:root{
    --brand:#AD3436; --brand-dk:#8f2a2c;
    --bg:#f4f4f6; --surface:#ffffff; --panel:#f7f7f9;
    --ink:#20242e; --ink2:#5b5f6b; --ink3:#8a8e9a; --bd:#e4e4ea;
    --ai:#1F4D78; --ai-bg:#eef2f7; --ai-bd:#c2d2e3; --ai-badge:#e8eff6;
    --warn:#b7791f; --warn-bg:#fff6e6; --warn-bd:#f0c97a;
    --ok:#1f9254; --ok-bg:#e8f6ee; --ok-bd:#a5dcb9;
    --radius:10px; --shadow:0 1px 2px rgba(20,24,40,.06),0 4px 16px rgba(20,24,40,.05);
    --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  }
  *{box-sizing:border-box}
  html,body{margin:0}
  body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
  .app{min-height:100vh;display:flex;flex-direction:column}

  .appbar{background:var(--brand);color:#fff;height:54px;display:flex;align-items:center;gap:20px;padding:0 22px;position:sticky;top:0;z-index:20}
  .brand{font-weight:800;font-size:16px;letter-spacing:.2px;display:flex;align-items:center;gap:11px}
  .brand .logo-chip{background:#fff;border-radius:6px;padding:4px 9px;display:inline-flex;align-items:center}
  .brand .logo-img{height:24px;display:block}
  .brand .product{font-weight:700;opacity:.97}
  .crumb{font-weight:600;font-size:13px;opacity:.92}
  .spacer{flex:1}
  .restart{color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:8px;padding:5px 11px;font:inherit;font-size:12px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:6px}
  .restart:hover{background:rgba(255,255,255,.24)}
  .user{font-weight:600;font-size:13px;opacity:.95}
  .demobar{background:#eef2f7;border-bottom:1px solid #c2d2e3;color:#1F4D78;font-weight:600;font-size:12.5px;padding:7px 22px;display:flex;align-items:center;gap:10px}
  .demotag{background:#1F4D78;color:#fff;border-radius:5px;padding:2px 8px;font-size:11px;font-weight:800;letter-spacing:.6px;flex:none}
  .demobar .edit-hint{margin-left:auto;color:#5b5f6b;font-weight:500;font-size:12px}

  .wrap{max-width:1120px;width:100%;margin:0 auto;padding:20px 24px 60px}
  .page-title{font-size:21px;font-weight:800;letter-spacing:-.01em;margin:6px 0 2px}

  .subnav{display:flex;gap:2px;border-bottom:2px solid #e6e6ec;margin:10px 0 6px}
  .subnav a{padding:10px 16px;font-weight:700;font-size:13.5px;color:var(--ink2);text-decoration:none;border-bottom:3px solid transparent;margin-bottom:-2px;cursor:pointer;user-select:none}
  .subnav a:hover{color:var(--ink)}
  .subnav a.active{color:var(--brand);border-bottom-color:var(--brand)}
  .subnav a .cnt{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-bd);border-radius:10px;font-size:11px;padding:0 7px;margin-left:7px;font-weight:800}
  .subnav a .cnt.zero{background:#eef0f3;color:var(--ink3);border-color:var(--bd)}

  .screen{display:none;animation:fade .25s ease}
  .screen.active{display:block}
  @keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

  .card{background:var(--surface);border:1px solid var(--bd);border-radius:var(--radius);box-shadow:var(--shadow);margin-top:16px;overflow:hidden}
  .card-head{padding:13px 18px;border-bottom:1px solid var(--bd);font-weight:800;font-size:14.5px;display:flex;align-items:center;gap:9px}
  .card-body{padding:18px}
  .muted{opacity:.62}
  .ai-head{background:var(--ai-bg);border-bottom-color:var(--ai-bd)}
  .ai-title{color:var(--ai)}

  .frow{display:grid;grid-template-columns:1fr 1fr;gap:16px 26px}
  .field{display:grid;grid-template-columns:128px 1fr;align-items:center;gap:10px;margin-bottom:2px}
  .field.col{grid-column:1 / -1;align-items:start}
  label.lbl{font-weight:600;color:var(--ink2);font-size:13px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
  label.lbl .req{color:var(--brand)}
  .inp{width:100%;border:1px solid #ced2da;border-radius:7px;padding:8px 11px;font:inherit;font-size:13.5px;color:var(--ink);background:#fff}
  .inp:focus{outline:2px solid #9db4ff;outline-offset:0;border-color:#9db4ff}
  textarea.inp{resize:vertical;min-height:38px}
  select.inp{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235b5f6b' stroke-width='2.5'><path d='M6 9l6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right 10px center;padding-right:30px}
  .inp.ai{background:var(--ai-bg);border-left:3px solid var(--ai)}
  .inp.review{background:var(--warn-bg);border-left:3px solid var(--warn-bd)}
  .badge-ai{display:inline-flex;align-items:center;gap:3px;font-size:10.5px;font-weight:800;color:var(--ai);background:var(--ai-badge);border:1px solid var(--ai-bd);border-radius:9px;padding:0 7px}
  .badge-ai svg{width:11px;height:11px}
  .review-note{font-size:12px;color:var(--warn);font-weight:600;margin-top:5px;display:flex;align-items:center;gap:5px}
  .review-note svg{width:14px;height:14px}

  .dropzone{border:2px dashed var(--ai-bd);background:var(--ai-bg);border-radius:12px;padding:32px 22px;text-align:center;transition:border-color .15s,background .15s;cursor:pointer}
  .dropzone:hover{border-color:var(--ai);background:#e6edf5}
  .dz-ic{width:42px;height:42px;color:var(--ai);margin:0 auto}
  .dropzone h3{margin:12px 0 4px;font-size:17px;font-weight:800}
  .dropzone p{margin:0 auto;max-width:520px;font-size:13.5px;color:var(--ink2);font-weight:500}
  .accepts{margin-top:10px;font-size:12px;color:var(--ink3)}
  .or{text-align:center;color:var(--ink3);font-weight:700;font-size:12px;letter-spacing:.4px;margin:16px 0 2px;text-transform:uppercase}

  .btn{border:0;border-radius:8px;padding:9px 16px;font:inherit;font-weight:700;font-size:13.5px;cursor:pointer;display:inline-flex;align-items:center;gap:7px}
  .btn:disabled{opacity:.45;cursor:not-allowed}
  .btn-ai{background:var(--ai);color:#fff}
  .btn-ai:hover:not(:disabled){background:#163a5c}
  .btn-brand{background:var(--brand);color:#fff}
  .btn-brand:hover:not(:disabled){background:var(--brand-dk)}
  .btn-ghost{background:#fff;color:var(--ink);border:1px solid #d0d0d8}
  .btn-ghost:hover{background:#f6f6f8}
  .actions{display:flex;gap:12px;align-items:center;margin-top:18px;flex-wrap:wrap}
  .hint{color:var(--ink3);font-size:12.5px;font-weight:600}

  /* email view */
  .mailbar{display:flex;align-items:center;gap:9px;background:var(--ai-bg);border:1px solid var(--ai-bd);border-radius:11px;padding:12px 16px;margin-top:16px;font-weight:600;font-size:13px;color:var(--ink2)}
  .mailbar svg{width:19px;height:19px;color:var(--ai);flex:none}
  .mailbar b{color:var(--ink)}
  .mailhead{display:grid;grid-template-columns:64px 1fr;gap:5px 12px;font-size:13px}
  .mailhead .k{color:var(--ink3);font-weight:600}
  .mailhead .v{color:var(--ink);font-weight:600}
  .mailhead .subj{font-weight:800;font-size:15px;margin-top:2px}
  .chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}
  .chip{display:inline-flex;align-items:center;gap:7px;background:var(--panel);border:1px solid var(--bd);border-radius:8px;padding:6px 11px;font-size:12.5px;font-weight:600}
  .chip svg{width:15px;height:15px;color:var(--brand)}
  .mailbody{white-space:pre-wrap;font-size:13px;line-height:1.62;color:#33373f;border-top:1px solid var(--bd);margin-top:14px;padding-top:14px}
  .sig{color:var(--ink3);font-size:12px;margin-top:2px}

  .proc{text-align:center;padding:26px 20px}
  .ring{width:46px;height:46px;border:4px solid var(--ai-bg);border-top-color:var(--ai);border-radius:50%;margin:0 auto 14px;animation:spin 1s linear infinite}
  @keyframes spin{to{transform:rotate(360deg)}}
  .proc h3{font-size:18px;font-weight:800;margin:0 0 6px}
  .proc p{font-size:13.5px;color:var(--ink2);font-weight:500;margin:0 auto;max-width:520px}
  .steps{display:flex;justify-content:center;gap:24px;margin-top:20px;font-size:13px;font-weight:600;flex-wrap:wrap}
  .steps .s{display:flex;align-items:center;gap:7px;color:var(--ink3)}
  .steps .s.done{color:var(--ok)}
  .steps .s.active{color:var(--ai)}
  .steps .s svg{width:16px;height:16px}
  .bar{height:8px;background:var(--ai-bg);border-radius:5px;margin:22px auto 0;max-width:480px;overflow:hidden}
  .bar>span{display:block;height:100%;width:8%;background:var(--ai);border-radius:5px;transition:width .3s ease}

  .ai-banner{display:flex;align-items:center;gap:13px;background:var(--ai-bg);border:1px solid var(--ai-bd);border-radius:11px;padding:13px 17px;margin-top:16px}
  .ai-banner .ic{width:24px;height:24px;color:var(--ai);flex:none}
  .ai-banner .tx{font-weight:700;font-size:14px}
  .ai-banner .tx small{display:block;font-weight:500;color:var(--ink2);font-size:12.5px;margin-top:2px}
  .ai-banner .legend{margin-left:auto;display:flex;gap:16px;font-size:12px;font-weight:600;flex-wrap:wrap}
  .sw{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}

  table{width:100%;border-collapse:collapse;font-size:13.5px}
  .cov th{text-align:left;font-weight:700;color:var(--ink2);border-bottom:2px solid #ececf1;padding:10px 12px;font-size:12.5px}
  .cov td{padding:10px 12px;border-bottom:1px solid #f0f0f4;font-weight:600}
  .cov tr.ai-row td:first-child{box-shadow:inset 3px 0 0 var(--ai);background:var(--ai-bg)}
  .cov td.ec{cursor:text}
  .cov td.ec:hover{background:#f2f6fb}
  .cov td.ec:focus{outline:2px solid var(--ai-bd);outline-offset:-2px;background:#fff;border-radius:4px}
  .repeat-tag{font-size:11px;font-weight:800;color:#7a5b12;background:#fdf3d8;border:1px solid var(--warn-bd);border-radius:9px;padding:1px 8px;margin-left:8px}

  .attach td{padding:9px 12px;border-bottom:1px solid #f0f0f4;vertical-align:middle;font-weight:600}
  .attach td.file svg{width:18px;height:18px;color:var(--ai);margin-right:8px;vertical-align:-4px}
  .attach td.sz{color:var(--ink3);font-weight:500;text-align:right;white-space:nowrap}
  .savenote{font-size:12px;color:var(--ink2);font-weight:500;margin-top:11px;display:flex;align-items:center;gap:6px}
  .savenote svg{width:15px;height:15px}

  .dft td{padding:13px 12px;border-bottom:1px solid #f0f0f4;font-weight:600;vertical-align:middle}
  .dft th{text-align:left;font-weight:700;color:var(--ink2);border-bottom:2px solid #ececf1;padding:10px 12px;font-size:12.5px}
  .dft tr.new{animation:flash 1.2s ease}
  @keyframes flash{0%{background:#fff9e9}100%{background:transparent}}
  .subj{display:flex;align-items:center;gap:8px;font-weight:700}
  .subj svg{width:16px;height:16px;color:var(--ai)}
  .dft small{display:block;color:var(--ink3);font-weight:500;margin-top:3px;margin-left:24px}
  .pending{color:#bcbcc6}
  .pill{display:inline-flex;align-items:center;gap:7px;font-weight:800;font-size:12px;border-radius:20px;padding:5px 12px;white-space:nowrap}
  .pill.proc{background:var(--warn-bg);color:var(--warn);border:1px solid var(--warn-bd)}
  .pill.ready{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-bd)}
  .pill svg{width:13px;height:13px}
  .pill .miniring{width:12px;height:12px;border:2px solid var(--warn-bd);border-top-color:var(--warn);border-radius:50%;animation:spin 1s linear infinite}
  .rev{color:var(--brand);font-weight:800;text-decoration:none;cursor:pointer;white-space:nowrap}
  .disc{color:var(--ink3);font-weight:600;cursor:pointer;margin-left:14px;font-size:12.5px}
  .empty{color:var(--ink3);text-align:center;padding:34px;font-weight:600}

  .done{text-align:center;padding:36px 20px}
  .done .big{width:64px;height:64px;color:var(--ok);margin:0 auto 8px}
  .done h2{font-size:22px;font-weight:800;margin:6px 0}
  .done .num{font-size:15px;color:var(--ink2);font-weight:600}
  .done p{color:var(--ink2);max-width:480px;margin:10px auto 0;font-weight:500}

  .toast-host{position:fixed;right:20px;bottom:20px;display:flex;flex-direction:column;gap:10px;z-index:50}
  .toast{background:#fff;border:1px solid var(--bd);border-left:4px solid var(--ai);border-radius:10px;box-shadow:0 8px 28px rgba(20,24,40,.16);padding:12px 15px;min-width:250px;max-width:340px;display:flex;gap:11px;align-items:flex-start;animation:slidein .3s ease}
  .toast.ok{border-left-color:var(--ok)}
  .toast svg{width:18px;height:18px;flex:none;margin-top:1px;color:var(--ai)}
  .toast.ok svg{color:var(--ok)}
  .toast b{font-size:13.5px}
  .toast small{display:block;color:var(--ink2);font-weight:500;font-size:12.5px;margin-top:2px}
  @keyframes slidein{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:none}}

  .demo-note{font-size:12px;color:var(--ink3);font-weight:500;text-align:center;margin-top:26px}
  @media (max-width:720px){ .frow{grid-template-columns:1fr} .field{grid-template-columns:1fr} }
  @media (prefers-reduced-motion:reduce){ *{animation:none !important;transition:none !important} }