:root{
    --cover:#7A2E2E;
    --cover-dark:#4E1E1E;
    --paper:#F6F0E3;
    --paper-line:#E4D6BA;
    --card:#FFFCF5;
    --ink:#241F1A;
    --ink-soft:#7A6E5C;
    --gold:#B8862E;
    --gold-light:#D9B65C;
    --paid:#3F6B4C;
    --overdue:#A6392A;
    --pending:#A8792F;
    --font-display:'Fraunces', serif;
    --font-body:'IBM Plex Sans', sans-serif;
    --font-mono:'IBM Plex Mono', monospace;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    font-family:var(--font-body);
    color:var(--ink);
    background:var(--paper);
    background-image:repeating-linear-gradient(to bottom, transparent 0 37px, var(--paper-line) 37px 38px);
    min-height:100vh;
  }
  a{color:inherit;}
  button{font-family:inherit;cursor:pointer;}
  input,select{font-family:inherit;}
  .wrap{max-width:1000px;margin:0 auto;padding:0 18px 60px;}

  /* Header */
  .header{
    background:linear-gradient(135deg,var(--cover),var(--cover-dark));
    color:var(--paper);
    padding:30px 18px 46px;
    border-bottom:6px solid var(--gold);
    position:relative;
  }
  .header-inner{max-width:1000px;margin:0 auto;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;}
  .brand h1{
    font-family:var(--font-display);
    font-weight:700;
    font-size:32px;
    margin:0 0 4px;
    letter-spacing:0.3px;
  }
  .brand p{
    margin:0;
    color:var(--gold-light);
    font-size:12.5px;
    letter-spacing:1.4px;
    text-transform:uppercase;
    font-weight:500;
  }
  .header-actions{display:flex;gap:10px;flex-wrap:wrap;}
  .btn{
    border:none;border-radius:5px;padding:10px 16px;font-size:14px;font-weight:600;
    transition:transform .12s ease, box-shadow .12s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-gold{background:var(--gold);color:var(--cover-dark);}
  .btn-gold:hover{background:var(--gold-light);}
  .btn-ghost{background:transparent;color:var(--paper);border:1.5px solid rgba(246,240,227,0.55);}
  .btn-ghost:hover{border-color:var(--paper);}
  .btn-outline{background:transparent;border:1.5px solid var(--cover);color:var(--cover);}
  .btn-outline:hover{background:rgba(122,46,46,0.06);}
  .btn-text{background:none;border:none;color:var(--ink-soft);font-size:13px;text-decoration:underline;padding:4px;}
  .btn-small{padding:6px 11px;font-size:12.5px;border-radius:4px;}

  /* Stats */
  .stats{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
    gap:12px;margin-top:-26px;margin-bottom:26px;
  }
  .stat-card{
    background:var(--card);
    border-top:4px solid var(--gold);
    border-radius:5px 5px 9px 9px;
    box-shadow:0 2px 6px rgba(35,20,10,0.12);
    padding:13px 14px;
    transition:box-shadow .15s ease, transform .15s ease;
  }
  .stat-card:hover{box-shadow:0 5px 14px rgba(35,20,10,0.18);transform:translateY(-2px);}
  .stat-card.c-overdue{border-top-color:var(--overdue);}
  .stat-card.c-paid{border-top-color:var(--paid);}
  .stat-card .num{font-family:var(--font-mono);font-weight:700;font-size:23px;display:block;line-height:1.15;}
  .stat-card .lbl{font-size:10.5px;letter-spacing:1px;text-transform:uppercase;color:var(--ink-soft);font-weight:600;}

  /* Controls */
  .controls{
    display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
    margin-bottom:16px;
  }
  .tabs{display:flex;gap:4px;}
  .tab{
    background:none;border:none;padding:8px 14px;font-size:13.5px;font-weight:600;color:var(--ink-soft);
    border-bottom:3px solid transparent;
  }
  .tab.active{color:var(--cover);border-bottom-color:var(--gold);}
  .search-sort{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
  .ledger-input{
    border:none;border-bottom:1.5px solid var(--paper-line);background:transparent;
    padding:7px 2px;font-size:13.5px;color:var(--ink);outline:none;
  }
  .ledger-input:focus{border-bottom-color:var(--gold);}
  select.ledger-input{padding:7px 4px;}

  /* Empty state */
  .empty{
    text-align:center;padding:60px 20px;color:var(--ink-soft);
  }
  .empty h3{font-family:var(--font-display);color:var(--ink);font-size:22px;margin-bottom:6px;}

  /* Record card */
  .rcard{
    background:var(--card);
    border-left:5px solid var(--cover);
    border-radius:4px;
    padding:16px 18px;
    margin-bottom:13px;
    box-shadow:0 1px 4px rgba(35,20,10,0.10);
    position:relative;
    transition:box-shadow .15s ease, transform .15s ease;
  }
  .rcard:hover{box-shadow:0 4px 14px rgba(35,20,10,0.16);transform:translateY(-1px);}
  .rcard.st-overdue{border-left-color:var(--overdue);}
  .rcard.st-closed{border-left-color:var(--paid);opacity:0.88;}
  .rcard-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;flex-wrap:wrap;}
  .rcard-name{font-family:var(--font-display);font-weight:700;font-size:19px;margin:0;}
  .rcard-sub{font-size:12.5px;color:var(--ink-soft);margin-top:2px;}
  .stamp{
    font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
    border:2px solid var(--pending);color:var(--pending);border-radius:4px;padding:3px 9px;
    transform:rotate(-6deg);white-space:nowrap;
  }
  .stamp.st-overdue{border-color:var(--overdue);color:var(--overdue);}
  .stamp.st-closed{border-color:var(--paid);color:var(--paid);}
  .amounts{display:flex;gap:26px;flex-wrap:wrap;margin:14px 0 10px;}
  .amt-item .lbl{font-size:10px;text-transform:uppercase;letter-spacing:0.8px;color:var(--ink-soft);font-weight:600;display:block;margin-bottom:2px;}
  .amt-item .val{font-family:var(--font-mono);font-weight:600;font-size:15px;}
  .chip{
    display:inline-block;font-size:11px;font-weight:700;color:#fff;border-radius:20px;padding:2px 9px;
    font-family:var(--font-body);
  }
  .chip.ok{background:var(--paid);}
  .chip.soon{background:var(--pending);}
  .chip.over{background:var(--overdue);}
  .chip.closed{background:var(--ink-soft);}
  .rcard-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px;}

  /* Installment panel */
  .inst-panel{margin-top:14px;padding-top:12px;border-top:1px dashed var(--paper-line);}
  .inst-grid{max-height:280px;overflow-y:auto;}
  .inst-row{
    display:grid;grid-template-columns:34px 1fr 90px 100px 110px 100px;
    gap:8px;align-items:center;padding:6px 4px;font-size:12.5px;border-bottom:1px solid var(--paper-line);
  }
  .inst-row.head{font-weight:700;color:var(--ink-soft);font-size:10.5px;text-transform:uppercase;letter-spacing:0.5px;border-bottom:1.5px solid var(--gold-light);}
  .inst-row .n{font-family:var(--font-mono);color:var(--ink-soft);}
  .inst-row .amt{font-family:var(--font-mono);}
  .tag{font-size:11px;font-weight:700;padding:2px 7px;border-radius:3px;display:inline-block;}
  .tag.pending{background:#F0E4C8;color:var(--pending);}
  .tag.paid{background:#DCEBDF;color:var(--paid);}
  .tag.overdue{background:#F3D9D3;color:var(--overdue);}
  .section-label{font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--gold);font-weight:700;margin:12px 0 6px;}
  .principal-summary{font-size:12.5px;color:var(--ink-soft);margin-bottom:4px;}
  .principal-summary b{color:var(--ink);font-family:var(--font-mono);font-weight:600;}
  .pp-table .pp-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:5px 4px;font-size:12px;border-bottom:1px solid var(--paper-line);}
  .pp-table .pp-row.head{font-weight:700;color:var(--ink-soft);text-transform:uppercase;font-size:10px;letter-spacing:.5px;}
  .pp-table .pp-row .amt{font-family:var(--font-mono);}
  .rcard.partner-card{border-left-color:var(--gold);}

  /* Modal */
  .overlay{
    position:fixed;inset:0;background:rgba(30,20,12,0.55);display:none;align-items:center;justify-content:center;
    padding:20px;z-index:50;overflow-y:auto;
  }
  .overlay.show{display:flex;}
  .modal{
    background:var(--paper);border-top:6px solid var(--gold);border-radius:4px;max-width:560px;width:100%;
    padding:26px 26px 22px;max-height:90vh;overflow-y:auto;box-shadow:0 12px 40px rgba(0,0,0,0.3);
  }
  .modal h2{font-family:var(--font-display);margin:0 0 18px;font-size:22px;}
  fieldset{border:none;padding:0;margin:0 0 16px;}
  legend{
    font-size:11px;text-transform:uppercase;letter-spacing:1.2px;color:var(--gold);font-weight:700;
    margin-bottom:8px;padding:0;
  }
  .field-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:12px;}
  .field{flex:1;min-width:140px;}
  .field label{display:block;font-size:12px;color:var(--ink-soft);margin-bottom:4px;font-weight:500;}
  .field input,.field select{
    width:100%;border:none;border-bottom:1.5px solid var(--paper-line);background:transparent;
    padding:7px 2px;font-size:14px;color:var(--ink);outline:none;
  }
  .field input:focus,.field select:focus{border-bottom-color:var(--gold);}
  .field .hint{font-size:10.5px;color:var(--ink-soft);margin-top:3px;}
  .checkline{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:13.5px;}
  .modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px;}
  .err{color:var(--overdue);font-size:12.5px;margin-bottom:10px;min-height:16px;}
  .preview-line{font-size:12.5px;color:var(--ink-soft);background:rgba(184,134,46,0.09);padding:8px 10px;border-radius:4px;margin-bottom:12px;font-family:var(--font-mono);}
  .hidden{display:none !important;}

  /* Toast */
  #toast{
    position:fixed;bottom:20px;left:50%;transform:translateX(-50%);
    background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:5px;font-size:13.5px;
    box-shadow:0 4px 14px rgba(0,0,0,0.25);z-index:80;opacity:0;transition:opacity .25s ease;pointer-events:none;
  }
  #toast.show{opacity:1;}
  #toast.error{background:var(--overdue);}

  .footer-note{text-align:center;color:var(--ink-soft);font-size:11.5px;margin-top:30px;line-height:1.6;}

  /* Login screen */
  #loginScreen{
    min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
    background:linear-gradient(135deg,var(--cover),var(--cover-dark));
  }
  #loginScreen.hidden{display:none;}
  .login-box{
    background:var(--paper);border-top:6px solid var(--gold);border-radius:6px;
    max-width:380px;width:100%;padding:34px 30px 30px;box-shadow:0 16px 50px rgba(0,0,0,0.35);
  }
  .login-title{font-family:var(--font-display);font-size:30px;margin:0 0 2px;text-align:center;}
  .login-sub{text-align:center;color:var(--gold);font-size:11px;letter-spacing:1.6px;text-transform:uppercase;font-weight:700;margin:0 0 24px;}

  .user-chip{
    align-self:center;font-size:12.5px;color:var(--gold-light);font-weight:600;
    padding:4px 10px;border:1px solid rgba(217,182,92,0.4);border-radius:20px;white-space:nowrap;
  }
  .lang-toggle{font-weight:700;}
  .owner-only.hidden-role, .partner-only.hidden-role{display:none !important;}

  /* Approvals */
  .approval-row{
    display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;
    padding:10px 4px;border-bottom:1px solid var(--paper-line);font-size:13px;
  }
  .approval-row .who{font-weight:600;}
  .approval-row .meta{color:var(--ink-soft);font-size:12px;}
  .approval-actions{display:flex;gap:8px;}

  /* Mobile */
  @media (max-width:640px){
    .brand h1{font-size:24px;}
    .header{padding:20px 14px 40px;}
    .header-actions{width:100%;justify-content:flex-start;}
    .btn{padding:9px 13px;font-size:13px;}
    .stats{grid-template-columns:repeat(2,1fr);gap:9px;}
    .stat-card .num{font-size:19px;}
    .amounts{gap:16px;}
    .controls{flex-direction:column;align-items:stretch;}
    .search-sort{width:100%;}
    .search-sort .ledger-input{flex:1;min-width:0;}
    .rcard{padding:13px 13px;}
    .rcard-actions .btn{padding:7px 10px;font-size:12px;}
    .modal{padding:20px 16px 16px;}
    .field-row{gap:10px;}
    .field{min-width:120px;}
    .wrap{padding:0 12px 50px;}
  }

  @media (max-width:560px){
    .inst-row{grid-template-columns:24px 1fr 72px 92px;}
    .inst-row.head .paiddate, .inst-row .paiddate{display:none;}
    .inst-row .action{grid-column:1 / -1;justify-self:end;margin-top:2px;}
    .inst-row.head .action{display:none;}
    .rcard-name{font-size:17px;}
  }

/* ---------- Navigation (multi-page) ---------- */
.nav{
  background:var(--cover-dark);
  border-bottom:1px solid rgba(217,182,92,0.25);
}
.nav-inner{max-width:1000px;margin:0 auto;display:flex;gap:2px;overflow-x:auto;padding:0 18px;}
.nav a{
  color:rgba(246,240,227,0.75);text-decoration:none;font-size:13.5px;font-weight:600;
  padding:12px 15px;border-bottom:3px solid transparent;white-space:nowrap;
  transition:color .15s ease, border-color .15s ease;
}
.nav a:hover{color:var(--paper);}
.nav a.active{color:var(--gold-light);border-bottom-color:var(--gold);}

.page-title{font-family:var(--font-display);font-size:24px;margin:26px 0 4px;}
.page-sub{color:var(--ink-soft);font-size:13px;margin:0 0 20px;}

.form-card{
  background:var(--card);border-top:4px solid var(--gold);border-radius:5px;
  box-shadow:0 2px 6px rgba(35,20,10,0.12);padding:20px 20px 16px;margin-bottom:20px;
}
.ptable{width:100%;}
.ptable .prow{
  display:grid;grid-template-columns:1.2fr 1fr 1fr auto;gap:10px;align-items:center;
  padding:10px 4px;border-bottom:1px solid var(--paper-line);font-size:13.5px;
}
.ptable .prow.head{font-weight:700;color:var(--ink-soft);font-size:10.5px;text-transform:uppercase;letter-spacing:0.6px;border-bottom:1.5px solid var(--gold-light);}
.ptable .prow .actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:wrap;}
.login-badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:12px;background:#DCEBDF;color:var(--paid);}
.no-login-badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:12px;background:#F0E4C8;color:var(--pending);}

@media (max-width:640px){
  .ptable .prow{grid-template-columns:1fr auto;}
  .ptable .prow .col-mobile,.ptable .prow .col-login{display:none;}
  .ptable .prow.head{grid-template-columns:1fr auto;}
  .page-title{font-size:20px;}
}