900;font-size:17px;white-space:nowrap}
.c2-zone .zk{font-size:12.5px;color:var(--muted);white-space:nowrap}
.c2-zone.yes .zt{color:var(--accent)}
.c2-zone.hot{background:var(--chip);border-color:var(--fg)}
.c2-zone.yes.hot{background:var(--soft);border-color:var(--accent)}
.c2-pile{position:absolute;inset:70px 10px 10px 10px}
.c2-mini{position:absolute;width:86px;height:112px;border-radius:8px;background:#fff;border:1.5px solid var(--fg);box-shadow:0 4px 12px rgba(24,28,37,.08);padding:8px;font-size:9.5px;line-height:1.3;font-weight:600;overflow:hidden;animation:c2drop .35s ease-out}
.c2-mini.is-yes{border-color:var(--accent);color:var(--accent)}
.c2-mini.wrong::after{content:"";position:absolute;right:6px;bottom:6px;width:8px;height:8px;border-radius:50%;background:var(--err)}
@keyframes c2drop{from{opacity:0;transform:scale(1.5)}to{opacity:1}}
.c2-stage{position:relative;height:330px}
.c2-card{position:absolute;inset:0;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 40px rgba(24,28,37,.10);padding:22px 22px 18px;display:flex;flex-direction:column;gap:14px;cursor:grab;user-select:none;touch-action:none;transition:transform .35s cubic-bezier(.2,.8,.2,1),opacity .35s;will-change:transform}
.c2-card.drag{transition:none;cursor:grabbing}
.c2-card .n{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.c2-card h3{font-family:var(--display);font-weight:900;font-size:21px;line-height:1.25;white-space:nowrap}
.c2-rows{display:grid;gap:0;margin-top:auto}
.c2-row{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-top:1px solid var(--line);font-size:14px;white-space:nowrap}
.c2-row span:first-child{color:var(--muted)}
.c2-row span:last-child{font-weight:600}
.c2-btns{display:flex;justify-content:center;gap:10px;margin-top:20px;flex-wrap:wrap}
.c2-verdict{min-height:64px;margin:18px auto 0;max-width:600px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px}
.c2-badge{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:13px;letter-spacing:.04em;text-transform:uppercase;padding:4px 10px;border-radius:4px;background:var(--fg);color:#fff;white-space:nowrap}
.c2-badge.yes{background:var(--accent)}
.c2-match{font-size:13px;color:var(--muted)}
.c2-result{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center}
.c2-result .big{font-family:var(--display);font-weight:900;font-size:76px;line-height:1;color:var(--accent);white-space:nowrap}
.c2-result .ln{font-family:var(--display);font-weight:900;font-size:19px;white-space:nowrap}
.c2-result .sb{color:var(--muted);font-size:15px;max-width:330px}
.c2-survey,.c3-survey{margin-top:40px;padding:26px 30px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 20px 60px rgba(24,28,37,.08)}

/* ---------- Concept 3: the four questions ---------- */
.c3-head{display:flex;flex-direction:column;gap:10px;padding:26px 0 4px}
.c3-head p{color:var(--muted);max-width:620px}
.c3-time{margin-top:22px;display:grid;gap:6px}
.c3-time input{width:100%;appearance:none;-webkit-appearance:none;height:26px;background:transparent;cursor:grab;margin:0}
.c3-time input::-webkit-slider-runnable-track{height:4px;border-radius:2px;background:linear-gradient(to right,var(--accent) var(--p,0%),var(--line) var(--p,0%))}
.c3-time input::-moz-range-track{height:4px;border-radius:2px;background:var(--line)}
.c3-time input::-moz-range-progress{height:4px;border-radius:2px;background:var(--accent)}
.c3-time input::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--accent);margin-top:-9px;box-shadow:0 2px 8px rgba(24,28,37,.18)}
.c3-time input::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--accent);box-shadow:0 2px 8px rgba(24,28,37,.18)}
.c3-ticks{display:flex;justify-content:space-between;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.c3-ticks span.on{color:var(--accent)}
.c3-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px;perspective:1600px}
.c3-tile{position:relative;height:270px;container-type:inline-size;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.2,.8,.2,1),opacity .5s;cursor:pointer;border-radius:14px}
.c3-tile.closed{transform:rotateX(-88deg);opacity:0}
.c3-tile.flip{transform:rotateY(180deg)}
.c3-face{position:absolute;inset:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:flex;flex-direction:column;gap:6px;backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.c3-tile:hover .c3-face{border-color:#b9c4bf;box-shadow:0 10px 30px rgba(24,28,37,.07)}
.c3-tile.live .c3-face{border-color:var(--accent)}
.c3-back{transform:rotateY(180deg);background:var(--fg);color:#fff;border-color:var(--fg);justify-content:space-between}
.c3-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.c3-num{font-family:var(--display);font-weight:900;font-size:14px;color:var(--accent)}
.c3-status{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.c3-status.pub{color:var(--accent)}
.c3-q{font-family:var(--display);font-weight:900;font-size:min(22px,4.5cqw);line-height:1.25;white-space:nowrap}
.c3-s{font-size:min(14px,3.4cqw);color:var(--muted);white-space:nowrap}
.c3-tile canvas{flex:1 1 0;height:0;width:100%;min-height:0;margin-top:8px}
.c3-back .c3-q{color:#fff}
.c3-back ul{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:8px;font-size:min(14.5px,3.5cqw)}
.c3-back li{padding-left:16px;position:relative;white-space:nowrap}
.c3-back li::before{content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;background:#4fd3a0}
.c3-back .lab{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#9fb0aa}
.c3-hint{margin-top:12px;font-size:13px;color:var(--muted)}

/* ---------- Concept 4: survey in the hero ---------- */
.c4-hero{position:relative;min-height:max(600px,calc(100vh - 150px));padding-bottom:30px}
.c4-hero>canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.c4-col{position:relative;z-index:2;max-width:680px;margin:0 auto;padding:18px 0 0}
.c4-kicker{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.c4-count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.c4-rail{height:26px;margin-top:6px}
.c4-body{background:rgba(255,255,255,.9);border-radius:12px;margin:0 -14px;padding:0 14px 8px}
.c4-body .sv-card h2{font-size:clamp(24px,4.6vw,38px)}
.c4-note{font-size:13.5px;color:var(--muted);margin-top:8px}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .c2-arena{grid-template-columns:minmax(0,1fr);justify-items:center}
  .c2-zone{display:none}
  .c2-stage{width:min(380px,100%)}
}
@media (max-width:680px){
  .wrap{padding:0 16px}
  .by{display:none}
  .wordmark{margin-right:auto}
  .c3-board{grid-template-columns:minmax(0,1fr)}
  .c3-tile{height:230px}
  .c1-panel,.c2-survey,.c3-survey{padding:18px 16px}
  .c2-card h3{font-size:18px}
  .c2-row{font-size:13px}
  .c3-ticks{font-size:10px;letter-spacing:.02em}
}
@media (prefers-reduced-motion:reduce){*{transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* Dedicated, full-page survey */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.survey-page{min-height:100svh;background:#fff}
.survey-header{max-width:1120px;margin:0 auto;padding:24px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.survey-header .wordmark{text-decoration:none}
.survey-exit{font-size:14px;color:var(--muted);text-decoration:none;white-space:nowrap}
.survey-exit:hover{color:var(--accent)}
.survey-shell{max-width:800px;margin:0 auto;padding:26px 32px 48px}
.survey-shell .sv{max-width:none}
.survey-shell .sv-top{padding:12px 0 18px;border-bottom:1px solid var(--line)}
.survey-shell .sv-card{padding:48px 0 0;min-height:calc(100svh - 236px);display:flex;flex-direction:column;justify-content:center}
.survey-shell .sv-card h2{font-size:clamp(24px,3vw,36px);line-height:1.32;text-wrap:pretty;margin:12px 0 20px}
.survey-shell .sv-help{font-size:17px;line-height:1.65}
.survey-shell .sv-opt{padding:13px 16px;min-height:50px}
.survey-shell .sv-actions{margin-top:26px}
@media(max-width:680px){
  .survey-header{padding:20px;gap:12px;flex-wrap:wrap}
  .survey-header .wordmark{font-size:16px}
  .survey-exit{font-size:12px}
  .survey-shell{padding:8px 20px 32px}
  .survey-shell .sv-card{padding-top:30px;min-height:calc(100svh - 200px)}
  .survey-shell .sv-help{font-size:16px}
  .survey-shell .sv-brand{font-size:10px}
  .survey-shell .sv-top{gap:10px}
  .survey-shell .sv-opt{padding:12px;gap:10px}
  .survey-shell .eyebrow{white-space:normal}
}