/* ============================================================
   NAGARJUNA ELECTRONICS — Design System
   Palette: Deep Violet / Vivid Purple / Electric Lilac / Signal Amber
   Type: Space Grotesk (display) + Inter (body) + JetBrains Mono (data)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap');

:root{
  --ink:#180F26;
  --violet-950:#1E0B3B;
  --violet-900:#2E1065;
  --violet-700:#5B21B6;
  --violet-600:#7C3AED;
  --violet-500:#8B5CF6;
  --lilac-400:#A78BFA;
  --lilac-200:#DDD6FE;
  --amber:#FBBF24;
  --amber-dark:#D97706;
  --paper:#FAF8FC;
  --paper-dim:#F1ECFA;
  --white:#FFFFFF;
  --line:#E4DBF7;
  --text:#241A38;
  --text-mute:#5D5375;
  --success:#16A34A;

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:24px;
  --shadow-card: 0 4px 24px rgba(46,16,101,0.08);
  --shadow-lift: 0 16px 40px rgba(46,16,101,0.18);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15;margin:0 0 .5em;color:var(--ink);}
p{margin:0 0 1em;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);}

:focus-visible{outline:3px solid var(--amber);outline-offset:2px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-display);font-weight:600;font-size:15px;
  padding:14px 26px;border-radius:100px;border:none;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--amber);color:var(--violet-950);box-shadow:0 8px 20px rgba(251,191,36,.35);}
.btn-primary:hover{background:#ffcc4d;}
.btn-outline{background:transparent;border:1.5px solid var(--lilac-400);color:var(--white);}
.btn-outline:hover{background:rgba(255,255,255,.1);}
.btn-ghost{background:var(--paper-dim);color:var(--violet-700);}
.btn-ghost:hover{background:var(--lilac-200);}
.btn-sm{padding:9px 18px;font-size:13px;}
.btn-block{width:100%;}

/* ---------- Top utility bar ---------- */
.topbar{background:var(--violet-950);color:var(--lilac-200);font-size:13px;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;gap:6px;}
.topbar a{color:var(--lilac-200);}
.topbar .topbar-links{display:flex;gap:18px;align-items:center;}
.topbar strong{color:var(--amber);}

/* ---------- Header ---------- */
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px;}
.brand{display:flex;align-items:center;gap:10px;}
.logo-img{width:190px;max-width:100%;height:auto;display:block;}
.logo-chip{background:var(--white);padding:10px 16px;border-radius:12px;display:inline-flex;box-shadow:0 6px 18px rgba(0,0,0,.18);}
.logo-chip .logo-img{width:170px;}
.main-nav{display:flex;align-items:center;gap:30px;}
.main-nav ul{display:flex;gap:26px;}
.main-nav a{font-weight:600;font-size:14.5px;color:var(--text);position:relative;}
.main-nav a:hover, .main-nav a.active{color:var(--violet-700);}
.header-cta{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--violet-900);margin:5px 0;border-radius:2px;}

/* ---------- Hero: signature diagnostic-scan panel ---------- */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 160% at 15% 0%, var(--violet-700) 0%, var(--violet-900) 45%, var(--violet-950) 100%);
  color:var(--white);padding:64px 0 90px;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:var(--lilac-200);padding:7px 14px;border-radius:100px;margin-bottom:22px;}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(251,191,36,.25);animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.hero h1{font-size:clamp(32px,4.4vw,52px);color:var(--white);margin-bottom:18px;}
.hero h1 .accent{color:var(--amber);}
.hero-sub{font-size:17px;color:var(--lilac-200);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px;}
.hero-trust{display:flex;gap:28px;flex-wrap:wrap;}
.hero-trust .stat b{display:block;font-family:var(--font-mono);font-size:24px;color:var(--amber);}
.hero-trust .stat span{font-size:12.5px;color:var(--lilac-200);}

/* TV diagnostic device mock */
.tv-mock{position:relative;}
.tv-frame{
  background:linear-gradient(155deg,#241645,#160a2b);
  border:1px solid rgba(255,255,255,.12);
  border-radius:20px;padding:14px;box-shadow:var(--shadow-lift);
}
.tv-screen{
  position:relative;border-radius:12px;overflow:hidden;aspect-ratio:16/10;
  background:linear-gradient(160deg,#3B1A78,#150826);
}
.tv-screen img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.scanline{position:absolute;left:0;right:0;height:38%;background:linear-gradient(180deg, rgba(251,191,36,0) 0%, rgba(251,191,36,.22) 50%, rgba(251,191,36,0) 100%);animation:scan 3.2s ease-in-out infinite;}
@keyframes scan{0%{top:-40%;}100%{top:100%;}}
.tv-stand{width:70px;height:14px;background:#160a2b;margin:0 auto;border-radius:0 0 6px 6px;}
.tv-stand-base{width:150px;height:8px;background:#0e0620;margin:0 auto;border-radius:100px;}
.diag-readout{
  position:absolute;bottom:16px;left:16px;right:16px;
  background:rgba(24,15,38,.72);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.15);border-radius:10px;
  padding:10px 14px;font-family:var(--font-mono);font-size:11.5px;color:var(--lilac-200);
  display:flex;justify-content:space-between;gap:10px;
}
.diag-readout .ok{color:#4ADE80;}

/* ---------- TL;DR / Key takeaway (AEO) ---------- */
.tldr{background:var(--paper-dim);border:1px solid var(--line);border-left:5px solid var(--violet-600);border-radius:var(--radius-md);padding:22px 26px;margin:-46px auto 0;max-width:1000px;position:relative;z-index:10;box-shadow:var(--shadow-card);}
.tldr .tldr-label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--violet-700);font-weight:600;margin-bottom:6px;display:block;}
.tldr p{margin:0;font-size:15.5px;color:var(--text);}
.tldr p strong{color:var(--violet-900);}

/* ---------- Sections ---------- */
.section{padding:76px 0;}
.section-tight{padding:50px 0;}
.section-dark{background:var(--violet-950);color:var(--white);}
.section-dim{background:var(--paper-dim);}
.section-head{max-width:640px;margin:0 auto 46px;text-align:center;}
.section-head .eyebrow{background:var(--lilac-200);color:var(--violet-700);border-color:transparent;}
.section-dark .section-head .eyebrow{background:rgba(255,255,255,.08);color:var(--lilac-200);border:1px solid rgba(255,255,255,.18);}
.section-head h2{font-size:clamp(26px,3vw,36px);}
.section-head p{color:var(--text-mute);}
.section-dark .section-head p{color:var(--lilac-200);}

/* ---------- Services grid ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.service-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);padding:26px;transition:transform .2s ease, box-shadow .2s ease;position:relative;}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lift);}
.service-card .icon{width:52px;height:52px;border-radius:14px;background:linear-gradient(145deg,var(--lilac-200),var(--lilac-400));display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--violet-900);}
.service-card h3{font-size:19px;margin-bottom:8px;}
.service-card p{color:var(--text-mute);font-size:14.5px;margin-bottom:14px;}
.service-card .price{font-family:var(--font-mono);font-size:13px;color:var(--violet-700);font-weight:600;margin-bottom:14px;display:block;}
.service-card .card-link{font-weight:600;font-size:14px;color:var(--violet-700);display:inline-flex;align-items:center;gap:6px;}
.badge-featured{position:absolute;top:18px;right:18px;background:var(--amber);color:var(--violet-950);font-family:var(--font-mono);font-size:10.5px;font-weight:700;padding:4px 9px;border-radius:100px;letter-spacing:.04em;}

/* ---------- Process (real sequence -> numbered) ---------- */
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.process-step{position:relative;padding:0 18px;text-align:center;}
.process-step .step-num{font-family:var(--font-mono);font-size:13px;color:var(--amber);font-weight:700;margin-bottom:10px;}
.process-step h4{font-size:16.5px;margin-bottom:6px;}
.process-step p{font-size:13.5px;color:var(--lilac-200);}
.process-line{position:absolute;top:11px;left:calc(50% + 30px);right:calc(-50% + 30px);height:1px;background:rgba(255,255,255,.2);}
.process-step:last-child .process-line{display:none;}

/* ---------- Comparison table (AEO/GEO structured data) ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius-md);border:1px solid var(--line);box-shadow:var(--shadow-card);}
table.compare{width:100%;border-collapse:collapse;background:var(--white);min-width:640px;}
table.compare th,table.compare td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);}
table.compare thead th{background:var(--violet-950);color:var(--white);font-family:var(--font-display);font-weight:600;}
table.compare tbody tr:last-child td{border-bottom:none;}
table.compare tbody tr:hover{background:var(--paper-dim);}
table.compare td.hero-col, table.compare th.hero-col{background:var(--lilac-200);font-weight:700;color:var(--violet-900);}
.check-yes{color:var(--success);font-weight:700;}
.check-no{color:#B91C1C;}

/* ---------- Stats strip ---------- */
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.stat-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;text-align:center;}
.stat-box b{display:block;font-family:var(--font-mono);font-size:30px;color:var(--violet-700);}
.stat-box span{font-size:13px;color:var(--text-mute);}

/* ---------- Testimonials ---------- */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.testi-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;}
.stars{color:var(--amber);letter-spacing:2px;font-size:15px;}
.testi-card p.review{margin:12px 0;font-size:14.5px;color:var(--text);}
.testi-person{display:flex;align-items:center;gap:10px;margin-top:14px;}
.testi-person img{width:40px;height:40px;border-radius:50%;object-fit:cover;}
.testi-person b{font-size:14px;display:block;}
.testi-person span{font-size:12.5px;color:var(--text-mute);}

/* ---------- FAQ (AEO) ---------- */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:var(--font-display);font-weight:600;font-size:16px;color:var(--ink);}
.faq-q .plus{font-family:var(--font-mono);font-size:20px;color:var(--violet-600);transition:transform .2s ease;flex-shrink:0;}
.faq-item[open] .faq-q .plus{transform:rotate(45deg);}
.faq-a{padding:0 4px 20px;color:var(--text-mute);font-size:14.5px;max-width:700px;}

/* ---------- Areas served ---------- */
.areas-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.areas-list span, .areas-list a{background:var(--white);border:1px solid var(--line);padding:9px 16px;border-radius:100px;font-size:13.5px;font-weight:500;color:var(--violet-700);}
.areas-list a{transition:background .15s ease, transform .15s ease;}
.areas-list a:hover{background:var(--lilac-200);transform:translateY(-2px);}

/* ---------- CTA banner ---------- */
.cta-banner{background:linear-gradient(120deg,var(--violet-700),var(--violet-950));border-radius:var(--radius-lg);padding:50px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;color:var(--white);}
.cta-banner h2{color:var(--white);margin-bottom:8px;}
.cta-banner p{color:var(--lilac-200);margin:0;}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:var(--text);}
.field input, .field select, .field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-family:var(--font-body);font-size:14.5px;background:var(--white);color:var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus{border-color:var(--violet-600);outline:none;}
.field-full{grid-column:1/-1;}
.form-card{background:var(--white);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-card);border:1px solid var(--line);}
.form-note{font-size:12.5px;color:var(--text-mute);margin-top:6px;}

/* ---------- Blog ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.blog-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;}
.blog-card img{aspect-ratio:16/9;object-fit:cover;}
.blog-card .body{padding:22px;}
.blog-card .meta{font-family:var(--font-mono);font-size:11.5px;color:var(--violet-700);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px;}
.blog-card h3{font-size:18.5px;margin-bottom:8px;}
.blog-card p{color:var(--text-mute);font-size:14px;}
article.post-content h2{font-size:24px;margin-top:1.6em;}
article.post-content p{color:var(--text);font-size:15.5px;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{font-size:13px;color:var(--text-mute);padding:16px 0;}
.breadcrumb a{color:var(--violet-700);font-weight:600;}

/* ---------- Footer ---------- */
.site-footer{background:var(--violet-950);color:var(--lilac-200);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-grid h4{color:var(--white);font-size:15px;margin-bottom:16px;}
.footer-grid ul li{margin-bottom:10px;font-size:14px;}
.footer-grid ul a:hover{color:var(--amber);}
.footer-brand p{font-size:14px;color:var(--lilac-200);max-width:280px;}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;}
.footer-bottom{padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom a{color:rgba(255,255,255,.7);}

/* ---------- Floating WhatsApp CTA ---------- */
.float-cta{position:fixed;bottom:22px;right:22px;z-index:100;display:flex;flex-direction:column;gap:12px;align-items:flex-end;}
.float-btn{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lift);color:var(--white);font-size:24px;}
.float-btn.wa{background:#25D366;}
.float-btn.call{background:var(--violet-700);}

/* ---------- Utility ---------- */
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;}
  .services-grid, .testi-grid, .stats-strip{grid-template-columns:repeat(2,1fr);}
  .process-steps{grid-template-columns:repeat(2,1fr);row-gap:30px;}
  .process-line{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .blog-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
}
@media (max-width:680px){
  .logo-img{width:150px;}
  .main-nav ul{display:none;}
  .nav-toggle{display:block;}
  .services-grid, .testi-grid, .stats-strip{grid-template-columns:1fr;}
  .topbar .topbar-links{gap:12px;}
  .hero{padding-bottom:70px;}
  .tldr{margin-top:-30px;padding:18px 20px;}
  .cta-banner{padding:30px;flex-direction:column;text-align:center;}
  .footer-grid{grid-template-columns:1fr;}
}

/* Mobile nav drawer */
.mobile-nav{position:fixed;inset:0;background:var(--violet-950);z-index:200;padding:26px 24px;transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;}
.mobile-nav.open{transform:translateX(0);}
.mobile-nav .close-nav{background:none;border:none;color:var(--white);font-size:26px;margin-bottom:20px;cursor:pointer;}
.mobile-nav ul li{margin-bottom:6px;}
.mobile-nav a{display:block;padding:14px 4px;font-family:var(--font-display);font-weight:600;font-size:19px;color:var(--white);border-bottom:1px solid rgba(255,255,255,.08);}