:root{
  --pink:#FF3D8B; --pink-deep:#D62770; --blue:#8FD9F5; --blue-deep:#1B7FA8;
  --ink:#141220; --ink-2:#3A3648; --ink-3:#6B6879; --ink-4:#9A97A8;
  --cream:#FFF7F2; --paper:#FFFFFF; --line:rgba(20,18,32,.12); --line-2:rgba(20,18,32,.07);
  --lilac:#C9B8FF; --radius:12px; --maxw:560px; --maxw-wide:1120px; --maxw-read:660px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--cream); color:var(--ink);
  font-size:16px; line-height:1.55; -webkit-font-smoothing:antialiased;
  padding-bottom:64px;
}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.82em;letter-spacing:-.02em}
.muted{color:var(--ink-3)}

/* ---------- chrome ---------- */
.topbar{
  position:sticky; top:0; z-index:20; display:flex; align-items:center; justify-content:space-between;
  padding:14px 20px; background:rgba(255,247,242,.92); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-2);
}
.brand{
  background:none; border:0; cursor:pointer; font-family:inherit;
  font-size:19px; font-weight:700; letter-spacing:-.045em; color:var(--ink); padding:0;
}
.brand-why{color:var(--pink)}
.ghost-btn{
  background:none;border:0;font-family:inherit;font-size:14px;color:var(--ink-3);
  cursor:pointer;padding:6px 2px;
}
.ghost-btn:hover{color:var(--ink)}

#app{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.screen{display:none;padding:24px 0 40px}
.screen.active{display:block;animation:rise .32s cubic-bezier(.2,.7,.3,1)}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.screen.active{animation:none}*{transition:none!important}}

h1{font-size:34px;line-height:1.1;letter-spacing:-.035em;font-weight:700;text-wrap:balance}
h2{font-size:25px;line-height:1.15;letter-spacing:-.03em;font-weight:700;margin-bottom:6px}
h3{font-size:16px;font-weight:600;letter-spacing:-.015em}
.eyebrow{
  font-family:'JetBrains Mono',monospace;font-size:11px;text-transform:uppercase;
  letter-spacing:.13em;color:var(--pink-deep);margin-bottom:12px;
}
.lede{color:var(--ink-2);font-size:16px;margin-top:14px;max-width:44ch}
.lede.sm{font-size:14px;margin-bottom:18px}
.back{
  background:none;border:0;font-family:inherit;font-size:14px;color:var(--ink-3);
  cursor:pointer;padding:0 0 16px;display:block;
}
.back:hover{color:var(--pink-deep)}
.back::before{content:"← "}

/* ---------- hero ---------- */
.hero{padding:28px 0 8px}
.hero h1 .l2{color:var(--blue-deep)}
.hero-actions{display:flex;flex-direction:column;gap:10px;margin-top:26px}
.hero-note{font-size:13px;color:var(--ink-4);margin-top:14px;text-align:center}
.proof-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:34px;
  padding-top:22px;border-top:1px solid var(--line-2);
}
.proof-strip div{text-align:center}
.proof-strip .num{
  display:block;font-family:'JetBrains Mono',monospace;font-size:22px;
  font-weight:500;color:var(--ink);letter-spacing:-.03em;
}
.proof-strip .lbl{display:block;font-size:12px;color:var(--ink-3);margin-top:2px}

/* ---------- buttons ---------- */
.btn{
  font-family:inherit;font-size:15px;font-weight:600;letter-spacing:-.01em;
  padding:14px 22px;border-radius:var(--radius);border:1px solid transparent;
  cursor:pointer;transition:transform .12s,background .16s,box-shadow .16s;
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--pink);color:#fff;box-shadow:0 1px 0 rgba(20,18,32,.06)}
.btn-primary:hover{background:var(--pink-deep)}
.btn-primary:disabled{background:var(--ink-4);cursor:not-allowed}
.btn-quiet{background:var(--paper);color:var(--ink);border-color:var(--line)}
.btn-quiet:hover{border-color:var(--ink-3)}
.btn-block{width:100%;display:block}
.btn-sm{font-size:13px;padding:9px 14px}
:focus-visible{outline:2.5px solid var(--pink);outline-offset:2px;border-radius:6px}

/* ---------- form ---------- */
.field{display:block;margin-bottom:26px}
.field-label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field-hint{display:block;font-size:12.5px;color:var(--ink-4);margin-top:6px}
input[type=text],textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 13px;
}
input[type=text]::placeholder,textarea::placeholder{color:var(--ink-4)}
input[type=text]:focus,textarea:focus{border-color:var(--pink);outline:none;box-shadow:0 0 0 3px rgba(255,61,139,.13)}
textarea{resize:vertical;min-height:62px;font-size:14px;margin-top:7px}

.links-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:9px}
.count-pill{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--ink-3)}
.link-row{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:11px 12px;margin-bottom:9px}
.link-row.filled{border-color:var(--blue)}
.link-row.bad{border-color:var(--pink)}
.link-top{display:flex;gap:9px;align-items:center}
.link-top input{border:0;padding:2px 0;background:none;flex:1}
.link-top input:focus{box-shadow:none}
.link-idx{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--ink-4);min-width:14px}
.rm{background:none;border:0;color:var(--ink-4);cursor:pointer;font-size:17px;line-height:1;padding:2px 4px}
.rm:hover{color:var(--pink)}
.link-status{font-size:12px;margin-top:6px}
.link-status.ok{color:var(--blue-deep)}
.link-status.warn{color:var(--pink-deep)}

.advanced{margin:22px 0;border-top:1px solid var(--line-2);padding-top:16px}
.advanced summary{font-size:13.5px;color:var(--ink-2);cursor:pointer;font-weight:500}
.advanced p{font-size:13px;color:var(--ink-3);margin-top:9px;line-height:1.6}
.error{color:var(--pink-deep);font-size:13.5px;margin:12px 0}

/* ---------- loading ---------- */
.loading-wrap{padding:52px 0}
.steps{list-style:none;margin:26px 0 28px}
.steps li{
  display:flex;gap:11px;align-items:flex-start;padding:8px 0;font-size:14.5px;
  color:var(--ink-4);transition:color .3s;
}
.steps li .dot{
  width:16px;height:16px;border-radius:50%;border:2px solid var(--line);flex:0 0 16px;margin-top:3px;
  transition:all .3s;
}
.steps li.now{color:var(--ink)}
.steps li.now .dot{border-color:var(--pink);background:var(--pink);animation:pulse 1.1s infinite}
.steps li.done{color:var(--ink-2)}
.steps li.done .dot{border-color:var(--blue);background:var(--blue)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,61,139,.4)}50%{box-shadow:0 0 0 6px rgba(255,61,139,0)}}
.bar{height:5px;background:rgba(20,18,32,.09);border-radius:99px;overflow:hidden}
.bar-fill{height:100%;width:0;background:var(--pink);border-radius:99px;transition:width .45s cubic-bezier(.3,.8,.4,1)}
#eta{margin-top:10px;font-size:12.5px}

/* ---------- findings ---------- */
.result-head{margin-bottom:20px}
.confidence{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:500;
  padding:5px 11px;border-radius:99px;margin-top:10px;
}
.confidence.high{background:rgba(143,217,245,.34);color:#0F5B78}
.confidence.medium{background:rgba(201,184,255,.36);color:#4B34A8}
.confidence.low{background:rgba(255,61,139,.13);color:var(--pink-deep)}

.finding{
  background:var(--paper);border:1px solid var(--line-2);border-left:3px solid var(--pink);
  border-radius:0 var(--radius) var(--radius) 0;padding:14px 15px;margin-bottom:9px;
}
.finding.medium{border-left-color:var(--blue)}
.finding-top{display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.finding h3{font-size:15.5px;line-height:1.35}
.finding .score{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--ink-3);white-space:nowrap}
.finding .why{font-size:13.5px;color:var(--ink-2);margin-top:7px;line-height:1.6}
.finding .lift{
  display:inline-block;font-family:'JetBrains Mono',monospace;font-size:11px;
  background:rgba(20,18,32,.05);color:var(--ink-2);padding:2px 7px;border-radius:5px;margin-top:9px;
}
.finding .eg{font-size:12.5px;color:var(--ink-4);margin-top:8px;font-style:italic}

.panel{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--radius);padding:15px;margin:18px 0}
.panel h3{margin-bottom:10px}
.tag{
  display:inline-block;font-family:'JetBrains Mono',monospace;font-size:12px;
  background:rgba(143,217,245,.28);color:#0F5B78;padding:4px 9px;border-radius:6px;margin:0 5px 5px 0;
}
.tag.word{background:rgba(201,184,255,.3);color:#4B34A8}
.panel .sub{font-size:12.5px;color:var(--ink-4);margin-bottom:8px}

.empty{background:var(--paper);border:1px dashed var(--line);border-radius:var(--radius);padding:20px;text-align:center}
.empty p{font-size:13.5px;color:var(--ink-3);margin:9px 0 14px;line-height:1.6}
.caveat{font-size:12.5px;color:var(--ink-4);line-height:1.6;margin-top:24px;padding-top:16px;border-top:1px solid var(--line-2)}

/* ---------- stepper ---------- */
.script-cta{margin-top:26px}
.stepper{
  display:flex;align-items:center;justify-content:space-between;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:7px 9px;margin-bottom:10px;
}
.step-btn{
  width:40px;height:40px;border-radius:9px;border:1px solid var(--line);background:var(--cream);
  font-size:21px;line-height:1;color:var(--ink);cursor:pointer;font-family:inherit;
}
.step-btn:hover:not(:disabled){border-color:var(--pink);color:var(--pink)}
.step-btn:disabled{opacity:.32;cursor:not-allowed}
.step-val{text-align:center}
.step-val .mono{font-size:19px;font-weight:500;display:block}
.step-lbl{font-size:11.5px;color:var(--ink-3)}

/* ---------- scripts ---------- */
.script{background:var(--paper);border:1px solid var(--line-2);border-radius:var(--radius);padding:16px;margin-bottom:14px}
.script-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:12px}
.script-angle{
  font-family:'JetBrains Mono',monospace;font-size:10.5px;text-transform:uppercase;
  letter-spacing:.1em;color:var(--pink-deep);
}
.copy-btn{
  background:var(--cream);border:1px solid var(--line);border-radius:7px;font-family:inherit;
  font-size:12px;padding:5px 10px;cursor:pointer;color:var(--ink-2);white-space:nowrap;
}
.copy-btn:hover{border-color:var(--ink-3)}
.script-hook{
  font-size:17px;font-weight:600;line-height:1.35;letter-spacing:-.02em;
  padding:12px 13px;background:rgba(255,61,139,.06);border-radius:9px;margin-bottom:14px;
}
.beat{display:grid;grid-template-columns:74px 1fr;gap:10px;padding:9px 0;border-top:1px solid var(--line-2)}
.beat-t{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--ink-4);padding-top:2px}
.beat-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--blue-deep);margin-bottom:3px}
.beat-line{font-size:14.5px;line-height:1.5}
.beat-shot{font-size:12.5px;color:var(--ink-3);margin-top:4px;line-height:1.5}
.script-meta{margin-top:14px;padding-top:12px;border-top:1px solid var(--line-2)}
.meta-row{margin-bottom:11px}
.meta-k{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-4);margin-bottom:4px}
.meta-v{font-size:13.5px;color:var(--ink-2);line-height:1.55;white-space:pre-wrap}
.must li{font-size:13.5px;margin-left:17px;line-height:1.6}

/* ---------- history ---------- */
.hist{
  background:var(--paper);border:1px solid var(--line-2);border-radius:var(--radius);
  padding:14px;margin-bottom:9px;cursor:pointer;width:100%;text-align:left;font-family:inherit;
}
.hist:hover{border-color:var(--blue)}
.hist-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.hist h3{font-size:15.5px}
.hist .when{font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--ink-4);white-space:nowrap}
.hist .sum{font-size:13px;color:var(--ink-3);margin-top:5px}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);
  background:var(--ink);color:#fff;font-size:13.5px;padding:11px 18px;border-radius:99px;
  opacity:0;pointer-events:none;transition:all .26s;z-index:60;
}
.toast.show{opacity:1;transform:translate(-50%,0)}



/* ---------- baseline provenance ---------- */
.baseline{
  display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;
  padding:11px 13px;border-radius:var(--radius);margin-bottom:14px;
}
.baseline.measured{background:rgba(143,217,245,.26)}
.baseline.estimated{background:rgba(20,18,32,.045)}
.baseline-k{
  font-family:'JetBrains Mono',monospace;font-size:10.5px;text-transform:uppercase;
  letter-spacing:.1em;font-weight:500;
}
.baseline.measured .baseline-k{color:#0F5B78}
.baseline.estimated .baseline-k{color:var(--ink-3)}
.baseline-v{font-size:13px;color:var(--ink-2);flex:1;min-width:190px;line-height:1.5}

/* ---------- engagement metrics ---------- */
.metric{margin-bottom:14px}
.metric:last-child{margin-bottom:0}
.metric-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:5px}
.metric-label{font-size:14px;font-weight:500}
.metric-mult{font-family:'JetBrains Mono',monospace;font-size:15px;color:var(--pink-deep)}
.metric-bar{height:6px;background:rgba(20,18,32,.07);border-radius:99px;overflow:hidden}
.metric-fill{height:100%;background:var(--pink);border-radius:99px}
.metric-note{font-size:12.5px;color:var(--ink-3);margin-top:5px;line-height:1.5}

/* Hero art is decorative — hidden on small screens rather than squeezed.
   Must sit BEFORE the breakpoint: media queries add no specificity. */
.hero-art{display:none}

/* ================= desktop ================= */
@media (min-width:760px){
  body{font-size:17px;padding-bottom:96px}
  .topbar{padding:18px 40px}
  .brand{font-size:22px}
  .ghost-btn{font-size:15px}

  #app{max-width:var(--maxw-wide);padding:0 40px}
  .screen{padding:44px 0 72px}

  /* Forms stay in a narrow reading column; wide inputs are harder to scan. */
  #screen-input,#screen-loading{max-width:var(--maxw-read)}

  h1{font-size:clamp(38px,3.05vw,46px);line-height:1.08;letter-spacing:-.035em}
  h2{font-size:34px}
  h3{font-size:17px}
  .lede{font-size:18px;line-height:1.6;max-width:46ch}
  .eyebrow{font-size:12px}
  .back{font-size:15px;padding-bottom:22px}

  /* ---- hero ---- */
  .hero{
    display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:64px;align-items:center;padding:40px 0 24px;
  }
  .hero-art{display:block}
  .hero-art svg{width:100%;height:auto;max-height:460px}
  .hero-actions{flex-direction:row;margin-top:34px}
  .hero-actions .btn{flex:0 0 auto;padding:16px 30px;font-size:16px}
  .hero-note{text-align:left;margin-top:18px;font-size:14px}

  .proof-strip{
    margin-top:56px;padding-top:32px;
    grid-template-columns:repeat(3,minmax(0,220px));gap:48px;justify-content:start;
  }
  .proof-strip div{text-align:left}
  .proof-strip .num{font-size:34px}
  .proof-strip .lbl{font-size:13.5px;margin-top:4px}

  /* ---- input ---- */
  .field-label{font-size:14px}
  input[type=text],textarea{font-size:16px;padding:14px 15px}
  .link-row{padding:14px 15px}
  .btn{font-size:16px;padding:15px 26px}
  .btn-sm{font-size:14px;padding:10px 16px}

  /* ---- results: two columns, findings lead ---- */
  #screen-result{max-width:var(--maxw-wide)}
  .result-head{margin-bottom:26px}
  .result-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:28px;align-items:start}
  .result-side{position:sticky;top:92px;display:flex;flex-direction:column;gap:16px}
  .finding{padding:18px 20px}
  .finding h3{font-size:17px}
  .finding .why{font-size:14.5px}
  .panel{padding:20px}
  .baseline{padding:14px 16px}
  .baseline-v{font-size:14px}
  .script-cta{margin-top:0}
  .caveat{font-size:13px;margin-top:32px}

  /* ---- scripts ---- */
  #screen-scripts{max-width:920px}
  .script{padding:24px 26px;margin-bottom:20px}
  .script-hook{font-size:21px;padding:16px 18px}
  .beat{grid-template-columns:96px 1fr;gap:16px;padding:12px 0}
  .beat-line{font-size:15.5px}
  .beat-shot{font-size:13.5px}
  .script-meta{margin-top:18px;padding-top:16px}

  /* ---- history ---- */
  #history-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
  .hist{margin-bottom:0;padding:18px}
}

@media (min-width:1180px){
  .hero{gap:88px;padding:56px 0 32px}
  .findings-col{display:grid;grid-template-columns:1fr;gap:10px}
}

/* ---- hero animation ---- */
.art-card,.art-node{opacity:0;animation:artIn .7s cubic-bezier(.2,.7,.3,1) forwards}
.art-card-1{animation-delay:.05s}
.art-card-2{animation-delay:.18s}
.art-card-3{animation-delay:.31s}
.art-lines{opacity:0;animation:artFade .8s ease forwards;animation-delay:.5s}
.art-node{animation-delay:.66s}
@keyframes artIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes artFade{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .art-card,.art-node,.art-lines{opacity:1;animation:none;transform:none}
}

/* ---------- boot failure notice ---------- */
.boot-error{
  background:var(--ink);color:#fff;font-size:14px;line-height:1.6;
  padding:16px 20px;text-align:center;
}
.boot-error strong{color:var(--blue)}
.boot-error code{
  font-family:'JetBrains Mono',monospace;font-size:13px;
  background:rgba(255,255,255,.14);padding:2px 6px;border-radius:5px;
}