* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Outfit', sans-serif;
    }
 .contributor {
  margin-top: 2rem;
  text-align: center;
}

.img-box {
  width: 180px;
  height: 180px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  border: 3px solid #00e5ff;
  border-radius: 12px; /* square with rounded corners */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* fills the square */
}

.contributor h3 {
  margin-top: 0.8rem;
  font-size: 1.3rem;
  color: #00e5ff;
}

.contribution {
  font-size: 1rem;
  color: #e0e0e0;
  margin-top: 0.5rem;
}


    body {
      background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
      color: white;
    }

    header {
      padding: 1.5rem;
      background: rgba(255, 255, 255, 0.05);
      border-bottom: 2px solid #00e5ff;
    }

    .header-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
    }

    .logo-title {
      display: flex;
      align-items: center;
      gap: 15px;
      flex-wrap: wrap;
    }

    .logo-title img {
      height: 50px;
    }

    .logo-title h1 {
      font-size: 2.3rem;
      font-weight: 700;
      color: #00e5ff;
      text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    }

    nav {
      margin-top: 1rem;
    }

    nav button {
      background: transparent;
      border: 2px solid #00e5ff;
      color: #00e5ff;
      font-weight: bold;
      padding: 0.5rem 1.2rem;
      margin: 0 0.5rem;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.3s;
    }

    nav button:hover {
      background: #00e5ff;
      color: #0f2027;
    }

    main, .about-section {
      padding: 2rem;
      max-width: 1000px;
      margin: auto;
    }

    .intro {
      margin-bottom: 1.5rem;
      font-size: 1.15rem;
      color: #d0eaff;
    }

    .branch-heading {
      font-size: 1.7rem;
      font-weight: bold;
      margin-bottom: 1.2rem;
      color: #00e5ff;
    }

    .btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      justify-content: center;
      margin-bottom: 2rem;
    }

    .btn-group button {
      padding: 1rem 2rem;
      background: #00e5ff;
      color: #0f2027;
      font-weight: bold;
      font-size: 1.1rem;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      transition: background 0.2s;
    }

    .btn-group button:hover {
      background: #00bcd4;
    }

    .year-section {
      display: none;
    }

    .year-section.active {
      display: block;
      animation: fadeIn 0.5s ease-in-out;
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    .year-section h3 {
      color: #0ae6de;
      font-size: 1.8rem;
      margin-bottom: 1.2rem;
    }

    .subject-item {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      padding: 1rem;
      margin: 0.75rem 0;
      border-radius: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1.05rem;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
      transition: transform 0.2s ease, background 0.3s ease;
    }

    .subject-item:hover {
      transform: translateY(-2px);
      background: rgba(255, 255, 255, 0.15);
    }

    .subject-item a {
      color: #00e5ff;
      text-decoration: none;
      padding: 0.4rem 0.8rem;
      background: rgba(0, 229, 255, 0.2);
      border-radius: 6px;
      transition: background 0.2s;
    }

    .subject-item a:hover {
      background: rgba(0, 229, 255, 0.35);
    }

    .about-section {
      display: none;
    }

    .about-section.active {
      display: block;
    }

    .about-section h2 {
      font-size: 2rem;
      color: #00e5ff;
      margin-bottom: 1rem;
    }

    .about-section p {
      font-size: 1.1rem;
      color: #e0e0e0;
      margin-bottom: 1rem;
    }

    footer {
      text-align: center;
      padding: 1rem;
      font-size: 0.9rem;
      background-color: rgba(255, 255, 255, 0.05);
      color: #ccc;
    }

    .fixed-name {
      position: fixed;
      bottom: 10px;
      left: 15px;
      font-family: 'Pacifico', cursive;
      font-size: 1.3rem;
      color: #00e5ff;
      opacity: 0.9;
      z-index: 9999;
      pointer-events: none;
      user-select: none;
      text-shadow: 1px 1px 4px rgba(0,0,0,0.4);
    }

    @media (max-width: 768px) {
      .logo-title h1 {
        font-size: 1.6rem;
      }
      .btn-group {
        flex-direction: column;
        align-items: center;
      }
      .fixed-name {
        font-size: 1.1rem;
      }
    }