:root{
  --paper:#f4f1ea;--paper-deep:#e9e4da;--carbon:#211f1c;--carbon-soft:#4f4b45;
  --slate:#77736c;--hairline:#d9d2c7;--oxide:#c8522f;--oxide-soft:#f1d8cf;
  --verified:#39715a;--verified-soft:#dce9e2;--white:#fffdf8;--shadow:rgba(49,42,34,.12);
}
*{box-sizing:border-box}
html{background:var(--paper)}
html,body{margin:0;color:var(--carbon);font-family:"Inter",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(244,241,234,.97),rgba(244,241,234,.83)),url("engraving-bg-v2.png") center/cover no-repeat}
a{color:inherit}
button,input,select{font:inherit}
button{color:inherit}
:focus{outline:none}
:focus-visible{outline:3px solid color-mix(in srgb,var(--oxide) 70%,white);outline-offset:3px}
.hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;z-index:100;background:var(--carbon);color:var(--paper);padding:10px 16px}
.skip-link:focus{left:0}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace}
.nav{height:64px;border-bottom:1px solid var(--hairline);background:rgba(244,241,234,.9);backdrop-filter:blur(12px);position:sticky;top:0;z-index:20}
.nav-inner{height:100%;max-width:1440px;margin:auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}.brand img{width:23px;height:23px}.brand-word{font:italic 22px "Instrument Serif",serif}
.nav-meta{display:flex;align-items:center;gap:18px;color:var(--slate);font-size:13px}.nav-meta a{text-decoration:none}.nav-meta a:hover{color:var(--carbon)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;border:1px solid var(--hairline);border-radius:5px;padding:9px 14px;background:var(--white);cursor:pointer;text-decoration:none;font-size:13px;font-weight:650;transition:transform .15s,border-color .15s,background .15s}
.button:hover{border-color:var(--carbon);transform:translateY(-1px)}.button.primary{background:var(--carbon);border-color:var(--carbon);color:var(--white)}.button.oxide{background:var(--oxide);border-color:var(--oxide);color:white}.button:disabled{opacity:.45;cursor:not-allowed;transform:none}
.state{max-width:760px;margin:96px auto;padding:0 28px}.state-card{background:rgba(255,253,248,.9);border:1px solid var(--hairline);box-shadow:0 24px 70px -45px var(--shadow);padding:32px}.state-card h1{font:italic 46px/1 "Instrument Serif",serif;margin:0 0 16px}.state-card p{color:var(--carbon-soft);line-height:1.65}
.workspace{max-width:1440px;margin:auto;padding:42px 28px 80px}.workspace-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:end;margin-bottom:34px}
.eyebrow{font-size:10px;font-weight:750;letter-spacing:.2em;text-transform:uppercase;color:var(--oxide);margin-bottom:10px}.workspace-head h1{font:italic clamp(42px,5vw,68px)/.95 "Instrument Serif",serif;margin:0;letter-spacing:-.02em}.workspace-head p{color:var(--carbon-soft);max-width:700px;line-height:1.55;margin:14px 0 0}.case-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.case-controls select{min-width:240px}
.workbench{display:grid;grid-template-columns:260px minmax(0,1fr);border:1px solid var(--hairline);background:rgba(255,253,248,.78);box-shadow:0 30px 90px -58px rgba(32,27,23,.38);min-height:720px}
.case-spine{padding:28px 22px;border-right:1px solid var(--hairline);background:rgba(233,228,218,.45)}.spine-title{font:italic 23px "Instrument Serif",serif;margin:0 0 6px}.spine-sub{color:var(--slate);font-size:11px;line-height:1.5;margin-bottom:28px}.chain{list-style:none;margin:0;padding:0}.chain li{position:relative;padding:0 0 28px 28px}.chain li:not(:last-child)::after{content:"";position:absolute;left:7px;top:18px;bottom:0;width:1px;background:var(--hairline)}.chain-dot{position:absolute;left:0;top:4px;width:15px;height:15px;border:2px solid var(--slate);background:var(--paper);border-radius:50%;z-index:1}.chain li.complete .chain-dot{background:var(--verified);border-color:var(--verified)}.chain li.active .chain-dot{background:var(--oxide);border-color:var(--oxide);box-shadow:0 0 0 5px var(--oxide-soft)}.chain button{border:0;background:transparent;text-align:left;padding:0;cursor:pointer;width:100%}.chain-name{display:block;font-size:13px;font-weight:720}.chain-status{display:block;color:var(--slate);font-size:11px;margin-top:4px}.case-facts{border-top:1px solid var(--hairline);padding-top:20px;margin-top:10px;display:grid;gap:13px}.fact-label{font-size:9px;text-transform:uppercase;letter-spacing:.16em;color:var(--slate)}.fact-value{font-size:11px;margin-top:4px;overflow-wrap:anywhere}
.readiness-facts{border-top:1px solid var(--hairline);margin-top:20px;padding-top:20px}.readiness-facts dl{display:grid;gap:8px;margin:12px 0 0}.readiness-facts dl>div{display:flex;justify-content:space-between;gap:8px;font-size:10px}.readiness-facts dt{color:var(--carbon-soft)}.readiness-facts dd{margin:0;text-align:right;font-weight:720}.readiness-facts dd.complete{color:var(--verified)}.readiness-facts dd.pending{color:var(--oxide)}
.task{padding:38px 42px 60px;min-width:0}.panel[hidden]{display:none}.panel-head{display:flex;justify-content:space-between;gap:24px;align-items:start;border-bottom:1px solid var(--hairline);padding-bottom:22px;margin-bottom:28px}.step-index{font:italic 20px "Instrument Serif",serif;color:var(--oxide)}.panel h2{font:italic 36px/1.05 "Instrument Serif",serif;margin:4px 0 9px}.panel-lede{font-size:14px;line-height:1.6;color:var(--carbon-soft);max-width:720px;margin:0}.status-chip{white-space:nowrap;border:1px solid var(--hairline);border-radius:999px;padding:6px 10px;font-size:10px;font-weight:750;letter-spacing:.1em;text-transform:uppercase;color:var(--slate)}.status-chip.verified{color:var(--verified);border-color:var(--verified)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:11px;font-weight:750;letter-spacing:.06em}.field input,.field select{width:100%;border:1px solid var(--hairline);border-radius:4px;background:rgba(255,253,248,.92);padding:11px 12px;min-height:43px;color:var(--carbon)}.field input[type=file]{padding:8px}.field small{font-size:11px;line-height:1.45;color:var(--slate)}
.upload-zone{border:1px dashed var(--slate);padding:22px;background:rgba(244,241,234,.5);margin:22px 0}.upload-zone strong{display:block;font-size:13px;margin-bottom:5px}.upload-zone p{font-size:12px;color:var(--slate);line-height:1.55;margin:0 0 14px}.evidence-map{display:grid;gap:10px;margin:18px 0}.evidence-row{display:grid;grid-template-columns:minmax(150px,1fr) minmax(190px,1.2fr);gap:14px;align-items:center;border-top:1px solid var(--hairline);padding-top:12px}.evidence-ref{font-size:11px;overflow-wrap:anywhere}.evidence-ref span{display:block;color:var(--slate);font-family:Inter,sans-serif;margin-top:4px}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:24px}.responsibility{display:flex;gap:10px;align-items:flex-start;font-size:12px;line-height:1.55;color:var(--carbon-soft);margin:20px 0}.responsibility input{margin-top:3px}
.method-map{display:grid;gap:14px;margin:18px 0}.method-card{border:1px solid var(--hairline);background:rgba(255,253,248,.7);padding:16px}.method-card-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,.55fr);gap:18px;align-items:end}.method-card-title{font-size:12px;font-weight:760;overflow-wrap:anywhere}.method-card-meta{display:block;color:var(--slate);font-size:10px;margin-top:5px}.actual-fields{border-top:1px solid var(--hairline);margin-top:16px;padding-top:16px}.actual-fields .form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.optional{font:9px Inter,sans-serif;text-transform:uppercase;letter-spacing:.12em;color:var(--slate)}
.supplier-request{grid-column:1/-1;border:1px solid var(--hairline);background:var(--white);padding:16px}.supplier-request h4{font:italic 22px "Instrument Serif",serif;margin:0 0 4px}.supplier-request>p{font-size:11px;color:var(--slate);margin:0 0 14px}.supplier-request-grid{margin-bottom:12px}.supplier-request-summary{font-size:12px;font-weight:700}.supplier-request-id{font-size:10px;color:var(--slate);margin:5px 0 12px;overflow-wrap:anywhere}.supplier-request-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:end}.supplier-request-actions .field{flex:1 1 280px}.supplier-request-actions .button{margin-bottom:1px}.supplier-response-confirm{margin:14px 0 0}
.precursor-map{display:grid;gap:10px}.precursor-card{border:1px dashed var(--slate);padding:14px;background:var(--paper)}.precursor-title{font-size:11px;font-weight:760;margin-bottom:12px;overflow-wrap:anywhere}.precursor-card .form-grid{margin:0}
.notice{border-left:3px solid var(--oxide);background:var(--oxide-soft);padding:14px 16px;margin:18px 0;font-size:12px;line-height:1.6}.notice.success{border-left-color:var(--verified);background:var(--verified-soft)}.notice h3{font-size:12px;margin:0 0 5px}.notice p{margin:0;color:var(--carbon-soft)}.error-card{border:1px solid color-mix(in srgb,var(--oxide) 55%,var(--hairline));background:#fff9f6;padding:18px;margin:18px 0}.error-card h3{margin:0 0 8px;font-size:15px}.error-card p{font-size:12px;line-height:1.55;color:var(--carbon-soft)}.error-rule{font:10px "JetBrains Mono",monospace;color:var(--slate);overflow-wrap:anywhere}.error-table{width:100%;border-collapse:collapse;margin-top:14px;font-size:11px}.error-table th,.error-table td{text-align:left;padding:8px;border-top:1px solid var(--hairline);vertical-align:top}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--hairline);margin-bottom:26px}.metric{padding:18px;border-right:1px solid var(--hairline)}.metric:last-child{border-right:0}.metric-label{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--slate)}.metric-value{font:italic 27px "Instrument Serif",serif;margin-top:8px;overflow-wrap:anywhere}
.table-wrap{overflow:auto;border:1px solid var(--hairline);margin:18px 0 26px}.data-table{border-collapse:collapse;width:100%;font-size:11px;min-width:680px}.data-table th{text-align:left;background:var(--paper-deep);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate)}.data-table th,.data-table td{padding:10px 12px;border-bottom:1px solid var(--hairline);vertical-align:top}.data-table tr:last-child td{border-bottom:0}
.section-title{font:italic 24px "Instrument Serif",serif;margin:30px 0 10px}.checklist{list-style:none;padding:0;margin:18px 0;border-top:1px solid var(--hairline)}.checklist li{display:grid;grid-template-columns:24px 1fr auto;gap:10px;padding:13px 0;border-bottom:1px solid var(--hairline);font-size:12px;line-height:1.5}.checkmark{color:var(--verified);font-weight:800}.check-source{font:10px "JetBrains Mono",monospace;color:var(--slate)}
.hash-block{background:var(--carbon);color:#f8f5ee;padding:20px;margin:20px 0}.hash-block .fact-label{color:#aaa49a}.hash-block .fact-value{font-size:12px;color:#f8f5ee}.handoff-proof{border:1px solid var(--verified);background:var(--verified-soft);padding:20px}.handoff-proof h3{font:italic 25px "Instrument Serif",serif;margin:0 0 8px}.empty{border:1px dashed var(--hairline);padding:24px;text-align:center;color:var(--slate);font-size:13px}
.busy{position:fixed;inset:0;background:rgba(33,31,28,.32);display:grid;place-items:center;z-index:60}.busy-card{background:var(--white);border:1px solid var(--hairline);padding:20px 24px;box-shadow:0 20px 60px var(--shadow);font-size:13px}.spinner{display:inline-block;width:13px;height:13px;border:2px solid var(--hairline);border-top-color:var(--oxide);border-radius:50%;animation:spin .75s linear infinite;margin-right:8px;vertical-align:-2px}@keyframes spin{to{transform:rotate(360deg)}}
footer{border-top:1px solid var(--hairline);padding:28px;text-align:center;font-size:11px;color:var(--slate)}
@media(max-width:900px){.workspace-head{grid-template-columns:1fr}.case-controls{justify-content:flex-start}.workbench{grid-template-columns:1fr}.case-spine{border-right:0;border-bottom:1px solid var(--hairline)}.chain{display:grid;grid-template-columns:repeat(4,1fr)}.chain li{padding:25px 8px 0}.chain li:not(:last-child)::after{left:15px;right:-8px;top:7px;bottom:auto;width:auto;height:1px}.chain-dot{left:8px;top:0}.case-facts{grid-template-columns:repeat(3,1fr)}.task{padding:30px 24px 50px}}
@media(max-width:640px){.nav-inner{padding:0 18px}.nav-meta a:not(.button){display:none}.workspace{padding:28px 14px 60px}.workspace-head h1{font-size:43px}.case-controls{display:grid;grid-template-columns:1fr}.case-controls select{min-width:0;width:100%}.case-spine{padding:20px 14px}.chain-name{font-size:11px}.chain-status{display:none}.case-facts{grid-template-columns:1fr 1fr}.task{padding:24px 16px 42px}.panel-head{display:block}.status-chip{display:inline-block;margin-top:14px}.form-grid,.actual-fields .form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.evidence-row,.method-card-head{grid-template-columns:1fr}.metrics{grid-template-columns:1fr 1fr}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--hairline)}.checklist li{grid-template-columns:20px 1fr}.check-source{grid-column:2}.nav-meta{gap:8px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition:none!important}}