:root {
      --bg: #fafafa;
      --surface: #ffffff;
      --surface-subtle: #f8fafc;
      --border: rgba(0, 0, 0, 0.08);
      --border-subtle: rgba(0, 0, 0, 0.04);
      --border-strong: rgba(0, 0, 0, 0.16);

      --ink: #09090b;
      --ink-secondary: #3f3f46;
      --ink-muted: #71717a;
      --ink-faint: #a1a1aa;

      --amber: #d97706;
      --amber-dark: #b45309;
      --amber-subtle: #fffbeb;
      --amber-border: #fde68a;

      --emerald: #10b981;
      --emerald-subtle: #ecfdf5;
      --emerald-border: #a7f3d0;

      --indigo: #6366f1;
      --indigo-subtle: #eef2ff;
      --indigo-border: #c7d2fe;

      --blue: #2563eb;
      --blue-subtle: #eff6ff;

      --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-full: 9999px;

      --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.03), 0 8px 24px -4px rgba(0, 0, 0, 0.04);
      --card-shadow-hover: 0 4px 8px -2px rgba(0, 0, 0, 0.04), 0 20px 40px -8px rgba(0, 0, 0, 0.09);
      --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      scroll-behavior: smooth;
    }

    body {
      background-color: #fafafa;
      background-image: 
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(245, 158, 11, 0.09), transparent 60%),
        radial-gradient(ellipse 60% 40% at 90% 15%, rgba(99, 102, 241, 0.04), transparent 50%),
        radial-gradient(ellipse 60% 40% at 10% 40%, rgba(16, 185, 129, 0.04), transparent 50%);
      background-attachment: fixed;
      color: var(--ink);
      font-family: var(--font-sans);
      line-height: 1.55;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

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

    button {
      font: inherit;
      background: none;
      border: none;
      cursor: pointer;
    }

    .container {
      width: 100%;
      max-width: 980px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* ── Header ── */
    .site-header {
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 50;
      height: 64px;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 1.25rem;
    }

    .brand-lockup {
      display: flex;
      align-items: center;
      gap: 0.85rem;
    }

    .brand-icon {
      width: 36px;
      height: 36px;
      background: #09090b;
      border-radius: var(--radius-sm);
      display: grid;
      place-items: center;
      flex-shrink: 0;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.2);
      transition: transform var(--transition);
    }

    .brand-icon:hover {
      transform: scale(1.04);
    }

    .brand-icon svg {
      width: 24px;
      height: 24px;
    }

    .brand-meta {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .brand-name {
      font-size: 0.875rem;
      font-weight: 800;
      letter-spacing: 0.05em;
      color: var(--ink);
    }

    .brand-role {
      font-size: 0.75rem;
      color: var(--ink-muted);
      font-weight: 500;
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--ink-secondary);
    }

    .header-nav a {
      position: relative;
      padding: 0.25rem 0;
      transition: color var(--transition);
    }

    .header-nav a:hover {
      color: var(--ink);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .time-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      padding: 0.35rem 0.75rem;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid var(--border);
      border-radius: var(--radius-full);
      font-family: var(--font-mono);
      font-size: 0.6875rem;
      color: var(--ink-secondary);
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    }

    .time-badge .pulse-dot {
      width: 7px;
      height: 7px;
      background: var(--emerald);
      border-radius: 50%;
      animation: pulse-ring 2.4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    }

    @keyframes pulse-ring {
      0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
      50% { box-shadow: 0 0 0 4px rgba(16, 185, 129, 0); }
    }

    .contact-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.45rem 1rem;
      background: var(--ink);
      color: #ffffff;
      border-radius: var(--radius-sm);
      font-size: 0.8125rem;
      font-weight: 600;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.2);
      transition: opacity var(--transition), transform var(--transition);
      white-space: nowrap;
    }

    .contact-btn:hover {
      opacity: 0.92;
    }

    .contact-btn:active {
      transform: scale(0.97);
    }

    /* ── 100VH Hero Stage ── */
    .hero-stage-wrap {
      min-height: calc(100dvh - 64px);
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .hero-stage {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 3.5rem 1.5rem 2.25rem;
    }

    .hero-top-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .studio-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.35rem 0.85rem;
      background: var(--amber-subtle);
      border: 1px solid var(--amber-border);
      color: var(--amber-dark);
      border-radius: var(--radius-full);
      font-size: 0.6875rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      box-shadow: 0 1px 2px rgba(217, 119, 6, 0.08);
    }

    .studio-pill .pill-dot {
      width: 6px;
      height: 6px;
      background: var(--amber);
      border-radius: 50%;
    }

    .founder-badge {
      font-size: 0.75rem;
      font-family: var(--font-mono);
      color: var(--ink-muted);
      font-weight: 500;
    }

    .hero-center {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
      margin: auto 0;
      padding: 1.5rem 0;
    }

    .hero-title {
      font-size: clamp(2.125rem, 4.4vw, 3.375rem);
      font-weight: 800;
      letter-spacing: -0.035em;
      color: var(--ink);
      line-height: 1.12;
      max-width: 880px;
    }

    .hero-accent {
      color: var(--amber-dark);
    }

    .hero-subhead {
      font-size: clamp(1rem, 1.8vw, 1.125rem);
      color: var(--ink-secondary);
      line-height: 1.6;
      max-width: 760px;
    }

    .hero-actions-row {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      flex-wrap: wrap;
      padding-top: 0.5rem;
    }

    .action-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.5rem 1rem;
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--ink-secondary);
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
      transition: all var(--transition);
    }

    .action-pill:hover {
      background: #f4f4f5;
      color: var(--ink);
      border-color: rgba(0, 0, 0, 0.16);
      transform: translateY(-1px);
    }

    .action-pill:active {
      transform: scale(0.97);
    }

    .action-pill.primary {
      background: var(--ink);
      border-color: var(--ink);
      color: #ffffff;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }

    .action-pill.primary:hover {
      background: #18181b;
      opacity: 0.94;
    }

    .hero-bottom-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.25rem;
      flex-wrap: wrap;
      padding-top: 1.25rem;
      border-top: 1px solid var(--border-subtle);
    }

    .hero-chips-wrap {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      flex-wrap: wrap;
    }

    .hero-chip {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      padding: 0.35rem 0.75rem;
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid var(--border);
      border-radius: var(--radius-full);
      font-family: var(--font-mono);
      font-size: 0.6875rem;
      color: var(--ink-secondary);
      font-weight: 500;
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
    }

    .hero-chip .chip-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
    }
    .hero-chip .chip-dot.indigo { background: var(--indigo); }
    .hero-chip .chip-dot.amber { background: var(--amber); }
    .hero-chip .chip-dot.emerald { background: var(--emerald); }

    .scroll-cue {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      font-family: var(--font-mono);
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--ink-muted);
      transition: color var(--transition);
    }

    .scroll-cue:hover {
      color: var(--ink);
    }

    .scroll-cue svg {
      animation: bounce-subtle 2s infinite ease-in-out;
    }

    @keyframes bounce-subtle {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(4px); }
    }

    /* ── Content Sections ── */
    .content-main {
      padding: 4rem 1.5rem 5rem;
      display: flex;
      flex-direction: column;
      gap: 4rem;
    }

    .section-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      margin-bottom: 1.5rem;
      padding: 0 0.25rem;
    }

    .section-title {
      font-size: 0.875rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--ink);
    }

    .section-meta {
      font-size: 0.75rem;
      font-family: var(--font-mono);
      color: var(--ink-muted);
      font-weight: 500;
    }

    /* ── Flagship Products Grid ── */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }

    .product-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 2rem 1.85rem;
      box-shadow: var(--card-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.8);
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
      transition: all var(--transition);
      position: relative;
    }

    .product-card:hover {
      border-color: var(--border-strong);
      box-shadow: var(--card-shadow-hover);
      transform: translateY(-2px);
    }

    .product-top-bar {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 0.75rem;
    }

    .product-badge-group {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      flex-wrap: wrap;
    }

    .product-name {
      font-size: 1.375rem;
      font-weight: 800;
      letter-spacing: -0.025em;
      color: var(--ink);
    }

    .product-pill {
      font-size: 0.6875rem;
      font-weight: 700;
      padding: 0.2rem 0.55rem;
      border-radius: var(--radius-full);
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .product-pill.pacto-pill {
      background: var(--indigo-subtle);
      border: 1px solid var(--indigo-border);
      color: var(--indigo);
    }

    .product-pill.fuel-pill {
      background: var(--amber-subtle);
      border: 1px solid var(--amber-border);
      color: var(--amber-dark);
    }

    .product-link-btn {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-family: var(--font-mono);
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--ink);
      padding: 0.35rem 0.75rem;
      border-radius: var(--radius-sm);
      background: #ffffff;
      border: 1px solid var(--border);
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
      transition: all var(--transition);
    }

    .product-link-btn:hover {
      background: var(--ink);
      color: #ffffff;
      border-color: var(--ink);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
      transform: translateY(-1px);
    }

    .product-link-btn .arrow {
      transition: transform var(--transition);
    }

    .product-link-btn:hover .arrow {
      transform: translate(2px, -2px);
    }

    .product-summary {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--ink-secondary);
      line-height: 1.5;
    }

    .product-features-box {
      display: flex;
      flex-direction: column;
      gap: 0.55rem;
      padding: 1rem 1.15rem;
      background: #fbfbfb;
      border-radius: var(--radius-md);
      font-size: 0.8125rem;
      color: var(--ink-secondary);
      border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .feature-line {
      display: flex;
      align-items: baseline;
      gap: 0.5rem;
      line-height: 1.5;
    }

    .feature-line .bullet {
      color: var(--amber);
      font-weight: 800;
      font-size: 0.9375rem;
      flex-shrink: 0;
    }

    .feature-line strong {
      color: var(--ink);
      font-weight: 700;
    }

    .tech-pill-container {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4rem;
      margin-top: auto;
    }

    .tech-tag {
      font-family: var(--font-mono);
      font-size: 0.6875rem;
      font-weight: 500;
      background: #ffffff;
      color: var(--ink-secondary);
      padding: 0.25rem 0.55rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
      transition: all var(--transition);
    }

    .tech-tag:hover {
      border-color: rgba(0, 0, 0, 0.18);
      color: var(--ink);
    }

    /* ── Enterprise Track Record ── */
    .enterprise-stack {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .enterprise-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 1.85rem 2rem;
      box-shadow: var(--card-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.8);
      display: flex;
      flex-direction: column;
      gap: 1.15rem;
      transition: all var(--transition);
    }

    .enterprise-card:hover {
      border-color: var(--border-strong);
      box-shadow: var(--card-shadow-hover);
    }

    .enterprise-header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .role-title {
      font-size: 1.125rem;
      font-weight: 800;
      letter-spacing: -0.015em;
      color: var(--ink);
    }

    .company-title {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--amber-dark);
    }

    .tenure-tag {
      font-family: var(--font-mono);
      font-size: 0.6875rem;
      font-weight: 600;
      color: var(--ink-secondary);
      background: var(--surface-subtle);
      border: 1px solid var(--border);
      padding: 0.3rem 0.7rem;
      border-radius: var(--radius-full);
      white-space: nowrap;
    }

    .enterprise-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .enterprise-points li {
      font-size: 0.875rem;
      color: var(--ink-secondary);
      line-height: 1.55;
      padding-left: 1.35rem;
      position: relative;
    }

    .enterprise-points li::before {
      content: "•";
      position: absolute;
      left: 0.35rem;
      color: var(--amber);
      font-weight: bold;
    }

    .enterprise-points strong {
      color: var(--ink);
      font-weight: 700;
    }

    /* ── Studio Principles ── */
    .principles-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.25rem;
    }

    .principle-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 1.5rem 1.35rem;
      box-shadow: var(--card-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.8);
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
      transition: all var(--transition);
    }

    .principle-card:hover {
      border-color: var(--border-strong);
      transform: translateY(-2px);
      box-shadow: var(--card-shadow-hover);
    }

    .principle-num {
      font-family: var(--font-mono);
      font-size: 0.6875rem;
      font-weight: 700;
      color: var(--amber);
      letter-spacing: 0.06em;
    }

    .principle-name {
      font-size: 0.9375rem;
      font-weight: 800;
      color: var(--ink);
    }

    .principle-desc {
      font-size: 0.8125rem;
      color: var(--ink-secondary);
      line-height: 1.55;
    }

    /* ── Footer ── */
    .site-footer {
      background: var(--surface);
      border-top: 1px solid var(--border);
      padding: 2.25rem 0;
      margin-top: auto;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem;
      font-size: 0.8125rem;
      color: var(--ink-muted);
      flex-wrap: wrap;
    }

    .footer-brand-wrap {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 600;
      color: var(--ink);
    }

    /* ── Toast ── */
    .toast {
      position: fixed;
      bottom: 1.5rem;
      right: 1.5rem;
      background: #09090b;
      color: #ffffff;
      padding: 0.75rem 1.25rem;
      border-radius: var(--radius-sm);
      font-size: 0.8125rem;
      font-weight: 600;
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
      opacity: 0;
      transform: translateY(10px) scale(0.97);
      transition: opacity 180ms cubic-bezier(0.16, 1, 0.3, 1), transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
      pointer-events: none;
      z-index: 1000;
    }

    .toast.show {
      opacity: 1;
      transform: translateY(0) scale(1);
    }

    /* ── Responsive ── */
    @media (max-width: 820px) {
      .hero-stage {
        padding: 2rem 1.25rem 1.5rem;
      }
      .products-grid {
        grid-template-columns: 1fr;
      }
      .principles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .header-nav {
        display: none;
      }
      .content-main {
        padding: 3rem 1.25rem 4rem;
        gap: 3rem;
      }
    }

    @media (max-width: 640px) {
      .hero-stage-wrap {
        min-height: calc(100dvh - 58px);
      }
      .site-header {
        height: 58px;
      }
      .hero-stage {
        padding: 1.25rem 1rem 1.25rem;
      }
      .hero-center {
        gap: 1.15rem;
        padding: 0.75rem 0;
      }
      .hero-title {
        font-size: clamp(1.75rem, 6.8vw, 2.125rem);
        line-height: 1.15;
      }
      .hero-subhead {
        font-size: 0.9375rem;
        line-height: 1.5;
      }
      .hero-actions-row {
        gap: 0.5rem;
      }
      .action-pill {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
      }
      .principles-grid {
        grid-template-columns: 1fr;
      }
      .header-actions .time-badge {
        display: none;
      }
      .hero-chips-wrap {
        gap: 0.4rem;
      }
      .hero-chip {
        font-size: 0.625rem;
        padding: 0.25rem 0.55rem;
      }
    }