* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: #f0f2f5;
    color: #333;
}

header {
    color: white;
    text-align: center;
    margin-bottom: 2rem;
}

.hero {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    padding: 2rem;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #25D366;
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    margin-top: 20px;
    transition: background 0.3s ease;
}

.whatsapp-btn:hover {
    background: #128C7E;
}

.whatsapp-btn img {
    width: 24px;
    height: 24px;
}

.tagline {
    margin-top: 0.5rem;
    font-size: 1.2rem;
    opacity: 0.9;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card h2 {
    padding: 1rem;
    color: #1a237e;
    text-align: center;
}

.card ul {
    list-style: none;
    padding: 0 1.5rem 1rem;
}

.card li {
    margin: 0.5rem 0;
    padding-left: 1rem;
    position: relative;
}

.card li:before {
    content: "•";
    color: #1a237e;
    position: absolute;
    left: 0;
}

.enroll-btn {
    display: block;
    width: 80%;
    margin: 1rem auto;
    padding: 0.8rem;
    background: #1a237e;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.enroll-btn:hover {
    background: #283593;
}

footer {
    text-align: center;
    padding: 2rem;
    background: #1a237e;
    color: white;
    margin-top: 2rem;
}

footer a {
    color: white;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .cards-container {
        grid-template-columns: 1fr;
        padding: 1rem;
    }
}

.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.popup-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    min-width: 300px;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: #666;
}

.contact-btn, .close-now-btn {
    margin: 10px;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.contact-btn {
    background-color: #1a237e;
    color: white;
}

.close-now-btn {
    background-color: #f0f2f5;
    color: #333;
}

.responsive-image {
    width: 70vw;
    height: auto;
  }

  @media (min-width: 768px) {
    .responsive-image {
      width: auto;
      height: 30vh;
    }
  }