:root{
  --concrete:#e9ebec;
  --paper:#f7f8f8;
  --ink:#16212a;
  --steel:#5d6b77;
  --line:#c9ced2;
  --membrane:#2a5ba5;
  --membrane-dark:#1d4380;
  --wrap:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Assistant','Heebo',system-ui,'Segoe UI',Arial,sans-serif;
  font-size:1.0625rem;line-height:1.7;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--membrane);outline-offset:3px}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:24px}
h1,h2,h3{font-family:'Frank Ruhl Libre','David Libre',Georgia,serif;line-height:1.2;letter-spacing:-.01em}

/* header */
.top{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:32px;height:68px}
.logo{font-family:'Frank Ruhl Libre',Georgia,serif;font-weight:900;font-size:1.5rem;color:var(--ink)}
.nav{display:flex;gap:28px;margin-inline-start:auto;font-weight:600;font-size:1rem}
.nav a{padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--membrane)}
.tel{background:var(--ink);color:#fff;padding:9px 20px;font-weight:700;border-radius:2px;white-space:nowrap}
.tel:hover{background:var(--membrane-dark)}

/* hero */
.hero{background:var(--concrete);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:stretch;padding-block:64px}
.hero-text{display:flex;flex-direction:column;justify-content:center}
.hero h1{font-size:clamp(2.4rem,5.2vw,4.2rem);font-weight:900;line-height:1.08}
.hero .lead{margin-top:24px;max-width:46ch;font-size:1.2rem;color:#2e3b46}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-block;padding:14px 28px;font-weight:700;border-radius:2px;border:2px solid var(--ink)}
.btn-solid{background:var(--ink);color:#fff}
.btn-solid:hover{background:var(--membrane-dark);border-color:var(--membrane-dark)}
.btn-line{background:transparent;color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}

.stages{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);margin-top:48px;border-top:3px solid var(--ink);counter-reset:st}
.stages li{padding:14px 10px 0 0;font-weight:700;font-size:.98rem;position:relative}
.stages li::before{content:"";position:absolute;top:-9px;inset-inline-start:0;width:15px;height:15px;background:var(--paper);border:3px solid var(--ink);border-radius:50%}
.stages li small{display:block;font-weight:400;color:var(--steel);font-size:.88rem;line-height:1.4;margin-top:2px}
.stages li:nth-child(2)::before{background:var(--membrane);border-color:var(--membrane)}

.hero-photo{position:relative;min-height:520px;background:var(--steel)}
.hero-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.photo-note{position:absolute;inset-inline:0;bottom:0;padding:10px 14px;background:rgba(22,33,42,.82);color:#fff;font-size:.92rem}

/* sections */
section{padding:88px 0}
section + section{border-top:1px solid var(--line)}
.head{max-width:62ch}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem);font-weight:900}
.head p{margin-top:14px;color:#33414c;font-size:1.12rem}

/* professionals */
.pro-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:44px;border-top:1px solid var(--ink)}
.pro-grid div{padding:24px 24px 8px 24px;border-inline-start:1px solid var(--line)}
.pro-grid div:first-child{border-inline-start:0;padding-inline-start:0}
.pro-grid h3{font-size:1.3rem;font-weight:700;margin-bottom:8px}
.pro-grid p{color:#33414c;font-size:1rem}

/* project sheets: title-block layout */
.sheet{margin-top:56px;border:2px solid var(--ink);background:#fff}
.sheet-title{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;border-bottom:2px solid var(--ink)}
.sheet-title>div{padding:14px 18px;border-inline-start:1px solid var(--ink)}
.sheet-title>div:first-child{border-inline-start:0}
.sheet-title dt{font-size:.82rem;color:var(--steel);font-weight:600}
.sheet-title dd{font-weight:700;font-size:1.08rem}
.sheet-title h3{font-size:1.55rem;font-weight:900}
.state{display:inline-block;padding:2px 10px;font-size:.9rem;font-weight:700;border:2px solid var(--ink)}
.state-live{background:var(--membrane);color:#fff;border-color:var(--membrane)}
.sheet-body{display:grid;grid-template-columns:1fr 1fr 1fr;gap:2px;background:var(--ink)}
.sheet-body.two{grid-template-columns:1fr 1fr}
.sheet-body figure{position:relative;margin:0;background:#dfe3e5;overflow:hidden}
.sheet-body img{width:100%;aspect-ratio:3/4;object-fit:cover}
.sheet-body.wide img{aspect-ratio:16/10}
.sheet-body figcaption{position:absolute;inset-inline-start:0;bottom:0;background:var(--ink);color:#fff;font-size:.86rem;font-weight:600;padding:4px 10px}
.sheet-note{padding:16px 18px;border-top:2px solid var(--ink);color:#33414c}
.todo{background:#fff2a8;padding:0 6px;font-weight:700}

/* scope */
.scope{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:44px;border:2px solid var(--ink);background:#fff}
.scope>div{padding:34px}
.scope>div+div{border-inline-start:2px solid var(--ink)}
.scope h3{font-size:1.6rem;font-weight:900;margin-bottom:10px}
.scope ul{margin-top:16px;padding-inline-start:20px;color:#33414c}
.scope li{margin-bottom:4px}
.scope .quiet{color:var(--steel);margin-top:16px;font-size:.98rem}

/* london link */
.london{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.london-imgs{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--ink);border:2px solid var(--ink)}
.london-imgs img{aspect-ratio:4/3;object-fit:cover;width:100%}
.link-arrow{display:inline-block;margin-top:20px;font-weight:700;border-bottom:3px solid var(--membrane);padding-bottom:2px}

/* contact */
.contact{background:var(--ink);color:#fff}
.contact h2{color:#fff}
.contact .head p{color:#c9d3db}
.contact-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.contact .btn{border-color:#fff}
.contact .btn-solid{background:#fff;color:var(--ink)}
.contact .btn-solid:hover{background:var(--membrane);color:#fff;border-color:var(--membrane)}
.contact .btn-line{color:#fff}
.contact .btn-line:hover{background:#fff;color:var(--ink)}

footer{background:#0f171d;color:#9fb0bd;padding:34px 0;font-size:.95rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between}

@media(max-width:900px){
  .nav{display:none}
  .hero .wrap{grid-template-columns:1fr;gap:32px;padding-block:40px}
  .hero-photo{min-height:360px;order:-1}
  .stages{grid-template-columns:repeat(2,1fr);row-gap:22px;border-top:0}
  .stages li{border-top:3px solid var(--ink)}
  .pro-grid{grid-template-columns:1fr 1fr}
  .pro-grid div:nth-child(3){border-inline-start:0;padding-inline-start:0}
  .sheet-title{grid-template-columns:1fr 1fr}
  .sheet-title>div:first-child{grid-column:1/-1}
  .sheet-title>div:nth-child(2){border-inline-start:0}
  .sheet-body{grid-template-columns:1fr 1fr}
  .scope,.london{grid-template-columns:1fr}
  .scope>div+div{border-inline-start:0;border-top:2px solid var(--ink)}
  section{padding:60px 0}
}
@media(max-width:560px){
  .pro-grid{grid-template-columns:1fr}
  .pro-grid div{border-inline-start:0;padding-inline-start:0}
  .sheet-body{grid-template-columns:1fr}
  .tel{padding:8px 14px}
}
@media(prefers-reduced-motion:no-preference){
  .stages{animation:draw .9s ease-out both}
  @keyframes draw{from{clip-path:inset(0 0 0 100%)}to{clip-path:inset(0 0 0 0)}}
}

/* contact form */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact form{background:#fff;color:var(--ink);padding:30px;border-radius:2px}
.field{margin-bottom:16px}
.contact label{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px}
.contact input[type=text],.contact input[type=tel],.contact select,.contact textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:2px;font:inherit;color:var(--ink);background:#fff}
.contact textarea{min-height:90px;resize:vertical}
.contact input:focus,.contact select:focus,.contact textarea:focus{outline:3px solid var(--membrane);outline-offset:1px;border-color:var(--membrane)}
.contact form button{width:100%;padding:14px;border:2px solid var(--ink);background:var(--ink);color:#fff;font:inherit;font-weight:700;cursor:pointer;border-radius:2px}
.contact form button:hover{background:var(--membrane-dark);border-color:var(--membrane-dark)}
.contact form button:disabled{opacity:.6;cursor:wait}
.form-note{font-size:.9rem;color:var(--steel);margin-top:12px;text-align:center}
.form-note.ok{color:#14532d;font-weight:700}
.form-note.err{color:#9b1c1c;font-weight:700}
.form-note a{text-decoration:underline}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:32px}}

/* london page */
.sheet-body.five{grid-template-columns:repeat(6,1fr)}
.sheet-body.five figure{grid-column:span 2}
.sheet-body.five figure:nth-child(n+4){grid-column:span 3}
.sheet-body.four{grid-template-columns:1fr 1fr}
@media(max-width:700px){.sheet-body.five,.sheet-body.four{grid-template-columns:1fr}.sheet-body.five figure,.sheet-body.five figure:nth-child(n+4){grid-column:auto}}
.sheet-body.auto img{aspect-ratio:4/3}
.page-head{background:var(--concrete);border-bottom:1px solid var(--line);padding:56px 0}
.page-head h1{font-size:clamp(2.1rem,4.4vw,3.4rem);font-weight:900}
.page-head p{margin-top:16px;max-width:60ch;font-size:1.15rem;color:#2e3b46}
.back{display:inline-block;margin-bottom:18px;font-weight:700;border-bottom:3px solid var(--membrane);padding-bottom:2px}

.sheet-note .link-arrow{margin-top:0;margin-inline-start:12px}