:root {
    --bg: #10141C;
    --surface: #171C26;
    --surface-raised: #1D2330;
    --border: #2A3140;
    --text: #E4E7EC;
    --text-dim: #8891A3;
    --accent: #E8A33D;
    --accent-dim: rgba(232,163,61,0.15);
    --allow: #3FB68C;
    --block: #E5677A;
    --mono: 'IBM Plex Mono', ui-monospace, monospace;
    --sans: 'Inter', system-ui, sans-serif;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  }

  * { box-sizing: border-box; }

  html, body {
    margin: 0;
    height: 100vh;
    overflow: hidden;
  }
  body {
    background:
      radial-gradient(1200px 600px at 15% -10%, rgba(232,163,61,0.05), transparent 60%),
      radial-gradient(1000px 700px at 100% 0%, rgba(63,182,140,0.04), transparent 55%),
      var(--bg);
    color: var(--text);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
  }

  /* Scrollbars */
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb {
    background: var(--surface-raised);
    border: 2px solid var(--bg);
    border-radius: 8px;
  }
  ::-webkit-scrollbar-thumb:hover { background: #262E3F; }

  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
  }
  @keyframes scaleIn {
    from { opacity: 0; transform: scale(0.96) translateY(6px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
  }
  @keyframes shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position: 200% 0; }
  }
  @keyframes glowPulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.55; }
  }
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 28px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
    position: relative;
    z-index: 2;
  }

  .wordmark {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  }

  .wordmark .glyph {
  position: relative;
  width: 32px;
  height: 27.72px; /* Aspect ratio for a flat-topped (pointy sides) regular hexagon */
  display: inline-block;

  /* 3D Y-Axis Rotation (Flips horizontally in front of the viewer) */
  animation: rotateYHex 6s linear infinite;
  transform-style: preserve-3d;
}

/* Front Face (Yellow Accent) */
.wordmark .glyph::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent, #e8a33d);

  /* Clip path for a flat-topped hollow regular hexagon */
  clip-path: polygon(
    25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%,
    25% 0%,
    33% 15%, 15% 50%, 33% 85%, 67% 85%, 85% 50%, 67% 15%, 33% 15%
  );

  filter: drop-shadow(0 0 6px rgba(232, 163, 61, 0.65));
}

/* Back Face (Adds a 3D depth layer visible when spinning) */
.wordmark .glyph::before {
  content: '';
  position: absolute;
  inset: 0;
  background: #a36518; /* Darker accent tone for 3D thickness */
  transform: translateZ(-2px);

  clip-path: polygon(
    25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%,
    25% 0%,
    33% 15%, 15% 50%, 33% 85%, 67% 85%, 85% 50%, 67% 15%, 33% 15%
  );
}

/* Hover Effect */
.wordmark:hover .glyph {
  scale: 1.25;
  filter: drop-shadow(0 0 10px rgba(232, 163, 61, 0.95));
}

/* 3D Y-Axis Flip Rotation Keyframes */
@keyframes rotateYHex {
  0% {
    transform: rotateY(0deg);
  }
  100% {
    transform: rotateY(360deg);
  }
}

  .app-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
  }

  .sidebar {
    width: 210px;
    flex-shrink: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 22px 0;
    overflow-y: auto;
    position: relative;
    z-index: 2;
  }

  .sidebar .wordmark {
    padding: 0 24px;
    margin-bottom: 28px;
  }

  .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .nav-item {
    background: none;
    border: none;
    border-left: 3px solid transparent;
    border-radius: 0;
    color: var(--text-dim);
    font-family: var(--sans);
    font-weight: 500;
    font-size: 13.5px;
    text-align: left;
    padding: 11px 24px;
    cursor: pointer;
    position: relative;
    transition: color 0.2s var(--ease), border-left-color 0.25s var(--ease), background 0.25s var(--ease), padding-left 0.25s var(--ease);
  }
  .nav-item:hover { color: var(--text); border-left-color: var(--border); padding-left: 27px; }
  .nav-item:active { transform: scale(0.99); }
  .nav-item.active {
    color: var(--text);
    background: linear-gradient(90deg, rgba(232,163,61,0.09), transparent);
    border-left-color: var(--accent);
  }
  .nav-item:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }

  .status-group {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--text-dim);
    transition: color 0.3s var(--ease);
  }

  .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--text-dim);
    transition: background 0.3s var(--ease);
  }
  .dot.live {
    background: var(--accent);
    box-shadow: 0 0 0 0 rgba(232,163,61,0.6);
    animation: pulse 1.8s infinite;
  }
  @keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(232,163,61,0.5); }
    70%  { box-shadow: 0 0 0 7px rgba(232,163,61,0); }
    100% { box-shadow: 0 0 0 0 rgba(232,163,61,0); }
  }

  button {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 13px;
    border: 1px solid var(--border);
    background: var(--surface-raised);
    color: var(--text);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.12s var(--ease), box-shadow 0.2s var(--ease), color 0.2s var(--ease), opacity 0.2s var(--ease);
  }
  button:hover { border-color: var(--accent); box-shadow: 0 2px 10px rgba(0,0,0,0.25); transform: translateY(-1px); }
  button:active { transform: translateY(0) scale(0.97); box-shadow: none; }
  button:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; box-shadow: none !important; }
  button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  button.primary {
    background: linear-gradient(180deg, #EFAE4E, var(--accent));
    color: #1A1305;
    border-color: var(--accent);
    box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, 0 4px 14px rgba(232,163,61,0.18);
  }
  button.primary:hover { box-shadow: 0 1px 0 rgba(255,255,255,0.3) inset, 0 6px 18px rgba(232,163,61,0.32); transform: translateY(-1px); }
  button.danger:hover { border-color: var(--block); box-shadow: 0 2px 10px rgba(229,103,122,0.2); }

  .api-config {
    padding: 10px 28px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
  }
  .api-config input {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
    width: 220px;
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  }

  input, select, textarea {
    transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
  }
  input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 3px rgba(232,163,61,0.15);
  }

  .content-area {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
  }

  main {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 1px;
    background: var(--border);
    flex: 1;
    min-height: 0;
    overflow: hidden;
    animation: fadeIn 0.35s var(--ease-out);
  }
  @media (max-width: 900px) {
    main { grid-template-columns: 1fr; }
  }

  section {
    background: var(--bg);
    padding: 24px 28px;
    overflow-y: auto;
    min-height: 0;
    animation: fadeInUp 0.35s var(--ease-out);
  }

  .live-traffic-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden; /* the feed itself scrolls, not this whole panel */
  }

  h2 {
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin: 0 0 16px;
    position: relative;
    padding-left: 12px;
  }
  h2::before {
    content: '';
    position: absolute;
    left: 0; top: 2px; bottom: 2px;
    width: 3px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--accent), transparent);
  }

  form.add-rule {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
    margin-bottom: 18px;
    animation: fadeInUp 0.4s var(--ease-out);
  }
  form.add-rule select,
  form.add-rule input {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 7px 8px;
    border-radius: 5px;
    width: 100%;
  }
  form.add-rule button { grid-column: span 6; }

  table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--mono);
    font-size: 12.5px;
  }
  th, td {
    text-align: left;
    padding: 8px 6px;
    border-bottom: 1px solid var(--border);
  }
  th {
    color: var(--text-dim);
    font-weight: 500;
  }
  tbody tr { transition: background 0.15s var(--ease); animation: fadeIn 0.3s var(--ease-out); }
  tbody tr:hover { background: rgba(255,255,255,0.025); }

  td select, td input {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 4px 6px;
    border-radius: 4px;
    width: 100%;
  }
  td input[type="checkbox"] { width: auto; }

  .badge {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.03em;
    display: inline-block;
    transition: transform 0.15s var(--ease);
  }
  .badge.block { background: rgba(229,103,122,0.15); color: var(--block); }
  .badge.allow { background: rgba(63,182,140,0.15); color: var(--allow); }
  .badge.high { background: rgba(229,103,122,0.15); color: var(--block); }
  .badge.medium { background: rgba(232,163,61,0.15); color: var(--accent); }
  .badge.low { background: rgba(136,145,163,0.15); color: var(--text-dim); }

  .icon-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    padding: 2px 6px;
    font-size: 13px;
    transition: color 0.15s var(--ease), transform 0.15s var(--ease);
  }
  .icon-btn:hover { color: var(--block); border: none; transform: scale(1.15); box-shadow: none; }
  .icon-btn:active { transform: scale(0.95); }

  #feed {
    font-family: var(--mono);
    font-size: 12.5px;
    flex: 1;
    min-height: 300px;
    overflow-y: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 12px;
    contain: content;
  }
  #feed .line {
    padding: 3px 0;
    border-bottom: 1px dashed rgba(255,255,255,0.04);
    display: flex;
    gap: 10px;
    color: var(--text-dim);
    animation: fadeInUp 0.3s var(--ease-out);
  }
  #feed .line .verdict.block { color: var(--block); font-weight: 600; }
  #feed .line .verdict.allow { color: var(--allow); font-weight: 600; }
  #feed .empty { color: var(--text-dim); font-style: italic; animation: fadeIn 0.4s var(--ease-out); }

  .feed-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
  }
  .feed-filters select,
  .feed-filters input {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 12px;
    padding: 6px 8px;
    border-radius: 5px;
  }
  .feed-filters input#filterSearch { flex: 1; min-width: 120px; }
  .filter-check {
    display: flex;
    align-items: center;
    gap: 5px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
    white-space: nowrap;
  }
  .filter-count {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    white-space: nowrap;
  }

  .stats {
    display: flex;
    gap: 32px;
    padding: 16px 28px;
    border-top: 1px solid var(--border);
    background: var(--surface);
    font-family: var(--mono);
    flex-shrink: 0;
    animation: slideDown 0.35s var(--ease-out);
  }
  .stat { transition: transform 0.2s var(--ease); }
  .stat:hover { transform: translateY(-2px); }
  .stat .num { font-size: 22px; font-weight: 600; transition: color 0.2s var(--ease); font-variant-numeric: tabular-nums; display: inline-block; }
  .stat .num.bump { animation: statBump 0.35s var(--ease-out); }
  @keyframes statBump {
    0%   { transform: scale(1); }
    35%  { transform: scale(1.22); }
    100% { transform: scale(1); }
  }
  .stat.block .num { color: var(--block); }
  .stat.allow .num { color: var(--allow); }
  .stat.alert .num { color: var(--accent); }
  .stat .label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; }

  #feed .line.has-alert {
    background: rgba(232,163,61,0.08);
    border-bottom-color: rgba(232,163,61,0.25);
    animation: fadeInUp 0.3s var(--ease-out), glowPulse 2s ease-in-out 1;
  }
  .alert-tag {
    color: var(--accent);
    font-weight: 600;
    border: 1px solid rgba(232,163,61,0.4);
    border-radius: 4px;
    padding: 0 5px;
  }

  .app-tag {
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0 5px;
  }

  .charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
    gap: 24px;
  }
  .chart-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
    animation: scaleIn 0.4s var(--ease-out) backwards;
  }
  .chart-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(0,0,0,0.28);
    border-color: #333C50;
  }
  .charts-grid .chart-card:nth-child(1) { animation-delay: 0.02s; }
  .charts-grid .chart-card:nth-child(2) { animation-delay: 0.06s; }
  .charts-grid .chart-card:nth-child(3) { animation-delay: 0.10s; }
  .charts-grid .chart-card:nth-child(4) { animation-delay: 0.14s; }
  .charts-grid .chart-card:nth-child(5) { animation-delay: 0.18s; }
  .charts-grid .chart-card:nth-child(6) { animation-delay: 0.22s; }
  .charts-grid .chart-card:nth-child(7) { animation-delay: 0.26s; }
  .charts-grid .chart-card:nth-child(8) { animation-delay: 0.30s; }
  .charts-grid .chart-card:nth-child(9) { animation-delay: 0.34s; }
  .chart-card h3 {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 12px;
    font-weight: 500;
  }

  .status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
  }
  .status-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
    animation: scaleIn 0.4s var(--ease-out) backwards;
  }
  .status-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(0,0,0,0.28);
    border-color: #333C50;
  }
  .status-grid .status-card:nth-child(1) { animation-delay: 0.02s; }
  .status-grid .status-card:nth-child(2) { animation-delay: 0.08s; }
  .status-grid .status-card:nth-child(3) { animation-delay: 0.14s; }
  .status-card h3 {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 8px;
    font-weight: 500;
  }
  .status-percent {
    font-family: var(--mono);
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 14px;
    font-variant-numeric: tabular-nums;
    transition: color 0.3s var(--ease);
  }
  .status-bar {
    height: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
  }
  .status-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--allow);
    transition: width 0.6s var(--ease-out), background 0.4s var(--ease);
    background-image: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
    background-size: 200% 100%;
  }
  .status-sub {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-dim);
  }

  #loginScreen {
    position: fixed;
    inset: 0;
    background:
      radial-gradient(900px 500px at 20% 10%, rgba(232,163,61,0.07), transparent 60%),
      radial-gradient(900px 500px at 85% 90%, rgba(63,182,140,0.06), transparent 60%),
      var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
  }
  .login-card {
    width: 320px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,255,255,0.02) inset;
    animation: scaleIn 0.45s var(--ease-out);
  }
  .login-card .wordmark { justify-content: center; margin-bottom: 24px; }
  .login-card label {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 14px 0 6px;
  }
  .login-card input {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
    padding: 9px 10px;
    border-radius: 6px;
  }
  .login-card button { width: 100%; margin-top: 20px; padding: 10px; }

  .pw-label {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 14px 0 6px;
  }
  #changePasswordForm input {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
    padding: 9px 10px;
    border-radius: 6px;
  }
  .login-error {
    color: var(--block);
    font-family: var(--mono);
    font-size: 12px;
    margin-top: 12px;
    min-height: 16px;
    transition: opacity 0.2s var(--ease);
  }
  .login-error:empty { opacity: 0; }
  #appRoot { display: none; height: 100vh; animation: fadeIn 0.4s var(--ease-out); }