:root{
  --paper:#EEF1F5;
  --surface:#FFFFFF;
  --surface-2:#F7F9FB;
  --ink:#12151B;
  --muted:#5C6673;
  --rule:#D6DCE5;
  --rule-soft:#E6EAF0;
  --accent:#1F3FD1;
  --accent-soft:#E4E9FB;
  --marker:#F4E04D;
  --marker-ink:#12151B;
  --good:#1B7A55;
  --bad:#B3261E;
  --shadow:0 1px 0 rgba(18,21,27,.04), 0 12px 32px -18px rgba(18,21,27,.35);
  --f-display:"Bricolage Grotesque","Trebuchet MS",system-ui,sans-serif;
  --f-body:"Public Sans","Helvetica Neue",Arial,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;
}

/* ---------- live color preview (scoped to the build-sheet page root) ---------- */
#wrap{
  --preview-primary:#D8B4FE;
  --preview-secondary:#F9A8D4;
  --preview-accent:#7E22CE;
  --preview-cta-text:#242b38;
  --preview-accent-soft:color-mix(in srgb, var(--preview-accent) 55%, white);
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1280px;margin:0 auto;padding:28px 20px 120px}

/* ---------- masthead ---------- */
.masthead{
  border:1.5px solid var(--ink);
  background:var(--surface);
  border-radius:2px;
  box-shadow:var(--shadow);
  overflow:hidden;
  margin-bottom:26px;
}
.mast-top{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 18px;
  padding:9px 16px;
  border-bottom:1.5px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--f-mono);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
}
.mast-top .spacer{flex:1}
.mast-body{padding:26px 22px 22px;display:grid;gap:14px;grid-template-columns:minmax(0,1fr) auto;align-items:end}
.eyebrow{display:block;margin:0 0 8px;color:var(--preview-accent);font-size:12px;letter-spacing:.1em;text-transform:uppercase;font-weight:700}
.mast-body h1{
  font-family:var(--f-display);
  font-weight:800;
  font-size:clamp(30px,5vw,50px);
  line-height:1.02;
  letter-spacing:-.025em;
  margin:0;
  text-wrap:balance;
}
.hl{background:var(--marker);color:var(--marker-ink);padding:.02em .12em;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.deck{margin:10px 0 0;color:var(--muted);max-width:56ch;font-size:15.5px}
.deck-secondary{margin:8px 0 0;color:var(--muted);max-width:56ch;font-size:14px}
.mast-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-end}
@media (max-width:700px){.mast-body{grid-template-columns:minmax(0,1fr)}.mast-actions{align-items:flex-start;flex-direction:row;flex-wrap:wrap;gap:14px}}

/* ---------- progress ---------- */
.progress{display:flex;align-items:center;gap:10px;font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.bar{width:150px;height:8px;border:1.5px solid var(--ink);background:var(--surface-2);position:relative;overflow:hidden}
.bar i{display:block;height:100%;width:0%;background:var(--accent);transition:width .28s ease}

/* ---------- layout ---------- */
.cols{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:26px;align-items:start}
@media (max-width:960px){.cols{grid-template-columns:minmax(0,1fr)}}

/* ---------- sections ---------- */
.sheet-section{
  background:var(--surface);
  border:1.5px solid var(--ink);
  border-radius:2px;
  box-shadow:var(--shadow);
  margin-bottom:22px;
  overflow:hidden;
}
.sheet-section[hidden]{display:none}
.sec-head{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 14px;
  padding:16px 20px 14px;
  border-bottom:1.5px dashed var(--rule);
  background:var(--surface-2);
}
.sec-num{
  grid-row:1 / span 2;
  font-family:var(--f-mono);font-weight:600;font-size:13px;
  color:var(--surface);background:var(--ink);
  width:34px;height:34px;display:grid;place-items:center;border-radius:2px;
  align-self:start;
}
.sec-head h2{font-family:var(--f-display);font-weight:700;font-size:21px;letter-spacing:-.015em;margin:4px 0 0;line-height:1.15}
.sec-note{margin:2px 0 0;color:var(--muted);font-size:14px;max-width:60ch}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 18px;padding:20px}
@media (max-width:620px){.fields{grid-template-columns:minmax(0,1fr)}}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.wide{grid-column:1 / -1}
.field[hidden]{display:none}
.f-label{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-weight:600}
.f-hint{font-size:13px;color:var(--muted);margin:-2px 0 0}
.field.required > .f-label::after,.field.required > legend.f-label::after{content:' *';color:#b42318}
.field.is-invalid input,.field.is-invalid textarea,.field.is-invalid select,.field.is-invalid .chip span{border-color:#b42318}
.field.is-invalid input:focus,.field.is-invalid textarea:focus,.field.is-invalid select:focus{box-shadow:0 0 0 4px rgba(180,35,24,.12)}
.ai-field-btn{align-self:flex-start;padding:6px 10px;border:1px solid #dfc9f1;border-radius:999px;background:#faf5ff;color:var(--preview-accent);font-size:9.5px;letter-spacing:.06em}
.ai-field-btn:hover{background:#f3e8ff;border-color:var(--preview-accent-soft)}
.ai-field-btn[disabled]{opacity:.65}
input[type="text"],input[type="email"],input[type="number"],input[type="date"],textarea,select{
  font-family:var(--f-body);font-size:15px;color:var(--ink);
  background:var(--surface-2);
  border:1.5px solid var(--rule);
  border-radius:2px;
  padding:9px 11px;
  width:100%;
  transition:border-color .15s ease, box-shadow .15s ease;
}
textarea{min-height:78px;resize:vertical;line-height:1.5}
input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);
}
select{appearance:none;background-image:none;cursor:pointer}

/* ---------- chips ---------- */
fieldset{border:0;margin:0;padding:0;min-width:0}
fieldset legend{padding:0;margin-bottom:8px}
.legend-note{text-transform:none;letter-spacing:0;font-family:var(--f-body);font-weight:400}
.chip-row{display:flex;flex-wrap:wrap;gap:7px}
.chip{position:relative;display:inline-flex}
.chip input{position:absolute;inset:0;opacity:0;cursor:pointer;margin:0}
.chip span{
  display:inline-block;padding:8px 14px;
  border:1px solid var(--rule);border-radius:999px;
  background:#fff;color:var(--muted);
  font-size:14px;font-weight:500;line-height:1.35;
  transition:all .14s ease;cursor:pointer;
}
.chip input:checked + span{background:linear-gradient(90deg,var(--preview-primary),var(--preview-secondary));border-color:transparent;color:var(--preview-cta-text);font-weight:600}
.chip input:focus-visible + span{box-shadow:0 0 0 3px var(--accent-soft)}
.chip:hover span{border-color:var(--preview-accent-soft);background:#faf5ff}

/* ---------- swatches ---------- */
.swatches{display:flex;flex-wrap:wrap;gap:14px}
.sw{display:flex;flex-direction:column;gap:6px;align-items:center}
.sw input[type="color"]{width:60px;height:44px;padding:2px;border:1.5px solid var(--rule);border-radius:12px;background:#fff;cursor:pointer}
.sw small{font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.sw-hex{width:70px;padding:4px 6px;font-family:var(--f-mono);font-size:10.5px;text-align:center;text-transform:uppercase;border:1.5px solid var(--rule);border-radius:8px;background:#fff;color:var(--ink)}
.sw-hex.is-invalid{border-color:var(--bad);color:var(--bad)}
.color-hex-error{margin:2px 0 0;font-size:12px;color:var(--bad)}
.color-hex-error:empty{display:none}
.reset-colors-btn{align-self:flex-start;margin-top:2px}

/* ---------- output panel ---------- */
.panel{position:sticky;top:20px}
.panel-box{
  background:var(--surface);border:1.5px solid var(--ink);border-radius:2px;
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
}
.panel-head{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:11px 14px;border-bottom:1.5px solid var(--ink);
  background:var(--ink);color:var(--paper);
  font-family:var(--f-mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;
}
.panel-head .spacer{flex:1}
.out{
  margin:0;padding:16px;
  font-family:var(--f-mono);font-size:12.2px;line-height:1.62;
  white-space:pre-wrap;word-break:break-word;color:var(--ink);
  background:var(--surface-2);
  min-height:200px;
}
.ai-summary{padding:14px 16px;border-top:1px dashed var(--rule);background:var(--surface)}
.ai-summary-btn{width:100%}
.ai-summary-hint{margin:8px 0 0;font-size:12px;color:var(--muted);line-height:1.5}
.ai-summary-out{margin-top:12px}
.ai-summary-out:empty{display:none}
.ai-summary-out h4{margin:14px 0 4px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--preview-accent)}
.ai-summary-out h4:first-child{margin-top:0}
.ai-summary-out p{margin:0;font-size:13px;line-height:1.55;color:var(--ink)}
.ai-summary-out ul{margin:2px 0 0;padding-left:18px;font-size:13px;line-height:1.55;color:var(--ink)}
.ai-summary-out .ai-summary-error{color:var(--bad)}
.ai-summary-out .ai-summary-note{color:var(--muted);font-style:italic}
.next-steps{padding:14px 16px 4px;background:var(--surface)}
.next-steps-label{display:block;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--preview-accent);font-weight:700}
.next-steps-copy{margin:6px 0 0;font-size:12.5px;line-height:1.5;color:var(--muted)}
.next-steps-copy .ns-arrow{color:var(--preview-accent-soft);font-weight:700;margin:0 2px}
.panel-foot{display:flex;flex-direction:column;align-items:flex-start;gap:12px;flex-wrap:wrap;padding:14px 16px 16px;border-top:1.5px dashed var(--rule);background:var(--surface)}
.cta-primary{display:inline-flex;flex-direction:column;align-items:center;gap:6px}
.cta-sub{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.utility-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;width:100%;padding-top:10px;border-top:1px dashed var(--rule-soft)}

button{font-family:var(--f-mono);font-size:11px;letter-spacing:.11em;text-transform:uppercase;font-weight:600;cursor:pointer;border-radius:999px;transition:all .15s ease}
.btn{padding:10px 16px;border:1px solid #e2d7ec;background:#fff;color:var(--ink)}
.btn:hover{border-color:var(--preview-accent-soft);background:#faf5ff;color:var(--preview-accent)}
.btn-primary{padding:10px 18px;border:1px solid rgba(255,255,255,.7);background:linear-gradient(90deg,var(--preview-primary),var(--preview-secondary));color:var(--preview-cta-text);box-shadow:0 8px 22px rgba(192,132,252,.24)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(192,132,252,.34)}
.btn-text{padding:6px 4px;border:0;background:transparent;color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.btn-text:hover{color:var(--preview-accent)}
button:focus-visible{outline:none;box-shadow:0 0 0 3px var(--accent-soft)}
button[disabled]{opacity:.55;cursor:progress}
.saved{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);align-self:flex-start}
.saved.ok{color:var(--good)}

.footnote{margin:26px 2px 0;font-size:13.5px;color:var(--muted);max-width:70ch}
.footnote strong{color:var(--ink);font-weight:600}
.field-file-note{margin:0;padding:14px 20px 20px;font-size:13px;color:var(--muted);border-top:1px dashed var(--rule)}

.hp{position:absolute!important;left:-9999px;top:0;width:1px;height:1px;opacity:0;pointer-events:none}
.err{align-self:stretch;margin:2px 0 0;font-size:13px;line-height:1.45;color:var(--bad);font-family:var(--f-body)}
.err:empty{display:none}
.done{display:none;flex-direction:column;gap:14px;padding:34px 26px;background:#fff}
.panel-box.sent .out,.panel-box.sent .ai-summary,.panel-box.sent .panel-foot{display:none}
.panel-box.sent .done{display:flex}
.tick{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#a855f7,#ec4899);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:700;line-height:1}
.done h3{font-family:var(--f-display);font-weight:800;font-size:27px;letter-spacing:-.02em;margin:0;line-height:1.1}
.done p{margin:0;color:var(--muted);font-size:15px;max-width:44ch}
.done-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}

/* ---------- brief output typography ---------- */
.brief-output{white-space:normal;font-family:var(--f-body);font-size:14px;line-height:1.55}
.brief-output h2{margin:0 0 4px;font-size:20px;letter-spacing:-.025em}
.brief-output h3{margin:22px 0 8px;padding-top:14px;border-top:1px solid var(--rule);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--preview-accent)}
.brief-output p{margin:0}
.brief-output .brief-meta{color:var(--muted);font-size:12px}
.brief-output .brief-empty{margin-top:22px;color:var(--muted)}
.brief-output ul{display:grid;gap:7px;margin:0;padding:0;list-style:none}
.brief-output li{color:#4b5563;overflow-wrap:anywhere}
.brief-output li strong{color:var(--ink);font-weight:600}

/* ---------- LADD visual system ---------- */
body{
  min-height:100vh;
  background:
    radial-gradient(circle at 5% 4%,rgba(216,180,254,.24),transparent 30rem),
    radial-gradient(circle at 94% 38%,rgba(165,243,252,.2),transparent 32rem),
    var(--paper);
}
.wrap{max-width:1200px;padding-top:48px}
.masthead,.sheet-section,.panel-box{
  border:1px solid rgba(232,232,239,.95);
  border-radius:28px;
  box-shadow:var(--shadow);
}
.masthead{margin-bottom:32px}
.mast-top{
  border:0;
  border-bottom:1px solid var(--rule);
  background:linear-gradient(90deg,rgba(216,180,254,.44),rgba(249,168,212,.4),rgba(165,243,252,.4));
  color:var(--muted);
  font-size:10px;
  font-weight:700;
}
.mast-body{padding:42px 36px 38px}
.mast-body h1{font-size:clamp(2.55rem,5vw,4.25rem);letter-spacing:-.045em}
.hl{background:linear-gradient(90deg,#d8b4fe,var(--marker));border-radius:.28em;padding:.02em .18em}
.deck{font-size:17px;line-height:1.65}
.cols{gap:30px}
.sheet-section{margin-bottom:28px}
.sec-head{padding:22px 24px 18px;border-bottom:1px solid var(--rule);background:linear-gradient(135deg,#fcfaff,#f7fbff)}
.sec-num{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#a855f7,#ec4899);color:#fff}
.sec-head h2{font-size:23px;letter-spacing:-.035em}
.fields{padding:24px;gap:20px}
.f-label,.progress,.saved{
  letter-spacing:.06em;
  font-weight:700;
}
input[type="text"],input[type="email"],input[type="number"],input[type="date"],textarea,select{
  padding:13px 15px;
  border:1px solid #dfe3ea;
  border-radius:14px;
  background:#fff;
}
input:focus-visible,textarea:focus-visible,select:focus-visible{border-color:var(--preview-accent-soft);box-shadow:0 0 0 4px color-mix(in srgb, var(--preview-accent) 12%, transparent)}
.bar{height:9px;border:1px solid var(--rule);border-radius:999px;background:#fff}
.bar i{background:linear-gradient(90deg,#a855f7,#ec4899)}
.cols > .panel{padding:0;background:transparent;border:0;border-radius:0;box-shadow:none}
.panel-head{padding:15px 18px;border:0;border-bottom:1px solid var(--rule);background:linear-gradient(90deg,var(--preview-primary),var(--preview-secondary));color:var(--preview-cta-text)}
.out{padding:20px;background:#fcfaff}
.panel-foot{padding:16px 18px;border-top:1px solid var(--rule)}

@media (max-width:700px){.wrap{padding-top:22px}.mast-body{padding:30px 22px}.mast-actions{gap:16px}}

/* ---------- PDF download (utility action) ---------- */
.pdf-download-btn{width:auto;display:flex;align-items:center;gap:10px;padding:8px 12px;text-align:left}
.pdf-download-icon{width:18px;height:18px;flex:none;color:var(--preview-accent)}
.pdf-download-text{display:flex;flex-direction:column;gap:1px;min-width:0}
.pdf-download-title{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.11em;text-transform:uppercase;font-weight:700;color:var(--ink)}
.pdf-download-sub{display:block;font-family:var(--f-body);font-size:12px;letter-spacing:0;text-transform:none;font-weight:400;color:var(--muted)}