:root{
  --ai-ink:#0b1222;
  --ai-void:#0a0f1b;
  --ai-cyan:#3aa4ff;
  --ai-mint:#24c78b;
  --ai-violet:#5c6cff;
  --ai-pink:#e34bbf;
  --ai-slate:#9aa6bd;
  --ai-glow:rgba(58,164,255,.18);
  --ai-card:rgba(255,255,255,.05);
  --ai-border:rgba(255,255,255,.1);
}

body{
  font-family:"Space Grotesk",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  background:var(--ai-void);
  color:#e5e7eb;
}

h1,h2,h3{
  font-family:"Sora","Space Grotesk",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  letter-spacing:-.02em;
}

main{
  background:
    radial-gradient(1000px 420px at 12% -10%, rgba(92,108,255,.2), transparent 60%),
    radial-gradient(700px 380px at 88% 8%, rgba(58,164,255,.18), transparent 60%),
    linear-gradient(180deg,#0a0f1b 0%, #0b1222 100%);
}

/* Header */
.site-header{
  background:rgba(10,15,27,.78);
  border-bottom:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(12px);
  box-shadow:0 10px 24px rgba(5,10,20,.4);
}

.nav-links a{
  color:#e2e8f0;
}

.nav-links a::after{
  background:linear-gradient(90deg,var(--ai-cyan),var(--ai-pink));
}

.dropdown-menu{
  background:rgba(10,14,30,.95);
  border:1px solid rgba(255,255,255,.08);
}

.dropdown-menu a{
  color:#e2e8f0;
}

.dropdown-menu a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
}

.cta-btn{
  background:linear-gradient(120deg,var(--ai-cyan),var(--ai-violet));
  box-shadow:0 10px 22px rgba(58,164,255,.25);
}

.cta-btn:hover{
  box-shadow:0 16px 30px rgba(33,230,255,.4);
}

/* Hero */
.hero{
  min-height:68vh;
  position:relative;
  overflow:hidden;
  text-align:left;
  background:
    radial-gradient(520px 220px at 18% 18%, rgba(92,108,255,.22), transparent 70%),
    radial-gradient(560px 240px at 85% 0%, rgba(58,164,255,.22), transparent 70%),
    linear-gradient(180deg,#0b1222 0%, #0a0f1b 60%, #0a0f1b 100%);
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:90px 90px;
  opacity:.35;
  pointer-events:none;
}

.hero::after{
  content:"";
  position:absolute;
  inset:-35% 12% 32% 12%;
  background:radial-gradient(circle at 50% 50%, rgba(58,164,255,.14), transparent 62%);
  filter:blur(28px);
  pointer-events:none;
}

.hero-content{
  position:relative;
  z-index:2;
}

.hero-text h1{
  font-size:3.25rem;
  line-height:1.06;
  color:#f8fafc;
  text-shadow:0 8px 26px rgba(0,0,0,.32);
}

.hero-text p{
  font-size:1.2rem;
  color:#cbd5f5;
  max-width:580px;
}

.btn-primary{
  background:linear-gradient(120deg,var(--ai-cyan),var(--ai-violet));
  color:#fff;
  border:1px solid rgba(255,255,255,.2);
  box-shadow:0 10px 26px rgba(58,164,255,.3);
}

.btn-secondary{
  border:1px solid rgba(255,255,255,.4);
  color:#fff;
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(6px);
}

/* Stats */
.stats{
  background:linear-gradient(180deg,#0b1222 0%, #0f152a 100%);
  padding:70px 20px;
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.stats-container{
  max-width:1200px;
  margin:auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:40px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.08);
  border-radius:24px;
  padding:40px;
  box-shadow:0 16px 46px rgba(2,6,23,.45);
}

.stats-item{
  text-align:center;
}

.stats-item h2{
  font-size:3rem;
  line-height:1.2;
  font-weight:800;
  color:#e2ecff;
  margin-bottom:10px;
}

.stats-item p{
  font-size:1.1rem;
  color:var(--ai-slate);
}

/* Services */
#services{
  background:linear-gradient(180deg,#0b1222 0%, #0b1022 100%);
  padding:90px 20px;
}

.services-header{
  text-align:center;
  max-width:700px;
  margin:0 auto 50px;
}

.services-header h2{
  font-size:2.5rem;
  font-weight:800;
  margin-bottom:15px;
  color:#f8fafc;
}

.services-header p{
  font-size:1.1rem;
  line-height:1.6;
  color:#b6c0d1;
}

.services-container{
  max-width:1100px;
  margin:auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:32px;
}

.service-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 18px 40px rgba(2,6,23,.4);
  border-radius:20px;
  padding:40px 30px;
  text-align:left;
  position:relative;
  overflow:hidden;
  transition:transform .25s ease,box-shadow .3s;
}

.service-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 0% 0%, rgba(58,164,255,.16), transparent 55%);
  opacity:0;
  transition:opacity .3s ease;
}

.service-card:hover{
  transform:translateY(-8px);
  box-shadow:0 26px 60px rgba(2,6,23,.6);
}

.service-card:hover::before{
  opacity:1;
}

.service-card .icon{
  font-size:2.5rem;
  margin-bottom:20px;
  display:inline-flex;
  justify-content:center;
  align-items:center;
  width:60px;
  height:60px;
  border-radius:50%;
  background:rgba(58,164,255,.12);
  border:1px solid rgba(58,164,255,.35);
  color:#fff;
}

.service-card h3{
  font-size:1.4rem;
  font-weight:700;
  margin-bottom:12px;
  color:#f8fafc;
}

.service-card p{
  font-size:1rem;
  margin-bottom:15px;
  line-height:1.6;
  color:#a6b1c7;
}

.service-card a{
  font-weight:600;
  font-size:.95rem;
  text-decoration:none;
  color:#8ab4ff;
}

.service-card a:hover{
  text-decoration:underline;
}

/* Portfolio */
#portfolio{
  background:linear-gradient(180deg,#0b1022 0%, #0b1222 100%);
  padding:90px 20px;
}

.portfolio-header{
  text-align:center;
  max-width:700px;
  margin:0 auto 50px;
}

.portfolio-header h2{
  font-size:2.5rem;
  font-weight:800;
  margin-bottom:15px;
  color:#f8fafc;
}

.portfolio-header p{
  font-size:1.1rem;
  line-height:1.6;
  color:#b6c0d1;
}

.portfolio-container{
  max-width:1100px;
  margin:auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:30px;
}

.portfolio-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 14px 36px rgba(2,6,23,.35);
  border-radius:16px;
  padding:30px;
  transition:transform .2s ease,box-shadow .2s ease;
}

.portfolio-card:hover{
  transform:translateY(-5px);
  box-shadow:0 20px 46px rgba(2,6,23,.5);
}

.portfolio-card h3{
  color:#7fd3ff;
}

.portfolio-card p{
  color:#b6c0d1;
}

/* Testimonials */
#testimonials{
  background:linear-gradient(180deg,#0b1222 0%, #0b1228 100%);
  padding:90px 20px;
}

.section-header{
  text-align:center;
  margin-bottom:50px;
  max-width:1100px;
  margin-left:auto;
  margin-right:auto;
  padding:0 20px;
}

.section-header h2{
  font-size:2.2rem;
  font-weight:800;
  color:#f8fafc;
  letter-spacing:-.02em;
}

.section-header p{
  color:#b6c0d1;
  font-size:1.1rem;
  margin-top:10px;
}

.testimonials-container{
  max-width:1100px;
  margin:auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:30px;
}

.testimonial-card{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 12px 34px rgba(2,6,23,.35);
  padding:32px;
  border-radius:20px;
}

.testimonial-card p{
  color:#cbd5f5;
  font-style:italic;
  margin-bottom:16px;
  line-height:1.7;
}

.testimonial-card h3{
  color:#f8fafc;
  font-size:1.05rem;
  font-weight:700;
}

.testimonial-card span{
  color:#9aa6bd;
  display:block;
  font-size:0.9rem;
  margin-top:4px;
}

/* Why choose us */
#why-choose-us{
  background:linear-gradient(180deg,#0b1228 0%, #0b1222 100%);
  padding:90px 20px;
}

.why-container{
  max-width:1100px;
  margin:auto;
}

.why-grid{
  display:grid;
  gap:25px;
  margin-top:30px;
}

.why-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 12px 35px rgba(2,6,23,.4);
  padding:25px;
  border-radius:12px;
}

.why-card.alt{
  border-left:4px solid #7aa2ff;
}

.why-card h3{
  color:#f8fafc;
}

.why-card p{
  color:#b6c0d1;
}

/* FAQs */
#faqs{
  background:linear-gradient(180deg,#0b1222 0%, #0b101f 100%);
  padding:80px 20px;
}

.faq-container{
  max-width:1000px;
  margin:auto;
}

#faqs h2{
  color:#f8fafc;
}

.accordion{
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.035);
}

.accordion-button{
  background:transparent;
  color:#e2e8f0;
}

.accordion-body{
  background:transparent;
  color:#b6c0d1;
}

.accordion-button::after{
  color:#8ab4ff;
}

.faq-link{
  color:#8ab4ff;
}

/* CTA */
.cta-section{
  background:linear-gradient(120deg,#0b1222 0%, #151a34 50%, #0b1222 100%);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.cta-section h2{
  color:#f8fafc;
}

.cta-section p{
  color:#cbd5f5;
}

/* Footer */
.site-footer{
  background:#070a14;
}

/* Responsive */
@media (max-width:900px){
  .hero-text h1{
    font-size:2.6rem;
  }
  .stats-container{
    padding:30px;
  }
}

@media (max-width:768px){
  .hero{
    text-align:center;
    min-height:600px;
  }
  .hero-text p{
    margin:0 auto 20px;
  }
}

/* ── Mobile Performance & SEO Fixes ─────────────────────────────────────────
   All rules below are MOBILE-ONLY (max-width guards).
   Desktop layout is NOT affected.
   ─────────────────────────────────────────────────────────────────────────── */

/* 600px — reduce hero height, scale fonts, tighten spacing */
@media (max-width:600px){
  /* Hero: remove excessive min-height so CTA is above the fold */
  .hero{
    min-height:auto;
    padding:52px 20px 44px;
  }
  .hero-text h1{
    font-size:1.85rem;
    line-height:1.18;
  }
  .hero-text p{
    font-size:1rem;
  }
  /* Stats: reduce padding so section feels compact on phones */
  .stats{
    padding:40px 16px;
  }
  .stats-container{
    padding:24px 16px;
    gap:20px;
  }
  .stats-item h2{
    font-size:2.25rem;
  }
  /* Services section: tighter */
  #services{
    padding:60px 16px;
  }
  .services-header h2{
    font-size:1.75rem;
  }
  /* Tap targets: ensure ≥44px on all primary touch elements */
  .btn-primary,
  .btn-secondary,
  .cta-btn{
    min-height:44px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }
}

/* 480px — further font scaling for mid-size phones */
@media (max-width:480px){
  .hero-text h1{
    font-size:1.65rem;
  }
  .stats-item h2{
    font-size:2rem;
  }
  .services-header h2{
    font-size:1.6rem;
  }
}

/* 375px — iPhone standard (Googlebot Smartphone viewport) */
@media (max-width:375px){
  .hero-text h1{
    font-size:1.5rem;
  }
  .stats-item h2{
    font-size:1.75rem;
  }
  .services-header h2{
    font-size:1.5rem;
  }
}

/* 320px — smallest supported devices */
@media (max-width:320px){
  .hero-text h1{
    font-size:1.35rem;
  }
  .stats-item h2{
    font-size:1.6rem;
  }
  .services-header h2{
    font-size:1.4rem;
  }
}