/* Self-hosted fonts — variable WOFF2, latin + latin-ext subsets */
  @font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('fonts/inter-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('fonts/inter-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
  }
  @font-face {
    font-family: 'Source Serif 4';
    font-style: normal;
    font-weight: 200 900;
    font-display: swap;
    src: url('fonts/source-serif-4-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
  }
  @font-face {
    font-family: 'Source Serif 4';
    font-style: normal;
    font-weight: 200 900;
    font-display: swap;
    src: url('fonts/source-serif-4-latin-ext.woff2') format('woff2');
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
  }

  :root {
    /* Surfaces — warm cream ladder */
    --bg:           oklch(0.95 0.014 70);
    --bg-2:         oklch(0.97 0.018 65);
    --bg-3:         oklch(0.94 0.022 60);
    --bg-card:      oklch(0.995 0.008 70);

    /* Text */
    --fg:           oklch(0.15 0.022 35);
    --fg-soft:      oklch(0.32 0.02 38);
    --muted:        oklch(0.95 0.014 70);
    --muted-fg:     oklch(0.42 0.02 40);
    --accent:       oklch(0.93 0.014 70);    /* hover/active surface, slightly darker than bg */

    /* Brand — burnt sienna */
    --primary:       oklch(0.5 0.16 35);
    --primary-hover: oklch(0.45 0.16 35);
    --primary-active:oklch(0.4 0.16 35);
    --primary-subtle:oklch(0.96 0.04 35);
    --primary-muted: oklch(0.85 0.10 35);
    --primary-fg:    oklch(0.99 0.012 70);
    --primary-deep:  oklch(0.32 0.13 32);     /* near-maroon for editorial weight */

    /* Borders + form input + focus ring */
    --border:        oklch(0.86 0.014 60);
    --border-strong: oklch(0.75 0.018 50);
    --input:         oklch(0.62 0.018 50);    /* form-field border, 3:1 against bg */
    --ring:          oklch(0.5 0.16 35);

    /* Status — success */
    --success:           oklch(0.48 0.16 145);
    --success-fg:        oklch(0.99 0.012 70);
    --success-muted:     oklch(0.92 0.07 145);
    --success-muted-fg:  oklch(0.4 0.16 145);

    /* Status — warning */
    --warning:           oklch(0.62 0.18 70);
    --warning-fg:        oklch(0.15 0.022 35);
    --warning-muted:     oklch(0.92 0.08 70);
    --warning-muted-fg:  oklch(0.45 0.17 70);

    /* Status — info */
    --info:              oklch(0.5 0.16 230);
    --info-fg:           oklch(0.99 0.012 70);
    --info-muted:        oklch(0.93 0.07 230);
    --info-muted-fg:     oklch(0.42 0.16 230);

    /* Type */
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif: "Source Serif 4", Georgia, serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* Layout */
    --nav-height: 76px;        /* sticky nav offset; mirrors STICKY_TOP in site.js */

    /* Brand-adjacent */
    --yc-orange:     #ff6600;  /* Y Combinator brand orange — used only on the YC mark */
  }

  /* DARK theme override */
  html[data-theme="dark"] {
    /* Lightness ladder: bg-2 (recessed) < bg = bg-card (canvas) < bg-3 (popover) */
    --bg:           oklch(0.235 0.02 40);
    --bg-2:         oklch(0.18 0.02 40);
    --bg-3:         oklch(0.265 0.022 40);
    --bg-card:      oklch(0.235 0.02 40);

    --fg:           oklch(0.985 0.014 70);
    --fg-soft:      oklch(0.85 0.014 60);
    --muted:        oklch(0.30 0.02 40);
    --muted-fg:     oklch(0.76 0.014 60);
    --accent:       oklch(0.30 0.02 40);    /* shares value with muted in dark; semantic split preserved */

    --primary:       oklch(0.68 0.15 35);
    --primary-hover: oklch(0.73 0.15 35);
    --primary-active:oklch(0.63 0.15 35);
    --primary-subtle:oklch(0.30 0.07 35);
    --primary-muted: oklch(0.42 0.12 35);
    --primary-fg:    oklch(0.18 0.018 40);
    --primary-deep:  oklch(0.55 0.16 35);

    --border:        oklch(0.34 0.022 40);
    --border-strong: oklch(0.44 0.024 40);
    --input:         oklch(0.55 0.024 40);
    --ring:          oklch(0.68 0.15 35);

    --success:           oklch(0.6 0.16 145);
    --success-fg:        oklch(0.18 0.018 40);
    --success-muted:     oklch(0.30 0.07 145);
    --success-muted-fg:  oklch(0.7 0.15 145);

    --warning:           oklch(0.74 0.16 70);
    --warning-fg:        oklch(0.18 0.018 40);
    --warning-muted:     oklch(0.32 0.09 70);
    --warning-muted-fg:  oklch(0.8 0.16 70);

    --info:              oklch(0.65 0.15 230);
    --info-fg:           oklch(0.18 0.018 40);
    --info-muted:        oklch(0.30 0.08 230);
    --info-muted-fg:     oklch(0.74 0.15 230);
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "ss01", "cv11";
    background-image:
      radial-gradient(color-mix(in oklch, var(--fg) 9%, transparent) 1px, transparent 1.2px);
    background-size: 28px 28px;
    background-attachment: fixed;
    background-position: 0 0;
  }
  /* Soft fade so the dots don't overpower content */
  body::before {
    content: "";
    position: fixed; inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
      radial-gradient(120% 80% at 50% 0%, transparent 0%, color-mix(in oklch, var(--bg) 92%, transparent) 55%, var(--bg) 100%);
  }
  /* Vertical ruler lines framing the content column. Sit at the container's
     outer edge (1240px max-width), giving content 32px of breathing room
     before hitting the rulers. */
  body::after {
    content: "";
    position: fixed;
    top: 0; bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(1240px, calc(100% - 32px));
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
    pointer-events: none;
    z-index: 0;
  }
  body > * { position: relative; z-index: 1; }

  ::selection { background: var(--primary); color: var(--primary-fg); }

  /* Global focus-visible — keyboard-only outline, doesn't fire on mouse click. */
  :focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 2px;
    border-radius: 3px;
  }

  a { color: inherit; text-decoration: none; }

  .serif { font-family: var(--font-serif); font-weight: 500; letter-spacing: -0.01em; }
  .mono { font-family: var(--font-mono); font-feature-settings: normal; }

  .container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 32px;
  }
  .container-narrow {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 32px;
  }

  /* ---------- NAV ---------- */
  .nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid transparent;
    transition:
      background 240ms ease,
      backdrop-filter 240ms ease,
      -webkit-backdrop-filter 240ms ease,
      border-color 240ms ease;
  }
  .nav.scrolled {
    background: color-mix(in oklch, var(--bg) 88%, transparent);
    backdrop-filter: saturate(140%) blur(10px);
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    border-bottom-color: var(--border);
  }
  .nav-inner {
    height: 64px;
    display: flex;
    align-items: center;
    gap: 24px;
  }
  .logo {
    display: flex; align-items: center; gap: 10px;
    font-weight: 600; font-size: 15px; letter-spacing: -0.015em;
    color: var(--fg);
  }
  .logo-image {
    height: 28px;
    width: auto;
    display: block;
    flex-shrink: 0;
    transition: opacity 150ms ease;
  }
  .logo:hover .logo-image { opacity: 0.7; }
  .nav-links {
    display: flex; gap: 4px; align-items: center;
  }
  .nav-links a {
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--muted-fg);
    font-size: 15px;
    font-weight: 500;
    transition: color 120ms ease;
  }
  .nav-links a:hover { color: var(--primary); }
  .nav-links a.active { color: var(--primary); }
  .nav-cta {
    display: flex; align-items: center; gap: 8px;
    margin-left: auto;
  }
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    height: 40px; padding: 0 18px;
    border-radius: 8px;
    font: 500 14px/1 var(--font-sans);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 100ms ease;
    white-space: nowrap;
  }
  .btn:active { transform: translateY(1px); }
  .btn-primary {
    background: var(--primary); color: var(--primary-fg);
    box-shadow: inset 0 -1px 0 rgba(0,0,0,0.2), 0 1px 2px rgba(0,0,0,0.05);
  }
  .btn-primary:hover { background: var(--primary-hover); }
  .btn-ghost {
    background: transparent; color: var(--fg);
    border-color: var(--border-strong);
  }
  .btn-ghost:hover {
    background: color-mix(in oklch, var(--fg) 6%, transparent);
  }
  .btn-lg { height: 48px; padding: 0 22px; font-size: 15px; border-radius: 9px; }

  /* Stripe-style arrow: chevron at rest, shaft grows in on hover.
     Resting state is narrower than a full → glyph, so the button needs
     less right-side padding. */
  .arrow {
    display: inline-flex;
    align-items: center;
    vertical-align: -0.05em;
    transition: transform 240ms cubic-bezier(0.34, 1.56, 0.64, 1);
  }
  .arrow svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    overflow: visible;
  }
  .arrow-shaft {
    stroke-dasharray: 7;
    stroke-dashoffset: 7;
    transition: stroke-dashoffset 300ms cubic-bezier(0.25, 1, 0.5, 1);
  }
  /* Buttons with an arrow get tighter right-side padding — the arrow's
     resting state is narrower than the button's normal symmetric padding
     accounts for, and overcompensating slightly hugs the icon. */
  .btn .arrow {
    margin-right: -4px;
  }
  .btn:hover .arrow,
  a:hover > .arrow,
  a:hover .arrow {
    transform: translateX(2px);
  }
  .btn:hover .arrow-shaft,
  a:hover .arrow-shaft {
    stroke-dashoffset: 0;
  }

  /* ---------- SECTION FRAMES ---------- */
  section { position: relative; }
  .section { padding: 64px 0 128px; }

  .eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font: 600 13px/1 var(--font-sans);
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 18px;
  }
  .eyebrow::before {
    content: "";
    width: 18px; height: 1px; background: currentColor;
  }
  h1, h2, h3, h4 { margin: 0; letter-spacing: -0.022em; }
  h1 { font: 500 64px/1.04 var(--font-serif); letter-spacing: -0.025em; }
  h2 { font: 500 44px/1.08 var(--font-serif); letter-spacing: -0.022em; }
  h3 { font: 600 21px/1.3 var(--font-sans); letter-spacing: -0.012em; }
  h4 { font: 600 16px/1.35 var(--font-sans); letter-spacing: -0.008em; }
  p { margin: 0; }

  .section-head {
    max-width: 760px;
    margin-bottom: 56px;
  }

  /* ---------- HERO ---------- */
  .hero {
    position: relative;
    padding: 148px 0 100px; /* 84 + 64 (nav height) */
    overflow: hidden;
    margin-top: -64px;       /* extend behind sticky nav so the gradient flows under it */
  }
  .hero::before {
    content: "";
    position: absolute; inset: 0;
    background:
      radial-gradient(80% 60% at 100% 0%, color-mix(in oklch, var(--primary) 14%, transparent) 0%, transparent 60%),
      radial-gradient(50% 60% at 0% 30%, color-mix(in oklch, var(--primary) 6%, transparent) 0%, transparent 70%);
    pointer-events: none;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    align-items: center;
    max-width: 920px;
    margin: 0 auto;
  }
  .hero-h1 {
    font-size: clamp(48px, 5.4vw, 76px);
    line-height: 1.02;
    margin-bottom: 24px;
    letter-spacing: -0.028em;
  }
  .hero-h1 .accent {
    color: var(--primary-deep);
    font-style: italic;
    font-weight: 400;
  }
  .hero-sub {
    font-size: 19px;
    line-height: 1.55;
    color: var(--fg-soft);
    max-width: 560px;
    margin-bottom: 36px;
  }
  .hero-ctas { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
  .hero-meta {
    margin-top: 36px;
    display: flex; gap: 24px; align-items: center;
    color: var(--muted-fg);
    font-size: 13px;
  }
  .hero-meta strong { color: var(--fg); font-weight: 600; }
  .hero-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 4px color-mix(in oklch, var(--primary) 18%, transparent);
  }

  /* ---------- INDUSTRIES STRIP ---------- */
  .industries {
    padding: 28px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: color-mix(in oklch, var(--bg) 92%, transparent);
    backdrop-filter: blur(2px);
  }
  .industries-inner {
    display: flex; align-items: center; gap: 40px;
  }
  .industries-label {
    flex-shrink: 0;
    font: 600 11px/1.2 var(--font-sans);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted-fg);
    max-width: 160px;
    position: relative;
    z-index: 2;
    background: color-mix(in oklch, var(--bg) 92%, transparent);
    padding-right: 16px;
    margin-right: -16px;
  }
  .industries-track-wrap {
    position: relative;
    overflow: hidden;
    flex: 1;
    min-width: 0;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 48px, black calc(100% - 48px), transparent 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 48px, black calc(100% - 48px), transparent 100%);
  }
  .industries-track {
    display: flex; gap: 56px; align-items: center;
    animation: scroll-x 60s linear infinite;
    flex-shrink: 0;
    width: max-content;
  }
  @keyframes scroll-x {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }
  .ind-item {
    display: flex; align-items: center; gap: 10px;
    flex-shrink: 0;
    color: var(--fg-soft);
    font: 500 14px/1 var(--font-sans);
    letter-spacing: -0.005em;
    white-space: nowrap;
  }
  .ind-item svg { width: 22px; height: 22px; color: var(--fg); opacity: 0.55; }

  /* ---------- HOW IT WORKS (scroll-driven) ---------- */
  .how {
    position: relative;
  }
  /* Pinned scrollytelling: outer track provides scroll runway; inner stack
     sticks for the duration so both columns ride together as the user scrolls. */
  .how-track {
    position: relative;
    height: 280vh;
  }
  .how-stack {
    position: sticky;
    top: 120px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }
  .how-steps {
    display: flex; flex-direction: column;
    gap: 28px;
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .how-step {
    border-left: 2px solid var(--border);
    padding: 14px 0 24px 24px;
    margin-left: 6px;
    transition: border-color 240ms ease, opacity 240ms ease;
    opacity: 0.55;
    position: relative;
  }
  .how-step::before {
    content: "";
    position: absolute;
    left: -9px; top: 22px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--border);
    transition: background 240ms ease, border-color 240ms ease, transform 240ms ease;
  }
  .how-step.active {
    border-left-color: var(--primary);
    opacity: 1;
  }
  .how-step.active::before {
    background: var(--primary);
    border-color: var(--primary);
    transform: scale(1.15);
    box-shadow: 0 0 0 6px color-mix(in oklch, var(--primary) 18%, transparent);
  }
  .how-step .hs-tag {
    font: 600 11px/1 var(--font-sans);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted-fg);
    margin-bottom: 10px;
  }
  .how-step.active .hs-tag { color: var(--primary); }
  .how-step .hs-h {
    font: 500 28px/1.15 var(--font-serif);
    letter-spacing: -0.02em;
    margin-bottom: 10px;
  }
  .how-step .hs-b {
    font-size: 15px; line-height: 1.55;
    color: var(--fg-soft);
    max-width: 480px;
  }

  .how-canvas-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .how-canvas {
    width: 100%;
    max-width: 540px;
    aspect-ratio: 1 / 1;
    max-height: calc(100vh - 200px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset, 0 6px 24px -10px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
  }
  .how-canvas-grid {
    position: absolute; inset: 24px;
    background-image:
      linear-gradient(to right, var(--border) 1px, transparent 1px),
      linear-gradient(to bottom, var(--border) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.35;
    border-radius: 8px;
    pointer-events: none;
  }
  .how-canvas-title {
    display: flex; justify-content: space-between; align-items: baseline;
    margin-bottom: 16px;
    font-size: 12px;
    color: var(--muted-fg);
    font-weight: 500;
    position: relative;
  }
  .how-canvas-title strong { color: var(--fg); font-weight: 600; }
  .how-canvas-stage {
    position: relative;
    width: 100%;
    height: calc(100% - 36px);
  }
  .how-canvas svg {
    position: absolute; inset: 0; width: 100%; height: 100%;
    pointer-events: none;
  }

  /* Workflow nodes that build out as we scroll */
  .wf-node {
    position: absolute;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 12px;
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
    transform-origin: center;
    transform: scale(0.7);
    opacity: 0;
    transition:
      transform 380ms cubic-bezier(.34,1.56,.64,1),
      opacity 280ms ease,
      border-color 280ms ease,
      background 280ms ease;
    min-width: 100px;
  }
  .wf-node .wf-name {
    font-size: 12.5px; font-weight: 600;
  }
  .wf-node.in {
    transform: scale(1);
    opacity: 1;
  }
  .wf-node.primary {
    background: var(--primary);
    color: var(--primary-fg);
    border-color: var(--primary-active);
  }
  .wf-node.dashed { border-style: dashed; }

  .wf-edge {
    stroke: var(--border-strong);
    stroke-width: 1.4;
    fill: none;
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    transition: stroke-dashoffset 600ms ease, stroke 280ms ease;
  }
  .wf-edge.in {
    stroke-dashoffset: 0;
  }
  .wf-edge.active {
    stroke: var(--primary);
    stroke-width: 1.6;
  }

  /* ---------- PLATFORM ---------- */
  /* Pinned scrollytelling: outer track provides scroll runway; inner stack
     sticks for the duration so both columns ride together as the user scrolls. */
  .plat-track {
    position: relative;
    height: 280vh;
    margin-top: 56px;
  }
  .plat-stack {
    position: sticky;
    top: 120px;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
    align-items: center;
  }
  .plat-sections {
    display: flex; flex-direction: column;
    gap: 28px;
  }
  .plat-section {
    position: relative;
    padding: 14px 0 24px;
    opacity: 0.35;
    transition: opacity 300ms ease;
  }
  /* Crop-mark brackets — top-left + bottom-right corners — appear only on
     the active section, framing it like a "currently selected" target. */
  .plat-section::before,
  .plat-section::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    border: 1.5px solid var(--primary);
    opacity: 0;
    transition: opacity 280ms ease;
    pointer-events: none;
  }
  .plat-section::before {
    top: 0;
    left: -10px;
    border-right: none;
    border-bottom: none;
  }
  .plat-section::after {
    bottom: 0;
    right: -10px;
    border-left: none;
    border-top: none;
  }
  .plat-section.active::before,
  .plat-section.active::after { opacity: 1; }
  .plat-section.active { opacity: 1; }
  .plat-section-head {
    margin-bottom: 10px;
  }
  .plat-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font: 600 11px/1 var(--font-sans);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 6px 10px;
    border: 1px solid var(--border-strong);
    border-radius: 5px;
    color: var(--muted-fg);
    background: var(--bg-card);
    transition: color 240ms ease, border-color 240ms ease, background 240ms ease;
  }
  .plat-section.active .plat-tag {
    color: var(--primary);
    border-color: var(--primary);
    background: color-mix(in oklab, var(--primary) 8%, var(--bg-card));
  }
  .plat-title {
    font: 500 28px/1.15 var(--font-serif);
    letter-spacing: -0.02em;
    color: var(--fg);
    margin-bottom: 10px;
  }
  .plat-body {
    font-size: 15px;
    color: var(--fg-soft);
    line-height: 1.55;
    max-width: 460px;
  }

  .plat-canvas-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .plat-canvas {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow:
      0 1px 0 rgba(255,255,255,0.5) inset,
      0 12px 40px -16px rgba(0,0,0,0.08);
    overflow: hidden;
    position: relative;
  }
  .plat-canvas-body {
    position: relative;
    height: 380px;
    overflow: hidden;
  }
  /* Crossfade only — no transform. The translateY rise was causing visible
     jitter when the user lingered near a stage boundary and idx flipped. */
  .plat-view {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 260ms ease;
  }
  .plat-view.active {
    opacity: 1;
    pointer-events: auto;
  }


  /* ---- App-accurate mock components ---- */
  .mk {
    background: var(--bg-card);
    border-radius: 10px;
    overflow: hidden;
    font-family: var(--font-sans);
    font-size: 11px;
  }
  /* Sidebar sliver */
  .mk-sidebar {
    background: var(--bg);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    padding: 10px 8px;
    gap: 2px;
    width: 44px;
    flex-shrink: 0;
  }
  .mk-sidebar-item {
    width: 28px; height: 28px;
    border-radius: 6px;
    display: grid; place-items: center;
    color: var(--muted-fg);
  }
  .mk-sidebar-item.active {
    background: var(--accent);
    color: var(--fg);
  }
  .mk-sidebar-logo {
    width: 22px; height: 22px;
    margin: 0 4px 8px;
    display: block;
    flex-shrink: 0;
  }
  /* Page header bar */
  .mk-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 14px;
    border-bottom: 1px solid var(--border);
    min-height: 38px;
  }
  .mk-header-title {
    font: 500 12px/1 var(--font-sans);
    color: var(--fg);
  }
  .mk-btn-primary {
    display: inline-flex; align-items: center; gap: 4px;
    font: 600 10px/1 var(--font-sans);
    color: var(--primary-fg);
    background: var(--primary);
    padding: 5px 10px;
    border-radius: 6px;
    border: 0;
  }
  .mk-btn-ghost {
    display: inline-flex; align-items: center; gap: 4px;
    font: 500 10px/1 var(--font-sans);
    color: var(--muted-fg);
    background: transparent;
    border: 1px solid var(--border);
    padding: 4px 8px;
    border-radius: 6px;
  }
  .mk-body { flex: 1; min-width: 0; }
  .mk-content { padding: 14px; }
  .mk-shell { display: flex; height: 100%; }

  /* Section label (uppercase muted) */
  .mk-label {
    font: 500 9px/1 var(--font-sans);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted-fg);
    margin-bottom: 8px;
  }

  /* Action cards (blueprint editor) */
  .mk-action {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 6px;
    background: var(--bg-card);
  }
  .mk-action:last-child { margin-bottom: 0; }
  .mk-action-bar {
    display: flex; align-items: center; gap: 6px;
    padding: 6px 10px;
    background: var(--accent);
    border-bottom: 1px solid var(--border);
    font: 500 10px/1 var(--font-sans);
  }
  .mk-action-bar .mk-grip {
    color: var(--muted-fg);
    font-size: 9px;
    cursor: grab;
    letter-spacing: -1px;
  }
  .mk-exec-badge {
    display: inline-flex; align-items: center; justify-content: center;
    width: 16px; height: 16px;
    border-radius: 4px;
    font: 600 9px/1 var(--font-mono);
  }
  .mk-exec-badge.muted { background: var(--accent); color: var(--muted-fg); }
  .mk-exec-badge.primary { background: var(--primary-muted); color: var(--primary); }
  .mk-action-name { color: var(--fg); font-weight: 500; }
  .mk-prop-row {
    display: flex; align-items: center; gap: 6px;
    font-size: 10px;
  }
  .mk-prop-val {
    flex: 1;
    padding: 3px 6px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    color: var(--fg);
    font: 400 10px/1.3 var(--font-mono);
  }

  /* Task rail (left list) */
  .mk-task-list {
    display: flex; flex-direction: column; gap: 2px;
  }
  .mk-task-item {
    display: flex; align-items: center; gap: 6px;
    padding: 5px 8px;
    border-radius: 6px;
    font: 400 10px/1 var(--font-sans);
    color: var(--fg);
  }
  .mk-task-item.active {
    background: var(--accent);
    font-weight: 500;
  }

  /* Jobs table */
  .mk-table { width: 100%; border-collapse: collapse; }
  .mk-table th {
    text-align: left;
    font: 500 10px/1 var(--font-sans);
    color: var(--muted-fg);
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
  }
  .mk-table td {
    font: 400 11px/1.3 var(--font-sans);
    color: var(--fg);
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
  }
  .mk-table tbody tr:last-child td { border-bottom: 0; }
  .mk-table tbody tr:hover { background: color-mix(in oklch, var(--accent) 50%, transparent); }
  .mk-badge {
    display: inline-flex; align-items: center; gap: 3px;
    font: 600 9px/1 var(--font-sans);
    padding: 2px 8px;
    border-radius: 4px;
  }
  .mk-badge.success {
    background: var(--success-muted);
    color: var(--success-muted-fg);
  }
  .mk-badge.info {
    background: var(--info-muted);
    color: var(--info-muted-fg);
  }
  .mk-badge.warn {
    background: var(--warning-muted);
    color: var(--warning-muted-fg);
  }
  .mk-meta { color: var(--muted-fg); font-variant-numeric: tabular-nums; }

  /* Tabs (used in Iterate view) */
  .mk-tabs {
    display: flex; gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 14px;
  }
  .mk-tab {
    font: 400 10px/1 var(--font-sans);
    color: var(--muted-fg);
    padding: 8px 10px;
  }
  .mk-tab.active {
    font-weight: 500;
    color: var(--fg);
    border-bottom: 2px solid var(--primary);
    margin-bottom: -1px;
  }

  /* Pipeline diagram (used in Audit/chat reply) */
  .mk-pipeline {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 8px;
  }
  .mk-pipeline-row {
    display: flex; align-items: center; flex-wrap: wrap; gap: 0;
  }
  .mk-pipeline-step {
    display: inline-flex; align-items: center; gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 4px 8px;
    font: 500 9px/1 var(--font-sans);
    white-space: nowrap;
  }
  .mk-pipeline-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 14px; height: 14px;
    border-radius: 3px;
    background: var(--primary-muted);
    color: var(--primary);
    font: 600 8px/1 var(--font-sans);
  }
  .mk-pipeline-arrow {
    color: var(--border-strong);
    font-size: 10px;
    padding: 0 3px;
  }

  /* Chat / assistant */
  .mk-chat { display: flex; flex-direction: column; gap: 10px; }
  .mk-chat-msg {
    max-width: 88%;
    padding: 10px 14px;
    border-radius: 12px;
    font: 400 11px/1.55 var(--font-sans);
    color: var(--fg);
  }
  .mk-chat-msg.user {
    align-self: flex-end;
    background: var(--primary);
    color: var(--primary-fg);
    border-bottom-right-radius: 4px;
  }
  .mk-chat-msg.bot {
    align-self: flex-start;
    background: var(--bg);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
  }
  .mk-chat-sender {
    font: 600 8px/1 var(--font-sans);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 5px;
  }
  .mk-chat-input {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-card);
    font: 400 10px/1 var(--font-sans);
    color: var(--muted-fg);
    margin-top: 4px;
  }

  /* ---------- CASE STUDIES ---------- */
  .cases {
    background: transparent;
  }
  .cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 28px 24px;
    display: flex; flex-direction: column;
    gap: 18px;
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
    position: relative;
    overflow: hidden;
  }
  .case-card::before {
    content: "";
    position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--primary);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 280ms ease;
  }
  .case-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-strong);
    box-shadow: 0 18px 40px -22px color-mix(in oklch, var(--primary) 30%, transparent);
  }
  .case-card:hover::before { transform: scaleY(1); }
  .case-tag {
    display: inline-flex; align-items: center; gap: 8px;
    font: 600 10.5px/1 var(--font-sans);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--primary);
  }
  .case-co {
    font: 500 22px/1.22 var(--font-serif);
    letter-spacing: -0.018em;
  }
  .case-co em { color: var(--primary-deep); font-style: italic; }
  .case-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 12px;
    border-top: 1px dashed var(--border);
    padding-top: 16px;
  }
  .case-metric {
    display: flex; flex-direction: column;
  }
  .case-metric .cm-num {
    font: 500 32px/1 var(--font-serif);
    color: var(--primary-deep);
    letter-spacing: -0.025em;
    font-variant-numeric: tabular-nums;
  }
  .case-metric .cm-lbl {
    font-size: 12px;
    color: var(--muted-fg);
    line-height: 1.4;
    margin-top: 4px;
  }
  .case-summary {
    font-size: 14px; line-height: 1.55;
    color: var(--fg-soft);
  }
  /* ---------- CTA ---------- */
  .cta {
    padding: 96px 0 144px;
    background:
      radial-gradient(60% 80% at 50% 0%, color-mix(in oklch, var(--primary) 28%, transparent) 0%, transparent 70%);
    text-align: center;
    border-top: 1px solid var(--border);
  }
  .cta h2 {
    font-size: clamp(40px, 4.5vw, 64px);
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -0.024em;
  }
  .cta h2 .accent { color: var(--primary-deep); font-style: italic; font-weight: 400; }
  .cta p {
    font-size: 18px; color: var(--fg-soft);
    max-width: 560px; margin: 0 auto 36px;
  }
  /* When the lede paragraph is absent, the form sits directly under the H2 —
     replace the lost margin-bottom from the deleted <p>. */
  .cta h2 + .demo-form { margin-top: 64px; }
  .demo-form {
    max-width: 760px;
    margin: 0 auto;
    padding: 28px;
    background: color-mix(in oklch, var(--bg-card) 94%, transparent);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 24px 70px -42px color-mix(in oklch, var(--primary) 42%, transparent);
    text-align: left;
  }
  .demo-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
  .demo-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
  }
  .demo-field.full { grid-column: 1 / -1; }
  .demo-field label {
    font: 600 12px/1 var(--font-sans);
    color: var(--fg);
  }
  .demo-field input,
  .demo-field select,
  .demo-field textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
    color: var(--fg);
    font: 400 14px/1.4 var(--font-sans);
    padding: 12px 13px;
    outline: none;
    accent-color: var(--primary);
    color-scheme: light;
    transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
  }
  .demo-field select {
    appearance: none;
    background-image:
      linear-gradient(45deg, transparent 50%, var(--muted-fg) 50%),
      linear-gradient(135deg, var(--muted-fg) 50%, transparent 50%);
    background-position:
      calc(100% - 18px) calc(50% + 1px),
      calc(100% - 13px) calc(50% + 1px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 38px;
  }
  .demo-field textarea {
    min-height: 116px;
    resize: vertical;
  }
  .demo-field input:focus,
  .demo-field select:focus,
  .demo-field textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px color-mix(in oklch, var(--primary) 16%, transparent);
    background: var(--bg-card);
  }
  .demo-form-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-top: 22px;
  }
  .demo-status {
    display: none;
    margin-top: 14px;
    padding: 13px 14px;
    border-radius: 12px;
    background: color-mix(in oklch, var(--success) 12%, var(--bg-card));
    border: 1px solid color-mix(in oklch, var(--success) 28%, var(--border));
    color: var(--fg);
    font: 500 13px/1.45 var(--font-sans);
  }
  .demo-status.visible { display: block; }
  .demo-status a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
  }
  .form-honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
  }

  /* ---------- FOOTER ---------- */
  .footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 48px 0 36px;
    color: var(--muted-fg);
    font-size: 13px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 36px;
  }
  .footer-grid h5 {
    font: 600 11px/1 var(--font-sans);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--fg);
    margin-bottom: 14px;
  }
  .footer-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex; flex-direction: column;
    gap: 10px;
  }
  .footer-grid a:hover { color: var(--fg); }
  .footer-brand-logo { margin-bottom: 14px; }
  .footer-brand-tagline {
    margin-top: 14px;
    max-width: 320px;
  }
  .footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    font-size: 12.5px;
  }
  .footer-legal-links {
    display: flex;
    gap: 18px;
  }

  /* "Backed by Y Combinator" badge */
  .footer-yc {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 18px;
    font: 500 12.5px/1 var(--font-sans);
    color: var(--fg-soft);
  }
  .footer-yc-mark {
    width: 14px; height: 14px;
    display: block;
    border-radius: 2px;
  }
  .footer-yc-text {
    color: var(--yc-orange);
    font-weight: 600;
  }

  /* ---- Dots background ----
     Subtle dotted texture for sections that want differentiation from the
     cream-only sections. Renders above body::before's fade overlay because
     `body > * { z-index: 1 }`. Default intensity is 14% of the foreground
     color; per-section overrides via inline `style="--dot-intensity: N"`
     create a vertical fade pattern down the page. */
  .has-dots {
    --dot-intensity: 14;
    position: relative;
    background-image: radial-gradient(
      color-mix(in oklch, var(--fg) calc(var(--dot-intensity) * 1%), transparent) 1px,
      transparent 1.4px
    );
    background-size: 28px 28px;
    background-position: 0 0;
    background-attachment: fixed;
  }

  /* ---- Process-tree workflow nodes ---- */
  .wf-node .wf-step-num {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 20px; height: 20px;
    padding: 0 5px;
    border-radius: 5px;
    border: 1.5px solid var(--border-strong);
    font: 600 11px/1 var(--font-sans);
    color: var(--muted-fg);
    flex-shrink: 0;
  }
  .wf-node.primary .wf-step-num {
    border-color: var(--primary-fg);
    color: var(--primary-fg);
  }
  .wf-node .wf-name-row {
    display: flex; align-items: center; gap: 7px;
  }
  .wf-chip {
    position: absolute;
    font: 500 9px/1 var(--font-mono);
    color: var(--muted-fg);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 9px;
    padding: 3px 8px;
    white-space: nowrap;
    transform: scale(0.7);
    opacity: 0;
    transition: transform 380ms cubic-bezier(.34,1.56,.64,1), opacity 280ms ease;
  }
  .wf-chip.in { transform: scale(1); opacity: 1; }

  /* Reveal-on-scroll utility */
  .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 600ms ease, transform 600ms ease;
  }
  .reveal.in {
    opacity: 1;
    transform: translateY(0);
  }

  /* ---------- MOBILE NAV (hamburger) ---------- */
  .nav-toggle {
    display: none;
    align-items: center; justify-content: center;
    flex-direction: column;
    gap: 4px;
    width: 40px; height: 40px;
    padding: 0;
    margin-left: 4px;
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    cursor: pointer;
    transition: background 140ms ease, border-color 140ms ease;
  }
  .nav-toggle:hover { background: var(--accent); }
  .nav-toggle-bar {
    display: block;
    width: 18px; height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 220ms ease, opacity 160ms ease;
  }
  .nav.open .nav-toggle-bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav.open .nav-toggle-bar:nth-child(2) { opacity: 0; }
  .nav.open .nav-toggle-bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  /* ---------- BREAKPOINTS ----------
     1024 — laptop: tighten paddings & type
     1000 — tablet (existing): single-column shifts + canvas adjustments
      860 — small tablet/large phone: hamburger nav appears
      640 — phone: tighter padding, single-column grids, smaller type
      420 — small phone: minimum paddings, all-stacked grids
  ------------------------------------- */

  @media (max-width: 1024px) {
    .container,
    .container-narrow { padding: 0 24px; }
    .section { padding: 56px 0 104px; }
    .hero { padding: 128px 0 88px; } /* 64 + 64 (nav) */
    .cta { padding: 72px 0 120px; }
    h1 { font-size: 56px; }
    h2 { font-size: 40px; }
    .hero-meta { font-size: 12.5px; }
    /* Rulers framing content column don't make sense when the content
       fills the viewport — they'd land at the edges and look broken. */
    body::after { display: none; }
  }

  @media (max-width: 1000px) {
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .cases-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    h1 { font-size: 48px; }
    h2 { font-size: 36px; }

    .industries-inner { gap: 24px; }
    .nav-inner { gap: 16px; }

    /* Platform mobile: same slideshow pattern as .how — single col, all
       sections grid-stack into one cell so container hugs tallest, only
       the active section is visible. Stack height auto so it doesn't
       leave a gap between text and canvas. */
    .plat-track { height: 160vh; margin-top: 24px; }
    .plat-stack {
      grid-template-columns: 1fr;
      gap: 16px;
      height: auto;
      align-content: start;
    }
    .plat-sections {
      display: grid;
      grid-template-columns: 1fr;
    }
    .plat-section {
      grid-column: 1;
      grid-row: 1;
      align-self: center;
      padding: 0;
      border: none;
      opacity: 0;
      pointer-events: none;
      transition: opacity 200ms ease;
    }
    /* Hide brackets on mobile — slideshow stack would have all three pairs
       overlap, and there's no spatial sequence to frame anyway. */
    .plat-section::before, .plat-section::after { display: none; }
    .plat-section:last-child { border: none; }
    .plat-section.active { opacity: 1; pointer-events: auto; }
    .plat-canvas-body { height: 320px; }
    .plat-body { padding-left: 0; max-width: none; }
    .plat-title { font-size: 24px; }
    /* The Audit/chat mock fits more snugly on mobile when the step-by-step
       explainer is dropped — the diagram + last-run summary carry the idea. */
    .mk-chat-explainer { display: none; }

    /* Mobile: collapse to single column slideshow. All steps stack in one
       grid cell so the container sizes to the tallest step (no dead space
       below shorter steps); only the active step is visible via opacity.
       Height is auto so the pinned stack hugs its content — the desktop's
       calc(100vh - 76px) leaves a gap when content is shorter than viewport. */
    .how-track { height: 160vh; }
    .how-stack {
      grid-template-columns: 1fr;
      gap: 16px;
      height: auto;
      align-content: start;
    }
    .how-steps {
      display: grid;
      grid-template-columns: 1fr;
    }
    .how-step {
      grid-column: 1;
      grid-row: 1;
      align-self: center;
      opacity: 0;
      pointer-events: none;
      border-left: none;
      padding: 0;
      margin: 0;
      transition: opacity 200ms ease;
    }
    .how-step::before { display: none; }
    .how-step.active { opacity: 1; pointer-events: auto; }
    .how-step .hs-h { font-size: 22px; line-height: 1.2; margin-bottom: 8px; }
    .how-step .hs-b { font-size: 14.5px; line-height: 1.5; }
    .how-canvas { max-height: 50vh; }
  }

  /* Default: mobile-only nav links are hidden on desktop. The media query
     below flips them to display:block at <= 860px (it must come after this
     default rule for the cascade to resolve correctly — same specificity,
     later rule wins). */
  .nav-link-mobile { display: none; }

  @media (max-width: 860px) {
    .nav-toggle { display: inline-flex; }
    .nav-links {
      position: absolute;
      top: 100%; left: 0; right: 0;
      flex-direction: column;
      align-items: stretch;
      gap: 2px;
      padding: 10px 16px 14px;
      background: var(--bg);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 16px 32px -20px rgba(0,0,0,0.18);
      transform: translateY(-8px);
      opacity: 0;
      pointer-events: none;
      transition: opacity 200ms ease, transform 200ms ease;
    }
    .nav.open .nav-links {
      transform: translateY(0);
      opacity: 1;
      pointer-events: auto;
    }
    .nav-links a {
      padding: 12px 14px;
      border-radius: 8px;
      font-size: 15px;
      color: var(--fg);
    }
    /* Hide the inline Login + See-a-demo cluster on mobile — they're surfaced
       inside the dropdown via the .nav-link-mobile class instead. */
    .nav-cta-btn { display: none; }
    .nav-link-mobile { display: block; }
    /* Spacing between primary nav links and the auth/CTA cluster. */
    .nav-links a:not(.nav-link-mobile) + .nav-link-mobile {
      margin-top: 12px;
    }
    /* Mobile Login styled as ghost button to match desktop. */
    .nav-links a.nav-link-mobile:not(.nav-link-mobile-cta) {
      border: 1px solid var(--border-strong);
      text-align: center;
      font-weight: 500;
    }
    /* Mobile primary CTA — emphasized like the desktop terracotta button.
       Selector specificity bumped via the .nav-links prefix so it overrides
       `.nav-links a { color: var(--fg) }` defined earlier in this block. */
    .nav-links a.nav-link-mobile-cta {
      background: var(--primary);
      color: var(--primary-fg);
      text-align: center;
      font-weight: 500;
      margin-top: 6px;
    }
  }

  @media (max-width: 720px) {
    .demo-form { padding: 20px; }
    .demo-form-grid { grid-template-columns: 1fr; }
    .demo-form-actions {
      align-items: stretch;
      flex-direction: column;
    }
    .demo-form-actions .btn { width: 100%; }
  }

  @media (max-width: 640px) {
    .container,
    .container-narrow { padding: 0 20px; }

    .section { padding: 64px 0; }
    .section-head { margin-bottom: 36px; max-width: 100%; }

    /* Type */
    h1 { font-size: 38px; }
    h2 { font-size: 28px; }
    h3 { font-size: 19px; }
    .eyebrow { margin-bottom: 14px; font-size: 12.5px; }

    /* Hero */
    .hero { padding: 98px 0 64px; } /* 40 + 58 (mobile nav) */
    .hero-h1 {
      font-size: clamp(34px, 9vw, 44px);
      margin-bottom: 18px;
      line-height: 1.05;
    }
    .hero-sub { font-size: 16px; margin-bottom: 26px; }
    .hero-meta {
      margin-top: 28px;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      font-size: 12.5px;
      line-height: 1.5;
    }
    .hero-ctas { width: 100%; }
    .hero-ctas .btn { flex: 1 1 auto; }
    .btn-lg { height: 44px; padding: 0 18px; font-size: 14px; }

    /* Industries — stack label above the track */
    .industries { padding: 22px 0; }
    .industries-inner {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
    }
    .industries-label {
      max-width: none;
      padding-right: 0;
      margin-right: 0;
      background: transparent;
    }
    .industries-track-wrap { width: 100%; }
    .industries-track { gap: 36px; }
    .ind-item { font-size: 13px; }

    /* How */
    .how-canvas { padding: 16px; border-radius: 12px; }
    .how-canvas-title { margin-bottom: 12px; font-size: 11px; }
    .wf-node { padding: 6px 8px; min-width: 0; font-size: 11px; }
    .wf-node .wf-name { font-size: 11px; }
    .wf-node .wf-step-num { min-width: 18px; height: 18px; padding: 0 4px; font-size: 10px; }
    .wf-chip { font-size: 8.5px; padding: 2px 6px; }
    .how-step .hs-h { font-size: 22px; }
    .how-step .hs-b { font-size: 14px; }

    /* Platform */
    .plat-section-head { gap: 12px; }
    .plat-title { font-size: 20px; }
    .plat-body { font-size: 14px; }
    .plat-canvas-body { height: 340px; }
    .mk-table th,
    .mk-table td { padding: 8px 10px; }
    /* Hide the "Created" column on phones to keep the runs table readable */
    .mk-table th:nth-child(4),
    .mk-table td:nth-child(4) { display: none; }

    /* Cases */
    .case-card { padding: 22px 22px 20px; gap: 14px; }
    .case-co { font-size: 19px; }
    .case-summary { font-size: 13.5px; }
    .case-metric .cm-num { font-size: 28px; }
    .case-metric .cm-lbl { font-size: 11.5px; }

    /* CTA */
    .cta { padding: 72px 0; }
    .cta h2 { font-size: clamp(30px, 7.5vw, 40px); margin-bottom: 18px; }
    .cta p { font-size: 15px; margin-bottom: 28px; }
    .demo-form { padding: 20px 18px; border-radius: 14px; }
    .demo-field input,
    .demo-field select,
    .demo-field textarea { padding: 11px 12px; font-size: 15px; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
    }
  }

  @media (max-width: 420px) {
    .container,
    .container-narrow { padding: 0 16px; }
    .nav-inner { height: 58px; }
    .hero { margin-top: -58px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .case-metrics { grid-template-columns: 1fr 1fr; gap: 12px 14px; }
    .hero-ctas { flex-direction: column; align-items: stretch; }
    .hero-ctas .btn { width: 100%; }
    h1 { font-size: 34px; }

    /* Engagement workflow: labels were brushing against bubble edges on
       sub-420px phones. Trim padding, step-num footprint, gap, and font
       sizes so the longest label ("Classify & Route") still has breathing
       room inside its bubble. */
    .wf-node { padding: 5px 7px; }
    .wf-node .wf-name { font-size: 10px; }
    .wf-node .wf-name-row { gap: 5px; }
    .wf-node .wf-step-num { min-width: 16px; height: 16px; padding: 0 3px; font-size: 9px; }
    .wf-chip { font-size: 8px; padding: 2px 5px; }
  }

  /* ========================================================
     Page-specific — careers.html
     ======================================================== */
  .careers {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 32px 96px;
    min-height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .careers h1 {
    font: 500 40px/1.1 var(--font-serif);
    letter-spacing: -0.025em;
    margin-bottom: 16px;
  }
  .careers p {
    font-size: 15px; line-height: 1.7;
    color: var(--fg-soft);
    margin-bottom: 14px;
  }
  .careers p:last-child { margin-bottom: 0; }
  .careers a { color: var(--primary); }
  .careers a:hover { text-decoration: underline; }

  /* ========================================================
     Page-specific — privacy.html / terms.html (.legal)
     ======================================================== */
  .legal {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 32px 96px;
  }
  .legal h1 {
    font: 500 40px/1.1 var(--font-serif);
    letter-spacing: -0.025em;
    margin-bottom: 8px;
  }
  .legal .updated {
    font-size: 13px; color: var(--muted-fg); margin-bottom: 48px;
  }
  .legal h2 {
    font: 600 18px/1.3 var(--font-sans);
    margin-top: 40px; margin-bottom: 12px;
    color: var(--fg);
  }
  .legal h3 {
    font: 600 15px/1.3 var(--font-sans);
    margin-top: 24px; margin-bottom: 8px;
    color: var(--fg);
  }
  .legal p, .legal li {
    font-size: 14px; line-height: 1.7;
    color: var(--fg-soft); margin-bottom: 12px;
  }
  .legal ul {
    padding-left: 20px; margin-bottom: 12px;
  }
  .legal a { color: var(--primary); }
  .legal a:hover { text-decoration: underline; }

  @media (max-width: 640px) {
    .careers { padding: 48px 20px 72px; }
    .careers h1 { font-size: 28px; }
    .legal { padding: 48px 20px 72px; }
    .legal h1 { font-size: 28px; }
    .legal h2 { font-size: 17px; margin-top: 32px; }
  }