:root {
    --bg: #191127;
    --bg2: #180f26;
    --bg3: #23133a;
    --panel: #23133a;
    --panel2: #1f1232;
    --border: #3a1c63;
    --cyan: #883CF0;
    --cyan2: #7c3aed;
    --green: #8b5cf6;
    --orange: #b29dce;
    --red: #873cf09d;
    --yellow: #883CF0;
    --text: #c8e0f4;
    --text2: #e2eef7;
    --text3: #d6d6d6;
    --mono: 'Share Tech Mono', monospace;
    --display: 'Orbitron', sans-serif;
    --body: 'Rajdhani', sans-serif;
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    cursor: default;
  }

  /* SCANLINE OVERLAY */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(157, 0, 255, 0.015) 2px,
      rgba(149, 0, 255, 0.015) 4px
    );
    pointer-events: none;
    z-index: 1000;
  }

  /* GRID BG */
  .grid-bg {
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(174, 0, 255, 0.074) 1px, transparent 1px),
      linear-gradient(90deg, rgba(136, 0, 255, 0.062) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
  }

  /* HEADER */
  header {
    position: relative;
    z-index: 10;
    padding: 0 40px;
    border-bottom: 1px solid var(--border);
    background: #180f26;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    position: sticky;
    top: 0;
  }

  .logo {
    font-family: var(--display);
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 4px;
    color: var(--cyan2);
    text-shadow: 0 0 20px rgba(144, 0, 255, 0.5);
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo-dot {
    width: 8px;
    height: 8px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--green);
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
  }

  .header-tag {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text3);
    letter-spacing: 2px;
  }

  /* HERO */
  .hero {
    position: relative;
    z-index: 5;
    padding: 80px 40px 60px;
    text-align: center;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(136, 0, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
  }

  .hero-eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--cyan);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeUp 0.6s ease forwards 0.2s;
  }

  .hero-title {
    font-family: var(--display);
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.0;
    letter-spacing: -1px;
    color: #fff;
    margin-bottom: 16px;
    opacity: 0;
    animation: fadeUp 0.6s ease forwards 0.4s;
  }

  .hero-title span {
    color: var(--cyan2);
    text-shadow: 0 0 30px rgba(174, 0, 255, 0.4);
  }

  .hero-sub {
    font-size: 18px;
    color: var(--text2);
    font-weight: 300;
    max-width: 540px;
    margin: 0 auto 40px;
    opacity: 0;
    animation: fadeUp 0.6s ease forwards 0.6s;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* STATS */
  .stats-bar {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 30px 40px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg2);
    position: relative;
    z-index: 5;
    flex-wrap: wrap;
  }

  .stat {
    text-align: center;
  }

  .stat-num {
    font-family: var(--display);
    font-size: 32px;
    font-weight: 700;
    color: var(--cyan2);
    text-shadow: 0 0 20px rgba(187, 0, 255, 0.4);
    display: block;
  }

  .stat-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 2px;
    text-transform: uppercase;
  }

  /* SEARCH + FILTER */
  .controls {
    position: relative;
    z-index: 5;
    padding: 40px 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
  }

  .search-wrap {
    position: relative;
    flex: 1;
    min-width: 200px;
  }

  .search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: var(--text3);
    font-family: var(--mono);
  }

  .search-input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    background: var(--panel);
    border: 1px solid var(--border);
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    letter-spacing: 1px;
  }

  .search-input::placeholder { color: var(--text3); }

  .search-input:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 0 1px rgba(149, 0, 255, 0.2), inset 0 0 20px rgba(166, 0, 255, 0.03);
  }

  .filter-btn {
    padding: 12px 20px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text2);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
  }

  .filter-btn:hover { border-color: var(--cyan); color: var(--cyan); }
  .filter-btn.active {
    background: var(--cyan);
    border-color: var(--cyan);
    color: var(--bg);
  }

  /* ATTACK GRID */
  .attack-grid {
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1px;
    max-width: 1200px;
    margin: 40px auto;
    background: var(--border);
    border: 1px solid var(--border);
  }

  .attack-card {
    background: var(--panel);
    padding: 28px;
    cursor: pointer;
    transition: background 0.2s;
    position: relative;
    overflow: hidden;
    animation: fadeUp 0.5s ease forwards;
    opacity: 0;
  }

  .attack-card:nth-child(1) { animation-delay: 0.05s; }
  .attack-card:nth-child(2) { animation-delay: 0.1s; }
  .attack-card:nth-child(3) { animation-delay: 0.15s; }
  .attack-card:nth-child(4) { animation-delay: 0.2s; }
  .attack-card:nth-child(5) { animation-delay: 0.25s; }
  .attack-card:nth-child(6) { animation-delay: 0.3s; }
  .attack-card:nth-child(7) { animation-delay: 0.35s; }
  .attack-card:nth-child(8) { animation-delay: 0.4s; }
  .attack-card:nth-child(9) { animation-delay: 0.45s; }
  .attack-card:nth-child(10) { animation-delay: 0.5s; }
  .attack-card:nth-child(11) { animation-delay: 0.55s; }
  .attack-card:nth-child(12) { animation-delay: 0.6s; }
  .attack-card:nth-child(13) { animation-delay: 0.65s; }
  .attack-card:nth-child(14) { animation-delay: 0.7s; }

  .attack-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    opacity: 0;
    transition: opacity 0.2s;
  }

  .attack-card:hover { background: var(--panel2); }
  .attack-card:hover::before { opacity: 1; }

  .attack-card.severity-critical::before { background: var(--red); }
  .attack-card.severity-high::before { background: var(--orange); }
  .attack-card.severity-medium::before { background: var(--yellow); }

  .attack-card.active {
    background: var(--bg3);
    grid-column: 1 / -1;
  }

  .card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 12px;
  }

  .card-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    border: 1px solid var(--border);
    background: #1f1232;
  }

  .card-meta {
    flex: 1;
  }

  .card-id {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 2px;
    margin-bottom: 4px;
  }

  .card-title {
    font-family: var(--display);
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
    line-height: 1.3;
  }

  .severity-badge {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 2px;
    padding: 4px 8px;
    border: 1px solid;
    flex-shrink: 0;
    text-transform: uppercase;
  }

  .severity-badge.critical { color: var(--red); border-color: var(--red); background: #2a1647; }
  .severity-badge.high { color: var(--orange); border-color: var(--orange); background: #2a1647cd; }
  .severity-badge.medium { color: var(--yellow); border-color: var(--yellow); background: #2a164778; }

  .card-desc {
    font-size: 13px;
    color: var(--text2);
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 16px;
  }

  .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .tag {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text3);
    border: 1px solid var(--border);
    padding: 3px 8px;
    letter-spacing: 1px;
    text-transform: uppercase;
  }

  /* EXPAND DETAIL */
  .card-detail {
    display: none;
    margin-top: 28px;
    border-top: 1px solid var(--border);
    padding-top: 28px;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .attack-card.active .card-detail {
    display: grid;
  }

  .detail-section h4 {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
  }

  .kill-chain {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .kill-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px;
    background: #2a1647;
    border-left: 2px solid var(--border);
    transition: border-color 0.2s;
    font-size: 13px;
  }

  .kill-step:hover { border-left-color: var(--cyan); }

  .step-num {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--cyan);
    min-width: 24px;
    margin-top: 1px;
  }

  .step-text { color: var(--text2); }
  .step-title { color: var(--text); font-weight: 600; display: block; margin-bottom: 2px; }

  .indicators {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text2);
    font-family: var(--mono);
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
  }

  .indicator-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 6px var(--green);
    flex-shrink: 0;
  }

  .indicator-dot.warn { background: var(--orange); box-shadow: 0 0 6px var(--orange); }
  .indicator-dot.danger { background: var(--red); box-shadow: 0 0 6px var(--red); }

  .defenses {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 0;
  }

  .defense-item {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 13px;
    color: var(--text2);
    padding: 8px 0;
    border-bottom: 1px solid #3a1c63;
  }

  .defense-icon {
    color: var(--green);
    font-family: var(--mono);
    font-size: 12px;
    margin-top: 1px;
    flex-shrink: 0;
  }

  .card-expand-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--cyan);
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 1px solid #3a1c63;
    padding: 8px 14px;
    background: #1f1232;
    cursor: pointer;
    transition: all 0.2s;
  }

  .card-expand-btn:hover {
    background: #2a1647;
    border-color: var(--cyan);
  }

  .expand-arrow {
    transition: transform 0.3s;
    font-size: 12px;
  }

  .attack-card.active .expand-arrow {
    transform: rotate(180deg);
  }

  /* THREAT METER */
  .threat-meter {
    margin-top: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .meter-label {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text3);
    letter-spacing: 1px;
    width: 56px;
    text-transform: uppercase;
    flex-shrink: 0;
  }

  .meter-track {
    flex: 1;
    height: 3px;
    background: var(--border);
    position: relative;
    overflow: hidden;
  }

  .meter-fill {
    height: 100%;
    transition: width 1s ease;
    position: relative;
  }

  .meter-fill.red { background: var(--red); box-shadow: 0 0 6px var(--red); }
  .meter-fill.orange { background: var(--orange); box-shadow: 0 0 6px var(--orange); }
  .meter-fill.yellow { background: var(--yellow); box-shadow: 0 0 6px var(--yellow); }

  .meter-val {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text2);
    width: 30px;
    text-align: right;
    flex-shrink: 0;
  }

  /* EMPTY STATE */
  .empty-state {
    display: none;
    text-align: center;
    padding: 80px 40px;
    grid-column: 1 / -1;
    color: var(--text3);
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 2px;
  }

  .empty-state.visible { display: block; }

  /* FOOTER */
  footer {
    position: relative;
    z-index: 5;
    padding: 40px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: gap;
  }

  .footer-logo {
    font-family: var(--display);
    font-size: 14px;
    font-weight: 700;
    color: var(--text3);
    letter-spacing: 4px;
  }

  .footer-note {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text3);
    letter-spacing: 1px;
  }

  /* MOBILE */
  @media (max-width: 768px) {
    .attack-grid { margin: 20px 16px 60px; }
    .controls { padding: 24px 16px 12px; }
    header { padding: 0 16px; }
    .hero { padding: 50px 16px 40px; }
    .stats-bar { gap: 30px; padding: 20px; }
    .card-detail { grid-template-columns: 1fr; }
  }

  /* HIDDEN */
  .attack-card.hidden {
    display: none;
  }

  /* TERMINAL CURSOR */
  .cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: var(--cyan);
    vertical-align: middle;
    animation: blink 1s step-end infinite;
    margin-left: 4px;
  }

  @keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
  }