:root{
    --paper:#F6F3E9; --paper-line:#D8DFC9; --card:#FFFEFA;
    --ink:#20301F; --ink-soft:#5B6B54;
    --green:#2F6F4E; --green-dark:#1F4E37;
    --gold:#C1862B; --gold-soft:#F1E1BE;
    --red:#AD4A38; --red-soft:#F6E3DD;
    --line:#CBD5C0;
    --shadow: 0 1px 2px rgba(32,48,31,.06), 0 8px 24px rgba(32,48,31,.08);
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    background:var(--paper);
    background-image: repeating-linear-gradient(180deg, transparent, transparent 27px, var(--paper-line) 28px);
    color:var(--ink); font-family:'Inter',system-ui,sans-serif;
    -webkit-font-smoothing:antialiased; min-height:100vh; padding-bottom:90px;
  }
  h1,h2,h3{font-family:'Fraunces',serif; letter-spacing:-0.01em; color:var(--ink); margin:0;}
  .mono{font-family:'IBM Plex Mono',monospace; font-variant-numeric:tabular-nums;}

  .shell{max-width:960px;margin:0 auto;padding:20px 16px 40px;}
  header.hero{padding:28px 4px 20px;border-bottom:2px solid var(--ink);margin-bottom:22px;display:flex;flex-direction:column;gap:6px;}
  .eyebrow{font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--green-dark);font-weight:600;}
  header.hero h1{font-size:clamp(26px,5vw,38px);font-weight:600;line-height:1.05;}
  header.hero p{margin:6px 0 0;color:var(--ink-soft);font-size:15px;max-width:62ch;line-height:1.5;}

  .stepper{display:flex;gap:6px;flex-wrap:wrap;padding-bottom:4px;margin-bottom:20px;}
  .step-tab{flex:0 0 auto;font-family:'IBM Plex Mono',monospace;font-size:12.5px;font-weight:500;padding:8px 12px;border:1.5px solid var(--line);border-radius:3px;background:var(--card);color:var(--ink-soft);cursor:pointer;white-space:nowrap;transition:all .15s ease;}
  .step-tab .n{color:var(--gold);margin-right:6px;font-weight:600;}
  .step-tab.active{border-color:var(--green);background:var(--green);color:#fff;}
  .step-tab.active .n{color:var(--gold-soft);}

  .card{background:var(--card);border:1.5px solid var(--ink);border-radius:6px;box-shadow:var(--shadow);padding:24px 22px;margin-bottom:18px;}
  .card h2{font-size:22px;font-weight:600;margin-bottom:4px;}
  .card .subt{color:var(--ink-soft);font-size:14.5px;line-height:1.55;margin-bottom:18px;max-width:66ch;}

  .field-group{margin-bottom:22px;}
  .field-group-title{font-family:'IBM Plex Mono',monospace;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--green-dark);font-weight:600;border-bottom:1px solid var(--line);padding-bottom:6px;margin-bottom:12px;}
  .row{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line);}
  .row:last-child{border-bottom:none;}
  .row .lab{flex:1;min-width:0;}
  .row .lab .t{font-size:14.5px;font-weight:500;}
  .row .lab .h{font-size:12.5px;color:var(--ink-soft);line-height:1.4;margin-top:2px;}
  .row .iva-tag{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--gold);border:1px solid var(--gold);border-radius:3px;padding:1px 5px;margin-left:6px;white-space:nowrap;}
  .amt-wrap{position:relative;flex:0 0 150px;}
  .amt-wrap input{width:100%;padding:8px 26px 8px 10px;border:1.5px solid var(--line);border-radius:4px;font-family:'IBM Plex Mono',monospace;font-size:14px;text-align:right;background:#fff;color:var(--ink);}
  .amt-wrap input:focus{outline:none;border-color:var(--green);}
  .amt-wrap::after{content:'€';position:absolute;right:9px;top:9px;color:var(--ink-soft);font-size:13px;pointer-events:none;}
  input[type=text].free, textarea.free{padding:9px 10px;border:1.5px solid var(--line);border-radius:4px;font-size:14px;font-family:'Inter';width:100%;background:#fff;}
  input[type=text].free:focus, textarea.free:focus{outline:none;border-color:var(--green);}
  textarea.free{min-height:84px;resize:vertical;line-height:1.5;}

  .tip{background:var(--gold-soft);border:1px solid var(--gold);border-radius:5px;padding:12px 14px;font-size:13.5px;color:#5A4318;line-height:1.5;margin-bottom:18px;}
  .tip b{color:#4A3712;}
  .alert{background:var(--red-soft);border:1px solid var(--red);border-radius:5px;padding:12px 14px;font-size:13.5px;color:#6B2A1D;line-height:1.5;margin-bottom:12px;}
  .alert b{color:#5A2114;}
  .okbox{background:#E4EEE3;border:1px solid var(--green);border-radius:5px;padding:12px 14px;font-size:13.5px;color:var(--green-dark);line-height:1.5;margin-bottom:12px;}

  .sugg-box{border:1.5px dashed var(--green);border-radius:6px;background:#FBFAF3;padding:14px 16px;margin-bottom:18px;}
  .sugg-box .sb-title{font-family:'IBM Plex Mono',monospace;font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--green-dark);font-weight:600;margin-bottom:8px;}
  .sugg-box ul{margin:0;padding-left:18px;}
  .sugg-box li{font-size:13.5px;line-height:1.55;margin-bottom:6px;color:var(--ink);}
  .sugg-box li b{color:var(--green-dark);}

  .btn{font-family:'Inter';font-weight:600;font-size:14px;cursor:pointer;border-radius:5px;padding:10px 16px;border:1.5px solid var(--ink);background:var(--ink);color:#fff;transition:transform .1s ease;}
  .btn:hover{transform:translateY(-1px);}
  .btn:disabled{opacity:.5;cursor:wait;transform:none;}
  .btn.secondary{background:transparent;color:var(--ink);}
  .btn.green{background:var(--green);border-color:var(--green);}
  .btn.ghost{background:transparent;color:var(--green-dark);border-color:var(--line);font-size:13px;padding:7px 12px;}
  .btn.small{padding:6px 10px;font-size:12.5px;}
  .nav-buttons{display:flex;justify-content:space-between;margin-top:6px;}

  .chips{display:flex;flex-wrap:wrap;gap:8px;}
  .chip{border:1.5px solid var(--line);border-radius:20px;padding:7px 14px;font-size:13.5px;background:#fff;cursor:pointer;color:var(--ink-soft);}
  .chip.on{background:var(--green);border-color:var(--green);color:#fff;font-weight:600;}

  .summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:22px;}
  .sumcard{border:1.5px solid var(--ink);border-radius:5px;padding:12px;background:#FBFAF3;}
  .sumcard .k{font-family:'IBM Plex Mono';font-size:11px;text-transform:uppercase;color:var(--ink-soft);letter-spacing:.05em;}
  .sumcard .v{font-family:'IBM Plex Mono';font-size:20px;font-weight:600;color:var(--green-dark);margin-top:3px;}
  .sumcard.warn .v{color:var(--red);}

  table.cash{width:100%;border-collapse:collapse;font-size:12.5px;margin:8px 0 16px;}
  table.cash th{font-family:'IBM Plex Mono';font-size:10.5px;text-transform:uppercase;color:var(--ink-soft);border-bottom:1.5px solid var(--ink);padding:4px 5px;text-align:right;}
  table.cash th:first-child, table.cash td:first-child{text-align:left;}
  table.cash td{font-family:'IBM Plex Mono';padding:4px 5px;text-align:right;border-bottom:1px dashed var(--line);white-space:nowrap;}
  table.cash td.neg{color:var(--red);font-weight:600;background:var(--red-soft);}
  .cash-scroll{overflow-x:auto;}

  textarea.export-box{width:100%;min-height:200px;font-family:'IBM Plex Mono';font-size:12px;padding:12px;border:1.5px solid var(--ink);border-radius:5px;background:#FBFAF3;color:var(--ink);resize:vertical;}

  .chat-fab{position:fixed;right:18px;bottom:18px;z-index:40;background:var(--green);color:#fff;border:none;border-radius:50px;padding:13px 18px;font-family:'Inter';font-weight:600;font-size:14px;box-shadow:0 6px 18px rgba(31,78,55,.35);cursor:pointer;display:flex;align-items:center;gap:8px;}
  .chat-fab:hover{background:var(--green-dark);}
  .chat-panel{position:fixed;right:0;top:0;bottom:0;width:min(380px,100vw);background:var(--card);border-left:2px solid var(--ink);z-index:50;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .25s ease;box-shadow:-8px 0 24px rgba(0,0,0,.15);}
  .chat-panel.open{transform:translateX(0);}
  .chat-head{padding:16px;border-bottom:1.5px solid var(--ink);display:flex;justify-content:space-between;align-items:center;background:var(--green);color:#fff;}
  .chat-head h3{color:#fff;font-size:16px;}
  .chat-head .close{cursor:pointer;font-size:20px;line-height:1;background:none;border:none;color:#fff;}
  .chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;}
  .msg{max-width:88%;padding:9px 12px;border-radius:8px;font-size:13.5px;line-height:1.5;}
  .msg.user{align-self:flex-end;background:var(--ink);color:#fff;border-bottom-right-radius:2px;}
  .msg.bot{align-self:flex-start;background:var(--gold-soft);color:#3E2F0E;border-bottom-left-radius:2px;white-space:pre-wrap;}
  .msg.bot.loading{color:var(--ink-soft);font-style:italic;}
  .chat-foot{padding:12px;border-top:1.5px solid var(--line);display:flex;gap:8px;}
  .chat-foot textarea{flex:1;resize:none;border:1.5px solid var(--line);border-radius:6px;padding:9px 10px;font-family:'Inter';font-size:13.5px;min-height:40px;max-height:100px;}
  .chat-foot textarea:focus{outline:none;border-color:var(--green);}
  .chat-foot button{border:none;background:var(--green);color:#fff;border-radius:6px;padding:0 14px;font-weight:600;cursor:pointer;}
  .chat-suggestions{padding:0 14px 10px;display:flex;flex-wrap:wrap;gap:6px;}
  .chat-suggestions button{font-size:11.5px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:5px 10px;cursor:pointer;color:var(--ink-soft);}
  .overlay{position:fixed;inset:0;background:rgba(32,48,31,.25);z-index:45;display:none;}
  .overlay.open{display:block;}
  .access-gate{position:fixed;inset:0;z-index:100;background:var(--paper);background-image:repeating-linear-gradient(180deg,transparent,transparent 27px,var(--paper-line) 28px);display:flex;align-items:center;justify-content:center;padding:20px;}
  .access-gate.hidden{display:none;}
  .access-card{width:min(440px,100%);background:var(--card);border:1.5px solid var(--ink);border-radius:6px;box-shadow:var(--shadow);padding:26px 24px;}
  .access-card h2{font-size:25px;margin:5px 0 8px;}
  .access-card p{font-size:14px;line-height:1.55;color:var(--ink-soft);}
  .access-card form{display:flex;gap:8px;margin-top:16px;}
  .access-card input{flex:1;min-width:0;padding:10px;border:1.5px solid var(--line);border-radius:5px;font-family:'IBM Plex Mono';font-size:15px;}
  .access-card input:focus{outline:none;border-color:var(--green);}
  .access-error{margin-top:10px;color:var(--red);font-size:13px;min-height:19px;}

  @media (max-width:560px){
    .row{flex-wrap:wrap;}
    .amt-wrap{flex:1 0 100%;}
    .chat-panel{width:100vw;}
    .access-card form{flex-direction:column;}
  }