body {
  margin: 0;
  background: black url('bg-tech-assetia.svg') center center/cover no-repeat fixed;
  color: white;
  font-family: Helvetica, 'Helvetica Neue', Arial, sans-serif;
  min-height: 100vh;
}

.sidebar-social {
  display: flex;
  gap: 5px;
  margin-bottom: 20px; /* space above copyright */
  justify-content: center;
}

.sidebar-social a svg rect {
  fill: white;
  transition: fill 0.3s ease;
}

.sidebar-social a svg path {
  fill: white;
  transition: fill 0.3s ease;
}

.sidebar-social a {
  width: 24px;
  height: 24px;
  color: white; /* icon fill via currentColor */
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.sidebar-social a:hover svg rect {
  fill: orange;
}

.sidebar-social a:hover svg path {
  fill: orange;
}

.sidebar-copyright {
  font-size: 9px;
  color: white;
  text-align: center;
  margin-left: -20px;
  margin-top: auto;
  padding: 10px 0 15px 0;
}
.mobile-copyright {
  font-size: 6px;
  color: grey;
  text-align: right;
  padding: 10px 15px 0 0;
}


.chart-container {
  border: 1px solid #444;
  border-radius: 8px;
  padding: 16px;
  margin: 20px 0;
  background: #181818;
  overflow: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95em;
}

.comparison-table th,
.comparison-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid #333;
}

.comparison-table th {
  background: #282828;
  font-weight: bold;
  color: white;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}


.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 220px;
  height: 100vh;
  background: black;
  display: flex;
  border-right: 1px solid #292929; /* 1px, solid */
  flex-direction: column;
  align-items: center;
  box-shadow: 1px 0 8px rgba(0,0,0,0.2);
  z-index: 100;
}



.menu-logo {
  margin: 30px 15px 40px 0;
  width: 120px;
  height: auto;
}

/* Sidebar navigation list */
.sidebar nav ul {
  list-style: none;
  padding: 0;
  width: 100%;
}

/* List items */
.sidebar nav ul li {
  width: 100%;
  text-align: left;
  margin-bottom: 18px;
}

/* Sidebar links */
.sidebar nav ul li a {
  color: white;
  font-size: 15px;
  font-weight: 500;
  display: block;
  padding: 14px 0;
  text-decoration: none;
  border-radius: 6px;
  transition: color 0.2s;
}

/* Active tab styled with only orange text */
.sidebar nav ul li.active a {
  background: transparent;
  color: #fe7600;
}

/* On hover, transient orange text */
.sidebar nav ul li a:hover {
  background: transparent;
  color: #fe7600;
}

/* Main content container */
.page-content {
  margin-left: 240px;
  padding: 40px 28px;
  background: transparent;
  border-radius: 18px;
  min-height: 100vh;
  transition: background 0.3s;
}

/* Mobile menu header hidden by default */
.mobile-header {
  display: none;
}

/* Dropdown menu hidden on desktop */
.mobile-dropdown {
  display: none;
}

/* Mobile styles */
@media (max-width: 900px) {
  /* Hide sidebar on mobile */
  .sidebar {
    display: none;
  }

  /* Mobile header bar */
  .mobile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #242121;
    border-bottom: 1px solid #292929; /* 1px, solid */
    padding: 15px 15px; /* 15px padding top, right, bottom, left */
    position: relative;
    z-index: 101;
  }

  /* Logo on mobile: 90px width */
  .menu-logo {
    margin: 0 5px 0 5px;
    width: 100px;
  }

  /* Burger menu button */
  .burger-menu {
    background: none;
    border: none;
    color: white;
    margin: 0 0 0 5px;
    font-size: 25px; /* larger icon size */
    width: 10vw; /* 10% viewport width */
    text-align: right;
    cursor: pointer;
  }

  /* Dropdown menu */
  .mobile-dropdown {
    position: absolute;
    right: 0;
    top: 68px;
    background: #181818f0; /* solid black with transparency */
    width: 60vw; /* 60% viewport width */
    border-bottom-left-radius: 10px;
    padding-right: 0px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.9);
    display: none;
    z-index: 102;
    text-align: right; /* menu items aligned right */
  }

  /* Mobile dropdown list */
  .mobile-dropdown ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  /* Mobile dropdown links */
  .mobile-dropdown ul li a {
    display: block;
    padding: 16px 28px;
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    border-bottom: 0px solid grey; /* separator line grey 1px */
  }

  /* Active and hover for mobile menu links */
  .mobile-dropdown ul li.active a,
  .mobile-dropdown ul li a:hover {
    background: #fe7600;
    color: #181818;
  }

  /* Content container adjustments on mobile */
  .page-content {
    margin-left: 0;
    padding: 15px; /* 15px padding all sides */
    border-radius: 0;
    background: transparent;
  }

  /* Smaller h1 font on mobile */
  h1 {
    font-size: 30px;
  }
}