:root {
    --primary: #0a192f;
    --accent: #fdbb2d;
    --success: #10b981;
    --danger: #ef4444;
    --info: #3b82f6;
    --bg: #0f172a;
    --card: #1e293b;
    --border: #334155;
    --text: #e2e8f0;
    --muted: #94a3b8;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }

  body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
  }

  /* ===== LOGIN ===== */
  #login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at top left, #1e3a5f 0%, #0a192f 60%, #000 100%);
  }

  .login-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.5);
    text-align: center;
  }

  .login-box .brand {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 6px;
    color: white;
  }
  .login-box .brand span { color: var(--accent); }
  .login-box .subtitle { color: var(--muted); font-size: 0.85rem; margin-bottom: 32px; }

  .login-box input {
    width: 100%;
    padding: 14px 16px;
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 1rem;
    margin-bottom: 14px;
    outline: none;
    transition: 0.2s;
  }
  .login-box input:focus { border-color: var(--accent); }

  .login-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: #0a192f;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    transition: 0.2s;
    margin-top: 6px;
  }
  .login-btn:hover { background: #ffc94d; transform: translateY(-1px); }

  .login-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 12px;
    display: none;
  }

  /* ===== DASHBOARD ===== */
  #dashboard { display: none; }

  .topbar {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .topbar .brand { font-weight: 800; font-size: 1.1rem; }
  .topbar .brand span { color: var(--accent); }
  .topbar-right { display: flex; align-items: center; gap: 16px; }
  .badge-live { background: var(--success); color: white; font-size: 0.7rem; font-weight: 700; padding: 3px 10px; border-radius: 20px; animation: pulse 2s infinite; }
  @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.5} }
  .logout-btn { background: none; border: 1px solid var(--border); color: var(--muted); padding: 6px 14px; border-radius: 6px; cursor: pointer; font-size: 0.85rem; transition: 0.2s; }
  .logout-btn:hover { border-color: var(--danger); color: var(--danger); }

  .tabs {
    display: flex;
    gap: 4px;
    padding: 16px 28px 0;
    border-bottom: 1px solid var(--border);
    background: var(--card);
  }
  .tab {
    padding: 10px 20px;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
    border: 1px solid transparent;
    border-bottom: none;
    transition: 0.2s;
  }
  .tab.active {
    background: var(--bg);
    color: var(--accent);
    border-color: var(--border);
  }
  .tab:hover:not(.active) { color: var(--text); }

  .content { padding: 28px; max-width: 1300px; margin: 0 auto; }
  .section { display: none; }
  .section.active { display: block; }

  /* KPI Cards */
  .kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-bottom: 28px; }
  .kpi-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px 24px;
    position: relative;
    overflow: hidden;
  }
  .kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); }
  .kpi-card.green::before { background: var(--success); }
  .kpi-card.blue::before { background: var(--info); }
  .kpi-card.red::before { background: var(--danger); }
  .kpi-label { font-size: 0.78rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
  .kpi-value { font-size: 2.2rem; font-weight: 800; color: white; line-height: 1; }
  .kpi-sub { font-size: 0.8rem; color: var(--muted); margin-top: 6px; }
  .kpi-trend { position: absolute; top: 22px; right: 22px; font-size: 1.6rem; opacity: 0.2; }

  /* Chart cards */
  .chart-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; margin-bottom: 28px; }
  .chart-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
  }
  .chart-card h3 { font-size: 0.95rem; color: var(--text); margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
  .chart-card canvas { max-height: 240px; }

  /* Table */
  .table-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 28px;
    overflow-x: auto;
  }
  .table-card h3 { font-size: 0.95rem; color: var(--text); margin-bottom: 18px; }
  table { width: 100%; border-collapse: collapse; }
  th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
  td { padding: 12px 14px; border-bottom: 1px solid rgba(51,65,85,0.4); font-size: 0.9rem; }
  tr:last-child td { border-bottom: none; }
  tr:hover td { background: rgba(255,255,255,0.02); }
  .badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; }
  .badge.ct { background: rgba(16,185,129,0.15); color: var(--success); }
  .badge.conv { background: rgba(59,130,246,0.15); color: var(--info); }
  .badge.pack { background: rgba(253,187,45,0.15); color: var(--accent); }

  /* Visitor map area */
  .map-placeholder {
    background: #0d1b2e;
    border-radius: 10px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.85rem;
    border: 1px dashed var(--border);
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
  }

  /* Clicks log */
  .clicks-log { max-height: 300px; overflow-y: auto; }
  .click-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(51,65,85,0.4);
    font-size: 0.85rem;
  }
  .click-item:last-child { border-bottom: none; }
  .click-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
  .click-dot.wa { background: #25d366; }
  .click-dot.form { background: var(--info); }
  .click-time { color: var(--muted); min-width: 80px; font-size: 0.8rem; }
  .click-desc { flex: 1; color: var(--text); }
  .click-loc { color: var(--muted); font-size: 0.8rem; }

  /* Settings */
  .settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .settings-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
  }
  .settings-card h3 { font-size: 0.95rem; color: var(--text); margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
  .settings-field { margin-bottom: 16px; }
  .settings-field label { display: block; font-size: 0.82rem; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
  .settings-field input, .settings-field select {
    width: 100%;
    padding: 11px 14px;
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.9rem;
    outline: none;
    transition: 0.2s;
  }
  .settings-field input:focus { border-color: var(--accent); }
  .save-btn {
    padding: 10px 22px;
    background: var(--accent);
    color: #0a192f;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    font-size: 0.9rem;
    transition: 0.2s;
  }
  .save-btn:hover { background: #ffc94d; }

  /* Alert banner */
  .alert-banner {
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.3);
    color: var(--success);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    display: none;
    margin-top: 10px;
  }

  /* Recovery modal */
  .modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.8);
    display: flex; align-items: center; justify-content: center;
    z-index: 9999;
  }
  .modal-box {
    background: var(--card); border: 2px solid var(--accent);
    border-radius: 16px; padding: 36px 32px; max-width: 480px; width: 90%;
    text-align: center; box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  }
  .modal-box h2 { color: var(--accent); margin-bottom: 10px; font-size: 1.2rem; }
  .modal-box p { color: var(--muted); font-size: 0.88rem; line-height: 1.7; margin-bottom: 20px; }
  .recovery-code-display {
    font-family: 'Courier New', monospace;
    font-size: 1.3rem; font-weight: 800; letter-spacing: 2px;
    color: white; background: #0f172a; border: 1px solid var(--border);
    border-radius: 10px; padding: 18px; margin-bottom: 20px;
    word-break: break-all; user-select: all;
  }
  .modal-warn {
    background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3);
    color: #fca5a5; border-radius: 8px; padding: 10px 14px;
    font-size: 0.82rem; margin-bottom: 20px; line-height: 1.6;
  }
  .modal-close-btn {
    background: var(--accent); color: #0a192f; border: none;
    border-radius: 8px; padding: 12px 28px; font-weight: 800;
    cursor: pointer; font-size: 1rem; transition: 0.2s;
  }
  .modal-close-btn:hover { background: #ffc94d; }
  @media (max-width: 768px) {
    .chart-grid { grid-template-columns: 1fr; }
    .settings-grid { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: 1fr 1fr; }
    .content { padding: 16px; }
  }