/* Light-blue, bubbly theme — single-file CSS */
:root{
  --bg1:#eaf6ff;
  --bg2:#d8f0ff;
  --card:#ffffffcc;
  --text:#0b1b2b;
  --muted:#466074;
  --line:#cfe6ff;
  --accent:#5ab6ff;
  --accent2:#7ed7ff;
  --shadow: 0 14px 40px rgba(11,27,43,.12);
  --radius: 22px;
  --ring: rgba(90,182,255,.45);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% 10%, var(--bg2), transparent 60%),
              radial-gradient(900px 500px at 80% 20%, #cfefff, transparent 60%),
              linear-gradient(180deg, var(--bg1), #f6fbff);
  overflow-x:hidden;
}

.bg{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-1;
}

.bubble{
  position:absolute;
  width:320px; height:320px;
  border-radius:999px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,.35) 35%, rgba(126,215,255,.22) 70%, rgba(90,182,255,.12));
  filter: blur(.2px);
  box-shadow: 0 0 0 1px rgba(255,255,255,.45) inset;
  animation: float 14s ease-in-out infinite;
  opacity:.85;
}

.b1{ left:-60px; top:120px; animation-duration: 16s; transform: scale(1.05); }
.b2{ right:-120px; top:80px; width:420px; height:420px; animation-duration: 18s; }
.b3{ left:12%; bottom:-180px; width:520px; height:520px; animation-duration: 20s; opacity:.7;}
.b4{ right:18%; bottom:-90px; width:260px; height:260px; animation-duration: 15s; opacity:.8;}
.b5{ left:60%; top:55%; width:220px; height:220px; animation-duration: 13s; opacity:.65;}

@keyframes float{
  0%,100%{ transform: translateY(0px) translateX(0px); }
  50%{ transform: translateY(-18px) translateX(10px); }
}

.container{
  width:min(1050px, calc(100% - 40px));
  margin: 0 auto;
  padding: 110px 0 60px;
}

.topbar{
  position:fixed;
  top:0; left:0; right:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 16px 22px;
  backdrop-filter: blur(12px);
  background: rgba(234,246,255,.65);
  border-bottom: 1px solid rgba(207,230,255,.7);
  z-index:10;
}

.brand{
  text-decoration:none;
  color:var(--text);
  font-weight: 700;
  letter-spacing:-0.02em;
}

.nav{
  display:flex;
  gap:14px;
  align-items:center;
}

.nav a{
  text-decoration:none;
  color:var(--muted);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 10px;
  border-radius: 12px;
}

.nav a:hover{
  color:var(--text);
  background: rgba(255,255,255,.55);
}

.card{
  background: var(--card);
  border: 1px solid rgba(207,230,255,.75);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
}

.hero{
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 24px;
  align-items: center;
}

.pill{
  display:inline-block;
  margin:0 0 12px;
  padding: 8px 12px;
  border-radius:999px;
  background: rgba(90,182,255,.14);
  border: 1px solid rgba(90,182,255,.25);
  color: #0c3b63;
  font-weight: 700;
  font-size: 12px;
}

h1{
  margin:0;
  font-size: clamp(34px, 5vw, 52px);
  letter-spacing:-0.04em;
  line-height:1.05;
}

.sub{
  margin: 12px 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height:1.5;
}

.cta{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 12px 0 18px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  text-decoration:none;
  color:#06304e;
  background: linear-gradient(180deg, rgba(126,215,255,.95), rgba(90,182,255,.95));
  border: 1px solid rgba(90,182,255,.55);
  padding: 12px 14px;
  border-radius: 16px;
  font-weight: 800;
  letter-spacing:-0.01em;
  box-shadow: 0 10px 20px rgba(90,182,255,.18);
  transition: transform .12s ease, box-shadow .12s ease;
}

.btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(90,182,255,.22);
}

.btn.small{
  padding: 10px 12px;
  border-radius: 14px;
  font-size: 13px;
}

.btn.ghost{
  background: rgba(255,255,255,.6);
  border: 1px solid rgba(207,230,255,.95);
  box-shadow:none;
  color: var(--text);
}

.btn.ghost:hover{
  box-shadow: 0 14px 28px rgba(11,27,43,.10);
}

.meta{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 10px;
}

.meta-item{
  padding: 14px;
  border-radius: 18px;
  border: 1px dashed rgba(207,230,255,.95);
  background: rgba(255,255,255,.45);
}

.meta-label{
  display:block;
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 4px;
}
.meta-value{
  font-weight: 700;
  color: #0b2b44;
  font-size: 13.5px;
}

.hero-right{
  display:flex;
  flex-direction:column;
  gap: 16px;
  align-items: center;
}

.avatar-wrap{
  position:relative;
  width: 220px;
  height: 220px;
  border-radius: 999px;
}

.avatar{
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 999px;
  border: 6px solid rgba(255,255,255,.75);
  box-shadow: 0 18px 40px rgba(11,27,43,.14);
}

.ring{
  position:absolute;
  inset:-14px;
  border-radius:999px;
  border: 2px solid var(--ring);
  box-shadow: 0 0 0 10px rgba(90,182,255,.07);
}

.mini-card{
  width:100%;
  border-radius: 18px;
  border: 1px solid rgba(207,230,255,.85);
  background: rgba(255,255,255,.55);
  padding: 16px;
}

.mini-title{
  font-weight: 900;
  margin-bottom: 10px;
  letter-spacing: -.02em;
}

.link{
  display:block;
  color: #0b3d66;
  text-decoration:none;
  font-weight: 700;
  padding: 8px 10px;
  border-radius: 14px;
}

.link:hover{
  background: rgba(90,182,255,.12);
}

.grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}

h2{
  margin: 0 0 12px;
  letter-spacing:-0.02em;
}

h3{
  margin: 0 0 10px;
  font-size: 15px;
  letter-spacing:-0.01em;
}

p{ margin: 0 0 12px; line-height: 1.65; color: var(--text); }
.note{
  color: var(--muted);
  font-size: 13px;
}
.big{ font-size: 18px; }

.cols{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.col{
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(207,230,255,.85);
  background: rgba(255,255,255,.45);
}

ul{
  margin: 0;
  padding-left: 18px;
  color: var(--text);
}
li{ margin: 8px 0; color: var(--muted); font-weight: 600; }

.steps{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  font-weight: 650;
}
.steps li{ color: var(--muted); }

.footer{
  margin-top: 18px;
  padding: 18px 6px 0;
  display:flex;
  justify-content:center;
  gap: 10px;
  color: var(--muted);
  font-weight: 650;
}

.dot{ opacity:.55; }
.muted{ opacity:.85; }

code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  background: rgba(90,182,255,.10);
  padding: 2px 6px;
  border-radius: 10px;
  border: 1px solid rgba(207,230,255,.85);
}

/* Responsive */
@media (max-width: 900px){
  .hero{ grid-template-columns: 1fr; }
  .hero-right{ align-items:flex-start; }
  .avatar-wrap{ width: 200px; height: 200px; }
  .meta{ grid-template-columns: 1fr; }
  .cols{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: 1fr; }
  .nav a{ display:none; }
  .nav a.btn{ display:inline-flex; }
}