* {
  box-sizing: border-box;
}
html, body {
  overflow-x: hidden;
  max-width: 100vw;
  max-height: 100%;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: #1e1e1e;
  color: #e0e0e0;
  display: flex;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

.layout {
  flex: 1;
  margin: 3rem 0 0;
  padding: 0;
  overflow-x: hidden;
  max-width: 1600px;
  max-height: 100%;
}

.page-wrapper {
  flex: 1;
  overflow: hidden;
  margin-left: 200px;
  padding: 0;
  transition: margin-left 0.3s ease;
}
.page-wrapper.collapsed {
  margin-left: 0;
}

main {
  flex: 1;
  padding: 1rem;
}


.sidebar {
  position: fixed;
  width: 200px;
  background-color: #1e1e1e;
  padding: 4rem 0.25rem;
  height: 100vh;
  top: 0;
  overflow-y: auto;
  overflow-x: hidden;
  border-right: 1px solid #333;
  /*transition: width 0.3s ease;*/
}
.sidebar.collapsed {
  width: 0;
  padding: 0;
  overflow: hidden;
  border: none;
}
.sidebar nav ul {
  list-style: none;
  padding-left: 0;
}
.sidebar nav > ul > li {
  margin-top: 0.5rem;
  margin-bottom: 0.25rem;
}
.sidebar a {
  color: #ccc;
  text-decoration: none;
  display: block;
  padding: 0.25rem 0;
}
.sidebar a:hover {
  color: #fff;
}
.sidebar ul ul {
  padding-left: 0.5rem;
  margin-top: 0.25rem;
}

.toggle-button {
  position: fixed;
  top: 0.5rem;
  left: 0.75rem;
  z-index: 1000;
  background: #333;
  color: #eee;
  border: none;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 1.2rem;
}

h1 {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  text-align: center;
  margin: 0;
  color: #ffffff;
  text-shadow:
    -1px -1px 0 #000,
    -1px  0px 0 #000,
    -1px  1px 0 #000,
     0px -1px 0 #000,
     0px  1px 0 #000,
     1px -1px 0 #000,
     1px  0px 0 #000,
     1px  1px 0 #000;
}

section {
  margin-bottom: 3rem;
}
section h2 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  color: #ffffff;
  border-bottom: 2px solid #444;
  padding-bottom: 0.5rem;
}
.entry {
  display: flex;
  align-items: flex-start;
  background-color: #2a2a2a;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  margin-bottom: 1.5rem;
  padding: 1rem;
}
.thumbnail-link {
  margin-right: 1rem;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.thumbnail {
  width: 300px;
  height: 169px;
  object-fit: cover;
  display: block;
  border: none;
}
.card-content-col-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.card-content-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.card-content-row {
  flex: 1;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.0rem;
  /*text-align: center;*/
}
.card-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}
.links {
  font-size: 1rem;
  padding: 0;
  padding-top: 1rem;
  margin: 0 1rem 0;
}
.links li {
  margin-bottom: 0.5rem;
}
.links a {
  color: #66d9ef;
  text-decoration: none;
  word-break: break-all;
}
.links a:hover {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .entry {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .thumbnail-link {
    margin: 0 0 1rem;
  }
}

@media (max-width: 800px) {
  .page-wrapper {
    overflow: auto;
    margin-left: 0;
    padding: 0;
  }
  .sidebar {
    position: fixed;
    height: 100%;
    z-index: 999;
    left: 0;
    top: 0;
    overflow: auto;
  }
  .sidebar.collapsed {
    transform: translateX(-100%);
    width: 200px;
    padding: 1rem;
    overflow: hidden;
  }
  .layout {
    flex-direction: column;
  }
}

@media (max-width: 500px) {
  h1 {
    font-size: calc(2.5rem * 0.75);
  }
  section h2 {
    font-size: calc(1.75rem * 0.75);
  }
  .card-title {
    font-size: calc(1.5rem * 0.75);
  }
  .card-subtitle {
    font-size: calc(1.25rem * 0.75);
  }
  .links {
    font-size: calc(1rem * 0.75);
  }
}