* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    background: #0d0e12;
    color: #e2e8f0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 20px 110px;
}

a {
    color: #8b5cf6;
    text-decoration: none;
}

a:hover {
    color: #a78bfa;
}

button, a, .nav-item {
    -webkit-tap-highlight-color: transparent;
}

button:focus,
button:active,
a:focus,
a:active {
    outline: none;
    box-shadow: none;
}

.main-card {
    background: #16181d;
    border: 1px solid #242933;
    border-radius: 16px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    margin-bottom: 20px;
}

.main-card h1 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #fff;
}

.main-card p {
    font-size: 0.95rem;
    line-height: 1.75;
    color: #a3b1c6;
    margin: 0 0 14px;
    letter-spacing: 0.2px;
}

.music-widget {
    background: #16181d;
    border: 1px solid #242933;
    border-radius: 12px;
    padding: 12px;
    max-width: 500px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.music-widget img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
}

ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

li {
    background: rgba(22, 24, 29, 0.85);
    border: 1px solid #242933;
    padding: 12px 14px;
    border-radius: 10px;
    color: #cbd5e1;
    transition: 0.2s ease;
    position: relative;
    overflow: hidden;
}

.navbar-container {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(22, 24, 29, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 6px;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.navbar {
    display: flex;
    gap: 6px;
}

.nav-item {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #94a3b8;
    position: relative;
    text-decoration: none;
}

.nav-item i {
    width: 20px;
    height: 20px;
}

.nav-item:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    color: #fff;
    background: #242933;
}

.nav-item::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 55px;
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    background: #16181d;
    border: 1px solid #242933;
    padding: 4px 10px;
    font-size: 0.75rem;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    white-space: nowrap;
}

.nav-item:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

@media (max-width: 600px) {
    .navbar-container {
        bottom: 20px;
        width: 85%;
        max-width: 320px;
    }

    .navbar {
        justify-content: space-around;
        width: 100%;
    }

    .nav-item::after {
        display: none;
    }
}