:root{
  --font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --sc-max-width:1280px;
  --body-bg:#f5f7fb;
  --content-bg:#fff;
  --text:#1f2937;
  --header-footer-bg:#111827;
  --header-footer-text:#fff;
  --main-button-bg:#111827;
  --main-button-text:#fff;
  --sub-button-bg:#e5e7eb;
  --sub-button-text:#1f2937;
  --question-bg:#eef2f7;
  --question-text:#1f2937;
  --answer-bg:#111827;
  --answer-text:#fff;
  --muted:#6b7280;
  --border:#e5e7eb;
  --field-border:#d1d5db;
  --soft-bg:#f8fafc;
  --danger:#b91c1c;
  --danger-border:#dc2626;
  --danger-bg:#fff7f7;
  --success:#166534;
  --success-border:#bbf7d0;
  --success-bg:#f0fdf4;
  --bg:var(--body-bg);
  --card:var(--content-bg);
  --brand:var(--main-button-bg);
  --answer:var(--answer-bg);
  --system-bg:var(--question-bg);
  --radius:6px;
  --panel-radius:0;
  --max-width:var(--sc-max-width);
  --sc-app-height:100dvh;
  --logo-height:40px;
  --logo-title-gap:8px
}
*{box-sizing:border-box}
html,body{height:100%;min-height:100%;font-family:var(--font-family)!important}
body{
  margin:0;
  background:var(--body-bg);
  color:var(--text);
  font-family:var(--font-family)!important;
  overflow:hidden
}
button,input,textarea,select{font:inherit;font-family:var(--font-family)!important}
button{cursor:pointer}
a{color:inherit}

/* dedicated product layout */
.sc-page{
  width:100%;
  height:var(--sc-app-height);
  min-height:var(--sc-app-height);
  display:flex;
  flex-direction:column;
  background:var(--body-bg);
  overflow:hidden
}
.sc-page,
.sc-page *{
  font-family:var(--font-family)!important
}
.sc-container{
  width:min(var(--sc-max-width),100%);
  margin:0 auto
}
.sc-app-header{
  flex:0 0 auto;
  position:sticky;
  top:0;
  z-index:100;
  background:var(--header-footer-bg);
  color:var(--header-footer-text);
  box-shadow:0 2px 10px rgba(15,23,42,.12)
}
.sc-header-container{
  position:relative;
  min-height:104px;
  display:grid;
  grid-template-columns:120px 1fr 120px;
  grid-template-areas:
    "left logo right"
    "left title right"
    "progress progress progress";
  align-items:center;
  gap:var(--logo-title-gap) 16px;
  padding:16px 24px 12px
}
.sc-logo-link{
  grid-area:logo;
  justify-self:center;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none
}
.sc-logo{
  display:block;
  width:auto;
  height:40px;
  max-width:220px;
  object-fit:contain
}
.sc-page-title{
  grid-area:title;
  justify-self:center;
  align-self:start;
  padding-top:0;
  color:var(--header-footer-text);
  font-size:18px;
  font-weight:700;
  line-height:1.25;
  text-align:center;
  white-space:nowrap;
  pointer-events:none
}
.sc-home-button{
  grid-area:right;
  justify-self:end;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:var(--home-button-size);
  height:var(--home-button-size);
  min-width:var(--home-button-size);
  min-height:var(--home-button-size);
  padding:0;
  border:1px solid color-mix(in srgb,var(--header-footer-text) 48%,transparent);
  border-radius:50%;
  color:var(--header-footer-text);
  background:transparent;
  text-decoration:none;
  overflow:hidden
}
.sc-home-icon{
  display:block;
  width:58%;
  height:58%;
  object-fit:contain
}
.sc-main{
  flex:1 1 auto;
  min-height:0;
  overflow:hidden
}
.sc-main-container{
  height:100%;
  min-height:0;
  background:var(--content-bg)
}
.sc-main-section{
  height:100%;
  min-height:0;
  background:var(--content-bg)
}
.sc-card-body{
  height:100%;
  min-height:0;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  padding:22px 28px
}
.sc-app-footer{
  flex:0 0 auto;
  background:var(--header-footer-bg);
  color:var(--header-footer-text)
}
.sc-footer-container{
  min-height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:12px 24px;
  text-align:center;
  font-size:13px;
  line-height:1.5
}

/* chat */
.sc-chat{
  flex:1 1 auto;
  min-height:0;
  display:flex;
  flex-direction:column;
  gap:10px;
  overflow:auto;
  padding:2px 6px 8px;
  -webkit-overflow-scrolling:touch;
  overscroll-behavior:contain
}
.bubble{
  max-width:95%;
  padding:10px 12px;
  border-radius:var(--radius);
  line-height:1.55;
  white-space:pre-wrap
}
.bubble.system{
  align-self:flex-start;
  background:var(--question-bg);
  color:var(--question-text)
}
.bubble.answer{
  align-self:flex-end;
  background:var(--answer-bg);
  color:var(--answer-text)
}
.back-btn{
  margin-top:8px;
  border:0;
  border-radius:var(--radius);
  background:rgba(255,255,255,.2);
  color:inherit;
  padding:5px 10px
}

/* progress in fixed header */
.sc-progress{
  grid-area:progress;
  width:100%;
  color:color-mix(in srgb,var(--header-footer-text) 84%,transparent);
  font-size:13px;
  line-height:1.3
}
.sc-progress div{
  height:7px;
  margin-top:5px;
  background:color-mix(in srgb,var(--header-footer-text) 20%,transparent);
  border-radius:999px;
  overflow:hidden
}
.sc-progress b{
  display:block;
  width:0;
  height:100%;
  background:var(--header-footer-text);
  transition:width .2s
}

/* input host */
.bubble.input-host{
  align-self:stretch;
  width:100%;
  max-width:100%;
  background:var(--content-bg);
  border:1px solid var(--border);
  box-shadow:none;
  padding:10px 12px;
  height:auto;
  min-height:0;
  max-height:none;
  overflow:visible;
  white-space:normal;
  display:block;
  flex:0 0 auto
}
.sc-input{display:none}
.sc-input.is-inline,
.sc-input.is-choice-compact,
.sc-input.is-inline-compact{
  display:block;
  width:100%;
  height:auto;
  min-height:0;
  max-height:none;
  margin:0;
  padding:0;
  border-top:0;
  overflow:visible
}
#inputArea.is-compact-area,
#inputArea.is-choice-area{
  display:flex;
  align-items:flex-start;
  align-content:flex-start;
  justify-content:flex-start;
  gap:8px;
  width:100%;
  height:auto;
  min-height:0;
  max-height:none;
  margin:0;
  padding:0;
  overflow:visible
}
#inputArea.is-compact-area{flex-direction:column;flex-wrap:nowrap;line-height:1.2}
#inputArea.is-choice-area{flex-wrap:wrap;line-height:1}
#inputArea.is-compact-area input,
#inputArea.is-compact-area select{display:block;width:100%;margin:0}
.sc-input input,
.sc-input textarea,
.sc-input select{
  width:100%;
  border:1px solid var(--field-border);
  border-radius:var(--radius);
  padding:10px 12px;
  font-size:16px;
  color:var(--text);
  background:var(--content-bg)
}
.sc-input textarea{min-height:96px}
.sc-input button,
.choice{
  border:0;
  border-radius:var(--radius);
  background:var(--main-button-bg);
  color:var(--main-button-text);
  padding:10px 12px;
  margin-top:8px
}
#inputArea.is-compact-area button,
#inputArea.is-choice-area button{margin:0}
#inputArea.is-compact-area .answer-confirm-btn{align-self:flex-end}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.choices.choices-compact,
.bubble.input-host.input-type-select .choices{
  height:auto;
  min-height:0;
  max-height:none;
  margin:0;
  padding:0;
  overflow:visible;
  line-height:1;
  display:flex;
  align-items:flex-start;
  align-content:flex-start;
  justify-content:flex-start;
  flex-wrap:wrap;
  gap:8px
}
.choice,
.choices.choices-compact .choice,
.bubble.input-host.input-type-select .choice{margin:0;flex:0 0 auto;line-height:1.2}

/* completion */
.completion-panel{
  margin:24px 0 8px;
  padding:22px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--soft-bg);
  color:var(--text)
}
.completion-title{font-size:20px;font-weight:700;margin-bottom:8px}
.completion-body{line-height:1.7}
.completion-home-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:18px;
  min-height:42px;
  padding:10px 18px;
  border-radius:var(--radius);
  background:var(--main-button-bg);
  color:var(--main-button-text);
  text-decoration:none;
  font-weight:700
}

/* confirmation */
.confirm-panel{border:1px solid var(--border);border-radius:var(--radius);background:var(--content-bg);padding:16px}
.confirm-title{font-size:18px;font-weight:700;margin-bottom:6px}
.confirm-note{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.7}
.confirm-list{display:grid;gap:10px}
.confirm-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--soft-bg)}
.confirm-row-body{min-width:0;flex:1}
.confirm-label{color:var(--muted);font-size:13px;margin-bottom:4px}
.confirm-value{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65}
.confirm-edit-btn{flex:0 0 auto;border:1px solid var(--field-border);border-radius:var(--radius);background:var(--sub-button-bg);color:var(--sub-button-text);padding:8px 12px;margin-top:0}
.confirm-actions{margin-top:16px;text-align:right}
.confirm-next-btn{min-width:min(100%,260px)}

/* attachment */
.attachment-panel{width:100%;background:var(--content-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.attachment-help{margin:0 0 12px;color:var(--muted);font-size:14px;line-height:1.7}
.attachment-input{width:100%;border:1px dashed var(--field-border);border-radius:var(--radius);background:var(--soft-bg);padding:14px}
.attachment-selected{margin-top:10px;white-space:pre-wrap;color:var(--text);font-size:14px;line-height:1.7}
.attachment-uploaded-list{margin-top:12px}
.attachment-uploaded-title{font-weight:700;font-size:13px;color:var(--text);margin-bottom:6px}
.attachment-uploaded-item{border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;margin-top:6px;background:var(--soft-bg);font-size:14px}
.attachment-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;margin-top:16px}
.secondary-btn{background:var(--sub-button-bg)!important;color:var(--sub-button-text)!important;border:1px solid var(--field-border)!important}

/* validation and notices */
.input-error{border-color:var(--danger-border)!important;background:var(--danger-bg)!important}
.sc-field-error{width:100%;margin:6px 0 2px;color:var(--danger);font-size:13px;line-height:1.6;white-space:pre-wrap}
.sc-field-notice{width:100%;margin:0 0 10px;color:var(--success);background:var(--success-bg);border:1px solid var(--success-border);border-radius:var(--radius);padding:8px 10px;font-size:13px;line-height:1.6}

/* verification */
.verification-area{width:100%}
.verification-help{margin:0 0 10px;color:var(--muted);font-size:14px;line-height:1.7}
.verification-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:10px}
.verification-actions button{margin-top:0}

/* agreement */
.sc-page-agreement{overflow:auto;height:auto;min-height:100dvh}
.sc-page-agreement body{overflow:auto}
.sc-page-agreement .sc-main{
  flex:1 1 auto;
  overflow:visible;
  background:var(--body-bg);
  display:flex;
  justify-content:center
}
.sc-page-agreement .sc-main-container{
  flex:0 1 var(--sc-max-width);
  width:min(var(--sc-max-width),100%);
  max-width:var(--sc-max-width);
  align-self:stretch;
  min-height:100%;
  height:auto;
  display:flex;
  background:var(--content-bg)
}
.sc-page-agreement .sc-main-section{flex:1 1 auto;min-width:0;min-height:100%;height:auto;display:flex;background:var(--content-bg)}
.sc-page-agreement .agreement-card-body.sc-card-body{flex:1 1 auto}
.agreement-card-body.sc-card-body{display:block;overflow:visible;padding:28px 32px}
.agreement-title{margin:0;font-size:24px;line-height:1.35;color:var(--text)}
.agreement-lead{margin:8px 0 0;color:var(--muted);line-height:1.8}
.agreement-content{margin-top:22px}
.agreement-section+.agreement-section{margin-top:18px}
.agreement-section h2{margin:0 0 8px;font-size:16px;color:var(--text)}
.agreement-section ul{margin:0;padding-left:1.3em;color:var(--text);line-height:1.8}
.agreement-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:22px;padding-top:18px;border-top:1px solid var(--border)}
.agreement-actions form{margin:0}
.agreement-button{border:0;border-radius:var(--radius);padding:12px 22px;font-weight:700;font-size:15px}
.agreement-button.primary{background:var(--main-button-bg);color:var(--main-button-text)}
.agreement-button.secondary{background:var(--sub-button-bg);color:var(--sub-button-text)}

/* generic option inputs */
.checkbox-group{width:100%;display:grid;gap:8px}
.checkbox-option{display:flex;align-items:center;gap:8px;width:100%;border:1px solid var(--border);border-radius:var(--radius);background:var(--soft-bg);padding:9px 10px;line-height:1.5}
.checkbox-option input{width:auto;flex:0 0 auto}

@media (max-width:720px){
  body{position:fixed;inset:0;width:100%;height:var(--sc-app-height);min-height:var(--sc-app-height);max-height:var(--sc-app-height);overflow:hidden}
  .sc-page-agreement{position:fixed;inset:0;overflow:auto}
  .sc-header-container{
    min-height:112px;
    grid-template-columns:74px 1fr 74px;
    gap:6px 10px;
    padding:12px 14px 10px
  }
  .sc-logo{height:min(var(--logo-height),30px);max-width:172px}
  .sc-page-title{font-size:16px;padding-top:0}
  .sc-home-button{width:var(--home-button-size);height:var(--home-button-size);min-width:var(--home-button-size);min-height:var(--home-button-size);padding:0}
  .sc-card-body{padding:12px 14px}
  .sc-chat{gap:8px;padding:2px 2px 6px}
  .bubble{padding:9px 10px}
  .bubble.input-host{padding:9px}
  .sc-input textarea{min-height:88px}
  .sc-input button,.choice{padding:9px 10px}
  .confirm-row{display:block}
  .confirm-edit-btn{margin-top:10px}
  .confirm-actions{text-align:left}
  .confirm-next-btn{width:100%}
  .attachment-actions,.verification-actions{display:block}
  .attachment-actions button,.verification-actions button{width:100%;margin-top:8px}
  .agreement-card-body.sc-card-body{padding:20px 16px}
  .agreement-actions{flex-direction:column-reverse}
  .agreement-button,.agreement-actions form{width:100%}
  .sc-footer-container{min-height:40px;font-size:12px;padding:10px 12px}
}