:root {
	--bg: #0a0a0a;
	--bg-alt: #141412;
	--bg-card: #16151300;
	--fg: #f5f5f0;
	--fg-dim: #b8b7b1;
	--muted: #6b6a66;
	--subtle: #2a2a26;
	--line: rgba(245, 245, 240, 0.08);
	--line-strong: rgba(245, 245, 240, 0.18);
	--accent: #ff3e1f;
	--accent-warm: #ff7a3e;
	--accent-2: #6efe6e;
	--serif: 'Instrument Sans', 'Times New Roman', Georgia, serif;
	--sans: 'Geist', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
	--mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--sans);
    font-feature-settings: "ss01", "cv11";
    line-height: 1.4;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    cursor: none;
  }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; cursor: none; border: none; background: none; color: inherit; }

  /* ── noise overlay ───────────────────────────────── */
  body::before {
    content: '';
    position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
    opacity: 0.04;
    pointer-events: none;
    z-index: 1;
    mix-blend-mode: overlay;
  }

  /* ── cursor ───────────────────────────────── */
  .cursor-dot {
    position: fixed;
    top: 0; left: 0;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
  }
  .cursor-ring {
    position: fixed;
    top: 0; left: 0;
    width: 36px; height: 36px;
    border: 1px solid rgba(255, 62, 31, 0.6);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
  }
  .cursor-ring.hover { width: 60px; height: 60px; border-color: var(--accent); }
  @media (max-width: 768px) {
    body { cursor: auto; }
    .cursor-dot, .cursor-ring { display: none; }
    a, button { cursor: pointer; }
  }

  /* ── progress bar ───────────────────────────────── */
  .scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    width: 0%;
    background: var(--accent);
    z-index: 1000;
    box-shadow: 0 0 10px var(--accent);
  }

  /* ── nav ───────────────────────────────── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
  }
  .logo {
    font-family: var(--mono);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .logo-mark {
    width: 28px; height: 28px;
    border: 1.5px solid var(--fg);
    position: relative;
    display: grid;
    place-items: center;
  }
  .logo-mark::before, .logo-mark::after {
    content: '';
    position: absolute;
    background: var(--accent);
  }
  .logo-mark::before { width: 8px; height: 1px; }
  .logo-mark::after { width: 1px; height: 8px; }
  .nav-links { display: flex; gap: 32px; align-items: center; }
  .nav-links a {
    font-size: 13px;
    font-weight: 400;
    color: var(--fg-dim);
    transition: color 0.2s;
    position: relative;
  }
  .nav-links a:hover { color: var(--fg); }
  .nav-cta {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    padding: 10px 18px;
    border: 1px solid var(--fg);
    background: var(--fg);
    color: var(--bg);
    text-transform: uppercase;
    transition: all 0.2s;
  }
  .nav-cta:hover { background: var(--accent); color: var(--fg); border-color: var(--accent); }
  .nav-links a.nav-cta {
	color: var(--bg);
  }
  .nav-links a.nav-cta:hover {
	color: var(--fg);
  }
  /* hamburger toggle */
  .nav-toggle {
    display: none;
    width: 28px; height: 28px;
    position: relative;
    border: 1.5px solid var(--fg);
    margin-left: 4px;
    flex-shrink: 0;
    background: transparent;
    transition: border-color 0.3s ease;
  }
  .nav-toggle span {
    position: absolute;
    left: 50%; top: 50%;
    width: 12px; height: 1px;
    background: var(--fg);
    transition: transform 0.3s ease, background 0.3s ease;
  }
  .nav-toggle span:nth-child(1) { transform: translate(-50%, -3px); }
  .nav-toggle span:nth-child(2) { transform: translate(-50%, 3px); }
  .nav-toggle.open { border-color: var(--accent); }
  .nav-toggle.open span { background: var(--accent); }
  .nav-toggle.open span:nth-child(1) { transform: translate(-50%, 0) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { transform: translate(-50%, 0) rotate(-45deg); }

  /* mobile menu overlay */
  .mobile-menu {
    position: fixed; inset: 0;
    z-index: 99;
    background: var(--bg);
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.45s ease, visibility 0.45s ease;
    overflow-y: auto;
  }
  .mobile-menu.open { visibility: visible; opacity: 1; }
  .mobile-menu-grid {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.5;
    mask-image: radial-gradient(ellipse at top right, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at top right, black 20%, transparent 70%);
    pointer-events: none;
  }
  .mobile-menu-inner {
    position: relative; z-index: 2;
    min-height: 100%;
    display: flex; flex-direction: column;
    padding: 100px 24px 40px;
  }
  .mobile-menu-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
  }
  .mobile-menu-status {
    display: flex; align-items: center; gap: 8px;
    color: var(--accent-2);
  }
  .mobile-menu-status .pulse {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent-2);
    box-shadow: 0 0 8px var(--accent-2);
    animation: mobile-pulse 1.6s ease-in-out infinite;
  }
  @keyframes mobile-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
  }
  .mobile-menu-list {
    list-style: none;
    flex-grow: 1;
    margin: 0; padding: 0;
  }
  .mobile-menu-list li {
    border-bottom: 1px solid var(--line);
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .mobile-menu.open .mobile-menu-list li { opacity: 1; transform: translateY(0); }
  .mobile-menu.open .mobile-menu-list li:nth-child(1) { transition-delay: 0.18s; }
  .mobile-menu.open .mobile-menu-list li:nth-child(2) { transition-delay: 0.24s; }
  .mobile-menu.open .mobile-menu-list li:nth-child(3) { transition-delay: 0.30s; }
  .mobile-menu.open .mobile-menu-list li:nth-child(4) { transition-delay: 0.36s; }
  .mobile-menu.open .mobile-menu-list li:nth-child(5) { transition-delay: 0.42s; }
  .mobile-menu-list a {
    display: flex; align-items: baseline; gap: 18px;
    padding: 22px 0;
    font-size: 32px;
    font-weight: 500;
    letter-spacing: -0.03em;
    color: var(--fg);
    line-height: 1;
  }
  .mobile-menu-list a .num {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.15em;
    font-weight: 400;
    flex-shrink: 0;
    width: 28px;
  }
  .mobile-menu-list a .lbl { flex-grow: 1; }
  .mobile-menu-list a .arr {
    font-size: 16px;
    color: var(--muted);
    transition: color 0.2s, transform 0.2s;
  }
  .mobile-menu-list a:active .arr { color: var(--accent); transform: translate(2px, -2px); }
  .mobile-menu-list li.active a .lbl {
    font-family: var(--serif);
    font-style: italic;
    color: var(--accent);
    font-weight: 400;
  }
  .mobile-menu-list li.active a .num { color: var(--accent); }
  .mobile-menu-foot {
    padding-top: 28px;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 24px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease 0s, transform 0.5s ease 0s;
  }
  .mobile-menu.open .mobile-menu-foot {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.5s;
  }
  .mobile-menu-foot .lbl {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .mobile-menu-foot a, .mobile-menu-foot span {
    color: var(--fg-dim);
    font-size: 14px;
  }
  body.menu-open { overflow: hidden; }

  @media (max-width: 768px) {
    nav { padding: 16px 20px; }
    .nav-links { gap: 12px; }
    .nav-links a:not(.nav-cta) { display: none; }
    .nav-toggle { display: block; }
    .nav-cta {
      padding: 9px 14px;
      font-size: 11px;
      letter-spacing: 0.03em;
    }
    .mobile-menu-list a { font-size: 28px; }
  }

  /* ── shared ───────────────────────────────── */
  .container { max-width: 1400px; margin: 0 auto; padding: 0 40px; }
  @media (max-width: 768px) { .container { padding: 0 20px; } }

  .eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }
  .eyebrow::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--accent);
    display: inline-block;
  }
  .section-num {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
  }
  h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.03em; line-height: 0.98; }
  .italic-serif { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.02em; color: var(--accent)}

  /* ── hero ───────────────────────────────── */
  .hero {
    min-height: 100vh;
    padding: 140px 0 80px;
    position: relative;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
  }
  .hero-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: 0.6;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  }
  .hero-glow {
    position: absolute;
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(255, 62, 31, 0.18) 0%, transparent 60%);
    top: 40%; left: 60%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    filter: blur(40px);
  }
  .hero-inner { position: relative; z-index: 2; width: 100%; }
  .hero-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 80px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
  }
  .hero-meta-left { display: flex; gap: 24px; flex-wrap: wrap; }
  .hero-meta-item::before { content: '//'; color: var(--accent); margin-right: 6px; }
  .hero-status {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-2);
  }
  .pulse-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent-2);
    box-shadow: 0 0 12px var(--accent-2);
    animation: pulse 1.6s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
  }
  .hero h1 {
    font-size: clamp(36px, 6vw, 92px);
    font-weight: 500;
    line-height: 0.88;
    letter-spacing: -0.05em;
    margin-bottom: 24px;
  }
  .hero h1 .line { display: block; overflow: hidden; }
  .hero h1 .line > span { display: inline-block; }
  .hero h1 .italic-line {
    font-family: var(--serif);
    font-style: italic;
    font-weight: 400;
    color: var(--accent);
    letter-spacing: -0.03em;
  }
  .hero-sub {
    max-width: 580px;
    font-size: 18px;
    line-height: 1.5;
    color: var(--fg-dim);
    margin-top: 40px;
    margin-bottom: 48px;
  }
  .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 16px 28px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
  }
  .btn-primary {
    background: var(--accent);
    color: var(--fg);
    border: 1px solid var(--accent);
  }
  .btn-primary:hover { background: transparent; color: var(--accent); }
  .btn-secondary {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--line-strong);
  }
  .btn-secondary:hover { border-color: var(--fg); background: rgba(255,255,255,0.04); }
  .btn .arrow { transition: transform 0.3s; }
  .btn:hover .arrow { transform: translateX(4px); }
  .hero-tagline {
    position: absolute;
    bottom: 40px;
    right: 40px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    text-align: right;
    line-height: 1.8;
    letter-spacing: 0.08em;
  }
  .hero-tagline span { color: var(--accent); }
  @media (max-width: 768px) {
    .hero { padding: 120px 0 60px; }
    .hero h1 { font-size: clamp(48px, 14vw, 90px); }
    .hero-meta { flex-direction: column; gap: 16px; margin-bottom: 40px; }
    .hero-tagline { display: none; }
  }

  /* ── ticker ───────────────────────────────── */
  .ticker-wrap {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 24px 0;
    overflow: hidden;
    background: var(--bg-alt);
    position: relative;
  }
  .ticker {
    display: flex;
    gap: 32px;
    white-space: nowrap;
    animation: ticker 40s linear infinite;
  }
  @keyframes ticker {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }
  .ticker-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--fg-dim);
    letter-spacing: 0.02em;
  }
  .ticker-tag {
    background: rgba(255, 62, 31, 0.1);
    border: 1px solid rgba(255, 62, 31, 0.3);
    color: var(--accent);
    padding: 3px 8px;
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .ticker-tag.ok {
    background: rgba(217, 254, 110, 0.08);
    border-color: rgba(217, 254, 110, 0.3);
    color: var(--accent-2);
  }
  .ticker-sep { color: var(--muted); }

  /* ── section shared ───────────────────────────────── */
  section { padding: 120px 0; position: relative; }
  .section-header {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: end;
  }
  .section-header-full { grid-template-columns: 1fr; }
  .section-header h2 {
    font-size: clamp(42px, 6vw, 80px);
    letter-spacing: -0.04em;
  }
  .section-header h2 em {
    font-family: var(--serif);
    color: var(--accent);
    font-weight: 400;
  }
  .section-header p {
    max-width: 480px;
    color: var(--fg-dim);
    font-size: 16px;
    line-height: 1.5;
  }
  @media (max-width: 900px) {
    section { padding: 80px 0; }
    .section-header { grid-template-columns: 1fr; gap: 24px; margin-bottom: 48px; }
  }

  /* ── problem section ───────────────────────────────── */
  .problem { border-bottom: 1px solid var(--line); }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid var(--line);
  }
  .stat {
    padding: 48px 32px 48px 0;
    border-right: 1px solid var(--line);
    position: relative;
  }
  .stat:last-child { border-right: none; padding-right: 0; }
  .stat:first-child { padding-left: 0; }
  .stat:not(:first-child) { padding-left: 32px; }
  .stat-num {
    font-size: clamp(60px, 8vw, 110px);
    font-weight: 500;
    letter-spacing: -0.05em;
    line-height: 1;
    margin-bottom: 16px;
    display: flex;
    align-items: baseline;
    gap: 8px;
  }
  .stat-num .suffix {
    font-size: 0.4em;
    color: var(--accent);
    font-family: var(--mono);
    font-weight: 400;
  }
  .stat-label {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .stat-desc {
    color: var(--fg-dim);
    font-size: 15px;
    line-height: 1.5;
    max-width: 320px;
  }
  @media (max-width: 900px) {
    .stats-grid { grid-template-columns: 1fr; }
    .stat { border-right: none; border-bottom: 1px solid var(--line); padding: 32px 0 !important; }
    .stat:last-child { border-bottom: none; }
  }

  /* ── gap section ───────────────────────────────── */
  .gap {
    background: var(--bg-alt);
    border-bottom: 1px solid var(--line);
  }
  .gap-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    margin-top: 60px;
    align-items: stretch;
    border: 1px solid var(--line);
  }
  .gap-side {
    padding: 48px;
    background: var(--bg);
  }
  .gap-side h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--fg-dim);
  }
  .gap-side p { color: var(--muted); font-size: 14px; line-height: 1.6; margin-bottom: 12px; }
  .gap-side .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 20px; }
  .gap-tag {
    font-family: var(--mono);
    font-size: 10px;
    padding: 4px 10px;
    background: rgba(245, 245, 240, 0.04);
    border: 1px solid var(--line);
    color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .gap-middle {
    padding: 48px 40px;
    background: linear-gradient(180deg, #1a1815 0%, #0a0a0a 100%);
    border-left: 1px solid var(--accent);
    border-right: 1px solid var(--accent);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-width: 320px;
  }
  .gap-middle .ping-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.15em;
    margin-bottom: 16px;
  }
  .gap-middle h3 {
    font-size: 32px;
    margin-bottom: 12px;
  }
  .gap-middle h3 em {
    font-family: var(--serif);
    font-style: italic;
    color: var(--accent);
  }
  .gap-middle p {
    color: var(--fg-dim);
    font-size: 14px;
    line-height: 1.6;
    max-width: 260px;
    margin: 0 auto;
  }
  @media (max-width: 900px) {
    .gap-diagram { grid-template-columns: 1fr; }
    .gap-middle { min-width: 0; border-left: none; border-right: none; border-top: 1px solid var(--accent); border-bottom: 1px solid var(--accent); }
  }

  /* ── tools (pinned horizontal) ───────────────────────────────── */
  .tools {
    padding: 0;
    border-bottom: 1px solid var(--line);
  }
  .tools-intro { padding: 120px 40px 60px 40px; }
  .tools-pin {
    height: 100vh;
    overflow: hidden;
    position: relative;
  }
  .tools-track {
    display: flex;
    height: 100%;
    will-change: transform;
  }
  .tool-panel {
    flex: 0 0 100vw;
    height: 100%;
    padding: 80px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    border-right: 1px solid var(--line);
    position: relative;
  }
  .tool-panel:nth-child(1) { background: var(--bg); }
  .tool-panel:nth-child(2) { background: #0e0d0b; }
  .tool-panel:nth-child(3) { background: #0a0a0a; }

  .tool-num {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 24px;
  }
  .tool-title {
    font-size: clamp(40px, 5vw, 72px);
    line-height: 0.98;
    letter-spacing: -0.04em;
    margin-bottom: 28px;
  }
  .tool-title em {
    font-family: var(--serif);
    font-style: italic;
    color: var(--accent);
    font-weight: 400;
  }
  .tool-desc {
    color: var(--fg-dim);
    font-size: 17px;
    line-height: 1.5;
    margin-bottom: 32px;
    max-width: 480px;
  }
  .tool-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .tool-features li {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--fg-dim);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    letter-spacing: 0.01em;
  }
  .tool-features li::before {
    content: '+';
    color: var(--accent);
    font-weight: 600;
    flex-shrink: 0;
  }

  /* tool visual */
  .tool-visual {
    position: relative;
    aspect-ratio: 1/1;
    border: 1px solid var(--line);
    background: rgba(245, 245, 240, 0.015);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
  }
  .tool-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 32px 32px;
    opacity: 0.5;
    pointer-events: none;
  }
  .tool-visual-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    z-index: 2;
  }
  .tool-visual-dots {
    display: flex;
    gap: 6px;
  }
  .tool-visual-dots span {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--line-strong);
  }
  .tool-visual-dots span:first-child { background: var(--accent); }
  .tool-visual-body {
    position: relative;
    z-index: 2;
    font-family: var(--mono);
    font-size: 12px;
    line-height: 1.8;
    color: var(--fg-dim);
  }
  .tool-visual-body .line { display: block; opacity: 0; }
  .tool-visual-body .prompt { color: var(--accent); }
  .tool-visual-body .ok { color: var(--accent-2); }
  .tool-visual-body .warn { color: var(--accent-warm); }
  .tool-visual-body .dim { color: var(--muted); }

  @media (max-width: 900px) {
    .tools-pin { height: auto; }
    .tools-track { flex-direction: column; height: auto; }
    .tool-panel {
      flex: 0 0 auto;
      grid-template-columns: 1fr;
      padding: 60px 20px;
      gap: 40px;
      min-height: auto;
    }
    .tool-visual { aspect-ratio: 4/3; padding: 20px; }
  }

  /* ── delivery model table ───────────────────────────────── */
  .delivery { border-bottom: 1px solid var(--line); }
  .table-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid var(--line);
    margin-top: 40px;
  }
  .table-compare .row-head {
    padding: 32px 40px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
  }
  .table-compare .row-head:first-child { border-right: 1px solid var(--line); }
  .table-compare .row-head.highlight {
    background: var(--bg-alt);
    color: var(--accent);
    border-right: 1px solid var(--line);
  }
  .table-compare .cell {
    padding: 28px 40px;
    font-size: 17px;
    border-bottom: 1px solid var(--line);
    line-height: 1.4;
    color: var(--fg-dim);
  }
  .table-compare .cell:nth-child(odd) {
    border-right: 1px solid var(--line);
    color: var(--muted);
    font-family: var(--serif);
    font-style: italic;
    font-size: 19px;
  }
  .table-compare .cell.highlight {
    color: var(--fg);
    font-style: normal;
    font-family: var(--sans);
    background: rgba(255, 62, 31, 0.03);
  }
  .table-compare .cell:nth-last-child(-n+2) { border-bottom: none; }
  @media (max-width: 900px) {
  .table-compare {
    grid-template-columns: 1fr;
    border: none;
    margin-top: 32px;
  }

  /* hide the duplicate column headers on mobile — labels go inline instead */
  .table-compare .row-head { display: none; }

  /* each cell becomes a self-labeled, full-width row */
  .table-compare .cell {
    padding: 36px 20px 22px;
    border: 1px solid var(--line);
    border-bottom: none;
    border-right: none !important;
    position: relative;
    font-size: 16px;
  }

  /* mono "// label" sitting above each value */
  .table-compare .cell::before {
    position: absolute;
    top: 14px;
    left: 20px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-style: normal;
    font-weight: 400;
  }
  .table-compare .cell:nth-child(odd) {
    font-size: 17px;
  }
  .table-compare .cell:nth-child(odd)::before {
    content: '// The old model';
    color: var(--muted);
  }
  .table-compare .cell.highlight::before {
    content: '// 4rthur';
    color: var(--accent);
  }

  /* close the bottom of each old/new pair, then space pairs apart */
  .table-compare .cell.highlight {
    border-bottom: 1px solid var(--line);
    margin-bottom: 14px;
  }
  .table-compare .cell.highlight:last-child {
    margin-bottom: 0;
  }

  /* cancel the desktop "no bottom border on last 2" rule */
  .table-compare .cell:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--line);
  }
}

  /* ── efficiency ───────────────────────────────── */
  .efficiency {
    background: var(--bg-alt);
    border-bottom: 1px solid var(--line);
  }
  .eff-table {
    margin-top: 40px;
    border-top: 1px solid var(--line);
  }
  .eff-row {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    border-bottom: 1px solid var(--line);
    padding: 32px 0;
    align-items: center;
    gap: 40px;
    transition: background 0.3s;
  }
  .eff-row:hover { background: rgba(255,255,255,0.02); }
  .eff-cat {
    font-size: 24px;
    font-weight: 500;
    letter-spacing: -0.02em;
  }
  .eff-cat .num {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 4px;
  }
  .eff-old {
    font-family: var(--serif);
    font-style: italic;
    color: var(--muted);
    font-size: 18px;
    position: relative;
  }
  .eff-old::before {
    content: '✗';
    color: var(--accent);
    margin-right: 10px;
    font-family: var(--sans);
    font-weight: 700;
  }
  .eff-new {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--fg);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    position: relative;
  }
  .eff-new::before {
    content: '→';
    color: var(--accent-2);
    margin-right: 10px;
    font-weight: 600;
  }
  @media (max-width: 900px) {
    .eff-row { grid-template-columns: 1fr; gap: 12px; padding: 24px 0; }
    .eff-cat { font-size: 20px; }
  }

  /* ── pricing ───────────────────────────────── */
  .pricing { border-bottom: 1px solid var(--line); }
  .tiers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 40px;
    border: 1px solid var(--line);
  }
  .tier {
    padding: 40px 32px;
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: background 0.3s;
  }
  .tier:last-child { border-right: none; }
  .tier:hover { background: rgba(255, 62, 31, 0.03); }
  .tier.featured {
    background: var(--bg-alt);
    border-top: 2px solid var(--accent);
    margin-top: -1px;
  }
  .tier-label {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .tier-name {
    font-size: 28px;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    line-height: 1.1;
  }
  .tier-price {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--fg-dim);
    padding: 16px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    margin-bottom: 20px;
    letter-spacing: 0.02em;
  }
  .tier-price .amt {
    font-family: var(--sans);
    font-size: 24px;
    color: var(--fg);
    font-weight: 500;
    display: block;
    margin-bottom: 4px;
  }
  .tier-desc {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 24px;
    flex-grow: 1;
  }
  .tier-features {
    list-style: none;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--fg-dim);
    display: flex;
    flex-direction: column;
    gap: 8px;
    letter-spacing: 0.02em;
  }
  .tier-features li::before {
    content: '// ';
    color: var(--accent);
  }
  @media (max-width: 1100px) {
    .tiers { grid-template-columns: 1fr 1fr; }
    .tier:nth-child(2n) { border-right: none; }
    .tier { border-bottom: 1px solid var(--line); }
    .tier:nth-last-child(-n+2) { border-bottom: none; }
  }
  @media (max-width: 640px) {
    .tiers { grid-template-columns: 1fr; }
    .tier { border-right: none !important; border-bottom: 1px solid var(--line); }
    .tier:last-child { border-bottom: none; }
  }

  /* ── pay on success (big moment) ───────────────────────────────── */
  .pos {
    padding: 180px 0 160px;
    text-align: center;
    border-bottom: 1px solid var(--line);
    position: relative;
    overflow: hidden;
  }
  .pos::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse at center, rgba(255, 62, 31, 0.12) 0%, transparent 60%);
    pointer-events: none;
  }
  .pos-eyebrow {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 32px;
  }
  .pos h2 {
    font-size: clamp(56px, 10vw, 160px);
    line-height: 0.92;
    letter-spacing: -0.05em;
    margin-bottom: 24px;
  }
  .pos h2 em {
    font-family: var(--serif);
    font-style: italic;
    color: var(--accent);
    font-weight: 400;
  }
  .pos-sub {
    max-width: 600px;
    margin: 32px auto 0;
    color: var(--fg-dim);
    font-size: 18px;
    line-height: 1.5;
  }
  .pos-guarantees {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 900px;
    margin: 60px auto 0;
    text-align: left;
  }
  .pos-guarantee {
    padding: 32px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.02);
    position: relative;
  }
  .pos-guarantee-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
  }
  .pos-guarantee h4 {
    font-size: 22px;
    margin-bottom: 12px;
  }
  .pos-guarantee p {
    color: var(--fg-dim);
    font-size: 14px;
    line-height: 1.5;
  }
  @media (max-width: 700px) {
    .pos-guarantees { grid-template-columns: 1fr; }
  }

  /* ── competition ───────────────────────────────── */
  .competition { border-bottom: 1px solid var(--line); }
  .comp-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    margin-top: 40px;
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }
  .comp-card {
    padding: 48px 40px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    transition: background 0.3s;
    position: relative;
  }
  .comp-card:hover { background: rgba(255,255,255,0.02); }
  .comp-card.us {
    background: rgba(255, 62, 31, 0.04);
  }
  .comp-card.us:hover { background: rgba(255, 62, 31, 0.07); }
  .comp-vs {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .comp-vs.highlight { color: var(--accent); }
  .comp-card h3 {
    font-size: 32px;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
  }
  .comp-card h3 em {
    font-family: var(--serif);
    font-style: italic;
    color: var(--accent);
    font-weight: 400;
  }
  .comp-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .comp-list li {
    font-size: 14px;
    color: var(--fg-dim);
    line-height: 1.5;
    padding-left: 24px;
    position: relative;
  }
  .comp-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--muted);
  }
  .comp-card.us .comp-list li::before { color: var(--accent); }
  @media (max-width: 900px) {
    .comp-grid { grid-template-columns: 1fr; }
  }

  /* ── CTA ───────────────────────────────── */
  .cta {
    padding: 160px 0;
    text-align: center;
    border-bottom: 1px solid var(--line);
    position: relative;
    background:
      radial-gradient(circle at 20% 50%, rgba(255, 62, 31, 0.08) 0%, transparent 50%),
      radial-gradient(circle at 80% 50%, rgba(217, 254, 110, 0.04) 0%, transparent 50%);
  }
  .cta h2 {
    font-size: clamp(48px, 7vw, 110px);
    letter-spacing: -0.04em;
    line-height: 0.95;
    max-width: 1100px;
    margin: 0 auto 40px;
  }
  .cta h2 em { font-family: var(--serif); font-style: italic; color: var(--accent); font-weight: 400; }
  .cta-sub {
    max-width: 540px;
    margin: 0 auto 48px;
    color: var(--fg-dim);
    font-size: 17px;
    line-height: 1.5;
  }
  .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

  /* ── footer ───────────────────────────────── */
  footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--line);
  }
  .footer-hero {
    font-size: clamp(60px, 15vw, 220px);
    font-weight: 500;
    line-height: 0.85;
    margin-bottom: 60px;
    position: relative;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding: 40px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .footer-col h5 {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 20px;
  }
  .footer-col a {
    display: block;
    color: var(--fg-dim);
    font-size: 14px;
    padding: 6px 0;
    transition: color 0.2s;
  }
  .footer-col a:hover { color: var(--accent); }
  .footer-tag {
    font-family: var(--serif);
    font-style: italic;
    font-size: 20px;
    color: var(--fg-dim);
    max-width: 360px;
    line-height: 1.4;
  }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 32px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
  }
  .footer-bottom .accent { color: var(--accent); }
  @media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; gap: 12px; }
  }

  /* ── reveal classes ───────────────────────────────── */
  .reveal { opacity: 0; transform: translateY(30px); }
  .reveal-line { overflow: hidden; }
  .reveal-line > * { display: block; }