:root{
    --bg:#F5F6F9;--surface:#fff;--ink:#1B2740;--muted:#5B6880;
    --line:#E6EAF1;--accent:#2E5E97;--navy:#253450;
    --font:'Gotham','Montserrat',Arial,sans-serif;
  }
  *{box-sizing:border-box}
  html,body{margin:0}
  body{background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;line-height:1.6}
  a{color:inherit}
  .wrap{max-width:1180px;margin:0 auto;padding:0 clamp(16px,4vw,44px)}
  .cwrap{max-width:860px;margin:0 auto;padding:0 28px}

  /* nav */

  /* navy portrait hero */
  .ahero{background:linear-gradient(160deg,#273a5a 0%,#223047 55%,#1d2a40 100%);color:#fff;position:relative;overflow:hidden}
  .ahero::after{content:"";position:absolute;left:36%;top:-40%;width:50%;height:190%;background:radial-gradient(closest-side,rgba(143,185,232,.16),transparent 70%);pointer-events:none}
  .ahero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:auto 1fr;gap:clamp(34px,5vw,70px);align-items:center;
    padding-top:clamp(44px,6vw,76px);padding-bottom:clamp(44px,6vw,76px)}
  .portrait{width:clamp(220px,26vw,330px);aspect-ratio:3/4;border-radius:18px;overflow:hidden;box-shadow:0 30px 64px rgba(0,0,0,.42);flex:none}
  .portrait img{width:100%;height:100%;object-fit:cover;object-position:center top;display:block}
  .ahero .eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.76rem;color:#8FB9E8;font-weight:700;margin:0 0 14px}
  .ahero h1{font-size:clamp(2.1rem,4.4vw,3.2rem);font-weight:700;letter-spacing:-.025em;line-height:1.05;margin:0 0 18px;max-width:20ch;text-wrap:balance}
  .ahero p{color:#C9D4E6;font-size:clamp(1.02rem,1.5vw,1.16rem);line-height:1.55;margin:0 0 20px;max-width:56ch}
  .ahero .who{font-size:.92rem;color:#9fb2d0;font-weight:600;margin:0}
  .ahero .who b{color:#fff;font-weight:700}

  /* sections */
  section{padding:clamp(52px,8vw,96px) 0}
  .statement{font-size:clamp(1.6rem,3.2vw,2.5rem);font-weight:700;line-height:1.2;letter-spacing:-.025em;color:var(--ink);margin:0;text-wrap:balance}
  .statement .hl{color:var(--accent)}
  .seyebrow{text-transform:uppercase;letter-spacing:.15em;font-size:.76rem;color:var(--accent);font-weight:700;margin:0 0 .9rem}
  h2.sh{font-size:clamp(1.6rem,2.8vw,2.2rem);font-weight:700;letter-spacing:-.02em;margin:0 0 2rem;line-height:1.08}

  /* timeline (collapsible) */
  .tline{border-left:2px solid var(--line);margin-left:7px;padding-left:30px}
  .tentry{position:relative;padding-bottom:24px}
  .tentry:last-child{padding-bottom:0}
  .tentry::before{content:"";position:absolute;left:-38px;top:7px;width:13px;height:13px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--bg)}
  .thead{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;width:100%;background:none;border:0;cursor:pointer;font-family:inherit;text-align:left;padding:0;color:inherit}
  .thead .hcol{display:flex;flex-direction:column}
  .yr{font-size:.76rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:0 0 5px}
  .ttl{font-size:1.14rem;font-weight:700;letter-spacing:-.01em;color:var(--ink);margin:0}
  .chev{width:24px;height:24px;border-radius:50%;border:1px solid var(--line);position:relative;flex:none;margin-top:3px;color:var(--muted);transition:transform .25s, border-color .2s, color .2s}
  .chev::before{content:"";position:absolute;left:50%;top:44%;width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translate(-50%,-50%) rotate(45deg)}
  .thead:hover .chev{border-color:var(--accent);color:var(--accent)}
  .tentry:not(.open) .chev{transform:rotate(-90deg)}
  .tbody{max-height:0;overflow:hidden;opacity:0;transition:max-height .35s ease, opacity .3s ease, margin-top .35s ease;margin-top:0}
  .tentry.open .tbody{max-height:320px;opacity:1;margin-top:9px}
  .tbody p{margin:0;color:#48546c;font-size:1rem;max-width:64ch}
  .tbody a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;font-weight:600}

  /* creative toolkit explorer */
  .tk{display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4vw,52px);align-items:start}
  .tk-list{display:flex;flex-direction:column}
  .tk-item{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 16px;width:100%;text-align:left;
    background:none;border:0;border-top:1px solid var(--line);padding:17px 10px;cursor:pointer;font-family:inherit;
    color:var(--muted);transition:color .2s, padding-left .25s, background .25s}
  .tk-item:last-child{border-bottom:1px solid var(--line)}
  .tk-item .idx{font-size:.72rem;font-weight:700;letter-spacing:.1em;color:#b9c6dd;font-variant-numeric:tabular-nums;transition:color .2s}
  .tk-item .name{font-size:1.16rem;font-weight:700;letter-spacing:-.01em}
  .tk-item:hover{color:var(--ink)}
  .tk-item.active{color:var(--ink);padding-left:18px;background:linear-gradient(90deg,rgba(143,185,232,.14),transparent 72%)}
  .tk-item.active .idx{color:var(--accent)}
  .tk-item .desc{display:none;flex-basis:100%;font-weight:400;color:var(--muted);font-size:.98rem;line-height:1.5;margin:8px 0 2px;max-width:60ch}

  .tk-panel{position:sticky;top:90px;background:var(--navy);color:#fff;border-radius:18px;
    padding:clamp(30px,4vw,44px);min-height:290px;overflow:hidden}
  #tkInner{position:relative}
  #tkInner.fade{animation:tkfade .38s ease}
  @keyframes tkfade{from{opacity:.25;transform:translateY(8px)}to{opacity:1;transform:none}}
  .tk-panel .bignum{position:absolute;right:0;top:-20px;font-size:7rem;font-weight:800;color:rgba(255,255,255,.07);line-height:1;letter-spacing:-.03em}
  .tk-panel h3{font-size:clamp(1.4rem,2.2vw,1.95rem);font-weight:700;letter-spacing:-.02em;margin:0 0 14px;color:#fff;position:relative;z-index:2;max-width:15ch}
  .tk-panel .pdesc{color:#C9D4E6;font-size:1.06rem;line-height:1.55;margin:0;position:relative;z-index:2;max-width:42ch}
  .tk-hint{font-size:.82rem;color:var(--muted);margin:18px 0 0}

  /* origin note */
  .origin{background:var(--navy);color:#fff;border-radius:20px;padding:clamp(34px,5vw,56px);position:relative;overflow:hidden}
  .origin::after{content:"";position:absolute;right:-6%;top:-50%;width:40%;height:200%;background:radial-gradient(closest-side,rgba(143,185,232,.16),transparent 70%)}
  .origin .seyebrow{color:#8FB9E8;position:relative;z-index:2}
  .origin h2{position:relative;z-index:2;font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;letter-spacing:-.02em;margin:0 0 1rem;color:#fff}
  .origin p{position:relative;z-index:2;color:#C9D4E6;font-size:1.06rem;line-height:1.55;margin:0;max-width:64ch}

  /* shared CTA band */
  .cta{background:linear-gradient(180deg,#253450 0%,#1F2D45 100%);color:#fff;position:relative;overflow:hidden}
  .cta::after{content:"";position:absolute;right:-4%;top:-60%;width:46%;height:220%;background:radial-gradient(closest-side,rgba(143,185,232,.18),transparent 70%);pointer-events:none}
  .cta .wrap{position:relative;z-index:2;text-align:center;padding:clamp(38px,4.5vw,60px) 28px}
  .cta .seyebrow{color:#8FB9E8}
  .cta h2{font-size:clamp(1.8rem,3.4vw,2.7rem);font-weight:700;letter-spacing:-.025em;margin:0 0 10px;color:#fff;line-height:1.05}
  .cta p{color:#C3CFE4;font-size:1.05rem;margin:0 auto 26px;max-width:46ch}
  .cbtn{display:inline-block;background:#8FB9E8;color:#13203A;font-weight:700;font-size:.95rem;padding:15px 30px;border-radius:999px;text-decoration:none;transition:.2s}
  .cbtn:hover{filter:brightness(1.06);transform:translateY(-1px)}

  footer{background:var(--surface);border-top:1px solid var(--line)}
  footer .wrap{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;padding:30px 28px;color:var(--muted);font-size:.9rem}
  footer a{color:var(--muted);text-decoration:none;margin-left:20px}
  footer a:hover{color:var(--ink)}

  @media(max-width:820px){
    .ahero .wrap{grid-template-columns:1fr;justify-items:start;gap:28px}
  }
  @media(max-width:760px){
    .tk{grid-template-columns:1fr}
    .tk-panel{display:none}
    .tk-item.active .desc{display:block}
    .tk-item.active{padding-left:10px;background:none}
    .tk-hint{display:none}
  }