/* Basic reset and typography */
:root{
  --bg:#0f1724;
  --card:#0b1220;
  --muted:#9aa4b2;
  --accent:#6ee7b7;
  --accent-2:#60a5fa;
  --text:#e6eef6;
  --glass:rgba(255,255,255,0.03);
  --max-width:1000px;
  --radius:12px;
}
*{box-sizing:border-box}
html,body{height:100%;}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background:linear-gradient(180deg,var(--bg),#071024);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
.container{max-width:var(--max-width);margin:0 auto;padding:24px}
.site-header{backdrop-filter: blur(6px);background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.logo{font-weight:700;color:var(--accent);text-decoration:none;font-size:1.05rem}
.nav a{color:var(--muted);text-decoration:none;margin-left:18px}
.nav a:hover{color:var(--text)}

.hero{padding:48px 0;margin-bottom:8px}
.hero .lead{color:var(--muted);max-width:720px}
.hero h1{font-size:2rem;margin:0 0 12px}
.cta-row{margin-top:18px}
.btn{display:inline-block;padding:10px 14px;border-radius:8px;text-decoration:none;color:var(--text);background:transparent;border:1px solid rgba(255,255,255,0.04);margin-right:8px}
.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#06202a;border:none}
.btn.ghost{background:transparent;border:1px dashed rgba(255,255,255,0.06)}

.section{padding:30px 0}
.section h2{margin-top:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{background:var(--glass);padding:8px 10px;border-radius:999px;color:var(--muted);font-size:0.9rem}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:12px}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:16px;border-radius:10px}
.card h3{margin:0 0 8px}
.muted{color:var(--muted);font-size:0.9rem}

.timeline{list-style:none;padding-left:0}
.timeline li{margin-bottom:18px}

.site-footer{border-top:1px solid rgba(255,255,255,0.02);padding:18px 0;margin-top:26px;color:var(--muted)}

/* Responsive tweaks */
@media (max-width:700px){
  .header-inner{padding:12px}
  .nav{display:none}
  .hero h1{font-size:1.5rem}
  .container{padding:16px}
}

/* Social / contact icons */
.social{display:flex;gap:10px;align-items:center;margin-left:12px}
.icon-link{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;color:var(--muted);background:transparent;text-decoration:none;border:1px solid rgba(255,255,255,0.02);transition:all 180ms ease}
.icon-link svg{display:block}
.icon-link:hover,.icon-link:focus{color:var(--text);transform:translateY(-3px);box-shadow:0 6px 18px rgba(0,0,0,0.45),0 1px 0 rgba(255,255,255,0.02) inset}

@media (max-width:700px){
  .social{display:none}
}

/* Animations & motion */
html{scroll-behavior:smooth}

/* Hero subtle background float */
.hero{
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;z-index:0;
  background:radial-gradient(ellipse at 10% 20%, rgba(96,165,250,0.06), transparent 10%), radial-gradient(ellipse at 80% 80%, rgba(110,231,183,0.05), transparent 10%);
  pointer-events:none;transition:transform 400ms ease;
}
.hero-content{position:relative;z-index:1}

/* Reveal utility */
.reveal{opacity:0;transform:translateY(18px) scale(0.995);transition:opacity 520ms cubic-bezier(.2,.9,.2,1),transform 520ms cubic-bezier(.2,.9,.2,1)}
.reveal.in-view{opacity:1;transform:none}

/* Hero title animation */
.hero-title{display:inline-block;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;animation:floatText 6s ease-in-out infinite}
@keyframes floatText{0%{transform:translateY(0)}50%{transform:translateY(-4px)}100%{transform:translateY(0)}}

/* Card hover lift */
.card{transition:transform 240ms ease, box-shadow 240ms ease}
.card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(2,6,23,0.6)}

/* Header shrink on scroll */
.site-header{transition:padding 220ms ease, background 220ms ease, box-shadow 220ms ease}
.site-header.scrolled{padding:8px 0;background:linear-gradient(180deg, rgba(255,255,255,0.01), transparent);box-shadow:0 6px 18px rgba(2,6,23,0.6)}

/* Social icon micro animation */
.icon-link{transition:transform 220ms ease, box-shadow 220ms ease, color 220ms}
.icon-link:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 10px 24px rgba(2,6,23,0.6)}

/* small utility */
.muted a{color:var(--muted)}

/* Section banding */
.section{padding:56px 0}
.section.alt{background:linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.00));border-top:1px solid rgba(255,255,255,0.02)}
.hero{padding:72px 0}
.site-footer{padding:28px 0}

/* give cards a soft pane feel */
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border:1px solid rgba(255,255,255,0.03)}

/* Floating decorative blobs (created by JS) */
.hero { --blob-area: 120px; }
.hero .blobs {position:absolute;inset:0;pointer-events:none;z-index:0}
.blob{
  position:absolute;border-radius:50%;filter:blur(28px) saturate(120%);opacity:0.9;mix-blend-mode:screen;transform:translate3d(0,0,0);
  will-change:transform,filter;transition:transform 600ms linear;
}
.blob.b1{width:340px;height:340px;left:-80px;top:-80px;background:radial-gradient(circle at 30% 30%, rgba(110,231,183,0.18), rgba(110,231,183,0.06) 40%, transparent 60%)}
.blob.b2{width:260px;height:260px;right:-40px;top:40%;background:radial-gradient(circle at 70% 30%, rgba(96,165,250,0.14), rgba(96,165,250,0.04) 40%, transparent 60%)}
.blob.b3{width:180px;height:180px;left:20%;bottom:-40px;background:radial-gradient(circle at 50% 50%, rgba(255,180,123,0.12), rgba(255,180,123,0.03) 50%, transparent 70%)}

/* subtle float animation for blobs */
.blob{animation:blobFloat 10s ease-in-out infinite}
@keyframes blobFloat{0%{transform:translateY(0) translateX(0)}25%{transform:translateY(-12px) translateX(6px)}50%{transform:translateY(0) translateX(-6px)}75%{transform:translateY(10px) translateX(6px)}100%{transform:translateY(0) translateX(0)}}

/* chip hover shimmer */
.chip{position:relative;overflow:hidden}
.chip::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);transform:translateX(-120%);transition:transform 520ms ease}
.chip:hover::after{transform:translateX(120%)}

/* staggered reveal helper (applies incremental delay via inline style or data-delay) */
.reveal{transition-delay:0ms}

/* parallax subtle movement for header social icons */
.social{transition:transform 300ms ease}

/* Scroll progress bar */
#scroll-progress{position:fixed;left:0;top:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0%;z-index:9999;transition:width 120ms linear}

/* Theme toggle */
.theme-toggle{background:transparent;border:none;color:var(--muted);font-size:18px;padding:6px;border-radius:8px;cursor:pointer}
.theme-toggle:hover{color:var(--text)}

/* Typing effect placeholder */
#typed{font-weight:600;color:var(--accent-2)}
#typed::after{content:"|";margin-left:6px;opacity:1;animation:blink 900ms steps(2, start) infinite}
@keyframes blink{50%{opacity:0}}

/* Skill bars */
.skill-bars{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.skill{display:flex;flex-direction:column;gap:6px}
.skill span{font-size:0.95rem;color:var(--muted)}
.bar{height:10px;background:rgba(255,255,255,0.03);border-radius:999px;overflow:hidden}
.fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width 900ms cubic-bezier(.2,.9,.2,1)}

/* Light theme overrides */
:root[data-theme='light']{
  --bg: #f7fbff;
  --card: #ffffff;
  --muted: #5b6470;
  --text: #08121a;
  --glass: rgba(2,6,23,0.03);
}

/* Hero title underline shimmer */
.hero-title{position:relative}
.hero-title::after{content:"";position:absolute;left:0;right:0;height:4px;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-2));bottom:-8px;transform:scaleX(0);transform-origin:left center;transition:transform 520ms cubic-bezier(.2,.9,.2,1)}
.hero-title.pop::after{transform:scaleX(1)}

/* icon pulse */
.icon-link::after{content:"";position:absolute;inset:0;border-radius:8px;box-shadow:0 0 0 rgba(96,165,250,0);pointer-events:none}
.icon-link:hover::after{animation:iconPulse 900ms ease-out}
@keyframes iconPulse{0%{box-shadow:0 0 0 0 rgba(96,165,250,0.16)}70%{box-shadow:0 8px 24px 8px rgba(96,165,250,0.04)}100%{box-shadow:0 0 0 0 rgba(96,165,250,0)}}

/* chip pop-in */
.chip.in-chip{transform:scale(1.02);box-shadow:0 10px 24px rgba(2,6,23,0.45)}
.chip{transition:transform 260ms cubic-bezier(.2,.9,.2,1),box-shadow 260ms}

/* card tilt on hover */
.card{transform-origin:center;will-change:transform}
.card:hover{transform:translateY(-10px) rotateX(1.2deg) rotateY(-1deg)}