body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(to right, #1f3970 50%, #ffffff 50%);
    display: flex;
    justify-content: flex-end;
    align-items: center;
    min-height: 100vh; 
    margin: 0;
    padding: 70px; 
    box-sizing: border-box;
}
.corner-image {
  position: fixed;  
  top: 20px;          
  left: 20px;      
  width: 200px;    
  height: auto;    
  z-index: 1000; 
    }
.login-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 350px; 
    text-align: center;
    box-sizing: border-box;
}

.login-card input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-sizing: border-box;
}

.login-card button {
    width: 100%;
    padding: 12px;
    background-color: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
}

.login-card button:hover {
    background-color: #5a6fd6;
}

.msg {
    font-size: 14px;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
    background: #fdf2f2;
    color: #d12b2b;
}

.admin-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 600px;
    box-sizing: border-box;
}

h2 {
    color: #333;
    margin-top: 0;
}


.table-responsive {
    width: 100%;
    overflow-x: auto; 
    -webkit-overflow-scrolling: touch; 
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    min-width: 400px; 
}

th, td {
    padding: 12px;
    border-bottom: 1px solid #eee;
    text-align: left;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.delete-btn {
    color: #ff4d4d;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.delete-btn:hover {
    color: #cc0000;
}

.logout-link {
    display: inline-block;
    margin-top: 20px;
    text-decoration: none;
    color: #667eea;
    font-weight: 500;
}

.logout-link:hover {
    text-decoration: underline;
}


@media (max-width: 600px) {
    .admin-card {
        padding: 15px; 
    }

    th, td {
        padding: 8px; 
        font-size: 14px; 
    }

    h2 {
        font-size: 1.4rem;
    }
}

@media (max-width: 400px) {
    .login-card {
        padding: 1.5rem;
    }
    
    body {
        padding: 10px;
    }
}