:root{
  --max: 1200px;
  --text: #111;
  --muted: #555;
  --line: #e9e9e9;
  --link: #0b57d0;
}

*{ box-sizing: border-box; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background:#fff;
  line-height:1.6;
}

/* Mobile-first layout */
.wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.side{
  position: static;
  padding-right: 0;
  height: auto;
  overflow: visible;
  text-align: center;           /* mobile: center sidebar */
}

.photo{
  width: 100%;
  max-width: 220px;             /* mobile size */
  border-radius: 16px;
  display: block;
  margin: 0 auto 14px;          /* mobile: center image */
  object-fit: cover;
}

.contact{ margin: 0 0 18px; }
.contact a{ color: var(--link); text-decoration: none; }
.contact a:hover{ text-decoration: underline; }

.nav{
  display:flex;
  flex-direction: row;          /* mobile: row */
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.nav a{
  color: var(--text);
  text-decoration: none;
}
.nav a:hover{ color: var(--link); }

.main section{ margin-bottom: 26px; }
h1{ font-size: 28px; margin: 0 0 6px; }
.role{ margin: 0 0 14px; color: var(--muted); }

h2{
  font-size: 18px;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.card{
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 14px;
  margin-top: 12px;
}
.card h3{ margin: 0 0 6px; font-size: 16px; }
.muted{ color: var(--muted); }

.card a{ color: var(--link); text-decoration: none; }
.card a:hover{ text-decoration: underline; }

.img-grid{
  display: grid;
  grid-template-columns: 1fr;   /* mobile: 1 column */
  gap: 12px;
}
.img-grid img{
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
}

.updates{ padding-left: 18px; }
.date{
  display:inline-block;
  width: 80px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.footer{
  margin-top: 30px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

/* Desktop */
@media (min-width: 901px){
  .wrap{
    grid-template-columns: 360px 1fr;
    gap: 36px;
  }

  .side{
    position: sticky;
    top: 18px;
    align-self: start;
    height: calc(100vh - 36px);
    overflow: auto;
    padding-right: 18px;
    text-align: left;          /* desktop: normal */
  }

  .photo{
    max-width: 260px;
    margin: 0 0 14px;          /* desktop: align left */
  }

  .nav{
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 10px;
    justify-content: flex-start;
  }

  .img-grid{
    grid-template-columns: repeat(3, 1fr);
  }
}