/* CNSTECH Access Control – Service Page Styles
   Version: 1.0.0  |  Target: <35 KB */

/* ── Reset & Base ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;line-height:1.6;color:#e4e8ec;background:#0d1117;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:#00d4ff;text-decoration:none;transition:color .2s}
a:hover{color:#5ce1ff}
ul{list-style:none}

/* ── Utility ── */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ── Reveal animation ── */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.revealed{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.reveal.revealed{opacity:1;transform:none;transition:none}
  .led,.log-row,.scan-line,.circuit-line{animation:none!important;transition:none!important}
}

/* ── Header ── */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(13,17,23,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(0,212,255,.12);transition:padding .3s,background .3s}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.site-header.scrolled{background:rgba(13,17,23,.97)}
.site-header.scrolled .container{height:58px}
.header-logo img{width:253px;height:auto}

/* Nav */
.nav-list{display:flex;gap:28px;align-items:center}
.nav-list a{color:#c9d1d9;font-size:.9rem;font-weight:500;transition:color .2s}
.nav-list a:hover,.nav-list a[aria-current]{color:#00d4ff}
.nav-cta{background:#00d4ff;color:#0d1117!important;padding:8px 20px;border-radius:6px;font-weight:600;font-size:.88rem;transition:background .2s}
.nav-cta:hover{background:#5ce1ff;color:#0d1117!important}

/* Mobile toggle */
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle svg{width:28px;height:28px;stroke:#e4e8ec;stroke-width:2}

@media(max-width:1023px){
  .nav-toggle{display:block}
  .nav-list{position:fixed;top:0;right:-100%;width:280px;height:100vh;flex-direction:column;background:#161b22;padding:80px 32px 32px;gap:20px;transition:right .3s ease;box-shadow:-4px 0 24px rgba(0,0,0,.5)}
  .nav-list.nav-open{right:0}
  .nav-list a{font-size:1.05rem}
}

/* ── Hero ── */
.hero{padding:140px 0 80px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero h1{font-size:2.6rem;font-weight:800;line-height:1.15;color:#fff;margin-bottom:16px}
.hero h1 span{color:#00d4ff}
.hero-sub{font-size:1.1rem;color:#8b949e;margin-bottom:28px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:#00d4ff;color:#0d1117;padding:12px 28px;border-radius:6px;font-weight:700;font-size:.95rem;border:none;cursor:pointer;transition:background .2s,transform .15s}
.btn-primary:hover{background:#5ce1ff;color:#0d1117;transform:translateY(-1px)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:#00d4ff;padding:12px 28px;border-radius:6px;font-weight:600;font-size:.95rem;border:1.5px solid rgba(0,212,255,.4);cursor:pointer;transition:border-color .2s,background .2s}
.btn-secondary:hover{border-color:#00d4ff;background:rgba(0,212,255,.08)}

/* Trust chips */
.trust-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:6px;background:rgba(0,212,255,.08);border:1px solid rgba(0,212,255,.18);padding:6px 14px;border-radius:20px;font-size:.82rem;color:#8b949e}
.chip svg{width:16px;height:16px;stroke:#00d4ff;flex-shrink:0}

/* Hero visual */
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
.hero-img{border-radius:12px;box-shadow:0 8px 40px rgba(0,212,255,.12);width:100%;aspect-ratio:1067/800;object-fit:cover}

/* LED indicator */
.led{position:absolute;top:20px;right:24px;width:14px;height:14px;border-radius:50%;transition:background .5s,box-shadow .5s}
.led-standby{background:#445;box-shadow:0 0 6px rgba(68,68,85,.5)}
.led-granted{background:#00ff88;box-shadow:0 0 14px rgba(0,255,136,.6)}
.led-denied{background:#ff4444;box-shadow:0 0 14px rgba(255,68,68,.6)}

/* Access log overlay */
.access-log-wrap{position:absolute;bottom:16px;left:16px;right:16px;background:rgba(13,17,23,.85);backdrop-filter:blur(6px);border-radius:8px;padding:10px 12px;border:1px solid rgba(0,212,255,.15);max-height:140px;overflow:hidden}
.access-log-title{font-size:.7rem;color:#00d4ff;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;font-weight:700}
.log-row{display:grid;grid-template-columns:48px 1fr 1fr 64px;gap:6px;font-size:.72rem;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.04);animation:fadeSlideIn .4s ease}
.log-time{color:#8b949e}.log-user{color:#c9d1d9}.log-door{color:#8b949e}
.log-status{text-align:right;font-weight:600}
.log-granted .log-status{color:#00ff88}
.log-denied .log-status{color:#ff4444}
@keyframes fadeSlideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:767px){
  .hero{padding:110px 0 50px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:1.9rem}
  .hero-sub{font-size:1rem}
  .header-logo img{width:180px}
}

/* ── Snapshot / Metrics ── */
.snapshot{padding:64px 0;border-top:1px solid rgba(255,255,255,.06)}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{background:rgba(22,27,34,.7);border:1px solid rgba(0,212,255,.1);border-radius:10px;padding:28px 24px;text-align:center;transition:border-color .3s,transform .2s}
.metric-card:hover{border-color:rgba(0,212,255,.35);transform:translateY(-3px)}
.metric-icon{width:44px;height:44px;margin:0 auto 14px;stroke:#00d4ff}
.metric-card h3{font-size:1.05rem;color:#fff;margin-bottom:6px;font-weight:700}
.metric-card p{font-size:.85rem;color:#8b949e}

@media(max-width:767px){
  .metrics-grid{grid-template-columns:1fr 1fr;gap:14px}
  .metric-card{padding:20px 16px}
}

/* ── Section common ── */
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:52px}
.section-header h2{font-size:2rem;font-weight:800;color:#fff;margin-bottom:12px}
.section-header p{font-size:1.05rem;color:#8b949e;max-width:640px;margin:0 auto}
.section-alt{background:#161b22}

@media(max-width:767px){
  .section{padding:52px 0}
  .section-header h2{font-size:1.5rem}
}

/* ── Service Types ── */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:rgba(22,27,34,.8);border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:32px 28px;transition:border-color .3s,box-shadow .3s,transform .2s;cursor:default}
.service-card:hover{border-color:rgba(0,212,255,.3);box-shadow:0 6px 28px rgba(0,0,0,.3);transform:translateY(-3px)}
.service-card-icon{width:48px;height:48px;margin-bottom:18px;stroke:#00d4ff}
.service-card h3{font-size:1.1rem;font-weight:700;color:#fff;margin-bottom:8px}
.service-card p{font-size:.9rem;color:#8b949e;line-height:1.55}

@media(max-width:1023px){.services-grid{grid-template-columns:1fr 1fr}}
@media(max-width:599px){.services-grid{grid-template-columns:1fr}}

/* ── Process / How It Works ── */
.process-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;position:relative}
.process-grid::before{content:'';position:absolute;top:40px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,transparent,rgba(0,212,255,.3),transparent)}
.process-step{background:rgba(22,27,34,.8);border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:28px 20px;text-align:center;position:relative;transition:border-color .3s,transform .2s}
.process-step:hover{border-color:rgba(0,212,255,.3);transform:translateY(-3px)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:rgba(0,212,255,.12);color:#00d4ff;font-weight:800;font-size:1.1rem;margin-bottom:14px;border:1.5px solid rgba(0,212,255,.3)}
.process-step h3{font-size:.95rem;font-weight:700;color:#fff;margin-bottom:6px}
.process-step p{font-size:.82rem;color:#8b949e;line-height:1.5}

@media(max-width:1023px){
  .process-grid{grid-template-columns:repeat(3,1fr)}
  .process-grid::before{display:none}
}
@media(max-width:599px){
  .process-grid{grid-template-columns:1fr 1fr;gap:14px}
}

/* ── Integration ── */
.integration-content{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.integration-img{border-radius:12px;box-shadow:0 6px 32px rgba(0,0,0,.3);width:100%;aspect-ratio:3/2;object-fit:cover}
.integration-list{display:flex;flex-direction:column;gap:16px}
.integration-item{display:flex;align-items:flex-start;gap:14px;background:rgba(22,27,34,.6);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:18px 20px;transition:border-color .2s}
.integration-item:hover{border-color:rgba(0,212,255,.25)}
.integration-item svg{width:32px;height:32px;stroke:#00d4ff;flex-shrink:0;margin-top:2px}
.integration-item h3{font-size:.95rem;color:#fff;font-weight:600;margin-bottom:4px}
.integration-item p{font-size:.85rem;color:#8b949e}
.integration-item a{font-weight:600}
.integration-note{font-size:.82rem;color:#6e7681;margin-top:20px;font-style:italic}

@media(max-width:767px){
  .integration-content{grid-template-columns:1fr;gap:28px}
}

/* ── Use Cases ── */
.use-cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.use-case{background:rgba(22,27,34,.7);border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:28px 24px;transition:border-color .3s,transform .2s}
.use-case:hover{border-color:rgba(0,212,255,.3);transform:translateY(-3px)}
.use-case svg{width:40px;height:40px;stroke:#00d4ff;margin-bottom:14px}
.use-case h3{font-size:1rem;font-weight:700;color:#fff;margin-bottom:6px}
.use-case p{font-size:.85rem;color:#8b949e;line-height:1.5}

@media(max-width:767px){.use-cases-grid{grid-template-columns:1fr 1fr;gap:14px}}
@media(max-width:479px){.use-cases-grid{grid-template-columns:1fr}}

/* ── Technical Notes ── */
.tech-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:860px;margin:0 auto}
.tech-item{display:flex;align-items:center;gap:12px;background:rgba(22,27,34,.6);border:1px solid rgba(255,255,255,.05);border-radius:8px;padding:16px 20px;font-size:.9rem;color:#c9d1d9;transition:border-color .2s}
.tech-item:hover{border-color:rgba(0,212,255,.2)}
.tech-item svg{width:20px;height:20px;stroke:#00d4ff;flex-shrink:0}

@media(max-width:599px){.tech-list{grid-template-columns:1fr}}

/* ── FAQ ── */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:rgba(22,27,34,.7);border:1px solid rgba(255,255,255,.06);border-radius:10px;overflow:hidden}
.faq-item summary{padding:20px 24px;font-size:1rem;font-weight:600;color:#e4e8ec;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'';width:20px;height:20px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2300d4ff' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-size:contain;background-repeat:no-repeat;transition:transform .25s;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item summary:hover{color:#00d4ff}
.faq-item .faq-answer{padding:0 24px 20px;font-size:.92rem;color:#8b949e;line-height:1.65}

/* ── Final CTA ── */
.final-cta{padding:80px 0;text-align:center;background:linear-gradient(180deg,#161b22 0%,#0d1117 100%);border-top:1px solid rgba(0,212,255,.1)}
.final-cta h2{font-size:2rem;font-weight:800;color:#fff;margin-bottom:14px}
.final-cta p{font-size:1.05rem;color:#8b949e;max-width:580px;margin:0 auto 32px}
.final-cta .cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ── Footer ── */
.site-footer{background:#0a0e13;border-top:1px solid rgba(255,255,255,.06);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand img{width:209px;height:auto;margin-bottom:14px}
.footer-brand p{font-size:.88rem;color:#6e7681;line-height:1.6;max-width:320px}
.footer-title{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:#00d4ff;margin-bottom:14px;font-weight:700}
.footer-nav ul,.footer-contact ul{display:flex;flex-direction:column;gap:8px}
.footer-nav a,.footer-contact a{color:#8b949e;font-size:.88rem;transition:color .2s}
.footer-nav a:hover,.footer-contact a:hover{color:#00d4ff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:20px;text-align:center;font-size:.8rem;color:#484f58}

@media(max-width:767px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
}

/* ── Focus states ── */
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid #00d4ff;outline-offset:3px;border-radius:4px}

/* ── Scan line decoration ── */
.scan-line{position:absolute;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,#00d4ff,transparent);animation:scanMove 3s ease-in-out infinite;opacity:.35;pointer-events:none}
@keyframes scanMove{0%{top:20%}50%{top:80%}100%{top:20%}}

/* 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;
}