/* ============================================================
   ARKA · Design System (Corporate Blue)
   Палитра/типографика извлечены из demo_v3_corporate_blue.html.
   Без внешних CDN: шрифты — system-ui / monospace fallback (152-ФЗ, офлайн).
   ============================================================ */

:root{
  /* — палитра Corporate Blue (из прототипа) — */
  --bg: #ffffff;
  --bg-soft: #f6f9fc;
  --bg-tinted: #eef4fb;
  --border: #e3e9f2;
  --border-soft: #eef2f8;
  --text: #0b1e3d;
  --text-sec: #334a6c;
  --text-mute: #6b7d97;
  --primary: #0052cc;
  --primary-dark: #003d99;
  --primary-soft: #e6efff;
  --success: #0e8a5a;
  --warning: #d47400;
  --danger: #c8302a;
  --shadow: 0 1px 2px rgba(11,30,61,.04), 0 2px 8px rgba(11,30,61,.06);
  --shadow-lg: 0 4px 12px rgba(11,30,61,.06), 0 12px 32px rgba(11,30,61,.08);

  /* — тинты бейджей/чипов (вынесены из инлайнов demo_v3) — */
  --warn-soft: #fdf0d5;
  --ok-soft: #e4f5eb;
  --danger-soft: #fde2e0;
  --danger-border: #f3b9b5;

  /* — типографика (system fallback вместо Inter / JetBrains Mono) — */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', system-ui, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'JetBrains Mono', 'Cascadia Mono', Menlo, Consolas, monospace;

  /* — шкала отступов / радиусов (как в demo_v3) — */
  --radius-lg: 12px;
  --radius: 8px;
  --radius-sm: 6px;
  --radius-xs: 4px;

  --gradient-primary: linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{
  background:var(--bg);color:var(--text);
  font-family:var(--font-sans);font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  font-variant-numeric:tabular-nums;
}
body{display:flex;flex-direction:column;min-height:100vh}
main#app{flex:1 0 auto}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
::selection{background:var(--primary-soft);color:var(--primary-dark)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
h1,h2,h3,h4{letter-spacing:-.015em;line-height:1.2}

.container{max-width:1240px;margin:0 auto;padding:0 40px}

/* ---------- header / nav ---------- */
.nav{background:rgba(255,255,255,.85);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);padding:13px 0;position:sticky;top:0;z-index:50}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-logo{width:32px;height:32px;border-radius:8px;background:var(--gradient-primary);position:relative;flex-shrink:0;box-shadow:0 2px 6px rgba(0,82,204,.28)}
.brand-logo::before,.brand-logo::after{content:'';position:absolute;inset:7px;border:1.8px solid white;border-radius:3px}
.brand-logo::before{transform:rotate(15deg);opacity:.95}
.brand-logo::after{transform:rotate(-15deg);opacity:.55}
.brand-name{font-weight:600;font-size:14px;color:var(--text);letter-spacing:-.01em}
.brand-name span{color:var(--text-mute);font-weight:400;margin-left:6px}

.nav-links{display:flex;gap:4px;align-items:center}
.nav-link{padding:7px 14px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--text-sec);cursor:pointer;transition:background .15s,color .15s;text-decoration:none}
.nav-link:hover{background:var(--bg-soft);color:var(--primary);text-decoration:none}
.nav-link.active{background:var(--primary-soft);color:var(--primary);font-weight:600}

.stage-badge{display:inline-flex;align-items:center;gap:8px;padding:4px 10px;background:var(--primary-soft);color:var(--primary);border-radius:6px;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.05em}
.stage-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--primary)}

/* ---------- buttons ---------- */
.btn{padding:8px 16px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;font-family:inherit;line-height:1.2;cursor:pointer;border:1px solid var(--border);background:white;color:var(--text);transition:background .15s,border-color .15s,color .15s,box-shadow .15s,transform .1s;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}
.btn:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--primary-soft);border-color:var(--primary)}
.btn-primary{background:var(--primary);color:white;border-color:var(--primary);box-shadow:0 1px 2px rgba(0,82,204,.18)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:white;box-shadow:0 4px 12px rgba(0,82,204,.24)}
.btn-lg{padding:12px 20px;font-size:14px;border-radius:var(--radius)}
.btn-sm{padding:5px 11px;font-size:12px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:transparent;color:var(--text-sec);box-shadow:none}
.btn-ghost:hover{background:var(--bg-soft);color:var(--primary)}

/* ---------- layout / sections ---------- */
#app{min-height:60vh}
.section{padding:48px 0}
.section+.section{padding-top:8px}
.section-head{margin-bottom:28px;max-width:860px}
.section-eyebrow{color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;font-family:var(--font-mono)}
.section-h{font-size:28px;font-weight:700;letter-spacing:-.015em;line-height:1.2;margin-bottom:10px}
.section-lede{font-size:15px;color:var(--text-sec);line-height:1.6}
.row{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.grid-2{display:grid;grid-template-columns:1.3fr 1fr;gap:24px}
.grid-1{display:grid;gap:24px}
.spacer{flex:1}
.muted{color:var(--text-mute)}
.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-16{margin-bottom:16px}

/* ---------- cards ---------- */
.card{background:white;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:box-shadow .2s,border-color .2s}
.card:hover{box-shadow:var(--shadow-lg)}
.card-head{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:16px}
.card-title{font-size:14px;font-weight:600}
.card-body{padding:20px}
.card-soft-head{background:var(--bg-soft)}

/* ---------- badges ---------- */
.badge{padding:3px 9px;border-radius:var(--radius-xs);font-size:11px;font-weight:600;font-family:var(--font-mono);letter-spacing:.05em;line-height:1.4;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.badge-info{background:var(--primary-soft);color:var(--primary)}
.badge-warn{background:var(--warn-soft);color:var(--warning)}
.badge-ok{background:var(--ok-soft);color:var(--success)}
.badge-danger{background:var(--danger-soft);color:var(--danger)}
.badge-neutral{background:var(--bg-soft);color:var(--text-sec);border:1px solid var(--border)}
/* confidence-семантика как алиасы (high=ok / medium=warn / low=danger) */
.badge-conf-high{background:var(--ok-soft);color:var(--success)}
.badge-conf-medium{background:var(--warn-soft);color:var(--warning)}
.badge-conf-low{background:var(--danger-soft);color:var(--danger)}

/* ---------- confidence bar / chips ---------- */
.conf-bar{display:flex;gap:3px;min-width:90px}
.conf-seg{flex:1;height:5px;border-radius:2px;background:var(--border);transition:background .2s}
.conf-seg.on{background:var(--primary)}
.conf-seg.on.medium{background:var(--warning)}
.conf-seg.on.low{background:var(--warning)}

.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-xs);font-family:var(--font-mono);font-size:11px;color:var(--text-sec);transition:background .15s,border-color .15s,color .15s}
.chip.on{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.chip.off{color:var(--text-mute);text-decoration:line-through;background:transparent}

/* ---------- tables ---------- */
.table{width:100%;border-collapse:collapse;font-size:13px;background:white}
.table th{text-align:left;padding:10px 16px;background:var(--bg-soft);border-bottom:1px solid var(--border);font-weight:600;font-size:11px;color:var(--text-mute);text-transform:uppercase;letter-spacing:.04em}
.table th.num,.table td.num{text-align:right;font-family:var(--font-mono)}
.table td{padding:10px 16px;border-bottom:1px solid var(--border-soft)}
.table tbody tr:hover td{background:var(--bg-soft)}
.table tr.group-row:hover td{background:var(--primary-soft)}
.table tr.subtotal:hover td{background:var(--bg-tinted)}
.table tr.total:hover td{background:var(--text)}
.table tr.group-row td{background:var(--primary-soft);font-weight:600;color:var(--primary);text-transform:uppercase;font-size:11px;letter-spacing:.04em;padding:8px 16px;text-align:left}
.table tr.subtotal td{background:var(--bg-tinted);font-weight:600;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.table tr.total td{background:var(--text);color:white;font-weight:600;font-size:14px}
.table-wrap{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:12px;font-weight:500;color:var(--text-sec)}
.input,.select,.textarea{font-family:inherit;font-size:14px;padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:white;color:var(--text);width:100%;transition:.15s}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.textarea{min-height:120px;resize:vertical;font-family:var(--font-mono);font-size:12px;line-height:1.5}

/* ---------- dropzone ---------- */
.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:32px 20px;text-align:center;transition:.2s;cursor:pointer}
.dropzone:hover,.dropzone.drag{border-color:var(--primary);background:var(--primary-soft)}
.drop-icon{width:44px;height:44px;margin:0 auto 12px;border-radius:8px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px}
.drop-title{font-size:14px;font-weight:500;margin-bottom:4px}
.drop-sub{font-size:12px;color:var(--text-mute)}
.formats{display:flex;gap:6px;flex-wrap:wrap;margin-top:18px;justify-content:center}

/* ---------- range / kpi (result) ---------- */
.range{display:flex;align-items:baseline;gap:14px;margin-bottom:6px}
.range-val{font-size:48px;font-weight:700;letter-spacing:-.03em;color:var(--primary);font-variant-numeric:tabular-nums}
.range-dash{font-size:32px;color:var(--text-mute);font-weight:300}
.range-unit{font-size:16px;color:var(--text-sec);margin-left:8px}
.range-sub{font-family:var(--font-mono);font-size:12px;color:var(--text-sec);margin-bottom:22px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding-top:20px;border-top:1px solid var(--border)}
.kpi-val{font-size:18px;font-weight:700;margin-bottom:2px}
.kpi-key{font-size:11px;color:var(--text-mute);text-transform:uppercase;letter-spacing:.05em}
.result-lbl{font-size:11px;color:var(--text-mute);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px;font-family:var(--font-mono)}
.result-note{margin-top:16px;padding:12px 14px;background:var(--bg-tinted);border-radius:var(--radius-sm);font-size:12px;color:var(--primary-dark);display:flex;gap:10px;line-height:1.55}

/* ---------- red flags ---------- */
.flag-row{padding:12px 0;border-bottom:1px solid var(--border-soft);display:grid;grid-template-columns:26px 1fr;gap:12px}
.flag-row:last-child{border-bottom:none;padding-bottom:0}
.flag-row:first-child{padding-top:0}
.flag-ind{width:26px;height:26px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:10px;font-family:var(--font-mono)}
.flag-ind.high{background:var(--danger-soft);color:var(--danger)}
.flag-ind.medium,.flag-ind.med{background:var(--warn-soft);color:var(--warning)}
.flag-ind.low{background:var(--primary-soft);color:var(--primary)}
.flag-t{font-size:13px;font-weight:600;margin-bottom:2px}
.flag-d{font-size:12px;color:var(--text-sec);line-height:1.5}

/* ---------- audit rows ---------- */
.audit-row{display:grid;grid-template-columns:200px 1fr;gap:20px;padding:11px 0;border-bottom:1px solid var(--border-soft);align-items:start}
.audit-row:last-child{border-bottom:none}
.audit-k{font-family:var(--font-mono);font-size:11px;color:var(--text-mute);text-transform:uppercase;letter-spacing:.05em}
.audit-v{font-size:13px}
.audit-v code{font-family:var(--font-mono);font-size:12px;background:var(--bg-soft);padding:2px 7px;border-radius:3px;color:var(--primary);border:1px solid var(--border)}

/* ---------- states (loading / error / empty) ---------- */
.state{padding:48px 24px;text-align:center;color:var(--text-mute)}
.state-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px}
.state-sub{font-size:13px;max-width:480px;margin:0 auto 18px}
.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;margin:0 auto 16px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:13px;display:flex;gap:10px;align-items:flex-start;margin:12px 0}
.alert-danger{background:var(--danger-soft);color:var(--danger);border:1px solid var(--danger-border)}
.alert-info{background:var(--bg-tinted);color:var(--primary-dark);border:1px solid var(--border)}

/* ---------- footer ---------- */
.footer{padding:24px 0;border-top:1px solid var(--border);margin-top:56px;color:var(--text-mute);font-size:12px;font-family:var(--font-mono);letter-spacing:.03em}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}

@media (max-width:900px){
  .container{padding:0 20px}
  .grid-2{grid-template-columns:1fr}
  .nav-inner{flex-wrap:wrap;gap:12px}
}