body {
    margin: 0;
    padding: 0;
    font-family: 'Helvetica Neue', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.title {
    font-size: 72px;
    font-weight: 200;
    margin: 0;
}

@keyframes bounceRotateShadow {
    0% {
        transform: translateY(0) rotate(0deg);
        text-shadow: 0 0 0 rgba(0,0,0,0);
    }
    25% {
        transform: translateY(-12px) rotate(-5deg);
        text-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }
    50% {
        transform: translateY(0) rotate(0deg);
        text-shadow: 0 0 0 rgba(0,0,0,0);
    }
    75% {
        transform: translateY(-12px) rotate(5deg);
        text-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }
    100% {
        transform: translateY(0) rotate(0deg);
        text-shadow: 0 0 0 rgba(0,0,0,0);
    }
}

.emoji {
    font-size: 110px;
    margin-top: 20px;
    animation: bounceRotateShadow 2s ease-in-out infinite;
}

footer {
    text-align: center;
    font-size: 12px;
    padding: 10px 0;
    color: #777;
    margin-top: auto;
}

/* Sidebar base styles */
.sidebar {
    width: 240px;
    height: 100vh;
    background-color: #1e1e2f;
    color: #ffffff;
    position: fixed;
    top: 0;
    left: 0;
    padding-top: 60px;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 10px rgba(0,0,0,0.3);
}

/* Sidebar title or logo */
.sidebar .brand {
    font-size: 22px;
    font-weight: bold;
    text-align: center;
    padding: 20px 0;
    color: #ffffff;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Sidebar menu items */
.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar ul li {
    margin: 5px 0;
}

.sidebar ul li a {
    display: block;
    color: #ffffff;
    text-decoration: none;
    padding: 15px 20px;
    transition: background 0.3s ease;
    font-weight: 500;
}

.sidebar ul li a:hover {
    background-color: #343454;
    border-left: 4px solid #4fc3f7;
    padding-left: 16px;
}

.sidebar ul li a.active {
    background-color: #2a2a45;
    border-left: 4px solid #ff4081;
    padding-left: 16px;
}

/* Content wrapper next to sidebar */
.main-content {
    margin-left: 240px;
    padding: 30px;
    background-color: #f4f4f9;
    min-height: 100vh;
}