/* ===== CNSTECH Modding Service — modding.css ===== */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0c10;--bg-card:#12151c;--bg-card-hover:#181c26;
  --text:#d8dce6;--text-muted:#8a90a0;--text-heading:#f0f2f6;
  --cyan:#00d4ff;--cyan-dim:rgba(0,212,255,.15);--cyan-glow:rgba(0,212,255,.25);
  --border:#1e2230;--border-hover:#2a3040;
  --radius:8px;--radius-lg:12px;
  --max-w:1200px;--section-py:5rem;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"SF Mono",SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--cyan);text-decoration:none;transition:color .2s}
a:hover{color:#fff}
a:focus-visible,button:focus-visible,details>summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:3px}
h1,h2,h3{color:var(--text-heading);line-height:1.25;font-weight:700}
h2{font-size:clamp(1.5rem,3vw,2.15rem);margin-bottom:1rem}
h3{font-size:clamp(1.05rem,2vw,1.3rem)}
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}
.section{padding:var(--section-py) 0}
.section-intro{max-width:760px;color:var(--text-muted);margin-bottom:2.5rem;font-size:1.05rem}

/* --- Header --- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,12,16,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{max-width:var(--max-w);margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center;justify-content:space-between}
.header-logo{display:flex;align-items:center}
.logo-img{width:253px;height:auto}
.nav-list{list-style:none;display:flex;gap:2rem}
.nav-list a{color:var(--text-muted);font-size:.9rem;font-weight:500;letter-spacing:.02em;transition:color .2s}
.nav-list a:hover{color:#fff}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:.5rem;flex-direction:column;gap:5px}
.menu-bar{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}

/* --- Breadcrumb --- */
.breadcrumb{max-width:var(--max-w);margin:0 auto;padding:.75rem 1.5rem}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;font-size:.82rem;color:var(--text-muted)}
.breadcrumb li::after{content:"/";margin-left:.4rem;opacity:.4}
.breadcrumb li:last-child::after{display:none}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--cyan)}

/* --- Hero --- */
.hero{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;max-width:var(--max-w);margin:0 auto;padding:3rem 1.5rem 4rem}
.hero-image-wrap{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:1200/630}
.hero-img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;gap:.45rem;padding:1rem 1.25rem;background:linear-gradient(0deg,rgba(10,12,16,.72) 0%,transparent 60%);pointer-events:none}
.telemetry-item{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--mono);font-size:.65rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);opacity:.7}
.hero-content{display:flex;flex-direction:column;justify-content:center;gap:1.25rem}
h1{font-size:clamp(1.75rem,4vw,2.65rem);letter-spacing:-.02em}
.hero-sub{color:var(--text-muted);font-size:1.05rem;line-height:1.7;max-width:540px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.5rem}
.hero-glow{position:absolute;top:30%;left:20%;width:400px;height:400px;background:radial-gradient(circle,var(--cyan-dim) 0%,transparent 70%);border-radius:50%;pointer-events:none;z-index:-1;filter:blur(60px);opacity:.45}

/* --- Buttons --- */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:var(--radius);font-size:.92rem;font-weight:600;transition:background .2s,color .2s,box-shadow .2s;white-space:nowrap}
.btn-primary{background:var(--cyan);color:var(--bg)}
.btn-primary:hover{background:#33dfff;color:var(--bg);box-shadow:0 0 20px var(--cyan-glow)}
.btn-secondary{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-secondary:hover{border-color:var(--cyan);color:var(--cyan)}
.btn svg{flex-shrink:0}

/* --- Snapshot / Meters --- */
.snapshot{border-bottom:1px solid var(--border)}
.snapshot-meters{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:2rem}
.meter{display:flex;flex-direction:column;gap:.35rem}
.meter-label{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}
.meter-track{height:6px;background:var(--border);border-radius:3px;overflow:hidden}
.meter-fill{height:100%;width:0;background:var(--cyan);border-radius:3px;transition:width 1.2s cubic-bezier(.23,1,.32,1)}
.meter-fill--good{background:linear-gradient(90deg,var(--cyan),#3dff9a)}
.meter-status{font-family:var(--mono);font-size:.68rem;color:var(--cyan);letter-spacing:.06em;text-transform:uppercase}

/* --- Service Cards --- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.service-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem 1.75rem;transition:border-color .25s,transform .25s,box-shadow .25s}
.service-card:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:0 8px 30px rgba(0,212,255,.08)}
.card-icon{color:var(--cyan);margin-bottom:1rem}
.service-card h3{margin-bottom:.6rem}
.service-card p{color:var(--text-muted);font-size:.92rem;line-height:1.65}

/* --- Process Pipeline --- */
.process{background:var(--bg-card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.process-pipeline{display:grid;grid-template-columns:repeat(5,1fr);gap:1.25rem;margin-top:2rem;position:relative}
.process-pipeline::before{content:"";position:absolute;top:28px;left:5%;width:90%;height:2px;background:var(--border)}
.process-step{position:relative;text-align:center;padding-top:3.5rem}
.step-number{position:absolute;top:0;left:50%;transform:translateX(-50%);width:42px;height:42px;display:flex;align-items:center;justify-content:center;background:var(--bg);border:2px solid var(--cyan);border-radius:50%;font-family:var(--mono);font-size:.8rem;font-weight:700;color:var(--cyan);z-index:1;transition:background .3s,color .3s}
.process-step:hover .step-number{background:var(--cyan);color:var(--bg)}
.process-step h3{font-size:.95rem;margin-bottom:.4rem}
.process-step p{color:var(--text-muted);font-size:.85rem;line-height:1.55}

/* --- Cooling Feature --- */
.cooling-layout{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.cooling-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden}
.cooling-visual img{width:100%;aspect-ratio:1200/630;object-fit:cover}
.airflow-lines{position:absolute;inset:0;pointer-events:none}
.airflow-line{position:absolute;left:10%;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.35}
.airflow-line:nth-child(1){top:30%;width:60%;animation:airflow 4s ease-in-out infinite}
.airflow-line:nth-child(2){top:50%;width:70%;animation:airflow 4s ease-in-out 1.2s infinite}
.airflow-line:nth-child(3){top:70%;width:50%;animation:airflow 4s ease-in-out 2.4s infinite}
@keyframes airflow{0%,100%{opacity:0;transform:translateX(-30px)}50%{opacity:.4;transform:translateX(30px)}}
.cooling-content h2{margin-bottom:1rem}
.cooling-content p{color:var(--text-muted);margin-bottom:1rem;font-size:1rem;line-height:1.7}

/* --- Use Cases --- */
.use-cases{border-top:1px solid var(--border)}
.usecase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:2rem}
.usecase-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;transition:border-color .25s}
.usecase-item:hover{border-color:var(--cyan)}
.usecase-icon{color:var(--cyan);margin-bottom:.75rem}
.usecase-item h3{font-size:1rem;margin-bottom:.4rem}
.usecase-item p{color:var(--text-muted);font-size:.88rem;line-height:1.6}

/* --- Integration --- */
.integration{background:var(--bg-card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.integration-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;margin-top:1.5rem}
.integration-link{display:flex;align-items:flex-start;gap:1rem;padding:1.25rem;border:1px solid var(--border);border-radius:var(--radius);color:var(--text);transition:border-color .25s,background .25s}
.integration-link:hover{border-color:var(--cyan);background:rgba(0,212,255,.04);color:var(--text)}
.int-icon{flex-shrink:0;color:var(--cyan);margin-top:2px}
.int-text{display:flex;flex-direction:column;gap:.2rem}
.int-text strong{color:var(--text-heading);font-size:.95rem}
.int-text span:last-child{color:var(--text-muted);font-size:.82rem}

/* --- FAQ --- */
.faq{border-bottom:1px solid var(--border)}
.faq-list{max-width:800px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item summary{padding:1.15rem 0;font-weight:600;font-size:1rem;cursor:pointer;color:var(--text-heading);list-style:none;display:flex;align-items:center;justify-content:space-between;gap:1rem;transition:color .2s}
.faq-item summary::after{content:"";flex-shrink:0;width:10px;height:10px;border-right:2px solid var(--text-muted);border-bottom:2px solid var(--text-muted);transform:rotate(45deg);transition:transform .3s}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item summary:hover{color:var(--cyan)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-answer{padding:0 0 1.25rem;color:var(--text-muted);font-size:.95rem;line-height:1.7}

/* --- Final CTA --- */
.final-cta{text-align:center;padding:4.5rem 0}
.final-cta p{color:var(--text-muted);font-size:1.05rem;max-width:560px;margin:0 auto 2rem}
.cta-buttons{display:flex;justify-content:center;flex-wrap:wrap;gap:.75rem}

/* --- Footer --- */
.site-footer{border-top:1px solid var(--border);padding:3rem 0 2rem;background:var(--bg)}
.footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:2rem}
.footer-logo{width:209px;height:auto;margin-bottom:.75rem}
.footer-brand p{color:var(--text-muted);font-size:.88rem;line-height:1.6;max-width:300px}
.footer-nav ul{list-style:none;display:flex;flex-direction:column;gap:.5rem}
.footer-nav a{color:var(--text-muted);font-size:.88rem}
.footer-nav a:hover{color:var(--cyan)}
.footer-contact{display:flex;flex-direction:column;gap:.5rem}
.footer-contact a{color:var(--text-muted);font-size:.88rem}
.footer-contact a:hover{color:var(--cyan)}
.footer-copy{grid-column:1/-1;border-top:1px solid var(--border);padding-top:1.25rem;margin-top:1rem}
.footer-copy p{color:var(--text-muted);font-size:.78rem}

/* --- Reveal animation --- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s cubic-bezier(.23,1,.32,1),transform .65s cubic-bezier(.23,1,.32,1)}
.reveal.is-visible{opacity:1;transform:none}

/* --- RGB Rail (subtle) --- */
.site-header::after{content:"";position:absolute;bottom:-1px;left:0;width:100%;height:2px;background:linear-gradient(90deg,transparent 0%,var(--cyan) 30%,#3dff9a 50%,var(--cyan) 70%,transparent 100%);background-size:200% 100%;animation:rgbRail 6s linear infinite;opacity:.35}
@keyframes rgbRail{0%{background-position:200% 0}100%{background-position:0% 0}}

/* --- Reduced motion --- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===== Responsive ===== */

/* Tablet */
@media(max-width:1024px){
  .hero{grid-template-columns:1fr;gap:1.5rem;padding-top:2rem;padding-bottom:3rem}
  .hero-content{order:-1}
  .snapshot-meters{grid-template-columns:repeat(2,1fr)}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .process-pipeline{grid-template-columns:repeat(3,1fr);gap:1.5rem}
  .process-pipeline::before{display:none}
  .cooling-layout{grid-template-columns:1fr;gap:2rem}
  .usecase-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}

/* Mobile */
@media(max-width:768px){
  :root{--section-py:3.5rem}
  .nav-list{display:none;position:absolute;top:100%;left:0;width:100%;background:rgba(10,12,16,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);flex-direction:column;padding:1.5rem;gap:0;border-bottom:1px solid var(--border)}
  .nav-list.is-open{display:flex}
  .nav-list li{padding:.75rem 0;border-bottom:1px solid var(--border)}
  .nav-list li:last-child{border:none}
  .menu-toggle{display:flex}
  .menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2){opacity:0}
  .menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .logo-img{width:180px}
  .hero{padding:1.5rem 1.5rem 2.5rem}
  .snapshot-meters{grid-template-columns:1fr 1fr}
  .service-grid{grid-template-columns:1fr}
  .process-pipeline{grid-template-columns:1fr;gap:1.75rem}
  .process-step{text-align:left;padding-top:0;padding-left:3.5rem}
  .step-number{left:0;top:0;transform:none}
  .usecase-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-copy{text-align:center}
}

@media(max-width:480px){
  h1{font-size:1.55rem}
  .hero-ctas{flex-direction:column}
  .btn{justify-content:center;width:100%}
}

/* Google reviews footer link */
.site-footer .footer-review-link,
footer .footer-review-link,
.cnstech-home-2026 footer .footer-review-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  margin-top: .85rem;
  padding: .58rem .85rem;
  border: 1px solid rgba(0, 214, 255, .35);
  border-radius: 8px;
  background: rgba(0, 214, 255, .08);
  color: #00d6ff;
  font-size: .875rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
}

.site-footer .footer-review-link:hover,
footer .footer-review-link:hover,
.cnstech-home-2026 footer .footer-review-link:hover {
  border-color: rgba(0, 214, 255, .65);
  background: rgba(0, 214, 255, .14);
  color: #fff;
}