body {
    background: #1aa558;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: "Tiro Bangla", Arial, sans-serif;
    margin: 0;
}
.navbar {
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}
.navbar-brand {
    color: #1f2937;
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center; /* fixed typo */
}
.navbar-brand img {
    width: 160px; /* fixed width for consistency */
    height: auto;
    margin-right: 10px;
}
.btn-danger {
    background-color: #dc2626;
    border: none;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    transition: background-color 0.3s;
}
.btn-danger:hover {
    background-color: #b91c1c;
}
.btn-danger:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.3);
}
.container-fluid {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.welcome-message {
    background-color: white;
    color: #5a5a5a;
    padding: 15px;
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    font-family: 'Tiro Bangla', sans-serif;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.welcome-message b.text-success {
    color: #1aa558;
}
.welcome-message b.text-danger {
    color: #dc2626;
}
.alert-danger {
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 14px;
}
.card {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    border: 1px solid #e5e7eb;
}
.card-header {
    background-color: #cbcbcb;
    padding: 20px 0;
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    border-radius: 8px 8px 0 0;
    margin-bottom: 20px;
}
.form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.form-group {
    margin-bottom: 10px;
}
.form-label {
    color: #1f2937;
    font-size: 14px;
    font-weight: 600;
    font-family: "Tiro Bangla", Arial, sans-serif;
    margin-bottom: 5px;
    display: block;
}
.form label {
    font-size: 22px;
    font-weight: 600;
    font-family: "Tiro Bangla", Arial, sans-serif;
    color: #1f2937;
    margin: 0 0 10px 0;
    border-radius: 6px;
}
#payment-card {
    background-color: #faebd7;
    padding: 15px 0;
}
.form p {
    color: #1aa558;
    font-size: 16px;
    font-weight: 500;
}
.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.form-control:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}
.form-control::placeholder {
    color: #9ca3af;
}
.btn-success {
    background-color: #1aa558;
    color: #ffffff;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}
.btn-success:hover {
    background-color: #15803d;
}
.btn-success:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(26, 165, 88, 0.3);
}
#bKash_button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: transform 0.3s, opacity 0.3s;
}
#bKash_button img {
    width: 50%;
    transition: transform 0.3s;
}
#bKash_button:hover img {
    transform: scale(1.05);
}
#bKash_button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(26, 165, 88, 0.3);
}
.footer-copyright {
    background-color: #ffffff;
    margin: 25px 430px 0;
    border-radius: 10px;
}
.footer-copyright a img {
	width: 40%;
	margin-left: 10px;
}
footer {
    background-color: white;
    margin-top: 40px;
    text-align: center;
    color: #797979;
    font-size: 20px;
    padding: 10px;
    width: 100%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
@media (max-width: 576px) {
    .card {
        padding: 20px;
    }
    .form p {
        font-size: 14px;
    }
    .welcome-message {
        font-size: 14px;
        margin-top: 20px;
    }
    .navbar .container {
        flex-direction: row; /* stack logo & button */
        gap: 10px;
    }
    .navbar-brand {
        font-size: 18px;
        margin-left: 15px;
        justify-content: center;
    }
    .navbar-brand img {
        width: 120px; /* smaller logo */
    }
	.navbar .btn-wrapper {
		margin-right: 15px;
	}
    .navbar .btn {
        width: 100%; /* full-width logout button */
        text-align: center;
        font-size: 16px;
    }
    .btn-danger {
        padding: 6px 15px;
        font-size: 12px;
        margin-right: 20px;
    }
    .card-header {
        font-size: 16px;
        padding: 15px 0;
    }
    .form label {
        font-size: 18px;
        /* padding: 12px 0; */
    }
    #bKash_button img {
        width: 100%;
    }
	.footer-copyright {
		background-color: #ffffff;
		margin: 25px 25px 0;
		border-radius: 10px;
	}
    footer {
        font-size: 16px;
        margin-top: 20px;
    }
}
.bkash{
    width: 100%;
    background-image: url('../img/b-logo.png');
    background-repeat: no-repeat;
    border: none;
    background-color: #fff;
    background-size: cover;
}