:root{
    --bg:#050816;
    --card:rgba(255,255,255,.05);
    --blue:#00d9ff;
    --purple:#8b5cf6;
    --pink:#ff4ecd;
    --text:#ffffff;
    --gray:#cbd5e1;
}

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Segoe UI',sans-serif;
    scroll-behavior:smooth;
}

body{
    background:var(--bg);
    color:var(--text);
    overflow-x:hidden;
}

/* Background */

#bg{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    z-index:-1;
}

/* Navbar */

.navbar{
    position:fixed;
    width:100%;
    top:0;
    left:0;
    padding:20px 8%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:rgba(0,0,0,.25);
    backdrop-filter:blur(15px);
    z-index:1000;
    border-bottom:1px solid rgba(255,255,255,.08);
}

.logo{
    font-size:2rem;
    font-weight:700;
}

.logo span{
    color:var(--blue);
}

.nav-links{
    display:flex;
    list-style:none;
    gap:30px;
}

.nav-links a{
    text-decoration:none;
    color:white;
    transition:.3s;
}

.nav-links a:hover{
    color:var(--blue);
}

.menu-btn{
    display:none;
    font-size:1.5rem;
    cursor:pointer;
}

/* Hero */

.hero{
    min-height:100vh;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:0 8%;
    gap:60px;
}

.hero-content{
    max-width:650px;
}

.badge{
    display:inline-block;
    padding:10px 20px;
    border-radius:50px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.1);
    margin-bottom:20px;
}

.hero h1{
    font-size:4rem;
    margin-bottom:15px;
}

.hero h1 span{
    background:linear-gradient(
        90deg,
        var(--blue),
        var(--pink)
    );
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
}

.hero h2{
    font-size:1.8rem;
    margin-bottom:20px;
    color:var(--gray);
}

.typing-text{
    color:var(--blue);
}

.typing-text::after{
    content:"|";
    animation:blink .8s infinite;
}

@keyframes blink{
    50%{
        opacity:0;
    }
}

.hero p{
    color:var(--gray);
    line-height:1.8;
    margin-bottom:25px;
}

.hero-buttons{
    display:flex;
    gap:15px;
}

.btn{
    padding:15px 30px;
    border-radius:50px;
    text-decoration:none;
    font-weight:600;
    transition:.3s;
}

.primary{
    background:linear-gradient(
        90deg,
        var(--blue),
        var(--pink)
    );
    color:white;
}

.secondary{
    border:1px solid white;
    color:white;
}

.btn:hover{
    transform:translateY(-4px);
}

.socials{
    display:flex;
    gap:20px;
    margin-top:25px;
}

.socials a{
    color:white;
    font-size:1.3rem;
    transition:.3s;
}

.socials a:hover{
    color:var(--blue);
}

.hero-image img{
    width:350px;
    height:350px;
    object-fit:cover;
    border-radius:50%;
    border:5px solid var(--blue);
    box-shadow:
    0 0 25px var(--blue),
    0 0 50px var(--purple);
    transition:.4s;
}

.hero-image img:hover{
    transform:scale(1.05);
}

/* Sections */

section{
    padding:100px 8%;
}

.section-title{
    text-align:center;
    font-size:2.8rem;
    margin-bottom:60px;
    position:relative;
}

.section-title::after{
    content:'';
    width:90px;
    height:4px;
    border-radius:20px;
    display:block;
    margin:12px auto;
    background:linear-gradient(
        90deg,
        var(--blue),
        var(--purple)
    );
}

/* Cards */

.card{
    background:var(--card);
    backdrop-filter:blur(15px);
    border:1px solid rgba(255,255,255,.08);
    padding:25px;
    border-radius:20px;
    transition:.3s;
}

.card:hover{
    transform:translateY(-10px);
    border-color:var(--blue);
    box-shadow:0 0 25px rgba(0,217,255,.15);
}

.card h3{
    color:var(--blue);
    margin-bottom:10px;
}

.card p{
    color:var(--gray);
    line-height:1.8;
}

/* Grid */

.grid{
    display:grid;
    grid-template-columns:
    repeat(auto-fit,minmax(280px,1fr));
    gap:25px;
}

/* Education */

.timeline{
    max-width:850px;
    margin:auto;
    position:relative;
}

.timeline::before{
    content:"";
    position:absolute;
    left:20px;
    top:0;
    width:3px;
    height:100%;
    background:linear-gradient(
        180deg,
        var(--blue),
        var(--purple)
    );
}

.timeline-item{
    position:relative;
    padding-left:70px;
    margin-bottom:40px;
}

.timeline-dot{
    position:absolute;
    left:10px;
    top:10px;
    width:22px;
    height:22px;
    border-radius:50%;
    background:var(--blue);
    box-shadow:0 0 20px var(--blue);
}

.timeline-content{
    background:rgba(255,255,255,.05);
    padding:25px;
    border-radius:20px;
    border:1px solid rgba(255,255,255,.08);
}

.institute{
    color:var(--blue);
}

.year{
    display:block;
    margin:10px 0;
    color:#94a3b8;
}

.grade{
    display:inline-block;
    padding:8px 16px;
    border-radius:20px;
    background:rgba(0,217,255,.15);
    color:var(--blue);
}

/* Skills */

.skills-container{
    display:grid;
    grid-template-columns:
    repeat(auto-fit,minmax(320px,1fr));
    gap:25px;
}

.skill-card{
    background:rgba(255,255,255,.05);
    padding:25px;
    border-radius:20px;
    border:1px solid rgba(255,255,255,.08);
    transition:.3s;
}

.skill-card:hover{
    transform:translateY(-8px);
    box-shadow:0 0 20px rgba(0,217,255,.15);
}

.skill-info{
    display:flex;
    justify-content:space-between;
    margin-bottom:12px;
}

.progress-bar{
    height:10px;
    background:#1f2937;
    border-radius:20px;
    overflow:hidden;
}

.progress{
    height:100%;
    border-radius:20px;
    background:linear-gradient(
        90deg,
        var(--blue),
        var(--purple),
        var(--pink)
    );
}

.python{width:85%;}
.ml{width:70%;}
.web{width:85%;}
.js{width:75%;}
.ai{width:65%;}
.powerbi{width:70%;}
.backend{width:70%;}

/* Certificates */

.cert-icon{
    font-size:3rem;
    color:var(--purple);
    margin-bottom:15px;
    text-shadow:0 0 20px rgba(168,85,247,.6);
}

/* Contact */

.contact-grid{
    display:grid;
    grid-template-columns:
    repeat(auto-fit,minmax(250px,1fr));
    gap:25px;
}

.contact-grid .card{
    text-align:center;
}

.contact-grid i{
    font-size:2rem;
    color:var(--blue);
    margin-bottom:15px;
}

.contact-grid .card:hover i{
    color:var(--pink);
}

/* Footer */

footer{
    text-align:center;
    padding:40px;
    border-top:1px solid rgba(255,255,255,.08);
    color:#94a3b8;
}

.experience-card{
    max-width:850px;
    margin:auto;
}

.experience-label{
    display:inline-block;
    margin-bottom:12px;
    padding:7px 12px;
    border-radius:20px;
    background:rgba(139,92,246,.18);
    color:#c4b5fd;
    font-size:.85rem;
}

/* Mobile */

@media(max-width:900px){

    .hero{
        flex-direction:column-reverse;
        justify-content:center;
        text-align:center;
        padding-top:120px;
    }

    .hero h1{
        font-size:2.8rem;
    }

    .hero-image img{
        width:250px;
        height:250px;
    }

    .hero-buttons{
        justify-content:center;
        flex-wrap:wrap;
    }

    .socials{
        justify-content:center;
    }

    .nav-links{
        display:none;
    }

    .menu-btn{
        display:block;
    }
}

/* Mobile Menu */

.nav-links.active{
    display:flex;
    flex-direction:column;
    position:absolute;
    top:80px;
    right:20px;
    width:220px;
    background:rgba(15,23,42,.98);
    backdrop-filter:blur(15px);
    border:1px solid rgba(255,255,255,.1);
    border-radius:20px;
    padding:20px;
    gap:18px;
    box-shadow:0 0 25px rgba(0,217,255,.2);
}

.nav-links.active a{
    padding:10px;
    border-radius:10px;
    transition:.3s;
}

.nav-links.active a:hover{
    background:rgba(0,217,255,.1);
    color:#00d9ff;
    transform:translateX(5px);
}

/* Scrollbar */

::-webkit-scrollbar{
    width:10px;
}

::-webkit-scrollbar-track{
    background:#050816;
}

::-webkit-scrollbar-thumb{
    background:linear-gradient(
        var(--blue),
        var(--purple)
    );
    border-radius:20px;
}

/* AI Portfolio Assistant */
.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;}
.ai-assistant{position:fixed;right:24px;bottom:24px;z-index:1100;font-family:'Segoe UI',sans-serif;}
.ai-launcher{display:flex;align-items:center;gap:10px;border:0;border-radius:50px;padding:15px 20px;background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;font:700 1rem inherit;box-shadow:0 10px 30px rgba(0,217,255,.3);cursor:pointer;transition:transform .25s,box-shadow .25s;}
.ai-launcher:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(139,92,246,.42);}
.ai-launcher i{font-size:1.2rem;}
.ai-welcome{position:absolute;right:0;bottom:66px;width:286px;padding:18px 38px 18px 18px;border:1px solid rgba(0,217,255,.38);border-radius:18px 18px 4px 18px;background:rgba(9,16,37,.96);backdrop-filter:blur(16px);box-shadow:0 12px 35px rgba(0,0,0,.35);font-size:.88rem;line-height:1.45;animation:ai-pop .45s ease both;}
.ai-welcome strong,.ai-welcome span{display:block;}.ai-welcome strong{color:var(--blue);margin-bottom:4px;}.ai-welcome span{color:var(--gray);}.ai-welcome-close{position:absolute;right:10px;top:8px;border:0;background:transparent;color:var(--gray);font-size:1.35rem;cursor:pointer;}
.ai-panel{position:absolute;right:0;bottom:0;width:min(390px,calc(100vw - 32px));height:530px;display:none;flex-direction:column;overflow:hidden;border:1px solid rgba(0,217,255,.32);border-radius:22px;background:rgba(7,13,31,.98);box-shadow:0 18px 55px rgba(0,0,0,.52);backdrop-filter:blur(18px);}
.ai-panel.open{display:flex;animation:ai-pop .25s ease both;}.ai-panel-header{display:flex;justify-content:space-between;align-items:center;padding:17px;background:linear-gradient(120deg,rgba(0,217,255,.18),rgba(139,92,246,.24));border-bottom:1px solid rgba(255,255,255,.09);}.ai-title{display:flex;gap:11px;align-items:center;}.ai-title>.fa-sparkles{color:var(--blue);font-size:1.35rem;}.ai-title strong,.ai-title span{display:block;}.ai-title strong{font-size:.98rem;}.ai-title span{font-size:.72rem;color:var(--gray);margin-top:3px;}.ai-title span i{font-size:.5rem;color:#41e28a;vertical-align:middle;}.ai-header-actions{display:flex;gap:4px;}.ai-icon-button{width:34px;height:34px;border:0;border-radius:50%;background:transparent;color:var(--gray);cursor:pointer;transition:.2s;}.ai-icon-button:hover,.ai-icon-button.active{background:rgba(0,217,255,.13);color:var(--blue);}.ai-icon-button.listening{color:var(--pink);animation:ai-pulse 1s infinite;}
.ai-messages{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;scroll-behavior:smooth;}.ai-message{max-width:86%;padding:11px 13px;border-radius:14px;font-size:.88rem;line-height:1.5;white-space:pre-line;}.ai-message.assistant{align-self:flex-start;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.07);color:var(--gray);border-bottom-left-radius:4px;}.ai-message.user{align-self:flex-end;background:linear-gradient(135deg,#087f9c,#7552c7);border-bottom-right-radius:4px;}.ai-typing{font-style:italic;color:#94a3b8;}
.ai-suggestions{padding:0 14px 10px;display:flex;gap:7px;overflow-x:auto;}.ai-suggestions button{flex:0 0 auto;border:1px solid rgba(0,217,255,.24);border-radius:14px;padding:7px 10px;background:rgba(0,217,255,.07);color:var(--blue);font:600 .72rem inherit;cursor:pointer;}.ai-suggestions button:hover{background:rgba(0,217,255,.16);}
.ai-input-row{display:flex;gap:7px;align-items:center;padding:12px;border-top:1px solid rgba(255,255,255,.08);}.ai-input-row input{min-width:0;flex:1;border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:11px 13px;background:rgba(255,255,255,.06);color:#fff;font:inherit;outline:none;}.ai-input-row input:focus{border-color:var(--blue);}.ai-input-row input::placeholder{color:#94a3b8;}.ai-send{width:39px;height:39px;border:0;border-radius:13px;background:var(--blue);color:#06202a;cursor:pointer;}.ai-send:hover{filter:brightness(1.12);}
@keyframes ai-pop{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes ai-pulse{50%{box-shadow:0 0 0 7px rgba(255,78,205,.12)}}
@media(max-width:600px){.ai-assistant{right:16px;bottom:16px;}.ai-panel{height:min(540px,calc(100vh - 32px));}.ai-welcome{width:260px;}.ai-launcher{padding:14px 17px;}}
.certificate-link {
  display: block;
  text-decoration: none;
  color: white;
}

.certificate-link span {
  display: inline-block;
  margin-top: 15px;
  color: #00d9ff;
  font-weight: 600;
}