/* ---------------------------------------------------------
   GLOBAL TYPOGRAPHY & BASE
--------------------------------------------------------- */

html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

.site-title {
  color: #0066cc !important;
   text-decoration: none;
  font-weight: 600;
}

*, *:before, *:after {
  box-sizing: inherit;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 18px;
  line-height: 1.5; /* 1.6 */
  background: #ffffff;  /* light gray background #f7f7f7*/
  color: #333;
}

/* Make images never overflow */
img {
  max-width: 100%;
  height: auto;
}

/* Links */
a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---------------------------------------------------------
   HEADER
--------------------------------------------------------- */

.site-header {
  background: white;
  border-bottom: 4px solid #ddd;
  padding: 0.8rem 0;
  position: sticky;   /* makes it stick */
  top: 0;             /* stick to top */
  z-index: 1000;      /* stay above content */
  background: white;  /* ensure it doesn’t become transparent */
}
.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #0066cc;
  text-decoration: none;
}

.site-nav a {
  margin-left: 1.5rem;
  font-size: 1rem;
  color: #333;
}

.site-nav a:hover {
  text-decoration: underline;
}

/* ---------------------------------------------------------
   PAGE CONTENT
--------------------------------------------------------- */

.page-content {
  background: white;
  padding: 1rem 0;
}

.wrapper {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ---------------------------------------------------------
   HEADINGS
--------------------------------------------------------- */

h1, h2, h3, h4, h5 {
  font-weight: 600;
  color: #222;
  margin-top: 0rem;
  margin-bottom: 0rem;
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }

h4 + h4 {
  margin-top: 0.6rem;
}

h4 + p {
  margin-top: 0rem   /* tighten space */
}

/* ---------------------------------------------------------
   CODE BLOCKS & PRE
--------------------------------------------------------- */

code {
  background: #eee;
  padding: 3px 5px;
  border-radius: 4px;
  font-family: Menlo, Consolas, "Courier New", monospace;
}

pre {
  background: #eee;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
}

/* ---------------------------------------------------------
   FOOTER (if you decide to enable it)
--------------------------------------------------------- */

.site-footer {
  padding: 1rem 0;
  border-top: 4px solid #ddd;
  background: white;
  color: #777;
   font-size: 75%;
}

/* ---------------------------------------------------------
   RESPONSIVE
--------------------------------------------------------- */

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    gap: 0.5rem;
  }

  .site-nav a {
    margin-left: 0.8rem;
    font-size: 0.95rem;
  }
}