body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f8fafc;
}


/* ==========================
        CONTAINER
========================== */

.sell-container {
    max-width: 1200px;
    margin: auto;
    padding: 50px 20px;
}



/* ==========================
        HERO VIDEO PREMIUM
========================== */


.hero {
    position: relative;
    height: 550px;
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 50px;
    box-shadow: 0 25px 60px rgba(0,0,0,.25);
}



.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}



.hero-dark {
    position: absolute;
    inset: 0;
    background: linear-gradient( 135deg, rgba(0,0,0,.45), rgba(0,0,0,.25) );
}



.hero-card {
    position: relative;
    z-index: 2;
    max-width: 750px;
    padding: 45px;
    text-align: center;
    color: white;
    border-radius: 25px;
    background: rgba(0,0,0,.35);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,.25);
}



    .hero-card h1 {
        font-size: 60px;
        margin-bottom: 20px;
        text-shadow: 0 5px 20px rgba(0,0,0,.5);
    }



    .hero-card p {
        font-size: 22px;
        line-height: 1.7;
        text-shadow: 0 3px 10px rgba(0,0,0,.5);
    }



.hero-btn {
    display: inline-block;
    margin-top: 30px;
    padding: 16px 40px;
    background: white;
    color: #7f1d1d;
    border-radius: 40px;
    text-decoration: none;
    font-weight: bold;
    transition: .3s;
}



    .hero-btn:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0,0,0,.3);
    }





/* ==========================
        INTRO
========================== */


.intro {
    background: white;
    margin-top: 50px;
    padding: 40px;
    border-radius: 25px;
    box-shadow: 0 15px 35px rgba(0,0,0,.08);
}



    .intro h2 {
        text-align: center;
        background: linear-gradient( 135deg, #7f1d1d, #ef4444 );
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        font-size: 38px;
    }



    .intro p {
        color: #475569;
        line-height: 1.8;
        font-size: 18px;
    }





/* ==========================
        STEPS
========================== */


.steps {
    margin-top: 50px;
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 30px;
}



.step {
    background: white;
    padding: 35px;
    border-radius: 22px;
    box-shadow: 0 15px 35px rgba(0,0,0,.08);
    transition: .3s;
}



    .step:hover {
        transform: translateY(-8px);
        box-shadow: 0 20px 45px rgba(0,0,0,.15);
    }



.icon {
    font-size: 45px;
    margin-bottom: 15px;
}



.step h3 {
    font-size: 28px;
    background: linear-gradient( 135deg, #7f1d1d, #ef4444 );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}



.step p {
    color: #475569;
    line-height: 1.7;
    font-size: 16px;
}





/* ==========================
        VALUE SECTION
========================== */


.value {
    background: white;
    margin-top: 50px;
    padding: 40px;
    border-radius: 25px;
    box-shadow: 0 15px 35px rgba(0,0,0,.08);
}



    .value h2 {
        text-align: center;
        background: linear-gradient( 135deg, #7f1d1d, #ef4444 );
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        font-size: 38px;
    }



.grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 25px;
}



.card {
    padding: 25px;
    background: #f8fafc;
    border-left: 5px solid #ef4444;
    border-radius: 15px;
}



    .card h3 {
        color: #7f1d1d;
    }



    .card p {
        color: #475569;
        line-height: 1.7;
    }





/* ==========================
        CTA
========================== */


.cta {
    margin-top: 60px;
    text-align: center;
    padding: 60px 30px;
    border-radius: 25px;
    color: white;
    background: linear-gradient( 135deg, #7f1d1d, #ef4444 );
    box-shadow: 0 20px 50px rgba(0,0,0,.15);
}



    .cta h2 {
        font-size: 40px;
    }



    .cta p {
        font-size: 18px;
    }



.btn {
    display: inline-block;
    margin: 25px 10px 0;
    background: white;
    color: #7f1d1d;
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: .3s;
}



    .btn:hover {
        transform: translateY(-4px);
    }



    .btn.secondary {
        background: transparent;
        color: white;
        border: 2px solid white;
    }





/* ==========================
        RESPONSIVE
========================== */


@media(max-width:768px) {


    .sell-container {
        padding: 30px 15px;
    }



    .hero {
        height: 450px;
    }



    .hero-card {
        padding: 25px;
        margin: 15px;
    }



        .hero-card h1 {
            font-size: 36px;
        }



        .hero-card p {
            font-size: 17px;
        }



    .steps {
        grid-template-columns: 1fr;
    }



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



    .intro,
    .value {
        padding: 25px;
    }



    .cta {
        padding: 35px 20px;
    }



        .cta h2 {
            font-size: 30px;
        }



    .btn {
        width: 100%;
        box-sizing: border-box;
        margin-left: 0;
        margin-right: 0;
    }
}