:root {
    /* light by default — apple.com vibe */
    --bg: #FBFAF7;
    --bg-soft: #F2EFE8;
    --bg-tile: #FFFFFF;
    --ink: #1A1A17;
    --ink-soft: #555049;
    --ink-dim: #8A8479;
    --line: rgba(20,20,15,0.08);
    --line-soft: rgba(20,20,15,0.04);
    --accent: #C4302B;
    --accent-soft: rgba(196,48,43,0.10);

    --display: "Fraunces", Georgia, serif;
    --body: "Inter", system-ui, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, monospace;

    --max: 1240px;
    --pad-x: 24px;
    --pad-y: 120px;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body { background: var(--bg); color: var(--ink); }
  body {
    font-family: var(--body);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
  }
  ::selection { background: var(--accent); color: #fff; }
  a { color: inherit; text-decoration: none; }
  button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

  .wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad-x); }
  section { padding: var(--pad-y) 0; position: relative; }

  h1, h2, h3, h4 {
    font-family: var(--display);
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1.04;
  }
  h1 em, h2 em, h3 em, h4 em { font-style: italic; font-weight: 300; color: var(--ink-soft); }

  .eyebrow {
    font-family: var(--body);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--accent);
    text-transform: none;
    display: inline-block;
    margin-bottom: 16px;
  }

  /* ——————————————————— nav (apple-style) ——————————————————— */
  nav.top {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: 56px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(251,250,247,0.72);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-inner {
    width: 100%;
    max-width: var(--max);
    padding: 0 var(--pad-x);
    display: flex; align-items: center; justify-content: space-between;
    gap: 24px;
  }
  .logo {
    font-family: var(--display);
    font-size: 22px;
    letter-spacing: -0.02em;
    display: inline-flex; align-items: baseline;
    gap: 4px;
  }
  .logo .dot { color: var(--accent); }
  .logo .suffix {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-left: 8px;
    align-self: center;
    font-style: normal;
    font-weight: 400;
  }
  .nav-links {
    display: flex; gap: 32px;
    flex: 1; justify-content: center;
  }
  .nav-links a {
    font-size: 13px;
    font-weight: 400;
    color: var(--ink);
    opacity: 0.85;
    transition: opacity .2s, color .2s;
  }
  .nav-links a:hover { opacity: 1; color: var(--accent); }
  .nav-cta {
    font-size: 13px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 999px;
    background: var(--ink);
    color: var(--bg);
    transition: background .25s;
  }
  .nav-cta:hover { background: var(--accent); }

  /* ——————————————————— hero (apple-centered) ——————————————————— */
  .hero {
    padding-top: 140px;
    padding-bottom: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .hero-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--bg-tile);
    font-size: 12.5px;
    color: var(--ink-soft);
    margin-bottom: 32px;
  }
  .hero-pill .live {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--accent);
    animation: pulse 2.4s infinite;
  }
  .hero-bubbles {
    display: inline-flex;
    gap: 10px;
    margin-bottom: 36px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }
  .bubble {
    font-family: var(--display);
    font-style: italic;
    font-weight: 300;
    font-size: clamp(28px, 3.2vw, 42px);
    padding: 14px 32px;
    border-radius: 999px;
    background: var(--bg-tile);
    border: 1px solid var(--line);
    color: var(--ink);
    letter-spacing: -0.015em;
    transition: transform .4s ease, background .3s, color .3s;
    animation: float 6s ease-in-out infinite;
  }
  .bubble.b-ai {
    animation-delay: 0s;
  }
  .bubble.b-sec { animation-delay: 1s; transform: translateY(-6px); }
  .bubble.b-it { animation-delay: 2s; }
  .bubble:hover { transform: translateY(-4px); }
  @keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
  }
  @keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(196,48,43,0.5); }
    70% { box-shadow: 0 0 0 8px rgba(196,48,43,0); }
    100% { box-shadow: 0 0 0 0 rgba(196,48,43,0); }
  }
  h1.hero-title {
    font-size: clamp(40px, 4.8vw, 72px);
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 28px;
    max-width: 18ch;
    margin-left: auto; margin-right: auto;
  }
  h1.hero-title em {
    font-style: italic; font-weight: 300; color: var(--ink-soft);
  }
  h1.hero-title .accent {
    color: var(--accent); font-style: italic; font-weight: 300;
  }
  .hero-lede {
    font-size: clamp(18px, 1.6vw, 22px);
    line-height: 1.45;
    color: var(--ink-soft);
    max-width: 640px;
    margin: 0 auto 40px;
    font-weight: 400;
  }
  .hero-cta {
    display: inline-flex; gap: 12px;
    margin-bottom: 80px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .btn-primary {
    padding: 14px 26px;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    transition: transform .2s, background .2s;
    display: inline-flex; align-items: center; gap: 8px;
  }
  .btn-primary:hover { background: #A82822; }
  .btn-link {
    padding: 14px 22px;
    color: var(--ink);
    font-size: 15px;
    font-weight: 500;
    display: inline-flex; align-items: center; gap: 6px;
    transition: color .2s;
  }
  .btn-link:hover { color: var(--accent); }
  .btn-link .arrow { transition: transform .2s; }
  .btn-link:hover .arrow { transform: translateX(3px); }

  /* hero stats */
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    max-width: 880px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .stat {
    padding: 28px 16px;
    border-right: 1px solid var(--line);
    text-align: center;
  }
  .stat:last-child { border-right: none; }
  .stat .num {
    font-family: var(--display);
    font-size: clamp(36px, 4vw, 52px);
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
  }
  .stat .num em { font-style: italic; color: var(--accent); font-weight: 300; }
  .stat .label {
    font-size: 12px;
    color: var(--ink-dim);
    line-height: 1.4;
  }
  .stat--list .num {
    font-family: var(--display);
    font-style: italic;
    font-weight: 300;
    font-size: clamp(18px, 1.6vw, 22px);
    line-height: 1.25;
    letter-spacing: -0.015em;
    color: var(--ink);
    margin-bottom: 10px;
  }
  .stat--list .num span {
    display: block;
  }

  /* ——————————————————— section header (apple style) ——————————————————— */
  .section-head {
    text-align: center;
    margin-bottom: 64px;
    max-width: 800px;
    margin-left: auto; margin-right: auto;
  }
  .section-head h2 {
    font-size: clamp(40px, 5.5vw, 80px);
    letter-spacing: -0.035em;
    line-height: 1.05;
    margin-bottom: 20px;
  }
  .section-head .sub {
    font-size: clamp(17px, 1.4vw, 19px);
    color: var(--ink-soft);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
  }

  /* ——————————————————— services equal grid ——————————————————— */
  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .service-tile {
    background: var(--bg-tile);
    border-radius: 24px;
    padding: 40px;
    min-height: 480px;
    display: flex; flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: transform .35s ease, box-shadow .35s ease;
    cursor: pointer;
    border: 1px solid var(--line-soft);
  }
  .service-tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(20,20,15,0.08);
  }

  .tile-num {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-dim);
    margin-bottom: 24px;
    letter-spacing: 0.06em;
  }
  .service-tile h3 {
    font-size: clamp(28px, 3vw, 40px);
    letter-spacing: -0.025em;
    margin-bottom: 16px;
  }
  .service-tile p.tile-desc {
    font-size: 15.5px;
    line-height: 1.5;
    color: var(--ink-soft);
    margin-bottom: 24px;
    flex: 1;
  }
  .tile-tags {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-top: auto;
  }
  .tag {
    font-size: 11.5px;
    padding: 5px 11px;
    background: var(--bg-soft);
    color: var(--ink-soft);
    border-radius: 999px;
    font-weight: 500;
  }

  .tile-arrow {
    position: absolute;
    top: 32px; right: 32px;
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--bg-soft);
    display: flex; align-items: center; justify-content: center;
    transition: background .25s, color .25s, transform .25s;
    color: var(--ink);
  }
  .service-tile:hover .tile-arrow {
    background: var(--accent);
    color: #fff;
    transform: rotate(-45deg);
  }

  /* visual element for featured tile */
  .visual-rings {
    width: 100%;
    aspect-ratio: 1;
    max-width: 360px;
    position: relative;
    display: flex; align-items: center; justify-content: center;
  }
  .visual-rings .ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--line);
  }
  .visual-rings .ring.r1 { inset: 0; }
  .visual-rings .ring.r2 { inset: 12%; }
  .visual-rings .ring.r3 { inset: 24%; }
  .visual-rings .ring.r4 { inset: 36%; border-color: var(--accent); }
  .visual-rings .core {
    width: 22%; aspect-ratio: 1;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 10px 40px rgba(196,48,43,0.3);
  }
  .visual-rings .label {
    position: absolute;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--ink-dim);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .visual-rings .label.t { top: -6px; left: 50%; transform: translateX(-50%); background: var(--bg-tile); padding: 0 8px; }
  .visual-rings .label.r { right: -10px; top: 50%; transform: translateY(-50%) rotate(90deg); transform-origin: right; background: var(--bg-tile); padding: 0 8px; }
  .visual-rings .label.b { bottom: -6px; left: 50%; transform: translateX(-50%); background: var(--bg-tile); padding: 0 8px; }

  /* ——————————————————— partners ——————————————————— */
  .partners {
    background: var(--bg-soft);
    padding: 100px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .partners-head {
    text-align: center;
    margin-bottom: 56px;
  }
  .partners-head .eyebrow {
    margin-bottom: 14px;
  }
  .partners-head h3 {
    font-family: var(--display);
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1.15;
    max-width: 22ch;
    margin: 0 auto;
  }
  .partners-head h3 em {
    font-style: italic;
    font-weight: 300;
    color: var(--ink-soft);
  }
  .partners-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 1080px;
    margin: 0 auto;
  }
  .partner-tile {
    background: var(--bg-tile);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 32px 28px;
    transition: transform .3s, box-shadow .3s;
  }
  .partner-tile:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(20,20,15,0.05);
  }
  .partner-tile .num {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-dim);
    letter-spacing: 0.06em;
    margin-bottom: 20px;
    display: block;
  }
  .partner-tile h4 {
    font-family: var(--display);
    font-size: 24px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 12px;
    line-height: 1.2;
  }
  .partner-tile h4 em {
    font-style: italic;
    font-weight: 300;
    color: var(--ink-soft);
  }
  .partner-tile p {
    font-size: 14.5px;
    line-height: 1.55;
    color: var(--ink-soft);
  }

  /* ——————————————————— marquee ——————————————————— */
  .marquee {
    margin-top: 64px;
    overflow: hidden;
    padding: 24px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .marquee-track {
    display: flex;
    gap: 56px;
    white-space: nowrap;
    animation: scroll-x 40s linear infinite;
    width: max-content;
  }
  .marquee-item {
    font-family: var(--display);
    font-style: italic;
    font-weight: 300;
    font-size: 28px;
    color: var(--ink-soft);
    display: inline-flex; align-items: center; gap: 56px;
  }
  .marquee-item::after {
    content: ""; width: 6px; height: 6px;
    background: var(--accent); border-radius: 50%;
  }
  @keyframes scroll-x {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
  }

  /* ——————————————————— references (apple bento) ——————————————————— */
  .ref-bg { background: var(--bg-soft); }
  .refs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .ref-card {
    background: var(--bg-tile);
    border-radius: 24px;
    padding: 32px;
    min-height: 320px;
    display: flex; flex-direction: column;
    border: 1px solid var(--line-soft);
    transition: transform .35s, box-shadow .35s;
    cursor: pointer;
    position: relative;
  }
  .ref-card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(20,20,15,0.06); }

  .ref-meta {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 16px;
  }
  .ref-meta .dot {
    width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
  }
  .ref-card h4 {
    font-size: clamp(22px, 2.2vw, 30px);
    line-height: 1.15;
    margin-bottom: 14px;
    flex: 1;
  }

  .ref-card p {
    color: var(--ink-soft);
    font-size: 14.5px;
    line-height: 1.5;
    margin-bottom: 20px;
  }
  .ref-foot {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--line);
    font-size: 12px;
    color: var(--ink-dim);
  }
  .ref-foot .read {
    color: var(--ink);
    font-weight: 500;
    display: inline-flex; align-items: center; gap: 4px;
  }

  /* ——————————————————— about ——————————————————— */
  .about-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 64px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
  }
  .about-portrait {
    aspect-ratio: 4/5;
    border-radius: 32px;
    background: var(--bg-tile);
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
  }
  .about-portrait .photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .about-portrait .initials {
    position: absolute;
    inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--display);
    font-size: clamp(120px, 18vw, 220px);
    font-style: italic;
    font-weight: 300;
    letter-spacing: -0.04em;
    color: var(--ink);
    line-height: 1;
  }
  .about-portrait .initials .dot { color: var(--accent); }
  .about-portrait .grid-overlay {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(var(--line-soft) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
  }
  .about-portrait .badge {
    position: absolute;
    bottom: 24px; left: 24px;
    font-size: 11px;
    color: #fff;
    background: rgba(20,20,15,0.55);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.12);
    padding: 8px 14px;
    border-radius: 999px;
    font-weight: 500;
    letter-spacing: 0.02em;
  }
  .about-portrait .corner-tag {
    position: absolute;
    top: 24px; right: 24px;
    font-family: var(--mono);
    font-size: 10px;
    color: rgba(255,255,255,0.85);
    text-align: right;
    line-height: 1.6;
    text-shadow: 0 1px 8px rgba(0,0,0,0.4);
    letter-spacing: 0.02em;
  }

  .about-content h2 {
    font-size: clamp(40px, 5vw, 72px);
    letter-spacing: -0.035em;
    margin-bottom: 8px;
  }
  .about-role {
    font-size: 14px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 28px;
  }
  .about-content p {
    color: var(--ink-soft);
    font-size: 17px;
    line-height: 1.55;
    margin-bottom: 16px;
  }
  .about-content p strong { color: var(--ink); font-weight: 500; }

  .about-list {
    margin-top: 32px;
    border-top: 1px solid var(--line);
  }
  .about-list-item {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 24px;
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
    align-items: baseline;
    position: relative;
  }
  .about-list-item .year {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-dim);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    padding-top: 4px;
  }
  .about-list-item .role {
    font-family: var(--body);
    font-size: 18px;
    font-weight: 500;
    line-height: 1.35;
    color: var(--ink);
  }
  .about-list-item .role .org {
    color: var(--ink-soft);
    font-weight: 400;
    margin-left: 8px;
  }
  .about-list-item .role .desc {
    display: block;
    font-size: 14px;
    font-weight: 400;
    color: var(--ink-dim);
    margin-top: 4px;
    line-height: 1.5;
  }
  .about-list-item.section-break {
    border-bottom: none;
    padding: 28px 0 8px;
    border-top: 1px dashed var(--line);
  }
  .about-list-item.section-break .year {
    color: var(--accent);
    font-weight: 500;
  }
  .about-list-item:last-child { border-bottom: 1px solid var(--line); }

  .about-links {
    display: flex; gap: 10px; margin-top: 32px; flex-wrap: wrap;
  }
  .btn-ghost {
    font-size: 13px;
    font-weight: 500;
    padding: 10px 18px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    display: inline-flex; align-items: center; gap: 8px;
    transition: all .25s;
    background: var(--bg-tile);
  }
  .btn-ghost:hover { border-color: var(--ink); }
  .btn-ghost .dot { width: 5px; height: 5px; background: var(--accent); border-radius: 50%; }

  /* ——————————————————— faq ——————————————————— */
  .faq-bg { background: var(--bg-soft); }
  .faq-list {
    max-width: 880px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
  }
  .faq-item {
    border-bottom: 1px solid var(--line);
  }
  .faq-q {
    width: 100%;
    text-align: left;
    padding: 28px 8px;
    font-family: var(--body);
    font-size: clamp(17px, 1.4vw, 20px);
    font-weight: 500;
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    cursor: pointer;
    transition: color .2s;
  }
  .faq-q:hover { color: var(--accent); }
  .faq-q .icon {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 1px solid var(--line);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: transform .3s ease, background .2s, border-color .2s;
    font-size: 14px;
    color: var(--ink-soft);
  }
  .faq-item.open .faq-q .icon {
    transform: rotate(45deg);
    background: var(--ink);
    color: var(--bg);
    border-color: var(--ink);
  }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }
  .faq-item.open .faq-a { max-height: 600px; }
  .faq-a-inner {
    padding: 0 8px 28px;
    font-size: 16px;
    line-height: 1.65;
    color: var(--ink-soft);
    max-width: 760px;
  }

  /* ——————————————————— contact (apple-big) ——————————————————— */
  .contact {
    text-align: center;
    background: var(--ink);
    color: var(--bg);
    border-radius: 0;
    padding: 140px var(--pad-x) 120px;
    position: relative;
    overflow: hidden;
  }
  .contact .eyebrow { color: var(--accent); }
  .contact-big {
    font-family: var(--display);
    font-size: clamp(56px, 8vw, 120px);
    line-height: 0.98;
    letter-spacing: -0.04em;
    margin-bottom: 32px;
    max-width: 16ch;
    margin-left: auto; margin-right: auto;
    color: var(--bg);
  }
  .contact-big em { font-style: italic; font-weight: 300; opacity: 0.6; }
  .contact-big .accent-text { color: var(--accent); font-style: italic; font-weight: 300; }

  .contact-sub {
    font-size: 18px;
    line-height: 1.5;
    color: rgba(251,250,247,0.7);
    max-width: 540px;
    margin: 0 auto 56px;
  }

  .contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 980px;
    margin: 0 auto;
  }
  .contact-card {
    padding: 28px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    text-align: left;
    transition: background .3s, border-color .3s;
  }
  .contact-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.16);
  }
  .contact-card .label {
    font-size: 12px;
    color: rgba(251,250,247,0.5);
    margin-bottom: 14px;
    display: flex; align-items: center; gap: 8px;
  }
  .contact-card .label::before {
    content: ""; width: 5px; height: 5px;
    background: var(--accent); border-radius: 50%;
  }
  .contact-card .value {
    font-family: var(--display);
    font-size: clamp(18px, 1.8vw, 22px);
    line-height: 1.2;
    color: var(--bg);
    display: flex; align-items: center; justify-content: space-between;
    transition: color .25s;
  }
  .contact-card:hover .value { color: var(--accent); }

  /* ——————————————————— footer ——————————————————— */
  footer.foot {
    padding: 32px var(--pad-x);
    background: var(--ink);
    color: rgba(251,250,247,0.5);
    display: flex; justify-content: space-between; align-items: center;
    font-size: 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
  }
  footer.foot .right { display: flex; gap: 24px; }

  /* ——————————————————— reveal ——————————————————— */
  .reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s ease; }
  .reveal.in { opacity: 1; transform: translateY(0); }
  .reveal[data-delay="1"] { transition-delay: .06s; }
  .reveal[data-delay="2"] { transition-delay: .12s; }
  .reveal[data-delay="3"] { transition-delay: .18s; }
  .reveal[data-delay="4"] { transition-delay: .24s; }

  /* ——————————————————— responsive ——————————————————— */
  /* ——————————————————— skip to content ——————————————————— */
  .skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 200;
    padding: 10px 20px;
    background: var(--accent);
    color: #fff;
    border-radius: 0 0 8px 8px;
    font-size: 14px;
    font-weight: 500;
    transition: top .2s;
  }
  .skip-link:focus {
    top: 0;
  }

  /* ——————————————————— mobile menu ——————————————————— */
  .nav-toggle {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    cursor: pointer;
    flex-shrink: 0;
  }
  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    position: relative;
    transition: background .2s;
  }
  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--ink);
    transition: transform .3s ease;
  }
  .nav-toggle span::before { top: -6px; }
  .nav-toggle span::after { top: 6px; }
  .nav-toggle[aria-expanded="true"] span { background: transparent; }
  .nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99;
    background: var(--bg);
    padding: 40px var(--pad-x);
    flex-direction: column;
    gap: 8px;
  }
  .mobile-menu.open { display: flex; }
  .mobile-menu a {
    font-family: var(--display);
    font-size: 32px;
    font-weight: 400;
    letter-spacing: -0.02em;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
    transition: color .2s;
  }
  .mobile-menu a:hover { color: var(--accent); }

  @media (max-width: 960px) {
    :root { --pad-y: 80px; }
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(2) { border-right: none; }
    .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
    .services-grid { grid-template-columns: 1fr; }
    .service-tile, .service-tile.featured, .service-tile.half { grid-column: span 1; }
    .service-tile.featured { flex-direction: column; padding: 40px; min-height: auto; }
    .refs-grid { grid-template-columns: 1fr; }
    .partners-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; }
    footer.foot { flex-direction: column; gap: 12px; text-align: center; }
    footer.foot .right { justify-content: center; }
  }

  /* ——————————————————— reduced motion ——————————————————— */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
    .marquee-track { animation: none; }
  }



  /* density */
  body[data-density="airy"] { --pad-y: 160px; }
  body[data-density="compact"] { --pad-y: 80px; }

  /* dark mode */
  body[data-mode="dark"] {
    --bg: #0E0E0C;
    --bg-soft: #161614;
    --bg-tile: #1A1A17;
    --ink: #F4F1EA;
    --ink-soft: #B8B3A8;
    --ink-dim: #6B665C;
    --line: rgba(244,241,234,0.10);
    --line-soft: rgba(244,241,234,0.05);
  }
  body[data-mode="dark"] nav.top {
    background: rgba(14,14,12,0.72);
  }
  body[data-mode="dark"] .hero-pill { background: var(--bg-tile); }
  body[data-mode="dark"] .visual-rings .label.t,
  body[data-mode="dark"] .visual-rings .label.r,
  body[data-mode="dark"] .visual-rings .label.b { background: var(--bg-tile); }
  body[data-mode="dark"] .about-portrait .badge { background: rgba(26,26,23,0.85); color: var(--ink); }
  body[data-mode="dark"] .nav-cta { background: var(--ink); color: var(--bg); }
  body[data-mode="dark"] .nav-cta:hover { background: var(--accent); color: #fff; }
  body[data-mode="dark"] .contact {
    background: #050504;
  }
  body[data-mode="dark"] footer.foot { background: #050504; }
  body[data-mode="dark"] .btn-primary { color: #fff; }
  body[data-mode="dark"] .mobile-menu { background: var(--bg); }
  body[data-mode="dark"] .nav-toggle span,
  body[data-mode="dark"] .nav-toggle span::before,
  body[data-mode="dark"] .nav-toggle span::after { background: var(--ink); }