:root {
    --bg: #ffffff;
    --ink: #0a0a0b;
    --ink-2: #2b2b2e;
    --muted: #6b6b70;
    --line: #e8e8e8;
    --line-2: #f1f1f1;
    --accent: oklch(0.65 0.18 45);   /* warm amber/orange */
    --accent-ink: oklch(0.42 0.16 45);
    --accent-tint: oklch(0.97 0.04 60);
    --max: 1360px;
    --pad: clamp(20px, 4vw, 56px);
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-feature-settings: 'ss01', 'cv11';
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    line-height: 1.45;
  }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }

  .wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--pad); }

  /* ---------- Nav ---------- */
  .nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,0.82);
    backdrop-filter: saturate(140%) blur(10px);
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    border-bottom: 1px solid var(--line);
  }
  .nav-row {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
  }
  .brand {
    display: flex; align-items: center; gap: 10px;
    font-weight: 700; letter-spacing: 0.02em;
    font-size: 15px;
  }
  .brand-mark {
    width: 22px; height: 22px;
    background: var(--accent);
    border-radius: 2px;
    position: relative;
  }
  .brand-mark::after {
    content: ""; position: absolute; inset: 6px;
    background: #fff; border-radius: 1px;
  }
  .nav-links {
    display: flex; align-items: center; gap: 36px;
    font-size: 14px; color: var(--ink-2);
  }
  .nav-links a { position: relative; }
  .nav-links a:hover { color: var(--accent-ink); }
  .nav-cta {
    font-size: 13px; font-weight: 600;
    padding: 10px 16px;
    background: var(--ink); color: #fff;
    border-radius: 2px;
    transition: background 160ms ease;
  }
  .nav-cta:hover { background: var(--accent); }

  @media (max-width: 720px) {
    .nav-links a:not(.nav-cta) { display: none; }
  }

  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    padding-top: 28px;
  }
  .hero-eyebrow {
    display: flex; align-items: center; gap: 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; letter-spacing: 0.08em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 28px;
  }
  .hero-eyebrow .dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px oklch(0.65 0.18 45 / 0.18);
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: clamp(28px, 5vw, 64px);
    align-items: end;
    padding-block: 24px 36px;
  }
  @media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; } }

  .hero h1 {
    font-size: clamp(44px, 7.2vw, 104px);
    line-height: 0.95;
    letter-spacing: -0.035em;
    font-weight: 700;
    margin: 0 0 24px;
    color: var(--ink);
    text-wrap: balance;
  }
  .hero h1 .accent {
    color: var(--accent);
    font-style: italic;
    font-weight: 500;
  }
  .hero-sub {
    font-size: clamp(16px, 1.4vw, 18px);
    color: var(--ink-2);
    max-width: 44ch;
    margin: 0 0 32px;
    text-wrap: pretty;
  }
  .hero-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 32px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    font-size: 13px;
  }
  .hero-meta dt {
    font-family: 'JetBrains Mono', monospace;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 11px;
    margin-bottom: 6px;
  }
  .hero-meta dd { margin: 0; color: var(--ink); font-weight: 500; }

  /* Hero image (aerial cityscape with HQ) */
  .hero-img {
    position: relative;
    aspect-ratio: 4 / 5;
    border-radius: 2px;
    overflow: hidden;
    background:
      linear-gradient(180deg, rgba(0,0,0,0.10) 0%, rgba(0,0,0,0.55) 100%),
      url("img/hero.jpg") center/cover no-repeat,
      repeating-linear-gradient(45deg, #d9d9d9 0 8px, #ececec 8px 16px);
  }

  .hero-img-overlay {
    position: absolute; inset: 0;
    padding: 20px;
    display: flex; flex-direction: column; justify-content: space-between;
    color: #fff;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .hero-img-overlay .tl,
  .hero-img-overlay .br {
    display: flex; justify-content: space-between; gap: 12px;
    opacity: 0.9;
  }
  .hero-img-overlay .tag {
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.35);
    padding: 4px 8px;
    backdrop-filter: blur(6px);
  }
  .hero-img-overlay .hq-label {
    align-self: flex-start;
    margin-top: 6px;
    background: var(--accent);
    color: #fff;
    padding: 4px 8px;
    font-weight: 600;
  }
  .hero-img-caption {
    position: absolute;
    left: 20px; bottom: 20px; right: 20px;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    line-height: 1.35;
    text-transform: none; letter-spacing: 0;
  }
  .hero-img-caption strong {
    display: block; font-size: 18px; font-weight: 600; margin-bottom: 4px;
  }

  .hero-cta-row {
    display: flex; gap: 12px; flex-wrap: wrap;
    margin-bottom: 36px;
  }
  .btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 22px;
    font-size: 14px; font-weight: 600;
    border-radius: 2px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
  }
  .btn-primary { background: var(--ink); color: #fff; }
  .btn-primary:hover { background: var(--accent); }
  .btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
  .btn-ghost:hover { border-color: var(--ink); }
  .btn .arrow { transition: transform 200ms ease; }
  .btn:hover .arrow { transform: translateX(3px); }

  /* ---------- Marquee strip ---------- */
  .strip {
    border-block: 1px solid var(--line);
    margin-top: 24px;
    overflow: hidden;
    background: #fafafa;
  }
  .strip-inner {
    display: flex; gap: 56px;
    padding: 18px var(--pad);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; color: var(--muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
    animation: scroll 40s linear infinite;
  }
  .strip-inner span { display: inline-flex; align-items: center; gap: 56px; }
  .strip-inner span::after {
    content: "✦"; color: var(--accent); margin-left: 56px;
  }
  @keyframes scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  /* ---------- Section scaffolding ---------- */
  section { scroll-margin-top: 80px; }
  .sec-head {
    display: grid;
    grid-template-columns: 70px 1fr;
    gap: 40px;
    padding-block: 96px 48px;
    border-top: 1px solid var(--line);
  }
  @media (max-width: 760px) { .sec-head { grid-template-columns: 1fr; gap: 16px; padding-block: 64px 32px; } }
  .sec-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; letter-spacing: 0.1em;
    color: var(--muted);
    text-transform: uppercase;
  }
  .sec-num b {
    display: block; color: var(--accent); font-weight: 600; margin-bottom: 6px;
  }
  .sec-title {
    font-size: clamp(34px, 4.6vw, 60px);
    line-height: 1.02;
    letter-spacing: -0.025em;
    font-weight: 700;
    margin: 0;
    text-wrap: balance;
  }
  .sec-title em {
    color: var(--accent); font-style: italic; font-weight: 500;
  }
  .sec-lede {
    margin-top: 18px;
    font-size: 17px;
    color: var(--ink-2);
    max-width: 56ch;
    text-wrap: pretty;
  }

  /* ---------- Services ---------- */
  .services {
    border-top: 1px solid var(--line);
  }
  .service {
    display: grid;
    grid-template-columns: 80px 1.1fr 2fr 220px;
    gap: 32px;
    padding-block: 36px;
    border-bottom: 1px solid var(--line);
    align-items: start;
    cursor: pointer;
    transition: background 200ms ease, padding 200ms ease;
    position: relative;
  }
  
  .service:hover .svc-title { color: var(--accent-ink); }
  .service:hover .svc-arrow {
    transform: translateX(6px) rotate(-45deg);
    color: var(--accent);
  }
  @media (max-width: 880px) {
    .service { grid-template-columns: 60px 1fr; gap: 14px 20px; }
    .service .svc-body { grid-column: 1 / -1; }
    .service .svc-arrow { display: none; }
  }
  .svc-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--muted);
    padding-top: 4px;
  }
  .svc-title {
    font-size: clamp(24px, 2.4vw, 32px);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0;
    transition: color 200ms ease;
  }
  .svc-body {
    color: var(--ink-2);
    font-size: 15px;
    line-height: 1.55;
    max-width: 56ch;
  }
  .svc-tags {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-top: 12px;
  }
  .svc-tags span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--muted);
    border: 1px solid var(--line);
    padding: 4px 8px;
    border-radius: 2px;
  }
  .svc-arrow {
    justify-self: end;
    font-size: 22px;
    line-height: 1;
    color: var(--ink);
    transition: transform 220ms ease, color 220ms ease;
    display: inline-block;
  }

  /* ---------- Contact ---------- */
  .contact {
    border-top: 1px solid var(--line);
    background: #fafafa;
  }
  .contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: clamp(40px, 6vw, 96px);
    padding-block: 64px 96px;
  }
  @media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }

  .contact-headline {
    font-size: clamp(40px, 5.6vw, 76px);
    line-height: 0.98;
    letter-spacing: -0.03em;
    font-weight: 700;
    margin: 0 0 28px;
    text-wrap: balance;
  }
  .contact-headline em { color: var(--accent); font-style: italic; font-weight: 500; }
  .contact-sub {
    font-size: 17px;
    color: var(--ink-2);
    max-width: 48ch;
    margin: 0 0 36px;
    text-wrap: pretty;
  }
  .contact-cta {
    display: inline-flex; align-items: center; gap: 12px;
    padding: 16px 24px;
    background: var(--ink); color: #fff;
    font-size: 14px; font-weight: 600;
    border-radius: 2px;
    transition: background 160ms ease;
  }
  .contact-cta:hover { background: var(--accent); }

  .contact-block {
    display: flex; flex-direction: column;
    gap: 28px;
  }
  .contact-item {
    padding: 24px 0;
    border-top: 1px solid var(--line);
  }
  .contact-item:last-child { border-bottom: 1px solid var(--line); }
  .contact-item .label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
    display: flex; align-items: center; gap: 10px;
  }
  .contact-item .label::before {
    content: ""; width: 6px; height: 6px; background: var(--accent);
    border-radius: 50%; display: inline-block;
  }
  .contact-item .value {
    font-size: clamp(20px, 2vw, 26px);
    font-weight: 500;
    letter-spacing: -0.015em;
    line-height: 1.2;
    color: var(--ink);
  }
  .contact-item .value:hover { color: var(--accent-ink); }
  .contact-item .sub {
    margin-top: 6px;
    font-size: 13px;
    color: var(--muted);
  }

  /* ---------- Footer ---------- */
  footer {
    border-top: 1px solid var(--line);
    padding-block: 28px;
    font-size: 12px;
    color: var(--muted);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .foot-row {
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px; flex-wrap: wrap;
  }

  /* ---------- Scroll reveal ---------- */
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 700ms ease, transform 700ms cubic-bezier(0.2, 0.7, 0.2, 1);
  }
  .reveal.is-in {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal[data-delay="1"] { transition-delay: 80ms; }
  .reveal[data-delay="2"] { transition-delay: 160ms; }
  .reveal[data-delay="3"] { transition-delay: 240ms; }
  .reveal[data-delay="4"] { transition-delay: 320ms; }
  .reveal[data-delay="5"] { transition-delay: 400ms; }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .strip-inner { animation: none; }
  }