:root{
  --bg: #0b0d12;
  --card: rgba(255,255,255,0.06);
  --card2: rgba(255,255,255,0.09);
  --text: #f5f7ff;
  --muted: rgba(245,247,255,0.72);
  --border: rgba(255,255,255,0.12);
  --shadow: 0 18px 60px rgba(0,0,0,0.55);
  --radius: 18px;
  --max: 860px;
}

[data-theme="light"]{
  --bg: #f5f6fb;
  --card: rgba(0,0,0,0.04);
  --card2: rgba(0,0,0,0.06);
  --text: #12131a;
  --muted: rgba(18,19,26,0.72);
  --border: rgba(0,0,0,0.10);
  --shadow: 0 18px 60px rgba(20, 22, 35, 0.16);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% 0%, rgba(120,120,255,0.25), transparent 60%),
              radial-gradient(1000px 600px at 80% 10%, rgba(0,200,255,0.18), transparent 55%),
              var(--bg);
  color: var(--text);
}

.container{
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.18);
}
[data-theme="light"] .topbar{ background: rgba(255,255,255,0.7); }

.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 0;
}

.brand{
  font-weight: 800;
  letter-spacing: 0.2px;
  opacity: 0.9;
}

.icon-btn{
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 10px;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.hero{
  text-align:center;
  padding: 36px 0 20px;
}

.avatar{
  width: 104px;
  height: 104px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.title{
  margin: 14px 0 6px;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.02em;
}
.subtitle{
  margin: 0 auto;
  max-width: 52ch;
  color: var(--muted);
  line-height: 1.55;
}

.cta-row{
  margin-top: 14px;
  display:flex;
  gap: 10px;
  justify-content:center;
  flex-wrap: wrap;
}
.pill{
  text-decoration:none;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 600;
}

.card{
  margin: 18px 0;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--card), transparent 120%);
  box-shadow: var(--shadow);
}

h2{
  margin: 0 0 12px;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 720px){
  .grid{ grid-template-columns: 1fr 1fr; }
}

.link-btn{
  display:flex;
  align-items:center;
  gap: 10px;
  width: 100%;
  text-decoration:none;
  color: var(--text);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--card2), var(--card));
  padding: 14px 14px;
  border-radius: 14px;
  cursor: pointer;
  transition: transform .08s ease, border-color .08s ease;
}

.link-btn:hover{
  transform: translateY(-1px);
  border-color: rgba(255,255,255,0.22);
}

[data-theme="light"] .link-btn:hover{
  border-color: rgba(0,0,0,0.18);
}

.icon{ width: 26px; text-align:center; }

.hint{
  margin-left:auto;
  font-size: 12px;
  color: var(--muted);
}

.small{ font-size: 13px; }
.muted{ color: var(--muted); }

.bullets{
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.contact-row{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.wide{ justify-content: space-between; }
.wide .hint{ margin-left: 0; }

.toast{
  margin: 10px 0 0;
  min-height: 18px;
  color: var(--muted);
}

.footer{
  padding: 16px 0 30px;
  text-align:center;
}