/* Ledgerline design system - derived from the product spec's appendix.
   Same tokens/patterns as the spec document itself: paper ground, single
   teal accent, semantic status colors kept distinct from the accent. */
:root{
  --paper:#eef0ec;
  --paper-2:#e4e7e0;
  --card:#fbfbf9;
  --ink:#16213a;
  --soft:#4d5567;
  --faint:#7c8496;
  --line:#d7dbd4;
  --line-2:#c7ccc3;
  --accent:#0d6e6e;
  --accent-ink:#073f3f;
  --accent-wash:#e2eeed;
  --good:#3f7d4a;
  --good-wash:#e8f1e7;
  --warn:#a56a1f;
  --warn-wash:#f5ecdc;
  --bad:#a83a3a;
  --bad-wash:#f6e6e4;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#12161f; --paper-2:#181d29; --card:#1b202c; --ink:#eef0ec;
    --soft:#b7bdcc; --faint:#8891a3; --line:#2b3242; --line-2:#384154;
    --accent:#3fb8b0; --accent-ink:#bdeee8; --accent-wash:#123634;
    --good:#7fce8c; --good-wash:#153824; --warn:#e0ab5c; --warn-wash:#3a2c12;
    --bad:#e5837e; --bad-wash:#3a1e1c;
    color-scheme: dark;
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font:16px/1.55 var(--sans);
  min-height:100vh;
  min-height:100dvh;
}
a{color:var(--accent-ink)}
code,.mono{font-family:var(--mono)}
::selection{background:var(--accent);color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px
}

/* ---- app shell ---- */
.app-shell{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}
.app-bar{
  display:flex;align-items:center;gap:12px;padding:10px 16px;
  border-bottom:1px solid var(--line);background:var(--card);
  position:sticky;top:0;z-index:20;
}
.app-bar .mark{font-family:var(--mono);font-weight:700;letter-spacing:-3px;color:var(--accent);font-size:22px}
.app-bar .org-name{font-family:var(--serif);font-size:17px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-bar .spacer{flex:1}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:18px;color:var(--ink)}
.user-chip{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--soft)}
.user-chip form{display:inline}
.user-chip button{background:none;border:1px solid var(--line);border-radius:8px;padding:5px 10px;font-size:12.5px;color:var(--soft);cursor:pointer}
.user-chip button:hover{color:var(--bad);border-color:var(--bad)}

.app-body{display:flex;flex:1;min-height:0}
.app-nav{
  width:220px;flex:0 0 220px;border-right:1px solid var(--line);
  padding:16px 10px;background:var(--card);overflow-y:auto;
}
.app-nav a{
  display:block;padding:8px 12px;border-radius:8px;color:var(--soft);
  text-decoration:none;font-size:13.5px;margin-bottom:2px;
}
.app-nav a:hover{background:var(--paper-2);color:var(--ink)}
.app-nav a.active{background:var(--accent-wash);color:var(--accent-ink);font-weight:600}
.app-nav .nav-group{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:16px 12px 6px}
.app-nav .nav-group:first-child{margin-top:2px}

.app-main{flex:1;min-width:0;padding:24px 28px 80px;overflow-y:auto}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center}
  .app-nav{
    position:fixed;inset:0 20% 0 0;transform:translateX(-100%);transition:transform .18s ease;
    z-index:30;box-shadow:2px 0 24px rgba(0,0,0,.15);width:auto;
  }
  .app-nav.open{transform:translateX(0)}
  .nav-scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:25}
  .nav-scrim.open{display:block}
  .app-main{padding:16px 14px 90px}
  .org-name{display:none}
}

.page-head{margin-bottom:20px}
.page-head h1{font-family:var(--serif);font-weight:500;font-size:26px;margin:0 0 4px;color:var(--ink)}
.page-head p{color:var(--soft);margin:0;font-size:14.5px}
.page-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

/* ---- generic components (shared with the spec doc) ---- */
h2{font-family:var(--serif);font-weight:500;font-size:21px;margin:0 0 10px}
h3{font-family:var(--serif);font-weight:500;font-size:17px;margin:22px 0 8px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:18px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}

.table-wrap{overflow-x:auto;margin:10px 0;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:13.5px;background:var(--card)}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--paper-2);font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--soft);font-weight:600}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--paper-2)}
td.num,th.num{text-align:right;font-family:var(--mono)}

.pill{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-family:var(--mono);padding:2px 9px;border-radius:999px;font-weight:600;white-space:nowrap}
.pill.good{background:var(--good-wash);color:var(--good)}
.pill.warn{background:var(--warn-wash);color:var(--warn)}
.pill.bad{background:var(--bad-wash);color:var(--bad)}
.pill.neutral{background:var(--paper-2);color:var(--soft)}

.callout{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:14px 18px;margin:14px 0;font-size:14px}
.callout.rule{border-color:#bfd9d5;background:var(--accent-wash)}
.callout.warn{border-color:#e6d2ab;background:var(--warn-wash)}
.callout.out{border-color:#e3c3bd;background:var(--bad-wash)}
.callout-label{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--soft);display:block;margin-bottom:6px}

.stat{display:flex;flex-direction:column;gap:2px}
.stat .stat-label{font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--faint)}
.stat .stat-value{font-family:var(--mono);font-size:22px;color:var(--ink)}
.stat .stat-value.bad{color:var(--bad)}
.stat .stat-value.good{color:var(--good)}

/* forms */
label{display:block;font-size:12.5px;color:var(--soft);margin:0 0 4px;font-weight:600}
.field{margin-bottom:14px}
.field-row{display:flex;gap:12px;flex-wrap:wrap}
.field-row .field{flex:1;min-width:160px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=search],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line-2);border-radius:8px;
  background:var(--card);color:var(--ink);font:14px var(--sans);
}
textarea{min-height:80px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
.help{font-size:12px;color:var(--faint);margin-top:3px}

.btn{
  display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;
  border:1px solid var(--line-2);background:var(--card);color:var(--ink);
  font:600 13.5px var(--sans);cursor:pointer;text-decoration:none;
}
.btn:hover{background:var(--paper-2)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-ink);border-color:var(--accent-ink)}
.btn.danger{background:var(--bad-wash);border-color:#e3c3bd;color:var(--bad)}
.btn.danger:hover{background:var(--bad);color:#fff}
.btn.sm{padding:5px 11px;font-size:12.5px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

.flash{padding:11px 16px;border-radius:8px;margin-bottom:16px;font-size:13.5px}
.flash.success{background:var(--good-wash);color:var(--good)}
.flash.error{background:var(--bad-wash);color:var(--bad)}

.empty-state{padding:40px 20px;text-align:center;color:var(--faint);font-size:14px}

/* login page */
.auth-shell{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{width:100%;max-width:360px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:32px 28px}
.auth-mark{font-family:var(--mono);font-weight:700;letter-spacing:-4px;color:var(--accent);font-size:30px;text-align:center;margin-bottom:6px}
.auth-title{font-family:var(--serif);font-size:20px;text-align:center;margin:0 0 22px;color:var(--ink)}

/* template builder field grid (shared with print/report renders) */
.tpl-field-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px 18px;margin:10px 0}
.tpl-field{display:flex;flex-direction:column}
.tpl-field-label{font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--faint)}
.tpl-field-value{font-family:var(--mono);font-size:13.5px;color:var(--ink)}

/* document viewer + stamp placement */
.doc-viewer{position:relative;background:#33363c;border-radius:10px;overflow:auto;max-height:75vh}
.doc-viewer img,.doc-viewer canvas,.doc-viewer iframe{display:block;margin:0 auto;max-width:100%}
.doc-viewer.placing{cursor:crosshair}
.stamp-marker{
  position:absolute;border:2px dashed var(--accent);background:rgba(13,110,110,.12);
  color:var(--accent-ink);font:600 11px var(--mono);padding:4px 8px;border-radius:6px;
  transform:translate(-4px,-4px);white-space:nowrap;pointer-events:none;
}
.doc-pager{display:flex;gap:8px;align-items:center;justify-content:center;padding:10px 0;font-size:13px;color:var(--soft)}

@media print{
  .app-bar,.app-nav,.nav-scrim,.page-actions,.no-print{display:none !important}
  .app-main{padding:0}
  body{background:#fff}
}