:root{--navy:#10283a;--ink:#16222b;--sea:#2a7d86;--sea-d:#1f636a;--fog:#e9eef0;--mist:#f6f8f9;--line:#c7d3d8;--white:#fff;--w:1280px;
--font:"Segoe UI","Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:var(--font);color:var(--ink);background:var(--mist);line-height:1.65;font-size:17px}
a{color:inherit}
:focus-visible{outline:3px solid var(--sea);outline-offset:3px}
.wrap{width:min(var(--w),100% - 48px);margin-inline:auto}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(2.4rem,5vw,4.3rem)}
h2{font-size:clamp(1.9rem,3.4vw,2.9rem)}
h3{font-size:1.15rem;letter-spacing:-.01em}
section{padding:clamp(72px,9vw,128px) 0}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,248,249,.96);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.12em;text-decoration:none;font-size:1.1rem}
.mark{width:22px;height:22px;background:linear-gradient(135deg,var(--navy) 50%,var(--sea) 50%);clip-path:polygon(0 100%,50% 0,100% 100%)}
.nav{display:flex;align-items:center;gap:28px}
.nav a{text-decoration:none;font-size:.97rem;position:relative}
.nav a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;width:100%;background:var(--sea);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav a:not(.nav-cta):hover::after{transform:scaleX(1)}
.nav-cta{background:var(--navy);color:var(--white);padding:9px 18px;border-radius:3px;transition:background .2s}
.nav-cta:hover{background:var(--sea-d)}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer}
.menu-btn span{display:block;width:24px;height:2px;background:var(--ink);margin:6px auto;transition:transform .25s}
.menu-btn[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}
.menu-btn[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* buttons */
.btn{display:inline-block;background:var(--navy);color:var(--white);padding:14px 28px;border-radius:3px;text-decoration:none;font:600 1rem var(--font);border:2px solid var(--navy);cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:var(--sea-d);border-color:var(--sea-d);transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--navy)}
.btn.ghost:hover{background:var(--navy);color:var(--white)}
.btn.light{background:var(--white);color:var(--navy);border-color:var(--white)}
.btn.light:hover{background:var(--sea);color:var(--white);border-color:var(--sea)}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* hero */
.hero{padding:clamp(48px,6vw,88px) 0 0;background:var(--fog);background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;background-position:-1px -1px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.tag{display:inline-block;background:var(--navy);color:var(--white);padding:5px 14px;font-size:.9rem;border-radius:2px;margin-bottom:24px}
.lead{margin-top:24px;font-size:1.2rem;max-width:56ch;color:#33444f}
.drawing{background:var(--white);border:2px solid var(--navy);padding:18px 18px 0;box-shadow:12px 12px 0 var(--sea)}
.drawing svg{width:100%;height:auto;display:block}
.drawing figcaption{padding:14px 2px 16px;font-size:.95rem;border-top:1px solid var(--line)}
.grid path{stroke:var(--line);stroke-width:1;fill:none}
.line path,.dim path{fill:none;stroke:var(--navy);stroke-width:2.5;stroke-linejoin:round;stroke-dasharray:1200;stroke-dashoffset:1200;animation:draw 2.6s ease forwards}
.dim path{stroke:var(--sea);stroke-width:1.5}
.line path:nth-child(2n){animation-delay:.3s}.line path:nth-child(3n){animation-delay:.6s}.dim path{animation-delay:1.4s}
@keyframes draw{to{stroke-dashoffset:0}}
.facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(48px,6vw,80px);background:var(--navy);color:var(--white)}
.facts div{padding:26px 28px;border-right:1px solid rgba(255,255,255,.18)}
.facts div:last-child{border:0}
.facts b{display:block;font-size:1.3rem;margin-bottom:4px;overflow-wrap:anywhere}
.facts span{font-size:.92rem;color:#b9cbd3;line-height:1.45;display:block}

/* about */
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(40px,6vw,96px);align-items:start}
.sticky{position:sticky;top:110px}
.plate{margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:420px}
.plate i{aspect-ratio:1;background:var(--fog);border:1px solid var(--line);position:relative;overflow:hidden}
.plate i:nth-child(1),.plate i:nth-child(5){background:var(--navy)}
.plate i:nth-child(3){background:var(--sea)}
.plate i::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 9px,rgba(255,255,255,.35) 9px 10px)}
.prose p{margin-bottom:20px;max-width:64ch}
.mini{margin-top:36px;border-top:2px solid var(--navy)}
.mini article{display:grid;grid-template-columns:210px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.mini p{margin:0}

/* services */
.services{background:var(--white)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:48px;flex-wrap:wrap}
.sec-head p{max-width:42ch;color:#475963}
.rows{list-style:none;border-top:2px solid var(--navy)}
.rows li{display:grid;grid-template-columns:1fr 1.3fr 1fr;gap:32px;align-items:start;padding:34px 20px;border-bottom:1px solid var(--line);transition:background .25s,padding .25s,border-color .25s;border-left:6px solid transparent}
.rows li:hover{background:var(--fog);border-left-color:var(--sea);padding-left:30px}
.rows p{color:#33444f}
.rows span{font-size:.92rem;color:var(--sea-d);font-weight:600;text-align:right}

/* why */
.why{background:var(--navy);color:var(--white)}
.why-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(40px,6vw,96px)}
.why-intro p{margin:20px 0 32px;color:#b9cbd3;max-width:44ch}
.why-list{list-style:none;counter-reset:n}
.why-list li{padding:26px 0 26px 56px;border-top:1px solid rgba(255,255,255,.22);position:relative}
.why-list li:last-child{border-bottom:1px solid rgba(255,255,255,.22)}
.why-list li:nth-child(even){margin-left:clamp(0px,4vw,56px)}
.why-list li::before{content:"";position:absolute;left:0;top:34px;width:28px;height:2px;background:var(--sea);transition:width .3s}
.why-list li:hover::before{width:42px}
.why-list p{color:#b9cbd3;margin-top:6px;max-width:52ch}

/* contact */
.details p{margin:18px 0 32px;max-width:44ch;color:#475963}
dl{display:grid;grid-template-columns:110px 1fr;border-top:2px solid var(--navy)}
dt,dd{padding:16px 0;border-bottom:1px solid var(--line)}
dt{font-weight:700}
dd a{color:var(--sea-d)}
.form{background:var(--white);border:2px solid var(--navy);padding:clamp(24px,4vw,44px);display:grid;gap:20px;box-shadow:10px 10px 0 var(--fog)}
label{display:grid;gap:6px;font-weight:600;font-size:.95rem}
input,select,textarea{font:400 1rem var(--font);padding:12px 14px;border:1.5px solid #9fb0b8;border-radius:3px;background:var(--mist);width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--sea);box-shadow:0 0 0 3px rgba(42,125,134,.25)}
.invalid{border-color:#b3341f!important}
small{color:#b3341f;font-weight:500;min-height:1em}
.status{font-weight:600;color:var(--sea-d)}
.form .btn{justify-self:start}

/* footer */
.site-footer{background:var(--ink);color:#c9d5da;padding:56px 0 40px;font-size:.95rem}
.foot{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}
.site-footer .brand{color:var(--white);margin-bottom:14px}
.site-footer nav{display:grid;gap:8px;align-content:start}
.site-footer a{text-decoration:none}.site-footer a:hover{color:var(--white);text-decoration:underline}

/* reveal: one soft entrance per block */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

@media(max-width:980px){
 .hero-grid,.split,.why-grid{grid-template-columns:1fr}
 .sticky{position:static}
 .facts{grid-template-columns:1fr 1fr}
 .facts div:nth-child(2){border-right:0}
 .facts div:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.18)}
 .rows li{grid-template-columns:1fr;gap:10px}
 .rows span{text-align:left}
 .foot{grid-template-columns:1fr}
}
@media(max-width:760px){
 .menu-btn{display:block}
 .nav{position:absolute;top:68px;left:0;right:0;background:var(--mist);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;border-bottom:1px solid var(--line);display:none}
 .nav.open{display:flex}
 .nav a{padding:14px 0;border-bottom:1px solid var(--line)}
 .nav-cta{text-align:center;margin-top:14px;border:0}
 .mini article{grid-template-columns:1fr;gap:4px}
 .facts{grid-template-columns:1fr}
 .facts div{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.18)}
 .why-list li:nth-child(even){margin-left:0}
 dl{grid-template-columns:90px 1fr}
 .drawing{box-shadow:8px 8px 0 var(--sea)}
}
@media(prefers-reduced-motion:reduce){
 *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
 .line path,.dim path{stroke-dashoffset:0}.reveal{opacity:1;transform:none}
}