/* ---------- CSS: Pretty, responsive, dark-mode first ---------- */
:root {
  --bg: #0b0d10;
  --surface: #0f1216;
  --elev: #12151a;
  --text: #eef3f9;
  --muted: #9fb0c3;
  --border: #20262e;
  --accent: #6ea8ff;
  --accent-2: #8a7aff;
  --ring: rgba(110, 168, 255, 0.25);
}
:root.light {
  --bg:#ffffff; --surface:#f7f9fc; --elev:#ffffff;
  --text:#0f1824; --muted:#5d6b7a; --border:#e7eef5;
  --accent:#355dfb; --accent-2:#6d4cff; --ring: rgba(53,93,251,0.15);
}

* { box-sizing: border-box; }
html, body { margin:0; padding:0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 10% -10%, rgba(110,168,255,0.06), transparent),
              radial-gradient(900px 700px at 90% 0%, rgba(138,122,255,0.05), transparent),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* progress bar */
.scrollbar{
  position: fixed; inset: 0 0 auto 0; height: 2px; transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 1000; transform: scaleX(0);
}

/* active nav */
.nav a.active{ opacity:1; border-bottom:2px solid var(--accent); padding-bottom:2px; }

/* skeletons for repo feed */
.skeleton .skel{ display:block; background: linear-gradient(90deg, rgba(255,255,255,0.06), rgba(255,255,255,0.12), rgba(255,255,255,0.06));
  background-size: 200% 100%; animation: shimmer 1.2s infinite linear; border-radius:6px; }
.skel-title{ width:60%; height:18px; margin:0 0 12px; }
.skel-line{ width:100%; height:12px; margin:8px 0; }
.skel-line.short{ width:70%; }
.skel-pill{ width:72px; height:22px; border-radius:999px; display:inline-block; }
@keyframes shimmer{ 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* language colored dot in tags */
.lang-dot{ display:inline-block; width:10px; height:10px; border-radius:50%; margin-right:6px; vertical-align:middle; }

/* Utility */
.container { width: min(1080px, 92%); margin: 0 auto; }
.small { font-size: 0.9rem; color: var(--muted); }
.muted { color: var(--muted); }
.section-title { font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem); margin: 2.75rem 0 1.25rem; font-weight: 800; letter-spacing: 0.02em; }

/* Buttons */
.btn {
  position: relative;
  display:inline-block; padding: 0.6rem 0.95rem; border:1px solid var(--border);
  border-radius: 12px; text-decoration: none; color: var(--text);
  background: linear-gradient(180deg,var(--elev),transparent);
  box-shadow: 0 1px 0 var(--border) inset;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
.btn.small { padding: 0.45rem 0.75rem; font-size: 0.9rem; border-radius: 10px; }
.btn:hover { transform: translateY(-1px); border-color: var(--accent); box-shadow: 0 10px 30px -15px var(--ring); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 3px solid color-mix(in oklab, var(--accent), white 25%); outline-offset: 2px; }

.btn-ghost { background: transparent; }
.btn-ghost:hover { border-color: var(--accent); }

/* New: primary style to make CTAs pop */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 12px 30px -12px var(--ring), 0 1px 0 rgba(255,255,255,0.08) inset;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -14px var(--ring);
}

.tags { display:flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.5rem 0; }
.tags span { font-size: 0.8rem; padding: 0.25rem 0.55rem; border:1px solid var(--border); border-radius: 999px; background: linear-gradient(180deg,var(--surface),transparent); }

/* Header */
.skip { position:absolute; left:-9999px; }
.skip:focus { left:1rem; top:1rem; background: var(--elev); padding:0.5rem 0.75rem; border-radius:10px; border:1px solid var(--border); z-index:1000; }
.site-header {
  position: sticky; top:0; z-index: 50; backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--bg), transparent 40%);
  border-bottom: 1px solid var(--border);
}
.site-header .container { display:flex; align-items:center; justify-content:space-between; padding: 0.8rem 0; }
.brand { display:flex; gap: 0.9rem; align-items:center; }
.brand-meta h1 { margin:0; font-size: 1.4rem; }
.brand-meta p { margin:0; color:var(--muted); font-size: 0.95rem; }
.avatar-wrap { position:relative; }
.avatar { width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--border); object-fit: cover; }
.gradient { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip:text; background-clip:text; color: transparent; }
.nav { display:flex; gap: 1rem; align-items:center; }
.nav a { color: var(--text); text-decoration: none; opacity: 0.9; }
.nav a:hover { opacity: 1; }
.icon-btn { border:1px solid var(--border); background: var(--elev); color: var(--text); border-radius: 10px; padding: 0.4rem 0.6rem; cursor: pointer; }

/* Hero */
.hero { display:grid; grid-template-columns: 1.4fr 1fr; gap: min(6vw, 64px); align-items: center; padding: 3rem 0 1.5rem; }
.hero h2 { margin:0 0 0.6rem; font-size: clamp(1.6rem, 1.1rem + 2.2vw, 2.6rem); font-weight: 800; letter-spacing: 0.02em; }
.underline { box-shadow: 0 -0.35em 0 0 rgba(110,168,255,0.12) inset; }
.cta { display:flex; gap:0.7rem; margin-top: 0.9rem; flex-wrap: wrap; }

.hero-art { position: relative; min-height: 280px; isolation: isolate; }
.grid-bg {
  position:absolute; inset: 10% 0 0 0; background:
    linear-gradient(transparent 24px, var(--border) 25px),
    linear-gradient(90deg, transparent 24px, var(--border) 25px);
  background-size: 25px 25px; opacity: 0.25; border-radius: 16px;
}
.ring { position:absolute; border-radius: 999px; border: 1px solid var(--border); filter: drop-shadow(0 10px 30px var(--ring)); }
.ring1 { width: 240px; height: 240px; right: 5%; top: 12%; background: radial-gradient(closest-side, rgba(110,168,255,0.25), transparent); animation: float 7s ease-in-out infinite; }
.ring2 { width: 160px; height: 160px; right: 35%; top: 6%; background: radial-gradient(closest-side, rgba(138,122,255,0.25), transparent); animation: float 9s ease-in-out infinite reverse; }
.ring3 { width: 120px; height: 120px; right: 20%; bottom: 6%; background: radial-gradient(closest-side, rgba(110,168,255,0.18), transparent); animation: float 11s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-6px); } }

/* Metrics */
.metrics { display:grid; grid-template-columns: repeat(4,1fr); gap: 0.9rem; margin: 1rem 0 0.5rem; }
.metric { background: linear-gradient(180deg,var(--surface),transparent); border:1px solid var(--border); border-radius: 14px; padding: 1rem; box-shadow: 0 20px 50px -40px var(--ring); }
.metric-num { font-size: clamp(1.2rem, 1rem + 1.2vw, 1.8rem); font-weight: 800; letter-spacing: 0.02em; }
.metric-label { color: var(--muted); }

/* Cards / grid */
.grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.cards .card { background: var(--surface); border:1px solid var(--border); border-radius: 16px; overflow: hidden; box-shadow: 0 30px 60px -40px var(--ring); transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 40px 90px -50px var(--ring); }

/* UPDATED: card cover now supports <img> */
.card-cover {
  position: relative;
  height: 180px; /* change to 150px if you prefer original height */
  overflow: hidden;
  border-bottom:1px solid var(--border);
  background: linear-gradient(135deg, rgba(110,168,255,0.2), rgba(138,122,255,0.25));
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.02);
  filter: saturate(1.05) contrast(1.05);
  transition: transform 300ms ease;
}
.card-cover::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 80% at 80% 0%, rgba(0,0,0,0.15), transparent 60%),
    linear-gradient(to top, rgba(0,0,0,0.28), rgba(0,0,0,0.05));
  pointer-events: none;
}
.card:hover .card-cover img { transform: scale(1.06); }

/* optional color variants still work if you don't use an image */
.cover-lob { background: linear-gradient(135deg, rgba(86,230,186,0.2), rgba(138,122,255,0.25)); }
.cover-lora { background: linear-gradient(135deg, rgba(255,192,118,0.25), rgba(110,168,255,0.2)); }
.cover-dao { background: linear-gradient(135deg, rgba(255,118,176,0.25), rgba(110,168,255,0.2)); }
.cover-dash { background: linear-gradient(135deg, rgba(118,190,255,0.25), rgba(86,230,186,0.2)); }
.cover-crypto { background: linear-gradient(135deg, rgba(255,118,176,0.25), rgba(118,190,255,0.25)); }

.card-body { padding: 1rem; }
.card h4 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.card p { margin: 0 0 0.6rem; color: var(--muted); }
.card.small { padding: 1rem; }
.card-actions { display:flex; gap: 0.5rem; flex-wrap: wrap; }

/* Timeline */
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px dashed var(--border); margin-left: 0.5rem; }
.timeline li { padding-left: 1rem; position: relative; margin: 0 0 1rem 0; }
.timeline li::before {
  content: ""; position: absolute; left: -7px; top: 0.45rem; width: 10px; height: 10px;
  background: linear-gradient(180deg,var(--accent),var(--accent-2)); border-radius: 50%;
  box-shadow: 0 0 0 4px color-mix(in oklab,var(--accent),transparent 85%);
}
.timeline .time { color: var(--muted); font-size: 0.95rem; }
.timeline .role { font-weight: 700; margin: 0.15rem 0 0.25rem; }

/* ===== Experience timeline ===== */
#experience .timeline { border-left: none; margin-left: 0; padding-left: 0; list-style: none; }
.exp-timeline { position: relative; }
.exp-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;   
  gap: 0.9rem;
  margin: 0 0 1.2rem 0;
}
.exp-item::after {
  content: "";
  position: absolute;
  left: 28px;                
  top: 56px;                 
  bottom: -1.2rem;
  width: 2px;
  background: linear-gradient(180deg, var(--border), color-mix(in oklab, var(--accent), transparent 80%));
}
.exp-item:last-child::after { display: none; }
.exp-node {
  width: 56px; height: 56px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), transparent);
  box-shadow: 0 12px 28px -18px var(--ring);
  display: grid; place-items: center;
  overflow: hidden;
}
.exp-logo {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 6px;
  filter: saturate(1.05) contrast(1.05);
}
.exp-content { padding-top: 0.15rem; }
.exp-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.6rem; flex-wrap: wrap;
}
.exp-company { margin: 0; font-size: 1.05rem; font-weight: 800; letter-spacing: 0.01em; }
.exp-meta { margin-top: 0.2rem; color: var(--muted); display: flex; gap: 0.5rem; flex-wrap: wrap; }
.exp-loc { color: var(--muted); }
.pill {
  font-size: 0.8rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--surface), transparent);
  color: var(--muted);
  font-weight: 600;
}
.exp-roles { margin: 0.55rem 0 0; padding: 0.1rem 0 0 0; list-style: none; }
.exp-roles li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.15rem;
  border-left: 2px dashed var(--border);
}
.exp-roles li::before {
  content: "";
  position: absolute; left: -6px; top: 0.95rem;
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent), transparent 85%);
}
.role-line { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap; }
.role-title { font-weight: 700; }
.role-years { font-weight: 600; }
.exp-cover {
  margin: 0.8rem 0 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 30px 60px -40px var(--ring);
}
.exp-cover img {
  width: 100%; height: 220px;
  object-fit: cover; display: block;
  transform: scale(1.01);
  transition: transform 300ms ease;
}
.exp-cover:hover img { transform: scale(1.04); }
.exp-cover figcaption { padding: 0.5rem 0.75rem; }
.exp-item:hover .exp-node { border-color: var(--accent); box-shadow: 0 18px 40px -22px var(--ring); }
.exp-item:hover .exp-company { color: color-mix(in oklab, var(--text), var(--accent) 25%); }


/* ===== Education cards ===== */
#education .timeline { border-left: none; margin-left: 0; padding-left: 0; list-style: none; }

.edu-timeline { position: relative; }
.edu-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;  /* node | content */
  gap: 0.9rem;
  padding-left: 0;                  /* override generic timeline padding */
  margin: 0 0 1.2rem 0;
}

/* vertical rail between nodes */
.edu-item::after {
  content: "";
  position: absolute;
  left: 28px;                      
  top: 56px;                        
  bottom: -1.2rem;                
  width: 2px;
  background: linear-gradient(180deg, var(--border), color-mix(in oklab, var(--accent), transparent 80%));
}
.edu-item:last-child::after { display: none; }
.edu-node {
  width: 56px; height: 56px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), transparent);
  box-shadow: 0 12px 28px -18px var(--ring);
  display: grid; place-items: center;
  overflow: hidden;
}
.edu-logo {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 6px;
  filter: saturate(1.05) contrast(1.05);
}
.edu-content { padding-top: 0.15rem; }
.edu-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.6rem; flex-wrap: wrap;
}
.edu-school { margin: 0; font-size: 1.05rem; font-weight: 800; letter-spacing: 0.01em; }
.edu-meta { margin-top: 0.2rem; color: var(--muted); display: flex; gap: 0.4rem; flex-wrap: wrap; }
.edu-degree { font-weight: 600; }
.pill {
  font-size: 0.8rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--surface), transparent);
  color: var(--muted);
}
.edu-years { font-weight: 600; }
.edu-bullets { margin: 0.4rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.edu-bullets li { margin: 0.25rem 0; }
.edu-item:hover .edu-node { border-color: var(--accent); box-shadow: 0 18px 40px -22px var(--ring); }
.edu-item:hover .edu-school { color: color-mix(in oklab, var(--text), var(--accent) 25%); }

/* Skills */
.skills { display:grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.skill-col { background: var(--surface); border:1px solid var(--border); border-radius: 14px; padding: 1rem; }
.skill-col h4 { margin: 0 0 0.6rem; }

/* Contact */
.contact { display:flex; gap:0.6rem; flex-wrap: wrap; }

/* Footer */
.site-footer { border-top:1px solid var(--border); margin-top: 3rem; }
.site-footer .container { padding: 1rem 0; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .metrics { grid-template-columns: repeat(2,1fr); }
  .skills { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .exp-item { grid-template-columns: 44px 1fr; }
  .exp-node { width: 44px; height: 44px; border-radius: 10px; }
  .exp-item::after { left: 22px; top: 44px; }
}
@media (max-width: 520px) {
  .edu-item { grid-template-columns: 44px 1fr; }
  .edu-node { width: 44px; height: 44px; border-radius: 10px; }
  .edu-item::after { left: 22px; top: 44px; }
  .edu-logo { padding: 4px; }
}