:root{
    --ink:#5C3680;
    --ink-soft:#77499D;
    --paper:#F5F1FA;
    --paper-raised:#FFFFFF;
    --brass:#2E9AC7;
    --brass-dark:#1E7A9F;
    --lavender:#D1B2EB;
    --sky:#87DAFF;
    --line:#E3D8EF;
    --ok:#4C7A4E;
    --warn:#B5473A;
    --text:#2B1F3D;
    --text-muted:#7A6F8C;
  }
  *{box-sizing:border-box;}
  body{margin:0;font-family:'Poppins',sans-serif;background:var(--paper);color:var(--text);}
  h1,h2,h3,.serif{font-family:'Poppins',sans-serif;font-weight:600;}
  button{font-family:'Poppins',sans-serif;cursor:pointer;}
  a{color:inherit;}

  /* ---------- LOGIN ---------- */
  #view-login{
    min-height:100vh;
    display:grid;
    grid-template-columns: 1.1fr 1fr;
  }
  @media (max-width:820px){ #view-login{grid-template-columns:1fr;} #login-side{display:none;} }
  #login-side{
    background:#6B4291;
    color:#EFEAE0;
    padding:64px 56px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    position:relative;
    overflow:hidden;
  }
  #login-side::after{
    content:"";
    position:absolute; right:-120px; bottom:-140px;
    width:380px; height:380px; border-radius:50%;
    background:radial-gradient(circle at 30% 30%, var(--sky) 0%, transparent 70%);
    opacity:.35;
  }
  .brandmark{display:flex;align-items:center;gap:10px;}
  .brandmark img{height:34px;display:block;}
  .brandmark span{letter-spacing:.04em;font-weight:600;font-size:12px;color:#C9BEDD;}
  #login-side .brandmark img{height:52px;}
  .login-quote{font-size:32px;line-height:1.35;max-width:420px;position:relative;z-index:1;}
  .login-quote small{display:block;margin-top:18px;font-family:'Poppins',sans-serif;font-size:14px;color:var(--lavender);font-weight:400;}
  .login-meta{font-size:13px;color:#C9B8DE;position:relative;z-index:1;}

  #login-form-wrap{
    display:flex;align-items:center;justify-content:center;
    padding:40px;
  }
  .login-card{width:100%;max-width:380px;}
  .login-card h1{font-size:28px;margin:0 0 6px;color:var(--ink);}
  .login-card p.sub{margin:0 0 36px;color:var(--text-muted);font-size:14px;}
  .field{margin-bottom:20px;}
  .field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink-soft);}
  .field input{
    width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:3px;
    background:var(--paper-raised);font-size:15px;color:var(--text);
  }
  .field input:focus{outline:2px solid var(--brass);outline-offset:1px;border-color:var(--brass);}
  .btn-primary{
    width:100%;padding:13px;background:var(--ink);color:#EFEAE0;border:none;border-radius:3px;
    font-size:15px;font-weight:600;letter-spacing:.01em;
  }
  .btn-primary:hover{background:var(--brass-dark);}
  .btn-primary:focus-visible{outline:2px solid var(--brass);outline-offset:2px;}
  .login-help{margin-top:18px;font-size:13px;color:var(--text-muted);}
  .login-help a{color:var(--brass-dark);text-decoration:underline;}

  /* ---------- APP SHELL ---------- */
  #view-app{display:none;min-height:100vh;grid-template-columns:240px 1fr;}
  #view-app.active{display:grid;}
  #sidebar{
    background:var(--ink);color:#D8D2C3;padding:28px 20px;display:flex;flex-direction:column;
  }
  #sidebar .brandmark{margin-bottom:44px;}
  .nav-group-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#EFEAF7;opacity:.65;margin:22px 0 10px;}
  .nav-item{
    display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:3px;
    font-size:14px;color:#FFFFFF;margin-bottom:2px;border:none;background:none;width:100%;text-align:left;
  }
  .nav-item .ico{width:16px;text-align:center;color:var(--brass);}
  .nav-item:hover{background:#2E323A;}
  .nav-item.active{background:var(--brass);color:#211F1B;font-weight:600;}
  .nav-item.active .ico{color:#211F1B;}
  #sidebar-foot{margin-top:auto;border-top:1px solid #3A3E44;padding-top:16px;font-size:13px;}
  #sidebar-foot .name{color:#EFEAE0;font-weight:600;}
  #sidebar-foot .role{color:#E5DCF1;font-size:12px;}
  #logout-btn{margin-top:12px;background:none;border:none;color:#EFEAF7;opacity:.8;font-size:13px;padding:0;text-decoration:underline;}

  /* mobile top bar (hidden on desktop) */
  #mobile-topbar{
    display:none;align-items:center;justify-content:space-between;
    background:var(--ink);padding:14px 18px;position:sticky;top:0;z-index:30;
  }
  #mobile-topbar .brandmark img{height:26px;}
  #hamburger-btn{
    width:38px;height:38px;border-radius:6px;border:none;background:#2E323A;color:#fff;
    font-size:18px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  #sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(20,10,30,.5);z-index:40;}
  #sidebar-backdrop.open{display:block;}

  #main{padding:40px 48px;overflow-y:auto;min-width:0;}
  .page{display:none;}
  .page.active{display:block;}
  .page-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:8px;}
  .page-head h1{font-size:26px;margin:0;color:var(--ink);}
  .page-sub{color:var(--text-muted);font-size:14px;margin:0 0 32px;}
  .eyebrow{font-size:12px;color:var(--brass-dark);font-weight:600;margin-bottom:4px;}

  /* biblioteca */
  .cat-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px;}
  .cat-tab{
    padding:8px 16px;border:1px solid var(--line);border-radius:20px;background:var(--paper-raised);
    font-size:13px;color:var(--ink-soft);text-decoration:none;display:inline-block;
  }
  .cat-tab.active{background:var(--ink);color:#EFEAE0;border-color:var(--ink);}

  .doc-list{border-top:1px solid var(--line);}
  .doc-row{
    display:grid;grid-template-columns:auto 1fr auto auto;gap:18px;align-items:center;
    padding:18px 4px;border-bottom:1px solid var(--line);
  }
  .doc-icon{
    width:38px;height:38px;border-radius:4px;background:var(--paper-raised);border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--brass-dark);font-weight:700;font-size:12px;
  }
  .doc-name{font-weight:600;font-size:15px;color:var(--text);}
  .doc-meta{font-size:12px;color:var(--text-muted);margin-top:2px;}
  .status-pill{font-size:12px;padding:4px 10px;border-radius:20px;font-weight:600;white-space:nowrap;}
  .status-pending{background:#F2E2D8;color:var(--warn);}
  .status-read{background:#E1EADF;color:var(--ok);}
  .doc-row .open-link{font-size:13px;color:var(--brass-dark);font-weight:600;text-decoration:underline;background:none;border:none;}

  /* documento detalle */
  .doc-detail-grid{display:grid;grid-template-columns:1fr 280px;gap:40px;}
  .doc-paper{
    background:var(--paper-raised);border:1px solid var(--line);border-radius:4px;padding:40px;
    min-height:520px;
  }
  .doc-paper h2{margin-top:0;font-size:22px;color:var(--ink);}
  .doc-paper p{line-height:1.7;color:var(--ink-soft);font-size:14.5px;}
  .side-card{
    background:var(--paper-raised);border:1px solid var(--line);border-radius:4px;padding:22px;margin-bottom:18px;
  }
  .side-card h3{margin:0 0 14px;font-size:14px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);}
  .side-row{display:flex;justify-content:space-between;font-size:13.5px;padding:7px 0;border-bottom:1px solid var(--line);}
  .side-row:last-child{border-bottom:none;}
  .btn-mark{
    width:100%;padding:11px;background:var(--ok);color:#fff;border:none;border-radius:3px;font-weight:600;font-size:14px;
  }
  .btn-mark.done{background:var(--paper);color:var(--ok);border:1px solid var(--ok);}

  /* panel admin */
  .stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:34px;}
  .stat-card{background:var(--paper-raised);border:1px solid var(--line);border-radius:4px;padding:20px 22px;}
  .stat-card .num{font-family:'Poppins',sans-serif;font-weight:700;font-size:32px;color:var(--ink);}
  .stat-card .lbl{font-size:13px;color:var(--text-muted);margin-top:4px;}

  table{width:100%;border-collapse:collapse;font-size:13.5px;}
  thead th{
    text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);
    padding:10px 12px;border-bottom:1px solid var(--ink);
  }
  tbody td{padding:13px 12px;border-bottom:1px solid var(--line);}
  tbody tr:hover{background:var(--paper-raised);}
  .avatar-mini{
    width:26px;height:26px;border-radius:50%;background:var(--ink-soft);color:#fff;font-size:11px;font-weight:700;
    display:inline-flex;align-items:center;justify-content:center;margin-right:8px;
  }
  .progress-track{background:var(--line);height:6px;border-radius:4px;width:120px;overflow:hidden;}
  .progress-fill{background:var(--brass);height:100%;}

  /* ---------- RESPONSIVE ---------- */
  @media (max-width: 900px){
    #mobile-topbar{display:flex;}
    #view-app.active{grid-template-columns:1fr;}
    #sidebar{
      position:fixed;top:0;left:0;height:100vh;width:250px;
      transform:translateX(-100%);transition:transform .25s ease;z-index:50;
      overflow-y:auto;
    }
    #sidebar.open{transform:translateX(0);}
    #sidebar .brandmark{display:none;}
    #main{padding:24px 20px;}
    .stat-row{grid-template-columns:1fr;gap:12px;}
    .doc-detail-grid{grid-template-columns:1fr;gap:20px;}
    .doc-row{grid-template-columns:auto 1fr;row-gap:8px;}
    .doc-row .status-pill{grid-column:2;justify-self:start;}
    .doc-row .open-link{grid-column:2;justify-self:start;}
    .cat-row{overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px;}
    .cat-tab{flex-shrink:0;}
    .responsive-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);}
    .responsive-table, .responsive-table tbody, .responsive-table tr, .responsive-table td{display:block;width:100%;}
    .responsive-table tr{
      border:1px solid var(--line);border-radius:6px;margin-bottom:14px;padding:6px 14px;background:var(--paper-raised);
    }
    .responsive-table td{
      display:flex;justify-content:space-between;align-items:center;gap:12px;
      padding:10px 0;border-bottom:1px solid var(--line);text-align:right;
    }
    .responsive-table td:last-child{border-bottom:none;}
    .responsive-table td::before{
      content:attr(data-label);font-weight:600;font-size:12.5px;color:var(--text-muted);text-align:left;
    }
    .page-head{flex-direction:column;align-items:flex-start;gap:6px;}
  }
  @media (max-width: 480px){
    .login-card{max-width:100%;}
    #login-form-wrap{padding:28px 22px;}
    #main{padding:18px 14px;}
    .page-head h1{font-size:21px;}
    .doc-paper{padding:24px;}
  }

/* ---------- Notificación flotante de pendientes ---------- */
#notif-fab{
  position:fixed;bottom:24px;right:24px;z-index:60;
  width:52px;height:52px;border-radius:50%;
  background:var(--ink);color:#fff;border:none;
  box-shadow:0 4px 14px rgba(0,0,0,.25);font-size:20px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
#notif-fab .badge{
  position:absolute;top:-4px;right:-4px;background:var(--warn);color:#fff;
  font-size:11px;font-weight:700;min-width:18px;height:18px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;padding:0 4px;
}
#notif-panel{
  position:fixed;bottom:86px;right:24px;width:300px;max-height:360px;
  background:var(--paper-raised);border:1px solid var(--line);border-radius:8px;
  box-shadow:0 8px 24px rgba(0,0,0,.18);z-index:60;display:none;flex-direction:column;overflow:hidden;
}
#notif-panel.open{display:flex;}
#notif-panel header{padding:14px 16px;border-bottom:1px solid var(--line);font-weight:600;font-size:14px;color:var(--ink);}
#notif-panel .lista{overflow-y:auto;flex:1;}
#notif-panel .item{display:block;padding:10px 16px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--text);font-size:13px;}
#notif-panel .item:hover{background:var(--paper);}
#notif-panel .item .cat{font-size:11.5px;color:var(--text-muted);margin-top:2px;}
#notif-panel footer{padding:10px 16px;text-align:center;border-top:1px solid var(--line);}
#notif-panel footer a{font-size:12.5px;color:var(--brass-dark);font-weight:600;text-decoration:none;}
#notif-panel .vacio{padding:24px 16px;text-align:center;color:var(--text-muted);font-size:13px;}

@media (max-width:480px){
  #notif-fab{bottom:18px;right:18px;}
  #notif-panel{right:16px;bottom:80px;width:calc(100vw - 32px);}
}