* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; background-color: #f0f2f5; display: flex; justify-content: center; align-items: center; height: 100vh; }
.login-card { background: white; padding: 40px; border-radius: 16px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); width: 100%; max-width: 380px; }
h1 { font-size: 24px; color: #1a1a1a; margin-bottom: 8px; }
p { color: #666; margin-bottom: 24px; font-size: 14px; }

.input-group { position: relative; width: 100%; margin-bottom: 16px; }
.input-group input { width: 100%; padding: 14px 45px; border: 1px solid #ddd; border-radius: 8px; font-size: 16px; transition: border 0.3s; }
.input-group i { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: #4267B2; font-size: 1.2rem; }

.input-group input:focus { border-color: #4267B2; outline: none; }
button { width: 100%; padding: 14px; background-color: #4267B2; color: white; border: none; border-radius: 8px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background 0.3s; margin-top: 10px; }
button:hover { background-color: #365899; }
.register-link { margin-top: 20px; text-align: center; font-size: 14px; color: #666; }
.register-link a { color: #4267B2; text-decoration: none; font-weight: 600; }
.register-link a:hover { text-decoration: underline; }