/* ============================================================
   VLS Engineers — 10 page site
   Visual language: Design B.  Header & navigation: dropdown.
   Brand tokens below; change colours here only.
   ============================================================ */

:root{
  --ink:#14181a;
  --slate:#2b3338;
  --graphite:#434e54;
  --navy:#0e3550;
  --green:#5d9b1b;
  --green-dk:#4e8415;
  --green-br:#8fd032;
  --sand:#f0eee9;
  --sand-2:#e2ded6;
  --rule:#d5d0c7;
  --muted:#5e686d;
  --head:"Archivo","Arial Narrow",Arial,sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --wrap:1220px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:140px}
body{font-family:var(--body);font-size:17px;line-height:1.68;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
ul{list-style:none}
:focus-visible{outline:3px solid var(--green);outline-offset:3px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 26px}
h1,h2,h3,h4{font-family:var(--head);line-height:1.06;letter-spacing:-.015em;font-weight:800}
h2{font-size:clamp(1.8rem,3.6vw,2.8rem);font-stretch:78%}
h3{font-size:1.2rem;font-stretch:88%;font-weight:700}
p{max-width:72ch}
.lead{color:var(--muted);font-size:1.06rem;max-width:66ch}
section{padding:82px 0}
.tight{padding:56px 0}
.sand{background:var(--sand)}
.slab{background:var(--ink);color:#fff}
.slab .lead{color:rgba(255,255,255,.76)}

.label{display:flex;align-items:center;gap:14px;font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--green);margin-bottom:16px}
.label::after{content:"";flex:1;height:1px;background:var(--rule)}
.slab .label,.on-dark .label{color:var(--green-br)}
.slab .label::after,.on-dark .label::after{background:rgba(255,255,255,.2)}

.big{font-size:clamp(1.15rem,1.9vw,1.38rem);line-height:1.5;color:var(--slate);max-width:32ch;font-weight:500}
.slab .big{color:rgba(255,255,255,.9)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 26px;font-weight:600;font-size:.97rem;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:.18s}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dk)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--slate)}
.btn-out{border-color:rgba(255,255,255,.55);color:#fff}
.btn-out:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-line{border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}

/* ---------------- top utility bar ---------------- */
.util{background:var(--ink);color:rgba(255,255,255,.72);font-size:.84rem}
.util .wrap{display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:40px;flex-wrap:wrap}
.util a{text-decoration:none}
.util a:hover{color:var(--green-br)}
.util ul{display:flex;gap:22px;flex-wrap:wrap}
.util li{display:flex;align-items:center;gap:7px}
.util svg{width:13px;height:13px;stroke:var(--green-br);fill:none;stroke-width:2;flex:none}

/* ---------------- header with dropdowns ---------------- */
.head{position:sticky;top:0;z-index:70;background:#fff;border-bottom:1px solid var(--rule);box-shadow:0 1px 14px rgba(0,0,0,.05)}
.head .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:84px}
.brand{display:block;flex:none}
.brand img{height:54px;width:auto}

.menu>ul{display:flex;gap:4px;align-items:center}
.menu li{position:relative}
.menu>ul>li>a{display:flex;align-items:center;gap:6px;text-decoration:none;font-size:.95rem;font-weight:500;padding:30px 14px;position:relative;white-space:nowrap}
.menu>ul>li>a::after{content:"";position:absolute;left:14px;right:100%;bottom:26px;height:2px;background:var(--green);transition:right .22s}
.menu>ul>li:hover>a::after,.menu>ul>li>a[aria-current]::after{right:14px}
.menu>ul>li>a[aria-current]{font-weight:600;color:var(--green-dk)}
.caret{width:9px;height:9px;flex:none;stroke:currentColor;fill:none;stroke-width:2.4;opacity:.6;transition:transform .2s}
.menu>ul>li:hover .caret{transform:rotate(180deg)}

.drop{position:absolute;top:100%;left:0;min-width:268px;background:#fff;border:1px solid var(--rule);border-top:3px solid var(--green);box-shadow:0 18px 40px rgba(14,24,26,.16);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s;z-index:80}
.menu li:hover>.drop,.menu li:focus-within>.drop{opacity:1;visibility:visible;transform:none}
.drop a{display:block;padding:11px 20px;text-decoration:none;font-size:.92rem;border-left:2px solid transparent;transition:.15s}
.drop a:hover{background:var(--sand);border-left-color:var(--green);padding-left:24px}
.drop a span{display:block;font-size:.78rem;color:var(--muted);margin-top:1px}

.head-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;width:44px;height:44px;background:var(--ink);border:0;cursor:pointer;place-items:center}
.burger span{display:block;width:20px;height:2px;background:#fff;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:#fff}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* ---------------- hero ---------------- */
.hero{position:relative;min-height:clamp(500px,76vh,680px);display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(104deg,rgba(14,24,26,.95) 0%,rgba(14,24,26,.74) 48%,rgba(14,24,26,.3) 100%)}
.hero .wrap{position:relative;z-index:2;width:100%;padding-top:84px;padding-bottom:0;color:#fff}
.hero h1{font-size:clamp(1.9rem,4.3vw,3.5rem);font-stretch:72%;line-height:1.02;max-width:19ch;margin-bottom:16px;text-transform:uppercase;letter-spacing:-.005em}
.hero .h2line{font-size:clamp(1rem,1.6vw,1.2rem);color:var(--green-br);font-weight:600;margin-bottom:22px;max-width:46ch;line-height:1.45}
.hero p{font-size:1.05rem;color:rgba(255,255,255,.84);max-width:52ch;margin-bottom:28px}
.hero-act{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:34px}
.capstrip{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid rgba(255,255,255,.22)}
.capstrip li{padding:14px 24px 17px 0;margin-right:24px;font-size:.8rem;letter-spacing:.09em;text-transform:uppercase;color:rgba(255,255,255,.8);font-weight:500}
.credit{position:absolute;right:16px;bottom:11px;z-index:3;font-size:.71rem;color:rgba(255,255,255,.48)}

/* ---------------- inner masthead + breadcrumb ---------------- */
.mast{position:relative;background:var(--ink);color:#fff;padding:58px 0 54px;overflow:hidden}
.mast>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.28}
.mast::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,24,26,.93),rgba(14,24,26,.62))}
.mast .wrap{position:relative;z-index:2}
.mast .kicker{font-size:.72rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--green-br);margin-bottom:12px}
.mast h1{font-size:clamp(1.9rem,4.2vw,3.1rem);font-stretch:76%;margin-bottom:10px}
.mast .sub{color:rgba(255,255,255,.78);max-width:62ch}
.crumbs{background:var(--sand);border-bottom:1px solid var(--rule);font-size:.86rem}
.crumbs .wrap{display:flex;align-items:center;gap:9px;min-height:46px;flex-wrap:wrap;color:var(--muted)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--green-dk)}
.crumbs .sep{opacity:.45}

/* ---------------- statement ---------------- */
.statement{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:54px;align-items:start}
.statement p+p{margin-top:16px}

/* ---------------- numbered rows ---------------- */
.rows{border-top:1px solid var(--rule);margin-top:42px}
.row{display:grid;grid-template-columns:66px minmax(0,1fr) minmax(0,1.3fr);gap:28px;padding:28px 0;border-bottom:1px solid var(--rule);align-items:start}
.row .n{font-family:var(--head);font-size:1.4rem;font-weight:800;font-stretch:75%;color:var(--green);padding-top:3px}
.row h3{padding-top:3px}
.row p{color:var(--muted);font-size:.97rem}
.row .sub{margin-top:11px;display:flex;flex-wrap:wrap;gap:7px}
.row .sub span{border:1px solid var(--rule);padding:4px 11px;font-size:.79rem;color:var(--graphite)}
.row .more{display:inline-block;margin-top:12px;font-size:.88rem;font-weight:600;color:var(--green-dk);text-decoration:none;border-bottom:1px solid currentColor}
.row .more:hover{color:var(--ink)}

/* ---------------- alternating bands ---------------- */
.band{display:grid;grid-template-columns:1fr 1fr;align-items:stretch;border:1px solid var(--rule);margin-top:24px;background:#fff}
.band:first-of-type{margin-top:42px}
.band .pic{position:relative;min-height:330px;background:var(--sand-2)}
.band .pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.band .pic.fit img{object-fit:contain;padding:14px;background:#fff}
.band .say{padding:42px}
.band .say h3{font-size:1.45rem;margin-bottom:12px}
.band .say p{color:var(--muted)}
.band .say ul{margin-top:17px;display:grid;gap:9px}
.band .say ul li{font-size:.94rem;padding-left:20px;position:relative;color:var(--graphite)}
.band .say ul li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:1.5px;background:var(--green)}
.band.flip .pic{order:2}

/* ---------------- figures ---------------- */
.figs{display:grid;grid-template-columns:repeat(4,1fr);margin-top:38px;border-top:1px solid rgba(255,255,255,.18)}
.figs li{padding:24px 22px 24px 0;border-right:1px solid rgba(255,255,255,.14)}
.figs li:last-child{border-right:0}
.figs b{display:block;font-family:var(--head);font-size:clamp(1.7rem,3vw,2.5rem);font-stretch:76%;font-weight:800;color:var(--green-br);line-height:1}
.figs span{font-size:.86rem;color:rgba(255,255,255,.7)}

.grid-figs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:40px}
.grid-figs li{background:#fff;padding:22px 18px;text-align:center}
.grid-figs b{display:block;font-family:var(--head);font-size:1.6rem;font-stretch:78%;font-weight:800;color:var(--green-dk);line-height:1.1}
.grid-figs span{font-size:.83rem;color:var(--muted)}

/* ---------------- cards (service hub) ---------------- */
.hub{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:42px}
.hub a{display:block;background:#fff;border:1px solid var(--rule);border-top:3px solid var(--navy);padding:30px 26px;text-decoration:none;transition:.2s}
.hub a:hover{border-top-color:var(--green);transform:translateY(-4px);box-shadow:0 16px 36px rgba(14,24,26,.11)}
.hub .ico{width:50px;height:50px;background:rgba(14,53,80,.08);display:grid;place-items:center;margin-bottom:16px}
.hub .ico svg{width:26px;height:26px;stroke:var(--navy);fill:none;stroke-width:1.8}
.hub a:hover .ico{background:rgba(93,155,27,.15)}
.hub a:hover .ico svg{stroke:var(--green-dk)}
.hub h3{margin-bottom:9px}
.hub p{color:var(--muted);font-size:.94rem}
.hub .go{display:inline-block;margin-top:14px;font-size:.86rem;font-weight:600;color:var(--green-dk)}

/* ---------------- gallery ---------------- */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:42px}
.shots figure{border:1px solid var(--rule);background:#fff;cursor:zoom-in;transition:.2s}
.shots figure:hover{box-shadow:0 16px 36px rgba(20,24,26,.14)}
.shots .fr{aspect-ratio:4/3;overflow:hidden;background:var(--sand-2)}
.shots .fr img{width:100%;height:100%;object-fit:cover}
.shots .fr.fit img{object-fit:contain;padding:8px;background:#fff}
.shots figcaption{padding:14px 16px;border-top:1px solid var(--rule)}
.shots figcaption b{display:block;font-family:var(--head);font-size:1rem;font-stretch:90%}
.shots figcaption span{font-size:.84rem;color:var(--muted)}
.box{position:fixed;inset:0;z-index:150;background:rgba(14,17,19,.95);display:none;place-items:center;padding:26px}
.box.on{display:grid}
.box img{max-width:96vw;max-height:88vh;width:auto;object-fit:contain;background:#fff}
.box .cap{position:absolute;bottom:14px;left:0;right:0;text-align:center;color:#fff;font-size:.9rem}
.box .x{position:absolute;top:12px;right:18px;background:none;border:0;color:#fff;font-size:2.4rem;line-height:1;cursor:pointer}

/* ---------------- tables ---------------- */
.scroll{overflow-x:auto;margin-top:36px;border:1px solid var(--rule)}
table.data{width:100%;border-collapse:collapse;font-size:.91rem;min-width:840px;background:#fff}
table.data th{background:var(--ink);color:#fff;text-align:left;padding:14px 16px;font-weight:600;font-size:.77rem;text-transform:uppercase;letter-spacing:.09em;white-space:nowrap}
table.data td{padding:14px 16px;border-bottom:1px solid var(--rule);vertical-align:top}
table.data tr:nth-child(even) td{background:#fafaf8}
table.data td:first-child{color:var(--muted);white-space:nowrap}
.tag{display:inline-block;padding:3px 10px;font-size:.74rem;font-weight:700;letter-spacing:.05em;white-space:nowrap;text-transform:uppercase}
.tag.ok{background:rgba(93,155,27,.16);color:#3f6b0b}
.tag.run{background:rgba(43,51,56,.12);color:var(--slate)}
.amt{font-weight:600;white-space:nowrap}
.foot-note{font-size:.85rem;color:var(--muted);margin-top:14px}

/* ---------------- client list ---------------- */
.names{display:grid;grid-template-columns:repeat(3,1fr);margin-top:38px;border-top:1px solid var(--rule)}
.names li{padding:15px 20px 15px 0;border-bottom:1px solid var(--rule);font-size:.92rem;font-weight:500}
.names li span{display:block;font-size:.81rem;color:var(--muted);font-weight:400}
.names li i{font-style:normal;color:var(--green);font-weight:700;margin-right:8px;font-size:.8rem}

/* ---------------- flow / lifecycle ---------------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;margin-top:42px;counter-reset:f}
.flow .s{border-top:2px solid var(--green);padding-top:17px}
.flow .s::before{counter-increment:f;content:"0" counter(f);display:block;font-family:var(--head);font-size:1.5rem;font-weight:800;font-stretch:75%;color:var(--green);line-height:1;margin-bottom:10px}
.flow h3{margin-bottom:7px;font-size:1.05rem}
.flow p{color:var(--muted);font-size:.9rem}

/* ---------------- three columns on dark ---------------- */
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:42px}
.three .q{border-left:2px solid var(--green-br);padding-left:21px}
.three .q h3{color:#fff;margin-bottom:9px}
.three .q p{color:rgba(255,255,255,.78);font-size:.96rem}

/* ---------------- two-column checklist ---------------- */
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:16px 44px;margin-top:34px}
.cols2 li{display:flex;gap:12px;align-items:flex-start;font-size:.96rem}
.cols2 svg{width:17px;height:17px;flex:none;margin-top:5px;stroke:var(--green);fill:none;stroke-width:3}

/* ---------------- CTA strip ---------------- */
.strip{background:var(--green);color:#fff;padding:52px 0}
.strip .wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.strip h2{font-size:clamp(1.45rem,2.8vw,2.1rem);margin-bottom:6px}
.strip p{color:rgba(255,255,255,.93);font-weight:500}
.strip .btn-dark:hover{background:#000}

/* ---------------- related pages ---------------- */
.related{border-top:1px solid var(--rule);padding:46px 0;background:var(--sand)}
.related h4{font-size:.73rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:20px;font-weight:700;font-stretch:100%}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rel-grid a{display:block;background:#fff;border:1px solid var(--rule);padding:20px 22px;text-decoration:none;transition:.18s}
.rel-grid a:hover{border-color:var(--green);transform:translateX(3px)}
.rel-grid b{display:block;font-family:var(--head);font-size:1.03rem;font-stretch:90%;margin-bottom:4px}
.rel-grid span{font-size:.86rem;color:var(--muted)}

/* ---------------- contact ---------------- */
.reach{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;margin-top:14px}
form{display:grid;gap:16px}
label{display:grid;gap:7px;font-size:.87rem;font-weight:600}
input,select,textarea{font:inherit;padding:13px 14px;border:1.5px solid #c3bfb6;background:#fff;color:var(--ink);width:100%;border-radius:0}
input:focus,select:focus,textarea:focus{border-color:var(--green);outline:none;box-shadow:0 0 0 3px rgba(93,155,27,.16)}
textarea{min-height:118px;resize:vertical}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.note{font-size:.84rem;color:var(--muted)}
.reach-list{display:grid;margin-bottom:22px;border-top:1px solid var(--rule)}
.reach-list li{padding:17px 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:130px 1fr;gap:18px;align-items:start}
.reach-list b{font-size:.75rem;text-transform:uppercase;letter-spacing:.11em;color:var(--muted);padding-top:3px}
.reach-list a{font-weight:600;text-decoration:none;color:var(--green-dk)}
.reach-list a:hover{color:var(--ink)}
.gmap{width:100%;height:280px;border:1px solid var(--rule)}

/* ---------------- faq ---------------- */
.qa{border-top:1px solid var(--rule);margin-top:38px}
.qa details{border-bottom:1px solid var(--rule)}
.qa summary{cursor:pointer;list-style:none;padding:19px 46px 19px 0;font-family:var(--head);font-weight:700;font-size:1.06rem;font-stretch:90%;position:relative}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:6px;top:15px;font-size:1.6rem;font-weight:400;color:var(--green);line-height:1}
.qa details[open] summary::after{content:"–"}
.qa p{padding:0 46px 21px 0;color:var(--muted)}

/* ---------------- footer ---------------- */
footer.end{background:var(--ink);color:rgba(255,255,255,.68);padding:58px 0 0;font-size:.92rem}
.end-grid{display:grid;grid-template-columns:1.7fr 1fr 1.1fr 1.3fr;gap:36px;padding-bottom:40px}
footer.end h4{color:#fff;font-size:.76rem;letter-spacing:.15em;text-transform:uppercase;margin-bottom:17px;font-stretch:100%;font-weight:700}
footer.end a{text-decoration:none}
footer.end a:hover{color:var(--green-br)}
footer.end li{margin-bottom:9px}
.end-logo{background:#fff;display:inline-block;padding:10px 14px;margin-bottom:15px}
.end-logo img{height:44px;width:auto}
.end-base{border-top:1px solid rgba(255,255,255,.12);padding:19px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.83rem}

.wapp{position:fixed;right:20px;bottom:20px;z-index:90;width:56px;height:56px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 6px 20px rgba(0,0,0,.3)}
.wapp svg{width:30px;height:30px;fill:#fff}

.rise{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.rise.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rise{opacity:1;transform:none;transition:none}}

/* ---------------- responsive ---------------- */
@media (max-width:1120px){
  .menu>ul>li>a{padding:30px 10px;font-size:.9rem}
  .brand img{height:48px}
}
@media (max-width:1050px){
  .hub,.shots,.three,.rel-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr);gap:28px}
  .names{grid-template-columns:repeat(2,1fr)}
  .end-grid{grid-template-columns:1fr 1fr;gap:32px}
  .figs,.grid-figs{grid-template-columns:repeat(2,1fr)}
  .figs li{border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}
}
@media (max-width:960px){
  .util ul:last-child{display:none}
  .util .wrap{justify-content:center}
  .head .wrap{height:74px}
  .brand img{height:44px}
  .burger{display:grid}
  .head-cta .btn{display:none}
  .menu{position:fixed;inset:114px 0 0 0;background:#fff;display:none;overflow-y:auto;border-top:1px solid var(--rule)}
  .menu.open{display:block}
  .menu>ul{flex-direction:column;gap:0;padding:6px 26px 40px;align-items:stretch}
  .menu>ul>li{border-bottom:1px solid var(--rule)}
  .menu>ul>li>a{padding:16px 0;font-size:1.04rem;justify-content:space-between}
  .menu>ul>li>a::after{display:none}
  .drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-top:1px solid var(--rule);border-left:2px solid var(--green);padding:4px 0 10px;margin:0 0 12px;min-width:0;display:none;background:var(--sand)}
  .menu li.open-sub>.drop{display:block}
  .menu li.open-sub>a .caret{transform:rotate(180deg)}
  .statement,.reach{grid-template-columns:1fr;gap:34px}
  .big{max-width:none}
  .row{grid-template-columns:44px 1fr;gap:18px}
  .row p,.row .sub,.row .more{grid-column:2}
  .band,.band.flip{grid-template-columns:1fr}
  .band .pic,.band.flip .pic{order:0;min-height:250px}
  .band .say{padding:30px 26px}
  .hero .wrap{padding-top:56px}
  section{padding:60px 0}
  .cols2{grid-template-columns:1fr}
}
@media (max-width:560px){
  body{font-size:16px}
  .hub,.shots,.three,.flow,.names,.end-grid,.pair,.rel-grid{grid-template-columns:1fr}
  .figs,.grid-figs{grid-template-columns:1fr 1fr}
  .figs li{padding:18px 14px 18px 0}
  .util{font-size:.78rem}
  .strip .wrap{flex-direction:column;align-items:flex-start}
  .reach-list li{grid-template-columns:1fr;gap:3px}
  .capstrip li{padding-right:16px;margin-right:16px;font-size:.74rem}
  .hero h1{font-size:1.65rem}
}