body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}
.login-container {
    width: 400px;
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
.logo {
    text-align: center;
    margin-bottom: 30px;
}
.logo img {
    width: 80px;
    height: 80px;
    margin-bottom: 15px;
}
.logo h1 {
    font-size: 2rem;
    color: #2c3e50;
    margin: 0;
    font-weight: 600;
    letter-spacing: 1px;
}
.logo p {
    color: #7f8c8d;
    margin-top: 10px;
    font-size: 1rem;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
}
.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}
.form-group input:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}
button {
    width: 100%;
    padding: 12px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}
button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
}
.error {
    background: #fee2e2;
    color: #dc2626;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.success {
    background: #dcfce7;
    color: #16a34a;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.footer {
    margin-top: 30px;
    text-align: center;
    color: #7f8c8d;
    font-size: 0.9rem;
}
.powered-by {
    color: #3498db;
    font-weight: 500;
}
.navtech {
    color: #2c3e50;
    font-weight: 600;
}