*{box-sizing:border-box}
html{scroll-behavior:smooth}
body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
    background: linear-gradient(135deg, #07111f 0%, #111c32 45%, #0c1728 100%);
    color: #e2e8f0;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    line-height:1.6;
    min-height:100vh;
    position:relative;
    overflow-x:hidden;
}

body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:44px 44px;
    mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 90%);
    pointer-events:none;
    z-index:-2;
}

body::after{
    content:"";
    position:fixed;
    width:28rem;
    height:28rem;
    border-radius:50%;
    filter:blur(80px);
    opacity:.35;
    pointer-events:none;
    z-index:-1;
    top:-6rem;
    right:-6rem;
    background:rgba(124,58,237,.22);
}

:root{
    --bg:#07111f;
    --muted:#94a3b8;
    --accent:#4f8cff;
    --accent-2:#7c3aed;
    --header:#f8fafc;
    --text:#e2e8f0;
    --surface:rgba(255,255,255,.08);
    --border:rgba(255,255,255,.12);
}

.container{max-width:1200px;min-height:50px;margin:0 auto;padding:0 20px}

h1,h2,h3{font-family:'Poppins', 'Inter', sans-serif;color:var(--header);margin:0 0 12px}
h1{font-size:clamp(2.2rem, 4vw, 3.5rem);font-weight:800;line-height:1.1}
h2{font-size:1.7rem;text-align:left;margin-bottom:20px}
h3{font-size:1.05rem}
p{margin:0 0 12px;color:var(--muted)}

section{position:relative;padding:72px 0}
section:not(#hero){border-top:1px solid rgba(255,255,255,.06)}
section:first-of-type{padding-top:80px;border-top:none}

.site-header{position:sticky;top:0;z-index:30;background:rgba(7,17,31,.85);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-weight:800;color:#fff;text-decoration:none;font-size:1.1rem;letter-spacing:.08em}
.primary-nav ul{list-style:none;display:flex;gap:18px;margin:0;padding:0}
.primary-nav a{color:#e2e8f0;text-decoration:none;padding:8px 10px;border-radius:999px;transition:background .2s ease,color .2s ease}
.primary-nav a:hover,.primary-nav a:focus-visible{background:rgba(255,255,255,.08);color:#fff;outline:none}
.nav-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.16);color:#fff;padding:8px 10px;border-radius:8px}

.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:8px;top:8px;width:auto;height:auto;padding:8px 12px;background:#000;color:#fff;border-radius:4px}

.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;min-height:82vh;padding:90px 0 70px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid rgba(79,140,255,.25);background:rgba(79,140,255,.12);color:#dbeafe;font-size:.9rem;font-weight:600;margin-bottom:16px}
.hero h1{margin-bottom:14px}
.hero h1 span{background:linear-gradient(90deg,var(--accent),#7dd3fc);-webkit-background-clip:text;color:transparent}
.subtitle{font-size:1.05rem;max-width:640px;color:#cbd5e1;margin-bottom:18px}
.hero-highlights{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-highlights span{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid var(--border);color:#e2e8f0;font-size:.92rem}
.hero-image{display:flex;justify-content:center}
.profile-photo{width:min(320px,100%);aspect-ratio:1;border-radius:32px;object-fit:cover;display:block;border:4px solid rgba(255,255,255,.12);box-shadow:0 28px 60px rgba(2,8,23,.35)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.btn{display:inline-block;padding:11px 16px;border-radius:999px;text-decoration:none;font-weight:700;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 14px 30px rgba(79,140,255,.22)}
.btn.ghost{background:transparent;border:1px solid var(--border);color:#f8fafc}
.btn.ghost:hover{background:rgba(255,255,255,.08)}

.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:start}
.about-copy{max-width:680px}
.about-copy p{color:#cbd5e1;font-size:1rem}
.about-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.about-card{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:0 20px 60px rgba(2,8,23,.2);backdrop-filter:blur(16px)}
.about-card h3{margin-bottom:18px;font-size:1.15rem}
.skills{display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0;list-style:none}
.skills li{background:rgba(255,255,255,.08);color:#dbeafe;border:1px solid rgba(255,255,255,.1);display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;font-size:.95rem;transition:transform 180ms ease,background 180ms ease,box-shadow 180ms ease}
.skills li:hover{transform:translateY(-3px);background:rgba(79,140,255,.16);box-shadow:0 12px 24px rgba(79,140,255,.12)}
.skill-icon{display:inline-flex;align-items:center;justify-content:center;font-size:1rem;line-height:1}

.projects-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{display:block;position:relative;background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:0 14px 34px rgba(2,8,23,.16);text-decoration:none;color:inherit;backdrop-filter:blur(12px);transition:transform 220ms ease,box-shadow 220ms ease,border-color 220ms ease}
.card-media{height:180px;background:linear-gradient(135deg, rgba(79,140,255,.20), rgba(124,58,237,.18));display:flex;align-items:center;justify-content:center;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}
.card:hover .card-media img,.card:focus-within .card-media img{transform:scale(1.05)}
.card-body{padding:16px}
.card h3{margin:0 0 8px;color:#f8fafc}
.card p{color:#cbd5e1}
.card-hover-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(.8);display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.95);color:var(--accent);font-size:1.1rem;opacity:0;transition:opacity 220ms ease,transform 220ms ease,background 220ms ease;box-shadow:0 10px 30px rgba(0,0,0,.08)}
.card:hover, .card:focus-within{transform:translateY(-8px);box-shadow:0 20px 40px rgba(2,8,23,.24);border-color:rgba(79,140,255,.35)}
.card:focus-within{outline:3px solid rgba(79,140,255,.18)}
.card:hover .card-hover-icon,.card:focus-within .card-hover-icon{opacity:1;transform:translate(-50%,-50%) scale(1)}

.certifications .muted{color:var(--muted);margin-bottom:12px}
.cert-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:12px}
.cert-item{display:block;background:var(--surface);border:1px solid var(--border);padding:16px;border-radius:16px;text-decoration:none;color:inherit;box-shadow:0 12px 30px rgba(2,8,23,.14);backdrop-filter:blur(12px);transition:transform 200ms ease,box-shadow 200ms ease,border-color 200ms ease}
.cert-item h3{font-size:1rem;margin:0 0 8px;color:#f8fafc}
.cert-item p{margin:0;color:var(--muted);font-size:.95rem}
.cert-item:hover,.cert-item:focus{transform:translateY(-6px);box-shadow:0 16px 36px rgba(2,8,23,.2);border-color:rgba(79,140,255,.3)}
.cert-item:focus{outline:3px solid rgba(79,140,255,.18)}

.social-links{display:flex;gap:12px;justify-content:center;margin-top:12px;flex-wrap:wrap}
.social-link{display:inline-block;padding:10px 14px;border-radius:999px;border:1px solid var(--border);text-decoration:none;color:#f8fafc;background:rgba(255,255,255,.08);font-weight:600;box-shadow:0 8px 20px rgba(2,8,23,.08);backdrop-filter:blur(8px)}
.social-link:hover{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#fff;border-color:transparent;box-shadow:0 8px 24px rgba(79,140,255,.16)}

.site-footer{background:rgba(2,6,23,.95);color:#cbd5e1;padding:28px 0;text-align:center;border-top:1px solid rgba(255,255,255,.08)}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.projects ul{list-style:none}

@media (prefers-reduced-motion:reduce){
    .card,.cert-item,.btn{transition:none;transform:none}
}

@media (max-width:900px){
    .hero{grid-template-columns:1fr;gap:28px;padding:72px 0 56px}
    .hero-content{text-align:center}
    .hero-highlights,.hero-actions{justify-content:center}
    .projects-grid{grid-template-columns:repeat(2,1fr)}
    .about-grid{grid-template-columns:1fr}
    .cert-list{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:640px){
    .nav-toggle{display:inline-block}
    .primary-nav{display:none}
    .primary-nav[aria-hidden="false"]{display:block;background:rgba(7,17,31,.96);position:absolute;left:0;right:0;top:64px;padding:12px}
    .primary-nav ul{flex-direction:column;gap:10px}
    .hero{padding:60px 0 40px}
    .hero-image{margin:0 auto}
    .projects-grid,.cert-list{grid-template-columns:1fr}
    .about-card{padding:22px}
}