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

  html, body {
    height: 100%;
    overflow: hidden;
    background: #0d1117;
    color: #e6edf3;
    font-family: 'Segoe UI', Tahoma, sans-serif;
  }

  /* ── Login ── */
  #login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
  }
  .login-box {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 10px;
    padding: 40px;
    width: 340px;
    text-align: center;
  }
  .login-box h1 { font-size: 1.4rem; margin-bottom: 6px; color: #58a6ff; }
  .login-box p  { font-size: 0.85rem; color: #8b949e; margin-bottom: 28px; }
  .login-box input {
    width: 100%; padding: 10px 14px; margin-bottom: 14px;
    background: #0d1117; border: 1px solid #30363d; border-radius: 6px;
    color: #e6edf3; font-size: 0.95rem; text-align: right;
  }
  .login-box input:focus { outline: none; border-color: #58a6ff; }
  .login-box button {
    width: 100%; padding: 10px; background: #238636; border: none;
    border-radius: 6px; color: #fff; font-size: 1rem; cursor: pointer;
  }
  .login-box button:hover { background: #2ea043; }
  #login-error { color: #f85149; font-size: 0.85rem; margin-top: 10px; min-height: 18px; }

  /* ── Shell ── */
  #app {
    display: none;
    flex-direction: column;
    height: 100%;
  }

  /* ── Topbar ── */
  #topbar {
    flex: 0 0 auto;
    background: #161b22;
    border-bottom: 1px solid #30363d;
    padding: 0 20px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  #topbar h1 { font-size: 1rem; color: #58a6ff; letter-spacing: 0.02em; white-space: nowrap; }
  #session-badge {
    font-size: 0.78rem;
    padding: 3px 10px;
    border-radius: 10px;
    border: 1px solid #30363d;
    color: #8b949e;
    background: #0d1117;
    white-space: nowrap;
  }
  #session-badge.active { color: #3fb950; border-color: #238636; background: #0d2416; }
  #session-badge.inactive { color: #8b949e; }
  #logout-btn {
    padding: 5px 14px; background: transparent; border: 1px solid #30363d;
    border-radius: 6px; color: #8b949e; font-size: 0.82rem; cursor: pointer;
    white-space: nowrap;
  }
  #logout-btn:hover { border-color: #f85149; color: #f85149; }

  /* ── Body ── */
  #body {
    flex: 1 1 0;
    display: flex;
    overflow: hidden;
  }

  /* ── Sidebar ── */
  #sidebar {
    flex: 0 0 180px;
    background: #161b22;
    border-left: 1px solid #30363d;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 10px 0;
  }
  .cmd-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: none;
    border: none;
    color: #8b949e;
    font-size: 0.85rem;
    cursor: pointer;
    text-align: right;
    width: 100%;
    border-radius: 0;
    transition: background 0.1s, color 0.1s;
    white-space: nowrap;
  }
  .cmd-btn:hover { background: #21262d; color: #e6edf3; }
  .cmd-btn.active { background: #1f2937; color: #58a6ff; border-right: 3px solid #58a6ff; }
  .cmd-btn .cmd-icon { font-size: 1rem; flex-shrink: 0; }
  .sidebar-sep {
    border: none;
    border-top: 1px solid #21262d;
    margin: 6px 12px;
  }

  /* ── Main area ── */
  #main {
    flex: 1 1 0;
    overflow-y: auto;
    padding: 24px;
    background: #0d1117;
  }
  #main::-webkit-scrollbar { width: 4px; }
  #main::-webkit-scrollbar-track { background: transparent; }
  #main::-webkit-scrollbar-thumb { background: #30363d; border-radius: 2px; }

  .panel-title {
    font-size: 1rem;
    color: #58a6ff;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #21262d;
  }

  /* ── Form elements ── */
  .field { margin-bottom: 16px; }
  .field label { display: block; font-size: 0.82rem; color: #8b949e; margin-bottom: 6px; }
  .field input, .field select, .field textarea {
    width: 100%; padding: 9px 12px;
    background: #161b22; border: 1px solid #30363d; border-radius: 6px;
    color: #e6edf3; font-size: 0.9rem; font-family: inherit;
  }
  .field input:focus, .field select:focus, .field textarea:focus {
    outline: none; border-color: #58a6ff;
  }
  .field textarea { resize: vertical; min-height: 70px; }

  .btn {
    padding: 9px 20px; border: none; border-radius: 6px;
    cursor: pointer; font-size: 0.88rem; font-family: inherit;
    transition: opacity 0.15s;
  }
  .btn:disabled { opacity: 0.45; cursor: not-allowed; }
  .btn-primary  { background: #238636; color: #fff; }
  .btn-primary:hover:not(:disabled) { background: #2ea043; }
  .btn-danger   { background: #b91c1c; color: #fff; }
  .btn-danger:hover:not(:disabled)  { background: #dc2626; }
  .btn-secondary { background: #21262d; color: #e6edf3; border: 1px solid #30363d; }
  .btn-secondary:hover:not(:disabled) { background: #30363d; }
  .btn-blue { background: #1d4ed8; color: #fff; }
  .btn-blue:hover:not(:disabled) { background: #2563eb; }

  /* Type selector for /new */
  .type-grid { display: flex; gap: 12px; margin-bottom: 20px; }
  .type-card {
    flex: 1; padding: 18px 10px; background: #161b22; border: 2px solid #30363d;
    border-radius: 8px; text-align: center; cursor: pointer; transition: all 0.15s;
  }
  .type-card:hover { border-color: #58a6ff; background: #1a2232; }
  .type-card.selected { border-color: #58a6ff; background: #0d2847; }
  .type-card .tc-icon { font-size: 1.6rem; display: block; margin-bottom: 6px; }
  .type-card .tc-label { font-size: 0.85rem; color: #e6edf3; }

  /* Result card */
  .result-card {
    background: #161b22; border: 1px solid #238636; border-radius: 8px;
    padding: 16px; margin-top: 20px;
  }
  .result-card.error { border-color: #f85149; }
  .result-card.warning { border-color: #d29922; }
  .result-id { font-size: 1.1rem; color: #3fb950; font-weight: 600; margin-bottom: 8px; }
  .result-row { font-size: 0.82rem; color: #8b949e; margin-bottom: 4px; line-height: 1.5; }
  .result-row span { color: #e6edf3; }
  .result-thumb { margin-top: 12px; border-radius: 6px; overflow: hidden; border: 1px solid #30363d; max-width: 100%; }
  .result-thumb img { display: block; width: 100%; height: auto; }
  .result-links { margin-top: 10px; display: flex; gap: 10px; flex-wrap: wrap; }
  .result-link {
    font-size: 0.80rem; color: #58a6ff; text-decoration: none;
    padding: 4px 10px; border: 1px solid #1d4ed8; border-radius: 4px;
  }
  .result-link:hover { background: #1d4ed8; color: #fff; }

  /* Threats list */
  .threats-list { margin-top: 10px; }
  .threat-row {
    display: flex; gap: 8px; align-items: center;
    padding: 5px 0; border-bottom: 1px solid #21262d; font-size: 0.80rem;
  }
  .threat-row:last-child { border-bottom: none; }
  .risk-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  }
  .r5 { background: #f85149; }
  .r4 { background: #f97316; }
  .r3 { background: #eab308; }
  .r2 { background: #3fb950; }
  .r1 { background: #8b949e; }

  /* Confirm dialog overlay */
  .confirm-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6);
    display: flex; align-items: center; justify-content: center; z-index: 100;
  }
  .confirm-box {
    background: #161b22; border: 1px solid #30363d; border-radius: 10px;
    padding: 28px; width: 320px; text-align: center;
  }
  .confirm-box p { margin-bottom: 20px; color: #e6edf3; line-height: 1.5; }
  .confirm-box .btn-row { display: flex; gap: 10px; justify-content: center; }

  /* Users table */
  .data-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin-top: 10px; }
  .data-table th {
    background: #161b22; color: #8b949e; padding: 8px 10px;
    text-align: right; border-bottom: 1px solid #30363d; white-space: nowrap;
  }
  .data-table td { padding: 8px 10px; border-bottom: 1px solid #21262d; }
  .data-table tbody tr:hover td { background: #161b22; }
  .data-table .del-btn {
    padding: 3px 10px; font-size: 0.75rem; background: transparent;
    border: 1px solid #f85149; color: #f85149; border-radius: 4px; cursor: pointer;
  }
  .data-table .del-btn:hover { background: #f85149; color: #fff; }

  /* Report text */
  .report-text {
    background: #161b22; border: 1px solid #30363d; border-radius: 8px;
    padding: 16px; font-size: 0.85rem; line-height: 1.8; white-space: pre-wrap;
    margin-top: 12px; color: #e6edf3; direction: rtl;
  }

  /* Invite result */
  .invite-link-box {
    background: #0d2416; border: 1px solid #238636; border-radius: 8px;
    padding: 14px; margin-top: 16px; word-break: break-all;
    font-size: 0.85rem; color: #3fb950; direction: ltr; text-align: left;
  }

  /* Help */
  .help-section { margin-bottom: 20px; }
  .help-section h3 { font-size: 0.88rem; color: #58a6ff; margin-bottom: 8px; }
  .help-row {
    display: flex; gap: 12px; padding: 6px 0;
    border-bottom: 1px solid #21262d; font-size: 0.82rem;
  }
  .help-cmd { color: #3fb950; min-width: 130px; flex-shrink: 0; }
  .help-desc { color: #8b949e; }

  /* Spinner */
  .spinner {
    display: inline-block; width: 16px; height: 16px;
    border: 2px solid #30363d; border-top-color: #58a6ff;
    border-radius: 50%; animation: spin 0.7s linear infinite;
    vertical-align: middle; margin-left: 6px;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* Activity log */
  #log-bar {
    flex: 0 0 auto;
    background: #0d1117;
    border-top: 1px solid #21262d;
    height: 110px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  #ws-dot {
    display: inline-block; width: 7px; height: 7px;
    border-radius: 50%; background: #484f58;
    margin-left: 5px; vertical-align: middle;
    transition: background 0.3s;
  }
  #ws-dot.live         { background: #3fb950; }
  #ws-dot.reconnecting { background: #f85149; animation: wsPulse 1s infinite; }
  @keyframes wsPulse { 0%,100%{opacity:1} 50%{opacity:0.3} }

  #log-header {
    padding: 4px 16px;
    font-size: 0.70rem;
    color: #484f58;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid #21262d;
    flex-shrink: 0;
  }
  #log-list {
    flex: 1 1 0;
    overflow-y: auto;
    padding: 4px 16px;
  }
  #log-list::-webkit-scrollbar { width: 3px; }
  #log-list::-webkit-scrollbar-thumb { background: #30363d; }
  .log-entry {
    display: flex; gap: 10px; align-items: baseline;
    font-size: 0.75rem; padding: 2px 0; border-bottom: 1px solid #161b22;
  }
  .log-time { color: #484f58; flex-shrink: 0; font-variant-numeric: tabular-nums; }
  .log-msg  { color: #8b949e; }
  .log-ok   .log-msg { color: #3fb950; }
  .log-err  .log-msg { color: #f85149; }
  .log-info .log-msg { color: #58a6ff; }

  /* misc */
  .empty-state { color: #484f58; font-size: 0.85rem; padding: 20px 0; }
  .btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
  .section-sep { border: none; border-top: 1px solid #21262d; margin: 18px 0; }