/* =========================================
   BASIC RESETS
   ========================================= */
   * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    color: #333;
    line-height: 1.5;
  }
  
  /* =========================================
     HEADER / NAVBAR
     ========================================= */
  .material_header {
    background-color: #ffffff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  .material_navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem;
    position: relative;
  }
  
  /* Logo section now holds 4 items: NSF, award text, MTU, WMU */
  .material_logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;              /* space between logos/text */
  }

  /* NSF logo stays big */
  .material_nsf-logo {
    height: 70px;
    width: auto;
  }

  /* award text styling (unchanged) */
  .material_award-text {
    font-size: 1rem;
  }
  
  /* =========================================
     HAMBURGER MENU (MOBILE)
     ========================================= */
  .material_menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
  }
  
  .material_hamburger-bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    border-radius: 2px;
    transition: background-color 0.3s;
  }
  
  /* =========================================
     NAVIGATION MENU
     ========================================= */
  .material_nav {
    margin-right: 2rem;
  }
  
  .material_nav-list {
    display: flex;
    list-style: none;
    gap: 1rem;
    transition: max-height 0.3s ease;
  }
  
  .material_nav-list li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.2s ease-in-out;
  }
  
  .material_nav-list li a:hover {
    color: #f57c00;
  }
  
  .material_nav-list li a.active {
    color: #f57c00;
    font-weight: bold;
  }
  /* =========================================
   FOOTER
   ========================================= */
.material_footer {
    background-color: #f8f8f8;
    padding: 1rem 2rem;
    margin-top: 2rem;
  }
  
  .material_footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between; /* left, center, right items spread out */
    /* Optional: you can add horizontal padding here if needed */
  }
  
  /* FOOTER
   ========================================= */
   .material_footer {
    background-color: #f8f8f8;
    padding: 1rem 2rem;
    margin-top: 2rem;
  }
  
  .material_footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    /* center the single contact block now that it's the only item */
    justify-content: center;
  }
  
  /* CONTACT BLOCK */
  .footer-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .material_connect-icon {
    width: 50px;
    height: 50px;
  }
  
  .material_contact-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  
  .material_contact-title {
    font-size: 1rem;
  }
  
  .material_contact-email {
    color: #f57c00;
    font-weight: bold;
    font-size: 1rem;
  }
  


  /* Partner logos—smaller than NSF logo */
  .material_partner-logo {
    height: 40px;      
    width: auto;
  }

  .material_contact-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  /* Main Content Wrapper */
  .material_main-content {
    max-width: 1200px;       /* matches your header/footer container width */
    margin: 2rem auto;       /* center horizontally and add vertical space */
    padding: 0 2rem;
    
  }
  
    /* container to space it nicely */
  .download-section {
    text-align: center;
    margin: 2rem 0;
  }

  /* the button itself */
  .download-button {
    display: inline-block;
    background-color: #FFA500;    /* orange */
    color: #000;                   /* black text */
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;         /* adjust for roundness */
    text-decoration: none;
    font-weight: bold;
    font-size: 1rem;
    transition: background-color 0.2s ease;
  }

  .download-button:hover {
    background-color: #e59400;     /* slightly darker on hover */
  }
  /* Intro Section Styles (existing) */
  .material_intro-section {
    text-align: center;      
    margin-bottom: 2rem;     
  }
  .material_intro-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
  }
  .material_highlight {
    color: #f57c00;
  }
  .material_intro-paragraph {
    font-size: 1rem;
    line-height: 1.6;
    color: #555;
    text-align: justify;
  }
  
  /* Container for the entire "Week 1 – Introduction to BIM" section */
.bim-intro-section {
  padding: 2rem;
  background-color: #fefefe; /* Adjust background color as needed */
  font-family: Arial, sans-serif; /* Use your preferred font */
}

/* Flex container to display text on one side and image on the other */
.bim-intro-container {
  display: flex;
  flex-wrap: wrap;          /* Allows wrapping on smaller screens */
  justify-content: space-between;
  align-items: center;      /* <-- This change centers items vertically */
  gap: 2rem;                /* Spacing between text and image columns */
}

/* Left column: text area */
.bim-intro-text {
  flex: 1 1 300px;          /* Grow to fill space, minimum width ~300px */
  max-width: 600px;         /* Set a max width if desired */
  border: #333 4px solid;   /* Optional: border around the section */
  padding: 1.5rem;          /* Padding inside the text area */
  border-radius: 10px;
}

/* Header row with "Week 1," icon, and heading */
.bim-intro-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.week-label {
  font-size: 1.5rem;
  font-weight: bold;
  color: #f57c00  ;
}

.bim-icon {
  width: 52px;   /* Adjust size of the icon */
  height: 52px;
}

/* Title styling */
.bim-intro-title {
  margin: 0;
  font-size: 1.5rem;
  color: #333;
}

/* Topics list styling */
.bim-intro-topics {
  list-style-type: disc;  /* or none if you prefer custom bullets */
  padding-left: 1.5rem;   /* Indent list items */
  margin: 0;
}

.bim-intro-topics li {
  margin-bottom: 0.5rem;
  color: #000;
}

/* Right column: main image */
.bim-intro-image {
  
  width: 300px;        /* Adjust as necessary */
  display: flex;
  justify-content: center;
  align-items: center;      /* Centers the image inside its own box */
}

.bim-intro-image img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}


/* ================================
   MOBILE LAYOUT OVERRIDES
   ================================ */
   @media (max-width: 768px) {
    /* Header: one row, shrink logos, show hamburger */
    .material_navbar-container {
      flex-wrap: nowrap;
    }
    .material_logo-section {
      flex: 1 1 0;
      min-width: 0;
      gap: 0.5rem;
    }
    .material_header {
      padding: 0.8rem 0.8rem;        /* was 0.5rem, now 1rem top/bottom */
    }
  
    .material_nsf-logo {
      height: 80px;
    }
    .material_award-text {
      font-size: 0.9rem;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .material_partner-logo {
      display: none;
    }
    .material_menu-toggle {
      display: flex;
      margin-left: auto;
    }
  
    /* Nav: hide by default, show on toggle */
    .material_nav-list {
      display: none;
      position: absolute;
      top: 60px;
      right: 1rem;
      width: 200px;
      background-color: #fff;
      box-shadow: 0 2px 5px rgba(0,0,0,0.2);
      border-radius: 4px;
      padding: 0;
      z-index: 999;
      flex-direction: column;
    }
    .material_nav-list.material_show-nav {
      display: flex;
    }
    .material_nav-list li {
      border-bottom: 1px solid #eee;
    }
    .material_nav-list li:last-child {
      border-bottom: none;
    }
    .material_nav-list li a {
      display: block;
      padding: 0.75rem 1rem;
    }
  
    /* Main wrapper & intro text scaling */
    .material_main-content {
      padding: 0 1rem;
    }
    .material_intro-title {
      font-size: 1.5rem !important;
    }
    .material_highlight {
      font-size: 1.5rem !important;
    }
    .material_intro-paragraph {
      font-size: 0.9rem !important;
      line-height: 1.4;
    }
  
    /* BIM sections: stack image → text */
    .bim-intro-container {
      display: flex !important;
      flex-direction: column !important;
      gap: 1rem;
    }
    .bim-intro-image {
      order: 0 !important;
      width: 70% !important;
      margin-bottom: 0.75rem;
    }
    .bim-intro-text {
      order: 1 !important;
      width: 100% !important;
    }
    .week-label {
      font-size: 1.2rem !important;
    }
    .bim-intro-title {
      font-size: 1.25rem !important;
    }
  
    /* Footer: center */
    .material_footer-container {
      flex-direction: column;
      row-gap: 1rem;
    }
  }