:root{
  --bg:#0b1220;
  --card:#101a30;
  --text:#e8eefc;
  --muted:#a9b4d0;
  --line:rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
  --max: 1100px;
}

/* Light mode via toggle */
:root[data-theme="light"]{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#121a2a;
  --muted:#4a556d;
  --line:rgba(0,0,0,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.10);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: radial-gradient(1200px 800px at 20% 0%, rgba(99,102,241,.20), transparent 60%),
              radial-gradient(900px 600px at 80% 10%, rgba(16,185,129,.18), transparent 60%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}
a{color:inherit}
.wrap{max-width:var(--max); margin:0 auto; padding:0 20px}

/* UI atoms */
.pill{
  display:inline-flex; gap:8px; align-items:center;
  padding:8px 12px; border:1px solid var(--line); border-radius:999px;
  background: rgba(255,255,255,.03);
  color:var(--muted);
  backdrop-filter: blur(6px);
}
.btn{
  display:inline-flex; gap:10px; align-items:center; justify-content:center;
  padding:12px 14px; border-radius:12px; border:1px solid var(--line);
  background: rgba(255,255,255,.05);
  color:var(--text); text-decoration:none;
  box-shadow: 0 1px 0 rgba(255,255,255,.05) inset;
  transition: transform .15s ease, background .15s ease;
  cursor:pointer;
}
.btn:hover{transform: translateY(-1px); background: rgba(255,255,255,.09)}
.btn.primary{
  background: linear-gradient(135deg, rgba(99,102,241,.9), rgba(16,185,129,.85));
  border:none;
}
.btn.primary:hover{filter:brightness(1.05)}
.btn.ghost{background:transparent}
.icon{width:18px; height:18px; display:inline-block}

/* Header / Nav */
header{
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid var(--line);
  background: rgba(10,16,30,.55);
  backdrop-filter: blur(10px);
}
:root[data-theme="light"] header{background: rgba(246,247,251,.75);}
nav{display:flex; align-items:center; justify-content:space-between; padding:14px 0; position:relative}
.brand{display:flex; gap:10px; align-items:center; text-decoration:none}
.logo{
  width:36px; height:36px; border-radius:12px;
  background: linear-gradient(135deg, rgba(99,102,241,.95), rgba(16,185,129,.85));
  box-shadow: var(--shadow);
}
.brandLogo{
  width:36px; height:36px; border-radius:50%; object-fit:cover;
  border:2px solid rgba(255,255,255,.15);
  box-shadow: var(--shadow);
}
.brand span{font-weight:700; letter-spacing:.2px}
.navlinks{display:flex; gap:14px; align-items:center}
.navlinks a{
  text-decoration:none; color:var(--muted);
  padding:10px 10px; border-radius:12px;
  transition: background .15s ease, color .15s ease;
}
.navlinks a:hover{background: rgba(255,255,255,.06); color:var(--text)}
.navlinks a.active{background: rgba(255,255,255,.09); color:var(--text)}
.menuBtn{display:none}
.navCta{
  position:relative;
}
.navCta::after{
  content:"";
  position:absolute;
  inset:-2px;
  border-radius:14px;
  opacity:.35;
  background:linear-gradient(135deg, rgba(99,102,241,.6), rgba(16,185,129,.6));
  filter:blur(8px);
  z-index:-1;
}
@media (max-width: 860px){
  .menuBtn{display:inline-flex}
  .navlinks{display:none}
  .navlinks.open{
    display:flex; flex-direction:column; align-items:flex-start;
    position:absolute; left:20px; right:20px; top:68px;
    background: var(--card); border:1px solid var(--line);
    padding:12px; border-radius: var(--radius); box-shadow: var(--shadow);
  }
}

/* Sections / Layout */
section{padding:70px 0}
.hero{padding:52px 0 30px}
.grid{
  display:grid; grid-template-columns: 1.15fr .85fr; gap:26px;
  align-items:start;
}
@media (max-width: 960px){ .grid{grid-template-columns:1fr} }

.card{
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
:root[data-theme="light"] .card{background: rgba(255,255,255,.85)}
.card.pad{padding:22px}

h1{ font-size:34px; line-height:1.18; margin:14px 0 14px; }
@media (max-width: 980px){ h1{font-size:30px;} }
@media (max-width: 520px){ h1{font-size:26px;} }
.hero h1{ max-width: 720px; }
h2{font-size:28px; margin:0 0 14px}
h3{margin:0 0 6px}
p{margin:0 0 14px; color:var(--muted)}
ul{margin:10px 0 0 18px; color:var(--muted)}
li{margin:6px 0}

.heroActions{display:flex; flex-wrap:wrap; gap:12px; margin-top:14px}
.metaRow{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}

/* Projects */
.sectionTop{
  display:flex; gap:12px; align-items:flex-end; justify-content:space-between;
  margin-bottom:16px; flex-wrap:wrap;
}
.filters{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
.input{
  padding:10px 12px; border-radius:12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  color:var(--text);
  outline:none;
  min-width: 220px;
}
:root[data-theme="light"] .input{background: rgba(0,0,0,.03)}
.chips{display:flex; gap:8px; flex-wrap:wrap}
.chip{
  padding:8px 10px; border-radius:999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color:var(--muted);
  cursor:pointer;
  user-select:none;
}
.chip.active{color:var(--text); background: rgba(255,255,255,.10)}
.projects{display:grid; grid-template-columns: repeat(3, 1fr); gap:14px;}
@media (max-width: 980px){ .projects{grid-template-columns: repeat(2, 1fr)} }
@media (max-width: 620px){ .projects{grid-template-columns: 1fr} }

.proj{
  display:flex; flex-direction:column; gap:10px;
  padding:16px;
  border-radius: var(--radius);
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  min-height: 190px;
  transition: transform .15s ease, background .15s ease;
}
.proj:hover{transform: translateY(-2px); background: rgba(255,255,255,.06)}
.tags{display:flex; gap:8px; flex-wrap:wrap}
.tag{font-size:12px; padding:4px 8px; border-radius:999px; border:1px solid var(--line); color:var(--muted)}
.projLinks{display:flex; gap:10px; margin-top:auto}

/* Timeline blocks */
.timeline{display:grid; gap:12px}
.item{
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.03)
}
.item small{color:var(--muted)}

/* Footer */
footer{padding:30px 0 50px; border-top:1px solid var(--line); color:var(--muted)}
.foot{display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap}
.row{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
.sr{position:absolute; left:-9999px}

/* ===== Index: profile card ===== */
.profileCard{ text-align:center; }
.profilePhoto{
  width:160px;
  height:160px;
  object-fit:cover;
  border-radius:50%;
  margin-bottom:14px;
  border:3px solid rgba(255,255,255,.15);
  box-shadow: 0 10px 25px rgba(0,0,0,.35);
}

/* ===== Portfolio page layout additions ===== */
.portfolioHero{ padding:40px 0 14px; }
.portfolioGrid{
  display:grid; grid-template-columns: 1.1fr .9fr; gap:18px; align-items:start;
}
@media (max-width: 960px){ .portfolioGrid{grid-template-columns:1fr} }

.toc{display:grid; gap:10px}
.toc a{
  text-decoration:none;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,.03);
  color: var(--muted);
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.toc a:hover{
  background: rgba(255,255,255,.07);
  color: var(--text);
  transform: translateY(-1px)
}
.kpi{display:flex; gap:10px; flex-wrap:wrap; margin-top:10px}
.kpi .pill{background: rgba(255,255,255,.04)}
.detail{scroll-margin-top: 92px}
.subgrid{display:grid; grid-template-columns: 1fr 1fr; gap:14px; margin-top:14px}
@media (max-width: 860px){ .subgrid{grid-template-columns:1fr} }
.box{
  padding:14px;
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.03);
}

/* ===== Portfolio screenshots ===== */

.screenshotGrid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:14px;
  margin-top:16px;
}

@media (max-width: 700px){
  .screenshotGrid{
    grid-template-columns: 1fr;
  }
}

.screenshotGrid img{
  width:100%;
  max-width:520px;     /* 🔹 limit horizontal growth */
  max-height:320px;    /* 🔹 limit vertical growth */
  object-fit:contain;  /* 🔹 keep full image visible */
  border-radius:12px;
  border:1px solid var(--line);
  box-shadow: var(--shadow);
  margin:auto;         /* 🔹 center inside grid cell */
  display:block;
}

@media (max-width: 700px){
  .screenshotGrid img{
    max-width:100%;
    max-height:260px;
  }
}

.screenshotGrid img:hover{
  transform: scale(1.02);
}

/* ===== YouTube link cards (non-embed) ===== */

.videoLinks{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:14px;
  margin-top:16px;
}

@media (max-width: 700px){
  .videoLinks{
    grid-template-columns: 1fr;
  }
}

.videoLinkCard{
  display:block;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  text-decoration:none;
  background: rgba(255,255,255,.03);
  box-shadow: var(--shadow);
  transition: transform .15s ease;
}

.videoLinkCard:hover{
  transform: translateY(-2px);
}

.videoLinkCard img{
  width:100%;
  display:block;
}

.videoLinkContent{
  padding:12px;
}

.videoLinkContent h3{
  margin:0 0 6px;
  font-size:16px;
}

.videoLinkContent p{
  margin:0;
  font-size:14px;
  color:var(--muted);
}

.disclaimer{
  margin-top:16px;
  padding:10px 12px;
  font-size:13px;
  color:var(--muted);
  border:1px dashed var(--line);
  border-radius:10px;
  background: rgba(255,255,255,.03);
}

.disclaimerSection{
  padding: 18px 0 0;   /* keeps it tight under hero */
}

.disclaimerSection + .detail{
  padding-top: 28px;   /* tighter than default section padding */
}

.disclaimerTitle{
  margin:0 0 6px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.4px;
  text-transform:uppercase;
  color:var(--text);
}