:root{
  --bg:#ffffff;
  --text:#202124;
  --muted:#5f6368;
  --line:#dadce0;
  --chip:#f8f9fa;
  --chipHover:#f1f3f4;
  --shadow: 0 1px 6px rgba(32,33,36,.28);
  --radius: 28px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: Arial, Helvetica, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:18px;
  padding: 0 22px;
}

.topbar a{
  color: var(--text);
  text-decoration:none;
  font-size:13px;
}
.topbar a:hover{ text-decoration:underline; }

.dotbtn{
  width:40px;height:40px;
  border-radius:50%;
  border:none;
  background:transparent;
  cursor:pointer;
}
.dotbtn:hover{ background: var(--chipHover); }

.avatar{
  width:34px;height:34px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:#1a73e8;
  color:#fff;
  font-weight:700;
  font-size:14px;
}

.center{
  min-height: calc(100% - 64px - 60px);
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 18px;
}

.box{
  width: min(720px, 100%);
  text-align:center;
}

.brand-logo{
  width: 320px;
  max-width: 82%;
  height: auto;
  margin: 0 auto 20px;
  display:block;
  user-select:none;
}

.search-wrap{
  display:flex;
  align-items:center;
  gap:12px;
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 14px;
  transition: box-shadow .15s ease, border-color .15s ease;
}
.search-wrap:hover{
  box-shadow: var(--shadow);
  border-color: transparent;
}

.icon{
  width:18px;height:18px;
  opacity:.65;
  flex:0 0 auto;
}

.search-input{
  flex:1;
  border:none;
  outline:none;
  font-size:16px;
  padding: 6px 4px;
  background:transparent;
  color: var(--text);
}

.actions{
  margin-top: 26px;
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
}

.btn{
  border:1px solid transparent;
  background: var(--chip);
  padding: 10px 16px;
  border-radius: 4px;
  font-size:14px;
  cursor:pointer;
}
.btn:hover{
  border-color: var(--line);
  background: var(--chipHover);
}

.quick{
  margin-top: 22px;
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color: var(--muted);
}
.quick a{
  color:#1a73e8;
  text-decoration:none;
}
.quick a:hover{ text-decoration:underline; }

.footer{
  height:60px;
  border-top:1px solid var(--line);
  background:#f2f2f2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 0 22px;
  font-size:14px;
  color: var(--muted);
}
.footer .links{
  display:flex;
  gap:18px;
  flex-wrap:wrap;
}
.footer a{
  color: var(--muted);
  text-decoration:none;
  font-size:14px;
}
.footer a:hover{ text-decoration:underline; }

@media (max-width:520px){
  .topbar{ padding:0 14px; gap:12px; }
  .footer{ padding:0 14px; }
}