:root {
    --bg: #FAFAF7;
    --bg-card: #FFFFFF;
    --bg-sidebar: #0A0A0A;
    --bg-sidebar-hover: #161616;
    --bg-sidebar-active: #1F1F1F;
    --border: #E8E6DF;
    --border-strong: #D4D1C7;
    --text: #0A0A0A;
    --text-muted: #6B6A63;
    --text-light: #9A9890;
    --text-on-dark: #EDEBE3;
    --text-on-dark-muted: #8A8780;
    --accent: #F5C518;
    --accent-hover: #E0B000;
    --accent-soft: #FFF6D1;
    --accent-text: #5C4500;
    --on-accent: #1A1300;
    --success: #1F8A4C;
    --success-soft: #DEF2E5;
    --warning: #B8841A;
    --warning-soft: #FAEDD0;
    --danger: #C0392B;
    --danger-soft: #F8DDD8;
    --radius: 6px;
    --radius-lg: 10px;
    --shadow-sm: 0 1px 2px rgba(10,10,10,0.04);
    --shadow: 0 4px 12px rgba(10,10,10,0.06);
    --font-sans: 'Manrope', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-serif: 'Fraunces', Georgia, serif;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body { height: 100%; }
  body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }

  /* ---------- LAYOUT ---------- */
  .app { display: flex; min-height: 100vh; }

  /* ---------- SIDEBAR ---------- */
  .sidebar {
    width: 240px;
    background: var(--bg-sidebar);
    color: var(--text-on-dark);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    flex-shrink: 0;
  }
  .sidebar-brand {
    padding: 22px 22px 18px;
    border-bottom: 1px solid #1F2329;
    display: flex; align-items: baseline; gap: 8px;
  }
  .sidebar-brand .logo-mark {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 26px;
    color: var(--accent);
    line-height: 1;
  }
  .sidebar-brand .logo-text {
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.2px;
  }
  .sidebar-brand .logo-sub {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-on-dark-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-left: auto;
    align-self: center;
    padding: 3px 6px;
    border: 1px solid #2A2E33;
    border-radius: 3px;
  }
  .sidebar-section-label {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-on-dark-muted);
    padding: 18px 22px 8px;
  }
  .nav { display: flex; flex-direction: column; padding: 0 12px; gap: 1px; }
  .nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    color: var(--text-on-dark);
    text-decoration: none;
    border-radius: 5px;
    font-size: 13.5px;
    font-weight: 400;
    cursor: pointer;
    transition: background 0.15s ease;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-family: var(--font-sans);
  }
  .nav-item:hover { background: var(--bg-sidebar-hover); }
  .nav-item.active {
    background: var(--bg-sidebar-active);
    font-weight: 500;
  }
  .nav-item.active::before {
    content: '';
    width: 3px; height: 14px;
    background: var(--accent);
    border-radius: 2px;
    margin-left: -12px;
    margin-right: 9px;
  }
  .nav-icon {
    width: 16px; height: 16px;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--text-on-dark-muted);
    flex-shrink: 0;
  }
  .nav-item.active .nav-icon { color: var(--accent); }
  .nav-badge {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 10px;
    background: #1F2329;
    color: var(--text-on-dark-muted);
    padding: 2px 6px;
    border-radius: 3px;
  }

  .sidebar-footer {
    margin-top: auto;
    padding: 14px 18px;
    border-top: 1px solid #1F2329;
    display: flex; align-items: center; gap: 10px;
  }
  .avatar {
    width: 30px; height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #C99C0F);
    color: var(--on-accent);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 12px;
    flex-shrink: 0;
  }
  .sidebar-footer .who { display: flex; flex-direction: column; min-width: 0; }
  .sidebar-footer .name { font-size: 12.5px; font-weight: 500; }
  .sidebar-footer .role { font-size: 10.5px; color: var(--text-on-dark-muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.8px; }

  /* ---------- MAIN ---------- */
  .main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

  .topbar {
    height: 56px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 28px;
    gap: 16px;
    position: sticky; top: 0; z-index: 10;
  }
  .breadcrumb {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  .breadcrumb .sep { margin: 0 6px; color: var(--text-light); }
  .breadcrumb .current { color: var(--text); font-weight: 500; }
  .topbar-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
  .search-box {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 10px;
    width: 260px;
  }
  .search-box input {
    border: none; background: transparent; outline: none;
    font-family: var(--font-sans); font-size: 13px;
    flex: 1; color: var(--text);
  }
  .search-box .kbd {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-light);
    padding: 1px 5px;
    border: 1px solid var(--border-strong);
    border-radius: 3px;
  }
  .icon-btn {
    width: 32px; height: 32px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-card);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s;
  }
  .icon-btn:hover { background: var(--bg); color: var(--text); }

  /* ---------- CONTENT ---------- */
  .content {
    padding: 28px;
    flex: 1;
  }
  .page { display: none; }
  .page.active { display: block; animation: fadeIn 0.25s ease; }
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .page-header {
    display: flex; align-items: flex-end; justify-content: space-between;
    margin-bottom: 22px;
    gap: 20px;
    flex-wrap: wrap;
  }
  .page-title {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.5px;
  }
  .page-title em {
    font-style: italic;
    color: var(--accent-text);
  }
  .page-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 6px;
    max-width: 600px;
  }
  .page-actions { display: flex; gap: 8px; }

  /* ---------- BUTTONS ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    line-height: 1;
    text-decoration: none;
    color: inherit;
    background: transparent;
  }
  .btn-primary {
    background: var(--accent);
    color: var(--on-accent);
    border-color: var(--accent);
    font-weight: 600;
  }
  .btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
  .btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border-color: var(--border-strong);
  }
  .btn-secondary:hover { background: var(--bg); }
  .btn-ghost {
    background: transparent;
    color: var(--text-muted);
  }
  .btn-ghost:hover { background: var(--bg); color: var(--text); }
  .btn-sm { padding: 5px 10px; font-size: 12px; }
  .btn-danger { color: var(--danger); }
  .btn-danger:hover { background: var(--danger-soft); }

  /* ---------- CARDS ---------- */
  .card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
  .card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px;
  }
  .card-title {
    font-size: 14px;
    font-weight: 600;
  }
  .card-subtitle {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
  }
  .card-body { padding: 20px; }

  /* ---------- STAT CARDS ---------- */
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 24px;
  }
  .stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    position: relative;
    overflow: hidden;
  }
  .stat-card .stat-label {
    font-family: var(--font-mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 10px;
  }
  .stat-card .stat-value {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.5px;
  }
  .stat-card .stat-meta {
    margin-top: 8px;
    font-size: 11.5px;
    color: var(--text-muted);
    display: flex; align-items: center; gap: 4px;
  }
  .stat-card .stat-meta.up { color: var(--success); }
  .stat-card .stat-meta.down { color: var(--danger); }
  .stat-card .accent-bar {
    position: absolute; top: 0; left: 0; bottom: 0;
    width: 3px; background: var(--accent);
  }

  /* ---------- TABLES ---------- */
  .table-wrap { overflow-x: auto; }
  table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
  }
  thead th {
    text-align: left;
    padding: 11px 18px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
  }
  tbody td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
  }
  tbody tr:last-child td { border-bottom: none; }
  tbody tr:hover { background: rgba(247,245,240,0.5); }
  td .primary-text { font-weight: 500; }
  td .secondary-text { color: var(--text-muted); font-size: 12px; margin-top: 2px; }
  td.mono { font-family: var(--font-mono); font-size: 12px; }
  td.right { text-align: right; }
  td.amount { font-family: var(--font-mono); font-weight: 500; }

  /* ---------- BADGES ---------- */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    font-family: var(--font-sans);
    line-height: 1.4;
  }
  .badge-success { background: var(--success-soft); color: var(--success); }
  .badge-warning { background: var(--warning-soft); color: var(--warning); }
  .badge-danger  { background: var(--danger-soft); color: var(--danger); }
  .badge-neutral { background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); }
  .badge-accent  { background: var(--accent-soft); color: var(--accent-text); }
  .badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

  /* ---------- ACCESS KEY ---------- */
  .access-key {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 8px;
    color: var(--text-muted);
    max-width: 220px;
  }
  .access-key .key-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .access-key button {
    background: none; border: none; cursor: pointer; padding: 0;
    color: var(--text-light); display: flex; align-items: center;
    transition: color 0.15s;
  }
  .access-key button:hover { color: var(--accent-text); }

  /* ---------- GATEWAY CARDS GRID ---------- */
  .gateway-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
  }
  .gateway-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    position: relative;
    transition: border-color 0.15s, transform 0.15s;
    cursor: pointer;
  }
  .gateway-card:hover { border-color: var(--border-strong); }
  .gateway-card.is-default { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
  .gateway-card .gw-header {
    display: flex; align-items: flex-start; justify-content: space-between;
    margin-bottom: 14px; gap: 10px;
  }
  .gateway-card .gw-logo {
    width: 38px; height: 38px;
    border-radius: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-serif);
    font-size: 19px;
    font-style: italic;
    flex-shrink: 0;
  }
  .gateway-card h3 { font-size: 14.5px; font-weight: 600; margin-bottom: 2px; }
  .gateway-card .gw-type {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
  }
  .gateway-card .gw-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 14px 0;
    padding: 12px 0;
    border-top: 1px dashed var(--border);
    border-bottom: 1px dashed var(--border);
  }
  .gateway-card .gw-stat-label {
    font-size: 10.5px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-family: var(--font-mono);
  }
  .gateway-card .gw-stat-value {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    margin-top: 2px;
  }
  .gateway-card .gw-footer {
    display: flex; align-items: center; justify-content: space-between;
  }

  /* ---------- FILTER BAR ---------- */
  .filter-bar {
    display: flex; gap: 8px; align-items: center;
    margin-bottom: 14px; flex-wrap: wrap;
  }
  .filter-chip {
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
    display: inline-flex; align-items: center; gap: 5px;
  }
  .filter-chip:hover { border-color: var(--border-strong); }
  .filter-chip.active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
  }

  /* ---------- MODAL ---------- */
  .modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(11,13,16,0.4);
    z-index: 100;
    display: none;
    align-items: center; justify-content: center;
    padding: 20px;
    backdrop-filter: blur(2px);
  }
  .modal-backdrop.open { display: flex; }
  .modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 100%; max-width: 560px;
    max-height: 90vh; overflow-y: auto;
    box-shadow: 0 20px 60px rgba(11,13,16,0.2);
    animation: modalIn 0.2s ease;
  }
  .modal.wide { max-width: 720px; }
  @keyframes modalIn {
    from { opacity: 0; transform: scale(0.96) translateY(8px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
  }
  .modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 16px;
  }
  .modal-title {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.1;
  }
  .modal-subtitle {
    font-size: 12.5px;
    color: var(--text-muted);
    margin-top: 4px;
  }
  .modal-close {
    width: 28px; height: 28px;
    border-radius: 5px;
    border: 1px solid var(--border);
    background: transparent;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    flex-shrink: 0;
  }
  .modal-close:hover { background: var(--bg); }
  .modal-body { padding: 22px 24px; }
  .modal-footer {
    padding: 14px 24px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: flex-end; gap: 8px;
    background: var(--bg);
  }

  /* ---------- FORMS ---------- */
  .form-group { margin-bottom: 16px; }
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
  }
  label .req { color: var(--accent-text); }
  label .hint { font-weight: 400; color: var(--text-muted); margin-left: 4px; }
  input[type=text], input[type=email], input[type=number], input[type=password], select, textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 13px;
    background: var(--bg-card);
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
  }
  input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
  }
  input.mono { font-family: var(--font-mono); font-size: 12.5px; }
  textarea { resize: vertical; min-height: 70px; }
  select {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B6A63' stroke-width='2'><polyline points='6 9 12 15 18 9'/></svg>");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 32px;
  }

  /* Checkbox toggle (rows of gateways) */
  .toggle-list { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
  .toggle-row {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
  }
  .toggle-row:last-child { border-bottom: none; }
  .toggle-row:hover { background: var(--bg); }
  .toggle-row input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--accent); }
  .toggle-row input[type=radio] { width: 16px; height: 16px; accent-color: var(--accent); }
  .toggle-row .tr-main { flex: 1; }
  .toggle-row .tr-title { font-size: 13px; font-weight: 500; }
  .toggle-row .tr-sub { font-size: 11.5px; color: var(--text-muted); font-family: var(--font-mono); }

  /* ---------- ALERT / EMPTY STATES ---------- */
  .alert {
    padding: 12px 14px;
    border-radius: var(--radius);
    font-size: 12.5px;
    display: flex; gap: 10px;
    margin-bottom: 14px;
  }
  .alert-info {
    background: var(--accent-soft);
    color: var(--accent-text);
    border-left: 3px solid var(--accent);
  }

  /* ---------- TOPUP SPECIFIC ---------- */
  .topup-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
  }
  .amount-input {
    position: relative;
    display: flex; align-items: center;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-card);
  }
  .amount-input:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
  }
  .amount-input .currency {
    padding: 0 12px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    background: var(--bg);
    align-self: stretch;
    display: flex; align-items: center;
    border-right: 1px solid var(--border);
  }
  .amount-input input {
    border: none; padding: 12px 14px;
    font-size: 22px;
    font-family: var(--font-serif);
    font-weight: 400;
    flex: 1;
    background: transparent;
  }
  .amount-input input:focus { box-shadow: none; }
  .quick-amounts {
    display: flex; gap: 6px; margin-top: 8px;
    flex-wrap: wrap;
  }
  .quick-amount {
    padding: 5px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    cursor: pointer;
  }
  .quick-amount:hover { border-color: var(--accent); color: var(--accent-text); background: var(--accent-soft); }

  .summary-card {
    background: var(--bg-sidebar);
    color: var(--text-on-dark);
    border-radius: var(--radius-lg);
    padding: 22px;
    position: relative;
    overflow: hidden;
  }
  .summary-card::before {
    content: '';
    position: absolute;
    top: -40%; right: -20%;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(245,197,24,0.28), transparent 70%);
    pointer-events: none;
  }
  .summary-card h4 {
    font-family: var(--font-mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-on-dark-muted);
    margin-bottom: 8px;
  }
  .summary-card .summary-row {
    display: flex; justify-content: space-between;
    padding: 9px 0;
    border-bottom: 1px dashed #2A2E33;
    font-size: 13px;
  }
  .summary-card .summary-row:last-child { border-bottom: none; }
  .summary-card .label { color: var(--text-on-dark-muted); }
  .summary-card .value { font-family: var(--font-mono); }
  .summary-card .total {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #2A2E33;
    display: flex; justify-content: space-between; align-items: baseline;
  }
  .summary-card .total .value {
    font-family: var(--font-serif);
    font-size: 30px;
    color: var(--accent);
  }

  /* ---------- CREDIT BAR ---------- */
  .credit-bar {
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
  }
  .credit-bar .fill {
    height: 100%;
    border-radius: 3px;
    background: var(--success);
    transition: width 0.3s;
  }
  .credit-bar.medium .fill { background: var(--warning); }
  .credit-bar.high .fill { background: var(--danger); }

  /* ---------- UTIL ---------- */
  .flex { display: flex; }
  .gap-2 { gap: 8px; }
  .gap-3 { gap: 12px; }
  .items-center { align-items: center; }
  .mt-2 { margin-top: 8px; }
  .mt-3 { margin-top: 12px; }
  .mb-3 { margin-bottom: 12px; }
  .text-muted { color: var(--text-muted); }
  .text-sm { font-size: 12px; }
  .text-mono { font-family: var(--font-mono); }

  /* ---------- WHATSAPP TABS ---------- */
  .wa-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
    padding-bottom: 0;
  }
  .wa-tab {
    background: none;
    border: none;
    padding: 10px 18px;
    font-family: var(--font-sans);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    margin-bottom: -1px;
    border-bottom: 2px solid transparent;
    transition: color 0.15s;
  }
  .wa-tab:hover { color: var(--text); }
  .wa-tab.active {
    color: var(--text);
    border-bottom-color: var(--accent);
  }
  .wa-tab .tab-count {
    margin-left: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 10px;
    color: var(--text-muted);
  }
  .wa-tab.active .tab-count {
    background: var(--accent-soft);
    color: var(--accent-text);
  }
  .wa-pane { display: none; }
  .wa-pane.active { display: block; }

  /* ---------- CHAT LAYOUT ---------- */
  .chat-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: calc(100vh - 220px);
    min-height: 540px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
  }
  .conv-list {
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    min-width: 0;
  }
  .conv-search {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
  }
  .conv-search input {
    width: 100%;
    padding: 7px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 12.5px;
  }
  .conv-items {
    overflow-y: auto;
    flex: 1;
  }
  .conv-item {
    display: flex;
    gap: 11px;
    padding: 13px 14px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.12s;
    align-items: flex-start;
  }
  .conv-item:hover { background: var(--bg); }
  .conv-item.active {
    background: var(--accent-soft);
  }
  .conv-item.active::before {
    content: '';
    width: 3px;
    background: var(--accent);
    margin-left: -14px;
    margin-right: 11px;
    align-self: stretch;
  }
  .conv-avatar {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4A4A4A, #2A2A2A);
    color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
  }
  .conv-avatar.c1 { background: linear-gradient(135deg, #6B7BFF, #4458D8); }
  .conv-avatar.c2 { background: linear-gradient(135deg, #FF7B6B, #D84845); }
  .conv-avatar.c3 { background: linear-gradient(135deg, #6BD8A8, #2A9D6F); }
  .conv-avatar.c4 { background: linear-gradient(135deg, #FFB66B, #D88A2A); }
  .conv-avatar.c5 { background: linear-gradient(135deg, #B66BFF, #8A2AD8); }
  .conv-body {
    flex: 1;
    min-width: 0;
  }
  .conv-row1 {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 6px;
  }
  .conv-name {
    font-size: 13.5px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .conv-time {
    font-size: 10.5px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    flex-shrink: 0;
  }
  .conv-row2 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 3px;
    gap: 6px;
  }
  .conv-preview {
    font-size: 12px;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
  }
  .conv-unread {
    background: var(--accent);
    color: var(--on-accent);
    font-size: 10px;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    font-family: var(--font-mono);
    flex-shrink: 0;
  }
  .conv-phone {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-light);
    margin-top: 2px;
  }

  /* ---------- CHAT PANE ---------- */
  .chat-pane {
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: #FBFAF5;
  }
  .chat-header {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    flex-shrink: 0;
  }
  .chat-header .conv-avatar { width: 34px; height: 34px; font-size: 12px; }
  .chat-header-info {
    flex: 1;
    min-width: 0;
  }
  .chat-header-info .name {
    font-size: 14px;
    font-weight: 600;
  }
  .chat-header-info .meta {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 1px;
  }
  .chat-header-actions {
    display: flex;
    gap: 6px;
  }

  .messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    background-image:
      radial-gradient(circle at 10% 10%, rgba(245,197,24,0.04) 0, transparent 200px),
      radial-gradient(circle at 90% 90%, rgba(245,197,24,0.04) 0, transparent 200px);
  }
  .msg-day {
    text-align: center;
    margin: 14px 0 10px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
  }
  .msg-day span {
    background: var(--bg-card);
    padding: 4px 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
  }
  .message {
    max-width: 70%;
    padding: 9px 13px 7px;
    font-size: 13.5px;
    line-height: 1.45;
    border-radius: 12px;
    word-wrap: break-word;
    position: relative;
  }
  .message .msg-time {
    font-size: 10px;
    font-family: var(--font-mono);
    color: var(--text-light);
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 3px;
    justify-content: flex-end;
  }
  .message.in {
    align-self: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-bottom-left-radius: 3px;
  }
  .message.out {
    align-self: flex-end;
    background: var(--accent-soft);
    border: 1px solid #F5E5A8;
    border-bottom-right-radius: 3px;
  }
  .message.out .msg-time { color: var(--accent-text); }
  .msg-tick { color: var(--success); font-size: 11px; }

  .composer {
    border-top: 1px solid var(--border);
    padding: 12px 16px;
    background: var(--bg-card);
    display: flex;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
  }
  .composer-input {
    flex: 1;
    border: 1px solid var(--border-strong);
    border-radius: 18px;
    padding: 9px 14px;
    font-family: var(--font-sans);
    font-size: 13.5px;
    background: var(--bg);
    resize: none;
    max-height: 120px;
    min-height: 38px;
    line-height: 1.4;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
  }
  .composer-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
    background: var(--bg-card);
  }
  .composer-btn {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--on-accent);
    border: none;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: background 0.15s;
  }
  .composer-btn:hover { background: var(--accent-hover); }
  .composer-icon-btn {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .composer-icon-btn:hover { background: var(--bg); color: var(--text); }

  .wa-template-bar {
    padding: 8px 16px;
    border-top: 1px solid var(--border);
    background: var(--bg);
    display: flex;
    gap: 6px;
    overflow-x: auto;
    flex-shrink: 0;
  }
  .wa-template-chip {
    padding: 5px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    font-size: 11.5px;
    white-space: nowrap;
    cursor: pointer;
    color: var(--text-muted);
    flex-shrink: 0;
  }
  .wa-template-chip:hover { color: var(--accent-text); border-color: var(--accent); }

  /* ---------- WHATSAPP CONFIG ---------- */
  .wa-config-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 18px;
  }
  .field-with-copy {
    display: flex;
    gap: 6px;
  }
  .field-with-copy input { flex: 1; }
  .copy-btn {
    padding: 0 14px;
    background: var(--bg);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
    display: flex; align-items: center; gap: 5px;
  }
  .copy-btn:hover { background: var(--bg-card); color: var(--text); border-color: var(--text); }
  .event-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 14px;
  }
  .event-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
  }
  .event-row input { width: 15px; height: 15px; accent-color: var(--accent); }
  .event-row .ev-label { font-size: 12.5px; }
  .event-row .ev-mono { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }

  .wa-status-card {
    background: var(--bg-sidebar);
    color: var(--text-on-dark);
    border-radius: var(--radius-lg);
    padding: 20px;
    position: sticky;
    top: 80px;
    align-self: flex-start;
  }
  .wa-status-card h4 {
    font-family: var(--font-mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-on-dark-muted);
    margin-bottom: 14px;
  }
  .wa-status-row {
    display: flex;
    justify-content: space-between;
    padding: 9px 0;
    border-bottom: 1px dashed #2A2A2A;
    font-size: 12.5px;
  }
  .wa-status-row:last-child { border-bottom: none; }
  .wa-status-row .label { color: var(--text-on-dark-muted); }
  .wa-status-row .value { font-family: var(--font-mono); font-size: 11.5px; }
  .wa-status-row .value.ok { color: #6BD89F; }
  .wa-status-row .value.warn { color: #FACC15; }


  @media (max-width: 1000px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .topup-layout { grid-template-columns: 1fr; }
    .wa-config-grid { grid-template-columns: 1fr; }
    .chat-layout { grid-template-columns: 260px 1fr; }
    .sidebar { width: 64px; }
    .sidebar-brand .logo-text, .sidebar-brand .logo-sub,
    .sidebar-section-label, .nav-item span:not(.nav-icon):not(.nav-badge),
    .nav-badge, .sidebar-footer .who { display: none; }
    .nav-item { justify-content: center; }
    .search-box { width: 180px; }
  }
/* ---------- DETAIL PAGE ---------- */
.back-link {
  margin-bottom: 14px;
}
.back-link a {
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 0;
  transition: color 0.15s;
}
.back-link a:hover { color: var(--accent-text); }

.gateway-detail-header {
  display: flex;
  align-items: center;
  gap: 16px;
}
.gw-logo-lg {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-size: 32px;
  font-style: italic;
  flex-shrink: 0;
}
.meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.meta-row .meta-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 18px;
  align-items: flex-start;
}
.detail-main > .card { margin-bottom: 16px; }
.detail-main > .card:last-child { margin-bottom: 0; }
.detail-side > * { margin-bottom: 16px; }
.detail-side > *:last-child { margin-bottom: 0; }

/* Read-only / editable field state */
.config-field {
  margin-bottom: 16px;
}
.config-field label {
  display: block;
  font-size: 10.5px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.9px;
  color: var(--text-muted);
  margin-bottom: 5px;
  font-weight: 500;
}
.config-field label .hint {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  margin-left: 4px;
}
.config-field input,
.config-field select,
.config-field textarea {
  width: 100%;
  padding: 8px 0;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 5px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  transition: all 0.15s;
}
.config-field input.mono,
.config-field textarea.mono {
  font-family: var(--font-mono);
  font-size: 13px;
}
.config-field input[readonly],
.config-field select[disabled],
.config-field textarea[readonly] {
  background: transparent;
  border-color: transparent;
  cursor: default;
  outline: none;
}

.config-card.editing {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-soft);
}
.config-card.editing .config-field input,
.config-card.editing .config-field select,
.config-card.editing .config-field textarea {
  background: var(--bg-card);
  border-color: var(--border-strong);
  padding: 8px 11px;
}
.config-card.editing .config-field input:focus,
.config-card.editing .config-field select:focus,
.config-card.editing .config-field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  outline: none;
}
.config-card.editing select { appearance: auto; }

.edit-controls {
  display: flex;
  gap: 6px;
}

.config-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 22px;
}

/* Partner list */
.partner-list {
  display: flex;
  flex-direction: column;
}
.partner-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border-bottom: 1px solid var(--border);
}
.partner-row:last-child { border-bottom: none; }
.partner-row:hover { background: var(--bg); }
.partner-row .avatar { width: 28px; height: 28px; font-size: 10px; }
.partner-row .pr-info { flex: 1; min-width: 0; }
.partner-row .pr-name { font-size: 13px; font-weight: 500; }
.partner-row .pr-meta { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); margin-top: 1px; }

/* Activity log rows */
.log-row {
  padding: 11px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12.5px;
}
.log-row:last-child { border-bottom: none; }
.log-row .log-icon {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  margin-top: 7px;
  flex-shrink: 0;
}
.log-row.bounced .log-icon { background: var(--danger); }
.log-row.deferred .log-icon { background: var(--warning); }
.log-row .log-body { flex: 1; min-width: 0; }
.log-row .log-to { font-family: var(--font-mono); font-size: 12px; }
.log-row .log-subj { color: var(--text-muted); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log-row .log-time { color: var(--text-muted); font-family: var(--font-mono); font-size: 10.5px; flex-shrink: 0; margin-top: 2px; }

/* Section header inside cards */
.section-divider {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 12px 0 8px;
  margin-top: 8px;
  border-top: 1px dashed var(--border);
  font-weight: 500;
}
.config-card .card-body > .section-divider:first-child {
  margin-top: 0;
  border-top: none;
  padding-top: 0;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--text);
  color: var(--bg-card);
  padding: 11px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(10,10,10,0.25);
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.25s ease;
  display: flex; align-items: center; gap: 6px;
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}
.toast .toast-icon {
  width: 16px; height: 16px;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .detail-layout { grid-template-columns: 1fr; }
  .config-grid-2 { grid-template-columns: 1fr; }
}

/* ============================================================
   PHP app additions: alerts, toggle list, credit bars, summary rows
   ============================================================ */

.alert {
  padding: 11px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 14px;
}
.alert-info {
  background: var(--accent-soft);
  color: var(--accent-text, #5C4500);
  border-left: 3px solid var(--accent);
}

.toggle-list {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}
.toggle-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  cursor: pointer;
}
.toggle-row:last-child { border-bottom: 0; }
.toggle-row:hover { background: var(--bg-soft, #FAFAF7); }
.toggle-row input[type=checkbox] { accent-color: var(--accent); }
.tr-main { flex: 1; }
.tr-title { font-weight: 500; }
.tr-sub { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.6px; }

.credit-bar {
  width: 130px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.credit-bar .fill {
  height: 100%;
  background: var(--success);
  transition: width 0.3s ease;
}

.summary-row {
  display: flex; justify-content: space-between;
  padding: 8px 0;
  font-size: 13px;
}
.summary-row .label { color: var(--text-muted); }
.summary-row .value { font-family: var(--font-mono); font-weight: 500; }

.quick-amounts {
  display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px;
}
.quick-amounts .filter-chip {
  cursor: pointer; user-select: none;
}

.checkbox-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
}
.checkbox-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12.5px;
  cursor: pointer;
}
.checkbox-row input[type=checkbox] { accent-color: var(--accent); }

.modal.wide { max-width: 720px; }

.req { color: var(--danger); }
.hint { color: var(--text-muted); font-weight: 400; font-size: 11px; }

/* Inline access key style (partners table) */
.access-key {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 8px;
  background: var(--bg-soft, #FAFAF7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
}
.access-key button {
  background: none; border: 0; padding: 2px 4px; cursor: pointer;
  color: var(--text-muted); border-radius: 3px;
}
.access-key button:hover { color: var(--text); background: var(--border); }

.btn-danger { color: var(--danger) !important; }

/* Mobile back link */
.back-link {
  margin-bottom: 12px;
  font-size: 12.5px;
}
.back-link a { color: var(--text-muted); text-decoration: none; }
.back-link a:hover { color: var(--text); }