:root{
  --bg: #0b0f17;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.09);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --border: rgba(255,255,255,0.12);
  --shadow: 0 18px 60px rgba(0,0,0,0.35);
  --radius: 18px;
  --max: 1100px;

  --accent1: #7c3aed; /* purple */
  --accent2: #22c55e; /* green */
  --accent3: #06b6d4; /* cyan */
}

[data-theme="light"]{
  --bg: #f7f7fb;
  --panel: rgba(0,0,0,0.05);
  --panel2: rgba(0,0,0,0.08);
  --text: rgba(0,0,0,0.88);
  --muted: rgba(0,0,0,0.62);
  --border: rgba(0,0,0,0.12);
  --shadow: 0 18px 60px rgba(0,0,0,0.12);
}

*{ 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";
  background: radial-gradient(1200px 800px at 20% -10%, rgba(124,58,237,0.25), transparent 55%),
              radial-gradient(900px 700px at 90% 10%, rgba(6,182,212,0.18), transparent 60%),
              radial-gradient(900px 700px at 80% 110%, rgba(34,197,94,0.14), transparent 60%),
              var(--bg);
  color: var(--text);
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.progress{
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  z-index: 1000;
  background: linear-gradient(90deg, var(--accent1), var(--accent3), var(--accent2));
}

.header{
  position: sticky;
  top: 0;
  z-index: 999;
  backdrop-filter: blur(14px);
  background: rgba(0,0,0,0.18);
  border-bottom: 1px solid var(--border);
}
[data-theme="light"] .header{ background: rgba(255,255,255,0.65); }

.nav{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.brand__dot{
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent1), var(--accent3));
  box-shadow: 0 0 0 6px rgba(124,58,237,0.12);
}

.nav__links{
  display:flex;
  gap: 18px;
  align-items:center;
}
.nav__links a{
  opacity: 0.9;
  padding: 8px 10px;
  border-radius: 12px;
}
.nav__links a:hover{
  background: var(--panel);
  text-decoration: none;
}

.nav__actions{ display:flex; gap: 10px; align-items:center; }
.nav__menu{ display:none; }

.iconbtn{
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow);
}
.iconbtn:hover{ background: var(--panel2); }

.mobile{
  display:none;
  padding: 10px 0 16px;
}
.mobile a{
  display:block;
  padding: 12px 10px;
  border-radius: 14px;
  border: 1px solid transparent;
}
.mobile a:hover{
  background: var(--panel);
  border-color: var(--border);
  text-decoration: none;
}

.hero{ padding: 70px 0 35px; }
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 22px;
  align-items: start;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 10px 12px;
  border-radius: 999px;
  width: fit-content;
  box-shadow: var(--shadow);
}

h1{
  margin: 16px 0 10px;
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.8px;
}
h2{
  margin: 0;
  font-size: clamp(24px, 2.6vw, 34px);
  letter-spacing: -0.4px;
}
h3{ margin: 0 0 10px; letter-spacing: -0.2px; }

.lead{
  margin: 12px 0 20px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 62ch;
}

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

.gradient{
  background: linear-gradient(90deg, var(--accent1), var(--accent3), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__cta{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow);
}
.btn:hover{ background: var(--panel2); text-decoration: none; }
.btn--primary{
  border-color: rgba(124,58,237,0.35);
  background: linear-gradient(135deg, rgba(124,58,237,0.85), rgba(6,182,212,0.75));
}
.btn--primary:hover{ filter: brightness(1.06); }
.btn--ghost{ background: transparent; }
.btn--wide{ width: 100%; margin-top: 14px; }

.social{
  margin-top: 18px;
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
}
.social__link{
  color: var(--muted);
  padding: 6px 8px;
  border-radius: 12px;
}
.social__link:hover{
  color: var(--text);
  background: var(--panel);
  text-decoration: none;
}

.hero__card .card{
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card__top{
  display:flex;
  align-items:center;
  gap: 12px;
  margin-bottom: 14px;
}
.avatar{
  width: 44px; height: 44px;
  border-radius: 16px;
  display:grid; place-items:center;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent1), var(--accent3));
}
.card__name{ margin:0; font-weight: 800; }
.card__role{ margin: 2px 0 0; color: var(--muted); font-size: 0.95rem; }

.card__stats{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 12px 0 14px;
}
.stat{
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 16px;
  padding: 10px;
  text-align:center;
}
.stat__num{ margin:0; font-weight: 800; font-size: 1.1rem; }
.stat__label{ margin: 2px 0 0; color: var(--muted); font-size: 0.9rem; }

.card__tags{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.tag{
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--muted);
}

.section{ padding: 46px 0; }
.section__head{
  margin-bottom: 18px;
}
.section__head--row{
  display:flex;
  align-items:flex-end;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.grid{ display:grid; gap: 14px; }
.grid--2{ grid-template-columns: repeat(2, 1fr); }
.grid--3{ grid-template-columns: repeat(3, 1fr); }

.panel{
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.list{
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.pillrow{ display:flex; flex-wrap: wrap; gap: 8px; }
.pill{
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.10);
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text);
}
[data-theme="light"] .pill{ background: rgba(255,255,255,0.6); }

.filters{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}
.chipbtn{
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 10px;
  cursor: pointer;
}
.chipbtn:hover{ background: var(--panel); }
.chipbtn.is-active{
  background: linear-gradient(135deg, rgba(124,58,237,0.75), rgba(6,182,212,0.65));
  border-color: rgba(124,58,237,0.30);
}

.projects{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 14px;
}
.project{
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display:flex;
  flex-direction: column;
}
.project__thumb{
  height: 120px;
  display:flex;
  align-items:flex-end;
  padding: 14px;
  background: linear-gradient(135deg, rgba(124,58,237,0.22), rgba(6,182,212,0.18), rgba(34,197,94,0.16));
  border-bottom: 1px solid var(--border);
}
.project__thumb span{
  font-weight: 900;
  opacity: 0.9;
}
.project__body{ padding: 14px; display:flex; flex-direction: column; gap: 10px; }
.project__meta{ display:flex; gap: 8px; flex-wrap: wrap; }
.project__links{ display:flex; gap: 14px; color: var(--muted); }
.project__links a:hover{ color: var(--text); text-decoration: none; }

.form label{ display:grid; gap: 7px; margin-bottom: 12px; }
input, textarea{
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 11px 12px;
  outline: none;
}
[data-theme="light"] input, [data-theme="light"] textarea{
  background: rgba(255,255,255,0.75);
}
input:focus, textarea:focus{ border-color: rgba(6,182,212,0.45); }
.form__hint{ margin: 10px 0 0; font-size: 0.92rem; }

.footer{
  padding: 26px 0 40px;
  border-top: 1px solid var(--border);
}
.footer__row{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.toTop{ color: var(--muted); }
.toTop:hover{ color: var(--text); text-decoration: none; }

@media (max-width: 920px){
  .hero__grid{ grid-template-columns: 1fr; }
  .projects{ grid-template-columns: repeat(2, 1fr); }
  .grid--3{ grid-template-columns: 1fr; }
}

@media (max-width: 700px){
  .nav__links{ display:none; }
  .nav__menu{ display:inline-flex; }
  .mobile{ display:block; }
  .grid--2{ grid-template-columns: 1fr; }
  .projects{ grid-template-columns: 1fr; }
}