/* Base styling */
body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Kanit', sans-serif;
    overflow: hidden;
    user-select: none;
}

.background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.circle-1,
.circle-2 {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.7;
    mix-blend-mode: multiply;
}

.circle-1 {
    width: 650px;
    height: 650px;
    background-color: rgba(255, 60, 157, 0.6);
    left: 10%;
}

.circle-2 {
    width: 650px;
    height: 650px;
    background-color: rgba(74, 237, 255, 0.8);
    left: 40%;
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100%;
    text-align: center;
    color: #003162;
    padding: 20px;
    z-index: 3;
    position: relative;
}

.title {
    font-size: 4rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: #003162;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}

.tagline {
    font-weight: 300;
    color: #003162;
    margin-top: 5px;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.contact-btn {
    margin-top: 16px;
    padding: 7px 20px;
    font-size: 1rem;
    color: white;
    background-color: rgba(0, 29, 98, 0.8);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
}

.contact-btn:hover {
    background-color: rgba(0, 0, 0, 0.9);
    transition: box-shadow 0.1s ease-in-out;
    box-shadow: 0px 0px 30px 0 rgba(0, 0, 0, 0.3);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .title {
        font-size: 3rem;
    }

    .tagline {
        font-size: 1.2rem;
    }

    .contact-btn {
        font-size: 0.9rem;
        padding: 6px 15px;
    }
}

@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .contact-btn {
        font-size: 0.8rem;
        padding: 5px 10px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

    .contact-btn {
        font-size: 0.7rem;
        padding: 4px 8px;
        bottom: 10px;
        right: 10px;
    }
}