/* HERO */
.sample-hero{
    padding: 80px 0;
    background: linear-gradient(45deg, #0077b6, #023e8a);
}

.sample-hero h1{
    font-size: 42px;
}

/* GRID SECTION */
.sample-grid{
    background: #111827;   /* ✅ Correct dark background */
    padding: 60px 0;
}

/* CARD DESIGN */
.sample-card{
    background: #111827;   /* ✅ White Card */
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    color: #111827;
    transition: 0.4s ease;
    border: 1px solid #e5e7eb;
}

.sample-card:hover{
    transform: translateY(-10px);   /* ✅ Fixed */
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}

/* A4 FORMAT PREVIEW */
.a4-preview{
    width: 130px;
    height: 170px;
    margin: auto;
    background: linear-gradient(to bottom, #ffffff, #f1f5f9);
    color: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
    border-radius: 10px;
    margin-bottom: 18px;
    position: relative;
    box-shadow: 
        0 15px 35px rgba(0,0,0,0.2),
        inset 0 0 0 1px rgba(0,0,0,0.05);
    transition: 0.4s ease;
}

/* Paper Fold Effect */
.a4-preview::before{
    content:"";
    position:absolute;
    top:0;
    right:0;
    width:25px;
    height:25px;
    background: linear-gradient(135deg,#e2e8f0 50%,transparent 50%);
    border-top-right-radius:10px;
}

/* Hover Effect */
.sample-card:hover .a4-preview{
    transform: scale(1.05);
}

/* BUTTONS (Rectangle) */
.btn-primary{
    background: linear-gradient(45deg, #00b4d8, #0077b6);
    border: none;
    border-radius: 4px;
}

.btn-primary:hover{
    background: linear-gradient(45deg, #0077b6, #023e8a);
}

.btn-outline-light{
    border-radius: 4px;
}

/* FOOTER */
.main-footer{
    background: linear-gradient(135deg,#0f172a,#1e293b);
    color:#cbd5e1;
    padding:80px 0 30px;
}

.footer-container{
    max-width:1200px;
    margin:auto;
    display:flex;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
}

.footer-box{
    flex:1;
    min-width:250px;
}

.footer-box h3,
.footer-box h4{
    color:#ffffff;
    margin-bottom:20px;
    font-weight:600;
}

.footer-box p{
    margin-bottom:10px;
    font-size:14px;
    color:#94a3b8;
    transition:0.3s;
}

.footer-box p:hover{
    color:#ffffff;
}

.footer-bottom{
    text-align:center;
    margin-top:50px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,0.1);
    font-size:13px;
    color:#94a3b8;
}

/* WHATSAPP FLOAT */
.whatsapp-float{
    position: fixed;
    bottom: 25px;
    left: 25px;
    z-index: 9999;
}

.whatsapp-float img{
    width: 55px;
    height: 55px;
    border-radius: 50%;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    transition: 0.3s ease;
}

.whatsapp-float img:hover{
    transform: scale(1.1);
}