/* Login Styles */
.login-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #121212 0%, #000000 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 5000;
    padding: 20px;
}

.login-card {
    background-color: var(--bg-elevated);
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.login-card .logo {
    justify-content: center;
    margin-bottom: 30px;
    font-size: 2rem;
}

.login-card h1 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 0.9rem;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    padding: 12px 12px 12px 45px;
    background-color: var(--bg-highlight);
    border: 1px solid #333;
    border-radius: 4px;
    color: white;
    outline: none;
    transition: border-color 0.3s;
}

.input-group input:focus {
    border-color: var(--accent-color);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background-color: var(--accent-color);
    border: none;
    border-radius: 500px;
    color: black;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    margin-top: 10px;
}

.login-btn:hover {
    background-color: var(--accent-hover);
    transform: scale(1.02);
}

.login-footer {
    margin-top: 25px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.login-footer a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

/* User Profile Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#logout-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s;
}

#logout-btn:hover {
    color: #e91e63;
}

/* Responsive Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 90px;
    left: 0;
    width: 100%;
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    justify-content: space-around;
    padding: 10px 0;
    border-top: 1px solid #282828;
    z-index: 100;
}

.mobile-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
}

.mobile-nav a i {
    font-size: 1.2rem;
}

.mobile-nav a.active {
    color: var(--text-primary);
}

/* Mobile Media Queries */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .app-container {
        grid-template-columns: 1fr;
    }

    .mobile-nav {
        display: flex;
    }

    .main-content {
        padding-bottom: 160px;
        /* Space for mobile nav + player */
    }

    .hero h1 {
        font-size: 2rem;
    }

    .player-bar {
        padding: 0 10px;
    }

    .now-playing {
        width: 100%;
    }

    .player-controls {
        width: 100%;
        position: fixed;
        bottom: 0;
        left: 0;
        background: #181818;
        padding: 10px;
        z-index: 101;
    }

    .mobile-hide {
        display: none;
    }

    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 15px;
    }
}