/* ===========================================================
   ANCHOR ENGINEERING SOLUTIONS — Design tokens & base styles
   Signature: blueprint grid atmosphere + title-block corner
   brackets (drawn from civil-engineering drafting conventions)
   =========================================================== */

:root{
  --navy-900:#081A2E;
  --navy-800:#0A2540;
  --navy-700:#123A5E;
  --navy-600:#1C4E7A;
  --gold:#E2932B;
  --gold-dark:#C97A1A;
  --gold-light:#F5B860;
  --white:#FFFFFF;
  --off-white:#F5F7FA;
  --paper:#EFF3F7;
  --steel:#5C7089;
  --ink:#0F2136;
  --line:#D8E0E8;

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --container:1200px;
  --radius:4px;
  --shadow-card: 0 12px 30px -12px rgba(8,26,46,0.25);
  --shadow-lift: 0 20px 45px -18px rgba(8,26,46,0.4);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; color:var(--navy-800); line-height:1.15; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

:focus-visible{
  outline:3px solid var(--gold);
  outline-offset:2px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Blueprint grid atmosphere ---------- */
.blueprint-bg{
  background-color:var(--navy-800);
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size:36px 36px;
  position:relative;
}

/* ---------- Eyebrow / mono spec labels ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold);
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background:var(--gold);
  display:inline-block;
}
.eyebrow.on-light{ color:var(--navy-600); }
.eyebrow.on-light::before{ background:var(--navy-600); }

/* ---------- Corner-bracket frame (title-block motif) ---------- */
.brackets{
  position:relative;
  padding:14px;
}
.brackets::before,.brackets::after,
.brackets .b-tl,.brackets .b-br{ content:""; }
.brackets::before, .brackets::after{
  position:absolute; width:22px; height:22px;
  border-color:var(--gold); border-style:solid; border-width:0;
}
.brackets::before{ top:0; left:0; border-top-width:2px; border-left-width:2px; }
.brackets::after{ bottom:0; right:0; border-bottom-width:2px; border-right-width:2px; }

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(10,37,64,0.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{ box-shadow:0 8px 24px -12px rgba(0,0,0,.5); }
.nav-wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:94px;
}
.brand{
  display:flex; align-items:center; gap:12px;
  font-family:var(--font-display); font-weight:700;
  font-size:19px; color:var(--white);
}
.brand-mark{
  width:38px; height:38px; flex:0 0 auto;
  border:2px solid var(--gold);
  display:grid; place-items:center;
  font-family:var(--font-mono); font-size:13px; color:var(--gold);
  transform:rotate(45deg);
}
.brand-mark span{ transform:rotate(-45deg); }
.brand small{
  display:block; font-family:var(--font-mono); font-weight:400;
  font-size:10.5px; letter-spacing:.12em; color:var(--gold-light);
  text-transform:uppercase; margin-top:2px;
}
.brand-logo{ padding:0; }
.brand-logo-img{
  height:64px; width:auto;
  background:var(--white);
  padding:9px 18px;
  border-radius:3px;
  display:block;
}
.brand-logo-img--footer{ height:70px; }
@media (max-width:760px){
  .brand-logo-img{ height:46px; padding:6px 14px; }
}

.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-size:14.5px; font-weight:500; color:#CBD9E6;
  position:relative; padding:6px 0;
  transition:color .2s ease;
}
.nav-links a:hover, .nav-links a.active{ color:var(--white); }
.nav-links a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px;
  height:2px; background:var(--gold);
}
.nav-cta{
  background:var(--gold); color:var(--navy-900) !important;
  padding:11px 20px; border-radius:2px; font-weight:600 !important;
  font-size:13.5px !important; letter-spacing:.02em;
  transition:background .2s ease, transform .2s ease;
}
.nav-cta:hover{ background:var(--gold-light); transform:translateY(-1px); }

.nav-toggle{
  display:none; background:none; border:0; width:40px; height:40px;
  position:relative; z-index:200;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; position:absolute; left:9px; width:22px; height:2px; background:var(--white);
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle span{ top:19px; }
.nav-toggle span::before{ top:-7px; }
.nav-toggle span::after{ top:7px; }
.nav-toggle.open span{ background:transparent; }
.nav-toggle.open span::before{ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span::after{ transform:translateY(-7px) rotate(-45deg); }

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 28px; border-radius:2px;
  font-weight:600; font-size:14.5px; letter-spacing:.01em;
  border:1px solid transparent; transition:all .2s ease;
}
.btn-gold{ background:var(--gold); color:var(--navy-900); }
.btn-gold:hover{ background:var(--gold-light); transform:translateY(-2px); box-shadow:var(--shadow-lift); }
.btn-outline{ background:transparent; color:var(--white); border-color:rgba(255,255,255,.5); }
.btn-outline:hover{ border-color:var(--white); background:rgba(255,255,255,.08); }
.btn-navy{ background:var(--navy-800); color:var(--white); }
.btn-navy:hover{ background:var(--navy-700); transform:translateY(-2px); }

/* ============ HERO ============ */
.hero{
  color:var(--white);
  padding:110px 0 90px;
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(100deg, rgba(8,26,46,.95) 30%, rgba(8,26,46,.55) 65%, rgba(8,26,46,.25) 100%);
  pointer-events:none;
}
.hero-photo{
  position:absolute; inset:0; z-index:-1;
  background-size:cover; background-position:center;
}
.hero-photo.blueprint-bg{ position:absolute; }
.hero-grid{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1.15fr .85fr; gap:60px; align-items:center;
}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);
  font-weight:700; color:var(--white);
  letter-spacing:-.01em;
  margin-bottom:22px;
}
.hero h1 em{ font-style:normal; color:var(--gold-light); }
.hero p.lead{
  font-size:18px; color:#D6E1EC; max-width:52ch; margin-bottom:36px;
}
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

.hero-stats{
  display:flex; flex-direction:column; gap:0;
  border-left:1px solid rgba(255,255,255,.18);
  padding-left:36px;
}
.hero-stat{ padding:18px 0; border-bottom:1px solid rgba(255,255,255,.14); }
.hero-stat:last-child{ border-bottom:0; }
.hero-stat .num{ font-family:var(--font-display); font-size:34px; color:var(--gold-light); font-weight:700; }
.hero-stat .lbl{ font-family:var(--font-mono); font-size:11.5px; letter-spacing:.1em; text-transform:uppercase; color:#B9C8D8; }

/* ============ SECTIONS ============ */
.section{ padding:96px 0; }
.section-alt{ background:var(--off-white); }
.section-navy{ background:var(--navy-800); color:var(--white); }
.section-navy h2{ color:var(--white); }
.section-head{ max-width:680px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,3.4vw,40px); margin-bottom:16px; }
.section-head p{ font-size:16.5px; color:var(--steel); }
.section-navy .section-head p{ color:#B9C8D8; }
.section-foot-link{ margin-top:44px; }

/* ---------- Why us ---------- */
.why-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:2px; background:var(--line); }
.why-card{ background:var(--white); padding:38px 30px; }
.why-card .num{ font-family:var(--font-mono); color:var(--gold-dark); font-size:13px; margin-bottom:18px; display:block; }
.why-card h3{ font-size:19px; margin-bottom:10px; }
.why-card p{ color:var(--steel); font-size:14.5px; }

/* ---------- Services cards ---------- */
.services-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.service-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius);
  padding:34px 28px; position:relative; overflow:hidden;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.service-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-card); border-color:transparent; }
.service-card .tag{
  font-family:var(--font-mono); font-size:11px; color:var(--gold-dark);
  letter-spacing:.1em; text-transform:uppercase; margin-bottom:16px; display:block;
}
.service-card h3{ font-size:20px; margin-bottom:12px; }
.service-card p{ color:var(--steel); font-size:14.5px; margin-bottom:18px; }
.service-card .learn{ font-family:var(--font-mono); font-size:12.5px; color:var(--navy-700); font-weight:600; }
.service-card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:3px;
  background:var(--gold); transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.service-card:hover::before{ transform:scaleX(1); }

/* ---------- Projects ---------- */
.projects-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.project-card{
  background:var(--navy-800); color:var(--white);
  border-radius:var(--radius); overflow:hidden;
  box-shadow:var(--shadow-card);
}
.project-photo{ aspect-ratio:4/3; overflow:hidden; position:relative; }
.project-photo img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.project-card:hover .project-photo img{ transform:scale(1.08); }
.project-photo::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(8,26,46,0) 55%, rgba(8,26,46,.85) 100%);
}
.project-body{ padding:22px 24px 26px; }
.project-meta{ display:flex; gap:14px; font-family:var(--font-mono); font-size:11px; color:var(--gold-light); text-transform:uppercase; letter-spacing:.08em; margin-bottom:10px; flex-wrap:wrap; }
.project-body h3{ color:var(--white); font-size:19px; margin-bottom:8px; }
.project-body p{ color:#B9C8D8; font-size:14px; }

/* ---------- Testimonials ---------- */
.testi-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.testi-card{ background:var(--white); border:1px solid var(--line); padding:32px 28px; border-radius:var(--radius); }
.testi-card .quote-mark{ font-family:var(--font-display); font-size:40px; color:var(--gold); line-height:1; display:block; margin-bottom:10px; }
.testi-card p.quote{ font-size:15px; color:var(--ink); margin-bottom:22px; }
.testi-person{ display:flex; align-items:center; gap:12px; }
.testi-avatar{
  width:42px; height:42px; border-radius:50%; background:var(--navy-700);
  color:var(--gold-light); display:grid; place-items:center;
  font-family:var(--font-display); font-weight:700; font-size:15px;
}
.testi-person .name{ font-weight:600; font-size:14px; }
.testi-person .role{ font-size:12.5px; color:var(--steel); }

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(120deg, var(--navy-900), var(--navy-700));
  color:var(--white); border-radius:var(--radius);
  padding:56px 60px; display:flex; align-items:center; justify-content:space-between; gap:30px;
  flex-wrap:wrap;
}
.cta-banner h2{ color:var(--white); font-size:clamp(24px,3vw,32px); margin-bottom:10px; }
.cta-banner p{ color:#C7D6E4; }

/* ---------- About page ---------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.timeline{ border-left:2px solid var(--line); padding-left:28px; display:flex; flex-direction:column; gap:34px; }
.timeline-item .yr{ font-family:var(--font-mono); color:var(--gold-dark); font-size:13px; margin-bottom:6px; display:block; }
.timeline-item h4{ font-size:17px; margin-bottom:6px; }
.timeline-item p{ color:var(--steel); font-size:14.5px; }

.vmv-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:2px; background:var(--line); margin-top:20px; }
.vmv-card{ background:var(--white); padding:36px 30px; }
.vmv-card h3{ font-size:18px; margin-bottom:12px; color:var(--navy-700); font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.06em; }
.vmv-card p{ color:var(--steel); font-size:14.5px; }

.team-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.team-card{ text-align:left; }
.team-photo{
  aspect-ratio:1; background:var(--navy-700); border-radius:var(--radius); margin-bottom:16px;
  display:grid; place-items:center; color:var(--gold-light); font-family:var(--font-display);
  font-size:30px; font-weight:700; position:relative; overflow:hidden;
}
.team-card h4{ font-size:16px; margin-bottom:4px; }
.team-card .role{ font-family:var(--font-mono); font-size:12px; color:var(--gold-dark); text-transform:uppercase; letter-spacing:.06em; margin-bottom:8px; display:block; }
.team-card p{ font-size:13.5px; color:var(--steel); }

/* ---------- Values strip ---------- */
.values-strip{ display:grid; grid-template-columns:repeat(5,1fr); border-top:1px solid rgba(255,255,255,.15); border-bottom:1px solid rgba(255,255,255,.15); }
.values-strip div{ padding:26px 18px; border-right:1px solid rgba(255,255,255,.15); font-family:var(--font-mono); font-size:12.5px; letter-spacing:.06em; text-transform:uppercase; color:#CBD9E6; }
.values-strip div:last-child{ border-right:0; }
.values-strip div b{ display:block; color:var(--white); font-family:var(--font-display); font-size:15px; text-transform:none; letter-spacing:0; margin-bottom:4px; }

/* ---------- Services page detail rows ---------- */
.service-row{
  display:grid; grid-template-columns:.9fr 1.5fr; gap:50px; align-items:start;
  padding:50px 0; border-bottom:1px solid var(--line);
}
.service-row:last-child{ border-bottom:0; }
.service-row .row-index{ font-family:var(--font-mono); font-size:15px; color:var(--gold-dark); }
.service-row h3{ font-size:24px; margin:8px 0 16px; }
.service-row .row-copy{ color:var(--steel); font-size:15px; margin-bottom:18px; max-width:60ch; }
.checklist{ display:grid; grid-template-columns:1fr 1fr; gap:10px 24px; }
.checklist li{ font-size:14px; color:var(--ink); display:flex; gap:10px; align-items:flex-start; }
.checklist li::before{ content:"✓"; color:var(--gold-dark); font-weight:700; flex:0 0 auto; }

/* ---------- Projects filter (static labels) ---------- */
.filter-row{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:44px; }
.filter-pill{
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:.05em; text-transform:uppercase;
  padding:9px 18px; border:1px solid var(--line); border-radius:20px; color:var(--steel);
}
.filter-pill.active{ background:var(--navy-800); color:var(--white); border-color:var(--navy-800); }

/* ---------- Contact page ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.contact-info-card{ background:var(--navy-800); color:var(--white); padding:44px 38px; border-radius:var(--radius); }
.contact-info-card h3{ color:var(--white); font-size:20px; margin-bottom:22px; }
.info-row{ display:flex; gap:16px; padding:16px 0; border-bottom:1px solid rgba(255,255,255,.12); }
.info-row:last-of-type{ border-bottom:0; }
.info-row .ico{
  width:38px; height:38px; border:1px solid var(--gold); flex:0 0 auto; display:grid; place-items:center;
  color:var(--gold); font-family:var(--font-mono); font-size:14px;
}
.info-row .lbl{ font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.08em; color:#9FB4C8; margin-bottom:4px; }
.info-row .val{ font-size:14.5px; color:var(--white); }
.hours-table{ margin-top:26px; font-size:13.5px; }
.hours-table div{ display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px dashed rgba(255,255,255,.15); color:#CBD9E6; }

.form-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:40px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:18px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:13px; font-weight:600; color:var(--navy-800); }
.field input, .field select, .field textarea{
  font-family:var(--font-body); font-size:14.5px; padding:13px 14px;
  border:1px solid var(--line); border-radius:3px; background:var(--paper); color:var(--ink);
  transition:border-color .2s ease, background .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--navy-700); background:var(--white);
}
.field textarea{ resize:vertical; min-height:120px; }
.map-frame{
  margin-top:26px; border:1px solid var(--line); border-radius:var(--radius);
  aspect-ratio:16/7; background:
    repeating-linear-gradient(45deg, var(--paper), var(--paper) 10px, var(--white) 10px, var(--white) 20px);
  display:grid; place-items:center; color:var(--steel); font-family:var(--font-mono); font-size:13px; text-align:center; gap:6px;
}

/* ---------- Language switch (placeholder for i18n) ---------- */
.lang-switch{ display:flex; gap:2px; align-items:center; margin-left:8px; }
.lang-switch button{
  background:none; border:1px solid rgba(255,255,255,.25); color:#B9C8D8;
  font-family:var(--font-mono); font-size:11px; padding:5px 9px;
}
.lang-switch button.active{ background:var(--gold); color:var(--navy-900); border-color:var(--gold); }

/* ============ FOOTER ============ */
.site-footer{ background:var(--navy-900); color:#B9C8D8; padding:70px 0 26px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; margin-bottom:50px; }
.footer-grid h4{ color:var(--white); font-size:14px; text-transform:uppercase; letter-spacing:.08em; font-family:var(--font-mono); margin-bottom:20px; }
.footer-grid p{ font-size:14px; line-height:1.7; }
.footer-links li{ margin-bottom:11px; font-size:14px; }
.footer-links a:hover{ color:var(--gold-light); }
.footer-social{ display:flex; gap:10px; margin-top:20px; }
.footer-social a{
  width:36px; height:36px; border:1px solid rgba(255,255,255,.2); display:grid; place-items:center;
  font-family:var(--font-mono); font-size:12px; transition:background .2s ease, border-color .2s ease;
}
.footer-social a:hover{ background:var(--gold); border-color:var(--gold); color:var(--navy-900); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1); padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:12.5px; color:#7E93A8;
}

/* ============ WhatsApp floating button ============ */
.whatsapp-fab{
  position:fixed; right:24px; bottom:24px; z-index:150;
  width:58px; height:58px; border-radius:50%;
  background:#25D366; color:var(--white);
  display:grid; place-items:center; box-shadow:0 10px 24px -6px rgba(0,0,0,.4);
  transition:transform .2s ease;
}
.whatsapp-fab:hover{ transform:scale(1.08); }
.whatsapp-fab svg{ width:28px; height:28px; }

/* ============ Page hero (inner pages) ============ */
.page-hero{
  padding:150px 0 70px; color:var(--white); position:relative; overflow:hidden;
}
.page-hero .eyebrow{ margin-bottom:18px; }
.page-hero h1{ font-size:clamp(30px,4vw,46px); color:var(--white); margin-bottom:14px; }
.page-hero p{ color:#C7D6E4; max-width:60ch; font-size:16px; }
.crumb{ font-family:var(--font-mono); font-size:12px; color:#9FB4C8; margin-top:18px; }
.crumb span{ color:var(--gold-light); }

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-stats{ border-left:0; border-top:1px solid rgba(255,255,255,.18); padding-left:0; padding-top:24px; flex-direction:row; flex-wrap:wrap; }
  .hero-stat{ flex:1 1 45%; border-bottom:0; }
  .why-grid{ grid-template-columns:repeat(2,1fr); }
  .services-grid, .projects-grid, .testi-grid{ grid-template-columns:repeat(2,1fr); }
  .split{ grid-template-columns:1fr; }
  .vmv-grid{ grid-template-columns:1fr; }
  .team-grid{ grid-template-columns:repeat(2,1fr); }
  .service-row{ grid-template-columns:1fr; gap:18px; }
  .contact-grid{ grid-template-columns:1fr; }
  .values-strip{ grid-template-columns:repeat(3,1fr); }
  .values-strip div:nth-child(3){ border-right:0; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width:760px){
  .nav-links{
    position:fixed; inset:94px 0 0 0; background:var(--navy-900);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:20px 24px; transform:translateX(100%); transition:transform .3s ease;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ width:100%; padding:16px 0; border-bottom:1px solid rgba(255,255,255,.08); }
  .nav-cta{ margin-top:16px; text-align:center; }
  .nav-toggle{ display:block; }
  .hero{ padding:100px 0 60px; }
  .why-grid, .services-grid, .projects-grid, .testi-grid, .team-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .cta-banner{ padding:40px 26px; flex-direction:column; align-items:flex-start; }
  .values-strip{ grid-template-columns:1fr 1fr; }
  .values-strip div{ border-right:0; border-bottom:1px solid rgba(255,255,255,.15); }
  .footer-grid{ grid-template-columns:1fr; gap:34px; }
  .footer-bottom{ flex-direction:column; }
  .section{ padding:64px 0; }
}