* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }


    body {
      font-family: 'Inter', sans-serif;
      background: #fbfdff;
      color: #1f2e3f;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1320px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    /* enhanced typography scale */
    h1, h2, h3, h4 {
      font-weight: 600;
      letter-spacing: -0.02em;
      line-height: 1.2;
    }

    /* premium color palette: deep teal, warm accents */
    :root {
      --primary: #0b5e7c;
      --primary-dark: #084c66;
      --primary-light: #e7f2f9;
      --accent: #e67e4a;  /* warm orange for highlights */
      --gray-600: #4b6d82;
      --gray-800: #1f3b4c;
    }

    .badge {
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.75rem;
      padding: 0.3rem 1.2rem;
      border-radius: 40px;
      font-weight: 600;
      letter-spacing: 0.02em;
      display: inline-block;
      text-transform: uppercase;
    }

    .btn-primary {
      background: var(--primary);
      border: none;
      color: white;
      font-weight: 600;
      padding: 0.9rem 2.4rem;
      border-radius: 60px;
      cursor: pointer;
      transition: all 0.2s;
      display: inline-block;
      text-decoration: none;
      font-size: 1rem;
      box-shadow: 0 8px 18px -8px rgba(11,94,124,0.4);
      border: 1px solid var(--primary);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 14px 24px -10px var(--primary);
    }

    .btn-outline {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      font-weight: 600;
      padding: 0.9rem 2.4rem;
      border-radius: 60px;
      transition: 0.2s;
      text-decoration: none;
      display: inline-block;
      font-size: 1rem;
    }
    .btn-outline:hover {
      background: var(--primary);
      color: white;
    }

    /* header */
    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1.2rem 0;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .logo {
      font-size: 2rem;
      font-weight: 700;
      color: #0b2d3a;
      letter-spacing: -0.02em;
    }
    .logo span {
      font-size: 0.8rem;
      color: #4c778b;
      font-weight: 500;
      display: block;
      letter-spacing: 0.4px;
    }
    .nav-links {
      display: flex;
      gap: 2.2rem;
      align-items: center;
    }
    .nav-links a {
      color: #2c5168;
      text-decoration: none;
      font-weight: 500;
      font-size: 1rem;
    }
    .talk-btn {
      background: var(--primary);
      color: white;
      border-radius: 40px;
      padding: 0.5rem 1.8rem;
      font-weight: 600;
      text-decoration: none;
      font-size: 0.95rem;
    }
    .hamburger {
      display: none;
      font-size: 2rem;
      cursor: pointer;
      color: #0b2d3a;
    }
    .mobile-menu {
      display: none;
      flex-direction: column;
      width: 100%;
      background: white;
      padding: 1.5rem 0;
      border-top: 1px solid #e3f0f5;
    }
    @media (max-width: 850px) {
      .nav-links { display: none; }
      .hamburger { display: inline-block; }
    }

    /* HERO with enhanced layout & image */
    .hero-enhanced {
      background: linear-gradient(130deg, #f4faff 0%, #ffffff 80%);
      border-radius: 48px;
      padding: 3rem 3rem;
      margin: 2rem 0 3rem;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 3rem;
      border: 1px solid #d0e6f2;
      box-shadow: 0 30px 40px -24px rgba(11,94,124,0.2);
    }
    .hero-content { flex: 2 1 360px; }
    .hero-content h1 {
      font-size: clamp(2.6rem, 7vw, 4rem);
      font-weight: 800;
      line-height: 1.1;
      color: #0b2d3a;
      margin-bottom: 1.2rem;
    }
    .hero-highlight {
      color: var(--primary);
      border-bottom: 4px solid #e67e4a;
      display: inline-block;
    }
    .hero-desc {
      font-size: 1.2rem;
      color: var(--gray-600);
      max-width: 600px;
      margin: 1.5rem 0 2.2rem;
      font-weight: 400;
    }
    .stat-group {
      display: flex;
      gap: 3rem;
      margin: 2.5rem 0 1rem;
      flex-wrap: wrap;
    }
    .stat-item h3 {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary);
    }
    .hero-image {
      flex: 1 1 260px;
      text-align: center;
    }
    .hero-image img {
      max-width: 100%;
      border-radius: 36px;
      box-shadow: 0 35px 40px -20px #86b6cc;
    }

    /* section titles enhanced */
    .section-title {
      font-size: 2.2rem;
      font-weight: 700;
      color: #133f52;
      margin-bottom: 0.5rem;
      letter-spacing: -0.02em;
    }
    .section-sub {
      color: var(--gray-600);
      font-size: 1.1rem;
      margin-bottom: 2rem;
      border-left: 4px solid #e67e4a;
      padding-left: 1.2rem;
    }

    /* course cards – refined */
    .course-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
      gap: 2rem;
      margin: 2rem 0 3rem;
    }
    .course-card {
      background: white;
      border-radius: 32px;
      padding: 2rem 1.8rem;
      border: 1px solid #e3edf6;
      transition: all 0.25s;
      box-shadow: 0 15px 30px -20px rgba(0,60,80,0.1);
      display: flex;
      flex-direction: column;
    }
    .course-card:hover {
      border-color: #aad0e6;
      box-shadow: 0 25px 35px -20px var(--primary);
      transform: translateY(-4px);
    }
    .card-badge {
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.7rem;
      padding: 0.2rem 1.2rem;
      border-radius: 30px;
      align-self: flex-start;
      font-weight: 700;
      letter-spacing: 0.3px;
      margin-bottom: 1rem;
    }
    .card-icon {
      font-size: 2.2rem;
      color: var(--primary);
      margin-bottom: 1rem;
    }
    .card-title {
      font-size: 1.6rem;
      font-weight: 700;
      color: #1a4053;
      margin-bottom: 0.3rem;
    }
    .card-meta {
      color: #6a8fa5;
      font-size: 0.9rem;
      margin-bottom: 0.8rem;
    }
    .feature-list {
      list-style: none;
      margin: 0.8rem 0 1.2rem;
      color: #2b5b78;
      font-size: 0.95rem;
    }
    .feature-list i {
      color: var(--primary);
      width: 1.4rem;
    }
    .card-price {
      font-size: 2rem;
      font-weight: 700;
      color: #0b3b4f;
      margin: 1rem 0 0.8rem;
    }
    .btn-enroll {
      background: #e1f0f7;
      border: none;
      padding: 0.8rem;
      border-radius: 40px;
      font-weight: 600;
      color: var(--primary);
      text-align: center;
      text-decoration: none;
      margin-top: 0.6rem;
      transition: 0.2s;
    }
    .btn-enroll:hover {
      background: var(--primary);
      color: white;
    }

    /* EV special card */
    .special-card {
      background: linear-gradient(125deg, #f5fafd, white);
      border-radius: 60px;
      padding: 2.8rem 3rem;
      border: 1px solid #c9e2f0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 2.5rem;
      margin: 3rem 0;
    }
    .special-content { flex: 2 1 320px; }
    .special-tag {
      background: var(--primary);
      color: white;
      padding: 0.2rem 1.4rem;
      border-radius: 40px;
      display: inline-block;
      font-size: 0.8rem;
      letter-spacing: 0.5px;
      margin-bottom: 1rem;
    }

    /* opportunity & location row */
    .opp-row {
      background: #f3faff;
      border-radius: 80px;
      padding: 2.8rem 3rem;
      margin: 3.5rem 0;
      display: flex;
      flex-wrap: wrap;
      gap: 3rem;
      border: 1px solid #c5e0ef;
    }
    .opp-item i { font-size: 2.4rem; color: var(--primary); }
    .opp-item h3 { font-size: 2rem; margin: 0.5rem 0; }

    /* lead form refinement */
    .lead-form {
      background: #ffffff;
      border-radius: 60px;
      padding: 3rem;
      border: 1px solid #d1e7f5;
      box-shadow: 0 20px 35px -24px #99c1d6;
      margin: 3rem 0;
    }
    .form-row {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      margin: 2rem 0 1rem;
    }
    .form-group { flex: 1 1 190px; }
    .form-group input, .form-group select {
      width: 100%;
      padding: 1rem 1.6rem;
      background: #f9feff;
      border: 1.5px solid #cee6f3;
      border-radius: 60px;
      font-size: 0.95rem;
      font-family: 'Inter', sans-serif;
    }

    /* footer enhanced */
    .footer-premium {
      background: #10242e;
      color: #d2e4f0;
      padding: 4rem 0 2rem;
      margin-top: 5rem;
      border-top: 6px solid var(--primary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
      gap: 2.5rem;
      margin-bottom: 3rem;
    }
    .footer-col a, .footer-col p {
      color: #b6d4ea;
      text-decoration: none;
      line-height: 2.2;
      font-size: 0.95rem;
    }
    .footer-col h4 { color: white; margin-bottom: 1.2rem; }
    .contact-mini {
      display: flex;
      flex-wrap: wrap;
      gap: 2rem;
      background: #1b3e50;
      border-radius: 60px;
      padding: 1rem 2.2rem;
      margin-bottom: 2.5rem;
      font-weight: 500;
    }
    .footer-copy {
      border-top: 1px solid #2b5e7a;
      padding-top: 2rem;
      text-align: center;
      color: #93bcd6;
    }