:root{--bg:#050505;--navy:#0A192F;--blue:#007BFF;--cyan:#00CFFF;--text:#fff;--mute:#B0B8C4;--glass:rgba(10,25,47,.55);--line:rgba(0,123,255,.28);--r:18px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:Poppins,Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.wrap{width:min(1140px,92%);margin:auto}
section{padding:96px 0}
.alt{background:linear-gradient(180deg,var(--bg),var(--navy) 50%,var(--bg))}
h1,h2,h3{line-height:1.2}
.sh{text-align:center;margin-bottom:52px}
.sh h2{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700}
.sh h2:after{content:"";display:block;width:64px;height:4px;margin:14px auto 0;border-radius:4px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.sh p{color:var(--mute);margin-top:12px}
.btn{display:inline-block;padding:13px 28px;border-radius:50px;font-weight:600;font-size:.95rem;border:2px solid var(--blue);cursor:pointer;font-family:inherit;color:#fff;background:var(--blue);box-shadow:0 0 22px rgba(0,123,255,.45);transition:.25s}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(0,207,255,.6);background:var(--cyan);border-color:var(--cyan);color:#050505}
.btn.ghost{background:transparent;box-shadow:none}
.btn.ghost:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--r);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
/* nav */
header{position:sticky;top:0;z-index:50;background:rgba(5,5,5,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{font-weight:800;letter-spacing:2px;font-size:1.2rem}.logo span{color:var(--cyan);text-shadow:0 0 14px var(--blue)}
.links{display:flex;gap:22px;list-style:none}
.links a{color:var(--mute);font-size:.9rem;transition:.2s}.links a:hover,.links a.on{color:var(--cyan)}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.7rem;cursor:pointer}
.talk{padding:9px 22px}
/* hero */
#home{position:relative;min-height:calc(100vh - 70px);display:flex;align-items:center;padding:60px 0;overflow:hidden;background:radial-gradient(circle at 80% 30%,rgba(0,123,255,.25),transparent 45%),radial-gradient(circle at 10% 90%,rgba(0,207,255,.12),transparent 40%)}
#fx{position:absolute;inset:0;width:100%;height:100%}
.hero{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.3rem,5.5vw,3.8rem);font-weight:800}
.hero h1 b{color:var(--cyan);text-shadow:0 0 26px rgba(0,123,255,.8)}
.role{color:var(--cyan);font-weight:500;margin:14px 0 18px;font-size:1.05rem}
.hero p{color:var(--mute);max-width:560px}
.cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.photo{justify-self:center;width:min(340px,80%);aspect-ratio:1;border-radius:50%;padding:6px;background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 0 50px rgba(0,123,255,.65),0 0 110px rgba(0,207,255,.25);animation:float 6s ease-in-out infinite}
.photo>div{width:100%;height:100%;border-radius:50%;overflow:hidden;background:var(--navy);display:grid;place-items:center;font-size:5rem;font-weight:800;color:var(--cyan)}
.photo img{width:100%;height:100%;object-fit:cover}
@keyframes float{50%{transform:translateY(-14px)}}
/* about */
.about{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about p{color:var(--mute);margin-bottom:22px}
.facts{padding:30px;display:grid;gap:16px}
.facts div{display:flex;gap:12px;border-bottom:1px solid var(--line);padding-bottom:12px}
.facts div:last-child{border:0;padding:0}
.facts b{min-width:104px;color:var(--cyan);font-weight:600}.facts span{color:var(--mute)}
/* cards */
.grid{display:grid;gap:24px}.g3{grid-template-columns:repeat(3,1fr)}
.card{padding:30px;transition:.3s}
.card:hover{transform:translateY(-6px);border-color:var(--cyan);box-shadow:0 0 30px rgba(0,123,255,.4)}
.ic{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;font-size:1.6rem;background:rgba(0,123,255,.15);border:1px solid var(--line);margin-bottom:18px}
.card h3{font-size:1.1rem;margin-bottom:8px}.card p{color:var(--mute);font-size:.92rem}
.center{text-align:center;margin-top:44px}
/* skills */
.skills{display:grid;grid-template-columns:1fr 1fr;gap:26px 48px}
.sk div:first-child{display:flex;justify-content:space-between;font-weight:500;margin-bottom:8px;font-size:.95rem}
.sk span{color:var(--cyan)}
.bar{height:8px;background:#122a4a;border-radius:8px;overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:8px;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 12px var(--blue);transition:width 1.3s cubic-bezier(.2,.8,.2,1)}
.note{color:var(--mute);font-size:.82rem;text-align:center;margin-top:30px}
/* portfolio */
.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.filters button{background:transparent;border:1px solid var(--line);color:var(--mute);padding:9px 20px;border-radius:50px;cursor:pointer;font-family:inherit;transition:.2s}
.filters button:hover,.filters button.on{background:var(--blue);color:#fff;border-color:var(--blue);box-shadow:0 0 18px rgba(0,123,255,.5)}
.proj{overflow:hidden}
.pimg{height:170px;display:grid;place-items:center;font-size:3rem;position:relative}
.tag{position:absolute;top:12px;left:12px;font-size:.72rem;background:rgba(5,5,5,.75);border:1px solid var(--line);padding:3px 11px;border-radius:50px;color:var(--cyan)}
.pb{padding:22px}.pb small{color:var(--cyan)}.pb h3{margin:4px 0 6px;font-size:1.05rem}.pb p{color:var(--mute);font-size:.88rem;margin-bottom:14px}
.pb a{color:var(--cyan);font-weight:600;font-size:.9rem}.pb a:hover{text-decoration:underline}
.hide{display:none}
/* education */
.edu{display:grid;grid-template-columns:1fr 2fr;gap:28px;align-items:start}
.edu .card h3{color:var(--cyan)}.edu li{list-style:none;color:var(--mute);margin-top:10px;font-size:.92rem}.edu li b{color:#fff}
.cert{padding:18px}.cimg{height:110px;border-radius:12px;border:1px dashed var(--line);display:grid;place-items:center;color:var(--mute);font-size:.82rem;margin-bottom:12px;background:rgba(0,123,255,.06)}
.cert h4{font-size:.95rem}.cert p{color:var(--mute);font-size:.8rem}
/* testimonials */
.tst{max-width:720px;margin:auto;text-align:center;padding:40px 32px;min-height:210px}
.tst q{display:block;font-size:1.1rem;color:var(--mute);font-style:italic;margin-bottom:16px;quotes:none}
.tst b{color:var(--cyan)}
.dots{display:flex;gap:8px;justify-content:center;margin-top:20px}
.dots button{width:11px;height:11px;border-radius:50%;border:0;background:#1b3558;cursor:pointer}.dots button.on{background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
/* blog */
.bt{height:130px;display:grid;place-items:center;font-size:2.4rem}
.blog .pb{padding:20px}.blog .pb p{margin-bottom:10px}
.blog button{background:none;border:0;color:var(--cyan);font-weight:600;cursor:pointer;font-family:inherit;font-size:.9rem}
#art{position:fixed;inset:0;z-index:100;background:rgba(5,5,5,.96);overflow:auto;display:none;padding:60px 4%}
#art.open{display:block}
#art article{max-width:720px;margin:auto}
#art h2{font-size:clamp(1.7rem,4vw,2.4rem);margin:10px 0 22px}
#art p{color:var(--mute);margin-bottom:18px;font-size:1.02rem}
#art h4{color:var(--cyan);margin:26px 0 8px}
#art .btn{margin-top:20px}
/* contact */
.contact{display:grid;grid-template-columns:1fr 1.3fr;gap:36px}
.info{padding:30px}.info p{color:var(--mute);margin-bottom:22px}
.info li{list-style:none;margin-bottom:12px;color:var(--mute);font-size:.93rem}.info li b{color:var(--cyan);display:inline-block;min-width:82px}
form{padding:30px;display:grid;gap:16px}
label{font-size:.85rem;font-weight:500}
input,textarea{width:100%;margin-top:6px;padding:13px 16px;border-radius:12px;border:1px solid var(--line);background:rgba(5,5,5,.6);color:#fff;font:inherit}
input:focus,textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 14px rgba(0,207,255,.35)}
textarea{min-height:130px;resize:vertical}
#msg{font-size:.9rem;min-height:22px}
/* footer */
footer{background:#020202;border-top:1px solid var(--line);padding:60px 0 24px}
.fg{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
footer h4{color:var(--cyan);margin-bottom:12px;font-size:.95rem}
footer li{list-style:none;margin-bottom:7px;color:var(--mute);font-size:.88rem}footer li a:hover{color:var(--cyan)}
footer p{color:var(--mute);font-size:.88rem}
.copy{text-align:center;border-top:1px solid var(--line);margin-top:40px;padding-top:20px;color:var(--mute);font-size:.82rem}
@media(max-width:900px){
.burger{display:block}.talk{display:none}
.links{position:absolute;top:70px;left:0;right:0;background:#050505;flex-direction:column;padding:20px 6%;gap:14px;border-bottom:1px solid var(--line);display:none}
.links.open{display:flex}
.hero,.about,.edu,.contact{grid-template-columns:1fr}
.hero .photo{order:-1;width:min(260px,70%)}
.g3{grid-template-columns:1fr 1fr}.skills{grid-template-columns:1fr}.fg{grid-template-columns:1fr 1fr}
section{padding:72px 0}}
@media(max-width:600px){.g3,.fg{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}