/* ---------- Theme ---------- */
:root{
  --bg: #0b1020;
  --bg2:#0c1326;
  --card:#111a33;
  --text:#eaf0ff;
  --muted: rgba(234,240,255,.72);
  --border: rgba(234,240,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.35);
  --accent:#7aa2ff;
  --accent2:#86f7d6;
  --radius: 18px;
}

:root[data-theme="light"]{
  --bg:#f7f8ff;
  --bg2:#eef1ff;
  --card:#ffffff;
  --text:#0e1430;
  --muted: rgba(14,20,48,.72);
  --border: rgba(14,20,48,.10);
  --shadow: 0 18px 60px rgba(14,20,48,.12);
  --accent:#2a5bff;
  --accent2:#00b894;
}

/* ---------- Base ---------- */
*{ 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, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(122,162,255,.35), transparent 60%),
    radial-gradient(900px 500px at 95% 10%, rgba(134,247,214,.22), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset: 4px; }
.wrap{ width:min(1120px, calc(100% - 40px)); margin:0 auto; }

.skip-link{
  position:absolute;
  left:-999px;
  top:10px;
  background:var(--card);
  color:var(--text);
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--border);
}
.skip-link:focus{ left:20px; z-index:9999; }

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(12px);
  background: rgba(0,0,0,.10);
  border-bottom: 1px solid transparent;
}
:root[data-theme="light"] .site-header{
  background: rgba(255,255,255,.65);
}

.site-header.scrolled{
  border-bottom-color: var(--border);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  letter-spacing:.2px;
}
.dot{
  width:10px; height:10px; border-radius:50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(122,162,255,.12);
}

.nav-links{
  display:flex;
  align-items:center;
  gap:16px;
}
.nav-links a{
  color:var(--muted);
  font-weight:600;
  padding:10px 10px;
  border-radius: 12px;
}
.nav-links a:hover{
  color:var(--text);
  background: rgba(255,255,255,.06);
  text-decoration:none;
}
.pill{
  color: var(--text) !important;
  background: rgba(122,162,255,.18);
  border: 1px solid rgba(122,162,255,.28);
}
.pill:hover{
  background: rgba(122,162,255,.26) !important;
}

.nav-right{
  display:flex;
  align-items:center;
  gap:10px;
}

.icon-btn{
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  border-radius: 14px;
  padding:10px 12px;
  cursor:pointer;
  box-shadow: none;
}
.icon-btn:hover{ background: rgba(255,255,255,.10); }

.burger{ display:none; padding:10px 12px; }
.bar{
  display:block;
  width:18px;
  height:2px;
  background: var(--text);
  border-radius: 2px;
  margin:4px 0;
  opacity:.9;
}

/* ---------- Hero ---------- */
.hero{
  display:grid;
  grid-template-columns: 1.35fr .85fr;
  gap:24px;
  padding: 56px 0 24px;
  align-items: center;
}
.kicker{
  display:inline-block;
  color: var(--muted);
  border:1px solid var(--border);
  padding:8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
}
h1{
  font-size: clamp(2rem, 4.2vw, 3.25rem);
  line-height: 1.08;
  margin:14px 0 10px;
  letter-spacing: -0.02em;
}
.accent{
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead{
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
  margin: 0 0 18px;
}

.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(122,162,255,.35);
  background: rgba(122,162,255,.22);
  color: var(--text);
  font-weight: 700;
  text-decoration:none;
  cursor:pointer;
}
.btn:hover{ background: rgba(122,162,255,.30); text-decoration:none; }
.btn.ghost{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
}
.btn.ghost:hover{ background: rgba(255,255,255,.10); }

.stats{
  display:flex;
  gap:14px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.stat{
  border:1px solid var(--border);
  background: rgba(255,255,255,.05);
  border-radius: var(--radius);
  padding: 12px 14px;
  min-width: 140px;
}
.stat-num{
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.stat-label{
  color: var(--muted);
  font-weight: 600;
  margin-top: 2px;
}

/* ---------- Glass card ---------- */
.glass-card{
  position:relative;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  box-shadow: var(--shadow);
  overflow:hidden;
}
.glass-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom: 14px;
}
.avatar{
  width:44px; height:44px;
  display:grid; place-items:center;
  border-radius: 14px;
  font-weight: 900;
  background: linear-gradient(135deg, rgba(122,162,255,.35), rgba(134,247,214,.22));
  border: 1px solid rgba(255,255,255,.18);
}
.glass-title{ font-weight: 800; }
.glass-sub{ color: var(--muted); font-weight: 600; margin-top: 2px; }

.chips{
  display:flex;
  flex-wrap: wrap;
  gap:10px;
  margin: 12px 0 14px;
}
.chip{
  padding:8px 10px;
  border-radius: 999px;
  border:1px solid var(--border);
  color: var(--muted);
  background: rgba(255,255,255,.05);
  font-weight: 700;
  font-size: .92rem;
}

.mini{
  border-top:1px solid var(--border);
  padding-top: 12px;
}
.mini-row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding: 9px 0;
}
.mini-key{ color: var(--muted); font-weight: 700; }
.mini-val a{ color: var(--text); text-decoration: underline; text-underline-offset: 4px; }
.sep{ opacity:.6; margin:0 6px; }

.glow{
  position:absolute;
  inset:-120px -140px auto auto;
  width:260px; height:260px;
  background: radial-gradient(circle at 30% 30%, rgba(122,162,255,.55), transparent 60%);
  filter: blur(18px);
  opacity:.8;
  pointer-events:none;
}

/* ---------- Sections ---------- */
.section{
  padding: 34px 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom: 16px;
}
.section-head h2{
  margin:0;
  font-size: 1.8rem;
  letter-spacing: -0.02em;
}
.section-head p{
  margin:0;
  color: var(--muted);
  font-weight: 600;
  max-width: 56ch;
}

.grid-2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}

.card{
  border:1px solid var(--border);
  background: rgba(255,255,255,.05);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 1px 0 rgba(255,255,255,.06) inset;
}

.card h3{ margin:0 0 8px; letter-spacing: -0.01em; }
.card p{ margin:0; color: var(--muted); line-height: 1.65; font-weight: 600; }

.muted{ color: var(--muted); }

/* ---------- Projects ---------- */
.filters{
  display:flex;
  gap:10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.filter{
  border:1px solid var(--border);
  background: rgba(255,255,255,.05);
  padding:10px 12px;
  border-radius: 999px;
  cursor:pointer;
  color: var(--muted);
  font-weight: 800;
}
.filter:hover{ background: rgba(255,255,255,.10); color: var(--text); }
.filter.active{
  color: var(--text);
  border-color: rgba(122,162,255,.35);
  background: rgba(122,162,255,.20);
}

.projects{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.project{
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  border-radius: var(--radius);
  padding: 16px;
  text-decoration:none;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.project:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.08);
  border-color: rgba(122,162,255,.28);
  text-decoration:none;
}
.project-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom: 6px;
}
.project h3{
  margin:0;
  letter-spacing: -0.01em;
}
.badge{
  font-weight: 900;
  font-size: .78rem;
  padding: 7px 10px;
  border-radius: 999px;
  border:1px solid rgba(122,162,255,.35);
  background: rgba(122,162,255,.18);
}
.project p{
  margin: 0 0 10px;
  color: var(--muted);
  font-weight: 650;
  line-height: 1.55;
}
.meta{
  display:flex;
  gap:8px;
  flex-wrap: wrap;
}
.meta span{
  border:1px solid var(--border);
  color: var(--muted);
  background: rgba(255,255,255,.04);
  border-radius: 999px;
  padding: 7px 10px;
  font-weight: 800;
  font-size: .82rem;
}

/* ---------- Skills ---------- */
.pill-grid{
  display:flex;
  flex-wrap: wrap;
  gap:10px;
}
.pill-skill{
  border:1px solid var(--border);
  border-radius: 999px;
  padding: 10px 12px;
  font-weight: 900;
  color: var(--muted);
  background: rgba(255,255,255,.04);
}

/* ---------- Contact ---------- */
.contact-links{
  display:flex;
  flex-direction: column;
  gap:10px;
  margin-top: 8px;
}
.contact-link{
  display:flex;
  justify-content:space-between;
  gap:10px;
  padding: 12px 12px;
  border-radius: 14px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  text-decoration:none;
  font-weight: 800;
}
.contact-link:hover{
  background: rgba(255,255,255,.08);
  text-decoration:none;
}
.field{
  display:flex;
  flex-direction: column;
  gap:8px;
  margin-bottom: 12px;
}
.field span{ font-weight: 900; }
input, textarea{
  width:100%;
  border-radius: 14px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  padding: 12px 12px;
  outline: none;
  font-size: 1rem;
}
textarea{ min-height: 120px; resize: vertical; }
input:focus, textarea:focus{
  border-color: rgba(122,162,255,.55);
  box-shadow: 0 0 0 4px rgba(122,162,255,.18);
}
.error{ min-height: 1.1em; color: rgba(255,120,120,.92); font-weight: 800; }
.form-note{ margin: 10px 0 0; font-weight: 700; }

/* ---------- Footer ---------- */
.footer{
  padding: 26px 0 50px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  color: var(--muted);
}
.footer a{ color: var(--muted); font-weight: 800; }
.footer a:hover{ color: var(--text); text-decoration:none; }

/* ---------- Reveal animations ---------- */
.reveal{
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in{
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero{ grid-template-columns: 1fr; padding-top: 38px; }
  .projects{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .section-head{ flex-direction: column; align-items:flex-start; }
}

@media (max-width: 760px){
  .nav-links{
    position:absolute;
    left: 20px;
    right: 20px;
    top: 64px;
    display:none;
    flex-direction: column;
    gap:8px;
    padding: 12px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: rgba(0,0,0,.20);
    backdrop-filter: blur(12px);
  }
  :root[data-theme="light"] .nav-links{
    background: rgba(255,255,255,.80);
  }

  .nav-links.open{ display:flex; }
  .nav-links a{ padding:12px; }
  .burger{ display:inline-flex; flex-direction: column; }
}