:root {
    --bg: #191127;
    --surface: #23133a;
    --border: #3a1c63;
    --green: #883CF0;
    --green-dim: #7c3aed34;
    --red: #b29dce;
    --amber: #af62c8;
    --blue: #9f6aea;
    --text: #c8d8e8;
    --muted: #d6d6d6;
    --grid: rgba(140, 0, 200, 0.073);
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-weight: 300;
    overflow-x: hidden;
    cursor: crosshair;
  }

  /* Scanline overlay */
  body::before {
    content: '';
    position: fixed; inset: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.03) 2px,
      rgba(0,0,0,0.03) 4px
    );
    pointer-events: none;
    z-index: 9999;
  }

  /* Grid background */
  body::after {
    content: '';
    position: fixed; inset: 0;
    background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
  }

  /* ── HEADER ── */
  header {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 40px;
    background: #180f26;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }

  .logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 4px;
    color: var(--green);
    text-shadow: 0 0 20px rgba(124, 0, 232, 0.5);
  }

  .logo span { color: var(--text); opacity: .5; }

  nav { display: flex; gap: 32px; }
  nav a {
    font-family: 'Share Tech Mono', monospace;
    font-size: .72rem;
    letter-spacing: 2px;
    color: var(--muted);
    text-decoration: none;
    text-transform: uppercase;
    transition: color .2s;
  }
  nav a:hover { color: var(--green); }

  .status-pill {
    display: flex; align-items: center; gap: 8px;
    font-family: 'Share Tech Mono', monospace;
    font-size: .68rem; color: var(--green);
    letter-spacing: 1.5px;
  }
  .pulse {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0%,100% { opacity: 1; transform: scale(1); }
    50% { opacity: .4; transform: scale(.8); }
  }

  /* ── HERO ── */
  .hero {
    position: relative; z-index: 1;
    min-height: 100vh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center;
    padding: 120px 40px 80px;
    overflow: hidden;
  }

  .hero-glow {
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(116, 0, 232, 0.07) 0%, transparent 70%);
    pointer-events: none;
  }

  .hero-eyebrow {
    font-family: 'Share Tech Mono', monospace;
    font-size: .7rem; letter-spacing: 5px;
    color: var(--green); text-transform: uppercase;
    margin-bottom: 24px;
    animation: fadeUp .8s ease both;
  }

  h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(4rem, 10vw, 9rem);
    line-height: .95;
    letter-spacing: 6px;
    color: #fff;
    text-shadow: 0 0 80px rgba(97, 0, 232, 0.2);
    animation: fadeUp .8s ease .1s both;
  }

  h1 em {
    font-style: normal;
    color: transparent;
    -webkit-text-stroke: 1px var(--green);
    text-shadow: none;
  }

  .hero-sub {
    margin-top: 28px;
    max-width: 560px;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--muted);
    animation: fadeUp .8s ease .2s both;
  }

  .hero-ctas {
    margin-top: 48px;
    display: flex; gap: 16px;
    animation: fadeUp .8s ease .3s both;
  }

  .btn-primary {
    padding: 14px 36px;
    background: var(--green);
    color: #04060d;
    font-family: 'Share Tech Mono', monospace;
    font-size: .78rem; letter-spacing: 2px;
    text-transform: uppercase;
    border: none; cursor: pointer;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
    transition: transform .15s, box-shadow .2s;
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(112, 0, 232, 0.4);
  }

  .btn-ghost {
    padding: 14px 36px;
    background: transparent;
    color: var(--green);
    font-family: 'Share Tech Mono', monospace;
    font-size: .78rem; letter-spacing: 2px;
    text-transform: uppercase;
    border: 1px solid #3a1c63; cursor: pointer;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
    transition: background .2s, border-color .2s;
  }
  .btn-ghost:hover { background: var(--green-dim); color:#04060d; border-color: var(--green); }

  /* ── STATS BAR ── */
  .stats-bar {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: repeat(4,1fr);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: #23133a;
  }

  .stat-cell {
    padding: 36px 40px;
    border-right: 1px solid var(--border);
    text-align: center;
    transition: background .2s;
  }
  .stat-cell:last-child { border-right: none; }
  .stat-cell:hover { background: var(--green-dim); }

  .stat-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem; letter-spacing: 3px;
    color: var(--green);
    counter-reset: num var(--n);
    text-shadow: 0 0 20px rgba(135, 0, 232, 0.3);
  }

  .stat-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: .62rem; letter-spacing: 2.5px;
    color: var(--muted); text-transform: uppercase;
    margin-top: 4px;
  }

  /* ── SECTION SHARED ── */
  section {
    position: relative; z-index: 1;
    padding: 100px 40px;
    max-width: 1200px; margin: 0 auto;
  }

  .section-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: .65rem; letter-spacing: 4px;
    color: var(--green); text-transform: uppercase;
    margin-bottom: 12px;
    display: flex; align-items: center; gap: 12px;
  }
  .section-label::before {
    content: '';
    display: inline-block;
    width: 24px; height: 1px;
    background: var(--green);
  }

  .section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: 3px; color: #fff;
    line-height: 1;
    margin-bottom: 20px;
  }

  .section-body {
    font-size: .95rem; line-height: 1.8;
    color: var(--muted); max-width: 580px;
  }

  /* ── LIVE FEED ── */
  .feed-wrap {
    display: grid; grid-template-columns: 1.2fr 1fr;
    gap: 32px; margin-top: 60px; align-items: start;
  }

  .feed-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
    overflow: hidden;
  }

  .panel-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    background: #2a1647;
  }

  .panel-title {
    font-family: 'Share Tech Mono', monospace;
    font-size: .68rem; letter-spacing: 2px;
    color: var(--green); text-transform: uppercase;
  }

  .panel-badge {
    font-family: 'Share Tech Mono', monospace;
    font-size: .6rem; letter-spacing: 1px;
    padding: 3px 10px;
    border: 1px solid;
  }
  .badge-red { color: var(--red); border-color: rgba(255,59,92,.3); background: rgba(255,59,92,.08); }
  .badge-green { color: var(--green); border-color: rgba(0,232,160,.3); background: rgba(0,232,160,.08); }
  .badge-amber { color: var(--amber); border-color: rgba(255,179,64,.3); background: rgba(255,179,64,.08); }

  .event-list { padding: 12px; max-height: 420px; overflow-y: auto; }
  .event-list::-webkit-scrollbar { width: 3px; }
  .event-list::-webkit-scrollbar-thumb { background: var(--border); }

  .event-item {
    display: grid;
    grid-template-columns: 60px 100px 1fr 70px;
    gap: 12px; align-items: center;
    padding: 10px 12px;
    border-bottom: 1px solid #3a1c63;
    font-family: 'Share Tech Mono', monospace;
    font-size: .65rem; letter-spacing: .5px;
    transition: background .15s;
    animation: slideIn .4s ease both;
  }
  .event-item:hover { background: #1f1232; }

  .event-time { color: var(--muted); }
  .event-user { color: var(--blue); }
  .event-desc { color: var(--text); }
  .event-score {
    text-align: right; font-weight: bold;
    padding: 2px 6px; border-radius: 2px;
  }
  .score-high { color: var(--red); background: rgba(255,59,92,.12); }
  .score-med { color: var(--amber); background: rgba(255,179,64,.12); }
  .score-low { color: var(--green); background: rgba(0,232,160,.12); }

  /* Risk meter panel */
  .risk-meter-panel { display: flex; flex-direction: column; gap: 16px; padding: 20px; }

  .risk-row {
    display: flex; flex-direction: column; gap: 6px;
  }
  .risk-info {
    display: flex; justify-content: space-between; align-items: center;
  }
  .risk-name {
    font-family: 'Share Tech Mono', monospace;
    font-size: .68rem; letter-spacing: 1px; color: var(--text);
  }
  .risk-val {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem; letter-spacing: 2px;
  }

  .bar-track {
    height: 6px; background: rgba(255,255,255,0.05);
    position: relative; overflow: hidden;
  }
  .bar-fill {
    height: 100%; width: 0;
    transition: width 1.5s cubic-bezier(.22,.61,.36,1);
    position: relative;
  }
  .bar-fill::after {
    content: '';
    position: absolute; right: 0; top: -2px;
    width: 2px; height: 10px;
    background: inherit; filter: brightness(2);
  }
  .bar-red { background: linear-gradient(90deg, rgba(255,59,92,.3), var(--red)); }
  .bar-amber { background: linear-gradient(90deg, rgba(255,179,64,.3), var(--amber)); }
  .bar-green { background: linear-gradient(90deg, rgba(0,232,160,.3), var(--green)); }
  .bar-blue { background: linear-gradient(90deg, rgba(42,175,255,.3), var(--blue)); }

  /* ── HOW IT WORKS ── */
  .steps-grid {
    display: grid; grid-template-columns: repeat(3,1fr);
    gap: 1px; background: var(--border);
    border: 1px solid var(--border);
    margin-top: 60px;
  }

  .step-card {
    background: var(--surface);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: background .2s;
    cursor: default;
  }
  .step-card:hover { background: #1f1232; }
  .step-card:hover .step-num { opacity: .3; }

  .step-num {
    position: absolute; right: 24px; top: 20px;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 5rem; color: rgba(255, 255, 255, 0.107);
    line-height: 1; letter-spacing: 2px;
    transition: opacity .2s;
    user-select: none;
  }

  .step-icon {
    width: 44px; height: 44px;
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; margin-bottom: 20px;
    background: #291a3e;
  }

  .step-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.4rem; letter-spacing: 2px; color: #fff;
    margin-bottom: 12px;
  }

  .step-text {
    font-size: .85rem; line-height: 1.7; color: var(--muted);
  }

  .step-card::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 3px; height: 0;
    background: var(--green);
    transition: height .3s ease;
  }
  .step-card:hover::before { height: 100%; }

  /* ── THREAT MAP ── */
  .threat-section {
    max-width: 100%;
    padding: 80px 40px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .threat-inner {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1.6fr;
    gap: 60px; align-items: center;
  }

  .threat-canvas-wrap {
    position: relative;
    border: 1px solid var(--border);
    background: var(--bg);
    overflow: hidden;
  }
  .threat-canvas-wrap canvas { display: block; width: 100%; }

  /* ── ALERT CATEGORIES ── */
  .cats-grid {
    display: grid; grid-template-columns: repeat(2,1fr);
    gap: 16px; margin-top: 60px;
  }

  .cat-card {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 28px;
    position: relative; overflow: hidden;
    cursor: pointer;
    transition: border-color .2s, transform .15s;
  }
  .cat-card:hover {
    border-color: #5e309d;
    transform: translateY(-3px);
  }

  .cat-card.active {
    border-color: var(--green);
    background: var(--green-dim);
  }

  .cat-icon {
    font-size: 1.6rem; margin-bottom: 14px;
  }

  .cat-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.2rem; letter-spacing: 2px; color: #fff;
    margin-bottom: 8px;
  }

  .cat-desc {
    font-size: .82rem; line-height: 1.65; color: var(--muted);
  }

  .cat-tag {
    display: inline-block; margin-top: 12px;
    font-family: 'Share Tech Mono', monospace;
    font-size: .6rem; letter-spacing: 1.5px;
    color: var(--green); border: 1px solid #3a1c63;
    padding: 3px 8px;
  }

  .cat-items {
    display: none; margin-top: 16px;
    padding-top: 16px; border-top: 1px solid var(--border);
  }
  .cat-card.active .cat-items { display: block; }
  .cat-items li {
    font-family: 'Share Tech Mono', monospace;
    font-size: .65rem; letter-spacing: .5px;
    color: var(--muted); line-height: 2;
    list-style: none;
    padding-left: 14px; position: relative;
  }
  .cat-items li::before {
    content: '›'; position: absolute; left: 0;
    color: var(--green);
  }

  /* ── RISK SCORE CALCULATOR ── */
  .calc-section {
    max-width: 1200px; margin: 0 auto;
    padding: 100px 40px;
  }

  .calc-layout {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 40px; margin-top: 60px;
  }

  .calc-controls {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 32px;
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  }

  .control-group { margin-bottom: 28px; }
  .control-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: .65rem; letter-spacing: 2px; color: var(--muted);
    text-transform: uppercase; margin-bottom: 10px;
    display: flex; justify-content: space-between;
  }
  .control-val { color: var(--green); }

  input[type=range] {
    width: 100%; appearance: none;
    height: 3px; background: rgba(255,255,255,0.08);
    outline: none; cursor: pointer;
  }
  input[type=range]::-webkit-slider-thumb {
    appearance: none;
    width: 14px; height: 14px;
    background: var(--green);
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0,232,160,0.5);
  }

  .calc-output {
    display: flex; flex-direction: column; align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 40px;
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
    text-align: center;
  }

  .score-ring {
    position: relative; width: 180px; height: 180px;
    margin-bottom: 24px;
  }
  .score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
  .score-ring .ring-bg { fill: none; stroke: rgba(255,255,255,0.05); stroke-width: 8; }
  .score-ring .ring-fill {
    fill: none; stroke-width: 8;
    stroke-linecap: square;
    stroke-dasharray: 440; stroke-dashoffset: 440;
    transition: stroke-dashoffset 1s cubic-bezier(.22,.61,.36,1), stroke .3s;
  }

  .score-num-wrap {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
  }
  .score-big {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3.5rem; letter-spacing: 3px; line-height: 1;
  }
  .score-label-sm {
    font-family: 'Share Tech Mono', monospace;
    font-size: .58rem; letter-spacing: 2px; color: var(--muted);
  }

  .risk-verdict {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem; letter-spacing: 4px;
    margin-bottom: 8px;
  }
  .risk-advice {
    font-size: .82rem; color: var(--muted); line-height: 1.6;
    max-width: 260px;
  }

  /* ── CTA BANNER ── */
  .cta-banner {
    position: relative; z-index: 1;
    background: linear-gradient(135deg, #23133a97 0%, transparent 60%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 80px 40px;
    text-align: center;
    overflow: hidden;
  }

  .cta-banner::before {
    content: 'PBA';
    position: absolute;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 25vw; letter-spacing: 10px;
    color: rgba(128, 0, 232, 0.02);
    top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    pointer-events: none; user-select: none;
    white-space: nowrap;
  }

  .cta-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: 5px; color: #fff;
    margin-bottom: 20px;
  }
  .cta-sub { color: var(--muted); font-size: .95rem; line-height: 1.7; margin-bottom: 40px; }

  /* ── FOOTER ── */
  footer {
    position: relative; z-index: 1;
    border-top: 1px solid var(--border);
    padding: 32px 40px;
    display: flex; justify-content: space-between; align-items: center;
    font-family: 'Share Tech Mono', monospace;
    font-size: .62rem; letter-spacing: 1.5px; color: var(--muted);
  }

  /* Utility */
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes slideIn {
    from { opacity: 0; transform: translateX(-8px); }
    to { opacity: 1; transform: translateX(0); }
  }

  .divider {
    width: 100%; height: 1px;
    background: var(--border);
    position: relative; z-index: 1;
  }

  /* Tooltip */
  [data-tip] { position: relative; }
  [data-tip]:hover::after {
    content: attr(data-tip);
    position: absolute; bottom: 120%; left: 50%;
    transform: translateX(-50%);
    background: #1f1232; border: 1px solid var(--border);
    padding: 6px 12px;
    font-family: 'Share Tech Mono', monospace;
    font-size: .62rem; letter-spacing: 1px; color: var(--green);
    white-space: nowrap; pointer-events: none;
  }

  @media (max-width: 900px) {
    header { padding: 16px 20px; }
    nav { display: none; }
    .stats-bar { grid-template-columns: repeat(2,1fr); }
    section { padding: 70px 20px; }
    .feed-wrap { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .threat-inner { grid-template-columns: 1fr; }
    .cats-grid { grid-template-columns: 1fr; }
    .calc-layout { grid-template-columns: 1fr; }
    footer { flex-direction: column; gap: 12px; text-align: center; }
    h1 { letter-spacing: 3px; }
  }