@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap");

/* ---- design tokens (light) ---- */
:root{
  --bg:#f6f8fa; --surface:#ffffff; --surface-2:#eef2f6;
  --ink:#15212f; --ink-2:#4b5a6b; --ink-3:#7a889a;
  --line:#e2e8ef; --line-strong:#cdd6e0;
  --accent:#0f6e82; --accent-ink:#0b5566; --accent-wash:#e1eef1; --on-accent:#ffffff;
  --ok:#1f8a56; --ok-wash:#e4f4ec; --warn:#b45309; --warn-wash:#fbeedd; --danger:#c0392b; --danger-wash:#fae8e6;
  --delta:#d4660c; --theta:#c0458f; --alpha:#d99a00; --beta:#1f6fb2;
  --bsr:#5b6b7b;
  --radius:12px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(18,33,48,.06),0 3px 10px rgba(18,33,48,.04);
  --maxw:1080px;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"Cascadia Code",Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0d141b; --surface:#151e28; --surface-2:#1c2733;
    --ink:#e8eef4; --ink-2:#a4b2c0; --ink-3:#74838f;
    --line:#26323f; --line-strong:#35475a;
    --accent:#38a7c4; --accent-ink:#60bdd7; --accent-wash:#12313b; --on-accent:#06222a;
    --ok:#3fc587; --ok-wash:#123524; --warn:#e0922f; --warn-wash:#3a2a13; --danger:#e06b5c; --danger-wash:#3a1d1a;
    --delta:#e8873a; --theta:#e07cc0; --alpha:#eac24c; --beta:#56a9e0;
    --bsr:#8ea2b5;
    --shadow:0 1px 2px rgba(0,0,0,.45),0 3px 12px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"]{
  --bg:#0d141b; --surface:#151e28; --surface-2:#1c2733;
  --ink:#e8eef4; --ink-2:#a4b2c0; --ink-3:#74838f;
  --line:#26323f; --line-strong:#35475a;
  --accent:#38a7c4; --accent-ink:#60bdd7; --accent-wash:#12313b; --on-accent:#06222a;
  --ok:#3fc587; --ok-wash:#123524; --warn:#e0922f; --warn-wash:#3a2a13; --danger:#e06b5c; --danger-wash:#3a1d1a;
  --delta:#e8873a; --theta:#e07cc0; --alpha:#eac24c; --beta:#56a9e0;
  --bsr:#8ea2b5;
  --shadow:0 1px 2px rgba(0,0,0,.45),0 3px 12px rgba(0,0,0,.35);
}

/* ---- base ---- */
*{box-sizing:border-box;}
html,body{margin:0;}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased;}
h1,h2,h3{margin:0;font-weight:600;line-height:1.25;letter-spacing:-.01em;}
a{color:var(--accent);}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}
.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;}

/* ---- container ---- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:24px 16px 64px;}
.page-title{font-size:1.5rem;margin-bottom:4px;}
.lede{color:var(--ink-2);margin:0 0 20px;max-width:62ch;}

/* ---- cards ---- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:20px;}

/* ---- intake ---- */
.file-field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.file-label{font-size:.8125rem;color:var(--ink-2);}
input[type="file"]{font:inherit;color:var(--ink);background:var(--surface-2);border:1px dashed var(--line-strong);border-radius:var(--radius-sm);padding:12px;width:100%;max-width:520px;}
input[type="file"]::file-selector-button{font:inherit;font-weight:500;margin-right:12px;padding:8px 14px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);cursor:pointer;}
.actions{display:flex;flex-wrap:wrap;gap:10px;}

/* ---- buttons ---- */
.btn{font:inherit;font-weight:500;padding:10px 16px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);cursor:pointer;transition:background .12s,border-color .12s;}
.btn:hover{background:var(--surface-2);}
.btn:disabled{opacity:.55;cursor:not-allowed;}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent);}
.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink);}
.progress-text{margin:14px 0 0;color:var(--ink-2);min-height:1.25rem;}

/* ---- summary ---- */
.summary-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px 20px;}
.stat{display:flex;flex-direction:column;gap:2px;}
.stat-k{font-size:.75rem;color:var(--ink-3);}
.stat-v{font-size:.95rem;color:var(--ink);}
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.8125rem;font-weight:500;text-transform:capitalize;}
.badge-ok{background:var(--ok-wash);color:var(--ok);}
.badge-danger{background:var(--danger-wash);color:var(--danger);}

/* ---- alerts ---- */
.alert{border-radius:var(--radius-sm);padding:12px 14px;margin:14px 0 0;font-size:.9rem;}
.alert ul{margin:6px 0 0;padding-left:18px;}
.alert p{margin:4px 0 0;}
.alert-danger{background:var(--danger-wash);color:var(--danger);border:1px solid color-mix(in srgb,var(--danger) 25%,transparent);}
.alert-warn{background:var(--warn-wash);color:var(--warn);border:1px solid color-mix(in srgb,var(--warn) 25%,transparent);}

/* ---- raw table ---- */
.raw{margin-top:8px;color:var(--ink-2);}
.raw summary{cursor:pointer;}
.raw-table{border-collapse:collapse;margin-top:10px;font-size:.8125rem;width:100%;}
.raw-table td{border-bottom:1px solid var(--line);padding:4px 10px;vertical-align:top;}
.raw-table td:first-child{color:var(--ink-3);white-space:nowrap;}

/* ---- focus & motion ---- */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
@media (prefers-reduced-motion:reduce){*{transition:none !important;animation:none !important;}}

/* ---- Blazor loading + error ---- */
.boot{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:var(--bg);color:var(--ink);}
.boot-glyph{width:56px;height:30px;color:var(--accent);}
.boot-name{font-weight:600;font-size:1.1rem;letter-spacing:-.01em;}
.boot-spinner{width:42px;height:42px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:nmw-spin .8s linear infinite;}
.boot-note{font-size:.8125rem;color:var(--ink-3);}
@keyframes nmw-spin{to{transform:rotate(360deg);}}
#blazor-error-ui{background:var(--surface);color:var(--ink);border-top:1px solid var(--line);box-shadow:0 -1px 2px rgba(0,0,0,.2);bottom:0;left:0;position:fixed;width:100%;padding:.7rem 1.25rem;display:none;z-index:1000;}
#blazor-error-ui .dismiss{cursor:pointer;position:absolute;right:.75rem;top:.6rem;}
#blazor-error-ui .reload{color:var(--accent);}

/* ---- progress stepper ---- */
.stepper{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:18px;}
.steps{list-style:none;display:flex;align-items:center;margin:0;padding:0;gap:10px;}
.step{display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--ink-3);}
.step + .step::before{content:"";width:28px;height:2px;border-radius:2px;background:var(--line-strong);}
.step.active::before,.step.done::before{background:var(--accent);}
.step-dot{position:relative;width:16px;height:16px;border-radius:50%;border:2px solid var(--line-strong);background:var(--surface);box-sizing:border-box;flex:none;}
.step.active{color:var(--ink);}
.step.active .step-dot{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-wash);animation:nmw-pulse 1.3s ease-in-out infinite;}
.step.done{color:var(--ink-2);}
.step.done .step-dot{border-color:var(--accent);background:var(--accent);}
.step.done .step-dot::after{content:"";position:absolute;left:4px;top:1px;width:4px;height:8px;border:solid var(--on-accent);border-width:0 2px 2px 0;transform:rotate(45deg);}
.step-time{color:var(--ink-3);font-size:.8125rem;}
@keyframes nmw-pulse{0%,100%{box-shadow:0 0 0 3px var(--accent-wash);}50%{box-shadow:0 0 0 6px var(--accent-wash);}}

/* ---- charts ---- */
.chart{width:100%;position:relative;}
.chart svg{display:block;}
.chart-title{font-size:1.1rem;}
.chart-sub{margin:2px 0 10px;color:var(--ink-2);font-size:.85rem;}
.chart-foot{margin:10px 0 0;font-size:.72rem;color:var(--ink-3);}
.chart-tip{position:absolute;pointer-events:none;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:3px 8px;font-size:.72rem;box-shadow:var(--shadow);opacity:0;transition:opacity .08s;white-space:nowrap;z-index:5;}

/* ---- intake flow ---- */
.choose-q{font-size:1rem;color:var(--ink);margin:0 0 14px;}
.choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;}
.choice{display:flex;flex-direction:column;gap:6px;text-align:left;padding:18px;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);cursor:pointer;transition:border-color .12s,background .12s;}
.choice:hover{border-color:var(--accent);background:var(--surface-2);}
.choice-title{font-weight:600;font-size:1.05rem;color:var(--ink);}
.choice-desc{font-size:.85rem;color:var(--ink-2);line-height:1.4;}
.choose-formats{font-size:.82rem;color:var(--ink-2);line-height:1.45;margin:14px 0 0;padding:10px 12px;background:var(--surface-2,rgba(127,127,127,.06));border:1px solid var(--line,rgba(127,127,127,.18));border-radius:8px;}
.link-back{background:none;border:none;color:var(--accent);cursor:pointer;font:inherit;padding:0;margin:0 0 14px;}
.file-count{font-size:.85rem;color:var(--ink-2);margin:4px 0 14px;}
.seg{display:inline-flex;border:1px solid var(--line-strong);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:14px;}
.seg .btn{border:none;border-radius:0;background:var(--surface);}
.seg .btn + .btn{border-left:1px solid var(--line-strong);}
.seg .seg-on{background:var(--accent);color:var(--on-accent);}
.chan-select{display:block;padding:8px 10px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);font-size:.9rem;max-width:360px;margin-bottom:4px;}
.step-num{font-size:.78rem;font-weight:600;color:var(--accent);letter-spacing:.03em;text-transform:uppercase;margin:16px 0 6px;}
.alert-hint{margin:6px 0 0;font-size:.85rem;color:var(--ink-2);}
.manual-head{font-size:.9rem;color:var(--ink-2);margin:2px 0 8px;}
.manual-inputs{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:14px;}
.manual-inputs label{display:flex;flex-direction:column;gap:4px;font-size:.8125rem;color:var(--ink-2);}
.manual-inputs input{font:inherit;padding:8px 10px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);width:150px;}
.run-again{display:flex;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap;}
.run-again span{color:var(--ink-2);}

/* ---- custom file picker (replaces the browser's native file button) ---- */
.file-picker{display:inline-flex;align-items:center;gap:12px;cursor:pointer;background:var(--surface-2);border:1px dashed var(--line-strong);border-radius:var(--radius-sm);padding:10px 12px;max-width:520px;width:100%;}
.file-picker:hover .file-btn{background:var(--surface-2);}
.file-btn{font-weight:500;padding:8px 14px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);white-space:nowrap;}
.file-name{color:var(--ink-2);font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---- chart header with inline toggle ---- */
.chart-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:10px;}
.seg-sm .btn{padding:6px 12px;font-size:.85rem;}
.band-legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin:2px 0 8px;}
.band-key{display:inline-flex;align-items:center;gap:6px;font-size:.74rem;color:var(--ink-2);}
.band-key i{width:12px;height:3px;border-radius:2px;display:inline-block;}
.result-actions{display:flex;gap:10px;justify-content:flex-end;margin:0 0 4px;}
.annot-table{width:100%;border-collapse:collapse;font-size:.85rem;margin-top:8px;}
.annot-table td{border-top:1px solid var(--line);padding:4px 8px;vertical-align:top;}
.annot-table td:first-child{color:var(--ink-2);white-space:nowrap;width:1%;}
.chart-stack{display:flex;flex-direction:column;}
.card-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.card-move{display:inline-flex;gap:3px;}
.icon-btn{width:26px;height:26px;border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:6px;cursor:pointer;font-size:.95rem;line-height:1;display:inline-flex;align-items:center;justify-content:center;padding:0;}
.icon-btn:hover:not(:disabled){background:var(--surface-2);color:var(--ink);}
.icon-btn:disabled{opacity:.35;cursor:default;}
.raw-controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.chart-empty{padding:34px 12px;text-align:center;color:var(--ink-3);font-size:.85rem;}
.chart-method{margin:10px 0 0;font-size:.72rem;color:var(--ink-3);line-height:1.4;}

/* ---- Methodology document ---- */
.method-actions{display:flex;gap:10px;justify-content:flex-end;max-width:820px;margin:0 auto 14px;}
.link-btn{text-decoration:none;}
.method-sheet{max-width:820px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 40px;line-height:1.5;}
.method-sheet h2{font-size:1.4rem;margin:0 0 4px;}
.method-sheet h3{font-size:1rem;margin:16px 0 3px;color:var(--accent);}
.method-sheet p{margin:0 0 6px;font-size:.92rem;color:var(--ink);}
.method-lead{color:var(--ink-2)!important;font-size:.88rem!important;margin-bottom:10px!important;}
.method-table{width:100%;border-collapse:collapse;margin:4px 0 6px;font-size:.84rem;}
.method-table td{border-top:1px solid var(--line);padding:4px 6px;vertical-align:top;}
.method-table td:first-child{color:var(--ink-2);width:34%;white-space:nowrap;}
.method-refs{margin:2px 0 0;padding-left:20px;font-size:.82rem;color:var(--ink);}
.method-refs li{margin:0 0 3px;}
.method-foot{margin-top:14px!important;font-size:.76rem!important;color:var(--ink-3)!important;border-top:1px solid var(--line);padding-top:8px;}

@media print{
  @page{size:letter;margin:0.7in;}
  body{background:#fff;}
  .topbar,.no-print{display:none!important;}
  .main,.container{padding:0!important;margin:0!important;max-width:none!important;}
  .method-sheet{max-width:none;margin:0;border:none;box-shadow:none;border-radius:0;padding:0;font-size:10pt;color:#000;line-height:1.35;}
  .method-sheet h2{font-size:14pt;}
  .method-sheet h3{font-size:10.5pt;margin:7px 0 2px;color:#000;}
  .method-sheet p{font-size:9.3pt;color:#000;margin:0 0 4px;}
  .method-lead{font-size:9pt!important;}
  .method-table{font-size:8.6pt;}
  .method-refs{font-size:8.4pt;color:#000;}
  .method-foot{font-size:7.6pt!important;color:#000!important;}
}

/* ---- Left side dock (export/report) ---- */
.print-only{display:none;}
.side-dock{position:fixed;left:14px;bottom:22px;display:flex;flex-direction:column;gap:8px;z-index:40;}
.dock-btn{width:46px;height:46px;border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:12px;box-shadow:var(--shadow);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;padding:0;}
.dock-btn:hover{background:var(--surface-2);color:var(--accent);border-color:var(--accent);}
.dock-btn svg{width:18px;height:18px;}
.dock-lbl{font-size:.6rem;letter-spacing:.02em;}
@media (max-width:640px){.side-dock{left:10px;bottom:14px;}.dock-btn{width:42px;height:42px;}}

/* ---- Session report (print) ---- */
@media print{
  .page-title,.lede,.alert,.run-again,.stepper,.chart-method,.chart-foot,.card-move,.seg,.band-legend,.raw,.panel-method,.panel-foot,.panel-sub{display:none!important;}
  .print-only{display:block!important;}
  .card{border:none!important;box-shadow:none!important;border-radius:0!important;padding:0 0 5px!important;margin:0 0 6px!important;break-inside:avoid;}
  .chart-stack{display:block!important;}
  .chart-head{display:block!important;margin:0!important;}
  .chart-title{font-size:10pt!important;margin:0 0 1px!important;}
  .chart{margin:0!important;}
  .chart svg{width:100%!important;height:auto!important;max-height:1.3in!important;}
  .chart canvas{width:100%!important;height:auto!important;max-height:1.7in!important;}
  .report-head{margin:0 0 6px!important;border-bottom:1px solid #000;padding-bottom:3px;}
  .rh-title{font-size:12pt;font-weight:600;color:#000;}
  .rh-meta{font-size:8.5pt;color:#000;margin-top:2px;}
  .report-foot{margin-top:8px!important;border-top:1px solid #000;padding-top:3px;font-size:7.4pt;color:#000;}
  .summary-row{gap:3px 14px!important;}
  .stat-k{font-size:7.4pt!important;}
  .stat-v{font-size:8.6pt!important;}
  .panel-title{font-size:11pt!important;}
  .band-grid{gap:6px!important;}
}

/* report-compact: fit the session report on one letter page */
@media print{
  .chart-sub,.panel-note,.panel-section,.meter,.chart-method,.chart-foot{display:none!important;}
  .card{margin:0 0 4px!important;padding:0 0 3px!important;}
  .panel-title{font-size:10.5pt!important;margin:0 0 3px!important;}
  .band-grid{grid-template-columns:repeat(5,1fr)!important;gap:5px!important;}
  .band{padding:4px 7px!important;border-radius:6px!important;}
  .band-label{font-size:7pt!important;}
  .band-value{font-size:11pt!important;line-height:1.1!important;}
  .band-unit{font-size:6.5pt!important;}
  .band-abs{font-size:6.5pt!important;margin-top:1px!important;}
  .chart-title{font-size:9pt!important;margin:0 0 1px!important;}
  .chart svg{width:100%!important;height:1.05in!important;max-height:none!important;}
  .chart canvas{width:100%!important;height:1.5in!important;max-height:none!important;}
  .summary-row{gap:2px 14px!important;}
  .quality-card .alert{display:block!important;margin:2px 0!important;padding:4px 8px!important;font-size:8pt!important;}
  .report-head{margin:0 0 5px!important;}
  .report-foot{margin-top:5px!important;}
}

/* report-onepage: aggressive compaction so quality/events cards still fit one page */
@media print{
  .card{margin:0 0 3px!important;}
  .summary-row{gap:1px 12px!important;}
  .stat-k{font-size:7pt!important;}
  .stat-v{font-size:8pt!important;}
  .quality-card .chart-title,.annot-card .chart-title{font-size:9pt!important;margin:0 0 2px!important;}
  .quality-card .alert{font-size:7.4pt!important;padding:3px 6px!important;margin:1px 0!important;}
  .annot-card .chart-sub{display:none!important;}
  .annot-table{font-size:7.2pt!important;margin-top:2px!important;}
  .annot-table td{padding:2px 6px!important;}
  .band{padding:3px 6px!important;}
  .band-value{font-size:10pt!important;}
  .band-abs{font-size:6pt!important;}
  .chart svg{height:0.95in!important;}
  .chart canvas{height:1.3in!important;}
  .report-foot{margin-top:4px!important;font-size:7pt!important;}
}

/* Per-panel methods & references (expandable) */
.refbox{margin-top:12px;border-top:1px solid var(--line,#e0e8f0);padding-top:9px}
.refbox summary{cursor:pointer;list-style:none;font-size:.8rem;font-weight:600;color:var(--accent,#0C7D88)}
.refbox summary::-webkit-details-marker{display:none}
.refbox summary::before{content:"\25B8  ";color:var(--muted,#51647a)}
.refbox[open] summary::before{content:"\25BE  "}
.refbox .ref-how{font-size:.82rem;color:var(--muted,#51647a);margin:9px 0 7px;line-height:1.5}
.refbox .ref-list{margin:0;padding-left:18px}
.refbox .ref-list li{font-size:.78rem;color:var(--muted,#51647a);margin:5px 0;line-height:1.55}
.refbox .ref-list a{color:var(--accent,#0C7D88);text-decoration:none;word-break:break-word}
.refbox .ref-list a:hover{text-decoration:underline}