:root{
  --bg: #eaf2fb;
  --ink: #101a2b;
  --ink-soft: #55647a;
  --purple: #2f7bf6;
  --purple-2: #1656d1;
  --purple-light: #6fb2ff;
  --glass-bg: rgba(255,255,255,0.28);
  --glass-bg-strong: rgba(255,255,255,0.4);
  --glass-border: rgba(255,255,255,0.85);
  --glass-shadow: 0 8px 32px rgba(22, 86, 209, 0.16);
  --radius: 22px;
  --maxw: 1180px;
}

*{box-sizing:border-box; margin:0; padding:0;}

html{scroll-behavior:smooth;}

body{
  font-family:'Inter', sans-serif;
  color:var(--ink);
  background: var(--bg);
  overflow-x:hidden;
  position:relative;
}

h1,h2,h3,h4{ font-family:'Poppins', sans-serif; line-height:1.15; }

.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }

/* Background decor */
.bg-decor{ position:fixed; inset:0; z-index:-1; overflow:hidden; }
.blob{ position:absolute; border-radius:50%; filter: blur(90px); opacity:0.6; }
.blob-1{ width:560px; height:560px; background: radial-gradient(circle, #7fb6ff, transparent 70%); top:-160px; right:-140px; }
.blob-2{ width:500px; height:500px; background: radial-gradient(circle, #9fe3ff, transparent 70%); top:520px; left:-180px; }
.blob-3{ width:460px; height:460px; background: radial-gradient(circle, #bcd4ff, transparent 70%); bottom:-140px; right:10%; }
.blob-4{ width:380px; height:380px; background: radial-gradient(circle, #5b9bff, transparent 70%); top:200px; left:40%; opacity:0.4; }

/* Glass utility */
.glass{
  position: relative;
  background: linear-gradient(135deg, var(--glass-bg-strong), var(--glass-bg));
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.75), inset 0 0 40px rgba(255,255,255,0.15);
  border-radius: var(--radius);
  overflow: hidden;
}
.glass::before{
  content:"";
  position:absolute; inset:0; pointer-events:none;
  background: linear-gradient(120deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0) 35%);
  mix-blend-mode: overlay;
}
.glass::after{
  content:"";
  position:absolute; top:0; left:0; right:0; height:1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.9), transparent);
}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 22px; border-radius:999px;
  font-weight:600; font-size:14px; text-decoration:none;
  border:1px solid transparent; cursor:pointer; transition: transform .2s ease, box-shadow .2s ease;
}
.btn:hover{ transform: translateY(-2px); }
.icon-svg{ width:20px; height:20px; display:block; }
.btn-dark{ background: var(--ink); color:#fff; box-shadow: 0 10px 24px rgba(23,22,43,0.25); }
.btn-dark:hover{ box-shadow: 0 14px 30px rgba(23,22,43,0.32); }
.btn-outline{ background: rgba(255,255,255,0.6); color: var(--ink); border-color: rgba(23,22,43,0.15); }
.btn-outline:hover{ background: #fff; }

.eyebrow{
  display:inline-block; font-size:12px; font-weight:700; letter-spacing:1.6px;
  color: var(--purple-2); text-transform:uppercase; margin-bottom:10px;
}
.eyebrow.center{ display:block; text-align:center; }
.section-title{ font-size: clamp(26px, 3.4vw, 38px); font-weight:700; margin-bottom:44px; }
.section-title.center{ text-align:center; }
.section-title.small{ font-size:22px; margin-bottom:28px; }

.gradient-text{
  background: linear-gradient(90deg, var(--purple-2), var(--purple-light));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

.link-arrow{
  display:inline-flex; align-items:center; gap:8px; margin-top:18px;
  font-weight:600; color: var(--ink); text-decoration:none;
  border-bottom: 2px solid var(--purple-light); padding-bottom:2px;
}

/* Navbar */
.navbar{
  position: fixed; left:0; right:0; bottom: calc(22px + env(safe-area-inset-bottom)); top:auto; z-index:50;
  padding: 0; pointer-events:none;
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  background: rgba(255,255,255,0.35);
  backdrop-filter: blur(26px) saturate(180%);
  -webkit-backdrop-filter: blur(26px) saturate(180%);
  border:1px solid rgba(255,255,255,0.85);
  border-radius: 999px;
  padding: 10px 14px 10px 24px;
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.7);
  pointer-events:auto;
}

.nav-links{ flex:1; display:flex; justify-content:center; gap:26px; }
.nav-links a{ text-decoration:none; color: var(--ink-soft); font-weight:500; font-size:14.5px; transition:color .2s; white-space:nowrap; }
.nav-links a:hover{ color: var(--purple-2); }

.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span{ width:22px; height:2px; background: var(--ink); border-radius:2px; }

/* Hero */
.hero{ padding: 70px 0 40px; }
.hero-grid{ display:grid; grid-template-columns: 1.1fr 0.9fr; gap:40px; align-items:center; }

.name-row{ display:flex; align-items:center; gap:18px; }
.name-avatar{
  height: clamp(80px, 10.5vw, 120px); width: clamp(80px, 10.5vw, 120px);
  aspect-ratio:1/1; border-radius:20px; object-fit:cover; flex-shrink:0;
  box-shadow: 0 8px 20px rgba(22,86,209,0.18); border:2px solid #fff;
}
.hero-copy h1{ font-size: clamp(36px, 5vw, 56px); font-weight:800; margin: 6px 0 8px; }
.hero-copy h2{ font-size: clamp(18px, 2.4vw, 24px); font-weight:600; margin-bottom:18px; }
.dot{ color: var(--purple-2); }
.lead{ color: var(--ink-soft); font-size:16px; max-width:520px; margin-bottom:30px; line-height:1.7; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:36px; }

.trusted span{ display:block; font-size:12px; color: var(--ink-soft); margin-bottom:10px; letter-spacing:.5px; text-transform:uppercase; }
.trusted-label-2{ margin-top:16px; }
.trusted-logos{ display:flex; align-items:center; gap:24px; flex-wrap:wrap; }
.trusted-logos img{ height:32px; width:auto; max-width:76px; object-fit:contain; }
.trusted-logos img.logo-rounded{ height:34px; border-radius:9px; }

.hero-visual{ position:relative; min-height:600px; display:flex; align-items:center; justify-content:center; }
.avatar-card{
  width:490px; max-width:90vw; padding:18px 18px 26px; text-align:center; position:relative; z-index:2;
}
.avatar-photo{
  width:100%; height:auto; border-radius:18px; margin-bottom:16px; display:block;
}
.avatar-name{ font-weight:700; margin-bottom:4px; }
.avatar-role{ font-size:13px; color: var(--ink-soft); }

.float-card{
  position:absolute; display:flex; align-items:center; gap:10px; padding:14px 18px; z-index:3;
}
.float-card strong{ display:block; font-size:18px; font-family:'Poppins',sans-serif; }
.float-card span{ font-size:11px; color: var(--ink-soft); }
.float-icon{
  width:38px; height:38px; border-radius:11px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, #eaf3ff, #d3e7ff);
  color: var(--purple-2);
}
.float-icon .icon-svg{ width:19px; height:19px; }

.card-exp{ top:10px; right:-10px; animation: floaty 5s ease-in-out infinite; }
.card-cert{ bottom:30px; left:-20px; animation: floaty 6s ease-in-out infinite 1s; }

@keyframes floaty{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-10px); }
}

/* About */
.about{ padding: 30px 0; }
.about-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:40px; padding: 46px; align-items:center; }
.about-left h3{ font-size: clamp(24px,3vw,32px); margin-bottom:24px; }
.stat-row{ display:flex; gap:30px; }
.stat strong{ display:block; font-family:'Poppins',sans-serif; font-size:26px; color: var(--purple-2); }
.stat span{ font-size:12.5px; color: var(--ink-soft); }
.about-right p{ color: var(--ink-soft); line-height:1.75; margin-bottom:14px; }

/* Services */
.services{ padding: 80px 0 40px; }
.service-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap:22px; margin-bottom:60px; }
.service-card{ padding:26px 22px; transition: transform .25s ease; }
.service-card:hover{ transform: translateY(-6px); }
.service-card h4{ font-size:17px; margin-bottom:8px; }
.service-card p{ font-size:13.5px; color: var(--ink-soft); line-height:1.6; }

.tools{ text-align:center; }
.tool-list{ display:flex; flex-wrap:wrap; justify-content:center; gap:14px; }
.tool-chip{ padding:12px 22px; font-size:14px; font-weight:600; color: var(--ink); }

/* Experience timeline */
.experience{ padding: 80px 0 40px; }
.timeline{ display:flex; flex-direction:column; gap:20px; max-width:880px; margin:0 auto; }
.timeline-item{ padding:26px 30px; }
.timeline-top{ display:flex; align-items:flex-start; gap:16px; margin-bottom:4px; }
.timeline-logo{
  width:52px; height:52px; border-radius:14px; flex-shrink:0; padding:8px;
  background:#fff; display:flex; align-items:center; justify-content:center;
  box-shadow: 0 4px 14px rgba(22,86,209,0.14);
}
.timeline-logo img{ width:100%; height:100%; object-fit:contain; }
.timeline-head{ flex:1; display:flex; justify-content:space-between; align-items:baseline; flex-wrap:wrap; gap:8px; }
.timeline-head h4{ font-size:18px; }
.timeline-date{ font-size:12.5px; color: var(--purple-2); font-weight:600; white-space:nowrap; }
.timeline-company{ font-size:13.5px; color: var(--ink-soft); font-weight:600; margin-bottom:10px; margin-left:68px; }
.timeline-item p:last-child{ color: var(--ink-soft); font-size:14px; line-height:1.7; margin-left:68px; }

/* Projects */
.projects{ padding: 80px 0 40px; }
.projects-sub{ display:flex; justify-content:space-between; align-items:baseline; flex-wrap:wrap; gap:10px; max-width:1000px; margin:0 auto 18px; }
.projects-sub h4{ font-size:17px; }
.projects-sub .link-arrow{ margin-top:0; font-size:13.5px; }
.projects-sub-kaggle{ margin-top:44px; }
.section-link-center{ text-align:center; margin-bottom:28px; }
.section-link-center .link-arrow{ margin-top:0; }
.kaggle-section{ padding: 80px 0 40px; }
.papers{ padding: 80px 0 40px; }
.papers-note{ text-align:center; color: var(--ink-soft); font-size:13.5px; max-width:560px; margin:-24px auto 34px; }

.repo-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap:18px; max-width:1000px; margin:0 auto; }
.repo-card{ display:block; padding:20px 22px; text-decoration:none; color:inherit; transition: transform .25s ease; }
.repo-card:hover{ transform: translateY(-5px); }
.repo-card h5{ font-family:'Poppins',sans-serif; font-size:14.5px; font-weight:600; margin-bottom:8px; word-break:break-word; }
.repo-card p{ font-size:13px; color: var(--ink-soft); line-height:1.55; margin-bottom:14px; min-height:40px; }
.repo-meta{ display:flex; align-items:center; font-size:12px; color: var(--ink-soft); font-weight:500; }
.lang-dot{ width:9px; height:9px; border-radius:50%; display:inline-block; margin-right:7px; }
.lang-ts{ background:#3178c6; }
.lang-js{ background:#f1c40f; }
.lang-py{ background:#3572A5; }
.lang-ipynb{ background:#e8732c; }

.kaggle-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap:16px; max-width:1000px; margin:0 auto; }
.kaggle-card{
  display:flex; flex-direction:column; gap:12px; padding:20px 22px;
  text-decoration:none; color: var(--ink); transition: transform .25s ease;
}
.kaggle-card:hover{ transform: translateY(-5px); }
.kaggle-badge{
  align-self:flex-start; font-family:'Poppins',sans-serif; font-weight:700; font-size:13px;
  color:#fff; background: linear-gradient(135deg, var(--purple-2), var(--purple-light));
  padding:6px 14px; border-radius:999px;
}
.kaggle-card h5{ font-size:14.5px; font-weight:600; line-height:1.4; }

.paper-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap:16px; max-width:1000px; margin:0 auto; }
.paper-card{
  display:flex; flex-direction:column; padding:18px 20px; text-decoration:none; color:inherit;
  transition: transform .25s ease;
}
.paper-card:hover{ transform: translateY(-5px); }
.paper-tag{
  align-self:flex-start; font-size:10.5px; font-weight:700; letter-spacing:.4px; text-transform:uppercase;
  color: var(--purple-2); background: linear-gradient(135deg, #eaf3ff, #d3e7ff);
  padding:4px 10px; border-radius:999px; margin-bottom:10px;
}
.paper-card h5{ font-size:13.5px; font-weight:600; line-height:1.45; margin-bottom:12px; flex:1; }
.paper-link{ display:inline-flex; align-items:center; gap:6px; font-size:12.5px; font-weight:600; color: var(--purple-2); }

/* Work for Society */
.society{ padding: 80px 0 40px; }
.society-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap:24px; max-width:640px; margin:0 auto; }
.society-card{ display:block; text-decoration:none; color:inherit; transition: transform .25s ease; }
.society-card:hover{ transform: translateY(-6px); }
.society-banner{
  position:relative; padding:36px 30px 28px; min-height:190px;
  display:flex; flex-direction:column; justify-content:space-between;
  background:
    radial-gradient(ellipse 380px 180px at 15% 25%, rgba(255,255,255,0.72) 0%, transparent 62%),
    radial-gradient(ellipse 300px 160px at 80% 18%, rgba(255,255,255,0.65) 0%, transparent 62%),
    radial-gradient(ellipse 220px 120px at 50% 55%, rgba(255,255,255,0.38) 0%, transparent 65%),
    linear-gradient(170deg, #1085d4 0%, #2aa3e8 15%, #52bdf2 32%, #80d3f8 52%, #b3e6fc 70%, #d6f1ff 84%, #edf8ff 94%, #f6fbff 100%);
}
.society-logo{ height:44px; width:auto; object-fit:contain; }
.society-banner-title{ color:#fff; font-size:22px; font-weight:800; line-height:1.35; margin-top:22px; }
.lime{ color:#c8f135; }
.society-body{ padding:22px 26px 26px; }
.society-body h4{ font-size:17px; margin-bottom:8px; }
.society-body p{ font-size:13.5px; color: var(--ink-soft); line-height:1.65; margin-bottom:14px; }
.society-body .link-arrow{ margin-top:0; }

/* Education */
.education{ padding: 80px 0 40px; }
.edu-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; margin-bottom:34px; max-width:980px; margin-left:auto; margin-right:auto; }
.edu-card{ padding:28px; }
.edu-icon{
  width:44px; height:44px; border-radius:13px; margin-bottom:14px;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, #eaf3ff, #d3e7ff); color: var(--purple-2);
}
.edu-icon .icon-svg{ width:22px; height:22px; }
.edu-icon img{ width:100%; height:100%; object-fit:contain; padding:6px; background:#fff; border-radius:13px; }
.edu-card h4{ font-size:17px; margin-bottom:4px; }
.edu-date{ font-size:12px; color: var(--purple-2); font-weight:600; }
.edu-card p{ margin-top:8px; color: var(--ink-soft); font-size:13.5px; }
.edu-note{ font-size:12.5px; font-style:italic; color: var(--purple-2); margin-top:10px; }

.cert-list{ display:flex; flex-wrap:wrap; justify-content:center; gap:12px; max-width:900px; margin:0 auto; }
.cert-chip{ padding:11px 18px; font-size:13px; font-weight:500; color: var(--ink-soft); }

/* Testimonials */
.testimonials{ padding: 80px 0 40px; }
.testimonial-grid{ display:grid; grid-template-columns: repeat(2,1fr); gap:24px; max-width:900px; margin:0 auto; }
.testimonial-card{ padding:30px; }
.testimonial-card p{ font-size:14.5px; color: var(--ink-soft); line-height:1.75; margin-bottom:22px; font-style:italic; }
.testimonial-person{ display:flex; align-items:center; gap:12px; }
.avatar-sm{
  width:42px; height:42px; border-radius:50%; flex-shrink:0; display:flex; align-items:center; justify-content:center;
  background:#fff; border:1px solid rgba(22,86,209,0.15); box-shadow: 0 2px 8px rgba(22,86,209,0.12);
}
.testimonial-person strong{ display:block; font-size:14px; }
.via-linkedin{ display:block; font-size:11px; color: var(--purple-2); font-weight:600; margin-top:2px; }
.testimonial-person span{ font-size:12px; color: var(--ink-soft); }

/* Contact */
.contact{ padding: 80px 0 60px; }
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:40px; padding:50px; }
.contact-left h3{ font-size: clamp(24px,3vw,32px); margin: 10px 0 14px; }
.contact-left p{ color: var(--ink-soft); margin-bottom:26px; line-height:1.7; }
.contact-items{ display:flex; flex-direction:column; gap:14px; }
.contact-item{
  display:flex; align-items:center; gap:12px; text-decoration:none; color: var(--ink);
  font-size:14px; font-weight:500;
}
.contact-icon{
  width:34px; height:34px; border-radius:10px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, #eaf3ff, #d3e7ff); color: var(--purple-2);
}
.contact-icon .icon-svg{ width:17px; height:17px; }
.contact-cta{
  display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center;
  gap:10px; padding:40px 30px; background: linear-gradient(135deg, #eaf3ff, #d3e7ff);
  border-radius:18px; height:100%;
}
.contact-cta-icon{
  width:60px; height:60px; border-radius:50%; background:#fff; color: var(--purple-2);
  display:flex; align-items:center; justify-content:center; box-shadow: 0 8px 20px rgba(22,86,209,0.18);
}
.contact-cta-icon .icon-svg{ width:28px; height:28px; }
.contact-cta h4{ font-size:19px; }
.contact-cta p{ color: var(--ink-soft); font-size:13.5px; max-width:260px; }
.whatsapp-btn{ margin-top:8px; }

/* Footer */
.footer{ padding:26px 0 100px; }
.footer-inner{ display:flex; justify-content:space-between; align-items:center; font-size:13px; color: var(--ink-soft); flex-wrap:wrap; gap:10px; }
.footer-inner a{ color: var(--purple-2); text-decoration:none; font-weight:600; }

/* Responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-visual{ min-height:480px; margin-top:20px; }
  .about-grid{ grid-template-columns:1fr; }
  .service-grid{ grid-template-columns: repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .edu-grid{ grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 760px){
  .navbar .container{ display:flex; justify-content:center; padding:0 16px; }
  .nav-inner{ display:inline-flex; }
  .nav-links{
    position:absolute; bottom:70px; left:16px; right:16px;
    background:#fff; border-radius:18px; flex-direction:column; padding:18px;
    box-shadow: var(--glass-shadow); display:none; gap:14px;
  }
  .nav-links.open{ display:flex; }
  .nav-toggle{ display:flex; }
  .nav-cta{ display:none; }
  .service-grid{ grid-template-columns:1fr; }
  .edu-grid{ grid-template-columns:1fr; }
  .testimonial-grid{ grid-template-columns:1fr; }
  .repo-grid, .paper-grid, .kaggle-grid, .society-grid{ grid-template-columns:1fr; }
  .about-grid, .contact-grid{ padding:30px 22px; }
  .timeline-company, .timeline-item p:last-child{ margin-left:0; }
  .timeline-top{ flex-wrap:wrap; }
  .card-exp{ top:0; right:4px; }
  .card-cert{ bottom:6px; left:4px; }
  .avatar-card{ width:100%; }
  .float-card{ padding:10px 14px; }
  .float-card strong{ font-size:16px; }
}