:root{
  --bg:#FAFBFC;--bg2:#F1F5F9;--bg3:#E2E8F0;
  --navy:#0F172A;--blue:#2563EB;--blue-l:#3B82F6;
  --blue-glow:rgba(37,99,235,0.08);--red:#DC2626;--green:#16A34A;
  --gray:#475569;--gray-l:#CBD5E1;--white:#FFFFFF;
  --fd:"DM Serif Display",Georgia,serif;--fb:"DM Sans",system-ui,sans-serif
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--fb);background:var(--bg);color:var(--navy);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.fd{font-family:var(--fd);line-height:1.1}
.meta{font-size:12px;letter-spacing:0.12em;text-transform:uppercase;font-weight:600;color:var(--gray)}
.ebar{background:#DC2626;text-align:center;padding:10px 16px;font-size:13px;font-weight:600;color:#FFFFFF}
.ebar a{color:#FFFFFF;text-decoration:underline}

/* Scroll progress bar */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;background:var(--blue);z-index:100;transform-origin:left;transform:scaleX(0);animation:scroll-progress linear;animation-timeline:scroll()}
@keyframes scroll-progress{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* Nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:14px 32px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid color-mix(in srgb,var(--blue) 12%,transparent);box-shadow:inset 0 1px 0 color-mix(in srgb,var(--white) 40%,transparent)}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo .fd{font-size:22px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:12px;letter-spacing:0.12em;text-transform:uppercase;font-weight:600;color:var(--gray);transition:color 0.2s}
.nav-links a:hover{color:var(--blue)}

/* Buttons */
.btn-red{display:inline-flex;align-items:center;gap:8px;padding:16px 32px;background:#DC2626;color:#FFFFFF;border-radius:12px;font-size:16px;font-weight:700;border:none;cursor:pointer;transition:all 0.2s cubic-bezier(0.16,1,0.3,1);box-shadow:0 4px 16px color-mix(in srgb,var(--red) 20%,transparent)}
.btn-red:hover{background:#B91C1C;transform:translateY(-1px)}
.btn-red:active{transform:scale(0.97)}
.btn-b{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:#2563EB;color:#FFFFFF;border-radius:12px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all 0.2s cubic-bezier(0.16,1,0.3,1)}
.btn-b:hover{background:var(--blue-l);transform:translateY(-1px)}
.btn-b:active{transform:scale(0.97)}
.btn-o{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:transparent;color:var(--navy);border:1.5px solid var(--gray-l);border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all 0.2s cubic-bezier(0.16,1,0.3,1)}
.btn-o:hover{border-color:var(--blue);color:var(--blue)}
.btn-o:active{transform:scale(0.97)}

/* Service cards */
.svc{background:var(--white);border:1px solid rgba(0,0,0,0.06);border-radius:16px;padding:32px;transition:all 0.3s;box-shadow:0 1px 3px rgba(0,0,0,0.04);position:relative;overflow:hidden}
.svc:hover{transform:translateY(-4px);box-shadow:0 8px 32px color-mix(in srgb,var(--blue) 8%,transparent);border-color:var(--blue)}
.svc:active{transform:scale(0.98)}
.svc-num{font-family:var(--fd);font-size:42px;color:var(--gray);line-height:1;margin-bottom:12px}
.svc h3{font-family:var(--fd);font-size:22px;margin-bottom:8px;color:var(--navy)}
.svc p{font-size:14px;color:var(--gray);line-height:1.7}

/* Review cards */
.rev{background:var(--white);border-radius:16px;padding:28px;box-shadow:0 1px 3px rgba(0,0,0,0.04);border:1px solid rgba(0,0,0,0.04)}

/* Grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}

/* Zigzag layout */
.zigzag{display:flex;flex-direction:column;gap:48px}
.zigzag-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.zigzag-item:nth-child(even){direction:rtl}
.zigzag-item:nth-child(even) > *{direction:ltr}
.zigzag-feature{padding:32px;border-left:3px solid var(--blue);background:var(--white);border-radius:0 12px 12px 0;box-shadow:0 1px 3px rgba(0,0,0,0.04)}
.zigzag-visual{height:200px;border-radius:16px;background:linear-gradient(135deg,color-mix(in srgb,var(--blue) 8%,var(--bg2)),var(--bg2))}
@media(max-width:768px){.zigzag-item{grid-template-columns:1fr;gap:24px}.zigzag-item:nth-child(even){direction:ltr}}

/* Timeline */
.timeline{display:flex;align-items:flex-start;justify-content:space-between;position:relative;padding:0 20px}
.timeline::before{content:"";position:absolute;top:24px;left:40px;right:40px;height:3px;background:linear-gradient(90deg,var(--blue),color-mix(in srgb,var(--blue) 30%,transparent));border-radius:2px}
.timeline-step{text-align:center;position:relative;z-index:1;flex:1;max-width:220px}
.timeline-num{width:48px;height:48px;border-radius:50%;background:var(--blue);color:var(--white);font-family:var(--fd);font-size:20px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;border:3px solid var(--bg);box-shadow:0 0 0 4px color-mix(in srgb,var(--blue) 15%,transparent)}
.timeline-step h3{font-family:var(--fd);font-size:18px;margin-bottom:8px;color:var(--navy)}
.timeline-step p{font-size:14px;color:var(--gray)}
@media(max-width:768px){.timeline{flex-direction:column;gap:32px}.timeline::before{left:24px;top:24px;bottom:24px;width:3px;height:auto;right:auto}}

/* Sections */
.section{padding:80px 32px}
.section-narrow{max-width:900px;margin:0 auto}
.section-wide{max-width:1000px;margin:0 auto}

/* Sticky bar */
.sticky-bar{position:fixed;bottom:0;left:0;right:0;z-index:50;background:var(--white);padding:12px 16px;display:flex;align-items:center;justify-content:center;gap:12px;box-shadow:0 -2px 16px rgba(0,0,0,0.08);transform:translateY(100%);transition:transform 0.4s}
.sticky-bar.show{transform:translateY(0)}
.sticky-bar a{border-radius:12px;font-weight:700}

/* Form */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--gray);text-transform:uppercase;letter-spacing:0.05em}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:14px 16px;background:var(--bg2);border:1px solid var(--gray-l);border-radius:12px;color:var(--navy);font-family:var(--fb);font-size:16px;transition:border 0.2s,box-shadow 0.2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 12%,transparent)}
.form-group textarea{resize:vertical;min-height:120px}

/* Gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.gallery-item{background:var(--white);border-radius:16px;overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,0.04);transition:all 0.3s}
.gallery-item:hover{transform:translateY(-2px);box-shadow:0 8px 24px color-mix(in srgb,var(--blue) 8%,transparent)}
.gallery-item:active{transform:scale(0.98)}
.gallery-item img{width:100%;height:240px;object-fit:cover}
.gallery-item .gallery-body{padding:20px}
.gallery-item h3{font-family:var(--fd);font-size:18px;margin-bottom:6px}
.gallery-item p{font-size:13px;color:var(--gray)}

/* Team */
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.team-card{background:var(--white);border-radius:16px;padding:32px;text-align:center;box-shadow:0 1px 3px rgba(0,0,0,0.04)}
.team-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid var(--blue)}
.team-card h3{font-family:var(--fd);font-size:18px;margin-bottom:4px}
.team-card .role{font-size:13px;color:var(--blue);margin-bottom:8px}
.team-card p{font-size:13px;color:var(--gray);line-height:1.6}

/* Steps — legacy fallback */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px}
.step{text-align:center}
.step .step-num{font-family:var(--fd);font-size:42px;color:var(--gray);margin-bottom:12px}
.step h3{font-family:var(--fd);font-size:18px;margin-bottom:8px;color:var(--navy)}
.step p{font-size:14px;color:var(--gray)}

/* Badges */
.badge-grid{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.badge{background:var(--white);border:1px solid var(--gray-l);border-radius:12px;padding:16px 28px;text-align:center}
.badge .badge-label{font-size:14px;color:var(--blue);font-weight:700}
.badge .badge-num{font-size:13px;color:var(--gray);margin-top:4px}

/* Area pills */
.area-pills{display:flex;flex-wrap:wrap;gap:10px}
.area-pills span{padding:8px 20px;border:1px solid var(--gray-l);border-radius:12px;font-size:14px;font-weight:600}

/* Footer */
.footer{padding:20px 32px;border-top:1px solid var(--gray-l);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}

/* Lang toggle */
.lang-toggle{padding:6px 14px;border:1px solid var(--gray-l);border-radius:8px;font-size:12px;font-weight:600;color:var(--blue);transition:all 0.2s}
.lang-toggle:hover{border-color:var(--blue)}

/* Scroll reveal animations */
@keyframes fade-up{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
.svc,.rev,.gallery-item,.team-card{animation:fade-up linear both;animation-timeline:view();animation-range:entry 0% cover 40%}

/* Hero background */
.hero-bg{position:relative}
.hero-bg::after{content:"";position:absolute;top:0;right:0;bottom:0;width:50%;background:url('https://picsum.photos/seed/rr-plumbing-hero-bg/800/600') center/cover;opacity:0.15;pointer-events:none}
@media(max-width:768px){.hero-bg::after{display:none}}

/* Responsive */
@media(max-width:768px){
  .hide-m{display:none!important}
  .grid-2{grid-template-columns:1fr!important}
  .grid-3{grid-template-columns:1fr!important}
  .grid-4{grid-template-columns:repeat(2,1fr)!important}
  .nav{padding:12px 16px}
  .section{padding:60px 16px}
  .gallery-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
}

/* Skip link */
.skip-link{position:absolute;top:-100px;left:0;background:#000;color:#fff;padding:12px 24px;z-index:9999;transition:top 0.2s}
.skip-link:focus{top:0}

/* Focus visible */
*:focus-visible{outline:3px solid currentColor;outline-offset:2px;border-radius:2px}

/* Reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important;scroll-behavior:auto!important}
}

/* Dark mode */
@media(prefers-color-scheme:dark){
  :root{
    --bg:#0F172A;--bg2:#1E293B;--bg3:#334155;
    --navy:#F1F5F9;--blue:#3B82F6;--blue-l:#60A5FA;
    --red:#EF4444;--green:#22C55E;
    --gray:#94A3B8;--gray-l:#475569;--white:#F1F5F9
  }
  body{background:var(--bg);color:var(--navy)}
  .svc{background:var(--bg2);border-color:rgba(255,255,255,0.06);box-shadow:0 1px 3px rgba(0,0,0,0.2)}
  .svc h3{color:var(--navy)}
  .rev{background:var(--bg2);border-color:rgba(255,255,255,0.04);box-shadow:0 1px 3px rgba(0,0,0,0.2)}
  .gallery-item{background:var(--bg2);box-shadow:0 1px 3px rgba(0,0,0,0.2)}
  .team-card{background:var(--bg2);box-shadow:0 1px 3px rgba(0,0,0,0.2)}
  .nav{background:color-mix(in srgb,var(--bg) 88%,transparent)}
  .sticky-bar{background:var(--bg2);box-shadow:0 -2px 16px rgba(0,0,0,0.3)}
  .badge{background:var(--bg2);border-color:var(--gray-l)}
  .zigzag-feature{background:var(--bg2)}
  .zigzag-visual{background:linear-gradient(135deg,color-mix(in srgb,var(--blue) 8%,var(--bg2)),var(--bg3))}
  .form-group input,.form-group select,.form-group textarea{background:var(--bg3);color:var(--navy)}
  .footer{border-top-color:var(--gray-l)}
  .zigzag-feature .fd{color:#60A5FA !important}
}