/* NYC Plumbing, Heating, and Drain Cleaning - concept preview */
:root{
  --brand:#216da1; --brand-deep:#144a73; --brand-ink:#0f3a5c;
  --ink:#23272b; --body:#4a4e52; --paper:#f4f8fc; --card:#fff;
  --charcoal:#333; --copper:#b87333; --emergency:#e85d1a; --emergency-deep:#c74d13;
  --line:#d7e3ee; --radius:12px;
  --font-d:"Zilla Slab",Georgia,serif; --font-b:"Inter",system-ui,sans-serif;
  --shadow:0 10px 30px rgba(20,60,100,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);color:var(--body);background:var(--paper);font-size:1.05rem;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--font-d);color:var(--ink);line-height:1.12;font-weight:600}
h1{font-size:clamp(2.4rem,5vw,3.4rem);letter-spacing:-.01em}
h2{font-size:clamp(1.7rem,3.4vw,2.2rem);margin-bottom:.6rem}
a{color:var(--brand)}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:.7rem}
.section-sub{max-width:640px;margin-bottom:2.2rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:.98rem;
  padding:.75rem 1.4rem;border-radius:999px;text-decoration:none;border:2px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;cursor:pointer;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-big{padding:.95rem 1.9rem;font-size:1.05rem}
.btn-call{background:var(--brand);color:#fff}
.btn-call:hover{background:var(--brand-deep)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand);color:#fff}
.btn-emergency{background:var(--emergency);color:#fff;box-shadow:0 8px 22px rgba(232,93,26,.35)}
.btn-emergency:hover{background:var(--emergency-deep)}
.btn-primary{background:var(--brand);color:#fff;border:none;width:100%;justify-content:center}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .25s ease,box-shadow .25s ease,padding .25s ease;padding:14px 0}
.site-header.scrolled{background:#fff;box-shadow:0 4px 18px rgba(20,60,100,.12);padding:8px 0}
.header-inner{max-width:1240px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:2rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.brand-text{font-family:var(--font-d);font-weight:700;color:#fff;font-size:1.02rem;line-height:1.25;transition:color .25s}
.brand-line2{display:block;font-size:.82rem;font-weight:500;opacity:.85}
.site-header.scrolled .brand-text{color:var(--ink)}
.site-nav{display:flex;gap:1.6rem;margin-left:auto}
.site-nav a{color:#fff;text-decoration:none;font-weight:500;font-size:.95rem;opacity:.92;transition:color .2s,opacity .2s}
.site-header.scrolled .site-nav a{color:var(--ink)}
.site-nav a:hover{color:var(--copper);opacity:1}
.header-ctas{display:flex;gap:.7rem}
.site-header:not(.scrolled) .btn-outline{border-color:#fff;color:#fff}
.site-header:not(.scrolled) .btn-outline:hover{background:#fff;color:var(--brand)}
.menu-btn{display:none;background:none;border:none;color:#fff;align-items:center;gap:.5rem;cursor:pointer;font-family:var(--font-b);font-size:1rem;font-weight:600}
.site-header.scrolled .menu-btn{color:var(--ink)}
.menu-lines{display:flex;flex-direction:column;gap:5px}
.menu-lines span{display:block;width:26px;height:2px;background:currentColor;border-radius:2px;transition:transform .25s,opacity .25s}
.menu-btn[aria-expanded="true"] .menu-lines span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-lines span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] .menu-lines span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile menu */
.mobile-menu{position:fixed;inset:0;z-index:49;background:var(--brand-ink);display:flex;flex-direction:column;
  justify-content:center;align-items:center;gap:1.1rem;opacity:0;pointer-events:none;transition:opacity .3s ease}
.mobile-menu.open{opacity:1;pointer-events:auto}
.mobile-menu nav{display:flex;flex-direction:column;gap:.4rem;text-align:center}
.mobile-menu nav a{font-family:var(--font-d);font-size:2.2rem;color:#fff;text-decoration:none;font-weight:600;
  opacity:0;transform:translateY(14px);transition:opacity .35s ease,transform .35s ease}
.mobile-menu.open nav a{opacity:1;transform:none}
.mobile-menu.open nav a:nth-child(2){transition-delay:.06s}.mobile-menu.open nav a:nth-child(3){transition-delay:.12s}
.mobile-menu.open nav a:nth-child(4){transition-delay:.18s}.mobile-menu.open nav a:nth-child(5){transition-delay:.24s}
.mobile-note{color:#bcd3e6;font-size:.9rem;margin-top:1rem}

/* Hero */
.hero{background:linear-gradient(160deg,#123a5e 0%,#1b4f7e 55%,#216da1 100%);color:#fff;padding:150px 0 90px;overflow:hidden;position:relative}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 78% 40%,rgba(184,115,51,.22),transparent 70%);pointer-events:none}
.hero-inner{max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:center;position:relative;z-index:1}
.hero .eyebrow{color:#ffd9a8}
.hero h1{color:#fff;margin-bottom:1.1rem}
.hero .lede{color:#d8e7f5;font-size:1.12rem;max-width:34rem;margin-bottom:1.8rem}
.hero-ctas{display:flex;gap:.9rem;flex-wrap:wrap;margin-bottom:1.8rem}
.trust-strip{list-style:none;display:flex;gap:1.4rem;flex-wrap:wrap;color:#cfe2f3;font-size:.95rem}
.trust-strip .stars{color:#ffcf5c;letter-spacing:.1em}
.trust-strip strong{color:#fff}

/* 3D stage */
.flow-stage{position:relative;background:rgba(10,22,34,.55);border:1px solid rgba(255,255,255,.14);
  border-radius:20px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.35);backdrop-filter:blur(2px)}
#flowCanvas{display:block;width:100%;height:420px;cursor:grab;touch-action:pan-y}
#flowCanvas:active{cursor:grabbing}
.flow-fallback{padding:2rem;text-align:center;color:#cfe2f3}
.flow-fallback svg{max-width:340px;margin:0 auto 1rem}
.flow-caption{position:absolute;left:0;right:0;bottom:10px;text-align:center;color:#9fb9d2;font-size:.78rem;letter-spacing:.06em;pointer-events:none}

/* Stats */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats-inner{max-width:1140px;margin:0 auto;padding:2.2rem 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;text-align:center}
.stat-num{font-family:var(--font-d);font-size:2.4rem;font-weight:700;color:var(--brand);display:block}
.stat-label{font-size:.88rem;color:var(--body)}
.stat + .stat{border-left:1px solid var(--line)}

/* Services */
.services{padding:5.5rem 0;background:var(--paper)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.service-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  border:1px solid var(--line);transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(20,60,100,.16)}
.service-card img{height:190px;width:100%;object-fit:cover}
.service-body{padding:1.5rem;display:flex;flex-direction:column;gap:.6rem;flex:1}
.service-body h3{font-size:1.3rem}
.service-body p{font-size:.98rem}
.service-body ul{list-style:none;margin-top:.3rem;display:flex;flex-direction:column;gap:.3rem}
.service-body li{font-size:.9rem;padding-left:1.2rem;position:relative;color:var(--body)}
.service-body li::before{content:"";position:absolute;left:0;top:.62em;width:.55rem;height:.55rem;border-radius:50%;background:var(--copper)}

/* Lazer */
.lazer{background:#fff;padding:5.5rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.lazer-inner{display:grid;grid-template-columns:1.4fr .8fr;gap:3.5rem;align-items:start}
.lazer-copy blockquote{border-left:4px solid var(--copper);padding:.4rem 0 .4rem 1.4rem;margin:1.6rem 0;
  font-family:var(--font-d);font-size:1.35rem;color:var(--ink);line-height:1.45}
.lazer-copy p{margin-bottom:1rem;max-width:38rem}
.warranty-line{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem 1.3rem}
.lazer-facts ul{list-style:none;background:var(--brand-ink);border-radius:16px;padding:1.8rem;color:#fff;display:flex;flex-direction:column;gap:1.2rem}
.lazer-facts li strong{display:block;font-family:var(--font-d);font-size:1.15rem}
.lazer-facts li span{font-size:.85rem;color:#a9c4dd}

/* Steps */
.steps{padding:5.5rem 0}
.steps-list{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;counter-reset:step}
.steps-list li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:2rem 1.6rem;position:relative;box-shadow:var(--shadow)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:2.6rem;height:2.6rem;border-radius:50%;
  background:var(--brand);color:#fff;font-family:var(--font-d);font-weight:700;font-size:1.25rem;margin-bottom:1rem}
.steps-list h3{margin-bottom:.5rem;font-size:1.3rem}

/* Reviews */
.reviews{background:var(--brand-ink);color:#fff;padding:5.5rem 0}
.reviews h2{color:#fff}
.reviews .section-sub{color:#bcd3e6}
.reviews .eyebrow{color:#ffd9a8}
.carousel{position:relative;max-width:760px;margin:0 auto;overflow:hidden}
.carousel-track{display:flex;transition:transform .5s ease}
.review-slide{min-width:100%;padding:0 .5rem;text-align:center}
.review-slide .stars{color:#ffcf5c;font-size:1.4rem;letter-spacing:.15em;margin-bottom:1rem}
.review-slide blockquote{font-family:var(--font-d);font-size:1.3rem;line-height:1.5;color:#fff;margin-bottom:1.2rem}
.review-slide figcaption{color:#9fb9d2;font-size:.92rem}
.carousel-controls{display:flex;align-items:center;justify-content:center;gap:1rem;margin-top:1.8rem}
.car-btn{background:transparent;border:2px solid rgba(255,255,255,.4);color:#fff;width:2.6rem;height:2.6rem;border-radius:50%;cursor:pointer;font-size:1.1rem;transition:border-color .2s,background .2s}
.car-btn:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.car-dots{display:flex;gap:.55rem}
.car-dots button{width:.7rem;height:.7rem;border-radius:50%;border:none;background:rgba(255,255,255,.3);cursor:pointer;padding:0}
.car-dots button.active{background:#ffcf5c}

/* Areas */
.areas{padding:4.5rem 0;text-align:center;background:var(--paper)}
.areas h2{max-width:34rem;margin:0 auto 1.6rem}
.area-chips{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.area-chips span{background:#fff;border:2px solid var(--brand);color:var(--brand);font-weight:600;
  padding:.6rem 1.6rem;border-radius:999px;font-size:1.05rem}

/* Emergency */
.emergency{background:var(--charcoal);color:#fff;padding:3.6rem 0}
.emergency-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.emergency h2{color:#fff;margin-bottom:.4rem}
.emergency p{color:#cfcfcf}

/* Request */
.request{padding:5.5rem 0;background:#fff}
.request-inner{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start}
.demo-note{background:#fff8f0;border:1px dashed var(--emergency);border-radius:var(--radius);padding:1rem 1.2rem;font-size:.92rem;margin-top:1.2rem}
.request-form{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:2rem;display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.request-form label{display:flex;flex-direction:column;gap:.35rem;font-size:.88rem;font-weight:600;color:var(--ink)}
.request-form label.full,.request-form .full{grid-column:1/-1}
.request-form input,.request-form select{font:inherit;font-weight:400;padding:.75rem .9rem;border:1.5px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.request-form input:focus,.request-form select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(33,109,161,.15)}
.form-confirm{grid-column:1/-1;background:#e8f5e9;border:1px solid #a5d6a7;color:#2e7d32;border-radius:8px;padding:1rem;font-size:.95rem}

/* Footer */
.site-footer{background:#1c1e20;color:#cfd4d8;padding:3.5rem 0 2rem}
.footer-inner{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-bottom:2rem}
.footer-brand .brand-text{color:#fff;font-size:1.1rem}
.footer-brand p{margin:.5rem 0;font-size:.95rem}
.footer-brand a{color:#8fc3ec;text-decoration:none}
.payments{font-size:.85rem;color:#9aa0a5}
.footer-links{display:flex;flex-direction:column;gap:.5rem}
.footer-links a{color:#cfd4d8;text-decoration:none}
.footer-links a:hover{color:#fff}
.concept-badge{border-top:1px solid #3a3d40;padding-top:1.4rem;font-size:.82rem;color:#9aa0a5}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* Responsive */
@media (max-width:1020px){
  .site-nav,.header-ctas{display:none}
  .menu-btn{display:inline-flex;margin-left:auto}
  .hero-inner{grid-template-columns:1fr;gap:2.5rem}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .lazer-inner,.request-inner{grid-template-columns:1fr}
  .steps-list{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:repeat(2,1fr);gap:1.6rem}
  .stat + .stat{border-left:none}
}
@media (max-width:640px){
  .service-grid{grid-template-columns:1fr}
  .request-form{grid-template-columns:1fr}
  #flowCanvas{height:320px}
  .hero{padding:130px 0 70px}
  .emergency-inner{flex-direction:column;align-items:flex-start}
}