:root{
  --bg:#0f1724;
  --card:#0b1220;
  --muted:#94a3b8;
  --accent:#60a5fa;
  --glass: rgba(255,255,255,0.03);
  --radius:12px;
  --container:1100px;
}
html[data-theme="light"]{
  --bg:#f8f9fa;
  --card:#ffffff;
  --muted:#64748b;
  --accent:#3b82f6;
  --glass: rgba(0,0,0,0.02);
}
*{box-sizing:border-box}
/* Page background: layered gradient + animated radial orbs for 'live solar system' feel */
html,body{height:100%;margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text, #e6eef8);transition:background-color .3s ease,color .3s ease;overflow-x:hidden}

/* Dark theme background (spacey gradient) */
html:not([data-theme]) , html[data-theme="dark"]{
  --text: #e6eef8;
}
html[data-theme="dark"] body, html:not([data-theme]) body{
  background: linear-gradient(135deg,#060612 0%, #0b1220 30%, #0f1724 60%, #071029 100%);
  background-attachment: fixed;
}

/* Light theme background */
html[data-theme="light"] body{
  background: linear-gradient(135deg,#f8f9fa 0%, #f1f5f9 40%, #eef2f7 100%);
  --text: #1e293b;
  background-attachment: fixed;
}

/* Glowing orbital overlays (animated subtly) */
body::before{
  content:'';
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(circle at 18% 30%, rgba(139,92,246,0.14) 0%, rgba(139,92,246,0.06) 12%, transparent 30%),
    radial-gradient(circle at 78% 12%, rgba(59,130,246,0.12) 0%, rgba(59,130,246,0.04) 14%, transparent 36%),
    radial-gradient(circle at 70% 78%, rgba(14,165,233,0.06) 0%, rgba(14,165,233,0.02) 18%, transparent 44%);
  mix-blend-mode: screen;
  filter: blur(6px);
  transform-origin: center;
  animation: orbFloat 20s linear infinite;
}

/* Slightly different overlays for light theme */
html[data-theme="light"] body::before{
  background:
    radial-gradient(circle at 18% 30%, rgba(59,130,246,0.06) 0%, rgba(59,130,246,0.03) 12%, transparent 30%),
    radial-gradient(circle at 78% 12%, rgba(139,92,246,0.05) 0%, rgba(139,92,246,0.02) 14%, transparent 36%),
    radial-gradient(circle at 70% 78%, rgba(99,102,241,0.04) 0%, rgba(99,102,241,0.01) 18%, transparent 44%);
  mix-blend-mode: normal;
  filter: blur(4px) saturate(1.05);
}

@keyframes orbFloat{
  0%{transform:translateY(0) scale(1)}
  50%{transform:translateY(-18px) scale(1.02)}
  100%{transform:translateY(0) scale(1)}
}

body{padding-top:80px}
.container{max-width:var(--container);margin:0 auto;padding:1.25rem}
.site-header{backdrop-filter:saturate(180%) blur(10px);position:fixed;top:1rem;left:5.5rem;right:5.5rem;background:rgba(15,23,36,0.95);padding:.35rem 1.5rem;z-index:50;border:1px solid rgba(96,165,250,0.08);border-radius:50px;box-shadow:0 4px 16px rgba(0,0,0,0.4);transition:all .3s ease;will-change:transform}
html[data-theme="light"] .site-header{background:rgba(255,255,255,0.9);border-color:rgba(59,130,246,0.1);box-shadow:0 4px 16px rgba(0,0,0,0.1)}
.site-header.hide-header{padding:.35rem 0;transform:translateY(-25%);opacity:0.8}
.site-header.container.logo{font-size:10rem}
.site-header{width:auto}
.site-header.hide-header .nav{gap:2rem;font-size:.85rem}
.site-header.hide-header .theme-toggle{font-size:1rem}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.logo{color:#ffffff !important;font-weight:900;text-decoration:none !important;font-size:1.3rem;letter-spacing:.5px;text-transform:uppercase}
html[data-theme="light"] .logo{color:#ffffff !important}
.nav{display:flex;gap:1.5rem;align-items:center}
.nav a{color:#a8b5d1;text-decoration:none;font-size:.8rem;transition:all .3s ease;position:relative;padding:.5rem 0}
html[data-theme="light"] .nav a{color:#64748b}
.nav a:hover{color:var(--accent);transform:translateY(-2px)}
.theme-toggle{background:none;border:0;color:#a8b5d1;font-size:.95rem;cursor:pointer;transition:color .2s;padding:0.35rem;display:flex;align-items:center}
.theme-toggle:hover{color:var(--accent)}
.menu-toggle{display:none;background:none;border:0;color:var(--muted);font-size:1.25rem}
.hero{padding:5rem 0 3rem}
.hero-inner{display:block}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:2rem;align-items:center}
.hero-copy{padding-right:1rem}
.hero h1{font-size:3rem;margin:.2rem 0;line-height:1.2}
.role-carousel{height:2.5rem;margin:0.75rem 0;position:relative;overflow:hidden}
.role-item{display:block;font-size:1.5rem;color:var(--accent);font-weight:500;position:absolute;left:0;width:100%;opacity:0;transform:translateY(40px);pointer-events:none}
.role-item.active{opacity:1;transform:translateY(0);animation:slideInRole 0.8s cubic-bezier(0.34,1.56,0.64,1) forwards}
@keyframes slideInRole{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideOutRole{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-40px)}}
.role-item.exit{animation:slideOutRole 0.8s cubic-bezier(0.16,1,0.3,1) forwards}
.tagline{color:var(--muted);max-width:48ch;margin:0.75rem 0;font-size:.95rem}
.btn{display:inline-block;padding:.6rem 1rem;border-radius:10px;background:var(--accent);color:#042233;text-decoration:none;font-weight:600;margin-right:.5rem;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(96,165,250,0.3)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--muted)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.hero-cta{margin-top:1rem}
.social-icons {
  display: flex;
  gap: 14px;
  margin-left: 20px;
}


/* Location in hero */
.location{display:flex;align-items:center;gap:.5rem;color:var(--muted);margin-top:.5rem;font-weight:600}
.location i{color:var(--accent);font-size:1.05rem}
.location span{font-size:.95rem}
.social-icons a {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(180deg, #0b1224, #070b18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e6e9f0;
  text-decoration: none;
  font-size: 18px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
  transition: all 0.3s ease;
}

.social-icons a:hover {
  background: linear-gradient(180deg, #121c3a, #0b1224);
  color: #ffffff;
  transform: translateY(-2px);
}
.section{padding:3rem 0}
.section h2{font-size:2.2rem;text-align:center;margin:.5rem 0}
.section-subtitle{text-align:center;color:var(--muted);margin-bottom:7rem}
.site-header{height:3rem;}
.site-header .container{height:100%}
/* Achievements Section */
.achievements{margin-top: 5rem;}
.achievements-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:5rem}
.achievement-card{background:var(--card);padding:1.5rem;border-radius:var(--radius);border:1px solid rgba(96,165,250,0.1);transition:all .28s ease;cursor:pointer}
.achievement-card{overflow:hidden;position:relative}
.achievement-img {
  width: 220px;
  height: 150px;
  object-fit: contain;
  border-radius: 8px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.02);
  padding: 8px;
  transition: box-shadow .18s ease, filter .18s ease;
}

@media (max-width: 700px) {
  .achievement-img { width: 112px; height: 92px; padding:6px; }
}

@media (min-width: 700px) {
  .achievement-card:hover{z-index:60;transform:translateY(-6px);box-shadow:0 18px 40px rgba(2,6,23,0.18)}
  .achievement-card .achievement-img{backface-visibility:hidden}
}
.achievement-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 24px rgba(96,165,250,0.15)}
.achievement-icon{font-size:1.75rem;display:block;margin-bottom:.5rem}
.achievement-card h3{margin:0;font-size:.95rem;color:#e6eef8;line-height:1.4}
.achievement-tags{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap; margin-bottom: 5rem;}
.tag{background:rgba(96,165,250,0.1);color:var(--accent);padding:.4rem .8rem;border-radius:20px;font-size:.85rem;border:1px solid rgba(96,165,250,0.2)}

/* Skills Section */
.skills{
  margin-top: 4rem;
}
.skills-tabs{display:flex;gap:.5rem;justify-content:center;margin-bottom:2rem;flex-wrap:wrap}
.skill-tab{background:transparent;border:1px solid rgba(96,165,250,0.2);color:var(--muted);padding:.6rem 1.2rem;border-radius:20px;cursor:pointer;transition:all .3s;font-size:.9rem;font-weight:500}
.skill-tab:hover{border-color:var(--accent);color:var(--accent)}
.skill-tab.active{background:var(--accent);color:#042233;border-color:var(--accent)}
.skills-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:.75rem}
.skill-category{display:none}
.skill-category.active{display:contents}
.skill-badge{background:var(--card);border:1px solid rgba(96,165,250,0.15);color:#e6eef8;padding:.5rem .75rem;border-radius:8px;text-align:center;font-size:1rem;font-weight:500;transition:all .3s;cursor:default;display:flex;align-items:center;justify-content:center;gap:.4rem;flex-direction:column;min-height:55px}
.skill-badge:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px)}
.skill-badge::before{font-size:1.4rem;line-height:1}
.skill-badge::first-letter{font-size:1.2rem}

/* Other Skills section */
.other-skills-desc{text-align:center;color:var(--muted);max-width:600px;margin:0 auto;font-size:.95rem;margin-top:-5rem}
.other-skills .skill-list{display:flex;gap:1rem;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:1rem}
.other-skills .skill-badge{min-width:160px;padding:.8rem 1rem;font-size:1rem}
/* Other Skills section - unique styling */
.other-skills{
  background: linear-gradient(180deg, rgba(10,14,24,0.55), rgba(6,10,18,0.45));
  border-radius:16px;
  padding:2rem 1.25rem;
  margin-top:2.5rem;
  border:1px solid rgba(96,165,250,0.06);
  box-shadow: 0 10px 30px rgba(2,6,23,0.55);
}
.other-skills .section-subtitle{color:var(--muted);margin-bottom:.6rem}
.other-skills-desc{color:var(--muted);max-width:900px;margin:0 auto 1rem;text-align:center;line-height:1.6;font-size:1rem}
.other-skills .skill-list{display:flex;gap:1rem;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:1rem}
.other-skills .skill-badge{min-width:180px;padding:.9rem 1.15rem;font-size:1rem;border-radius:12px;display:flex;align-items:center;justify-content:center;gap:.6rem;background:linear-gradient(135deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border:1px solid rgba(255,255,255,0.03);transition:transform .28s ease,box-shadow .28s ease,color .2s}
.other-skills .skill-badge:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 18px 40px rgba(96,165,250,0.14);border-color:var(--accent);color:var(--accent)}
.other-skills .skill-badge::before{font-size:1.4rem}
@media (max-width:800px){
  .other-skills{padding:1.25rem}
  .other-skills .skill-badge{min-width:140px;padding:.7rem .85rem}
}

/* Projects Section */
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding:2rem 0; margin-top: -5rem;}
.project-card{background:linear-gradient(135deg, rgba(11, 18, 32, 0.8) 0%, rgba(15, 23, 36, 0.6) 100%);border:1px solid rgba(96,165,250,0.15);border-radius:16px;overflow:hidden;transition:all .35s cubic-bezier(0.4, 0, 0.2, 1);display:flex;flex-direction:column;padding:1.75rem;position:relative;backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(0, 0, 0, 0.3)}
.project-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg, rgba(139,92,246,0.1) 0%, rgba(59,130,246,0.05) 50%, transparent 100%);opacity:0;transition:opacity .3s;pointer-events:none;border-radius:16px}
.project-card:hover::before{opacity:1}
.project-card:hover{border-color:var(--accent);transform:translateY(-8px);box-shadow:0 16px 40px rgba(96, 165, 250, 0.2)}
.project-image{width:calc(100% + 640px);height:220px;overflow:hidden;background:linear-gradient(135deg,#082032 0%, #12324b 100%);margin:0 -320px 1.25rem;border-radius:6px;display:block}
.project-image img{width:100%;height:100%;object-fit:cover;display:block}
.project-card h3{font-size:1.3rem;margin:0 0 0.75rem 0;color:#e6eef8;font-weight:700;line-height:1.3}
.project-card p{color:var(--muted);font-size:.95rem;margin:0}
.view-details{display:inline-block;padding:0.65rem 1rem;color:var(--accent);text-decoration:none;font-weight:600;font-size:.9rem;text-align:left;transition:all .2s;border:1px solid transparent}
.view-details:hover{color:#fff;padding-right:1.25rem}
.project-card{position:relative;z-index:1}
.project-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.25rem;gap:1rem}
.project-header h3{margin:0;font-size:1.3rem;font-weight:700;flex:1}
.project-links{display:flex;gap:0.5rem;flex-shrink:0}
.project-links a{width:32px;height:32px;display:flex;align-items:center;justify-content:center;color:var(--muted);text-decoration:none;font-size:1.1rem;transition:all .2s;border:1px solid rgba(96, 165, 250, 0.2);border-radius:8px;background:rgba(96, 165, 250, 0.05)}
.project-links a:hover{color:var(--accent);border-color:var(--accent);background:rgba(96, 165, 250, 0.1);transform:translateY(-2px)}
.project-desc{color:var(--muted);font-size:.95rem;margin:0.75rem 0 1.25rem 0;line-height:1.5}
.project-tags{display:flex;gap:0.5rem;flex-wrap:wrap;margin-top:0.75rem;margin-bottom:1.25rem}
.project-tags span{background:rgba(96,165,250,0.12);color:var(--accent);padding:0.35rem 0.8rem;border-radius:6px;font-size:.8rem;font-weight:500;border:1px solid rgba(96,165,250,0.2);transition:all .2s}
.project-tags span:hover{background:rgba(96,165,250,0.2);border-color:var(--accent)}
.project-highlights{list-style:none;padding:0;margin:0.75rem 0 1.25rem 0;font-size:.88rem;color:var(--muted)}
.project-highlights li{padding:0.5rem 0;padding-left:1.25rem;position:relative;line-height:1.6}
.project-highlights li:before{content:'→';position:absolute;left:0;color:var(--accent);font-weight:600}
.view-details{color:var(--accent);text-decoration:none;font-weight:600;font-size:.95rem;margin-top:auto;transition:all .2s;display:inline-flex;align-items:center;gap:0.5rem}
.view-details:hover{color:#fff;transform:translateX(4px)}
.about-grid{display:grid;grid-template-columns:1fr 220px;gap:1.25rem;align-items:center}
.about-photo{height:160px;background:linear-gradient(135deg,#082032 0%, #12324b 100%);border-radius:var(--radius);overflow:hidden}
.about-photo img{width:100%;height:100%;object-fit:cover;display:block}

/* Hero photo styling (large rectangular image with entrance animation + subtle float) */
.hero-photo{width:400px;height:510px; overflow:hidden;;display:flex;align-items:center;justify-content:center;border:6px solid rgba(255,255,255,0.04);box-shadow:0 12px 40px rgba(2,6,23,0.6);transform:translateY(20px) scale(.98);opacity:0;transition:transform .9s cubic-bezier(.2,.9,.2,1),opacity .7s ease}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 20%;display:block}
.hero-photo.in-view{transform:translateY(0) scale(1);opacity:1}

@keyframes floaty{0%{transform:translateY(0)}50%{transform:translateY(-6px)}100%{transform:translateY(0)}}
.hero-photo.in-view .float{animation:floaty 6s ease-in-out infinite}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.card{background:var(--card);padding:1rem;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,.6)}
.card h3{margin-top:0}
.card-link{color:var(--accent)}
.contact-form{display:grid;gap:.6rem;max-width:600px}
.contact-form label{display:flex;flex-direction:column;color:var(--muted)}
.contact-form input,.contact-form textarea{padding:.6rem;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:var(--glass);color:inherit}
.form-actions{text-align:right}
.site-footer{padding:2rem 0;color:var(--muted)}

@media (max-width:1200px){
  .hero-grid{grid-template-columns:1fr 320px}
  .hero-photo{width:320px;height:320px}
  .featured-grid{grid-template-columns:repeat(2,1fr)}
  .project-image{height:220px;width:calc(100% + 360px);margin:0 -180px 1.25rem}
}
@media (max-width:900px){
  .achievements-grid{grid-template-columns:repeat(2,1fr)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
}
@media (max-width:800px){
  .hero-grid{grid-template-columns:1fr}
  .hero-photo{width:220px;height:180px;margin:1.25rem auto}
  .hero-copy{text-align:center;padding-right:0}
  .hero h1{font-size:2rem}
  .featured-grid{grid-template-columns:1fr}
  .achievements-grid{grid-template-columns:1fr}
  .project-image{height:220px;width:100%;margin:0}
}
@media (max-width:640px){
  .grid{grid-template-columns:1fr}
  .nav{display:none}
  .menu-toggle{display:inline-block}
  .hero h1{font-size:1.6rem}
  .role-carousel{height:2rem;margin:0.5rem 0}
  .role-item{font-size:1rem}
  .section h2{font-size:1.6rem}
  .skills-tabs{flex-direction:column}
  .skill-tab{width:100%}
  .project-image{height:180px}

.project-image img{transform:scale(1.03);transition:transform .4s ease}
}

/* Lightbox modal for full-size achievement images */
.lightbox{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(2,6,23,0.75);z-index:9999;padding:24px}
.lightbox.open{display:flex}
.lightbox-content{max-width:calc(100% - 48px);max-height:calc(100% - 48px);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.lightbox-img{max-width:100%;max-height:100%;object-fit:contain;display:block;border-radius:8px}
.lightbox-close{position:absolute;top:18px;right:22px;background:transparent;border:0;color:#fff;font-size:28px;cursor:pointer;opacity:0.95}
.lightbox-close:hover{opacity:1;transform:translateY(-2px)}