/* OpticTrace site styles — shared by index.html and integrate.html.
 * Extracted from index.html so the two pages cannot drift into two
 * slightly different design systems. Page-specific rules stay inline on
 * the page that owns them. */
  /* ===================================================================
     A committed dark canvas — not a default. Every product screenshot on
     this page is a dark UI, so a light ground would fight the content it
     exists to show. Colours are painted explicitly throughout so the page
     holds regardless of the host's theme.

     The recurring motif is REDACTION: an amber block standing in for a
     value that was masked. It is what the product does, so it is what the
     page is built out of.
     =================================================================== */
  :root {
    --void:      #070B11;
    --surface:   #0E141D;
    --surface-2: #151E2A;
    --surface-3: #1B2635;
    --line:      #1E2A38;
    --line-soft: #141D28;

    --ink:    #E6EDF5;
    --ink-2:  #93A3B5;
    --ink-3:  #61728A;

    --accent:      #46C4E6;  /* optical cyan */
    --accent-deep: #1B6E86;
    --redact:      #E8A33D;  /* the masking motif */
    --good:        #48C98D;
    --bad:         #E8736A;

    --font-display: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
                    "Helvetica Neue", Arial, sans-serif;
    --font-body: var(--font-display);
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
                 "DejaVu Sans Mono", "Liberation Mono", monospace;

    --measure: 66ch;
    --gutter: clamp(1.15rem, 5vw, 4rem);
    --maxw: 78rem;
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
  }

  body {
    margin: 0;
    background: var(--void);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  .wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
  .prose { max-width: var(--measure); }

  h1, h2, h3 { margin: 0; text-wrap: balance; font-weight: 650; letter-spacing: -0.035em; }
  h2 { font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.12; }
  h3 { font-size: clamp(1.05rem, 2vw, 1.25rem); letter-spacing: -0.02em; }
  p { margin: 0 0 1.15rem; color: var(--ink-2); }
  p strong { color: var(--ink); font-weight: 600; }
  a { color: var(--accent); text-underline-offset: 3px; }
  a:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px;
  }
  code {
    font-family: var(--font-mono); font-size: 0.875em;
    background: var(--surface-2); border: 1px solid var(--line);
    padding: 0.1em 0.36em; border-radius: 4px; color: var(--ink);
  }

  /* --- the redaction motif, used as a divider instead of a hairline --- */
  .redact-rule {
    height: 3px; width: 56px; background: var(--redact);
    border-radius: 1px; margin-bottom: 1.4rem;
  }
  .eyebrow {
    font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.18em;
    text-transform: uppercase; color: var(--ink-3); margin-bottom: 0.7rem;
  }

  section { padding-block: clamp(4rem, 9vw, 7.5rem); }
  .band { background: var(--surface); border-block: 1px solid var(--line); }

  /* ============================ NAV ============================ */
  nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(7, 11, 17, 0.82);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-inner {
    max-width: var(--maxw); margin: 0 auto; padding: 0.85rem var(--gutter);
    display: flex; align-items: center; gap: 1.6rem;
  }
  .brand {
    display: flex; align-items: center; gap: 0.55rem;
    font-weight: 650; letter-spacing: -0.02em; font-size: 1.02rem;
    color: var(--ink); text-decoration: none;
  }
  .lens {
    width: 15px; height: 15px; border-radius: 50%;
    border: 2px solid var(--accent); position: relative; flex: none;
  }
  .lens::after {
    content: ""; position: absolute; inset: 3px;
    border-radius: 50%; background: var(--accent);
  }
  .nav-links { margin-left: auto; display: flex; gap: 1.4rem; align-items: center; }
  .nav-links a {
    color: var(--ink-2); text-decoration: none; font-size: 0.9rem;
  }
  .nav-links a:hover { color: var(--ink); }
  .btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.55rem 1.05rem; border-radius: 7px; font-size: 0.9rem;
    font-weight: 550; text-decoration: none; border: 1px solid transparent;
    transition: background 0.15s ease, border-color 0.15s ease;
  }
  .btn-primary { background: var(--accent); color: #04202B; }
  .btn-primary:hover { background: #6BD3EF; }
  .btn-ghost { border-color: var(--line); color: var(--ink); }
  .btn-ghost:hover { border-color: var(--accent-deep); background: var(--surface-2); }
  @media (max-width: 720px) { .nav-links a:not(.btn) { display: none; } }

  /* ============================ HERO ============================ */
  .hero { padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(2rem, 5vw, 3.5rem); }
  .hero h1 {
    font-size: clamp(2.4rem, 6.6vw, 4.7rem);
    line-height: 1.03; letter-spacing: -0.045em; font-weight: 680;
    margin-bottom: 1.35rem; max-width: 17ch;
  }
  /* The aesthetic bet: a word in the headline is literally redacted, then
     wipes away to reveal itself — the page performs what the product does. */
  .masked {
    position: relative; display: inline-block; color: var(--ink);
    isolation: isolate;
  }
  .masked::after {
    content: ""; position: absolute; inset: 0.06em -0.16em 0.1em -0.16em;
    background: var(--redact); border-radius: 3px; z-index: 2;
    transform-origin: right center;
    animation: unmask 1s cubic-bezier(0.65, 0, 0.35, 1) 1.5s forwards;
  }
  @keyframes unmask { to { transform: scaleX(0); } }
  @media (prefers-reduced-motion: reduce) {
    .masked::after { animation: none; transform: scaleX(0); }
  }
  .lede {
    font-size: clamp(1.03rem, 1.75vw, 1.2rem); color: var(--ink-2);
    max-width: 56ch; margin-bottom: 2rem; line-height: 1.6;
  }
  .hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: center; }
  .install {
    font-family: var(--font-mono); font-size: 0.88rem;
    background: var(--surface); border: 1px solid var(--line);
    padding: 0.55rem 0.95rem; border-radius: 7px; color: var(--ink-2);
    white-space: nowrap; overflow-x: auto; max-width: 100%;
  }
  .install b { color: var(--accent); font-weight: 400; }

  .hero-figure { margin-top: clamp(2.5rem, 6vw, 4rem); }
  .shot {
    width: 100%; height: auto; display: block; border-radius: 10px;
    border: 1px solid var(--line);
    box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(70, 196, 230, 0.06);
  }
  figcaption {
    margin-top: 0.85rem; font-size: 0.83rem; color: var(--ink-3);
    max-width: 62ch;
  }

  .stats {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1px; background: var(--line); border: 1px solid var(--line);
    border-radius: 10px; overflow: hidden; margin-top: 2.6rem;
  }
  .stat { background: var(--surface); padding: 1.1rem 1.2rem; }
  .stat b {
    display: block; font-size: 1.5rem; font-weight: 650;
    letter-spacing: -0.03em; color: var(--ink);
    font-variant-numeric: tabular-nums;
  }
  .stat span { font-size: 0.78rem; color: var(--ink-3); }

  /* ======================= THE TRADE-OFF ======================= */
  .versus {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem; margin-top: 2.2rem;
  }
  .card {
    background: var(--surface); border: 1px solid var(--line);
    border-radius: 10px; padding: 1.4rem;
  }
  .card.bad-path { border-color: rgba(232, 115, 106, 0.28); }
  .card.good-path { border-color: rgba(70, 196, 230, 0.32); }
  .card h3 { margin-bottom: 0.5rem; }
  .card p { margin: 0; font-size: 0.93rem; }
  .tag {
    font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.13em;
    text-transform: uppercase; margin-bottom: 0.6rem; display: block;
  }
  .tag.no { color: var(--bad); }
  .tag.yes { color: var(--accent); }

  /* ======================= FLOW DIAGRAM ======================= */

  .flow { overflow-x: auto; padding-block: 0.5rem; }
  .flow-inner { min-width: 720px; }
  .lane-label {
    font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.13em;
    text-transform: uppercase; display: flex; align-items: center; gap: 0.5rem;
    margin-bottom: 0.75rem;
  }
  .dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
  .lane-traffic { color: var(--accent); }
  .lane-traffic .dot { background: var(--accent); }
  .lane-tel { color: var(--redact); }
  .lane-tel .dot { background: var(--redact); }

  .flow-row { display: flex; align-items: stretch; gap: 0; margin-bottom: 0.5rem; }
  .node {
    flex: 1; background: var(--surface-2); border: 1px solid var(--line);
    border-radius: 8px; padding: 0.75rem 0.9rem; min-width: 0;
  }
  .node .nt {
    font-family: var(--font-mono); font-size: 0.82rem; font-weight: 600;
    color: var(--ink); display: block;
  }
  .node .ns { font-size: 0.75rem; color: var(--ink-3); line-height: 1.4; }
  .node.core { background: rgba(70, 196, 230, 0.09); border-color: var(--accent-deep); }
  .node.end { flex: 0 0 8.5rem; background: var(--surface-3); }
  .arrow {
    flex: 0 0 2.2rem; display: grid; place-items: center;
    color: var(--ink-3); font-family: var(--font-mono);
  }
  .tee {
    display: flex; align-items: center; gap: 0.6rem; margin: 0.7rem 0;
    padding-left: calc(8.5rem + 2.2rem);
    font-family: var(--font-mono); font-size: 0.73rem; color: var(--redact);
  }
  .drop {
    width: 2px; height: 24px; flex: none;
    background: repeating-linear-gradient(to bottom, var(--redact) 0 4px, transparent 4px 9px);
  }
  .stages { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.5rem; }
  .stage {
    background: var(--surface-2); border: 1px solid var(--line);
    border-left: 3px solid var(--redact); border-radius: 6px; padding: 0.65rem 0.75rem;
  }
  .stage i {
    font-family: var(--font-mono); font-style: normal; font-size: 0.66rem;
    color: var(--redact); letter-spacing: 0.07em; display: block;
  }
  .stage b { display: block; font-size: 0.82rem; margin: 0.1rem 0; }
  .stage span { font-size: 0.73rem; color: var(--ink-3); line-height: 1.4; }

  /* ======================= CODE BLOCKS ======================= */
  pre {
    font-family: var(--font-mono); font-size: 0.83rem; line-height: 1.65;
    background: var(--surface); border: 1px solid var(--line);
    border-radius: 10px; padding: 1.15rem 1.3rem; overflow-x: auto;
    margin: 0; color: var(--ink); tab-size: 2;
  }
  pre .c { color: var(--ink-3); font-style: italic; }
  pre .k { color: var(--accent); }
  pre .s { color: var(--good); }
  pre .r { color: var(--redact); font-weight: 600; }
  .code-label {
    font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-3);
    margin-bottom: 0.5rem; letter-spacing: 0.05em;
  }
  .split {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 1.4rem; align-items: start; margin-top: 2rem;
  }

  /* ======================= FEATURES ======================= */
  .features {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
    gap: 1px; background: var(--line); border: 1px solid var(--line);
    border-radius: 12px; overflow: hidden; margin-top: 2.4rem;
  }
  .feature { background: var(--surface); padding: 1.5rem 1.4rem; }
  .feature .cmd {
    font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent);
    display: block; margin-bottom: 0.55rem;
  }
  .feature h3 { font-size: 1rem; margin-bottom: 0.4rem; }
  .feature p { font-size: 0.9rem; margin: 0; }

  /* ======================= BENCHMARK CHART ======================= */
  .chart { margin-top: 2rem; display: grid; gap: 0.85rem; }
  .bar-row { display: grid; grid-template-columns: minmax(0, 15rem) 1fr auto; gap: 1rem; align-items: center; }
  .bar-label { font-size: 0.88rem; color: var(--ink-2); }
  .bar-track {
    height: 26px; background: var(--surface-2); border-radius: 5px;
    border: 1px solid var(--line); overflow: hidden; position: relative;
  }
  .bar-fill {
    height: 100%; border-radius: 4px 0 0 4px;
    transform-origin: left center;
    animation: grow 1.1s cubic-bezier(0.22, 1, 0.36, 1) both;
  }
  @keyframes grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
  @media (prefers-reduced-motion: reduce) { .bar-fill { animation: none; } }
  .bar-val {
    font-family: var(--font-mono); font-size: 0.85rem; color: var(--ink);
    font-variant-numeric: tabular-nums; white-space: nowrap;
  }
  @media (max-width: 640px) {
    .bar-row { grid-template-columns: 1fr auto; }
    .bar-label { grid-column: 1 / -1; }
  }

  /* ======================= PR COMMENT ======================= */
  .pr {
    background: var(--surface); border: 1px solid var(--line);
    border-radius: 10px; overflow: hidden; margin-top: 2rem;
  }
  .pr-head {
    display: flex; align-items: center; gap: 0.6rem; padding: 0.75rem 1.1rem;
    border-bottom: 1px solid var(--line); background: var(--surface-2);
    font-size: 0.85rem; color: var(--ink-2);
  }
  .avatar {
    width: 22px; height: 22px; border-radius: 50%; flex: none;
    background: var(--accent-deep); display: grid; place-items: center;
  }
  .avatar .lens { width: 11px; height: 11px; border-width: 1.5px; }
  .pr-body { padding: 1.15rem; }
  .pr-verdict {
    border-left: 3px solid var(--bad); padding-left: 0.9rem; margin-bottom: 1.1rem;
  }
  .pr-verdict b { color: var(--bad); font-size: 1.02rem; }
  .pr-verdict p { margin: 0.3rem 0 0; font-size: 0.88rem; }
  table.pr-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
  table.pr-table th {
    text-align: left; font-family: var(--font-mono); font-size: 0.68rem;
    letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3);
    padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--line); font-weight: 600;
  }
  table.pr-table td {
    padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line-soft);
    color: var(--ink-2); vertical-align: top;
  }
  table.pr-table td.n { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink); }
  table.pr-table code { background: none; border: none; padding: 0; color: var(--accent); }
  .sev { font-weight: 700; }
  .sev.x { color: var(--bad); }
  .sev.w { color: var(--redact); }
  .tbl-scroll { overflow-x: auto; }

  /* ======================= SCREENSHOT BAND ======================= */
  .shots { display: grid; gap: 2.6rem; margin-top: 2.6rem; }
  .shot-item figcaption { margin-top: 0.75rem; }
  .shot-item h3 { margin-bottom: 0.3rem; }

  /* ======================= FOOTER / CTA ======================= */
  .cta { text-align: left; }
  .cta h2 { max-width: 18ch; }
  footer {
    border-top: 1px solid var(--line); padding-block: 2.5rem 3.5rem;
    color: var(--ink-3); font-size: 0.85rem;
  }
  .foot-grid {
    display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; align-items: center;
    justify-content: space-between;
  }
  .foot-links { display: flex; flex-wrap: wrap; gap: 1.3rem; }
  .foot-links a { color: var(--ink-2); text-decoration: none; }
  .foot-links a:hover { color: var(--accent); }

  ul.ticks { list-style: none; padding: 0; margin: 1.2rem 0 0; }
  ul.ticks li {
    position: relative; padding-left: 1.5rem; margin-bottom: 0.6rem;
    color: var(--ink-2); font-size: 0.93rem;
  }
  ul.ticks li::before {
    content: "▸"; position: absolute; left: 0; color: var(--accent);
  }