/* ─── Design tokens ─── */
    :root {
      --blue:         #2272a3;
      --blue-dark:    #1a5f87;
      --blue-sidebar: #134d6e;
      --blue-light:   #e8f4fb;
      --blue-lighter: #f0f8ff;

      --bg:           #f4f7fa;
      --surface:      #ffffff;
      --border:       #dce8f0;
      --border-dark:  #c4d8e8;

      --text:         #0f2236;
      --text-muted:   #4a6278;
      --text-faint:   #8ba3b5;

      --green:        #1a7a4a;
      --green-bg:     #e6f5ed;
      --red:          #b83232;
      --red-bg:       #fdeaea;
      --amber:        #9a6800;
      --amber-bg:     #fff8e6;

      --radius:       14px;
      --radius-sm:    10px;
      --shadow:       0 2px 12px rgba(34, 114, 163, 0.08);
      --shadow-hover: 0 4px 24px rgba(34, 114, 163, 0.14);
    }

    /* ─── Reset ─── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html, body { height: 100%; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Plus Jakarta Sans', sans-serif;
      font-size: 14px;
      line-height: 1.6;
    }
    ::-webkit-scrollbar { width: 5px; }
    ::-webkit-scrollbar-thumb { background: var(--border-dark); border-radius: 3px; }

    /* ─── App shell ─── */
    .app { display: flex; height: 100vh; overflow: hidden; }

    /* ─── Sidebar ─── */
    .sidebar {
      width: 240px;
      background: var(--blue-sidebar);
      display: flex;
      flex-direction: column;
      flex-shrink: 0;
      padding-bottom: 20px;
    }
    .sidebar-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 24px 20px;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }
    .sidebar-logo img {
      width: 46px;
      height: 46px;
      border-radius: 10px;
      object-fit: cover;
      background: white;
      padding: 2px;
    }
    .sidebar-logo .org-name {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      line-height: 1.2;
    }
    .sidebar-logo .org-sub {
      font-size: 10px;
      color: rgba(255,255,255,.5);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-top: 2px;
    }
    .nav { padding: 16px 12px; flex: 1; }
    .nav-section-label {
      font-size: 9px;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(255,255,255,.35);
      padding: 14px 10px 6px;
    }
    .nav-item {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      color: rgba(255,255,255,.6);
      font-size: 13px;
      font-weight: 400;
      border: 1px solid transparent;
      margin-bottom: 3px;
      transition: all .18s;
    }
    .nav-item:hover { background: rgba(255,255,255,.1); color: #fff; }
    .nav-item.active {
      background: rgba(255,255,255,.15);
      color: #fff;
      font-weight: 500;
      border-color: rgba(255,255,255,.15);
    }
    .nav-item .icon { width: 20px; text-align: center; font-size: 15px; flex-shrink: 0; }
    .sidebar-footer {
      padding: 16px 20px 0;
      border-top: 1px solid rgba(255,255,255,.1);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot {
      width: 7px; height: 7px;
      border-radius: 50%;
      background: #4cde88;
      box-shadow: 0 0 8px rgba(76,222,136,.6);
      animation: pulse 2s infinite;
    }
    @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
    .status-label { font-size: 11px; color: rgba(255,255,255,.4); }

    /* ─── Main area ─── */
    .main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
    .topbar {
      height: 62px;
      padding: 0 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-shrink: 0;
      background: var(--surface);
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow);
    }
    .topbar-title { font-size: 17px; font-weight: 600; color: var(--text); }
    .topbar-right { display: flex; align-items: center; gap: 10px; }
    .topbar-date {
      font-size: 12px;
      color: var(--text-faint);
      background: var(--blue-light);
      padding: 5px 12px;
      border-radius: 20px;
      border: 1px solid var(--border);
    }
    .topbar-cfg-btn {
      width: 36px; height: 36px;
      background: var(--blue-light);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      color: var(--text-muted);
      font-size: 16px;
      cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: all .15s;
    }
    .topbar-cfg-btn:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
    .page-content { flex: 1; overflow-y: auto; padding: 28px; }

    /* ─── Pages ─── */
    .page { display: none; animation: fade-in .25s ease; }
    .page.active { display: block; }
    @keyframes fade-in {
      from { opacity: 0; transform: translateY(5px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .page-title    { font-size: 24px; font-weight: 600; color: var(--text); margin-bottom: 2px; }
    .page-subtitle { font-size: 13px; color: var(--text-faint); margin-bottom: 24px; }

    /* ─── Metric cards ─── */
    .metrics   { display: grid; gap: 14px; margin-bottom: 22px; }
    .metrics-4 { grid-template-columns: repeat(4, 1fr); }
    .metrics-3 { grid-template-columns: repeat(3, 1fr); }
    .metric-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 20px 22px;
      box-shadow: var(--shadow);
      transition: box-shadow .2s, transform .2s;
    }
    .metric-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-1px); }
    .metric-card.accent { border-top: 3px solid var(--blue); padding-top: 18px; }
    .metric-label {
      font-size: 11px; font-weight: 500;
      color: var(--text-faint);
      text-transform: uppercase; letter-spacing: .5px;
      margin-bottom: 8px;
    }
    .metric-value { font-size: 28px; font-weight: 600; color: var(--text); line-height: 1; }
    .metric-value.positive { color: var(--green); }
    .metric-value.negative { color: var(--red); }
    .metric-sub { font-size: 11px; color: var(--text-faint); margin-top: 6px; }

    /* ─── Cards ─── */
    .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px;
      margin-bottom: 16px;
      box-shadow: var(--shadow);
    }
    .card-header {
      display: flex; align-items: center; justify-content: space-between;
      margin-bottom: 18px;
    }
    .card-title {
      font-size: 12px; font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase; letter-spacing: .8px;
    }

    /* ─── Buttons ─── */
    .btn {
      padding: 9px 18px;
      border-radius: var(--radius-sm);
      font-size: 13px; font-family: inherit; font-weight: 500;
      cursor: pointer;
      border: 1px solid var(--border-dark);
      background: var(--surface);
      color: var(--text-muted);
      transition: all .18s;
    }
    .btn:hover { background: var(--blue-light); color: var(--blue); border-color: var(--blue); }
    .btn.primary { background: var(--blue); color: #fff; border-color: var(--blue); }
    .btn.primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
    .btn.small { padding: 6px 12px; font-size: 12px; }
    .btn:disabled { opacity: .5; cursor: not-allowed; }

    /* ─── List rows ─── */
    .list-row {
      display: flex; align-items: center; gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid var(--border);
    }
    .list-row:first-child { padding-top: 0; }
    .list-row:last-child  { border-bottom: none; padding-bottom: 0; }

    /* ─── Date badge ─── */
    .date-badge {
      background: var(--blue-light);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 7px 10px; text-align: center; min-width: 52px; flex-shrink: 0;
    }
    .date-badge .day   { font-size: 20px; font-weight: 700; color: var(--blue); line-height: 1; }
    .date-badge .month { font-size: 9px; text-transform: uppercase; color: var(--text-faint); letter-spacing: .5px; }

    /* ─── Badges ─── */
    .badge { font-size: 10px; padding: 3px 9px; border-radius: 20px; font-weight: 600; }
    .badge.green  { background: var(--green-bg);  color: var(--green); }
    .badge.red    { background: var(--red-bg);    color: var(--red); }
    .badge.blue   { background: var(--blue-light); color: var(--blue); }
    .badge.amber  { background: var(--amber-bg);  color: var(--amber); }

    /* ─── Calendar ─── */
    .cal-nav { display: flex; align-items: center; gap: 12px; }
    .cal-month-label { font-size: 16px; font-weight: 600; color: var(--text); min-width: 180px; }
    .cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
    .cal-weekday {
      text-align: center; font-size: 10px;
      text-transform: uppercase; letter-spacing: .8px;
      color: var(--text-faint); font-weight: 600; padding: 6px 0;
    }
    .cal-day {
      min-height: 64px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 7px; cursor: pointer;
      background: var(--surface);
      transition: all .15s;
    }
    .cal-day:hover { background: var(--blue-light); border-color: var(--blue); }
    .cal-day.empty { border: none; background: transparent; cursor: default; pointer-events: none; }
    .cal-day.today { border-color: var(--blue); background: var(--blue-lighter); box-shadow: 0 0 0 2px rgba(34,114,163,.15); }
    .cal-day .day-num { font-size: 12px; color: var(--text-faint); font-weight: 500; }
    .cal-day.today .day-num { color: var(--blue); font-weight: 700; }
    .cal-event {
      font-size: 9px; padding: 2px 5px; border-radius: 4px; margin-top: 3px;
      overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
      background: var(--blue); color: #fff; font-weight: 500;
    }
    .cal-more { font-size: 9px; color: var(--text-faint); margin-top: 2px; }

    /* ─── Form elements ─── */
    .form-group  { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
    .form-label  {
      font-size: 11px; font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase; letter-spacing: .5px;
    }
    .form-input {
      width: 100%;
      padding: 10px 13px;
      background: var(--bg);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      font-size: 13px; font-family: inherit; color: var(--text);
      transition: border-color .18s, box-shadow .18s;
    }
    .form-input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(34,114,163,.12); }
    .form-input::placeholder { color: var(--text-faint); }
    .form-input option { background: #fff; color: var(--text); }
    .form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

    /* ─── Modal ─── */
    .modal-overlay {
      display: none; position: fixed; inset: 0;
      background: rgba(15,34,54,.5); z-index: 100;
      align-items: center; justify-content: center;
      backdrop-filter: blur(3px);
    }
    .modal-overlay.open { display: flex; animation: fade-in .2s ease; }
    .modal {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px; padding: 30px;
      width: 480px; max-width: 95vw; max-height: 90vh; overflow-y: auto;
      box-shadow: 0 20px 60px rgba(15,34,54,.2);
    }
    .modal-title { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 20px; }
    .modal-footer {
      display: flex; gap: 10px; justify-content: flex-end;
      margin-top: 20px; padding-top: 16px;
      border-top: 1px solid var(--border);
    }

    /* ─── Transaction rows ─── */
    .tx-row {
      display: flex; align-items: center; gap: 12px;
      padding: 11px 0; border-bottom: 1px solid var(--border);
    }
    .tx-row:last-child { border-bottom: none; }
    .tx-dot  { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
    .tx-info { flex: 1; }
    .tx-name { font-size: 13px; font-weight: 500; color: var(--text); }
    .tx-meta { font-size: 11px; color: var(--text-faint); margin-top: 1px; }
    .tx-amount { font-size: 15px; font-weight: 600; }
    .tx-amount.positive { color: var(--green); }
    .tx-amount.negative { color: var(--red); }
    .delete-btn {
      background: none; border: none; cursor: pointer;
      color: var(--text-faint); font-size: 13px;
      padding: 4px 6px; border-radius: 6px; font-family: inherit;
      transition: all .15s;
    }
    .delete-btn:hover { color: var(--red); background: var(--red-bg); }

    /* ─── Bar chart ─── */
    .bar-chart   { display: flex; align-items: flex-end; gap: 8px; height: 80px; }
    .bar-column  { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 5px; }
    .bar-column .bars { display: flex; align-items: flex-end; gap: 3px; height: 70px; }
    .bar         { border-radius: 4px 4px 0 0; }
    .bar-label   { font-size: 9px; color: var(--text-faint); font-weight: 600; }
    .chart-legend { display: flex; gap: 14px; margin-top: 12px; }
    .legend-item  { display: flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 500; color: var(--text-muted); }
    .legend-dot   { width: 10px; height: 10px; border-radius: 3px; }

    /* ─── Status pill ─── */
    .status-pill {
      display: flex; align-items: center; gap: 12px;
      padding: 14px 16px;
      background: var(--blue-lighter);
      border: 1px solid var(--border); border-radius: var(--radius);
    }
    .status-indicator { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
    .status-indicator.available { background: #1a7a4a; box-shadow: 0 0 8px rgba(26,122,74,.4); animation: pulse 2s infinite; }
    .status-indicator.occupied  { background: #e08c00; box-shadow: 0 0 8px rgba(224,140,0,.4); }
    .status-text { font-size: 14px; font-weight: 600; color: var(--text); }
    .status-meta { font-size: 12px; color: var(--text-faint); margin-top: 2px; }

    /* ─── Inventory grid ─── */
    .inv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
    .inv-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius); padding: 18px;
      display: flex; flex-direction: column; gap: 9px;
      box-shadow: var(--shadow); transition: all .2s;
    }
    .inv-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-1px); }
    .inv-card.low-stock { border-color: #f5b8b8; border-left: 3px solid var(--red); }
    .inv-card-header { display: flex; justify-content: space-between; align-items: flex-start; }
    .inv-icon     { font-size: 24px; }
    .inv-name     { font-size: 14px; font-weight: 600; color: var(--text); }
    .inv-category { font-size: 10px; text-transform: uppercase; letter-spacing: .8px; color: var(--text-faint); font-weight: 600; }
    .inv-qty-row  { display: flex; align-items: center; gap: 6px; }
    .inv-quantity { font-size: 34px; font-weight: 700; color: var(--text); line-height: 1; }
    .inv-quantity.low { color: var(--red); }
    .inv-qty-controls { display: flex; gap: 5px; margin-left: auto; }
    .qty-btn {
      width: 30px; height: 30px; border-radius: 8px;
      border: 1px solid var(--border-dark); background: var(--bg);
      color: var(--text-muted); cursor: pointer; font-size: 18px;
      display: flex; align-items: center; justify-content: center;
      font-family: inherit; transition: all .15s;
    }
    .qty-btn:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }
    .inv-min-label { font-size: 11px; color: var(--text-faint); }
    .inv-notes { font-size: 11px; color: var(--text-faint); border-top: 1px solid var(--border); padding-top: 9px; font-style: italic; }
    .inv-card-footer { display: flex; justify-content: flex-end; }

    /* ─── Category filter pills ─── */
    .filter-pills { display: flex; gap: 7px; flex-wrap: wrap; }
    .filter-pill {
      padding: 6px 14px; border-radius: 20px;
      font-size: 12px; font-weight: 500; cursor: pointer;
      border: 1px solid var(--border-dark); background: var(--surface);
      color: var(--text-muted); font-family: inherit; transition: all .15s;
    }
    .filter-pill:hover  { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }
    .filter-pill.active { background: var(--blue); color: #fff; border-color: var(--blue); }

    /* ─── Empty state ─── */
    .empty-state { font-size: 13px; color: var(--text-faint); padding: 12px 0; font-style: italic; }

    /* ══════════════════════════════════════════════════
       CUOTAS — specific styles
    ══════════════════════════════════════════════════ */

    /* Search */
    .cuotas-search-wrap { position: relative; margin-bottom: 16px; }
    .cuotas-search-icon {
      position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
      color: var(--text-faint); font-size: 16px; pointer-events: none;
    }
    .cuotas-search-input {
      width: 100%;
      padding: 12px 16px 12px 42px;
      background: var(--surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      font-size: 15px; font-family: inherit; color: var(--text);
      transition: border-color .2s, box-shadow .2s;
      box-shadow: var(--shadow);
    }
    .cuotas-search-input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(34,114,163,.12); }
    .cuotas-search-input::placeholder { color: var(--text-faint); }

    /* Search hint */
    .search-hint {
      text-align: center; padding: 40px 20px;
      color: var(--text-faint); font-size: 14px; line-height: 1.7;
    }
    .search-hint .big { font-size: 36px; display: block; margin-bottom: 10px; }

    /* Person card */
    .person-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      margin-bottom: 10px;
      box-shadow: var(--shadow);
      transition: border-color .15s;
      animation: fade-in .18s ease;
    }
    .person-card:hover { border-color: var(--border-dark); }
    .person-card-top {
      display: flex; align-items: center; gap: 12px;
      padding: 14px 18px; cursor: pointer;
    }
    .person-avatar {
      width: 44px; height: 44px;
      background: var(--blue);
      border-radius: var(--radius-sm);
      display: flex; align-items: center; justify-content: center;
      font-size: 16px; font-weight: 700; color: #fff;
      flex-shrink: 0;
    }
    .person-info    { flex: 1; min-width: 0; }
    .person-name    { font-size: 15px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .person-meta    { display: flex; align-items: center; gap: 6px; margin-top: 3px; flex-wrap: wrap; }
    .section-badge  {
      font-size: 11px; font-weight: 600; padding: 2px 8px;
      border-radius: 6px;
      background: var(--blue-light); color: var(--blue);
      border: 1px solid var(--border-dark);
      white-space: nowrap;
    }
    .payment-badge  { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 6px; white-space: nowrap; }
    .payment-badge.paid    { background: var(--green-bg); color: var(--green); border: 1px solid rgba(26,122,74,.25); }
    .payment-badge.unpaid  { background: var(--red-bg);   color: var(--red);   border: 1px solid rgba(184,50,50,.25); }
    .payment-badge.unknown { background: var(--amber-bg); color: var(--amber); border: 1px solid rgba(154,104,0,.25); }
    .expand-chevron { color: var(--text-faint); font-size: 12px; transition: transform .2s; flex-shrink: 0; }
    .person-card.open .expand-chevron { transform: rotate(180deg); }

    /* Expandable register panel */
    .register-panel {
      display: none;
      padding: 0 18px 18px;
      border-top: 1px solid var(--border);
      background: var(--blue-lighter);
      animation: fade-in .18s ease;
    }
    .person-card.open .register-panel { display: block; }
    .register-panel-title {
      font-size: 11px; font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase; letter-spacing: .8px;
      padding: 12px 0 10px;
    }

    /* Toggle buttons */
    .toggle-group  { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
    .toggle-btn {
      padding: 8px 16px; border-radius: var(--radius-sm);
      border: 1px solid var(--border-dark);
      background: var(--surface); color: var(--text-muted);
      font-size: 13px; font-weight: 500; font-family: inherit;
      cursor: pointer; transition: all .15s; white-space: nowrap;
    }
    .toggle-btn:hover { border-color: var(--blue); color: var(--blue); }
    .toggle-btn.active-paid    { background: var(--green-bg); border-color: var(--green); color: var(--green); font-weight: 600; }
    .toggle-btn.active-unpaid  { background: var(--red-bg);   border-color: var(--red);   color: var(--red);   font-weight: 600; }
    .toggle-btn.active-mode    { background: var(--blue-light); border-color: var(--blue); color: var(--blue); font-weight: 600; }

    .register-mini-result {
      margin-top: 10px; padding: 10px 14px;
      border-radius: var(--radius-sm); font-size: 13px; font-weight: 500;
      display: none;
    }
    .register-mini-result.success { background: var(--green-bg); color: var(--green); border: 1px solid rgba(26,122,74,.25); display: block; }
    .register-mini-result.error   { background: var(--red-bg);   color: var(--red);   border: 1px solid rgba(184,50,50,.25);  display: block; }

    /* New person form */
    .new-person-btn {
      width: 100%; padding: 12px;
      background: transparent;
      border: 1px dashed var(--border-dark);
      border-radius: var(--radius-sm);
      color: var(--blue); font-size: 13px; font-weight: 500;
      font-family: inherit; cursor: pointer;
      transition: all .15s; margin-bottom: 12px;
      display: none;
    }
    .new-person-btn.visible { display: block; }
    .new-person-btn:hover { background: var(--blue-light); border-color: var(--blue); }

    .new-person-form {
      background: var(--surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius); padding: 20px;
      margin-bottom: 16px; display: none;
    }
    .new-person-form.visible { display: block; animation: fade-in .18s ease; }
    .new-person-form-title { font-size: 14px; font-weight: 600; color: var(--blue); margin-bottom: 16px; }

    /* No URL warning */
    .no-sheet-warning {
      display: none;
      padding: 12px 16px; margin-bottom: 16px;
      background: var(--amber-bg);
      border: 1px solid rgba(154,104,0,.3);
      border-radius: var(--radius-sm);
      font-size: 13px; color: var(--amber); cursor: pointer;
    }
    .no-sheet-warning span { text-decoration: underline; }

    /* Resumen styles */
    .resumen-total-card {
      background: linear-gradient(135deg, var(--blue), var(--blue-dark));
      border-radius: var(--radius); padding: 22px;
      margin-bottom: 16px; color: #fff;
    }
    .resumen-total-label { font-size: 11px; opacity: .7; text-transform: uppercase; letter-spacing: .8px; margin-bottom: 6px; }
    .resumen-total-amount { font-size: 40px; font-weight: 700; line-height: 1; }
    .resumen-total-sub { font-size: 13px; opacity: .75; margin-top: 8px; }
    .resumen-total-sub strong { opacity: 1; }

    .section-resumen-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 10px; box-shadow: var(--shadow); }
    .sec-resumen-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
    .sec-resumen-name   { font-size: 15px; font-weight: 600; color: var(--text); }
    .sec-resumen-total  { font-size: 20px; font-weight: 700; color: var(--blue); }
    .sec-resumen-stats  { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
    .sec-progress-track { height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; margin-bottom: 8px; }
    .sec-progress-fill  { height: 100%; border-radius: 4px; background: var(--blue); transition: width .6s ease; }
    .ausentes-toggle {
      font-size: 12px; color: var(--text-faint);
      cursor: pointer; display: flex; align-items: center; gap: 5px;
      user-select: none; margin-top: 4px;
    }
    .ausentes-toggle:hover { color: var(--text-muted); }
    .ausentes-list { display: none; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
    .ausentes-list.visible { display: flex; }
    .ausente-chip {
      font-size: 11px; padding: 3px 10px;
      background: var(--red-bg); color: var(--red);
      border: 1px solid rgba(184,50,50,.2); border-radius: 20px;
    }

    .comparison-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; box-shadow: var(--shadow); }
    .comparison-row  { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
    .comparison-row:last-child { margin-bottom: 0; }
    .comparison-date  { font-size: 12px; color: var(--text-faint); width: 80px; flex-shrink: 0; }
    .comparison-track { flex: 1; height: 20px; background: var(--bg); border-radius: 4px; overflow: hidden; }
    .comparison-fill  { height: 100%; border-radius: 4px; background: var(--blue); opacity: .7; transition: width .7s ease; }
    .comparison-fill.selected { opacity: 1; }
    .comparison-value { font-size: 13px; font-weight: 600; color: var(--blue); width: 80px; text-align: right; flex-shrink: 0; }

    /* Config modal */
    .cfg-steps {
      background: var(--blue-lighter); border: 1px solid var(--border);
      border-radius: var(--radius-sm); padding: 14px;
      margin-top: 14px; font-size: 13px; color: var(--text-muted); line-height: 1.8;
    }
    .cfg-steps strong { color: var(--blue); }
    .conn-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--text-faint); margin-right: 6px; }
    .conn-dot.connected { background: var(--green); box-shadow: 0 0 6px rgba(26,122,74,.5); }

    /* Spinner */
    .spinner {
      display: inline-block; width: 14px; height: 14px;
      border: 2px solid rgba(255,255,255,.35); border-top-color: #fff;
      border-radius: 50%; animation: spin .7s linear infinite;
      vertical-align: middle; margin-right: 6px;
    }
    .spinner.dark {
      border-color: rgba(34,114,163,.25); border-top-color: var(--blue);
    }
    @keyframes spin { to { transform: rotate(360deg); } }


    /* ─── Login page ─── */
    body.login-page {
      background: linear-gradient(135deg, #1a5f87 0%, #134d6e 100%);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .login-box {
      background: #fff;
      border-radius: 16px;
      padding: 40px;
      width: 400px;
      max-width: 92vw;
      box-shadow: 0 20px 60px rgba(0,0,0,.2);
    }
    .login-logo {
      text-align: center;
      margin-bottom: 28px;
    }
    .login-logo img {
      width: 64px;
      height: 64px;
      border-radius: 14px;
      margin-bottom: 12px;
    }
    .login-logo h1 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text);
    }
    .login-logo p {
      font-size: 12px;
      color: var(--text-faint);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-top: 4px;
    }
    .login-error {
      background: var(--red-bg);
      color: var(--red);
      border: 1px solid rgba(184,50,50,.25);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      margin-bottom: 16px;
      display: none;
    }
    .login-error.visible { display: block; }

    /* ─── User menu in topbar ─── */
    .user-menu {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 6px 12px;
      background: var(--blue-light);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all .15s;
    }
    .user-menu:hover { background: var(--blue); color: #fff; }
    .user-menu:hover .user-name,
    .user-menu:hover .user-role { color: #fff; }
    .user-avatar {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--blue);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
    }
    .user-menu:hover .user-avatar { background: #fff; color: var(--blue); }
    .user-info { line-height: 1.1; }
    .user-name { font-size: 12px; font-weight: 600; color: var(--text); }
    .user-role { font-size: 10px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .5px; }

    /* ─── Toast notifications ─── */
    .toast-container {
      position: fixed;
      top: 20px;
      right: 20px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .toast {
      background: #fff;
      border-left: 4px solid var(--blue);
      border-radius: var(--radius-sm);
      padding: 12px 18px;
      box-shadow: 0 4px 20px rgba(0,0,0,.15);
      font-size: 13px;
      min-width: 250px;
      max-width: 400px;
      animation: slide-in .3s ease;
    }
    .toast.success { border-left-color: var(--green); }
    .toast.error { border-left-color: var(--red); }
    .toast.warning { border-left-color: var(--amber); }
    @keyframes slide-in {
      from { transform: translateX(100%); opacity: 0; }
      to { transform: translateX(0); opacity: 1; }
    }

    /* ─── Mobile responsive ─── */
    @media (max-width: 768px) {
      .sidebar { position: fixed; left: -240px; z-index: 50; height: 100vh; transition: left .25s; }
      .sidebar.mobile-open { left: 0; box-shadow: 0 0 20px rgba(0,0,0,.2); }
      .mobile-menu-btn { display: flex !important; }
      .metrics-4, .metrics-3 { grid-template-columns: 1fr 1fr; }
      .grid-2 { grid-template-columns: 1fr; }
      .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
      .topbar-date { display: none; }
      .page-content { padding: 16px; }
    }
    .mobile-menu-btn {
      display: none;
      width: 36px; height: 36px;
      background: var(--blue-light);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      color: var(--text-muted);
      font-size: 18px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
      margin-right: 12px;
    }