* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;

}

body {
    font-family:system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 
    Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: black;
    color: #e7e7e7;
    min-height: 100;
    line-height: 1.5;

}
.image-gradient {
    position: absolute;
    top: 0;
    right: 0;
    opacity: 0.5;
    z-index: -1;
}

.layer-blur {
    height: 0;
    width: 30rem;
    position: absolute;
    top: 20%;
    box-shadow: 0 0 700px 15px white;
    rotate: -30deg;
    z-index: -1;

}
.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    overflow: hidden;

}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5rem;
    z-index: 999;

}
header h1 {
    margin: 0;
    font-size: 3rem;
    font-weight: 300;

}
nav {
    display: flex;
    align-items: center;
    gap: 3rem;
    margin-left: -5%;
   
}
nav a{
    font-size: 1rem;
    letter-spacing: 0.1rem;
    transition: color 0.2s ease;
    text-decoration: none;
    color: inherit;

}
nav a:hover {
    color: #a7a7a7;

}
.btn-signing {
    background-color: #a7a7a7;
    color: black;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.2s ease;
    cursor: pointer;
}
.btn-signing:hover{
    background-color: white;

}

main{
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 100px;
    min-height: calc(90vh - 6rem);
    position: relative;

}

.conent{
    max-width: 40rem;
    margin-left: 10%;
    z-index: 999;

}

.tag-box{
    position: relative;
    width: 18rem;
    height: 2.5rem;
    border-radius: 50px;
    background: linear-gradient(to right, #656565, #7f42a7, #6600c5,
    #5300a0, #757575, #656565);
    background-size: 200%;
    animation: animationGradient 2.5s linear infinite;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);

}
@keyframes animationGradient {
    to{
        background-position: 200%;

    }
}
.tag-box .tag {
    position: absolute;
    inset: 3px 3px 3px 3px;
    background-color: black;
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.5s ease;
    cursor: pointer;

}

.tag-box .tag:hover{
    color: #5300a0;

}

.content h1{
    font-size: 4rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin: 2rem;
    line-height: 1.2;
    text-shadow: 0 0 10px rgb(128, 128, 128, 0.418);

}

.description {
    font-size: 1.2rem;
    letter-spacing: 0.05em;
    max-width: 53rem;
    color: gray;

}

.buttons {
    display: flex;
    gap: 1rem;
    margin-top: 3rem;
}

.btn-get-started {
    text-decoration: none;
    border: 1px solid #2a2a2a;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    transition: background-color 0.2s ease;
}

.btn-get-started:hover {
    background-color: #1a1a1a;

}

.btn-signing-main{
    text-decoration: none;
    background-color: lightgray;
    color: black;
    padding: 0.6rem 2.5rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.1rem;
    transition: background-color 0.2s ease;

}

.btn-signing-main:hover {
    background-color: gray
}
.Headphone-3d {
    position: absolute;
    top: 0;
    right: -23%;
    size: 100px;
    scale: 0.7;
    top: -11%;
}
.features-section{
    padding: 5rem 2rem;
    margin-top: 5rem;
    background-color: transparent;
    position: relative;
    z-index: 10;
}
.section-header {
    text-align: center;
    margin-bottom: 4rem;

}
.section-header h2{
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;

}
.section-header p {
    color: #a7a7a7;
    font-size: 1.1rem;

}
.features-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 11;
}
.feature-card {
    background-color: #0f0f0f;
    border: 1px solid #222;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;

}
.feature-card:hover {
    transform: translateY(-10px);
    border-color: #5300a0;

}
.icon-wrapper {
    background-color: #1a1a1a;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    color: #e7e7e7;
    transition: color 0.3s ease;
}
.feature-card:hover .icon-wrapper{
    color: #bfa1ff;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;

}
.feature-card p {
    color: #888;
    line-height: 1.6;
    font-size: 0.95rem;
}
.specs-section {
    padding: 5rem 2rem;
    background-color: black;
    color: white;
    max-width: 800px;
    margin: 0 auto;
}
.section-header h2 {
    color: white;
    margin-bottom: 0.5rem;
}
.accordion-item {
    border-bottom: 1px solid #333;
}
.accordion-button {
    background-color: transparent !important;
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
    width: 100%;
    padding: 2rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
}
.accordion-title {
    font-size: 1.5rem;
    font-weight: 500;
    color: #e7e7e7 !important;
}
.accordion-button .icon{
    font-size: 2rem;
    color: #666;
    transition: transform 0.3s ease, color 0.3s ease;
}
.accordion-button.hover .accordion-title{
    color: white !important;
}
.accordion-button:hover .icon{
    color: white;
}
.accordion-button.active .accordion-title {
    color: #bfa1ff !important;
}
.accordtion-button.active .icon{
    transform: rotate(45deg);
    color: #bfa1ff;
}
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    background-color: black;
}
.spec-grid {
    display: grid;
    grid-template-columns :1fr 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
    padding-top: 1rem;
}
.spec-box h4{
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 400;
}
.spec-box p{
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}
@media (max-width: 600px){
    .spec-grid{
        grid-template-columns: 1fr;
    }
}
.cta-section {
    padding: 8rem 2rem;
    background-color: linear-gradient(to bottom, black, #0f0f0f);
    text-align: center;
    position: relative;
    z-index: 10;
}
.cta-container{
    max-width: 600px;
    margin: 0 auto;
}
.cta-container h2{
    font-size: 3.5rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.cta-container p{
    color: #a7a7a7;
    font-size: 1.2rem;
    margin-bottom: 3rem;
    line-height: 1.6;
}
.cta-buttons{
    display: flex;
    justify-content:center;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.btn-cta-primary{
    background-color: white;
    color: black;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;

}
.btn-cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    background-color: #bfa1ff;
}
.btn-cta-secondary {
    background-color: transparent;
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid #333;
    transition: all 0.2s ease;
}
.btn-cta-secondary:hover {
    border-color: white;
    background-color: rgba(255, 255, 255, 0.3);
}
@media (max-width: 768px){
    .cta-container h2 {
        font-size: 2.5rem;
    }
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    .btn-cta-primary, .btn-cta-secondary {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}
@media (max-width: 768px){
    .feature-grid {
        flex-direction: column;
        align-items: center;

    }
    .feature-card {
        width: 100%;
        max-width: 100%;
    }
}


@media (max-width: 1300px ) {
    header{
        padding: 1rem 0.5rem;

    }
    .content{
        margin-top: 85%;

    }

    .Headphone-3d {
        scale: 0.8;
        top: 20%;
        right: 2%;
    }
}

@media (max-width: 768px){
    header{
        padding: 1rem 0.1rem;
    }
    nav{
        display: none;
    }

    header h1{
        font-size: 2rem;
    }
    .btn-signing{
        padding: 0.6rem 1.5rem;
    }

    .content{
        margin-top: 25rem;
    }

    .Headphone-3d {
        scale: 0.5;
        top:25%;
        right: 0;
    }

    .content{
        max-width:30rem;
        margin-left: 10%;
    }

    .tag-box{
        width: 12rem;
    }

    .content h1{
        font-size:2.5rem;
    }

    .description{
        font-size: 1rem;
    }

    .btn-get-started{
        font-size: 0.8rem;
        padding: 0.5rem 1.2rem;
    }

    .btn-signing-main{
        font-size:0.8rem;
        padding: 0.8rem 2rem;
    }
}