body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(120deg, #f0f4f8 0%, #c9e7fa 100%);
    color: #222;
}
header {
    background: #0077b6;
    color: #fff;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}
nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s;
}
nav a:hover {
    color: #90e0ef;
}
.hero {
    text-align: center;
    padding: 4rem 1rem 2rem 1rem;
    background: linear-gradient(120deg, #caf0f8 0%, #90e0ef 100%);
    animation: fadeIn 1.5s;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}
#cta-btn {
    margin-top: 2rem;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    background: #00b4d8;
    color: #fff;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transition: background 0.2s, transform 0.2s;
}
#cta-btn:hover {
    background: #0077b6;
    transform: scale(1.05);
}
.features-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    margin: 2rem 0;
}
.feature-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    padding: 2rem 1.5rem;
    min-width: 180px;
    text-align: center;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
    transform: translateY(-8px) scale(1.04);
    box-shadow: 0 8px 24px rgba(0,0,0,0.13);
}
footer {
    background: #0077b6;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    margin-top: 3rem;
}
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.4);
    justify-content: center;
    align-items: center;
}
.modal.show {
    display: flex;
}
.modal-content {
    background: #fff;
    padding: 2rem 1.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    min-width: 260px;
    text-align: center;
    position: relative;
    animation: modalFadeIn 0.3s;
}
@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}
.close-btn {
    position: absolute;
    top: 12px;
    right: 18px;
    font-size: 1.5rem;
    color: #0077b6;
    cursor: pointer;
    font-weight: bold;
}
.close-btn:hover {
    color: #d90429;
}
@media (max-width: 700px) {
    .features-list {
        flex-direction: column;
        gap: 1rem;
    }
    header {
        flex-direction: column;
        gap: 1rem;
    }
}