/* reset some default browser styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* main page styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    position: relative;
    overflow: hidden;
}

/* particles container */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

/* center everything */
.container {
    text-align: center;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* make the title look nice and fade in */
.title {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

/* vibe container styling */
.vibe-container {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

/* make the vibe text big and bold */
.vibe {
    font-size: 2.5rem;
    font-weight: bold;
    color: white;
    display: inline-block;
    transition: all 0.3s ease;
}

/* check button styling */
.check-button {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    color: white;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.check-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.2);
}

.check-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* gradient animation */
@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* fade in animation for the title */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* vibe change animation */
@keyframes vibeChange {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.vibe.changed {
    animation: vibeChange 0.5s ease;
}