styles.css

/* Reset some default browser styles */
body,
h1,
button,
input,
textarea {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base styles */
body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
    user-select: none;
    -webkit-touch-callout: none;
}

@keyframes rgbBeam {
    0% {
        border-color: red;
    }
    8.33% {
        border-color: orange;
    }
    16.66% {
        border-color: yellow;
    }
    25% {
        border-color: green;
    }
    33.33% {
        border-color: cyan;
    }
    41.66% {
        border-color: blue;
    }
    50% {
        border-color: violet;
    }
    58.33% {
        border-color: magenta;
    }
    66.66% {
        border-color: pink;
    }
    75% {
        border-color: purple;
    }
    83.33% {
        border-color: indigo;
    }
    91.66% {
        border-color: lime;
    }
    100% {
        border-color: red;
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 20px 5px red;
    }
    8.33% {
        box-shadow: 0 0 20px 5px orange;
    }
    16.66% {
        box-shadow: 0 0 20px 5px yellow;
    }
    25% {
        box-shadow: 0 0 20px 5px green;
    }
    33.33% {
        box-shadow: 0 0 20px 5px cyan;
    }
    41.66% {
        box-shadow: 0 0 20px 5px blue;
    }
    50% {
        box-shadow: 0 0 20px 5px violet;
    }
    58.33% {
        box-shadow: 0 0 20px 5px magenta;
    }
    66.66% {
        box-shadow: 0 0 20px 5px pink;
    }
    75% {
        box-shadow: 0 0 20px 5px purple;
    }
    83.33% {
        box-shadow: 0 0 20px 5px indigo;
    }
    91.66% {
        box-shadow: 0 0 20px 5px lime;
    }
    100% {
        box-shadow: 0 0 20px 5px red;
    }
}

.container {
    text-align: center;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    max-width: 90%;
    margin: 0 auto;
    border: 5px solid red; /* Initial border color */
    animation: rgbBeam 5s infinite, glow 5s infinite;
}

.watermark {
    position: fixed;
    bottom: 10px;
    right: 10px;
    opacity: 0.5;
    font-size: 12px;
    pointer-events: none;
}

/* Author's name */
body::before {
    content: "Dibuat oleh Zufar Rizal";
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 14px;
    color: gray;
    opacity: 0.7;
    pointer-events: none;
}

/* Buttons */
button {
    padding: 10px 20px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    margin-top: 10px;
    font-weight: bold;
}

button:hover {
    opacity: 0.8;
}

.blue-button {
    background-color: #007bff;
    color: #fff;
}

.highlight-button {
    background-color: #ffcc00;
    color: #000;
}

.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

/* Textarea */
textarea {
    width: 100%;
    height: 200px;
    margin-top: 20px;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 5px;
    resize: none;
    box-sizing: border-box;
}

/* Responsive design */
@media (max-width: 600px) {
    body {
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 20px;
        padding-bottom: 20px;
    }

    .container {
        padding: 15px;
        margin-top: 20px;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 24px;
        margin-bottom: 10px;
    }

    textarea {
        height: 150px;
        font-size: 14px;
    }

    button {
        font-size: 12px;
        padding: 8px 15px;
    }
}

/* Tutorial text */
#tutorialText {
    display: none;
    margin-top: 20px;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 5px;
}

#tutorialText p {
    margin: 10px 0;
}

#tutorialText p strong {
    display: block;
    margin-bottom: 5px;
}