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

  :root {
    --bg-0: #0a0a0b;
    --bg-1: #111114;
    --bg-2: #17171c;
    --bg-3: #1e1e25;
    --bg-card: #13131a;
    --border: rgba(255,255,255,0.07);
    --border-hover: rgba(255,255,255,0.15);
    --accent: #1a6963;
    --accent-soft: rgba(200,55,45,0.15);
    --accent-glow: rgba(200,55,45,0.08);
    --text-0: #f0f0f2;
    --text-1: #a8a8b3;
    --text-2: #5a5a6a;
    --rail-red: #1a6963;
    --closeos-blue: #4265a4;
    --closeos-green: #1a6963;
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'DM Mono', monospace;
  }

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg-0);
    color: var(--text-0);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 3rem;
    height: 64px;
    background: rgba(10,10,11,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
  }

  .nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
  }

  .logo-text {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
  }

  .logo-text span { color: rgb(66 101 164); }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
  }

  .nav-links a {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-1);
    text-decoration: none;
    transition: color 0.2s;
    letter-spacing: 0.01em;
  }

  .nav-links a:hover { color: var(--text-0); }

  .nav-cta {
    background: #ffffff;
    color: #0a0a0b !important;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 500 !important;
    font-size: 14px !important;
    transition: background 0.2s, transform 0.15s !important;
  }

  .nav-cta:hover { background: #e6e6e9 !important; transform: translateY(-1px); }

  /* ── SERVICES DROPDOWN ── */
  .nav-links > li { position: relative; }
  .nav-dropdown > a { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
  .nav-dropdown > a::after {
    content: '';
    width: 6px; height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
    transition: transform 0.2s;
  }
  .nav-dropdown:hover > a::after { transform: rotate(225deg) translateY(-1px); }

  .dropdown-menu {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 540px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem 2rem;
    padding: 1.5rem;
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  }
  .nav-dropdown:hover .dropdown-menu,
  .nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
  .dropdown-menu::before {
    content: '';
    position: absolute;
    top: -14px; left: 0; right: 0;
    height: 14px;
  }
  .dropdown-group h6 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-2);
    margin-bottom: 0.75rem;
    padding-left: 0.75rem;
  }
  .dropdown-group a {
    display: block;
    padding: 9px 12px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-1);
    transition: background 0.15s, color 0.15s;
  }
  .dropdown-group a:hover { background: var(--bg-3); color: var(--text-0); }

  /* ── HERO ── */
  .hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 6rem;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: -200px; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(200,55,45,0.12) 0%, transparent 70%);
    pointer-events: none;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-1);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 2rem;
  }

  .hero-badge-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
  }

  .hero h1 {
    font-family: 'Inter', sans-serif;
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.045em;
    color: #ffffff;
    margin-bottom: 1.5rem;
    max-width: 14ch;
  }

  .hero h1 .line-accent { color: #ffffff; }
  .hero h1 .line-blue { color: #ffffff; }
  .hero h1 .line-purple { color: var(--closeos-green); }

  .hero-sub {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-1);
    max-width: 52ch;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    font-weight: 300;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .btn-primary {
    background: #ffffff;
    color: #0a0a0b;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: background 0.2s, transform 0.15s;
    font-family: var(--font-body);
  }

  .btn-primary:hover { background: #e6e6e9; transform: translateY(-2px); }

  .btn-ghost {
    background: transparent;
    color: var(--text-1);
    padding: 14px 32px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-weight: 500;
    font-size: 15px;
    text-decoration: none;
    transition: border-color 0.2s, color 0.2s, transform 0.15s;
    font-family: var(--font-body);
  }

  .btn-ghost:hover { border-color: var(--border-hover); color: var(--text-0); transform: translateY(-2px); }

  /* ── TECH STRIP ── */
  .tech-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-1);
    overflow: hidden;
  }

  .tech-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
    white-space: nowrap;
    letter-spacing: 0.03em;
  }

  .tech-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

  /* ── SERVICES ── */
  .section {
    padding: 7rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }

  .section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
  }

  .section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-0);
    margin-bottom: 1.25rem;
  }

  .section-sub {
    font-size: 1.05rem;
    color: var(--text-1);
    max-width: 55ch;
    line-height: 1.7;
    font-weight: 300;
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    margin-top: 4rem;
  }

  .service-card {
    background: var(--bg-card);
    padding: 2.5rem 2rem;
    position: relative;
    transition: background 0.2s;
  }

  .service-card:hover { background: var(--bg-2); }

  .service-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 22px;
  }

  .service-card h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
  }

  .service-card p {
    font-size: 14px;
    color: var(--text-1);
    line-height: 1.65;
    font-weight: 300;
  }

  .service-tag {
    display: inline-block;
    margin-top: 1.25rem;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
  }

  /* ── PRODUCTS / OFFERINGS ── */
  .offerings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 4rem;
  }

  .offering-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s;
    cursor: pointer;
    text-decoration: none;
    display: block;
  }

  .offering-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
  }

  .offering-card.rails::before { background: var(--rail-red); }
  .offering-card.react::before { background: var(--closeos-blue); }
  .offering-card.ai::before { background: var(--closeos-green); }
  .offering-card.full::before { background: linear-gradient(90deg, var(--rail-red), var(--closeos-green)); }

  .offering-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
  }

  .offering-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 1.5rem;
  }

  .offering-new {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: rgba(34,212,138,0.2);
    color: var(--closeos-green);
    padding: 4px 10px;
    border-radius: 100px;
  }

  .offering-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-0);
    margin-bottom: 0.5rem;
  }

  .offering-card .tagline {
    font-size: 12px;
    color: var(--text-2);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
  }

  .offering-card p {
    font-size: 14px;
    color: var(--text-1);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 1.5rem;
  }

  .offering-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 1.5rem;
  }

  .offering-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-1);
  }

  .offering-features li::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    flex-shrink: 0;
  }

  .offering-card.rails .offering-features li::before { background: var(--rail-red); }
  .offering-card.react .offering-features li::before { background: var(--closeos-blue); }
  .offering-card.ai .offering-features li::before { background: var(--closeos-green); }
  .offering-card.full .offering-features li::before { background: var(--accent); }

  .offering-cta {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s;
  }

  .offering-card:hover .offering-cta { gap: 10px; }

  .offering-card.rails .offering-cta { color: var(--rail-red); }
  .offering-card.react .offering-cta { color: var(--closeos-blue); }
  .offering-card.ai .offering-cta { color: var(--closeos-green); }
  .offering-card.full .offering-cta { color: var(--text-0); }

  /* ── INTEGRATIONS (same as closeos.fr) ── */
  .integrations-section {
    padding: 6rem 0;
    background: var(--bg-1);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
  }

  .integrations-label {
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-2);
    margin-bottom: 3rem;
  }

  .marquee-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow: hidden;
  }

  .marquee-row {
    display: flex;
    width: max-content;
    animation: marquee 28s linear infinite;
    gap: 1.5rem;
  }

  .marquee-row.reverse {
    animation: marquee-reverse 32s linear infinite;
  }

  @keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }

  @keyframes marquee-reverse {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
  }

  .integration-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 10px 20px;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-1);
    transition: border-color 0.2s, color 0.2s;
  }

  .integration-chip:hover {
    border-color: var(--border-hover);
    color: var(--text-0);
  }

  .integration-chip img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    border-radius: 4px;
  }

  .int-icon {
    width: 20px; height: 20px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
  }

  /* ── PROCESS ── */
  .process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 4rem;
  }

  .step {
    position: relative;
  }

  .step-num {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-2);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
  }

  .step-line {
    height: 1px;
    background: var(--border);
    margin-bottom: 1.5rem;
    position: relative;
  }

  .step-line::before {
    content: '';
    position: absolute;
    top: -3px; left: 0;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
  }

  .step h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: 0.6rem;
    letter-spacing: -0.02em;
  }

  .step p {
    font-size: 13px;
    color: var(--text-1);
    line-height: 1.6;
    font-weight: 300;
  }

  /* ── STATS ── */
  .stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-radius: 16px;
    overflow: hidden;
    margin-top: 5rem;
  }

  .stat-box {
    background: var(--bg-card);
    padding: 2.5rem 2rem;
    text-align: center;
  }

  .stat-num {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-0);
    letter-spacing: -0.05em;
    line-height: 1;
    margin-bottom: 0.5rem;
  }

  .stat-num span { color: var(--accent); }

  .stat-label {
    font-size: 13px;
    color: var(--text-2);
    font-weight: 400;
    letter-spacing: 0.04em;
  }

  /* ── STACK ── */
  .stack-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 4rem;
  }

  .stack-visual {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-1);
  }

  .code-comment { color: var(--text-2); }
  .code-key { color: var(--closeos-blue); }
  .code-val { color: #f0c070; }
  .code-str { color: #a8e6a3; }
  .code-accent { color: var(--closeos-green); }

  .stack-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .stack-feature {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
  }

  .stack-feature-icon {
    width: 40px; height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
  }

  .stack-feature-text h4 {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-0);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
  }

  .stack-feature-text p {
    font-size: 13px;
    color: var(--text-1);
    line-height: 1.6;
    font-weight: 300;
  }

  /* ── TESTIMONIALS ── */
  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
  }

  .testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
  }

  .testimonial-stars {
    color: var(--accent);
    font-size: 14px;
    margin-bottom: 1rem;
    letter-spacing: 2px;
  }

  .testimonial-card p {
    font-size: 14px;
    color: var(--text-1);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 1.5rem;
    font-style: italic;
  }

  .testimonial-author {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .author-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    flex-shrink: 0;
  }

  .author-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-0);
  }

  .author-role {
    font-size: 12px;
    color: var(--text-2);
  }

  /* ── CTA BANNER ── */
  .cta-banner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 5rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin: 0 2rem;
  }

  .cta-banner::before {
    content: '';
    position: absolute;
    top: -100px; left: 50%;
    transform: translateX(-50%);
    width: 500px; height: 300px;
    background: radial-gradient(ellipse, rgba(200,55,45,0.15) 0%, transparent 70%);
    pointer-events: none;
  }

  .cta-banner h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--text-0);
    margin-bottom: 1rem;
    position: relative;
  }

  .cta-banner p {
    font-size: 1.05rem;
    color: var(--text-1);
    margin-bottom: 2.5rem;
    font-weight: 300;
    position: relative;
  }

  .cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
  }

  /* ── FOOTER ── */
  footer {
    background: var(--bg-1);
    border-top: 1px solid var(--border);
    padding: 4rem 3rem 2rem;
    margin-top: 6rem;
  }

  .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
  }

  .footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border);
  }

  .footer-brand p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.7;
    margin-top: 1rem;
    max-width: 32ch;
    font-weight: 300;
  }

  .footer-col h5 {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-2);
    margin-bottom: 1rem;
  }

  .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

  .footer-col a {
    font-size: 14px;
    color: var(--text-1);
    text-decoration: none;
    transition: color 0.2s;
    font-weight: 300;
  }

  .footer-col a:hover { color: var(--text-0); }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2rem;
    font-size: 12px;
    color: var(--text-2);
  }

  .footer-legal {
    display: flex;
    gap: 2rem;
  }

  .footer-legal a {
    color: var(--text-2);
    text-decoration: none;
    transition: color 0.2s;
  }

  .footer-legal a:hover { color: var(--text-1); }

  /* ── DIVIDER ── */
  .full-width-section {
    width: 100%;
    padding: 7rem 0;
  }

  .full-width-section .section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
  }