/* Basic reset */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, Arial;line-height:1.5;color:#e9eef6;background:linear-gradient(180deg,#05060a 0%, #081129 60%);}

/* container */
.container{max-width:1100px;margin:0 auto;padding:40px 20px}

/* header */
.site-header{position:sticky;top:0;background:rgba(4,8,20,0.55);backdrop-filter:blur(6px);z-index:40;border-bottom:1px solid rgba(255,255,255,0.03)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo-text{font-weight:700;color:#fff;font-size:20px;letter-spacing:0.6px}
.primary-nav .nav{list-style:none;display:flex;gap:18px}
.primary-nav a{color:#cfe3ff;text-decoration:none;padding:8px 10px;border-radius:8px}
.primary-nav a:hover{background:linear-gradient(90deg,#0ea5e9, #6d28d9);color:#fff}

/* hero */
.hero{padding:80px 0;background:linear-gradient(90deg, rgba(2,6,23,0.6), rgba(6,10,30,0.2));border-bottom:1px solid rgba(255,255,255,0.03)}
.hero-inner{display:flex;gap:40px;align-items:center;justify-content:space-between}
.hero-content{flex:1}
.hero-image{width:420px}
.hero-image img{width:100%;border-radius:16px;box-shadow:0 20px 50px rgba(10,15,30,0.7)}
.lead{color:#d7eaff; margin:14px 0 20px}
.accent{color:#6ee7b7}
.btn{display:inline-block;padding:12px 18px;border-radius:12px;text-decoration:none;font-weight:600}
.btn-primary{background:linear-gradient(90deg,#0ea5e9,#6d28d9);color:white}

/* sections */
.section{padding:60px 0}
.section-title{color:#dff1ff;margin-bottom:20px;font-size:28px}

/* about */
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.about-card{background:linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));padding:22px;border-radius:12px;backdrop-filter:blur(4px);min-height:120px}

/* portfolio */
.portfolio-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.portfolio-item{display:block;border-radius:10px;overflow:hidden;position:relative}
.portfolio-item img{width:100%;height:160px;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.2,.9,.3,1)}
.portfolio-item:hover img{transform:scale(1.08)}

/* footer */
.site-footer{padding:30px 0;text-align:center;color:#9fb7d9}

/* animations */
.animate-up{opacity:0;transform:translateY(18px);transition:all .65s cubic-bezier(.2,.9,.3,1)}
.animate-fade{opacity:0;transform:translateY(6px);transition:all .8s ease}
.delay-1{transition-delay:.12s}
.delay-2{transition-delay:.24s}
.delay-3{transition-delay:.36s}

/* responsiveness */
@media(max-width:900px){
  .hero-inner{flex-direction:column}
  .hero-image{width:100%}
  .portfolio-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .portfolio-grid{grid-template-columns:1fr}
  .primary-nav .nav{display:none}
}