/* Knox Auto Detail & Ceramic Coating - North Knoxville
   Palette grounded in the craft: gloss-black paint, ceramic-sheen cyan, chrome. */
:root{
  --obsidian:#0B0E11;
  --graphite:#14181D;
  --graphite-2:#1A2026;
  --line:rgba(216,224,230,.10);
  --line-2:rgba(216,224,230,.18);
  --white:#F4F8FA;
  --chrome:#D8E0E6;
  --chrome-dim:#93A0AB;
  --ceramic:#36C8D6;
  --ceramic-deep:#1C7F8E;
  --ceramic-glow:rgba(54,200,214,.16);
  --maxw:1180px;
  --pad:clamp(20px,5vw,40px);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--obsidian);
  color:var(--chrome);
  font-family:"Hanken Grotesk",system-ui,sans-serif;
  font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
em{font-style:normal;color:var(--ceramic)}

.skip{position:absolute;left:-999px;top:0;background:var(--ceramic);color:#04181b;padding:10px 16px;z-index:200;font-weight:700}
.skip:focus{left:12px;top:12px}

/* ---------- type ---------- */
.eyebrow{
  font-family:"Saira Condensed",sans-serif;
  text-transform:uppercase;letter-spacing:.22em;font-weight:600;
  font-size:.78rem;color:var(--ceramic);margin-bottom:18px;
}
.sec-title{
  font-family:"Saira Condensed",sans-serif;font-weight:700;
  text-transform:uppercase;letter-spacing:.01em;line-height:.98;
  font-size:clamp(2rem,5.2vw,3.5rem);color:var(--white);
}
.sec-lede{color:var(--chrome-dim);max-width:54ch;margin-top:18px;font-size:1.05rem}
.sec-head{margin-bottom:48px;max-width:760px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .sec-lede{margin-left:auto;margin-right:auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:"Saira Condensed",sans-serif;text-transform:uppercase;
  letter-spacing:.12em;font-weight:600;font-size:.92rem;
  padding:15px 28px;border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-fill{background:var(--ceramic);color:#04181b}
.btn-fill:hover{background:var(--white)}
.btn-ghost{border-color:var(--line-2);color:var(--chrome);background:transparent}
.btn-ghost:hover{border-color:var(--ceramic);color:var(--ceramic)}
.btn.full{width:100%}

/* ---------- header ---------- */
.site-head{position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;}
.site-head::before{content:"";position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(7,9,11,.65),transparent);
  pointer-events:none;opacity:1;transition:opacity .3s}
.site-head.solid{background:rgba(11,14,17,.92);backdrop-filter:blur(10px);border-bottom-color:var(--line)}
.site-head.solid::before{opacity:0}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:74px;position:relative}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:38px;height:38px;color:var(--chrome);flex:none}
.brand-text{font-family:"Saira Condensed",sans-serif;font-weight:700;
  font-size:1.32rem;letter-spacing:.04em;line-height:.86;color:var(--white);
  display:flex;flex-direction:column}
.brand-sub{font-size:.62rem;letter-spacing:.34em;color:var(--ceramic);font-weight:600}
.brand-text.big{font-size:2rem}
.brand-text.big .brand-sub{font-size:.78rem}
.navlinks{display:flex;align-items:center;gap:30px}
.navlinks a{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;
  letter-spacing:.1em;font-size:.92rem;font-weight:500;color:var(--chrome);
  position:relative;padding:6px 0;transition:color .2s}
.navlinks a:not(.navcta)::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--ceramic);transition:width .25s var(--ease)}
.navlinks a:not(.navcta):hover{color:var(--white)}
.navlinks a:not(.navcta):hover::after{width:100%}
.navlinks a.navcta{padding:11px 22px;border:1px solid var(--ceramic);color:var(--ceramic);
  letter-spacing:.12em;transition:background .25s,color .25s}
.navlinks a.navcta:hover{background:var(--ceramic);color:#04181b}

.burger{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;
  flex-direction:column;justify-content:center;gap:6px;padding:8px}
.burger span{display:block;height:2px;width:100%;background:var(--chrome);transition:transform .3s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

.mobile-nav{position:fixed;top:74px;left:0;right:0;background:rgba(11,14,17,.98);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
  display:flex;flex-direction:column;padding:8px var(--pad) 22px;
  transform:translateY(-12px);opacity:0;pointer-events:none;transition:.28s var(--ease);z-index:99}
.mobile-nav.open{transform:none;opacity:1;pointer-events:auto}
.mobile-nav a{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;
  letter-spacing:.1em;font-size:1.1rem;padding:15px 0;border-bottom:1px solid var(--line);color:var(--chrome)}
.mobile-nav a.m-call{color:var(--ceramic);border-bottom:0;margin-top:6px}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;
  justify-content:center;overflow:hidden;
  background:radial-gradient(120% 80% at 70% 0%,#1a2731 0%,#0d141a 42%,var(--obsidian) 78%);}
.hero-gloss{position:absolute;inset:0;z-index:0;overflow:hidden;
  background:linear-gradient(135deg,rgba(54,200,214,.05),transparent 40%),
    radial-gradient(60% 50% at 80% 90%,rgba(54,200,214,.10),transparent 70%);}
.sweep{position:absolute;top:-20%;left:-40%;width:50%;height:140%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.10) 45%,rgba(54,200,214,.16) 50%,rgba(255,255,255,.10) 55%,transparent);
  transform:skewX(-12deg);filter:blur(6px);
  animation:sweep 7s var(--ease) 1.1s infinite}
@keyframes sweep{0%{left:-50%}55%,100%{left:130%}}
.bead{position:absolute;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.9),rgba(54,200,214,.35) 45%,rgba(8,30,34,.5) 75%);
  box-shadow:0 1px 6px rgba(0,0,0,.35), inset 0 0 4px rgba(255,255,255,.4);
  opacity:.0;animation:beadIn 1s var(--ease) forwards, beadDrift 9s ease-in-out infinite}
.b1{width:14px;height:14px;top:24%;left:12%;animation-delay:1.2s,1.4s}
.b2{width:9px;height:9px;top:62%;left:20%;animation-delay:1.5s,1.7s}
.b3{width:20px;height:20px;top:74%;left:38%;animation-delay:1.3s,1.6s}
.b4{width:7px;height:7px;top:32%;left:54%;animation-delay:1.7s,2s}
.b5{width:12px;height:12px;top:18%;left:80%;animation-delay:1.4s,1.9s}
.b6{width:16px;height:16px;top:58%;left:88%;animation-delay:1.6s,2.1s}
.b7{width:8px;height:8px;top:84%;left:68%;animation-delay:1.9s,2.2s}
.b8{width:11px;height:11px;top:46%;left:33%;animation-delay:1.8s,2s}
@keyframes beadIn{to{opacity:.85}}
@keyframes beadDrift{0%,100%{transform:translateY(0)}50%{transform:translateY(7px)}}
.hero-inner{position:relative;z-index:2;padding-top:90px;padding-bottom:60px}
.hero-title{font-family:"Saira Condensed",sans-serif;font-weight:700;
  text-transform:uppercase;line-height:.92;letter-spacing:.005em;
  font-size:clamp(2.9rem,9vw,6.4rem);color:var(--white);margin:6px 0 22px}
.hero-title span{display:block}
.hero-sub{color:var(--chrome-dim);max-width:50ch;font-size:clamp(1.02rem,2vw,1.2rem)}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.scrollcue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  z-index:2;background:none;border:0;cursor:pointer;width:26px;height:44px;
  border:1px solid var(--line-2);border-radius:0}
.scrollcue span{display:block;width:2px;height:9px;background:var(--ceramic);margin:7px auto 0;
  animation:cue 1.8s var(--ease) infinite}
@keyframes cue{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}100%{opacity:0;transform:translateY(10px)}}

/* ---------- spec strip ---------- */
.spec{background:var(--graphite);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.spec-i{padding:26px 22px;display:flex;flex-direction:column;gap:6px;
  border-left:1px solid var(--line);transition:background .25s}
.spec-i:first-child{border-left:0}
.spec-i:hover{background:var(--ceramic-glow)}
.spec-k{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;
  letter-spacing:.16em;font-size:.72rem;color:var(--chrome-dim)}
.spec-v{font-family:"Saira Condensed",sans-serif;font-weight:600;font-size:1.08rem;color:var(--white);letter-spacing:.02em}
.spec-v em{font-style:normal;color:var(--chrome-dim);font-size:.9em}
.stars{color:var(--ceramic);letter-spacing:.05em;font-size:.85em}

/* ---------- section base ---------- */
section{padding:clamp(64px,9vw,118px) 0}
.services{background:var(--obsidian)}

/* services */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc{background:var(--graphite);padding:38px 32px 32px;position:relative;
  transition:background .3s var(--ease)}
.svc-line{position:absolute;top:0;left:0;height:3px;width:100%;background:var(--ceramic);
  transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.svc:hover{background:var(--graphite-2)}
.svc:hover .svc-line{transform:scaleX(1)}
.svc h3{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;font-weight:600;
  font-size:1.5rem;letter-spacing:.02em;color:var(--white);margin-bottom:14px}
.svc p{color:var(--chrome-dim);font-size:.98rem}
.svc-tag{display:inline-block;margin-top:20px;font-family:"Saira Condensed",sans-serif;
  text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;color:var(--ceramic);
  padding-top:14px;border-top:1px solid var(--line);width:100%}

/* process */
.process{background:var(--graphite);border-top:1px solid var(--line)}
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.step{background:var(--obsidian);padding:34px 26px 30px;position:relative;transition:background .3s}
.step:hover{background:var(--graphite-2)}
.step-n{font-family:"Saira Condensed",sans-serif;font-weight:700;font-size:2.6rem;
  color:transparent;-webkit-text-stroke:1px var(--ceramic-deep);display:block;margin-bottom:14px;
  transition:-webkit-text-stroke-color .3s,color .3s}
.step:hover .step-n{-webkit-text-stroke-color:var(--ceramic);color:var(--ceramic-glow)}
.step h3{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;font-weight:600;
  font-size:1.3rem;color:var(--white);margin-bottom:10px;letter-spacing:.02em}
.step p{color:var(--chrome-dim);font-size:.94rem}

/* ceramic explainer */
.ceramic{background:var(--obsidian)}
.ceramic-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,6vw,76px);align-items:center}
.ben{list-style:none;margin-top:28px;display:grid;gap:14px}
.ben li{display:flex;align-items:center;gap:14px;font-size:1.04rem;color:var(--chrome);
  font-family:"Saira Condensed",sans-serif;text-transform:uppercase;letter-spacing:.06em;font-weight:500}
.ben .dot{width:8px;height:8px;background:var(--ceramic);flex:none;transform:rotate(45deg)}
.watertest{position:relative}
.panel{position:relative;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--line-2);
  background:
    radial-gradient(120% 120% at 30% 10%,#223641 0%,#11191f 45%,#0a0f13 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 30px 60px -30px rgba(0,0,0,.8)}
.panel-sheen{position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.07) 48%,rgba(54,200,214,.12) 52%,transparent 70%);
  mix-blend-mode:screen}
.wb{position:absolute;border-radius:50%;
  background:radial-gradient(circle at 35% 28%,rgba(255,255,255,.95),rgba(54,200,214,.4) 45%,rgba(6,24,28,.6) 78%);
  box-shadow:0 2px 8px rgba(0,0,0,.45),inset 0 0 6px rgba(255,255,255,.45);
  transition:transform .5s var(--ease)}
.w1{width:30px;height:30px;top:18%;left:16%}
.w2{width:18px;height:18px;top:44%;left:28%}
.w3{width:42px;height:42px;top:60%;left:14%}
.w4{width:14px;height:14px;top:26%;left:48%}
.w5{width:24px;height:24px;top:54%;left:52%}
.w6{width:34px;height:34px;top:30%;left:72%}
.w7{width:16px;height:16px;top:70%;left:70%}
.w8{width:20px;height:20px;top:78%;left:42%}
.w9{width:12px;height:12px;top:14%;left:84%}
.watertest:hover .wb{transform:translateY(10px) scale(1.04)}
.watertest figcaption{margin-top:14px;text-align:center;font-family:"Saira Condensed",sans-serif;
  text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;color:var(--chrome-dim)}

/* reviews */
.reviews{background:var(--graphite);border-top:1px solid var(--line)}
.rate{color:var(--ceramic)}
.reviews .btn{margin-top:28px}

/* quote */
.quote{background:var(--obsidian)}
.quote-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,72px);align-items:start;position:relative}
.contact-list{list-style:none;margin-top:30px;display:grid;gap:20px}
.contact-list li{display:flex;flex-direction:column;gap:4px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.cl-k{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;letter-spacing:.16em;
  font-size:.72rem;color:var(--chrome-dim)}
.contact-list a,.contact-list span:not(.cl-k){font-size:1.12rem;color:var(--white);transition:color .2s}
.contact-list a:hover{color:var(--ceramic)}

.quote-form{background:var(--graphite);border:1px solid var(--line);padding:clamp(24px,4vw,38px)}
.f-row{margin-bottom:18px;display:flex;flex-direction:column}
.f-row label{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;
  letter-spacing:.12em;font-size:.74rem;color:var(--chrome-dim);margin-bottom:8px}
.f-row input,.f-row textarea,.f-row select{
  background:var(--obsidian);border:1px solid var(--line-2);color:var(--white);
  padding:13px 14px;font-family:inherit;font-size:1rem;width:100%;
  transition:border-color .2s}
.f-row input:focus,.f-row textarea:focus,.f-row select:focus{outline:none;border-color:var(--ceramic)}
.f-row input.invalid,.f-row select.invalid{border-color:#d05a4a}
.select-wrap{position:relative}
.select-wrap::after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;
  border-right:2px solid var(--ceramic);border-bottom:2px solid var(--ceramic);
  transform:translateY(-65%) rotate(45deg);pointer-events:none}
.f-row select{appearance:none}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.f-note{font-size:.84rem;color:var(--chrome-dim);margin-top:14px;text-align:center}
.quote-success{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;
  justify-content:center;text-align:center;background:var(--obsidian);border:1px solid var(--ceramic);padding:30px;gap:8px}
.qs-mark{width:60px;height:60px;margin-bottom:8px}
.quote-success h3{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;
  font-size:1.8rem;color:var(--white);letter-spacing:.03em}
.quote-success p{color:var(--chrome-dim);max-width:38ch}
.quote-success a{color:var(--ceramic)}

/* faq */
.faq{background:var(--graphite);border-top:1px solid var(--line)}
.faq-list{max-width:820px}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:24px 0;display:flex;align-items:center;
  justify-content:space-between;gap:20px;
  font-family:"Saira Condensed",sans-serif;text-transform:uppercase;letter-spacing:.03em;
  font-size:1.22rem;color:var(--white);transition:color .2s}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--ceramic)}
.chev{width:12px;height:12px;border-right:2px solid var(--ceramic);border-bottom:2px solid var(--ceramic);
  transform:rotate(45deg);transition:transform .3s var(--ease);flex:none}
.qa[open] .chev{transform:rotate(-135deg)}
.qa p{color:var(--chrome-dim);padding:0 0 26px;max-width:64ch}
.qa p a{color:var(--ceramic)}

/* footer */
.site-foot{background:#070A0C;border-top:1px solid var(--line);padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid var(--line)}
.foot-brand p{color:var(--chrome-dim);margin-top:16px;max-width:34ch;font-size:.96rem}
.foot-col{display:flex;flex-direction:column;gap:12px}
.foot-k{font-family:"Saira Condensed",sans-serif;text-transform:uppercase;letter-spacing:.16em;
  font-size:.74rem;color:var(--ceramic);margin-bottom:4px}
.foot-col a{color:var(--chrome-dim);transition:color .2s;line-height:1.4}
.foot-col a:hover{color:var(--white)}
.foot-base{display:flex;justify-content:space-between;padding-top:24px;gap:16px;flex-wrap:wrap;
  font-family:"Saira Condensed",sans-serif;text-transform:uppercase;letter-spacing:.1em;
  font-size:.76rem;color:var(--chrome-dim)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js-ready .reveal{will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}
.hero .reveal[data-d]{transition-delay:calc(var(--d,0)*.11s)}
.hero-title .reveal{transition-delay:calc(var(--d,0)*.11s)}

/* no-js / no-observer safety */
.no-js .reveal{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .ceramic-grid{grid-template-columns:1fr;gap:40px}
  .quote-grid{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .navlinks{display:none}
  .burger{display:flex}
  .spec-grid{grid-template-columns:1fr 1fr}
  .spec-i:nth-child(odd){border-left:0}
  .spec-i:nth-child(n+3){border-top:1px solid var(--line)}
}
@media(max-width:560px){
  body{font-size:16px}
  .svc-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .hero-inner{padding-top:80px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .spec-grid{grid-template-columns:1fr}
  .spec-i{border-left:0!important}
  .spec-i+.spec-i{border-top:1px solid var(--line)}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
  .sweep,.bead,.scrollcue span{display:none}
}