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

    :root {
      --red: #e04343;
      --red-light: #f05757;
      --red-glow: rgba(224, 67, 67, 0.14);
      --red-border: rgba(224, 67, 67, 0.35);
      --black: #16181d;
      --raised: #1e2027;
      --surface: #272a33;
      --border: rgba(255,255,255,0.09);
      --text: #ededed;
      --muted: #a1a4ac;
      --dim: #5a5d66;
      --mono: 'JetBrains Mono', monospace;
      --sans: 'DM Sans', sans-serif;
    }

    html { scroll-behavior: smooth; scroll-padding-top: 70px; }

    body {
      background: var(--black);
      color: var(--text);
      font-family: var(--sans);
      font-size: 20px;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      z-index: 9999;
      pointer-events: none;
      opacity: 0.028;
      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='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
      background-size: 200px 200px;
    }

    a { color: var(--red-light); text-decoration: none; transition: color 0.2s; }
    a:hover { color: #ff6b6b; }

    .wrap { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }

    /* ── Navbar ── */
    .nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      padding: 0.75rem 0;
      background: rgba(22,24,29,0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; }
    .nav-brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; }
    .nav-logo { width: 32px; height: 32px; border-radius: 50%; transition: transform 0.3s; }
    .nav-brand:hover .nav-logo { transform: rotate(-10deg) scale(1.1); }
    .nav-name { font-weight: 800; font-size: 0.95rem; color: var(--text); letter-spacing: -0.3px; }
    .nav-name b { color: var(--red-light); font-weight: 800; }
    .nav-links a {
      font-family: var(--mono); font-size: 0.65rem; letter-spacing: 1.5px;
      text-transform: uppercase; color: var(--muted); margin-left: 1.8rem;
    }
    .nav-links a:hover { color: var(--text); }

    /* ── Hero ── */
    .hero {
      min-height: 100vh;
      display: flex; align-items: center; justify-content: center;
      text-align: center;
      padding: 6rem 1.5rem;
      position: relative;
    }
    .hero::before {
      content: '';
      position: absolute; top: 10%; left: 50%; transform: translateX(-50%);
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(224,67,67,0.07) 0%, transparent 65%);
      pointer-events: none;
    }
    .hero::after {
      content: '';
      position: absolute; bottom: 0; left: 15%; right: 15%; height: 1px;
      background: linear-gradient(90deg, transparent, var(--red-border), transparent);
    }

    .hero-logo {
      width: 110px; height: 110px; border-radius: 50%;
      filter: drop-shadow(0 0 40px rgba(224,67,67,0.22));
      margin-bottom: 2.5rem;
      opacity: 0; animation: pop 0.6s cubic-bezier(0.16,1,0.3,1) 0.1s forwards;
    }
    .hero h1 {
      font-size: clamp(2.4rem, 5vw, 3.2rem);
      font-weight: 800; letter-spacing: -1.5px; line-height: 1.1;
      max-width: 620px; margin: 0 auto 1.2rem;
      opacity: 0; animation: rise 0.7s cubic-bezier(0.16,1,0.3,1) 0.25s forwards;
    }
    .hero h1 em {
      font-style: normal; color: var(--red-light);
      text-decoration: underline; text-decoration-color: rgba(224,67,67,0.4);
      text-underline-offset: 4px; text-decoration-thickness: 2px;
    }
    .hero-sub {
      font-size: 1.05rem; color: var(--muted); max-width: 440px;
      margin: 0 auto 2.2rem; line-height: 1.7;
      opacity: 0; animation: rise 0.7s cubic-bezier(0.16,1,0.3,1) 0.4s forwards;
    }
    .hero-cta {
      opacity: 0; animation: rise 0.7s cubic-bezier(0.16,1,0.3,1) 0.55s forwards;
    }
    .hero-tag {
      font-family: var(--mono); font-size: 0.65rem; letter-spacing: 2.5px;
      text-transform: uppercase; color: var(--dim); margin-top: 3rem;
      opacity: 0; animation: rise 0.7s cubic-bezier(0.16,1,0.3,1) 0.65s forwards;
    }

    .btn {
      font-family: var(--mono); font-size: 0.7rem; font-weight: 700;
      letter-spacing: 2px; text-transform: uppercase;
      padding: 0.85rem 2rem; border-radius: 6px;
      display: inline-block; transition: all 0.25s;
    }
    .btn-fill {
      background: var(--red); color: #fff; border: 2px solid var(--red);
    }
    .btn-fill:hover { background: transparent; color: var(--red-light); }
    .btn-line {
      border: 1px solid var(--border); color: var(--muted); margin-left: 0.8rem;
    }
    .btn-line:hover { border-color: var(--red-border); color: var(--text); }

    @keyframes pop {
      from { opacity: 0; transform: scale(0.85); }
      to { opacity: 1; transform: scale(1); }
    }
    @keyframes rise {
      from { opacity: 0; transform: translateY(18px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* ── Sections ── */
    .section { padding: 4.5rem 0; }
    .section + .section { border-top: 1px solid var(--border); }

    .section-tag {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 3px;
      text-transform: uppercase; color: var(--red-light);
      margin-bottom: 0.8rem;
      display: flex; align-items: center; gap: 0.6rem;
    }
    .section-tag::before {
      content: ''; width: 16px; height: 1px; background: var(--red);
    }
    .section-head {
      font-size: clamp(1.6rem, 3.5vw, 2.2rem);
      font-weight: 800; letter-spacing: -0.8px; line-height: 1.15;
      margin-bottom: 0.6rem;
    }
    .section-sub {
      color: var(--muted); max-width: 440px; font-size: 0.95rem;
    }
    .section-top { margin-bottom: 2.5rem; }

    /* ── Services ── */
    .svc-grid {
      display: grid; grid-template-columns: 1fr 1fr; gap: 0;
      border: 1px solid var(--border); border-radius: 8px;
      overflow: hidden; background: var(--raised);
    }
    .svc {
      padding: 1.5rem 1.6rem;
      border-bottom: 1px solid var(--border);
      border-right: 1px solid var(--border);
    }
    .svc:nth-child(even) { border-right: none; }
    .svc:nth-last-child(-n+2) { border-bottom: none; }

    .svc-name {
      font-weight: 700; font-size: 0.95rem; margin-bottom: 0.3rem;
      display: flex; align-items: baseline; gap: 0.5rem;
    }
    .svc-num {
      font-family: var(--mono); font-size: 0.6rem; color: var(--red);
      letter-spacing: 0.5px;
    }
    .svc-text {
      font-size: 0.88rem; color: var(--muted); line-height: 1.6;
    }

    /* ── How ── */
    .how-row {
      display: grid; grid-template-columns: repeat(2, 1fr);
      gap: 0; border: 1px solid var(--border); border-radius: 8px;
      overflow: hidden; background: var(--raised);
    }
    .how-item { padding: 1.8rem; }
    .how-item { border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); }
    .how-item:nth-child(even) { border-right: none; }
    .how-item:nth-last-child(-n+2) { border-bottom: none; }
    .how-label {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 1.5px;
      text-transform: uppercase; color: var(--red); margin-bottom: 0.8rem;
    }
    .how-item h3 {
      font-size: 1rem; font-weight: 800; margin-bottom: 0.5rem;
      letter-spacing: -0.2px;
    }
    .how-item p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; }

    /* ── About ── */
    .about-cols {
      display: grid; grid-template-columns: 1.1fr 1fr;
      gap: 3rem; align-items: start;
    }
    .about-cols p { color: var(--muted); font-size: 0.95rem; margin-bottom: 1rem; }
    .about-cols p:last-child { margin-bottom: 0; }
    .about-cols strong { color: var(--text); }
    .about-pull {
      background: var(--raised); border-left: 3px solid var(--red);
      padding: 1.2rem 1.4rem; border-radius: 0 6px 6px 0; margin-top: 0.5rem;
    }
    .about-pull p { color: var(--text); font-weight: 500; margin: 0; }

    /* ── Contact ── */
    .contact-box {
      background: var(--raised); border: 1px solid var(--border);
      border-radius: 8px; padding: 2.5rem;
      display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem;
      align-items: start;
    }
    .contact-item { margin-bottom: 1.8rem; }
    .contact-item:last-child { margin-bottom: 0; }
    .contact-label {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 2px;
      text-transform: uppercase; color: var(--dim); margin-bottom: 0.25rem;
    }
    .contact-val { font-size: 1.2rem; font-weight: 800; letter-spacing: -0.3px; }
    .contact-val a { color: var(--text); }
    .contact-val a:hover { color: var(--red-light); }
    .contact-note { font-size: 0.9rem; color: var(--muted); line-height: 1.7; }

    /* ── Footer ── */
    footer {
      padding: 2rem 0; border-top: 1px solid var(--border); text-align: center;
    }
    footer p {
      font-family: var(--mono); font-size: 0.6rem;
      letter-spacing: 1.5px; text-transform: uppercase; color: var(--dim);
    }

    /* ── Pain Points ── */
    .pain-list {
      display: grid; grid-template-columns: 1fr 1fr; gap: 0;
      border: 1px solid var(--border); border-radius: 8px;
      overflow: hidden; background: var(--raised);
    }
    .pain {
      padding: 1.5rem 1.8rem;
      border-bottom: 1px solid var(--border);
      border-right: 1px solid var(--border);
    }
    .pain:nth-child(even) { border-right: none; }
    .pain:nth-last-child(-n+2) { border-bottom: none; }
    .pain-q {
      font-size: 0.95rem; font-weight: 700; color: var(--text);
      margin-bottom: 0.3rem; font-style: italic;
    }
    .pain-a {
      font-size: 0.85rem; color: var(--muted); line-height: 1.6;
    }

    /* ── Getting Started ── */
    .steps {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
      border: 1px solid var(--border); border-radius: 8px;
      overflow: hidden; background: var(--raised);
    }
    .step { padding: 1.8rem; }
    .step + .step { border-left: 1px solid var(--border); }
    .step-num {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 1.5px;
      text-transform: uppercase; color: var(--red); margin-bottom: 0.8rem;
    }
    .step h3 {
      font-size: 1rem; font-weight: 800; margin-bottom: 0.5rem;
      letter-spacing: -0.2px;
    }
    .step p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; }

    /* ── Open Source ── */
    .oss-content {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 2.5rem; align-items: start;
    }
    .oss-content p { color: var(--muted); font-size: 0.95rem; margin-bottom: 1rem; }
    .oss-content p:last-child { margin-bottom: 0; }
    .oss-content strong { color: var(--text); }
    .tech-tags {
      display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem;
    }
    .tech-tag {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.5px;
      padding: 0.3rem 0.6rem; border: 1px solid var(--border);
      border-radius: 4px; color: var(--muted); transition: all 0.2s;
    }
    .tech-tag:hover { border-color: var(--red-border); color: var(--text); }

    /* ── Do / Don't ── */
    .dodont {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 0; border: 1px solid var(--border); border-radius: 8px;
      overflow: hidden; background: var(--raised);
    }
    .dodont-col { padding: 1.8rem; }
    .dodont-col + .dodont-col { border-left: 1px solid var(--border); }
    .dodont-head {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 2px;
      text-transform: uppercase; margin-bottom: 1rem; font-weight: 700;
    }
    .dodont-do .dodont-head { color: var(--red-light); }
    .dodont-dont .dodont-head { color: var(--muted); }
    .dodont-list { list-style: none; }
    .dodont-list li {
      font-size: 0.88rem; color: var(--text); line-height: 1.5;
      padding: 0.35rem 0; padding-left: 1.2rem; position: relative;
    }
    .dodont-do .dodont-list li::before {
      content: '+'; position: absolute; left: 0;
      font-family: var(--mono); font-weight: 700; color: var(--red);
    }
    .dodont-dont .dodont-list li::before {
      content: '\00d7'; position: absolute; left: 0.1rem;
      font-family: var(--mono); font-weight: 700; color: var(--muted);
    }

    /* ── Not Included ── */
    .not-included {
      margin-top: 1.2rem; padding: 1.2rem 1.5rem;
      border: 1px dashed var(--border); border-radius: 6px;
    }
    .not-included-head {
      font-family: var(--mono); font-size: 0.6rem; letter-spacing: 2px;
      text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem;
    }
    .not-included-text {
      font-size: 0.85rem; color: var(--muted); line-height: 1.65;
    }

    /* ── Self-check ── */
    .check-list {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 0.6rem 2rem; margin-bottom: 1.6rem;
    }
    .check-item {
      display: flex; align-items: flex-start; gap: 0.8rem;
      padding: 0.7rem 0.8rem;
      border: 1px solid var(--border); border-radius: 6px;
      background: var(--raised);
      font-size: 0.88rem; color: var(--text); line-height: 1.5;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
      user-select: none;
    }
    .check-item:hover {
      border-color: var(--red-border);
      background: #23252d;
    }
    .check-input {
      position: absolute; opacity: 0; pointer-events: none;
      width: 0; height: 0;
    }
    .check-box {
      flex-shrink: 0; width: 16px; height: 16px; margin-top: 2px;
      border: 1.5px solid var(--red); border-radius: 3px;
      display: inline-flex; align-items: center; justify-content: center;
      transition: background 0.15s, border-color 0.15s;
      position: relative;
    }
    .check-box::after {
      content: ''; width: 9px; height: 5px;
      border-left: 2px solid #fff; border-bottom: 2px solid #fff;
      transform: rotate(-45deg) translate(1px, -1px) scale(0);
      transition: transform 0.15s cubic-bezier(0.16,1,0.3,1);
    }
    @keyframes check-wink {
      0%, 100% { box-shadow: 0 0 0 0 rgba(224,67,67,0); }
      50% { box-shadow: 0 0 0 5px rgba(224,67,67,0.25); }
    }
    .check-list.visible .check-item:first-child .check-box {
      animation: check-wink 1.6s ease-in-out 0.8s 2;
    }
    .check-list.visible .check-item:first-child:has(.check-input:checked) .check-box {
      animation: none;
    }
    .check-input:checked ~ .check-box {
      background: var(--red); border-color: var(--red);
    }
    .check-input:checked ~ .check-box::after {
      transform: rotate(-45deg) translate(1px, -1px) scale(1);
    }
    .check-input:checked ~ .check-text {
      color: var(--muted);
    }
    .check-input:focus-visible ~ .check-box {
      outline: 2px solid var(--red-light); outline-offset: 2px;
    }
    .check-text { flex: 1; }

    .check-cta {
      padding: 1.6rem 1rem 1.4rem;
      border-top: 1px solid var(--border); margin-top: 0.8rem;
      text-align: center;
    }
    .check-meter {
      width: 100%; max-width: 520px; margin: 0 auto 1.2rem;
      height: 6px; background: rgba(255,255,255,0.06);
      border-radius: 3px; overflow: hidden;
    }
    .check-meter-fill {
      height: 100%; width: 0%;
      background: linear-gradient(90deg, #4caf50 0%, #f5b041 55%, var(--red) 100%);
      transition: width 0.4s cubic-bezier(0.16,1,0.3,1);
      border-radius: 3px;
    }
    .check-verdict-head {
      font-size: 1.2rem; font-weight: 800; color: var(--text);
      letter-spacing: -0.3px; margin-bottom: 0.4rem;
      transition: color 0.3s;
    }
    .check-verdict-sub {
      font-size: 0.9rem; color: var(--muted);
      max-width: 520px; margin: 0 auto;
    }
    .check-cta[data-tier="clean"] .check-verdict-head { color: #7cc47f; }
    .check-cta[data-tier="minor"] .check-verdict-head { color: #a3c47f; }
    .check-cta[data-tier="watch"] .check-verdict-head { color: #f5b041; }
    .check-cta[data-tier="risk"] .check-verdict-head { color: #e87b3a; }
    .check-cta[data-tier="urgent"] .check-verdict-head { color: var(--red-light); }

    /* ── Scroll reveal ── */
    .reveal {
      opacity: 0; transform: translateY(20px);
      transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1),
                  transform 0.6s cubic-bezier(0.16,1,0.3,1);
    }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    .reveal-d1 { transition-delay: 0.08s; }
    .reveal-d2 { transition-delay: 0.16s; }

    /* ── Mobile ── */
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hero { min-height: auto; padding: 8rem 1.5rem 4rem; }
      .hero-logo { width: 90px; height: 90px; margin-bottom: 2rem; }
      .section { padding: 3.5rem 0; }
      .svc-grid { grid-template-columns: 1fr; }
      .svc { border-right: none; }
      .svc:nth-last-child(2) { border-bottom: 1px solid var(--border); }
      .svc:last-child { border-bottom: none; }
      .how-row { grid-template-columns: 1fr; }
      .how-item { border-right: none; border-bottom: 1px solid var(--border); }
      .how-item:last-child { border-bottom: none; }
      .about-cols { grid-template-columns: 1fr; gap: 2rem; }
      .pain-list { grid-template-columns: 1fr; }
      .pain { border-right: none; }
      .pain:nth-last-child(2) { border-bottom: 1px solid var(--border); }
      .pain:last-child { border-bottom: none; }
      .steps { grid-template-columns: 1fr; }
      .step + .step { border-left: none; border-top: 1px solid var(--border); }
      .oss-content { grid-template-columns: 1fr; gap: 1.5rem; }
      .check-list { grid-template-columns: 1fr; gap: 0.5rem; }
      .dodont { grid-template-columns: 1fr; }
      .dodont-col + .dodont-col { border-left: none; border-top: 1px solid var(--border); }
      .contact-box { grid-template-columns: 1fr; padding: 1.8rem; gap: 1.5rem; }
      .hero-cta .btn-line { margin-left: 0; margin-top: 0.5rem; display: block; }
      .hero-cta .btn-fill { display: block; }
    }

    @media (max-width: 480px) {
      body { font-size: 16px; }
      .wrap { padding: 0 1.2rem; }
      .hero { padding: 7rem 1.2rem 3rem; }
      .contact-val { font-size: 1.05rem; }
    }