/* ============================
   RESET & BASE STYLES (Mobile First)
   ============================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe Ui', Arial, sans-serif;
  line-height: 1.5;
  color: #333;
  background: #f7f5f2;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: #333;
}

a:hover {
  text-decoration: none;
  color: #95444E;
}

/* ============================
   HEADER
   ============================ */
header {
  background: #95444E;
  padding: 12px 16px;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.header-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  flex-grow: 1;
}

.brand strong {
  display: block;
  color: #fff;
  font-size: 22px;
}

.brand span {
  display: block;
  color: rgba(255,255,255,.85);
  font-size: 13px;
}

/* ============================
   HAMBURGER BUTTON — visible only on smartphones
   ============================ */
.hamburger-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.hamburger-btn span {
  display: block;
  height: 3px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Animate into an "X" when menu is open */
.hamburger-btn.active span:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}
.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
}
.hamburger-btn.active span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

/* ============================
   MAIN LAYOUT — Mobile: stacked, aside collapsible
   ============================ */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px;
}

.layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

aside {
  width: 100%;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);

  /* Collapsed by default on mobile */
  max-height: 0;
  padding: 0 16px;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.25s ease;
}

aside.nav-open {
  max-height: 2000px; /* large enough to fit full content */
  padding: 16px;
  opacity: 1;
}

.nav-placeholder-img {
  margin: 0 auto 10px auto;
  border-radius: 6px;
}

.nav-section {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eee;
}

.nav-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.nav-section ul {
  list-style: none;
 
  padding-left: 4px;
}

.nav-section li {
  padding: 4px 0;
  font-size: 14px;
}

}
.nav-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.nav-links a {
  font-size: 14px;
}

/* ============================
   CONTENT / MASONRY CARDS — Mobile: 1 column
   ============================ */
.content {
  width: 100%;
}

.aligned-header {
  margin-bottom: 16px;
  font-size: 20px;
}

.masonry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
  display: flex;
  flex-direction: column;
}

.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.card-title {
  font-weight: bold;
  padding: 10px 12px 0 12px;
  color: #95444E;
  font-size: 16px;
}

.card-body {
  padding: 8px 12px 14px 12px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-text {
  font-size: 13px;
  margin-bottom: 8px;
  flex-grow: 1;
}

.source {
  font-size: 13px;
  font-weight: 600;
  align-self: flex-start;
}

/* ============================
   FOOTER
   ============================ */
footer {
  text-align: center;
  padding: 16px;
  background: #eee;
  margin-top: 24px;
}

/* ============================
   TABLET: 600px – 899px
   Sidebar visible, 2 columns of cards
   ============================ */
@media (min-width: 600px) {
  .hamburger-btn {
    display: none;
  }

  .layout {
    flex-direction: row;
    align-items: flex-start;
  }

  aside {
    flex: 0 0 220px;
    max-height: none;
    padding: 16px;
    opacity: 1;
    overflow: visible;
    position: sticky;
    top: 16px;
  }

  .content {
    flex: 1;
  }

  .masonry {
    grid-template-columns: repeat(2, 1fr);
  }

  main {
    padding: 20px;
  }
}

/* ============================
   LAPTOP: 900px – 1199px
   3 columns of cards
   ============================ */
@media (min-width: 900px) {
  aside {
    flex: 0 0 260px;
  }

  .masonry {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .aligned-header {
    font-size: 24px;
  }

/* ============================
   DESKTOP: 1200px and up
   4 columns of cards
   ============================ */
@media (min-width: 1200px) {
  aside {
    flex: 0 0 300px;
  }

  .masonry {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  main {
    padding: 32px 20px;
  }

  .aligned-header {
    font-size: 28px;
  }

  .card-text {
    font-size: 15px;
  }