:root{--navy:#102431;--orange:#e66b2c;--orange2:#f28a50;--steel:#647680;--light:#f4f6f7;--white:#fff;--ink:#1d2a31;--muted:#68777f;--line:#dce3e6;--shadow:0 18px 48px rgba(16,36,49,.13);--radius:20px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);line-height:1.65;background:#fff}a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}.container{width:min(var(--max),calc(100% - 36px));margin:auto}
.topbar{background:#081821;color:#d7e0e4;padding:8px 0;font-size:.85rem}.topbar .container{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);border-bottom:1px solid rgba(16,36,49,.09)}.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{font-weight:900;letter-spacing:.04em;color:var(--navy);font-size:1.25rem}.brand span{color:var(--orange)}.brand small{display:block;font-size:.61rem;letter-spacing:.17em;color:var(--steel)}.nav-links{display:flex;gap:23px;align-items:center;font-size:.92rem;font-weight:750}.nav-links a:hover{color:var(--orange)}.menu-toggle{display:none;background:none;border:0;font-size:1.6rem}.btn{display:inline-flex;justify-content:center;align-items:center;padding:13px 20px;border-radius:8px;border:1px solid transparent;font-weight:850;cursor:pointer;transition:.2s}.btn-primary{background:var(--orange);color:#fff}.btn-primary:hover{background:#cf5921;transform:translateY(-2px)}.btn-dark{background:var(--navy);color:#fff}.btn-outline{border-color:#fff;color:#fff}
.hero{color:#fff;padding:112px 0 96px;background:linear-gradient(90deg,rgba(8,25,35,.88),rgba(8,25,35,.58)),url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?auto=format&fit=crop&w=1800&q=85') center/cover no-repeat}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.73rem;font-weight:900;color:var(--orange2);margin-bottom:12px}h1,h2,h3{line-height:1.12;margin-top:0;color:var(--navy)}.hero h1{color:#fff;font-size:clamp(3rem,6vw,5.3rem);margin-bottom:20px}.hero p{font-size:1.08rem;color:#e0e8eb;max-width:680px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.trust{display:flex;gap:25px;flex-wrap:wrap;margin-top:32px}.trust strong{display:block;font-size:1.5rem}.trust span{font-size:.82rem;color:#c6d1d6}
.quote-mini{background:#fff;color:var(--ink);padding:27px;border-radius:18px;box-shadow:var(--shadow)}.quote-mini h3{font-size:1.5rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}label{font-size:.84rem;font-weight:800}input,select,textarea{width:100%;padding:12px 13px;border:1px solid #ccd6da;border-radius:8px;background:#fff}textarea{min-height:120px;resize:vertical}.notice{display:none;margin-top:12px;padding:11px 13px;background:#eaf5eb;color:#285e31;border-radius:8px}
.section{padding:84px 0}.section-soft{background:var(--light)}.section-dark{background:var(--navy);color:#fff}.section-dark h2,.section-dark h3{color:#fff}.section-heading{max-width:760px;margin-bottom:40px}.section-heading h2{font-size:clamp(2.1rem,4vw,3.5rem);margin-bottom:12px}.section-heading p{color:var(--muted)}.section-dark .section-heading p{color:#c8d4da}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 28px rgba(16,36,49,.05)}.card-body{padding:25px}.service-icon{width:50px;height:50px;background:#fff1e9;color:var(--orange);border-radius:12px;display:grid;place-items:center;font-weight:900;margin-bottom:18px}.card h3{font-size:1.35rem}.card p{color:var(--muted)}
.project-img{height:260px;background-size:cover;background-position:center}.p1{background-image:url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1100&q=85')}.p2{background-image:url('https://images.unsplash.com/photo-1484154218962-a197022b5858?auto=format&fit=crop&w=1100&q=85')}.p3{background-image:url('https://images.unsplash.com/photo-1600607687920-4e2a09cf159d?auto=format&fit=crop&w=1100&q=85')}
.before-after{position:relative;height:360px;border-radius:20px;overflow:hidden;background-size:cover;background-position:center}.ba1{background-image:linear-gradient(90deg,rgba(16,36,49,.08) 50%,rgba(230,107,44,.08) 50%),url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1400&q=85')}.ba2{background-image:linear-gradient(90deg,rgba(16,36,49,.08) 50%,rgba(230,107,44,.08) 50%),url('https://images.unsplash.com/photo-1600566753086-00f18fb6b3ea?auto=format&fit=crop&w=1400&q=85')}.ba-label{position:absolute;top:18px;padding:8px 12px;background:rgba(16,36,49,.88);color:#fff;border-radius:7px;font-weight:800;font-size:.8rem}.ba-label.before{left:18px}.ba-label.after{right:18px;background:rgba(230,107,44,.92)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.team-img{min-height:440px;border-radius:22px;background:url('https://images.unsplash.com/photo-1581578731548-c64695cc6952?auto=format&fit=crop&w=1200&q=85') center/cover no-repeat}.checks{list-style:none;padding:0;display:grid;gap:12px}.checks li:before{content:"✓";color:var(--orange);font-weight:900;margin-right:10px}
.area{padding:23px;border:1px solid var(--line);border-radius:14px;background:#fff}.area strong{display:block;color:var(--navy);font-size:1.1rem}.area span{color:var(--muted);font-size:.9rem}.testimonial{padding:27px;border:1px solid var(--line);border-radius:18px;background:#fff}.stars{color:var(--orange)}.testimonial p{font-size:1.05rem}.page-hero{padding:78px 0;background:linear-gradient(120deg,#0d2837,#17465a);color:#fff}.page-hero h1{color:#fff;font-size:clamp(2.8rem,5vw,4.6rem);margin-bottom:12px}.page-hero p{color:#d5e1e6;max-width:740px}
.cta{padding:40px;border-radius:20px;background:var(--orange);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h3{color:#fff;font-size:1.9rem;margin-bottom:6px}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px}.form-card{background:#fff;padding:31px;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.footer{background:#081820;color:#c7d3d8;padding:58px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}.footer h4{color:#fff}.footer a{display:block;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:35px;padding-top:18px;font-size:.84rem}
@media(max-width:950px){.nav-links{display:none;position:absolute;left:18px;right:18px;top:84px;background:#fff;padding:22px;border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}.nav-links.open{display:flex}.menu-toggle{display:block}.nav>.btn{display:none}.hero-grid,.split,.contact-grid,.footer-grid{grid-template-columns:1fr}.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.section{padding:64px 0}.grid-3,.grid-4,.grid-2,.form-grid{grid-template-columns:1fr}.hero{padding:78px 0}.topbar span:last-child{display:none}.cta{flex-direction:column;align-items:flex-start}}


/* Interactive portfolio upgrades */
.project-filters{
  display:flex;gap:10px;flex-wrap:wrap;margin:0 0 28px
}
.project-filter{
  border:1px solid var(--line);background:#fff;color:var(--navy);
  padding:10px 15px;border-radius:999px;font-weight:850;cursor:pointer
}
.project-filter.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.project-card.hidden{display:none}

.ba-slider{
  position:relative;height:380px;border-radius:20px;overflow:hidden;
  background:#d9e0e3;box-shadow:var(--shadow)
}
.ba-slider .after-layer,
.ba-slider .before-layer{
  position:absolute;inset:0;background-size:cover;background-position:center
}
.ba-slider .before-layer{
  width:50%;overflow:hidden;border-right:3px solid #fff;z-index:2
}
.ba-slider .before-layer::after{
  content:"BEFORE";position:absolute;top:18px;left:18px;background:rgba(16,36,49,.88);
  color:#fff;padding:7px 10px;border-radius:7px;font-size:.76rem;font-weight:900
}
.ba-slider .after-layer::after{
  content:"AFTER";position:absolute;top:18px;right:18px;background:rgba(230,107,44,.94);
  color:#fff;padding:7px 10px;border-radius:7px;font-size:.76rem;font-weight:900
}
.ba-slider input[type="range"]{
  position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;z-index:5
}
.ba-handle{
  position:absolute;left:50%;top:0;bottom:0;width:3px;background:#fff;z-index:4;
  transform:translateX(-50%);pointer-events:none
}
.ba-handle::after{
  content:"↔";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:44px;height:44px;border-radius:50%;background:#fff;color:var(--navy);
  display:grid;place-items:center;font-weight:900;box-shadow:0 8px 20px rgba(0,0,0,.18)
}

.stepper{display:flex;gap:8px;margin-bottom:24px}
.step-dot{
  flex:1;height:7px;border-radius:999px;background:#e4e9eb
}
.step-dot.active{background:var(--orange)}
.quote-step{display:none}
.quote-step.active{display:block}
.form-actions{display:flex;justify-content:space-between;gap:12px;margin-top:18px}
.form-actions .btn{min-width:120px}

.estimator{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;
  box-shadow:var(--shadow)
}
.estimate-total{
  margin-top:20px;padding:20px;border-radius:14px;background:var(--navy);color:#fff
}
.estimate-total strong{
  display:block;font-size:2rem;color:#fff
}
.range-row{display:grid;gap:8px;margin:18px 0}
.range-value{font-weight:850;color:var(--orange)}
input[type="range"].visible-range{
  accent-color:var(--orange)
}
@media(max-width:650px){
  .form-actions{flex-direction:column}
  .form-actions .btn{width:100%}
}