@font-face {
      font-family: 'Neuropolitical';
      src: url('fonts/neuropolitical.otf') format('opentype');
      font-weight: normal;
      font-style: normal;
    }

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

    :root {
      --heading-font: 'Neuropolitical', 'Space Grotesk', sans-serif;
      --body-font: 'Space Grotesk', sans-serif;
      --black: #0a0a0a;
      --black-mid: #111111;
      --black-card: #161616;
      --orange: #FF4500;
      --orange-dim: rgba(255,69,0,0.12);
      --white: #f5f4f2;
      --muted: #888880;
      --border: rgba(255,255,255,0.07);
      --sidebar: 32px;
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: var(--body-font);
      background: var(--black);
      color: var(--white);
      line-height: 1.6;
      overflow-x: hidden;
    }

    h1, h2, h3 { font-family: var(--heading-font); font-weight: normal; }

    h2 {
      font-size: clamp(28px, 4vw, 48px);
      line-height: 1.15;
      letter-spacing: 0.03em;
      margin-bottom: 20px;
    }

    /* ── SIDEBAR BAR ── */
    .sidebar-bar {
      position: fixed;
      left: 0; top: 0; bottom: 0;
      width: var(--sidebar);
      background: var(--orange);
      z-index: 200;
    }

    /* ── NAV ── */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 48px 0 calc(var(--sidebar) + 32px);
      height: 64px;
      background: rgba(10,10,10,0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .nav-logo img {
      height: 28px;
      display: block;
    }
    .nav-links {
      display: flex;
      gap: 36px;
      list-style: none;
    }
    .nav-links a {
      color: var(--muted);
      text-decoration: none;
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--white); }
    .nav-links a.active { color: var(--orange); }
    .nav-cta {
      background: var(--orange);
      color: #fff !important;
      padding: 8px 20px;
      border-radius: 4px;
      font-weight: 600 !important;
      letter-spacing: 0.04em !important;
      transition: opacity 0.2s !important;
    }
    .nav-cta:hover { opacity: 0.85; color: #fff !important; }

    /* ── SECTIONS ── */
    section { padding: 100px 48px 100px calc(var(--sidebar) + 48px); }
    .section-inner { max-width: 1100px; margin: 0 auto; }

    .section-label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--orange);
      margin-bottom: 16px;
    }
    .section-sub {
      font-size: 17px;
      color: var(--muted);
      max-width: 560px;
      line-height: 1.7;
    }

    /* ── HERO ── */
    #hero {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding-top: 100px;
      padding-bottom: 80px;
      padding-left: calc(var(--sidebar) + 48px);
      padding-right: 48px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(to right, rgba(10,10,10,1) 0%, rgba(10,10,10,0.85) 40%, rgba(10,10,10,0.25) 70%), url('images/ai-persona.webp') 65% center / cover no-repeat;
    }
    .hero-inner {
      max-width: 1100px;
      margin: 0 auto;
      width: 100%;
    }
    .hero-eyebrow {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--orange);
      margin-bottom: 28px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .hero-eyebrow::before {
      content: '';
      display: block;
      width: 32px;
      height: 2px;
      background: var(--orange);
    }
    .hero-logo {
      margin-bottom: 40px;
    }
    .hero-logo img {
      height: 56px;
    }
    .hero-tagline {
      font-family: var(--heading-font);
      font-size: clamp(36px, 6vw, 76px);
      font-weight: normal;
      line-height: 1.08;
      letter-spacing: 0.03em;
      margin-bottom: 32px;
    }
    .hero-tagline em {
      font-style: normal;
      color: var(--orange);
    }
    .hero-desc {
      font-size: 18px;
      color: var(--muted);
      max-width: 580px;
      line-height: 1.75;
      margin-bottom: 48px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--orange);
      color: #fff;
      padding: 14px 32px;
      border: none;
      border-radius: 4px;
      font-family: inherit;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 0.04em;
      cursor: pointer;
      text-decoration: none;
      display: inline-block;
      transition: opacity 0.2s;
    }
    .btn-primary:hover { opacity: 0.85; }
    .btn-outline {
      background: transparent;
      color: var(--white);
      padding: 14px 32px;
      border: 1px solid var(--border);
      border-radius: 4px;
      font-family: inherit;
      font-size: 14px;
      font-weight: 500;
      letter-spacing: 0.04em;
      cursor: pointer;
      text-decoration: none;
      display: inline-block;
      transition: border-color 0.2s;
    }
    .btn-outline:hover { border-color: rgba(255,255,255,0.3); }
    .hero-stats {
      display: flex;
      gap: 48px;
      margin-top: 72px;
      padding-top: 48px;
      border-top: 1px solid var(--border);
      flex-wrap: wrap;
    }
    .stat-num {
      font-family: var(--heading-font);
      font-size: 32px;
      font-weight: normal;
      letter-spacing: 0.02em;
      color: var(--white);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 12px;
      color: var(--muted);
      letter-spacing: 0.06em;
      text-transform: uppercase;
      margin-top: 4px;
    }
    .hero-bg-text {
      position: absolute;
      right: -20px;
      bottom: 60px;
      font-family: var(--heading-font);
      font-size: clamp(80px, 14vw, 180px);
      font-weight: normal;
      letter-spacing: 0.05em;
      color: rgba(255,255,255,0.025);
      pointer-events: none;
      user-select: none;
      line-height: 1;
    }

    /* ── ABOUT ── */
    #about {
      background: var(--black-mid);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .about-grid {
      max-width: 1100px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: start;
    }
    .about-text h2 { margin-bottom: 24px; }
    .about-text p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .about-text p:last-of-type { margin-bottom: 0; }
    .about-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 28px;
    }
    .pill {
      background: var(--orange-dim);
      border: 1px solid rgba(255,69,0,0.25);
      color: var(--orange);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      padding: 5px 12px;
      border-radius: 3px;
    }
    .about-timeline {
      display: flex;
      flex-direction: column;
    }
    .timeline-item {
      display: flex;
      gap: 24px;
      padding: 20px 0;
      border-bottom: 1px solid var(--border);
    }
    .timeline-item:last-child { border-bottom: none; }
    .timeline-year {
      font-family: var(--heading-font);
      font-size: 12px;
      font-weight: normal;
      color: var(--orange);
      letter-spacing: 0.06em;
      min-width: 48px;
      padding-top: 3px;
    }
    .timeline-content strong {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 2px;
    }
    .timeline-content span {
      font-size: 13px;
      color: var(--muted);
    }

    /* ── SERVICES ── */
    #services { background: var(--black); }
    .services-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 56px;
      flex-wrap: wrap;
      gap: 24px;
    }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2px;
    }
    .service-card {
      background: var(--black-card);
      padding: 40px;
      border: 1px solid var(--border);
      transition: border-color 0.25s;
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: var(--orange);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.3s;
    }
    .service-card:hover { border-color: rgba(255,255,255,0.15); }
    .service-card:hover::before { transform: scaleX(1); }
    .service-num {
      font-family: var(--heading-font);
      font-size: 11px;
      font-weight: normal;
      letter-spacing: 0.15em;
      color: var(--orange);
      margin-bottom: 28px;
      opacity: 0.7;
    }
    .service-icon {
      width: 40px;
      height: 40px;
      margin-bottom: 20px;
    }
    .service-card h3 {
      font-family: var(--heading-font);
      font-size: 16px;
      font-weight: normal;
      margin-bottom: 12px;
      letter-spacing: 0.04em;
    }
    .service-card p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.75;
    }
    .service-list {
      list-style: none;
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .service-list li {
      font-size: 13px;
      color: var(--muted);
      padding-left: 14px;
      position: relative;
    }
    .service-list li::before {
      content: '→';
      position: absolute;
      left: 0;
      color: var(--orange);
      font-size: 11px;
    }

    /* ── PORTFOLIO ── */
    #portfolio { background: var(--black-mid); border-top: 1px solid var(--border); }
    .portfolio-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 48px;
      flex-wrap: wrap;
      gap: 24px;
    }
    .portfolio-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .portfolio-card {
      background: var(--black-card);
      border: 1px solid var(--border);
      border-radius: 6px;
      overflow: hidden;
      transition: border-color 0.25s, transform 0.25s;
    }
    .portfolio-card:hover {
      border-color: rgba(255,69,0,0.3);
      transform: translateY(-3px);
    }
    .portfolio-thumb {
      aspect-ratio: 16/9;
      background: var(--black);
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }
    .portfolio-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }
    .portfolio-card:hover .portfolio-thumb img {
      transform: scale(1.05);
    }
    .portfolio-thumb-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.2) 60%, rgba(10,10,10,0.1) 100%);
      pointer-events: none;
    }
    .portfolio-info { padding: 20px 24px; }
    .portfolio-tag {
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--orange);
      margin-bottom: 8px;
    }
    .portfolio-info h3 {
      font-family: var(--heading-font);
      font-size: 15px;
      font-weight: normal;
      letter-spacing: 0.04em;
      margin-bottom: 6px;
    }
    .portfolio-info p {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.6;
    }
    .portfolio-year {
      font-size: 11px;
      color: var(--muted);
      opacity: 0.5;
      margin-top: 10px;
    }

    /* ── CONTACT ── */
    #contact { background: var(--black); border-top: 1px solid var(--border); }
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.4fr;
      gap: 80px;
      align-items: start;
    }
    .contact-left h2 { margin-bottom: 16px; }
    .contact-left p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.75;
      margin-bottom: 40px;
    }
    .contact-detail {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .contact-detail-item {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .contact-detail-item span:first-child {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--orange);
    }
    .contact-detail-item a,
    .contact-detail-item span:last-child {
      font-size: 15px;
      color: var(--white);
      text-decoration: none;
    }
    .contact-detail-item a:hover { color: var(--orange); }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--muted);
    }
    .form-group input,
    .form-group textarea,
    .form-group select {
      background: var(--black-card);
      border: 1px solid var(--border);
      color: var(--white);
      font-family: inherit;
      font-size: 14px;
      padding: 12px 16px;
      border-radius: 4px;
      outline: none;
      transition: border-color 0.2s;
      width: 100%;
    }
    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus { border-color: var(--orange); }
    .form-group textarea { resize: vertical; min-height: 120px; }
    .form-group select option { background: var(--black-card); }
    .form-submit { margin-top: 8px; }
    .form-submit .btn-primary { width: 100%; padding: 16px; font-size: 15px; }
    .form-success {
      display: none;
      background: var(--orange-dim);
      border: 1px solid rgba(255,69,0,0.3);
      color: var(--white);
      padding: 16px 20px;
      border-radius: 4px;
      font-size: 14px;
      text-align: center;
    }

    /* ── FOOTER ── */
    footer {
      background: var(--black);
      border-top: 1px solid var(--border);
      padding: 32px 48px 32px calc(var(--sidebar) + 48px);
    }
    .footer-inner {
      max-width: 1100px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    .footer-inner img { height: 22px; opacity: 0.6; }
    .footer-copy { font-size: 12px; color: var(--muted); opacity: 0.6; }
    .footer-links {
      display: flex;
      gap: 24px;
      list-style: none;
    }
    .footer-links a {
      font-size: 12px;
      color: var(--muted);
      text-decoration: none;
      opacity: 0.6;
      transition: opacity 0.2s;
    }
    .footer-links a:hover { opacity: 1; }

    /* ── SCROLLBAR ── */
    ::-webkit-scrollbar { width: 4px; }
    ::-webkit-scrollbar-track { background: var(--black); }
    ::-webkit-scrollbar-thumb { background: var(--orange); border-radius: 2px; }

    /* ── RESPONSIVE ── */
    @media (max-width: 900px) {
      :root { --sidebar: 12px; }
      nav { padding: 0 20px 0 calc(var(--sidebar) + 16px); }
      .nav-links { display: none; }
      section { padding: 64px 24px 64px calc(var(--sidebar) + 24px); }
      #hero {
        padding: 96px 24px 64px calc(var(--sidebar) + 24px);
        background: linear-gradient(to bottom, rgba(10,10,10,0.7) 0%, rgba(10,10,10,0.92) 60%), url('images/ai-persona.webp') 65% 20% / cover no-repeat;
      }
      #about { padding: 64px 24px 64px calc(var(--sidebar) + 24px); }
      footer { padding: 24px 20px 24px calc(var(--sidebar) + 20px); }
      .about-grid { grid-template-columns: 1fr; gap: 40px; }
      .services-grid { grid-template-columns: 1fr; }
      .services-header { flex-direction: column; align-items: flex-start; }
      .portfolio-grid { grid-template-columns: 1fr 1fr; }
      .portfolio-header { flex-direction: column; align-items: flex-start; }
      .contact-grid { grid-template-columns: 1fr; gap: 40px; }
      .hero-bg-text { display: none; }
      .hero-logo img { height: 40px; }
      .hero-stats { gap: 28px; margin-top: 48px; padding-top: 32px; }
      .stat-num { font-size: 24px; }
    }
    @media (max-width: 600px) {
      :root { --sidebar: 8px; }
      .portfolio-grid { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .hero-stats { gap: 20px; flex-direction: column; }
      .about-pills { gap: 6px; }
      .services-grid { gap: 1px; }
      .service-card { padding: 28px 24px; }
      h2 { font-size: clamp(24px, 7vw, 36px); }
      .hero-tagline { font-size: clamp(30px, 9vw, 48px); }
      .hero-desc { font-size: 15px; }
      .btn-primary, .btn-outline { padding: 12px 24px; font-size: 13px; }
      .contact-left p { font-size: 14px; }
      .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
    }