/* ============================================================
   Air-Tek — Paris, TX
   Palette: graphite ground, cool (AC) + ember (heat) duality
   ============================================================ */

:root{
  --ink:#0B0E13;
  --ink-2:#12161E;
  --ink-3:#1A202B;
  --line:#242C39;

  --paper:#F6F7F9;
  --paper-2:#ECEFF3;
  --paper-line:#DDE2E9;

  --text:#0B0E13;
  --text-soft:#4A5464;
  --text-onink:#EDF1F6;
  --text-onink-soft:#9BA8BB;

  --cool:#3FC1E0;
  --cool-deep:#1E8FC0;
  --cool-glow:rgba(63,193,224,.16);
  --warm:#CE1B22;
  --warm-soft:#F0454A;
  --warm-glow:rgba(206,27,34,.13);

  --r-sm:8px;
  --r:14px;
  --r-lg:22px;

  --wrap:1180px;
  --pad:clamp(20px,5vw,40px);

  --sans:'Archivo','Archivo Expanded',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--paper);
  color:var(--text);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.04}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.section{padding:clamp(72px,10vw,132px) 0}

.skip{position:absolute;left:-9999px;top:0;background:var(--warm);color:#fff;padding:12px 18px;z-index:200}
.skip:focus{left:12px;top:12px}

:focus-visible{outline:2px solid var(--cool);outline-offset:3px;border-radius:4px}

/* ---------- Buttons ---------- */
.btn{
  --btn-bg:var(--warm);
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--btn-bg);
  color:#fff;
  font-weight:700;font-size:15px;letter-spacing:-.01em;
  padding:13px 22px;
  border:0;border-radius:100px;
  cursor:pointer;
  position:relative;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .2s;
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset, 0 6px 18px rgba(206,27,34,.28);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,.2) inset,0 12px 28px rgba(206,27,34,.34)}
.btn:active{transform:translateY(0)}
.btn svg{width:17px;height:17px;flex:none}
.btn-lg{padding:17px 30px;font-size:16.5px}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-ghost{
  background:transparent;color:var(--text-onink);
  box-shadow:inset 0 0 0 1.5px rgba(237,241,246,.28);
}
.btn-ghost:hover{background:rgba(237,241,246,.07);box-shadow:inset 0 0 0 1.5px rgba(237,241,246,.5)}

/* ---------- Alert bar ---------- */
.alertbar{
  background:var(--ink);
  color:var(--text-onink-soft);
  display:flex;align-items:center;justify-content:center;gap:12px;
  padding:9px var(--pad);
  font-size:13.5px;
  flex-wrap:wrap;
  border-bottom:1px solid var(--line);
}
.alertbar strong{color:var(--text-onink);font-weight:700}
.alertbar a{color:var(--cool);font-weight:700;border-bottom:1px solid rgba(63,193,224,.35);padding-bottom:1px}
.alertbar a:hover{border-color:var(--cool)}
.pulse{
  width:7px;height:7px;border-radius:50%;background:var(--warm);flex:none;
  box-shadow:0 0 0 0 rgba(206,27,34,.7);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(206,27,34,.6)}
  70%{box-shadow:0 0 0 9px rgba(206,27,34,0)}
  100%{box-shadow:0 0 0 0 rgba(206,27,34,0)}
}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(11,14,19,.93);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s, border-color .3s;
}
.nav.stuck{background:rgba(11,14,19,.97);border-bottom-color:var(--line)}
.nav-in{display:flex;align-items:center;gap:28px;height:80px}

.brand{display:flex;align-items:center;flex:none;line-height:0}
.logo-word{height:68px;width:auto;display:block;transition:transform .3s var(--ease)}
.brand:hover .logo-word{transform:scale(1.03)}
.logo-full{width:250px;max-width:100%;height:auto;display:block}

.links{display:flex;gap:26px;margin-left:auto}
.links a{
  color:var(--text-onink-soft);font-size:14.5px;font-weight:600;letter-spacing:-.01em;
  position:relative;padding:4px 0;transition:color .2s;
}
.links a::after{
  content:'';position:absolute;left:0;bottom:0;height:1.5px;width:0;
  background:var(--cool);transition:width .28s var(--ease);
}
.links a:hover{color:var(--text-onink)}
.links a:hover::after{width:100%}

.nav-cta{display:flex;align-items:center;gap:14px;margin-left:auto}
.links + .nav-cta{margin-left:0}
.phone{
  display:flex;align-items:center;gap:7px;
  color:var(--text-onink);font-weight:700;font-size:15px;letter-spacing:-.02em;
  transition:color .2s;
}
.phone svg{width:15px;height:15px;color:var(--cool)}
.phone:hover{color:var(--cool)}

.burger{display:none;flex-direction:column;gap:4.5px;background:0;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:20px;height:1.8px;background:var(--text-onink);border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.3px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.3px) rotate(-45deg)}

.mobile{
  display:none;flex-direction:column;gap:2px;
  padding:0 var(--pad) 0;
  background:rgba(11,14,19,.98);
  border-top:1px solid var(--line);
  max-height:0;overflow:hidden;
  transition:max-height .38s var(--ease), padding .38s var(--ease);
}
.mobile.open{max-height:400px;padding-bottom:22px;padding-top:12px}
.mobile a{color:var(--text-onink-soft);font-weight:600;font-size:16px;padding:12px 0;border-bottom:1px solid rgba(36,44,57,.6)}
.mobile a:last-child{border:0;margin-top:14px;color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:var(--ink);
  color:var(--text-onink);
  padding:clamp(76px,11vw,128px) 0 clamp(84px,10vw,120px);
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{position:absolute;inset:0;z-index:-1;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55}
.orb-cool{
  width:min(58vw,720px);aspect-ratio:1;
  background:radial-gradient(circle,rgba(63,193,224,.5),transparent 68%);
  top:-24%;right:-12%;
  animation:drift1 22s ease-in-out infinite alternate;
}
.orb-warm{
  width:min(48vw,600px);aspect-ratio:1;
  background:radial-gradient(circle,rgba(206,27,34,.42),transparent 68%);
  bottom:-30%;left:-10%;
  animation:drift2 26s ease-in-out infinite alternate;
}
@keyframes drift1{to{transform:translate(-70px,50px) scale(1.12)}}
@keyframes drift2{to{transform:translate(60px,-40px) scale(1.08)}}

.grid-lines{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 35%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 35%,#000 30%,transparent 78%);
}
.flow{position:absolute;inset:0;width:100%;height:100%;opacity:.9}
.flow path{
  stroke-dasharray:14 22;
  animation:flow 9s linear infinite;
}
.flow path:nth-child(2){animation-duration:12s}
.flow path:nth-child(3){animation-duration:10.5s;animation-direction:reverse}
.flow path:nth-child(4){animation-duration:14s;animation-direction:reverse}
@keyframes flow{to{stroke-dashoffset:-360}}

.hero-in{position:relative;max-width:980px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--text-onink-soft);
  padding:7px 15px 7px 12px;border-radius:100px;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.09);
  margin-bottom:26px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--cool);box-shadow:0 0 10px var(--cool)}

.hero h1{
  font-size:clamp(2.9rem,7.6vw,5.6rem);
  letter-spacing:-.045em;
  line-height:.98;
  margin-bottom:28px;
}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 .warm-off{
  background:linear-gradient(100deg,var(--warm-soft),var(--warm));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero h1 .cool-off{
  background:linear-gradient(100deg,#7BE0F5,var(--cool-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero h1 .muted-h1{color:var(--text-onink-soft);opacity:.62}

.lede{
  font-size:clamp(1.03rem,1.9vw,1.22rem);
  color:var(--text-onink-soft);
  max-width:62ch;line-height:1.62;
  margin-bottom:36px;
}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}

.trust{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  gap:18px 32px;
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,.09);
}
.trust li{
  display:flex;align-items:center;gap:11px;
  font-size:14.5px;font-weight:600;color:var(--text-onink-soft);letter-spacing:-.01em;
}
.trust svg{width:19px;height:19px;flex:none;color:var(--cool)}

/* ---------- Section heads ---------- */
.sec-head{max-width:660px;margin-bottom:clamp(44px,6vw,68px)}
.sec-head.center{margin-inline:auto;text-align:center}
.kicker{
  font-size:12.5px;font-weight:800;letter-spacing:.15em;text-transform:uppercase;
  color:var(--warm);margin-bottom:16px;
}
.sec-head h2,.why h2,.area h2,.contact h2{
  font-size:clamp(2rem,4.4vw,3.2rem);
  letter-spacing:-.042em;line-height:1.02;
}
.sec-sub{color:var(--text-soft);font-size:1.05rem;margin-top:18px;line-height:1.6}

/* ---------- Services ---------- */
.services{background:var(--paper)}
.svc-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(268px,1fr));
  gap:1px;
  background:var(--paper-line);
  border:1px solid var(--paper-line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.svc{
  background:#fff;
  padding:34px 30px 32px;
  position:relative;
  transition:background .3s var(--ease);
}
.svc::before{
  content:'';position:absolute;left:0;top:0;height:2.5px;width:0;
  background:var(--cool);transition:width .4s var(--ease);
}
.svc.warm::before{background:var(--warm)}
.svc.dual::before{background:linear-gradient(90deg,var(--cool),var(--warm))}
.svc:hover::before{width:100%}
.svc:hover{background:#FCFDFE}

.svc-ico{
  width:46px;height:46px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--cool-glow);color:var(--cool-deep);
  margin-bottom:20px;
  transition:transform .35s var(--ease);
}
.svc.warm .svc-ico{background:var(--warm-glow);color:var(--warm)}
.svc.dual .svc-ico{background:linear-gradient(135deg,var(--cool-glow),var(--warm-glow));color:var(--cool-deep)}
.svc:hover .svc-ico{transform:translateY(-3px) rotate(-4deg)}
.svc-ico svg{width:23px;height:23px}

.svc h3{font-size:1.16rem;letter-spacing:-.028em;margin-bottom:10px}
.svc p{font-size:14.8px;color:var(--text-soft);line-height:1.62}

/* ---------- Why ---------- */
.why{background:var(--ink);color:var(--text-onink)}
.why-in{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(40px,6vw,84px);align-items:center}
.why .kicker{color:var(--cool)}
.why-copy p{color:var(--text-onink-soft);margin-top:22px;font-size:1.02rem;line-height:1.68;max-width:52ch}
.why-copy .btn{margin-top:34px}

.stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.stat{background:var(--ink-2);padding:32px 26px;transition:background .3s}
.stat:hover{background:var(--ink-3)}
.stat .num{
  display:block;
  font-size:clamp(2.4rem,4.6vw,3.4rem);font-weight:800;letter-spacing:-.05em;
  background:linear-gradient(140deg,#7BE0F5,var(--cool-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1;margin-bottom:12px;
}
.stat:nth-child(2) .num,.stat:nth-child(3) .num{background:linear-gradient(140deg,var(--warm-soft),var(--warm));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{font-size:13.5px;color:var(--text-onink-soft);font-weight:600;line-height:1.45;letter-spacing:-.01em}

/* ---------- Process ---------- */
.process{background:var(--paper-2)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(236px,1fr));gap:26px;counter-reset:s}
.steps li{
  background:#fff;border:1px solid var(--paper-line);border-radius:var(--r);
  padding:30px 26px 28px;position:relative;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.steps li:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(11,14,19,.08)}
.step-n{
  display:block;font-size:13px;font-weight:800;letter-spacing:.1em;
  color:var(--warm);margin-bottom:18px;
}
.steps h3{font-size:1.08rem;letter-spacing:-.028em;margin-bottom:9px}
.steps p{font-size:14.5px;color:var(--text-soft);line-height:1.6}

/* ---------- Area ---------- */
.area{background:var(--paper)}
.area-in{max-width:820px}
.area-copy p{color:var(--text-soft);margin-top:20px;max-width:58ch;line-height:1.65}
.towns{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
.town{
  font-size:14px;font-weight:600;letter-spacing:-.01em;
  padding:8px 15px;border-radius:100px;
  background:#fff;border:1px solid var(--paper-line);color:var(--text-soft);
}
.town.lead{background:var(--ink);color:#fff;border-color:var(--ink)}
.town.lead:hover{color:#fff}

/* ---------- Contact ---------- */
.contact{background:var(--ink);color:var(--text-onink)}
.contact .kicker{color:var(--cool)}
.contact .sec-sub{color:var(--text-onink-soft)}
.contact-cards{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.ccard{
  background:var(--ink-2);
  padding:30px 26px 28px;
  display:flex;flex-direction:column;align-items:flex-start;
  transition:background .28s var(--ease);
  position:relative;
}
.ccard:not(.is-static):hover{background:var(--ink-3)}
.ccard::before{
  content:'';position:absolute;left:0;top:0;height:2.5px;width:0;
  background:var(--cool);transition:width .4s var(--ease);
}
.ccard:not(.is-static):hover::before{width:100%}
.ci{
  width:42px;height:42px;flex:none;border-radius:12px;
  display:grid;place-items:center;margin-bottom:18px;
  background:rgba(63,193,224,.11);color:var(--cool);
  transition:transform .32s var(--ease);
}
.ci svg{width:19px;height:19px}
.ccard:not(.is-static):hover .ci{transform:translateY(-3px)}
.ccard strong{
  font-size:11.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;
  color:var(--text-onink-soft);margin-bottom:9px;
}
.cval{
  font-size:17px;font-weight:700;letter-spacing:-.025em;color:var(--text-onink);
  line-height:1.3;word-break:break-word;
}
.cnote{font-size:13.5px;color:var(--text-onink-soft);margin-top:6px;line-height:1.45}
.ccard:not(.is-static):hover .cval{color:var(--cool)}
.contact-cta{display:flex;justify-content:center;margin-top:clamp(32px,5vw,46px)}

/* ---------- Footer ---------- */
.footer{background:#070A0E;color:var(--text-onink-soft);padding:clamp(56px,7vw,80px) 0 0;border-top:1px solid var(--line)}
.foot-in{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:44px 32px;padding-bottom:52px}
.brand-foot{margin-bottom:4px}
.foot-brand p{margin-top:18px;font-size:14.5px;line-height:1.6;max-width:34ch}
.foot-col h4{
  font-size:11.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--text-onink);margin-bottom:18px;
}
.foot-col a{display:block;font-size:14.5px;padding:5px 0;transition:color .2s;line-height:1.5}
.foot-col a:hover{color:var(--cool)}
.foot-phone{font-size:19px!important;font-weight:800;letter-spacing:-.03em;color:var(--text-onink)!important;margin-bottom:12px}
.foot-area{display:block;font-size:14.5px;padding:5px 0;line-height:1.5;color:var(--text-onink-soft)}
.foot-phone:hover{color:var(--cool)!important}
.foot-bot{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;border-top:1px solid var(--line);font-size:13px;
}
.lic{letter-spacing:.01em}
.lic strong{color:var(--text-onink);font-weight:700;letter-spacing:.02em}

/* ---------- Mobile call FAB ---------- */
.fab{
  display:none;
  position:fixed;left:16px;right:16px;bottom:16px;z-index:90;
  align-items:center;justify-content:center;gap:9px;
  background:var(--warm);color:#fff;
  font-weight:800;font-size:16px;letter-spacing:-.01em;
  padding:16px;border-radius:100px;
  box-shadow:0 8px 26px rgba(206,27,34,.42);
}
.fab svg{width:18px;height:18px}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px)}
.reveal.in{opacity:1;transform:none;transition:opacity .7s var(--ease),transform .7s var(--ease)}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:980px){
  .why-in{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}

@media (max-width:860px){
  .nav-in{height:72px}
  .logo-word{height:58px}
  .links{display:none}
  .burger{display:flex}
  .mobile{display:flex}
  .links + .nav-cta{margin-left:auto}
  .phone span{display:none}
  .phone{padding:9px;background:rgba(255,255,255,.06);border-radius:50%}
  .phone svg{width:17px;height:17px}
}

@media (max-width:560px){
  /* the fixed "Call Now" bar already covers this CTA */
  .nav-cta .btn-sm{display:none}
  /* the dot was wrapping onto a line of its own */
  .alertbar .pulse{display:none}
  .alertbar{gap:6px;padding-block:7px;line-height:1.45}
}

@media (max-width:720px){
  body{font-size:16px}
  .alertbar p{font-size:12.5px}
  .alertbar{gap:8px;padding-block:8px}
  .hero{padding-bottom:100px}
  .hero-btns .btn{width:100%}
  .stats{grid-template-columns:1fr 1fr}
  .fab{display:flex}
  main{padding-bottom:0}
  .footer{padding-bottom:78px}
  .foot-bot{justify-content:center;text-align:center}
}

@media (max-width:460px){
  .stats{grid-template-columns:1fr}
  .foot-in{grid-template-columns:1fr}
  .logo-word{height:50px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}