Modal login form, modern design, sleek lines, glass-like surface, reflective material, subtle gradient effect, dark blue and silver color scheme, minimalist aesthetic, simple typography, username and password fields with rounded corners, soft glow effect on focused fields, login button with bold font and vibrant orange color, shadow underneath the modal to give depth, blurred background to emphasize the form, 3/4 composition, shallow focus to highlight the form, warm and cozy ambient lighting.