* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', Roboto, system-ui, sans-serif;
      scroll-behavior: smooth;
    }

    html,body {
      background: #f0f4fc;
      color: #0b1a2e;
    }

    /* ===== COLOR SCHEME: blue, white, black ===== */
    :root {
      --primary-blue: #0a3a6b;
      --secondary-blue: #1e5a8a;
      --light-blue: #e6eff9;
      --pure-white: #ffffff;
      --soft-white: #f8faff;
      --dark-black: #11171f;
      --gray-shadow: rgba(10, 30, 60, 0.08);
    }

    /* ----- NAVBAR ----- */
    .navbar {
      background: var(--pure-white);
      padding: 0.9rem 5%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 4px 20px var(--gray-shadow);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 2px solid var(--primary-blue);
    }

    .logo {
      font-weight: 700;
      font-size: 1.5rem;
      color: var(--primary-blue);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
    }
    #logo{
width: 7%;
border-radius: 60%;
    }
    .logo span {
      color: var(--dark-black);
      font-weight: 300;
    }

    .nav-links {
      display: flex;
      gap: 2.2rem;
      align-items: center;
    }
    .nav-links a {
      text-decoration: none;
      color: var(--dark-black);
      font-weight: 500;
      font-size: 1rem;
      transition: 0.2s;
      border-bottom: 2px solid transparent;
      padding-bottom: 4px;
    }
    .nav-links a:hover {
      color: var(--primary-blue);
      border-bottom-color: var(--primary-blue);
    }

    .hamburger {
      display: none;
      font-size: 1.8rem;
      color: var(--primary-blue);
      cursor: pointer;
    }

    /* ----- HERO / TYPING SECTION ----- */
    .hero {
      background: linear-gradient(145deg, var(--primary-blue) 0%, #0b2b4b 100%);
      padding: 5rem 5% 4.5rem;
      text-align: center;
      border-bottom: 6px solid var(--pure-white);
    }

    .hero-content h1 {
      font-size: 3.2rem;
      font-weight: 600;
      color: var(--pure-white);
      letter-spacing: 1px;
    }

    .typing-wrapper {
      display: inline-block;
      background: rgba(255, 255, 255, 0.08);
      padding: 0.5rem 2rem;
      border-radius: 60px;
      backdrop-filter: blur(2px);
      margin-top: 0.8rem;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    #typed-text {
      font-size: 2.2rem;
      font-weight: 300;
      color: #ffffff;
      background: transparent;
      border: none;
      outline: none;
      min-width: 260px;
      display: inline-block;
    }

    .typed-cursor {
      display: inline-block;
      width: 3px;
      height: 2.4rem;
      background: #aac9ff;
      margin-left: 6px;
      vertical-align: text-bottom;
      animation: blink 0.9s step-end infinite;
    }

    @keyframes blink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0; }
    }

    /* ----- SECTION COMMON ----- */
    section {
      padding: 4rem 5% 3.5rem;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 600;
      color: var(--primary-blue);
      border-left: 6px solid var(--dark-black);
      padding-left: 1.2rem;
      margin-bottom: 2.5rem;
      letter-spacing: -0.3px;
    }
    .section-title i {
      margin-right: 12px;
      color: var(--dark-black);
    }

    /* ----- ABOUT (section 2) ----- */
    .about-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 2.5rem;
      align-items: center;
      background: var(--pure-white);
      padding: 2.5rem 2.5rem;
      border-radius: 32px;
      box-shadow: 0 15px 40px var(--gray-shadow);
    }

    .about-text {
      flex: 1 1 300px;
    }
    .about-text h3 {
      font-size: 1.8rem;
      color: var(--dark-black);
      margin-bottom: 0.8rem;
    }
    .about-text h3 i {
      color: var(--primary-blue);
      margin-right: 8px;
    }
    .about-text p {
      font-size: 1.1rem;
      line-height: 1.7;
      color: #1f2b3a;
    }
    .about-image {
      flex: 1 1 260px;
      text-align: center;
    }
    .about-image img {
      max-width: 100%;
      height: auto;
      border-radius: 24px;
      box-shadow: 0 10px 25px rgba(0, 20, 50, 0.2);
      border: 3px solid white;
      transition: 0.3s ease;
    }
    .about-image img:hover {
      transform: scale(1.01);
    }

    /* ----- COURSE CARDS (common) ----- */
    .course-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 1.8rem;
    }

    .course-card {
      background: var(--pure-white);
      padding: 1.8rem 1rem;
      border-radius: 28px;
      text-align: center;
      box-shadow: 0 8px 24px var(--gray-shadow);
      transition: 0.25s ease;
      border: 1px solid rgba(10, 58, 107, 0.08);
      font-weight: 500;
      color: var(--dark-black);
    }
    a{
      text-decoration: none;
    }
    .course-card i {
      font-size: 2.2rem;
      color: var(--primary-blue);
      margin-bottom: 12px;
      display: block;
    }
    .course-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 30px rgba(10, 58, 107, 0.15);
      border-color: var(--primary-blue);
      background: var(--soft-white);
    }

    .course-card small {
      display: block;
      margin-top: 6px;
      font-weight: 300;
      color: #2a405a;
      font-size: 0.8rem;
    }

    /* section bg alternation */
    .bg-soft {
      background: var(--soft-white);
    }

    /* ----- CONTACT FORM (section 6) ----- */
    .contact-wrapper {
      background: var(--pure-white);
      padding: 2.5rem 2.8rem;
      border-radius: 40px;
      box-shadow: 0 20px 45px var(--gray-shadow);
      max-width: 700px;
      margin: 0 auto;
      border: 1px solid rgba(10, 58, 107, 0.1);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 1.6rem;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-weight: 600;
      color: var(--dark-black);
      font-size: 0.95rem;
      letter-spacing: 0.3px;
    }
    .form-group label i {
      color: var(--primary-blue);
      width: 22px;
    }
    .form-group input,
    .form-group select {
      padding: 0.9rem 1.2rem;
      border: 1.5px solid #dde7f0;
      border-radius: 50px;
      font-size: 1rem;
      background: var(--soft-white);
      transition: 0.2s;
    }
    .form-group input:focus,
    .form-group select:focus {
      outline: none;
      border-color: var(--primary-blue);
      box-shadow: 0 0 0 4px rgba(10, 58, 107, 0.12);
      background: white;
    }

    .btn-submit {
      background: var(--primary-blue);
      border: none;
      padding: 1rem 1.8rem;
      border-radius: 60px;
      font-weight: 700;
      font-size: 1.2rem;
      color: white;
      cursor: pointer;
      transition: 0.2s;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      margin-top: 8px;
      border: 2px solid var(--primary-blue);
    }
    .btn-submit:hover {
      background: var(--dark-black);
      border-color: var(--dark-black);
      transform: scale(1.01);
    }

    /* ----- FOOTER ----- */
    .footer {
      background: var(--dark-black);
      color: #cbd5e1;
      padding: 2.2rem 5%;
      text-align: center;
      border-top: 4px solid var(--primary-blue);
    }
    .footer span {
      color: var(--pure-white);
      font-weight: 500;
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 820px) {
      .navbar {
        padding: 0.7rem 5%;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        background: white;
        position: absolute;
        top: 60px;
        left: 0;
        /* right: -90px; */
        width: 100%;
        padding: 1.8rem 0;
        gap: 1.5rem;
        box-shadow: 0 20px 30px rgba(0,0,0,0.05);
        border-bottom: 3px solid var(--primary-blue);
      }
      .nav-links.open {
        display: flex;
      }
      .hamburger {
        display: block;
      }

      .hero-content h1 {
        font-size: 2.4rem;
      }
      #typed-text {
        font-size: 1.6rem;
        min-width: 180px;
      }
      .typed-cursor {
        height: 1.8rem;
      }

      .about-grid {
        padding: 1.8rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }

    @media (max-width: 480px) {
      .hero {
        padding: 3rem 5%;
      }
      .hero-content h1 {
        font-size: 1.8rem;
      }
      #typed-text {
        font-size: 1.3rem;
        min-width: 140px;
      }
      .course-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
      }
      .course-card {
        padding: 1.2rem 0.5rem;
        font-size: 0.9rem;
      }
      .contact-wrapper {
        padding: 1.8rem 1.2rem;
      }
      .about-text h3 {
        font-size: 1.4rem;
      }
    }

    /* extra micro-animations */
    .fade-in {
      animation: fadeUp 0.7s ease forwards;
      opacity: 0;
    }
    @keyframes fadeUp {
      0% { opacity: 0; transform: translateY(20px); }
      100% { opacity: 1; transform: translateY(0); }
    }
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }

    #loc{
        color: white;
        text-decoration: none;
        font-weight: bold;
    }