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

    :root {
      --canvas:        #FAF6F0;
      --surface:       #FFFFFF;
      --sunken:        #F2EBE0;
      --ink1:          #1F1F1F;
      --ink2:          #5C5C5C;
      --ink3:          #8A8A8A;
      --accent:        #B86A3A;
      --accent-hover:  #9E5529;
      --accent-tint:   #FAF3EC;
      --border-subtle: #EBE3D6;
      --border-default:#D9CFC1;
      --display:       'Inter Tight', 'Inter', system-ui, sans-serif;
      --ui:            'Inter Tight', 'Inter', system-ui, sans-serif;
      --shadow-rest:   0 1px 2px rgba(31,31,31,0.04), 0 1px 1px rgba(31,31,31,0.06);
      --shadow-hover:  0 4px 12px rgba(31,31,31,0.08), 0 2px 4px rgba(31,31,31,0.06);
      --shadow-card:   0 1px 3px rgba(31,31,31,0.06), 0 2px 8px rgba(31,31,31,0.04);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: var(--ui);
      background: var(--canvas);
      color: var(--ink1);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* ── Nav ── */
    nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(250, 246, 240, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
    }

    .nav-inner {
      max-width: 1080px;
      margin: 0 auto;
      padding: 0 24px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

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

    .logo-mark {
      width: 30px;
      height: 30px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--accent) 0%, #d4865a 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-family: var(--display);
      font-weight: 500;
      font-size: 15px;
      letter-spacing: -0.5px;
      flex-shrink: 0;
    }

    .logo-text {
      font-family: var(--ui);
      font-weight: 600;
      font-size: 16px;
      color: var(--ink1);
      letter-spacing: -0.3px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--ink2);
      text-decoration: none;
      letter-spacing: -0.1px;
      transition: color 0.15s;
    }

    .nav-links a:hover { color: var(--ink1); }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 18px;
      border-radius: 8px;
      font-family: var(--ui);
      font-size: 14px;
      font-weight: 500;
      letter-spacing: -0.1px;
      text-decoration: none;
      cursor: pointer;
      transition: background 0.15s, color 0.15s, box-shadow 0.15s;
      border: none;
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
      box-shadow: var(--shadow-rest);
    }

    .btn-primary:hover {
      background: var(--accent-hover);
      box-shadow: var(--shadow-hover);
    }

    .btn-outline {
      background: var(--surface);
      color: var(--ink1);
      border: 1px solid var(--border-default);
      box-shadow: var(--shadow-rest);
    }

    .btn-outline:hover {
      background: var(--sunken);
      box-shadow: var(--shadow-hover);
    }

    /* ── Hero ── */
    .hero-wrap { position: relative; overflow: hidden; }
    .hero {
      max-width: 1080px;
      margin: 0 auto;
      padding: 96px 24px 80px;
      text-align: center;
      position: relative;
      z-index: 1;
    }

    /* ── Altitude-contour backdrop (the thesis, drawn) ── */
    .contours {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 0;
    }
    .contours svg { width: 100%; height: 100%; display: block; }
    .contour-drift-1 { animation: drift 48s ease-in-out infinite alternate; }
    .contour-drift-2 { animation: drift 64s ease-in-out infinite alternate-reverse; }
    .contour-drift-3 { animation: drift 80s ease-in-out infinite alternate; }
    @keyframes drift {
      from { transform: translateX(-18px); }
      to   { transform: translateX(18px); }
    }
    .tele-dot { animation: tele-pulse 4s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
    .tele-dot.d2 { animation-delay: 1.3s; }
    .tele-dot.d3 { animation-delay: 2.1s; }
    .tele-dot.d4 { animation-delay: 0.7s; }
    .tele-dot.d5 { animation-delay: 2.8s; }
    .tele-dot.d6 { animation-delay: 3.4s; }
    @keyframes tele-pulse {
      0%, 100% { opacity: 0.25; transform: scale(1); }
      50%      { opacity: 0.9;  transform: scale(1.45); }
    }
    @media (prefers-reduced-motion: reduce) {
      .contour-drift-1, .contour-drift-2, .contour-drift-3, .tele-dot { animation: none; }
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      background: var(--accent-tint);
      border: 1px solid var(--border-default);
      border-radius: 999px;
      padding: 5px 14px;
      font-size: 12.5px;
      font-weight: 500;
      color: var(--accent);
      letter-spacing: 0.2px;
      margin-bottom: 28px;
    }

    .hero-eyebrow-dot {
      width: 6px;
      height: 6px;
      border-radius: 3px;
      background: var(--accent);
    }

    h1 {
      font-family: var(--display);
      font-weight: 700;
      font-size: clamp(32px, 4.5vw, 52px);
      line-height: 1.14;
      letter-spacing: -1.5px;
      color: var(--ink1);
      max-width: 760px;
      margin: 0 auto 24px;
    }

    h1 em {
      font-style: normal;
      color: var(--accent);
    }

    .hero-sub {
      font-size: 17px;
      color: var(--ink2);
      max-width: 540px;
      margin: 0 auto 40px;
      line-height: 1.65;
      font-weight: 400;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    /* ── Section shared ── */
    section {
      max-width: 1080px;
      margin: 0 auto;
      padding: 80px 24px;
    }

    .section-divider {
      max-width: 1080px;
      margin: 0 auto;
      padding: 0 24px;
      border: none;
      border-top: 1px solid var(--border-subtle);
    }

    .section-label {
      font-size: 11.5px;
      font-weight: 600;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 14px;
    }

    h2 {
      font-family: var(--display);
      font-weight: 700;
      font-size: clamp(24px, 3vw, 34px);
      letter-spacing: -1px;
      line-height: 1.2;
      color: var(--ink1);
      margin-bottom: 16px;
    }

    h2 em {
      font-style: normal;
      color: var(--accent);
    }

    .section-intro {
      font-size: 16px;
      color: var(--ink2);
      max-width: 520px;
      line-height: 1.65;
    }

    /* ── Pillars ── */
    .pillars-header {
      max-width: 600px;
      margin-bottom: 52px;
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    .pillar-card {
      background: var(--surface);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      padding: 28px;
      box-shadow: var(--shadow-card);
      transition: box-shadow 0.2s;
    }

    .pillar-card:hover { box-shadow: var(--shadow-hover); }

    .pillar-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--sunken);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      font-size: 18px;
    }

    .pillar-card h3 {
      font-family: var(--display);
      font-weight: 600;
      font-size: 16px;
      letter-spacing: -0.3px;
      color: var(--ink1);
      margin-bottom: 10px;
    }

    .pillar-card p {
      font-size: 14.5px;
      color: var(--ink2);
      line-height: 1.6;
    }

    /* ── OP1 Feature ── */
    .feature-section {
      background: var(--surface);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .feature-inner {
      max-width: 1080px;
      margin: 0 auto;
      padding: 80px 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .feature-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--sunken);
      border: 1px solid var(--border-default);
      border-radius: 999px;
      padding: 4px 12px;
      font-size: 12px;
      font-weight: 600;
      color: var(--ink2);
      letter-spacing: 0.3px;
      text-transform: uppercase;
      margin-bottom: 20px;
    }

    .feature-inner h2 {
      margin-bottom: 20px;
    }

    .feature-inner p {
      font-size: 15.5px;
      color: var(--ink2);
      line-height: 1.68;
      margin-bottom: 16px;
    }

    .feature-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 32px;
      flex-wrap: wrap;
    }

    .feature-visual {
      background: linear-gradient(135deg, #1E2B3C 0%, #0f1a2b 100%);
      border-radius: 16px;
      padding: 32px;
      box-shadow: 0 8px 32px rgba(31,31,31,0.14), 0 2px 8px rgba(31,31,31,0.08);
      min-height: 320px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .visual-bar {
      background: rgba(255,255,255,0.07);
      border-radius: 8px;
      padding: 14px 16px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .visual-dot {
      width: 8px;
      height: 8px;
      border-radius: 4px;
      flex-shrink: 0;
    }

    .visual-dot.green  { background: #4ade80; box-shadow: 0 0 6px rgba(74,222,128,0.6); }
    .visual-dot.yellow { background: #facc15; box-shadow: 0 0 6px rgba(250,204,21,0.6); }
    .visual-dot.red    { background: #f87171; box-shadow: 0 0 6px rgba(248,113,113,0.6); }

    .visual-label {
      font-family: var(--ui);
      font-size: 13px;
      color: rgba(255,255,255,0.75);
      font-weight: 500;
      flex: 1;
    }

    .visual-tag {
      font-size: 11px;
      font-weight: 500;
      padding: 3px 8px;
      border-radius: 999px;
      letter-spacing: 0.2px;
    }

    .visual-tag.ok      { background: rgba(74,222,128,0.15); color: #4ade80; }
    .visual-tag.warn    { background: rgba(250,204,21,0.15); color: #facc15; }
    .visual-tag.crit    { background: rgba(248,113,113,0.15); color: #f87171; }

    .visual-header {
      font-family: var(--ui);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.6px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.3);
      padding: 0 4px;
      margin-bottom: -4px;
    }

    .visual-ai-block {
      background: rgba(184,106,58,0.12);
      border: 1px solid rgba(184,106,58,0.25);
      border-radius: 8px;
      padding: 14px 16px;
      margin-top: 4px;
    }

    .visual-ai-label {
      font-size: 11px;
      font-weight: 600;
      color: #d4865a;
      letter-spacing: 0.3px;
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .visual-ai-text {
      font-size: 12.5px;
      color: rgba(255,255,255,0.65);
      line-height: 1.5;
    }

    /* ── About ── */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: start;
    }

    .about-grid p {
      font-size: 15.5px;
      color: var(--ink2);
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .about-grid p:last-child { margin-bottom: 0; }

    .about-stat-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .about-stat {
      background: var(--surface);
      border: 1px solid var(--border-subtle);
      border-radius: 12px;
      padding: 22px 20px;
      box-shadow: var(--shadow-card);
    }

    .about-stat-num {
      font-family: var(--display);
      font-size: 30px;
      font-weight: 700;
      letter-spacing: -1px;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 6px;
    }

    .about-stat-label {
      font-size: 13px;
      color: var(--ink2);
      line-height: 1.4;
    }

    /* ── Contact ── */
    .contact-section {
      background: var(--ink1);
    }

    .contact-inner {
      max-width: 1080px;
      margin: 0 auto;
      padding: 80px 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .contact-inner h2 {
      color: #fff;
      margin-bottom: 16px;
    }

    .contact-inner h2 em {
      color: #d4865a;
    }

    .contact-inner p {
      font-size: 15.5px;
      color: rgba(255,255,255,0.55);
      line-height: 1.65;
    }

    .contact-card {
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 16px;
      padding: 36px;
    }

    .contact-card h3 {
      font-family: var(--display);
      font-weight: 600;
      font-size: 17px;
      letter-spacing: -0.3px;
      color: #fff;
      margin-bottom: 20px;
    }

    .contact-row {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .contact-row:last-child { border-bottom: none; }

    .contact-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: rgba(255,255,255,0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      flex-shrink: 0;
    }

    .contact-info-label {
      font-size: 11.5px;
      font-weight: 600;
      letter-spacing: 0.4px;
      text-transform: uppercase;
      color: rgba(255,255,255,0.35);
      margin-bottom: 2px;
    }

    .contact-info-value {
      font-size: 14.5px;
      color: rgba(255,255,255,0.85);
      font-weight: 500;
    }

    .contact-info-value a {
      color: #d4865a;
      text-decoration: none;
    }

    .contact-info-value a:hover { text-decoration: underline; }

    /* ── Footer ── */
    footer {
      background: var(--ink1);
      border-top: 1px solid rgba(255,255,255,0.07);
    }

    .footer-inner {
      max-width: 1080px;
      margin: 0 auto;
      padding: 28px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-copy {
      font-size: 13px;
      color: rgba(255,255,255,0.3);
    }

    .footer-links {
      display: flex;
      gap: 20px;
    }

    .footer-links a {
      font-size: 13px;
      color: rgba(255,255,255,0.35);
      text-decoration: none;
      transition: color 0.15s;
    }

    .footer-links a:hover { color: rgba(255,255,255,0.65); }

    /* ── Product screenshot frames ── */
    .product-shot {
      display: block;
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid var(--border-default);
      box-shadow: 0 8px 32px rgba(31,31,31,0.14), 0 2px 8px rgba(31,31,31,0.08);
      transition: box-shadow 0.2s, transform 0.2s;
      line-height: 0;
      background: var(--surface);
    }
    .product-shot:hover {
      box-shadow: 0 12px 40px rgba(31,31,31,0.18), 0 4px 12px rgba(31,31,31,0.10);
      transform: translateY(-2px);
    }
    .product-shot img { width: 100%; height: auto; display: block; }
    .shot-caption {
      display: block;
      margin-top: 10px;
      font-size: 12px;
      color: var(--ink3);
      line-height: 1.4;
      text-align: center;
    }

    /* ── Product status chip ── */
    .status-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      color: #2E7D4F;
      background: #EDF7F0;
      border: 1px solid #CBE7D5;
      border-radius: 999px;
      padding: 3px 11px;
      margin-left: 10px;
      vertical-align: middle;
      letter-spacing: 0.2px;
    }
    .status-chip::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 3px;
      background: #2E7D4F;
    }

    /* ── Products: alternate rows, tinted band ── */
    .feature-section + .feature-section { border-top: none; }
    .feature-inner.flip > div:first-child { order: 2; }
    .feature-inner.flip > div:last-child { order: 1; }
    .product-domain {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 0.8px;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 10px;
    }
    .more-products {
      max-width: 1080px;
      margin: 0 auto;
      padding: 28px 24px 64px;
      text-align: center;
      font-size: 14px;
      color: var(--ink3);
    }
    .more-products strong { color: var(--ink2); font-weight: 600; }

    /* ── Agentic section ── */
    .agentic-section {
      background: linear-gradient(135deg, #1E2B3C 0%, #0f1a2b 100%);
      position: relative;
      overflow: hidden;
    }
    .constellation {
      position: absolute;
      inset: 0;
      pointer-events: none;
    }
    .constellation svg { width: 100%; height: 100%; display: block; }
    .star-pulse { animation: tele-pulse 5s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
    .star-pulse.s2 { animation-delay: 1.7s; }
    .star-pulse.s3 { animation-delay: 3.2s; }
    @media (prefers-reduced-motion: reduce) { .star-pulse { animation: none; } }
    .agentic-inner {
      max-width: 1080px;
      margin: 0 auto;
      padding: 80px 24px;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 64px;
      align-items: center;
      position: relative;
      z-index: 1;
    }
    .agentic-inner h2 { color: #fff; }
    .agentic-inner h2 em { color: #d4865a; }
    .agentic-inner p {
      font-size: 15.5px;
      color: rgba(255,255,255,0.6);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .agentic-inner .section-label { color: #d4865a; }
    .agentic-flow {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 16px;
      padding: 28px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .agentic-step {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: rgba(255,255,255,0.05);
      border-radius: 10px;
      padding: 14px 16px;
    }
    .agentic-step .n {
      flex-shrink: 0;
      width: 26px;
      height: 26px;
      border-radius: 8px;
      background: rgba(184,106,58,0.25);
      color: #d4865a;
      font-size: 13px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .agentic-step .t { font-size: 13.5px; color: rgba(255,255,255,0.75); line-height: 1.5; }
    .agentic-step .t strong { color: #fff; font-weight: 600; }

    /* ── Responsive ── */
    @media (max-width: 720px) {
      .nav-links { display: none; }
      .feature-inner { grid-template-columns: 1fr; gap: 36px; }
      .feature-inner .feature-visual { order: -1; min-height: 240px; }
      .feature-inner.flip > div:first-child { order: 0; }
      .feature-inner.flip > div:last-child { order: -1; }
      .agentic-inner { grid-template-columns: 1fr; gap: 36px; }
      .about-grid { grid-template-columns: 1fr; gap: 36px; }
      .contact-inner { grid-template-columns: 1fr; gap: 36px; }
      .about-stat-grid { grid-template-columns: 1fr 1fr; }
    }

    /* ════════════════════════════════════════════════════════
       Multi-page additions (v2 — separate pages)
       ════════════════════════════════════════════════════════ */

    /* Active nav item for the current page */
    .nav-links a.active { color: var(--ink1); font-weight: 600; }

    /* ── Hero: split layout + product screenshot fan (Option A) ── */
    .hero {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
      gap: 48px;
      align-items: center;
      text-align: left;
      padding: 88px 24px 88px;
    }
    .hero h1 { margin: 0 0 24px; max-width: none; font-size: clamp(32px, 4vw, 46px); }
    .hero .hero-sub { margin: 0 0 40px; max-width: none; }
    .hero .hero-actions { justify-content: flex-start; }

    .hero-stack { position: relative; height: 360px; perspective: 1200px; }
    .hero-shot {
      position: absolute;
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--border-default);
      box-shadow: 0 24px 48px rgba(31,31,31,0.16), 0 6px 16px rgba(31,31,31,0.10);
      background: var(--surface);
    }
    .hero-shot img { display: block; width: 100%; height: auto; }
    .hero-shot .shot-bar {
      height: 22px;
      background: var(--sunken);
      border-bottom: 1px solid var(--border-subtle);
      display: flex; align-items: center; gap: 5px; padding: 0 10px;
    }
    .hero-shot .shot-bar i { width: 7px; height: 7px; border-radius: 50%; background: var(--border-default); display: block; }
    .hero-shot .shot-tag {
      position: absolute; top: 28px; right: 8px;
      background: rgba(31,31,31,0.78); color: #fff;
      font-size: 10.5px; font-weight: 600; letter-spacing: 0.4px;
      padding: 3px 9px; border-radius: 999px;
      backdrop-filter: blur(4px);
    }
    .shot-1 { width: 84%; top: 2%; left: 0; transform: rotate(-2.5deg); z-index: 1; }
    .shot-2 { width: 78%; bottom: 0; right: 0; transform: rotate(2deg); z-index: 2; }

    /* ── Page header (top of section pages) ── */
    .page-header {
      max-width: 1080px;
      margin: 0 auto;
      padding: 72px 24px 12px;
    }
    .page-header h1 {
      font-family: var(--display);
      font-weight: 700;
      font-size: clamp(28px, 3.4vw, 40px);
      letter-spacing: -1.2px;
      line-height: 1.15;
      color: var(--ink1);
      margin: 8px 0 14px;
      max-width: 720px;
    }
    .page-header h1 em { font-style: normal; color: var(--accent); }
    .page-header p {
      font-size: 16.5px;
      color: var(--ink2);
      max-width: 600px;
      line-height: 1.65;
    }

    /* ── Home CTA strip ── */
    .home-cta {
      max-width: 1080px;
      margin: 0 auto;
      padding: 8px 24px 88px;
      text-align: center;
    }
    .home-cta h2 { margin-bottom: 12px; }
    .home-cta p { font-size: 16px; color: var(--ink2); max-width: 520px; margin: 0 auto 28px; line-height: 1.65; }

    @media (max-width: 900px) {
      .hero { grid-template-columns: 1fr; text-align: center; }
      .hero h1, .hero .hero-sub { margin-left: auto; margin-right: auto; }
      .hero .hero-actions { justify-content: center; }
      .hero-stack { margin: 8px auto 0; max-width: 460px; width: 100%; }
    }