:root {
    --bg: #ffffff;
    --text: #111111;
    --muted: #6b6b6b;
    --border: #e6e6e6;
    --border-strong: #000000;
    --card: #ffffff;
    --shadow: 0 1px 2px rgba(0,0,0,.06);
    --radius: 12px;
    --radius-sm: 10px;
    --spacing: 16px;
  }
  
  * { box-sizing: border-box; }
  html, body { height: 100%; }
  body {
    margin: 0;
    font-family: ui-sans-serif, -apple-system, Segoe UI, Roboto, Helvetica, Arial, system-ui;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  a { color: inherit; text-decoration: none; }
  a:hover { text-decoration: underline; }
  
  /* Header / brand */
  header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 10;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    letter-spacing: .2px;
  }
  .logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: #000;
    border: 1px solid #000;
    box-shadow: 0 0 0 1px #000 inset;
  }

  #empleadosLista .pill
  {
    margin-left: 10px;
  }
  #empleadosLista button
  {
    width: 150px;
  }
  
  /* Layout */
  .container { max-width: 1120px; margin: 0 auto; padding: 0 16px 56px; }
  .card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin: 15px;
  }
  .login { max-width: 440px; margin: 40px auto; }
  
  h1,h2,h3,h4 { margin: 0 0 8px; font-weight: 700; }
  .muted { color: var(--muted); font-size: 13px; }
  
  /* Grid helpers */
  .grid { display: grid; gap: 12px; }
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  
  /* Forms */
  label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 6px; }
  input, select, button, textarea {
    width: 100%;
    padding: 12px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease, transform .06s ease;
  }
  input:focus, select:focus, textarea:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 2px rgba(0,0,0,.08);
  }
  
  /* Buttons */
  button {
    cursor: pointer;
    background: #000;
    color: #fff;
    border: 1px solid #000;
    font-weight: 700;
  }
  button:hover { transform: translateY(-1px); }
  button:active { transform: translateY(0); }
  .btn-secondary { background: #fff; color: #000; border: 1px solid #000; }
  .btn-danger, .btn-warn, .btn-ok {
    background: #fff;
    color: #000;
    border: 1px solid #000;
  }
  .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
  
  /* Tabs */
  .tabs { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
  .tab {
    padding: 8px 12px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--muted);
    cursor: pointer;
    user-select: none;
  }
  .tab.active {
    color: #000;
    border-color: #000;
    box-shadow: 0 0 0 1px #000 inset;
  }
  
  /* Sections */
  .section { margin-top: 16px; padding: 12px; }
  
  /* Tables */
  table { width: 100%; border-collapse: separate; border-spacing: 0; }
  thead th {
    text-align: left;
    font-size: 12px;
    color: var(--muted);
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
  }
  tbody td {
    padding: 12px 8px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
  }
  tbody tr:hover { background: #fafafa; }
  
  /* KPI tiles */
  .kpi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 12px 0 4px; }
  .kpi .tile {
    padding: 12px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
  }
  .kpi .big { font-size: 22px; font-weight: 800; }
  
  /* Pills, badges */
  .pill {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    background: #fff;
    border: 1px solid #000;
    color: #000;
  }
  
  /* Toolbar */
  .toolbar { display: flex; gap: 10px; flex-wrap: wrap; }
  .spacer { flex: 1; }
  
  /* Calendar */
  .calendar { margin-top: 12px; }
  .calendar .head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }
  .calendar .grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 8px; }
  .dow { font-size: 11px; color: var(--muted); text-align: center; text-transform: uppercase; letter-spacing: .04em; }
  .day {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    height: 84px;
    padding: 8px;
    position: relative;
    cursor: pointer;
    transition: background .12s ease, border-color .12s ease, transform .06s ease;
  }
  .day .n { color: var(--muted); font-size: 12px; }
  .day:hover { background: #fafafa; }
  .day.vac {
    background: #000;
    color: #fff;
    border-color: #000;
  }
  .day.vac .n { color: #fff; }
  .day.today {
    outline: 2px dashed #000;
    outline-offset: 2px;
  }
  .day.disabled {
    opacity: .4;
    pointer-events: none;
    filter: grayscale(.6);
  }
  
  /* Notices & misc */
  .notice { font-size: 13px; color: var(--muted); }
  .footer { margin-top: 30px; text-align: center; color: var(--muted); font-size: 12px; }
  .hidden { display: none !important; }
  .right { text-align: right; }
  .center { text-align: center; }
  
  /* Small screens */
  @media (max-width: 860px) {
    .grid-2, .grid-3, .kpi { grid-template-columns: 1fr; }
    .calendar .grid { gap: 4px; }
    .day { height: 68px; }
  }