:root{
  --bg: #ffffff;
  --muted: #6b7280;
  --text: #0f172a;
  --accent: #0ea5a4;
  --fade: rgba(2,6,23,0.06);
  --panel-bg: #f8fafc;
  --glass: rgba(15,23,42,0.04);
}
[data-theme="dark"]{
  --bg: #071022;
  --muted: #9aa4b2;
  --text: #e6eef8;
  --accent: #4fd1c5;
  --fade: rgba(255,255,255,0.04);
  --panel-bg: rgba(255,255,255,0.03);
  --glass: rgba(255,255,255,0.02);
}

/* Dark theme: polished main scrollbar for .content (lighter, semi-transparent thumb) */
[data-theme="dark"] .content{
  /* Firefox: thumb on track */
  scrollbar-color: rgba(255,255,255,0.12) rgba(255,255,255,0.02);
}
[data-theme="dark"] .content::-webkit-scrollbar{width:10px}
[data-theme="dark"] .content::-webkit-scrollbar-track{background:rgba(255,255,255,0.02);border-radius:999px}
[data-theme="dark"] .content::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.06));
  border-radius:999px;
  border:2px solid rgba(0,0,0,0.06);
  box-shadow: inset 0 -1px 0 rgba(255,255,255,0.02), 0 4px 10px rgba(0,0,0,0.35);
  background-clip:padding-box;
  transition:background .18s ease, transform .12s ease;
}
[data-theme="dark"] .content::-webkit-scrollbar-thumb:hover{
  background:linear-gradient(180deg, rgba(255,255,255,0.16), rgba(255,255,255,0.08));
  transform:scale(1.03);
}

/* Global/window scrollbar styling for dark theme (override browser default white scrollbar) */
[data-theme="dark"] html, [data-theme="dark"] body{
  /* Firefox: set thumb and track colors */
  scrollbar-color: rgba(255,255,255,0.12) rgba(255,255,255,0.02);
}

[data-theme="dark"] html::-webkit-scrollbar, [data-theme="dark"] body::-webkit-scrollbar{width:12px}
[data-theme="dark"] html::-webkit-scrollbar-track, [data-theme="dark"] body::-webkit-scrollbar-track{background:rgba(255,255,255,0.02);border-radius:999px}
[data-theme="dark"] html::-webkit-scrollbar-thumb, [data-theme="dark"] body::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.06));
  border-radius:999px;border:3px solid rgba(0,0,0,0.06);background-clip:padding-box;
  box-shadow: inset 0 -1px 0 rgba(255,255,255,0.02), 0 6px 18px rgba(0,0,0,0.35);
}
[data-theme="dark"] html::-webkit-scrollbar-thumb:hover, [data-theme="dark"] body::-webkit-scrollbar-thumb:hover{transform:scale(1.04);background:linear-gradient(180deg, rgba(255,255,255,0.18), rgba(255,255,255,0.08))}

/* Ensure the left fixed panel doesn't show a conflicting scrollbar; style it too for dark theme */
[data-theme="dark"] .leftpanel::-webkit-scrollbar{width:8px}
[data-theme="dark"] .leftpanel::-webkit-scrollbar-track{background:transparent}
[data-theme="dark"] .leftpanel::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.06);border-radius:999px}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  line-height:1.45;
}

/* Smooth scrolling for in-page navigation and programmatic scrolls */
html{scroll-behavior:smooth}

/* Top nav (fixed) */
.topnav{
  position:fixed;top:0;left:0;right:0;height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;background:linear-gradient(180deg, rgba(0,0,0,0.02), rgba(0,0,0,0));backdrop-filter: blur(4px);z-index:50;
}
.topnav .brand{font-weight:700;font-size:18px}
.topnav .navlinks{display:flex;gap:16px}
.topnav .navlinks a{color:var(--muted);text-decoration:none;padding:6px 8px;border-radius:6px}
.topnav .navlinks a:hover{color:var(--text);background:var(--glass)}
.topnav .actions{display:flex;gap:12px;align-items:center}
.topnav button{background:none;border:1px solid transparent;padding:8px;border-radius:8px;cursor:pointer}
.resume-btn{display:inline-block;padding:8px 12px;background:var(--accent);color:white;border-radius:8px;text-decoration:none}

/* Layout with fixed left panel */
.leftpanel{
  position:fixed;top:64px;left:0;bottom:0;width:280px;padding:24px;background:var(--panel-bg);border-right:1px solid var(--glass);overflow:auto;
}
.leftpanel .avatar{width:96px;height:96px;position:relative;margin:0 auto 12px}
.leftpanel .avatar img{width:96px;height:96px;border-radius:50%;object-fit:cover;display:block}
.leftpanel .avatar-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,var(--accent),#6ee7b7);font-weight:700;color:#012;font-size:16px}
.leftpanel h1{margin:8px 0 2px;font-size:20px}
.leftpanel .title{margin:0;color:var(--muted);font-size:14px}
.leftpanel section{margin-top:18px}
.leftpanel h3{margin:0 0 8px;font-size:13px}
.leftpanel ul{padding-left:18px;margin:0}

/* Hide visible scrollbar on the left panel but keep it scrollable */
.leftpanel{
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none; /* Firefox */
}
.leftpanel::-webkit-scrollbar{display:none} /* Chrome, Safari */

.photo-actions{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.upload-btn{display:inline-block;padding:6px 8px;background:transparent;border:1px solid var(--glass);border-radius:8px;cursor:pointer;font-size:13px}
.linkedin-import{display:flex;gap:6px}
.linkedin-import input{flex:1;padding:6px;border-radius:8px;border:1px solid var(--glass);background:transparent;color:var(--text)}
.linkedin-import button{padding:6px 8px;border-radius:8px;border:1px solid var(--glass);background:var(--accent);color:white;cursor:pointer}

/* Main content area */
.content{margin-left:320px;padding:92px 48px 48px;min-height:100vh}

/* Custom scrollbar for the main content area (thin, theme-aware, smooth) */
.content{
  scrollbar-width: thin; /* Firefox */
  /* make the main right scrollbar sleek and black */
  scrollbar-color: #0b0b0b transparent; /* thumb color (black) and track (transparent) for Firefox */
}
.content::-webkit-scrollbar{width:10px;height:10px}
.content::-webkit-scrollbar-track{background:transparent;border-radius:999px}
.content::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#000000,#0b0b0b);border-radius:999px;border:2px solid rgba(255,255,255,0.02);box-shadow: inset 0 1px 0 rgba(255,255,255,0.04), 0 3px 10px rgba(0,0,0,0.25);background-clip:padding-box;transition:background .18s ease, transform .12s ease}
.content::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,#1a1a1a,#000000);transform:scale(1.03)}

/* Make sure the scrollbar doesn't overlap content on small screens */
@media (max-width:900px){
  .content{padding-right:20px}
}
.panel{background:transparent;padding:22px 0;border-bottom:1px dashed var(--glass)}
.panel h2{margin-top:0}
.job h3{margin-bottom:6px}
.meta{color:var(--muted);font-size:13px;margin-bottom:8px}
.project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.project{padding:12px;background:var(--panel-bg);border-radius:8px}

/* Expertise / project cards: reuse .card visuals but slightly more compact */
.project.card{background:var(--panel-bg);border-radius:10px;box-shadow:0 8px 22px rgba(2,6,23,0.06);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease;cursor:pointer}
.project.card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(2,6,23,0.09)}
.project.card .card-media{height:86px;background-size:cover;background-position:center}
.project.card h4{margin:10px 12px 4px}
.project.card h4 a{color:inherit;text-decoration:none}
.project.card .teaser{margin:0 12px 12px;color:var(--muted);font-size:0.95rem}
.project.card .card-tags{padding:8px 12px 0}
/* Expertise slider */
.expertise-slider{position:relative;display:flex;align-items:center;margin-top:12px}
.slider-viewport{overflow-x:auto;flex:1;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;position:relative}
.slider-track{display:flex;gap:14px;padding:8px 12px}
.slider-viewport{scroll-snap-type:x mandatory}

/* Hide native scrollbar but keep scrolling (cross-browser) */
.slider-viewport{
  -ms-overflow-style: none; /* IE and Edge */
  scrollbar-width: none; /* Firefox */
}
.slider-viewport::-webkit-scrollbar{display:none} /* Chrome, Safari */

/* Soft fade edges that hint at horizontal content */
.slider-viewport::before, .slider-viewport::after{
  content:'';position:absolute;top:0;bottom:0;width:56px;pointer-events:none;z-index:3;transition:opacity .22s ease,transform .22s ease;
}
.slider-viewport::before{left:0;background:linear-gradient(90deg, var(--fade), rgba(0,0,0,0));opacity:0;transform:translateX(-6px)}
.slider-viewport::after{right:0;background:linear-gradient(270deg, var(--fade), rgba(0,0,0,0));opacity:0;transform:translateX(6px)}
.expertise-stage.active .slider-viewport::before, .expertise-stage.active .slider-viewport::after{opacity:1;transform:none}

/* Make keyboard focus clear for accessibility */
.slider-viewport:focus{outline:none}
.slider-viewport:focus-visible{box-shadow:0 0 0 3px rgba(14,165,164,0.16);border-radius:12px}
.slider-track .project{flex:0 0 320px;scroll-snap-align:center}
.slider-btn{background:var(--panel-bg);border:1px solid var(--glass);width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;margin:0 8px;position:relative;line-height:1}
.slider-btn:hover{transform:translateY(-3px)}

/* Make slider arrows clearly visible in dark theme */
[data-theme="dark"] .slider-btn{background:linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.06));border:1px solid rgba(255,255,255,0.12);box-shadow:0 8px 24px rgba(0,0,0,0.6);color:#fff;font-size:22px;z-index:30}
[data-theme="dark"] .slider-btn::before{content:'';position:absolute;inset:0;border-radius:10px;opacity:0;pointer-events:none}
[data-theme="dark"] .slider-btn:hover{box-shadow:0 12px 34px rgba(0,0,0,0.65);transform:translateY(-3px)}


/* Ensure the expertise pin is positioned so arrows can layer above content.
   Keep the pin sticky so it stays below the navbar and center-aligned via flexbox.
   We intentionally do NOT absolutely position the buttons here so they follow the
   original layout and vertical alignment (matches light theme). */
.expertise-pin{position:sticky;top:92px;width:100%;display:flex;align-items:center;justify-content:center}

/* Reduce hit area on very small screens to avoid overlap with touch interactions */
@media (max-width:600px){
  .expertise-pin .slider-btn{display:none}
}

/* Activity cards: simple static tiles (restore original look) */
.activities-grid .card{opacity:1;transform:none;transition:transform .18s ease,box-shadow .18s ease}
.activities-grid .card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(2,6,23,0.08)}

/* Make slider touch-friendly */
.slider-track.is-dragging{cursor:grabbing}

/* Expertise stage: sticky, appear while in view, behave like 'news plates' */
.expertise-stage{position:relative;margin:22px 0}
.expertise-stage .expertise-pin{position:sticky;top:92px;width:100%;display:flex;align-items:center;justify-content:center;transition:opacity .45s cubic-bezier(.2,.9,.2,1),transform .45s cubic-bezier(.2,.9,.2,1);opacity:0;transform:translateY(22px);pointer-events:none}
.expertise-stage.active .expertise-pin{opacity:1;transform:none;pointer-events:auto}
.expertise-stage .slider-viewport{width:78%;max-width:980px}
.slider-track{gap:24px}
.slider-track .project{flex:0 0 100%;max-width:900px;scroll-snap-align:center}

/* Single-plate style: larger, prominent */
.slider-track .project{border-radius:14px;padding:0;overflow:hidden}
.slider-track .project .card-media{height:200px}
.slider-track .project h4{font-size:1.25rem;padding:12px}
.slider-track .project .teaser{padding:0 12px 18px}

/* Hide the expertise-pin when not active to 'vanish' effect */
.expertise-stage:not(.active) .expertise-pin{visibility:hidden}


.footer-note{
  padding:28px 0 10px;
  color:var(--muted);
  /* slightly more visible divider (light theme); dark theme overridden below */
  border-top:1px solid rgba(15,23,42,0.08);
  margin-top:28px;
  padding-top:20px;
  font-size:0.9rem;
}

/* Dark theme: ensure footer divider is visible against dark background */
[data-theme="dark"] .footer-note{
  border-top:1px solid rgba(255,255,255,0.06);
}

/* Activities cards */
.activities-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.expertise-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:14px}
.expertise-grid .project.card{display:flex;flex-direction:row;align-items:stretch;padding:0;border-radius:12px;overflow:hidden;box-shadow:0 6px 18px rgba(2,6,23,0.06)}
.expertise-grid .project.card .card-media{width:160px;flex:0 0 160px;height:100%;background-size:cover;background-position:center}
.expertise-grid .project.card .card-body{padding:16px;display:flex;flex-direction:column;justify-content:center}
.expertise-grid .project.card .card-body h4{margin:0 0 8px;font-size:1.05rem}
.expertise-grid .project.card .card-body .teaser{margin:0;color:var(--muted)}
@media (max-width:900px){
  .expertise-grid .project.card{flex-direction:column}
  .expertise-grid .project.card .card-media{width:100%;height:140px}
}
.card{background:var(--panel-bg);border-radius:12px;overflow:hidden;cursor:pointer;box-shadow:0 6px 18px rgba(2,6,23,0.06);transition:transform .18s ease,box-shadow .18s ease;position:relative;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(2,6,23,0.08)}
.card-media{height:140px;width:100%;display:block}
.card-media img.card-img{display:block;width:100%;height:100%;object-fit:cover;border-radius:0}
.card.has-image .card-media{background:none}
.card h4{margin:10px;padding:0 12px 8px}
.card .teaser{padding:0 12px 16px;color:var(--muted);font-size:14px;margin-top:auto}

/* activity-excerpt was removed to keep tiles compact */

/* teaser overlay for larger screens */
.card .teaser-overlay{position:absolute;left:0;right:0;bottom:0;padding:12px;background:linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,0.25));color:white;opacity:0;transition:opacity .18s ease}
.card:hover .teaser-overlay{opacity:1}

/* Make the entire card clickable by an absolute, invisible anchor (improves desktop reliability) */
.card > a.card-link{position:absolute;inset:0;z-index:5;text-decoration:none;background:transparent}

/* Modal */
.modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:100}
.modal[aria-hidden="false"]{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(2,6,23,0.5)}
.modal-content{position:relative;background:var(--bg);color:var(--text);padding:24px;border-radius:12px;max-width:720px;width:94%;z-index:10;box-shadow:0 20px 50px rgba(2,6,23,0.2)}
.modal-close{position:absolute;right:12px;top:8px;border:none;background:transparent;font-size:22px;cursor:pointer}

.article-hero{max-width:860px;margin:48px auto 12px;padding:0 20px}
/* ensure article hero sits below the fixed navbar so the back link is visible */
.article-hero-offset{margin-top:92px}

/* Article page shared styles (used by all activity/article pages) */
.article-hero .back{display:inline-block;margin-bottom:18px;color:var(--muted);text-decoration:none}
.article-header h1{margin:8px 0 6px}
.article-meta{color:var(--muted);margin-bottom:18px}
.article-body{max-width:860px;margin:0 auto;padding:0 20px 80px}
.article-body img{max-width:100%;border-radius:8px;margin:12px 0}

/* subtle 'Back to main' button used on article/blog pages */
.back-main{
  display:inline-block;
  margin-left:12px;
  margin-bottom:18px;
  padding:6px 10px;
  background:var(--panel-bg);
  color:var(--accent);
  border-radius:8px;
  text-decoration:none;
  border:1px solid var(--glass);
  font-weight:600;
}
.back-main:hover{background:linear-gradient(180deg, rgba(0,0,0,0.01), rgba(0,0,0,0.02));transform:translateY(-1px)}

/* Expertise card tags */
.chip{display:inline-block;padding:6px 10px;border-radius:999px;background:rgba(0,0,0,0.06);color:var(--muted);font-size:12px;margin-right:8px}
.card-tags{padding:8px 12px 0}

/* Emphasize article headings */
.article-body h3{margin-top:18px}
.article-body p.lead{font-size:1.05rem;color:var(--muted);line-height:1.6}



/* Responsive */
@media (max-width:900px){
  .leftpanel{position:relative;width:100%;height:auto;border-right:0;border-bottom:1px solid var(--glass);top:64px}
  .content{margin-left:0;padding:140px 20px 40px}
  .topnav .navlinks{display:none}
}

/* Small polish */
a{color:var(--accent)}