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

  :root {
    --bg:        #0a0202;
    --bg2:       #120505;
    --bg3:       #080101;
    --bg4:       #160606;
    --border:    #5f1e1e;
    --border2:   #2a0f0f;
    --cyan:      #ff2233;
    --green:     #ff4455;
    --red:       #ff0011;
    --amber:     #ff6677;
    --violet:    #ff8899;
    --text:      #f0e2e2;
    --muted:     #c4a3a3;
    --dim:       #a55a5a;
    --ghost:     #552e2e;
    --darker:    #5f1e1e;
  }

  html, body { height: 100%; }

  body {
    background: var(--bg);
    font-family: 'IBM Plex Mono', monospace;
    color: var(--text);
    min-height: 100vh;
    background-image:
      linear-gradient(rgba(95,30,30,0.15) 1px, transparent 1px),
      linear-gradient(90deg, rgba(95,30,30,0.15) 1px, transparent 1px);
    background-size: 40px 40px;
    padding: 30px 20px 50px;
  }

  ::-webkit-scrollbar { width: 4px; }
  ::-webkit-scrollbar-track { background: #0d0000; }
  ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

  /* ── layout ── */
  .wrapper { max-width: 920px; margin: 0 auto; }

  .header { margin-bottom: 28px; }
  .header-row { display: flex; align-items: baseline; gap: 16px; margin-bottom: 4px; }
  .logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 48px;
    color: #ff2233;
    letter-spacing: 4px;
    line-height: 1;
    text-shadow: 0 0 20px rgba(255,34,51,.5);
  }
  .version { font-size: 10px; color: var(--border); letter-spacing: 3px; }
  .tagline { font-size: 11px; color: var(--ghost); letter-spacing: 2px; }

  .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

  .col { display: flex; flex-direction: column; gap: 14px; }

  /* ── card ── */
  .card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 16px;
  }

  /* ── label ── */
  label, .lbl {
    display: block;
    font-size: 10px;
    letter-spacing: 1.5px;
    color: var(--dim);
    margin-bottom: 6px;
    font-weight: 500;
    text-transform: uppercase;
  }

  /* ── inputs ── */
  input[type="text"],
  input[type="number"] {
    width: 100%;
    background: var(--bg4);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 14px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    outline: none;
    border-radius: 2px;
    transition: border-color .2s, box-shadow .2s;
    -moz-appearance: textfield;
  }
  input[type="number"]::-webkit-outer-spin-button,
  input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
  input:focus {
    border-color: #ff2233;
    box-shadow: 0 0 0 1px rgba(255,34,51,.2);
  }
  input::placeholder { color: var(--ghost); }

  /* ── search wrapper ── */
  .search-wrap { position: relative; }
  .search-spinner {
    position: absolute; right: 12px; top: 50%;
    transform: translateY(-50%);
    font-size: 10px; color: #ff2233;
    display: none;
    animation: pulse 1.5s infinite;
  }
  .search-spinner.active { display: block; }

  /* ── dropdown ── */
  .dropdown {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-top: none;
    z-index: 200;
    max-height: 220px;
    overflow-y: auto;
    display: none;
  }
  .dropdown.open { display: block; animation: fadeIn .2s ease; }
  .dropdown-item {
    padding: 8px 14px;
    cursor: pointer;
    border-bottom: 1px solid var(--border2);
    transition: background .1s;
    display: flex;
    gap: 10px;
    align-items: baseline;
  }
  .dropdown-item:hover { background: #200a0a; }
  .dropdown-item:last-child { border-bottom: none; }
  .d-sym { color: #ff2233; font-size: 12px; font-weight: 600; }
  .d-desc { color: var(--ghost); font-size: 11px; }

  /* ── quick chips ── */
  .chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
  .chip {
    background: #160505;
    border: 1px solid var(--border);
    padding: 6px 12px;
    cursor: pointer;
    font-size: 12px;
    letter-spacing: 1px;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--muted);
    transition: all .15s;
    border-radius: 2px;
  }
  .chip:hover, .chip.active {
    background: #2a0808;
    border-color: #ff2233;
    color: #ff2233;
  }

  /* ── spec bar ── */
  .spec-bar {
    margin-top: 12px;
    padding: 10px;
    background: var(--bg3);
    border: 1px solid var(--border2);
    border-radius: 2px;
  }
  .spec-name { color: #ff2233; font-size: 11px; font-weight: 600; margin-bottom: 6px; letter-spacing: 1px; }
  .spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; font-size: 11px; color: var(--dim); }
  .spec-val { color: var(--muted); }

  /* ── direction buttons ── */
  .dir-row { display: flex; gap: 8px; }
  .dir-btn {
    flex: 1;
    padding: 9px 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    cursor: pointer;
    border: 1px solid var(--border);
    background: transparent;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--ghost);
    transition: all .15s;
    border-radius: 2px;
  }
  .dir-btn.long-active {
    border-color: #ffffff;
    color: #ffffff;
    background: rgba(255,255,255,.05);
  }
  .dir-btn.short-active {
    border-color: #ff0011;
    color: #ff0011;
    background: rgba(255,0,17,.05);
  }

  /* ── price grid ── */
  .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .field { display: flex; flex-direction: column; }

  /* ── results ── */
  .pnl-card {
    padding: 16px;
    border-radius: 2px;
    border: 1px solid var(--border);
    background: var(--bg2);
  }
  .pnl-card.profit { border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.02); }
  .pnl-card.loss   { border-color: rgba(255,0,17,.3);   background: rgba(255,0,17,.02); }

  .pnl-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 46px;
    letter-spacing: 2px;
    line-height: 1;
  }
  .pnl-value.profit { color: #ffffff; text-shadow: 0 0 30px rgba(255,255,255,.4); }
  .pnl-value.loss   { color: #ff0011; text-shadow: 0 0 30px rgba(255,0,17,.4); }

  .pnl-sub { margin-top: 4px; font-size: 12px; color: var(--dim); }

  /* ── metric rows ── */
  .metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border2);
  }
  .metric-row:last-child { border-bottom: none; }
  .metric-label { font-size: 11px; color: var(--dim); }
  .metric-val   { font-size: 12px; color: var(--text); }

  /* ── badge ── */
  .badge {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 2px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-left: 8px;
  }
  .badge.good { background: rgba(255,255,255,.1); color: #ffffff;  border: 1px solid rgba(255,255,255,.3); }
  .badge.ok   { background: rgba(255,100,100,.1); color: #ff8899;  border: 1px solid rgba(255,136,153,.3); }
  .badge.poor { background: rgba(255,0,17,.1);    color: #ff0011;  border: 1px solid rgba(255,0,17,.3); }

  /* ── sizing card ── */
  .sizing-card {
    padding: 16px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 2px;
  }
  .sizing-big {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 38px;
    color: #ff2233;
    letter-spacing: 2px;
  }
  .sizing-sub { font-size: 11px; color: var(--ghost); line-height: 1.6; }

  /* ── breakeven ── */
  .be-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .be-item {
    background: var(--bg3);
    border: 1px solid var(--border2);
    padding: 8px 10px;
    text-align: center;
    border-radius: 2px;
  }
  .be-lots   { font-size: 10px; color: var(--ghost); letter-spacing: 1px; }
  .be-ticks  { font-size: 14px; color: var(--muted); margin-top: 2px; }
  .be-fees   { font-size: 10px; color: var(--dim); }

  /* ── placeholder panel ── */
  .placeholder {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 60px 40px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 2px;
    text-align: center;
  }
  .ph-word {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 64px;
    opacity: .06;
    letter-spacing: 4px;
    color: #ff2233;
  }
  .ph-hint { font-size: 11px; color: var(--border); letter-spacing: 2px; }

  /* ── disclaimer ── */
  .disclaimer {
    padding: 10px 14px;
    background: var(--bg3);
    border: 1px solid var(--border2);
    font-size: 10px;
    color: var(--border);
    line-height: 1.6;
    letter-spacing: .5px;
    border-radius: 2px;
  }

  /* ── animations ── */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: .4; }
  }
  .fade-in { animation: fadeIn .25s ease; }

  /* ── responsive ── */
  @media (max-width: 680px) {
    .grid { grid-template-columns: 1fr; }
    .logo { font-size: 36px; }
  }