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

body{
    font-family:'Cairo', sans-serif;
    direction:rtl;
    background:linear-gradient(135deg,#0f172a,#1e293b,#334155);
    color:#fff;
}

.header{
    text-align:center;
    padding:35px 15px 10px 15px;
}

.header h1{
    font-size:30px;
    font-weight:700;
}

.header p{
    margin-top:8px;
    font-size:14px;
    opacity:0.7;
}

.container{
    width:95%;
    max-width:1100px;
    margin:25px auto 40px auto;
    background:rgba(255,255,255,0.06);
    backdrop-filter:blur(18px);
    border-radius:20px;
    padding:30px;
    box-shadow:0 0 40px rgba(0,0,0,0.5);
}

.controls{
    display:flex;
    justify-content:center;
    gap:12px;
    flex-wrap:wrap;
}

input[type="date"]{
    padding:12px;
    font-size:15px;
    border-radius:8px;
    border:none;
    outline:none;
}

button{
    padding:12px 20px;
    font-size:15px;
    border-radius:8px;
    border:none;
    cursor:pointer;
    font-weight:600;
    transition:0.3s;
}

.btn-primary{
    background:#3b82f6;
    color:white;
}

.btn-primary:hover{
    background:#2563eb;
}

.btn-secondary{
    background:#10b981;
    color:white;
}

.btn-secondary:hover{
    background:#059669;
}

.message{
    margin-top:15px;
    text-align:center;
    color:#f87171;
    font-weight:600;
}

iframe{
    width:100%;
    height:75vh;
    margin-top:25px;
    border:none;
    border-radius:12px;
    background:white;
    box-shadow:0 0 20px rgba(0,0,0,0.5);
}

.footer{
    text-align:center;
    padding:30px 15px;
    font-size:14px;
    margin-top:40px;
    background:rgba(0,0,0,0.3);
}

.footer .designer{
    font-size:17px;
    font-weight:600;
    margin-bottom:8px;
    color:#38bdf8;
}

.footer strong{
    color:#facc15;
}

.footer .rights{
    opacity:0.6;
    font-size:13px;
}

@media(max-width:600px){

    .header h1{
        font-size:22px;
    }

    .container{
        padding:20px;
    }

    iframe{
        height:65vh;
    }

}